KR100553037B1 - Indoor unit of air-conditioner - Google Patents

Abstract

The present invention relates to an air conditioner, and more particularly, to a structure of an air conditioner indoor unit in which an intake port is positioned on a rear surface and a heat exchanger is positioned between an intake port and a blower fan so that indoor air sucked from the rear surface is discharged to the front side. It is about.

In the indoor unit of the air conditioner in which the inlet and the outlet are formed to suck the indoor air and discharge the inhaled air back to the room, the indoor unit of the air conditioner according to the present invention for achieving the object as described above is And a front frame provided with a base on which a plurality of suction ports are formed, a front discharge port that is opened and closed by moving the front panel left and right, and / or a side discharge port formed on at least one side of the left and right edges.

According to the indoor unit of the air conditioner according to the present invention, the suction port is formed on the rear surface of the indoor unit, thereby preventing the heat exchanger from being exposed to the outside during the indoor unit operation and stop. In addition, by installing a heat exchanger between the rear suction port and the blower fan, the indoor air from the suction port to the discharge port to form a straight flow path, thereby reducing the friction and noise caused by the air flow.

Front Panel, Front Frame, Blower Fan, Heat Exchanger, Orifice, Base

Description

Indoor unit of air conditioner

1 is a perspective view of a conventional air conditioner indoor unit sucked to the front and discharged to the front.

2 is an exploded perspective view of the indoor unit.

3 is a perspective view showing a flow path of air passing through the indoor unit;

4 is a front perspective view of the indoor unit of the air conditioner according to the spirit of the present invention.

5 is a rear perspective view of the indoor unit.

Figure 6a is a perspective view showing a front frame of the indoor unit is stopped in accordance with the spirit of the present invention.

Figure 6b is a perspective view showing a front frame of the indoor unit is in operation in accordance with the spirit of the present invention.

7 is an exploded perspective view of the indoor unit of the air conditioner according to the spirit of the present invention.

Figure 8 is a rear perspective view showing a state in which air is sucked through the back of the air conditioner indoor unit according to the spirit of the present invention.

9 is a front perspective view showing a state in which air is discharged through the front of the indoor unit.

10 is a perspective view showing a state in which the indoor unit of the air conditioner according to the spirit of the present invention is installed spaced apart from the wall.

<Description of the symbols for the main parts of the drawings>

110: front panel 120: front frame 130: blowing fan

140: orifice 150: heat exchanger 160: base

170: total length portion 180: drain pan 190: piping cover

200: wall 300: mounting hook 400: hook groove

The present invention relates to an air conditioner, and more particularly, to a structure of an air conditioner indoor unit in which an intake port is positioned on a rear surface and a heat exchanger is positioned between an intake port and a blower fan so that indoor air sucked from the rear surface is discharged to the front side. It is about.

In general, the air conditioner performs a refrigeration cycle of the refrigerant circulating therein compression, condensation, expansion and evaporation. In particular, in the case of an air conditioner, the refrigerant is compressed to high temperature and high pressure, and then heat is released to the outside from the condenser, and the temperature and pressure drop considerably while passing through the expansion valve. The low temperature and low pressure refrigerant passes through the evaporator, absorbs heat, and then enters the condenser again.

Here, the compression process, the condensation process and the expansion process are performed in the outdoor unit of the air conditioner, and the evaporation process is performed by the blower fan and the heat exchanger of the indoor unit.

In addition, the air conditioner is largely divided into a window type air conditioner in which a refrigeration cycle apparatus is mounted in one body and installed in a window, and a separate type air conditioner installed in a city and an outdoor unit by separating an indoor unit and an outdoor unit.

In addition, in the case of the separate type air conditioner, it is classified into a wall-mounted type, an upper tooth type, a ceiling-hanger type, and a ceiling-embedded type according to the installation method.

In addition, the indoor unit of the structure that can be used as a wall-mounted or upper teeth type, and can also be used as a ceiling-mounted type according to the needs of the user is called a convertible indoor unit.

