KR100436141B1 - Indoor unit of an air conditioning system - Google Patents

Abstract

The present invention relates to an indoor unit of an air conditioner, and an object thereof is to improve a structure for collecting condensate generated in a refrigerant pipe extending out of a heat exchange fin of an evaporator, thereby reducing the number of parts and a manufacturing cost.

To this end, according to the indoor unit of the air conditioner according to the present invention, an auxiliary drip tray for collecting condensed water generated in the refrigerant pipe 22 extending out of the heat exchange fin 21 of the evaporator 20 and guiding it to the drip tray 30 side ( 60 is integrally molded with the inner surface of the rear panel 12 of the housing 10. Accordingly, the condensed water generated from the refrigerant pipe 22 leaving the heat exchange fin 21 of the evaporator 20 falls to the drip tray 30 through the auxiliary drip tray 60 and is completely discharged to the outside of the housing 10, thereby condensed water is discharged. Falling into the room and the resulting electrical damage are prevented. In addition, since the auxiliary drip tray 60 is integrally molded to the rear panel 12 of the housing 10, the number of parts is reduced, thereby improving the workability of assembling the air conditioner and reducing the manufacturing cost. .

Description

Indoor unit of an air conditioning system

The present invention relates to an indoor unit of a separate air conditioner, and more particularly, to an indoor unit of an air conditioner having a drip tray for collecting condensate generated from an evaporator and discharging it to the outside.

In general, a separate air conditioner is used to harmonize air using a refrigeration cycle, and is divided into an outdoor unit installed outdoors and an indoor unit installed indoors. The outdoor unit is provided with a compressor, a condenser, and a fan constituting the refrigeration cycle, and performs the function of condensing the condenser through outdoor air during the cooling operation. On the other hand, the indoor unit is installed with an evaporator and a fan of a refrigerating cycle, and during the cooling operation, the indoor air is heat-exchanged while passing through the evaporator, and is continuously discharged back into the room to perform cooling.

The indoor unit of such a conventional air conditioner is provided with a housing forming an exterior, an evaporator, a drip tray and a fan embedded in the housing.

The housing consists of a front panel formed with an inlet and a discharge port for air distribution, and a rear panel which is coupled with the front panel and forms a space therebetween for refrigerating cycle components and electrical equipment therebetween. The evaporator is disposed adjacent to the inlet and heat exchanged with the sucked air, and the fan is disposed between the evaporator and the outlet for discharging the heat-exchanged air to the indoor side. In order to drive the fan, a fan motor is mounted on one inner side of the housing.

In addition, the drip tray is for collecting the condensed water generated in the evaporator to be discharged to the outside, the bottom of the evaporator is accommodated seated comfortably and coupled to the flexible drain hose.

When power is applied to the indoor unit of the conventional air conditioner configured as described above, when the fan rotates, the indoor air is sucked through the intake port, heat exchanged through the evaporator, and then discharged again through the discharge port, whereby the indoor air is harmonized. In addition, the suction of indoor humid air generates condensate in the evaporator, which is collected in the drip tray and is subsequently discharged out of the housing through the drain hose.

However, in the indoor unit of the conventional air conditioner, condensed water is generated in the refrigerant pipe that is outside the heat exchange fin of the evaporator. The condensed water formed in the refrigerant pipe falls to the control box in which the fan motor or circuit board, which rotates the fan, falls. There is a problem.

In order to solve this problem, the present applicant is condensed water receiving structure of the indoor unit of the separate air conditioner for guiding the condensed water generated in the refrigerant pipe leaving the heat exchange fin of the evaporator to the water receiving side (application number; 20-1998-22529, publication number; (2000-10307) has been filed.

The condensate receiver structure of the indoor unit of the separate air conditioner disclosed in Publication No. 2000-10307 has a condensate receiver 2 disposed on the lower part of the evaporator 1 as shown in the claims and FIG. 1. The inlet refrigerant pipe 3a and the outlet refrigerant pipe 3b connected to the refrigerant pipe 1b extend outward from the inside of the heat insulator 5 provided on the rear side of the case 4 to the indoor unit of the separate air conditioner. In the lower part of the upper end of the heat insulator 5, the condensate generated in the inlet coolant pipe 3a and the outlet coolant pipe 3b exposed to the upper part of the heat insulator 5 is guided to the condensate receiver 2 to flow. It is characterized in that the member 6 is coupled.

