KR100512680B1 - Multi - function air conditioner - Google Patents

Abstract

The present invention relates to an air conditioner, and more particularly, to enable an air conditioner to be used for refrigeration and storage of air and food.

The air conditioner according to the present invention may be detachably mounted with one of a main body having a suction port and a discharge port, a built-in heat exchanger and a blower, and a refrigerating unit having an air cleaning unit and a storage compartment for purifying indoor air. And an additional unit mounting portion provided in the main body, and a power supply connection portion provided in the additional unit mounting portion to supply power from the main body to the air cleaning unit and the refrigeration unit.

Description

Multifunctional Air Conditioner {MULTI-FUNCTION AIR CONDITIONER}

The present invention relates to an air conditioner, and more particularly, to an air conditioner that can be used by selectively removing the air cleaning unit and the refrigeration unit.

In general, an air conditioner is provided with a heat exchanger built into the main body for heat exchange of indoor air, and a blowing means built into the main body to circulate through the heat exchanger inside the main body. Used as

However, since these air conditioners are mainly used for cooling the indoor space, they are often left unused during the cool weather such as spring or autumn, and thus have a disadvantage of low use efficiency.

Recently, in order to reduce this drawback, a multifunctional air conditioner has been developed to add air cleaning to the air conditioner to perform cooling and air purification of the indoor space. However, such air conditioner performs an air cleaning function. Since the parts are integrated with the air conditioner main body, there is a problem that the air cleaning space is limited to the space in which the air conditioner is installed. In other words, the air conditioner can perform the air cleaning function, but the mobility is inferior to the separate small air cleaning device, so the space for performing the air cleaning is limited to the space where the air conditioner is installed. .

The present invention has been made in view of the above problems, and an object of the present invention is to provide an air conditioner that can be used for a wider range of applications and to increase the use efficiency.

An air conditioner according to the present invention for achieving this object includes a main body including an air conditioning unit; It comprises an additional unit that can be detachably mounted to the main body, characterized in that the air conditioning unit and the additional unit is operatively coupled.

In addition, the present invention is characterized in that when the additional unit is mounted to the main body, the flow path of the air conditioning unit and the flow path of the additional unit is in communication with each other.

In addition, the additional unit is an air cleaning unit, the discharge port of the air cleaning unit and the inlet of the air conditioning unit is configured to communicate with each other, the air passing through the air cleaning unit is characterized in that the air conditioning unit is introduced into the air conditioning unit. .

In addition, the additional unit is a refrigeration unit having a storage compartment, wherein the air conditioner is characterized in that the air circulation passage for air conditioning the room and the air circulation passage for refrigerating the refrigeration unit is formed separately.

In addition, the air conditioning unit has an inlet and an outlet for indoor use, an inlet and an outlet for the refrigerating unit are separately formed, and the refrigerating unit has an inlet for receiving cold air from the air conditioning unit, and an outlet for discharging cold air circulated through the storage compartment. And communicating with the outlet of the refrigeration unit of the air conditioning unit and the suction port of the refrigerating unit, and communicating with the outlet of the refrigerating unit and the inlet of the refrigerating unit of the air conditioning unit.

In another aspect, the present invention is characterized in that the air conditioning unit is disposed on the upper portion of the main body, the lower unit is provided with an additional unit mounting portion of the type recessed from the front of the main body.

In addition, the additional unit mounting portion is characterized in that the power supply is connected to the power connection of the additional unit is provided.

In addition, the additional unit is characterized in that it comprises a separate external power connection.

In addition, the additional unit is a refrigeration unit having a storage compartment, an additional unit mounting portion for mounting the refrigeration unit is provided in the lower portion of the main body, the auxiliary unit heat exchanger in communication with the heat exchanger of the air conditioning unit is embedded The cooling unit is characterized in that for cooling.

In another aspect, the present invention is characterized in that the refrigerant flow path switching valve for circulating the refrigerant in the heat exchanger and the subsidiary heat exchanger or to selectively circulate the refrigerant in any one of the two.

The refrigerant flow path switching valve may include a first switching valve for opening and closing an inlet pipe of the heat exchanger, a second switching valve for opening and closing an outlet pipe of the heat exchanger, a third switching valve for opening and closing an inlet pipe of the auxiliary heat exchanger; It characterized in that it comprises a fourth switching valve for opening and closing the outlet pipe of the auxiliary heat exchanger.