1 is a perspective view of a conventional air conditioner indoor unit sucked to the front surface and discharged to the front surface, FIG. 2 is an exploded perspective view of the indoor unit, and FIG. 3 is a perspective view showing a flow path of air passing through the indoor unit.

1, 2, and 3, the conventional air conditioner indoor unit 10 includes a front panel 20 including a display unit 21 on which a signal from a remote controller is received to indicate whether the air conditioner is operated, and the front panel. The filter 30 which contacts the indoor air sucked from the upper side of the panel 20 to filter out the foreign matter contained in the suction air, and the filter 30 and the front panel 20 are seated to form a front part. A heat exchanger 60 which lowers the temperature of the intake air by contacting the front frame 35, the purified air passing through the front frame 35, and formed at a rear side of the heat exchanger 60; Blowing fan 50 for sucking the low-temperature indoor air passed through the (60), orifice 70 for guiding the flow of air in the low-temperature state sucked by the blowing fan 50, and the orifice 70 Base equipped with discharge part through which air guided by 40 is included.

In detail, a drain pan 80, which condenses on the outer wall of the heat exchanger 60 and collects moisture in the air, is included, and an upper portion 75 of the orifice 70 controls the driving of electrical components. It is seated.

In more detail, the upper inner surface of the base 40, the low-temperature air sucked into the blowing fan 50 through the orifice 70 is not discharged to the upper side, the air flows so as to discharge to the left and right sides of the indoor unit The flow guide 90 for guiding is seated.

Hereinafter, the function and operation of the indoor unit 10 of the air conditioner will be described.

First, when an operation signal is received by a remote controller or a manual unit on the display unit 21 mounted on the front panel 20 of the indoor unit 10, the upper side of the front panel 20 is opened. In other words, the opened portion becomes the suction port 25.

In addition, when the motor (not shown) mounted inside the indoor unit 10 is operated, the blowing fan 50 is rotated, and the indoor air is sucked through the suction port 25.

The sucked indoor air is purified through the air filter 30 and then passed through the heat exchanger 60. Since the pressure and temperature of the refrigerant flowing inside the heat exchanger 60 are very low, the sucked indoor air Is deprived of heat while in contact with the heat exchanger (60). Thus, the temperature of the indoor air passing through the heat exchanger 60 drops.

The indoor air passing through the heat exchanger 60 is introduced into the blowing fan 50 through the orifice 70, and the air introduced into the blowing fan 50 is discharged back into the room through the discharge ports 31 and 33. do.

However, in the conventional air conditioner indoor unit as described above, the indoor air is sucked into the front and discharged to the front. In more detail, the indoor air is sucked into the front of the indoor unit is discharged to the front both sides and the lower side.

 Therefore, the flow path of the indoor air from the inlet to the outlet is not in a straight line but in a "U" shape or a "L" shape. As a result, there is a problem in that the flow resistance of the air is increased compared to an indoor unit in which the flow path of the air is formed in a single line. And, there is a problem that the noise occurs in the indoor unit as the flow resistance of the air increases.

In addition, when the suction port 25 and the discharge ports 31 and 33 are formed on the same plane of the front surface of the indoor unit, the area of the suction port 25 is limited, so that the indoor air to be sucked is exchanged with the heat exchanger 60. A problem arises in that the area of contact with) becomes small.

In addition, when the suction port 25 is located at the front surface, when the front panel 20 is opened, there is a problem that the heat exchanger 60 is exposed to the outside so that the appearance is not good.

In addition, when the suction port 25 is located on the front surface, the low-temperature air discharged to the front surface is again sucked through the suction port 25, the temperature of the air sucked through the suction port 25 than the actual temperature of the indoor space A problem arises that becomes low. As a result, the air conditioner does not obtain accurate temperature data, resulting in a problem that the efficiency of the indoor unit 10 is lowered.

