KR100529921B1 - Indoor unit of duct type air-conditioner - Google Patents

Abstract

The present invention relates to an indoor unit of a duct-connected air conditioner, which can be safely and cost-reduced by blowing air using hot water of a boiler or a hot water pipe, the cabinet; An upper panel disposed on an upper surface of the cabinet and having an air inlet and an air outlet; A barrier separating the inside of the cabinet into an air intake passage and an air discharge passage; A blowing unit installed at one side of the air discharge passage; It characterized in that it comprises a secondary heating device disposed on the upper side of the blowing unit.

Description

Indoor unit of duct type air conditioner

The present invention relates to a duct-connected air conditioner, and more particularly, to an indoor unit of a duct-connected air conditioner capable of heating a room using hot water.

In general, the air conditioner is a heater, an air conditioner, a purifier, etc., which is installed for the purpose of cooling or heating the room or purifying the air to create a more comfortable indoor environment for humans. It is a device that supplies heat to the building or room after heat-exchanging the suction air.

Such air conditioners are classified into a window type and a separate type or a split type.

The integrated type and the separate type are functionally the same, but the integrated type is an indoor heat exchanger, a compressor, an outdoor heat exchanger, and an expansion device installed as a single device. An outdoor heat exchanger (condenser or evaporator), a compressor, an expansion device, and a blower were installed at each floor to connect two separate devices with refrigerant pipes.

In general, an air conditioner is a heater, an air conditioner, a purifier, etc., which is installed for the purpose of cooling or heating the room or purifying the air to create a more comfortable indoor environment for humans. It is a device that supplies heat to the building or room after heat-exchanging the suction air.

Such air conditioners are classified into a window type and a separate type or a split type.

The integrated type and the separated type are functionally the same, but the integrated type is one in which the indoor heat exchanger, the compressor, the outdoor heat exchanger, and the expansion mechanism are installed as a single device, and the separate type is provided with the indoor heat exchanger (evaporator or condenser) and the blower in the indoor unit, and the outdoor unit. An outdoor heat exchanger (condenser or evaporator), a compressor, and a blower are installed at each other, and an expansion mechanism is installed in at least one of the indoor unit and the outdoor unit to connect two devices separated from each other by a refrigerant pipe.

Recently, due to the space occupied by the indoor unit, the duct-connected air conditioner that mounts the indoor unit on a ceiling, a wall, a veranda, or the like outdoors on a rooftop, and absorbs / exhales indoor air through separate suction and discharge ducts has increased. to be.

1 is a perspective view showing the indoor unit of the duct-connected air conditioner according to the prior art, Figure 2 is an internal configuration diagram showing the internal structure of the indoor unit of the duct-connected air conditioner according to the prior art.

1 and 2, the indoor unit 1 of the conventional duct-connected air conditioner includes a cabinet 6 having an air inlet 2 formed at a lower portion thereof and an air outlet 4 formed at an upper portion thereof; A blower 20 installed at one side of the cabinet 6 to suck air into the air inlet 2 and to be discharged to the air outlet 4, and installed at the other side of the cabinet 6 to be blown And a heat exchanger 26 for exchanging air with the refrigerant.

The cabinet (6) is connected to the air inlet (2), the suction duct 30 for guiding the air in the room to be cooled into the interior of the cabinet (6), by the heat exchanger (20) A discharge duct 40 for guiding the cooled air to be discharged to the room to be cooled is connected to the air discharge port 4.

The cabinet 6 includes a base 8, a plurality of angles 10 perpendicular to the edge of the base 8, and an upper portion of the plurality of angles 10 and the air outlet 4 A top panel 14 having a flange 12 to which the discharge duct 40 is connected, a plurality of upper panels 16 mounted on the plurality of angles 10, and a plurality of angles 10. It is composed of a plurality of lower panels 18 mounted on the lower part.

The indoor unit of the duct-connected air conditioner has a lower portion consisting of a base 2 and a plurality of lower panels 16, and the suction duct 30 can be variously connected according to its installation conditions.