In addition, the rear surface of the refrigerating unit is made of a thin panel with good thermal conductivity, the circumferential portion is characterized by consisting of a heat insulating member.

Hereinafter, with reference to the accompanying drawings a preferred embodiment according to the present invention will be described in detail.

1 and 2, the air conditioner according to the present invention is provided with an air conditioner unit having a heat exchange chamber 20 in which a heat exchanger 15 and a blower device 16 are built in the upper part, and in the lower part. The main body 10 is provided with an additional unit mounting portion 21 for selectively mounting any one of the additional units such as the air cleaning unit 30 for the purification of indoor air and the refrigeration unit 50 for the storage of food. do.

 The heat exchange chamber 20 in the upper part of the main body 10 is made of a front case 11 and a rear case 12 which can be separated and combined with each other, and inside the heat exchange chamber 20 in the front of the front case 11. Intake ports 13 for inhalation are formed, and discharge ports 14 are formed on both side surfaces of the front case 11 in the vertical direction. In addition, a heat exchanger 15 is installed inside the heat exchange chamber 20 for heat exchange of air sucked toward the inlet 13. At this time, the heat exchanger 15 is formed to extend vertically to substantially correspond to the vertical length of the inlet 13, the cross-sectional shape is bent into a 'V' shape so that the center portion is recessed to the rear and both sides are directed forward. This is to allow the air flowing into the heat exchange chamber 20 from the front suction port 13 to be easily discharged toward the discharge port 14 on both sides through the heat exchanger 15.

The blower 16 inside the heat exchange chamber 20 includes a first crossflow fan 17a and a second crossflow fan 18a, which are provided at both rear sides of the heat exchanger 15, and the two crossflow fans 17a and 18a, respectively. It consists of two motors 17b and 18b for driving. At this time, the two crossflow fans 17a and 18a are disposed vertically long on both rear sides of the heat exchanger 15, and the two motors 17b and 18b are provided below the two crossflow fans 17a and 18a.

As shown in FIG. 2, a rotational discharge blade 19 for controlling the direction of air discharged while rotating a predetermined section is provided in the discharge ports 14 on both sides of the heat exchange chamber 20. The discharge blade 19 is provided in a size substantially corresponding to the length and width of the discharge port 14 so that the discharge port 14 can be closed when the air conditioner is stopped, the main body 10 on one side of the discharge port 14 It is rotatably coupled to and configured to rotate in a forward or reverse direction by the operation of a motor (not shown) so that the discharged air is distributedly supplied to the indoor space. In addition, an air guide plate 14a extending toward the outer surface of the two cross flow fans 17a and 18a so as to blow air toward the discharge port 14 when the two cross flow fans 17a and 18a are operated at the discharge ports 14 on both sides. ) Is provided.

These configurations allow the cold air to flow through the heat exchanger 15 while the indoor air sucked into the heat exchange chamber 20 through the inlet 13 in front of the body 10 when the two cross flow fans 17a and 18a on both sides operate. After that, it is to be supplied to the indoor space again through the discharge port 14 on both sides to perform the cooling of the indoor space.

The additional unit mounting portion 21 under the main body 10 is provided in a shape recessed from the front surface of the main body 10 to accommodate the air cleaning unit 30 and the refrigerating unit 50. At this time, the lower portion of the main body 10 is made of a thickness and a width sufficient to sufficiently support the upper portion of the main body 10, and the vertical support portion 22 and the vertical support portion (integrated with the upper rear case 12) It is composed of a lower support portion 23 that allows the main body 10 to be supported in an upright state by bending the front from the lower end of 22).

As shown in FIGS. 3 and 4, the air cleaning unit 30 installed in the attachment unit mounting portion 21 of the main body 10 has a front surface of the upper portion of the main body 10 when its outer surface is mounted on the main body 10. And a clean unit case 31 formed to have the same plane as both side surfaces, and installed in the clean unit case 31, and include a plurality of air purification filters 32 and a blower 33 for cleaning. . In addition, both sides of the clean unit case 30 is formed with a cleaning suction port 34 so that the indoor air can be sucked into the interior, the cleaning discharge port 35 is formed at the top to discharge the purified air.

The air purifying filter 32 installed inside the clean unit case 31 has an antibacterial prefilter 32a, an electrostatic precipitating electrostatic filter 32b, a fine dust collecting filter 32c, and a deodorizing filter to collect and deodorize various foreign substances. 32d and the like are configured to be stacked in the front-rear direction. In addition, the cleaning blower 33 includes a cross flow fan 33a which is installed in a horizontal direction in the upper inner space of the clean unit case 31 adjacent to the discharge port 35 and a motor for driving the cross flow fan 33a. It consists of 33b.