The present invention has been proposed to solve the above problems, to provide an indoor unit of the air conditioner so that the intake port is formed on the back of the indoor unit, so that the heat exchanger is not exposed to the outside during operation and stop of the indoor unit. The purpose.

In addition, an object of the present invention is to provide an indoor unit of an air conditioner in which a heat exchanger is provided between the rear suction port and the blower fan so that indoor air forms a straight flow path from the suction port to the discharge port.

In addition, it is an object to reduce the friction and noise caused by the air flow by making the flow path of the air flowing into the indoor unit close to the straight form as described above.

It is also an object of the present invention to provide an indoor unit of an air conditioner in which an intake port is formed on a rear surface of an indoor unit so that discharged low-temperature air is not sucked back into the intake port.

In addition, it is an object of the present invention to provide an indoor unit of an air conditioner by forming an intake port on the rear surface of the indoor unit to maximize the contact area with the heat exchanger by increasing the area of the intake port and at the same time increasing the utilization of the front panel portion.

In the indoor unit of the air conditioner in which the inlet and the outlet are formed to suck the indoor air and discharge the inhaled air back to the room, the indoor unit of the air conditioner according to the present invention for achieving the object as described above is And a front frame provided with a base on which a plurality of suction ports are formed, a front discharge port that is opened and closed by moving the front panel left and right, and / or a side discharge port formed on at least one side of the left and right edges.

In addition, the indoor unit of the air conditioner according to the present invention is a front panel; A front frame including a front discharge port opened and closed by moving the front panel left and right and a side discharge port formed on at least one side of the left and right edges; A blowing fan formed at a rear side of the front frame to allow indoor air to be sucked; An orifice formed at a rear side of the blowing fan and guiding a direction of air sucked by the rotation of the blowing fan; A heat exchanger formed at a rear side of the orifice and contacting the sucked air to lower the temperature of the suction air; And a base formed on the rear side of the heat exchanger, coupled to the front frame, and having a suction port formed on at least one side thereof.

By the indoor unit of the air conditioner as described above, there is an effect that the indoor air is sucked into the rear surface of the indoor unit is discharged to the front. In addition, since the flow path of the intake air is linear, the efficiency of the indoor unit is increased, and the flow loss is reduced.

Hereinafter, specific embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the spirit of the present invention is not limited to the embodiments presented, and other embodiments included within the scope of other inventive inventions or the scope of the present invention can be easily made by adding, changing, or deleting other elements. I can suggest.

4 is a front perspective view of the air conditioner indoor unit according to the spirit of the present invention, and FIG. 5 is a rear perspective view of the indoor unit.

4 and 5, the exterior of the air conditioner indoor unit 100 according to the present invention includes a front frame 110 and a front frame 120 on which the front panel 110 is seated to form a front cover. And a base 160 coupled to the front frame 120 to form a rear cover, and a pipe cover 190 formed below the indoor unit to accommodate various pipes entering the indoor unit.

In detail, the front panel 110 may be provided with a display unit 111 showing an operating state of the indoor unit 100, and at least one side of the front frame 120 discharges the suctioned indoor air 121. Is formed. Details of the shape and operation of the front panel 110 and the front frame 120 will be described later. And, at least one side of the base 160 is formed with a suction port 161 so that the indoor air can be sucked.

In addition, the central surface of the base 160 may be a suction grill 162 of the net form is formed to suck the indoor air through the suction grill 162.

In addition, a filter insertion hole 163 may be formed at a bottom of the base 160 to insert a filter (not shown) for filtering out foreign substances contained in the indoor air to be sucked.

Here, the position and shape of the filter insert 163 is not limited to the embodiment of the present invention, it will be appreciated that various positions and shapes suitable for the purpose of the present invention can be proposed.

The movement path of the air entering the indoor unit 100 is sucked through at least one suction port 161 and 162 and the filter insertion hole 163 formed at one side of the base 160, and then the front frame 120. Is discharged through at least one discharge port 121 formed on one side of the.