Figure 3 is a schematic perspective view of the indoor unit of the duct-connected air conditioner according to the prior art is installed on the bottom surface, Figure 4 is a schematic side view when the indoor unit of the duct-connected air conditioner according to the prior art is installed on the wall, 5 is a schematic side view when the indoor unit of the duct-connected air conditioner according to the prior art is installed on the ceiling.

As shown in FIG. 3, when the indoor unit 1 is installed upright on the floor, the indoor unit 1 may be detached from the opening of the lower panel 18 after removing one of the plurality of lower panels 18. Suction duct 30 can be connected, and as shown in FIG. 4, when the indoor unit 1 is installed as if hanging on a wall, the suction duct ( 30), and as shown in FIG. 5, when the indoor unit 1 is installed lying on the ceiling side, any one of the plurality of lower panels 18 or the base is detached and then the plurality of The suction duct 30 may be connected to an opening in which one of the lower panels 18 or the base is separated.

In the indoor unit 1 of the duct-connected air conditioner according to the prior art configured as described above, when the blower 20 is operated, indoor air is introduced into the cabinet 6 through the suction duct 30 and the suction port 2. It is sucked, blown in the direction of the air discharge port (4), heat exchanged with the heat exchanger (20) and cooled, discharged through the air discharge port (4) and the discharge duct 40 to cool the room.

On the other hand, when the separate heat transfer heater or gas heater is mounted inside the cabinet 16, the indoor unit 2 can be used not only as a cooler but also as a heater.

However, since the suction duct 30 and the discharge duct 40 are connected to opposite sides of the cabinet 6 in the duct connection type air conditioner according to the related art, the connection work is not easy, and the indoor unit 2 is turned into a heater. When a separate electric heater or a gas heater is mounted on the indoor unit 2 for use, the cost of the electric heater or the gas heater is increased, the power and fuel consumption are increased, and the risk of fire increases.

The present invention has been made to solve the above problems of the prior art, to minimize the air passing through the hot water pipes without heating by the hot water pipes to provide an indoor unit of the duct connection type air conditioner with high heating performance. There is this.

Still another object of the present invention is to simplify and speed up the work of connecting the suction duct and the discharge duct.

The indoor unit of the duct connection type air conditioner according to the present invention for solving the above problems; An upper panel disposed on an upper surface of the cabinet and having an air inlet and an air outlet; A barrier separating the inside of the cabinet into an air intake passage and an air discharge passage; A blowing unit installed at one side of the air discharge passage; It is disposed on the upper side of the blower unit, is formed in a zigzag shape, and provided with a plurality of rows up and down, and is characterized in that it comprises a hot water pipes arranged upside down mutually.

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

6 is a perspective view showing the indoor unit and the outdoor unit of the duct-connected air conditioner according to an embodiment of the present invention.

As shown in Figure 6, the duct-connected air conditioner of the present invention is a hot water inlet pipe 53 and hot water discharge pipe 54 is connected to the hot water pipe 52 embedded in the boiler 51 or the floor (A), The hot water inlet pipe 53 and the hot water discharge pipe 54 are connected to the inside of the indoor unit 56 through the indoor unit 56.

In addition, the indoor unit 56 is connected to the outdoor unit 58 and the refrigerant pipe 59.

The indoor unit 56 includes an indoor heat exchanger (evaporator), and the outdoor unit 58 includes a compressor, an outdoor heat exchanger (condenser), and an expansion mechanism, and the refrigerant pipe 59 includes a refrigerant heat exchanger. The refrigerant is absorbed while passing through the indoor heat exchanger and radiated while passing through the outdoor heat exchanger.

Reference numeral 62 is an intake duct whose one end is connected to the air inlet of the indoor unit 56 to allow the air to be sucked into the indoor unit 56.