In addition, the rear separation space 36 is formed at the rear of the air purification filter 32 inside the clean unit case 31 so that flow paths associated with the cleaning suction ports 34 on both sides are formed, and the air purification filter 32 is formed. In the front, the front space 37 is formed so that the flow path associated with the upper blower 33 and the discharge port 35 can be formed. This configuration is purified after the indoor air flowing into the rear separation space 36 through the cleaning suction port 34 on both sides when the cleaning blower 33 is operating while passing through a plurality of air purification filter 32 It is to be discharged toward the cleaning discharge port 35 of the upper portion.

1 and 5, the lower part of the heat exchange chamber 20 of the main body 10 is used for cleaning the upper part of the air cleaning unit 30 when the air cleaning unit 30 is mounted on the main body 10. A suction connection passage 24 is formed so that the discharge hole 35 can be connected to the suction side of the heat exchange chamber 20. This is because when the air cleaning unit 30 operates in a state in which the main body 10 is mounted, the purified air discharged through the discharge port 35 of the air cleaning unit 30 passes through the heat exchange chamber 20 of the main body 10. The interior space is to be discharged through the discharge port 14 of the main body side.

In addition, the power supply is supplied from the main body 10 to the air cleaning unit 30 when the air cleaning unit 30 is mounted on the main body 10 at the upper portion of the additional unit mounting unit 21 and the air cleaning unit 30. In order to drive the cleaning blower 33, the power connection parts 26 and 38 which are mutually connected are provided, respectively. In addition, the rear portion of the air cleaning unit 30, as shown in Figure 4, after separating the air cleaning unit 30 from the main body 10, the power supply of the upper portion to be used for the purpose of air cleaning in other indoor space ( Separately from 38), an external power supply connector 39 to which an external power line 40 can be connected is provided.

The refrigeration unit 50, which may be mounted on the additional unit mounting portion 21 of the main body 10 instead of the air cleaning unit 30, may be attached to or detached from the additional unit mounting portion 21, as shown in FIGS. 1 and 7. And a refrigerating unit case 52 having a storage compartment 51 having a front surface open therein, and rotatable to one side of the refrigerating unit case 52 to open and close the opened front surface of the refrigerating unit case 52. It has a combined door 53. In this case, the refrigeration unit case 52 and the door 53 are made of a heat insulating wall so that the storage compartment 51 can be insulated from the outside, and the shelf 54 for storing food or beverage bottles is provided inside the storage compartment 51. do.

In addition, the refrigeration unit case 52 has a cold air supply passage 55 extending from both sides of the upper end to the lower side so that the discharge side cold air of the main body 10 can be introduced into the storage compartment 51 to communicate with the interior of the storage compartment 51. The discharge connection flow passage 25 is formed on both sides of the lower portion of the heat exchange chamber 20 of the main body 10 so that the cold air supply passage 55 and the discharge side of the main body 10 can communicate with each other. In addition, in the upper center of the refrigeration unit case 52, the cold air return passage communicating with the suction connection flow passage 24 in the lower center of the heat exchange chamber 20 so that the air inside the storage compartment 51 can be discharged to the suction side of the main body 10 ( 56) is formed.

The configuration of the refrigerating unit 50 is that the air inside the storage compartment 51 of the refrigerating unit 50 when the air blower 16 inside the main body heat exchange chamber 20 operates, the cold air return passage 56 and the suction-associated passage. The suction side of the heat exchange chamber 20 through the heat exchange chamber 20 may be sucked through the heat exchange chamber 20, and the cold air on the discharge side of the heat exchange chamber 20 passing through the heat exchanger 15 may be connected to the discharge passage 25 and the cold air supply passage 55. By supplying the inside of the storage compartment 51 through, the cooling of the storage compartment 51 is enabled. At this time, the cold air circulation of the refrigerating unit 50 is that the cool air on the discharge side of the heat exchange chamber 20 as much as the air in the storage compartment 51 is sucked to the suction side of the heat exchange chamber 20 by the operation of the blower 16. ) It is made smoothly because it is sucked into the inside.