Figure 6a is a perspective view showing a front frame of the indoor unit is stopped in accordance with the spirit of the present invention, Figure 6b is a perspective view showing a front frame of the indoor unit in operation in accordance with the spirit of the present invention.

6A and 6B, the front frame 120 according to the present invention includes a front panel 110, a discharge port 121 formed at at least one side of an edge of the front frame 120, and the front frame ( The front discharge port 122 is formed long in front of the 120 is included.

In detail, the front panel 110 is formed with a display unit 111 showing an operating state of the indoor unit 100 on one side as described above, and may move left and right on the front frame 120.

In more detail, when the front panel 110 is located at the left side, the indoor unit 100 is in a stopped state, and the front discharge port 122 is closed. In addition, when the front panel 110 is located at the right side, the indoor unit 100 is operating, and the front discharge port 122 is open. In other words, opening and closing of the front discharge port 122 is performed by the front panel 110.

Here, the position and size of the front discharge port 122 and the seating shape of the front panel 110 is not limited to the embodiment of the present invention.

In addition, the discharge port 121 may be formed in the edge portion of the front panel 110, it is possible to form on the left and right side edges or the upper and lower side of the front frame 120. And, as in the embodiment of the present invention, the front discharge port 122 may be formed on the front of the front frame 120, the discharge port may be formed in the side edge portion opposite to the front discharge hole 122. As described above, the number or formation positions of the discharge holes 121 and 122 may be variously estimated without being limited to the embodiment of the present invention.

In addition, the opening and closing of the discharge port 121 may be made by vanes, and the wind direction adjusting device 125 may be formed at the discharge hole to adjust the direction of the wind discharged.

7 is an exploded perspective view of the indoor unit of the air conditioner according to the spirit of the present invention.

Referring to FIG. 7, the indoor unit 100 of the air conditioner according to the present invention includes a front panel 110 that forms a front appearance of the indoor unit 100, and a front frame on which the front panel is seated to form a front part ( 120, a blower fan 130 formed at the rear side of the front frame 120 to suck indoor air, and formed at a rear side of the blower fan 130 and sucked by the rotation of the blower fan. An orifice 140 for guiding a direction of the heat exchanger, and a heat exchanger 150 and the heat exchanger 150 formed at a rear side of the orifice 140 and contacting the sucked air to lower the temperature of the suction air. It is formed on the back side, and includes a base 160 coupled to the front frame 120.

In addition, as described above, the indoor unit is assembled in the order of the front panel 110, the front frame 120, the blowing fan 130, the orifice 140, the heat exchanger 150, and the base 160 in order. It is characterized by.

In detail, the orifice 140 has a predetermined shape and predetermined shape according to the position or shape of the guide hole 144 for guiding the air sucked into the blowing fan 130 and the discharge port formed in the front frame 120. Air guide guide 141 and the wind direction control device 142 is formed in the position of the.

On the other hand, it is mounted in the upper space between the front frame 120 and the orifice 140, and further formed of the electric part 170 for controlling the drive of the motor and the electric components to rotate the blowing fan 130, A drain pan 180 is formed below the heat exchanger 150 to collect condensed water formed on the surface of the heat exchanger 150.

In addition, a pipe cover 190 is further formed below the drain pan 180 to accommodate various pipes connected to the drain pan 180 and the indoor unit 100, according to the spirit of one complete invention. The indoor unit of the air conditioner is formed.

Hereinafter, the function and operation of each part will be described.

First, the front panel 110 is attached to the front of the indoor unit 100 according to the present invention to form a beautiful appearance of the indoor unit. And, as described above, one side of the front panel 110 may be formed with a display unit showing whether the indoor unit 100 is in operation and / or operation state. In addition, in order to make the aesthetics of the indoor unit look neat and beautiful, the front panel 110 may be attached with a finishing material or a pattern may be added.

In addition, the front frame 120 is, as described above, the front panel 110 is attached, the edge portion may be formed to be inclined at a predetermined angle, the inner central surface of the front frame 120 is A motor mount (not shown) may be mounted to mount a motor for rotating the blowing fan 130.