In this case, when the suction duct 62 is extended to the room (B) which is desired to cool / heat, the suction duct 62 may suck heat from the room (B) and exchange heat, thereby enabling rapid cooling / heating and the outdoor (C). If it extends to the outside can be heat exchanged after inhaling fresh air to create a more comfortable indoor environment.

In addition, reference numeral 64 is a discharge duct one end is connected to the air discharge port of the indoor unit 56 and the other end is extended to the room (B) for cooling / heating.

In addition, reference numeral 68 is a control unit for controlling the duct connection type air conditioner as described above.

7 is a perspective view showing an indoor unit of an embodiment of the duct-connected air conditioner according to the present invention, Figure 8 is an internal configuration showing the indoor unit of an embodiment of the duct-connected air conditioner according to the present invention.

As shown in FIGS. 7 and 8, the indoor unit 56 is disposed on the cabinet 72 and the upper surface of the cabinet 72, and the top panel 78 having the air inlet 74 and the air outlet 76 formed therein. It is configured to include).

The cabinet 72 includes a base 121, a plurality of angles 122 arranged vertically above the edge of the base 121, and the upper panel 78 mounted on an upper end thereof, and the indoor unit 56. The cabinet main body 125 constituting both side portions and the rear portion of the (), and the front panel 129 constituting the front portion of the cabinet 56.

The cabinet body 125 may be integrally formed by bending a cross-sectional shape into a 'c' shape, or may be divided into a plurality of parts and combined.

The front panel 129 is divided into a plurality of bar to facilitate the service such as the blower 90 and the heat exchanger 100, a front upper panel mounted on the top of the front angle of the plurality of angles 122 ( 129a, a front lower panel 129b mounted below the front angle of the plurality of angles 122, and the suction flow path disposed between the front upper panel 129a and the front lower panel 129b. A first front center panel 129c forming a part of 82 and a second disposed between the front top panel 129a and the front lower panel 129b and forming a part of the discharge flow path 84. It consists of the front center panel 129d.

The upper panel 78 is formed at the right side and the left side of the air inlet 74 and the air outlet 76 are spaced apart.

In addition, the upper panel 78 is formed with an inlet flange 124a so that the suction duct 62 can be connected to the upper circumference of the air inlet 74, and the discharge around the upper circumference of the air outlet 76. The outlet flange 124b is formed so that the duct 64 can be connected.

In this case, the indoor unit 56 is connected to the suction duct 62 and the discharge duct 64 because the air inlet 74 and the air outlet 76 are formed together on the upper panel 78. It is easy.

On the other hand, in the indoor unit 56, a barrier 80 for separating the inside of the cabinet 72 into the air intake passage 82 and the air discharge passage 84 is disposed long.

The barrier 80 has one end fixed at a position between the air inlet 74 and the air outlet 76 of the cabinet 78, and the other end of the barrier 80 is provided with an upper panel (the air inlet 74 and the air outlet 76). The base 121 is spaced apart from the base 121, and a '-' channel is formed in the cabinet 72.

That is, the indoor unit 56 has the air intake passage 82 communicating with the air intake port 74 next to one side of the barrier 80, and the intake passage (side) of the barrier 80 next to the other side of the barrier 80. An air discharge flow path 84 communicating with the lower portion 82 and communicating with the air discharge port 76 is formed.

In addition, the indoor unit 56 is equipped with a blower 90 for generating a blowing force to suck air into the inner flow path of the cabinet 72 and discharge it again, the blower 90 is the cabinet 72 It is attached to the blower support bracket 91 attached to the discharge flow path 84 inside.

The blower 90 includes a fan housing 92 having a suction hole through which air is introduced and a discharge hole through which air is discharged, and fixed to the blower support bracket 91, and mounted on one side of the fan housing 92. And a rotating shaft protruding into the fan housing 92 and controlled by a control unit, and a rotation center is connected to the shaft of the blowing motor 94, and is rotatable inside the fan housing 92. It is composed of a blower fan 96 is positioned.

On the other hand, the indoor unit 56 is the heat exchanger 100 is mounted to the lower side of the blower (90).