In addition, in the upper portion of the refrigerating unit 50, like the above-described air cleaning unit 30, when the refrigerating unit 50 is mounted to the main body 10 so that power can be supplied from the main body 10 toward the refrigerating unit 50. A power supply connecting portion 57 that is connected in correspondence with the power supply connecting portion 26 of the additional unit mounting portion 21 is provided. This is for supplying power to a lamp (not shown) installed in the storage compartment 51 or a display unit provided in the front part of the door 53.

The following describes an example of the use of such an air conditioner.

As shown in FIG. 5, when cooling the indoor space in the state in which the air cleaning unit 30 is mounted on the additional unit mounting unit 21, the main body is operated by the blower 16 inside the heat exchange chamber 20. (10) The indoor air sucked into the inlet 13 on the front side is cooled through the heat exchanger 15, and then supplied to the indoor space through the discharge port 14, thereby cooling the indoor space. At the same time, in the air cleaning unit 30, the indoor air sucked into the cleaning suction port 34 by the operation of the cleaning blower 33 is purified through the air purification filter 32, and then the heat exchange chamber 20 in the upper portion. Discharged to the suction side. Therefore, at this time, the purified air is cooled through the heat exchanger 15 of the heat exchange chamber 20 and then supplied to the room through the discharge port 14 on the side of the main body 10, thereby cooling the indoor space and simultaneously purifying the air. You can do it. In this case, since the blower 33 for cleaning in the air cleaning unit 30 and the blower 16 in the heat exchange chamber 20 operate together, the air purifying operation and the cooling operation in the room are performed simultaneously while providing sufficient blowing ability. It can be exerted so that smooth circulation of indoor air is possible.

When stopping the operation of the air cleaning unit 30 according to the user's selection in the state in which the air cleaning unit 30 is mounted on the main body 10, only the cooling operation of the indoor space can be performed. In addition, when only the air cleaning unit 30 is operated while stopping the cooling operation, only the air cleaning operation of the indoor space can be performed. At this time, the blower 16 inside the heat exchange chamber 20 does not operate and the refrigerant is not circulated into the heat exchanger 15. Therefore, at this time, the purge air discharged to the suction side of the heat exchange chamber 20 through the upper discharge port 35 of the air cleaning unit 30 is discharged to the front of the indoor space through the suction port 13 in front of the main body 10 or the discharge port of the side surface. It is discharged to the interior space through (14).

In addition, as shown in FIG. 6, when only the cooling operation is performed while the air cleaning unit 30 is separated from the main body 10, the indoor air is intake 13 and the heat exchange chamber 20 on the front of the main body 10. Inhaled through the suction connection flow passage 24 at the bottom, the air sucked into the heat exchange chamber 20 is cooled through the heat exchanger 15 and then discharged to the interior space through the discharge port (14). In addition, at this time, since there is nothing in the additional unit mounting portion 21, it is possible to put a decoration such as a flower pot on the upper portion of the lower support 23.

As shown in FIG. 4, the air cleaning unit 30 separated from the main body 10 may be moved by a user to a separate space and used for the purpose of air cleaning. In this case, a separate power line 40 is connected to the external power connection 39 at the rear of the air cleaning unit 30 so that power can be supplied to the clean blower 33 inside.

In addition, the present invention, as shown in Figure 7, after separating the air cleaning unit 30 from the main body 10 can be used by mounting the refrigeration unit 50 instead. At this time, the flow paths of the refrigerating unit 50 mounted on the main body 10 are connected to the discharge connection flow path 25 in which the cold air supply passages 55 on both sides communicate with the discharge side of the main body 10, and return the cold air in the upper center. The flow path 56 is connected to the suction connection flow path 24 under the heat exchange chamber 20 communicating with the suction side of the main body 10.

As such, when the air conditioner is operated while the refrigerating unit 50 is mounted, cooling operation of the indoor space is performed and cooling air is supplied to the storage compartment 51 of the refrigerating unit 50 while cooling the storage compartment 51. At this time, the internal air of the storage compartment 51 of the refrigerating unit 50 is sucked to the suction side of the heat exchange chamber 20 through the cold air return passage 55 and the suction connection passage 25, and thus the pressure of the storage compartment 51 is lowered. The discharge side cold air of the main body 10 is sucked into the storage chamber 51 through the discharge connection flow path 25 and the cold air supply flow path 55 of the cooling unit 50. Through this operation, the cold air is continuously supplied to the storage chamber 51 while the air conditioner is operated. Therefore, the user can store food or beverage bottles in the storage compartment 51 of the cooling unit 50 and store them in a cold state.