In addition, the blowing fan 130 is rotated by the operation of the motor attached to the front frame 120, so that the indoor air is sucked into the indoor unit (100). And, the blowing fan 130 may be installed at least one or more according to the size or use of the indoor unit (100).

In addition, the orifice 140 serves to guide the flow of air sucked into the blower fan 130, and the air sucked through the guide hole 144 is provided by the air guide guide 141. The direction of air flow is determined and discharged to the discharge port 121.

In detail, the air guide guide 141 may be formed in various ways according to the direction and the number of discharge holes 121.

In addition, the heat exchanger 150 is composed of a heat exchange pipe 151 bent a plurality of times, the refrigerant in the low temperature, low pressure state passing through the expansion valve (not shown) flows in the heat exchange pipe 151.

Therefore, the air sucked into the indoor unit 100 is deprived of heat while passing through the heat exchanger 150, thereby bringing it to a low temperature state. In this process, water vapor contained in the intake air may be cooled to condense on the surface of the heat exchanger 150. In addition, the larger the area of the heat exchanger 150 is, the more excellent the cooling effect is, so that the shape may be inclined at a flat rectangular shape or a predetermined angle. In addition, a drain pan 180 is formed below the heat exchanger 150 to collect condensed water formed on the surface of the heat exchanger 150 so that the condensed water does not leak from the indoor unit 100.

In addition, the base 160 is formed with an inlet 161 through which at least one side air can be sucked, and can be freely selected according to the volume and shape of the indoor unit in the shape and number of the inlet. In addition, as a form of the suction port, when the indoor unit 100 is spaced apart from the wall surface by a predetermined interval, the suction grille 162 may be formed so that air can also be sucked to the center surface of the base.

In addition, a filter insertion opening 163 may be formed at one side of the base 160 to insert a filter (not shown) to filter out impurities such as dust included in intake air. The filter unit may be inserted between the base 160 and the heat exchanger 150 to prevent impurities from adhering to the surface of the heat exchanger 150. In addition, the filter insertion hole 163 may be an intake port of indoor air. Here, the shape and position of the filter insertion port 163 is not limited to the embodiment of the present invention.

In addition, the edge of the base 160 is formed to be inclined at a predetermined angle, so that the indoor unit 100 can be freely installed in the corner portion of the wall surface.

In addition, the back of the base 160 may be formed with a latch or a locking groove (not shown) to be attached to the indoor unit 100.

8 is a rear perspective view illustrating a state in which air is sucked through the rear surface of the indoor unit of the air conditioner according to the spirit of the present invention.

Referring to FIG. 8, at least one suction port may be formed in the base 160 of the indoor unit, and a net suction grill 162 may be formed in the center of the base 160. In addition, suction ports 161 and 164 may be further formed on the upper surface of the base 160 and both side edge portions thereof.

In addition, a filter insertion hole 163 through which a filter may be inserted is formed at a lower edge portion of the base 160. As described above, the filter insertion hole 163 may also be one suction hole.

In detail, when the indoor unit 100 according to the present invention is attached to the wall surface, air may be sucked through the upper, lower, left, and right sides except for the suction grille 162. However, if the indoor unit 100 is spaced apart from the wall at a predetermined interval, air may also be sucked through the suction grille 162.

On the other hand, if the indoor unit 100 is installed in the corner portion where the wall and the wall, the suction port, the suction port 161, 162 and the filter insertion port formed in the upper and lower and the center portion except for the suction port 164 formed on both side edges Air may be sucked in through 163.

 9 is a front perspective view illustrating a state in which air is discharged through a front surface of the indoor unit.

Referring to FIG. 9, at least one discharge hole may be formed in the front frame 120 as described above. The side discharge hole 121 is formed at a side edge portion of the front frame and a lower side formed at a lower side thereof. The discharge port 123 is included. And, it is obvious that the discharge port (not shown) may be formed on the upper side according to the shape of the air guide guide 141.