The heat exchanger 100 is composed of a fin tube type heat exchanger or a plate type heat exchanger, the refrigerant pipe 59 is connected to cool the ambient air while the low-temperature low-pressure refrigerant flows inside the compressor of the outdoor unit, The heat transfer area of the refrigerant and air is formed in a '∧' shape to be divided into a left heat exchanger 102 and a right heat exchanger 104 based on the upper center.

In addition, the indoor unit 56 is disposed below the left heat exchanger 102 and the right heat exchanger 104 to collect condensed water falling from the left heat exchanger 102 and the right heat exchanger 104, A first drain pan 107 formed with a through hole 106 through which air can pass, and the left side heat exchanger 102 and the right heat exchanger 104, and the indoor unit 56 is laid on its side. When installed, it further comprises a second drain pan 108 for collecting the condensed water falling from the left heat exchanger 102 or the right heat exchanger 104.

Meanwhile, the indoor unit 56 has an air purifying function in addition to the cooling / heating function using the heat exchanger 100 as described above, and has a mesh shape in which dust in the air sucked toward the air inlet 74 is filtered. The air filter 114 and the high performance filter 118 which is controlled by the control part and purifies | cleans dust, an odor, etc. in air are further included.

The high-performance filter 118 is mounted between the lower end of the barrier 80 and one side of the cabinet 72 to purify the air primarily purified by the air filter 114, and to remove dust in the air. A high voltage is applied to the ionizing unit 118a for ionizing the ion, a collecting unit 118b disposed behind the ionizing unit 118a and collecting the ionized dust, and the ionizing unit 118a and the collecting unit 118b. It consists of a high voltage generator.

The ionizing part 118a is spaced apart at regular intervals to form a ground electrode, and is disposed orthogonally to the flow direction of air between the discharge corresponding electrode and a high voltage is applied to form a positive electrode to form the discharge corresponding electrode. It includes a discharge electrode for forming an ionization line between.

The collecting unit 118b includes a collecting electrode to which the dust ionized by the ionizing unit 118a is adsorbed, and an acceleration electrode to accelerate the dust ionized by the ionizing unit 118a to the collecting electrode.

In addition, the indoor unit 56 has a heating function using hot water in addition to the cooling and air purification as described above, and one end is provided at the hot water inlet pipe 53 at a position between the blower 90 and the air discharge port 76. An auxiliary heating device 130 that is in communication with the other end of the hot water discharge pipe 54 is disposed.

The auxiliary heating device 130 is a hot water pipe through which hot water introduced from the hot water inflow pipe 53 passes and discharges hot water to the hot water discharge pipe 54.

The hot water pipe 130 is disposed on the left and right hot water pipe support brackets (131, 132) vertically mounted to the upper edge of the blower support bracket 91 and spaced apart from the blower (90).

In addition, the hot water pipe 130 is preferably arranged in multiple rows up and down.

On the other hand, the indoor unit 56 is the hot water pipe, hot water inlet pipe 53, hot water discharge pipe 54, so that the hot water introduced to the hot water pipe 130 or discharged from the hot water pipe 130 to regulate or regulate. It is preferable that a hot water control valve is mounted on at least one side of the hot water pipe 130.

The hot water control valve may be made of a mechanical valve for opening and closing the internal flow path by the user's operation, or may be made of a solenoid valve for opening and closing the internal flow path under the control of the controller.

9 is a plan view showing a hot water pipe of an embodiment of the duct-connected air conditioner according to the present invention.

The hot water pipe 130 is arranged in a zigzag shape orthogonal to the air discharge direction, and the upper hot water pipe and the lower hot water pipe are alternately arranged up and down.

Reference numeral 140 is an inlet coupling of the hot water inlet pipe 53 is connected to one side and the inlet 133 of the hot water pipe is connected to the other side, and the reference numeral 142 is one side of the hot water discharge pipe 54. It is connected to the outlet side of the hot water pipe 130 is connected to the outlet side 134 is connected to the other side.