8 and 9 illustrate another embodiment of an air conditioner refrigeration unit and a method of supplying cold air to the refrigeration unit according to the present invention. Unlike the embodiment described above, the cold air generated from the upper heat exchanger 15 is not supplied to the storage compartment 61 inside the refrigerating unit 60, but is embedded in the additional unit mounting part 21 of the main body 10. The cold chill from the auxiliary heat exchanger (70) is transferred directly to the rear portion of the refrigeration unit (60) to allow cooling in the refrigerating unit (60).

To this end, the rear side 62a of the refrigerating unit case 62 is made of a thin panel having good thermal conductivity so that the cold air transmitted from the subsidiary heat exchanger 70 is easily transferred to the storage compartment 61, and the refrigerating unit case 62 of The circumferential portion 62b and the door 63 are made of a heat insulation wall capable of heat insulation. At this time, the thin panel of the back (62a) is preferably made of a metal plate with good thermal conductivity.

The auxiliary heat exchanger 70 embedded in the attachment unit mounting portion 21 of the main body 10 has a form in which a refrigerant pipe is embedded inside the front side of the attachment unit mounting portion 21. As shown in FIG. 9, the auxiliary heat exchanger 70 is configured to supply the refrigerant through the refrigerant pipe together with the heat exchanger 15 inside the heat exchange chamber 20 of the main body 10. That is, the inlet pipe 73 and the outlet pipe 74 of the auxiliary heat exchanger 70 are connected to the inlet pipe 71 and the outlet pipe 72 of the heat exchanger 15 installed inside the heat exchange chamber 20, respectively. The refrigerant supplied from the outdoor unit (not shown) of the air conditioner is configured to circulate toward the auxiliary heat exchanger 70.

Further, as shown in FIG. 8, a refrigerant flow path switching unit 80 having an opening and closing cover 85 is provided on the side of the additional unit mounting portion 21 of the main body 10, and in the refrigerant flow path switching unit 80. Is provided with a plurality of refrigerant flow path switching valves 81, 82, 83, 84 to circulate the refrigerant in both the heat exchanger 15 and the auxiliary heat exchanger 70, or to selectively circulate the refrigerant in any one of them. . As shown in FIG. 9, these refrigerant flow path switching valves open and close the first switching valve 81 for opening and closing the inlet pipe 71 of the heat exchanger 15 and the outlet pipe 72 for the heat exchanger 15. Fourth switching valve 82 for opening and closing the second switching valve 82, the inlet pipe 73 of the auxiliary heat exchanger (70), the outlet pipe 74 of the auxiliary heat exchanger (70) (84).

This configuration opens the first switching valve 81 and the second switching valve 82 and closes the third switching valve 83 and the fourth switching valve 84 when the user wants to perform only the cooling operation of the indoor space. By doing so, the circulation of the refrigerant is made only toward the heat exchanger 15 and the refrigerant supply to the auxiliary heat exchanger 70 can be stopped. In addition, when the user wants to use only the refrigerating unit 60 while stopping the cooling operation of the indoor space, the first switching valve 81 and the second switching valve 82 are closed and the third switching valve 83 and the fourth switching are made. Opening of the valve 84 allows the refrigerant to be supplied only to the auxiliary heat exchanger 70. When the user wants to use the refrigerating unit while cooling the indoor space, all of the switching valves 81, 82, 83, and 84 open the refrigerant to both the heat exchanger 15 and the auxiliary heat exchanger 70. It is to enable circulation.

On the other hand, the above-described embodiment is a method of cooling the cooling unit 60 by installing the auxiliary heat exchanger 70 in the main body 10, so when the cooling unit 60 is separated from the main body, the cooling unit ( 60) If a cooling device such as a conventional Peltier device (not shown) is further provided on its own, the cooling unit 60 can be used independently even when the cooling unit 60 is separated from the main body 10.

As described in detail above, the air conditioner according to the present invention can be used by separately mounting or separate the air cleaning unit, it can be used by mounting a refrigeration unit using the cooling function of the air conditioner instead of the air cleaning unit. Therefore, the air conditioner can be used for more various purposes, and the use efficiency can be improved.

1 is a perspective view showing the configuration of an air conditioner according to the present invention.

Figure 2 is a cross-sectional view showing the internal configuration of the heat exchange chamber of the air conditioner according to the present invention.

3 is a perspective view showing the configuration of an air conditioner air cleaning unit according to the present invention.