In addition, a rectangular discharge hole is formed at the edge of the front portion of the front frame 120 to form a front discharge hole 122 to be opened and closed by the left and right movement of the front panel 110.

In addition, during operation of the indoor unit 100, each discharge port may be set to be selectively opened and closed.

10 is a perspective view showing a state in which the indoor unit of the air conditioner according to the spirit of the present invention is installed spaced apart from the wall surface.

Referring to Figure 10, the indoor unit of the air conditioner according to the present invention can be installed spaced apart from the wall by a predetermined interval.

In detail, a hook groove 400 for allowing the indoor unit 100 to be attached to the wall surface 200 is formed at the base 160 of the indoor unit 100, and the wall surface 200 on which the indoor unit 100 is to be installed. ) May be provided with an installation hook 300 formed to protrude by a predetermined interval.

As described above, since the indoor unit 100 is spaced apart from the wall surface 200 by a predetermined interval, the inlet can be installed in the center surface of the base, and thus, a large amount of indoor air is sucked in, thereby improving indoor unit efficiency. There is an advantage to increase.

In addition, it turns out that the hook groove 400 can be formed on the inclined side surface of the base 160 so that the indoor unit 100 can be installed at the corner portion of the wall surface.

The shape or attachment method of the installation hanger 300 and the hook groove 400 is not limited to the embodiment of the present invention, various shapes or methods can be proposed according to the size or attachment location of the indoor unit (100).

According to the indoor unit of the air conditioner according to the present invention, the suction port is formed on the rear surface of the indoor unit, thereby preventing the heat exchanger from being exposed to the outside during the indoor unit operation and stop.

In addition, by installing a heat exchanger between the rear suction port and the blower fan, the indoor air from the suction port to the discharge port to form a straight flow path, thereby reducing the friction and noise caused by the air flow.

In addition, since the suction port is formed on the rear surface of the indoor unit, there is an effect that the discharged low-temperature air is not sucked back into the suction port.

In addition, the suction port is formed on the rear surface of the indoor unit, thereby increasing the area of the suction port to maximize the contact area with the heat exchanger and at the same time increasing the utilization of the front panel.

Claims (8)

In the indoor unit of the air conditioner in which the suction port and the discharge port are formed to suck the indoor air and to discharge the sucked air back to the room, A base in which a plurality of suction ports are formed, An indoor unit of an air conditioner, including: a front frame provided with a front discharge opening and / or a side discharge opening formed on at least one side of the left and right edges, the front panel being opened and closed by moving from side to side. Front panel; A front frame including a front discharge port opened and closed by moving the front panel left and right and a side discharge port formed on at least one side of the left and right edges; A blowing fan formed at a rear side of the front frame to allow indoor air to be sucked; An orifice formed at a rear side of the blowing fan and guiding a direction of air sucked by the rotation of the blowing fan; A heat exchanger formed at a rear side of the orifice and contacting the sucked air to lower the temperature of the suction air; And The indoor unit of the air conditioner is formed on the rear side of the heat exchanger, coupled to the front frame, the inlet is formed on at least one side. The method according to claim 1 or 2, Indoor unit of the air conditioner, characterized in that the grille is formed in the net inlet. The method according to claim 1 or 2, The indoor unit of the air conditioner, characterized in that the filter insertion opening is further formed on one side of the base to insert a filter for purifying the intake air. The method according to claim 1 or 2, Indoor unit of the air conditioner, characterized in that the inlet is formed on the upper and lower sides and / or left and right sides of the base. The method according to claim 1 or 2, Indoor unit of the air conditioner, characterized in that the discharge port is included in the upper and / or lower side edge of the front frame. The method according to claim 1 or 2, The discharge port is an indoor unit of the air conditioner that can be selectively opened and closed according to the user's intention. The method according to claim 1 or 2, Indoor unit of the air conditioner, characterized in that the opening and closing of the discharge port formed in the edge of the front frame is driven by the vane.

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