The inlet coupling 140 and the outlet coupling 142 is to allow the hot water inlet pipe 53 and the hot water discharge pipe 54 to be easily and quickly connected to the hot water pipe 130, It is mounted on any one of the left and right hot water pipe support brackets (131, 132).

On the other hand, reference numeral 144 is a first through-hole formed in the cabinet 72 so that the hot water inlet pipe 53 can be connected to the inlet coupling 140 through the cabinet 72, and not described Reference numeral 146 denotes a second through hole formed in the cabinet 72 so that the hot water discharge pipe 54 may pass through the cabinet 72 and be connected to the discharge side coupling 142.

Referring to the operation of the present invention configured as described above are as follows.

First, when the indoor unit 56 of the duct-connected air conditioner is cooled and operated, the compressor of the outdoor unit 58 is turned on, and a low temperature low pressure refrigerant flows through the heat exchanger 100 of the indoor unit 56. The air around the heat exchanger 100 of the indoor unit 56 is cooled by heat exchange with the refrigerant.

In addition, the indoor unit 56 of the duct-connected air conditioner operates the blower motor 94 and the high performance filter 118 together with the compressor on operation of the outdoor unit 58.

The blower fan 96 is rotated by the on-operation of the blower motor 94, and a blowing pressure is generated in the cabinet 72 according to the rotation of the blower fan 96. As shown in FIG. 8, air passes through the suction duct 62 and the air suction port 74 in order to be sucked into the cabinet 72.

The air sucked into the air inlet 74 passes through the air filter 114, and foreign matter such as dust is primarily filtered and flows to the lower portion of the cabinet 72 through the suction passage 82.

The air flowed to the lower portion of the cabinet 72 is adsorbed and collected by secondary adsorption of dust or odor while passing through the high performance filter 118, and the flow direction after hitting the base 121 which is the bottom of the cabinet 72 is It is bent in a 'Ｕ' shape and flows to the upper part of the cabinet 72 through the discharge flow path 84 of the cabinet 72.

Air flowing to the upper portion of the cabinet 72 is cooled by heat exchange with a refrigerant while passing through the heat exchanger 100, and passes through the inside of the fan housing 92, and then between the hot water pipes 130. After that, the air discharge port 76 and the discharge duct 64 are discharged again to the room B to cool the room.

On the other hand, when the indoor unit 56 of the duct connection air conditioner is heated and operated, the compressor of the outdoor unit 58 is turned off so that no refrigerant flows in the heat exchanger 100, and the hot water control valve is operated by a user. The interior is opened by or the interior is opened by the control unit 68.

8 and 9, the hot water introduced from the hot water inlet pipe 53 flows through the inlet coupling 140 and the inlet 133 to the hot water pipe 130. The heated water flows through the hot water pipe 130 to heat the air around the hot water pipe 130, and then through the outlet 134, the discharge side coupling 142, and the hot water discharge pipe 54. Discharged.

The discharged hot water is circulated to the boiler 51 through the hot water pipe 52 embedded in the bottom (A) or circulated directly to the boiler 51 is heated inside the boiler 51, Inflow / outlet to the hot water pipe 130 as described above is repeated.

On the other hand, while the circulation of the hot water as described above is performed, the blowing motor 94 and the high performance filter 118 is turned on.

The blower fan 96 is rotated by the on-operation of the blower motor 94, and the air is sucked into the suction duct 62, the air suction port 74, the air filter 114, and the suction flow path as in the cooling operation. 82), and after passing the high performance filter 118 in turn, flows to the upper portion of the cabinet 72 along the discharge flow path 84.

The air flowing to the upper portion of the cabinet 72 passes through the heat exchanger 100 with no heat exchange with the heat exchanger 100, passes through the fan housing 92, and then the hot water pipe. 130 is heated by heat exchange with hot water while passing around, and is discharged through the air discharge port 76 and the discharge duct 64 to heat the room (B).