Figure 4 is a longitudinal sectional view showing the configuration of an air conditioner air cleaning unit according to the present invention.

5 is a perspective view showing an example of the use of the air cleaning unit is mounted on the air conditioner according to the present invention.

6 is a perspective view showing an example of the use of the state that the additional unit is not mounted to the additional unit mounting portion of the air conditioner according to the present invention.

7 is a perspective view illustrating a coupling relationship between a cooling unit and a main body of an air conditioner according to the present invention.

8 is a perspective view showing another embodiment of the air conditioner cooling unit and the main body according to the present invention.

9 is a refrigerant piping configuration showing the connection relationship between the refrigerant pipe and the refrigerant flow path switching valve of the heat exchanger and the auxiliary heat exchanger of the air conditioner according to the present invention.

Explanation of symbols on the main parts of the drawings

10: body, 13: inlet,

14: discharge port, 15: heat exchanger,

16: blower, 20: heat exchange chamber,

21: additional unit mounting portion, 24: suction connection flow path,

25: discharge connection flow path, 26, 38, 57: power supply connection,

30: air cleaning unit, 32: air purification filter,

33: cleaning blower, 34: cleaning inlet,

35: discharge port for cleaning, 39: external power connection,

40: power cord, 50,60: refrigeration unit,

51,61: storage compartment, 52,62: refrigeration unit case,

53, 63: door, 55: cold air supply flow path,

56: cold return flow path, 70: auxiliary heat exchanger,

81: first switching valve, 82: second switching valve,

83: third switching valve, 84: fourth switching valve.

Claims (12)

In air conditioners, A main body including an air conditioning unit; The lower part of the main body recessed from the front of the main body is an additional unit mounting portion that can be selectively detachably mounted any one of the additional unit, such as the air cleaning unit for the purification of indoor air, and the refrigeration unit for the storage of food In the form of one; Multifunctional air conditioner, characterized in that the air conditioning unit and the additional unit is operatively coupled. The method of claim 1, And the flow path of the air conditioning unit and the flow path of the additional unit communicate with each other when the additional unit is mounted to the main body. The method of claim 2, The additional unit is an air cleaning unit, And a discharge port of the air cleaning unit and an intake port of the air conditioning unit are in communication with each other, and the air passing through the air cleaning unit is introduced into the air conditioning unit. The method of claim 2, The additional unit is a refrigeration unit having a storage compartment, The air conditioner is a multi-function air conditioner, characterized in that the air circulation passage for air conditioning the room and the air circulation passage for refrigerating the refrigeration unit is formed separately. The method of claim 4, wherein The air conditioning unit has an inlet and an outlet for indoor use, and an inlet and an outlet for the refrigeration unit. The refrigerating unit has a suction port for receiving cold air from the air conditioning unit and a discharge port for discharging cold air circulated through the storage chamber, And a discharge port for the refrigerating unit of the air conditioning unit and a suction port of the refrigerating unit, and in communication with the discharge port of the refrigerating unit and the inlet for the refrigerating unit of the air conditioning unit. delete The method of claim 1, And a power supply connecting portion connected to the power supply connecting portion of the additional unit. The method of claim 1, The additional unit is a multi-function air conditioner, characterized in that it comprises a separate external power connection. The method of claim 1, The additional unit is a refrigeration unit having a storage compartment, An additional unit mounting part for mounting the refrigeration unit is provided below the main body, The auxiliary unit mounting unit is embedded in the secondary heat exchanger communicating with the heat exchanger of the air conditioning unit is a multifunctional air conditioner, characterized in that for cooling the refrigeration unit. The method of claim 9, And a refrigerant flow path switching valve configured to circulate all of the refrigerant in the heat exchanger and the subsidiary heat exchanger or to selectively circulate the refrigerant in any one of the heat exchanger and the auxiliary heat exchanger. The method of claim 10, The refrigerant flow path switching valve may include a first switching valve for opening and closing an inlet pipe of the heat exchanger, a second switching valve for opening and closing an outlet pipe of the heat exchanger, a third switching valve for opening and closing an inlet pipe of the auxiliary heat exchanger, and And a fourth switching valve for opening and closing an outlet pipe of the auxiliary heat exchanger. The method of claim 9, The rear surface of the refrigerating unit is made of a thin panel with good thermal conductivity, the circumferential portion of the multifunctional air conditioner, characterized in that made of a heat insulating member.