On the other hand, the present invention is not limited to the above embodiment, when the duct-connected air conditioner is a heat pump type air conditioner, it is also possible that the heating by the heat exchanger together with the heating by the hot water pipe during the heating operation is of course possible. to be.

An indoor unit of the duct-connected air conditioner according to the present invention configured as described above is provided with an air inlet and an air outlet in an upper panel disposed on an upper side of the cabinet, and separated into an air inlet and an air outlet. A barrier is mounted, and a blowing unit installed on one side of the air discharge passage is mounted, and an auxiliary heating device is mounted on the upper side of the blowing unit, so that connection between the suction duct and the discharge duct is easy, and the auxiliary heating device is used as a heater. There is an advantage that can be used.

In addition, the auxiliary heating device is made of hot water pipes through which hot water passes, and is inexpensive and safer than heating the room by using an electric heater or a gas heater.

In addition, the hot water pipe is arranged in a zigzag shape and provided with a plurality of rows up and down, and the upper hot water pipe and the lower hot water pipe are alternately arranged to minimize the air passing between the hot water pipes without being heated by the hot water pipes. Therefore, there is an advantage that the heating performance is high.

1 is a perspective view showing an indoor unit of a duct connection type air conditioner according to the prior art,

2 is an internal configuration diagram showing the internal structure of the indoor unit of the duct-connected air conditioner according to the prior art,

3 is a schematic perspective view of the indoor unit of the duct-connected air conditioner according to the prior art installed on the bottom surface,

Figure 4 is a schematic side view when the indoor unit of the duct-connected air conditioner according to the prior art is installed on the wall,

5 is a schematic side view of the indoor unit of the duct-connected air conditioner according to the prior art installed on the ceiling,

6 is a perspective view showing an indoor unit and an outdoor unit of an embodiment of a duct connection type air conditioner according to the present invention;

7 is a perspective view showing an indoor unit of an embodiment of the duct connection type air conditioner according to the present invention;

8 is an internal configuration showing the indoor unit of the duct-connected air conditioner according to an embodiment of the present invention;

9 is a plan view showing a hot water pipe of an embodiment of the duct-connected air conditioner according to the present invention.

<Explanation of symbols on main parts of the drawings>

51: boiler 52: hot water pipe

53: hot water inlet pipe 54: hot water discharge pipe

56: indoor unit 58: outdoor unit

59: refrigerant piping 62: suction duct

64: discharge duct 68: control unit

72: cabinet 74: air intake

76: air outlet 78: top panel

80: barrier 82: suction flow path

84: discharge flow path 90: blower

92: fan housing 94: blowing motor

96: blower fan 100: heat exchanger

102: left heat exchanger 104: right heat exchanger

106: first drain pan 107: second drain pan

108: third drain pan 114: air filter

118: high performance filter 130: hot water piping

131, 132: hot water pipe support bracket 133: inlet

134: outlet 140: inlet coupling

142: outlet side coupling 144: first through hole

146: second through hole A: bottom

B: Indoor for cooling / heating C: Outdoor

Claims (3)

Cabinets; An upper panel disposed on an upper surface of the cabinet and having an air inlet and an air outlet; A barrier separating the inside of the cabinet into an air intake passage and an air discharge passage; A blowing unit installed at one side of the air discharge passage; The indoor unit of the duct-connected air conditioner is disposed on the upper side of the blower unit, is formed in a zigzag shape, and provided with a plurality of rows up and down and alternately arranged up and down. The method of claim 1, The cabinet may include a base, a plurality of angles disposed vertically above the edge of the base and mounted on an upper surface thereof, a cabinet body constituting both side portions and a rear portion of the cabinet, and a front portion of the cabinet. An indoor unit of a duct-connected air conditioner, comprising a front panel. The method of claim 1, The barrier is a duct-connected air conditioner, the upper end is fixed to a position between the air inlet and the air outlet so that a 'Ｕ'-shaped flow path is formed inside the cabinet, the lower end is spaced apart from the opposite side of the upper panel Indoor unit.