As shown in FIGS. 1 and 2, the guide member 6 is formed on a plate portion 6a disposed under the upper end of the heat insulator 5, and is formed above the plate portion 6a and is formed of the evaporator 1. The rib 6b in which the groove | channel 6c opened so that the refrigerant pipe 1b outside the heat exchange fin 1a may be caught and fixed is provided.

Therefore, the refrigerant pipes 1b outside the heat exchange fins 1a of the evaporator 1 and the refrigerant pipe connecting portions connecting the inlet refrigerant pipes 3a and the outlet refrigerant pipes 3b exposed to the upper portion of the heat insulator 5 are generated. The condensate flows down through the plate portion 6a and the motor cover 7 of the guide member 6 and collects in the condensate receiver 2, and then continues to the outside.

However, in the condensate receiving structure of the indoor unit of the conventional split air conditioner, a guide member 6 for treating condensate generated in the refrigerant pipe 1b, which is out of the heat exchange fin 1a of the evaporator 1, is separately manufactured and manufactured in the production line. Since it must assemble, it becomes a cause of a fall of productivity and a manufacturing cost. In addition, if the guide member 6 is not assembled correctly, there is a disadvantage that the condensate generated in the refrigerant pipe (1b) falls into the room.

The present invention is to solve this problem, the object of the present invention is to configure the condensate water generated in the coolant pipe leaving the heat exchange fin of the evaporator falling out of the evaporator without being added to the drip tray side, thereby improving the assembly workability It is to provide an indoor unit of the air conditioner that can reduce the manufacturing cost.

Figure 1 shows the indoor unit condensate treatment structure of a conventional air conditioner.

Figure 2 shows an extract of the conventional condensate guide member.

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

Figure 4 is a perspective view of the auxiliary drip tray according to the present invention.

* Description of the symbols for the main parts of the drawings *

10. Housing 12. Rear panel

20. Evaporator 21. Heat exchange pin

22. Refrigerant line 23. Return bend

30. Drip tray 60. Secondary drip tray

61. Guide 62. Overflow prevention

The present invention for achieving this object is;

In the indoor unit of the air conditioner is installed inside the housing and has a plurality of heat exchange fins and a refrigerant pipe that passes through it several times, and an air conditioner having a drip tray disposed below the evaporator to collect and discharge the condensate generated from the evaporator,

The housing is located under the refrigerant pipe outside the heat exchange fin of the evaporator, characterized in that the auxiliary drip tray for guiding the condensate generated therein to the drip side is integrally provided.

In addition, the housing includes a rear panel on which the evaporator is disposed, and a front panel coupled to cover the rear panel and having an air inlet formed at a portion corresponding to the evaporator,

The auxiliary drip tray is formed to extend upward along the side of the guide so that the condensate flows only through the guide and the guide unit integrally formed to slope downward toward the drip tray from the inner surface of the rear panel adjacent to the refrigerant pipe outside the heat exchange fin of the evaporator. It characterized in that it comprises a prevention unit.

Hereinafter, one preferred embodiment according to the present invention will be described in detail with reference to the accompanying drawings. Briefly, the accompanying drawings, Figure 3 shows the overall structure of the indoor unit of the air conditioner to which the present invention is applied, Figure 4 is an extract of the auxiliary drip tray structure according to the present invention. The indoor unit installed in the form will be described as an example.)

As shown in FIG. 3, the indoor unit of the air conditioner according to the present invention includes a housing 10 constituting an external body, an evaporator 20 installed in the housing 10, and generating cold air by heat exchange with intake air. And a fan 40 for forcibly blowing the generated cool air through the evaporator 20 to the indoor side, and a control box 50 equipped with electric parts for controlling the operation of the indoor unit.

The housing 10 is formed by combining the front panel 11 and the rear panel 12 to form a space in which refrigeration cycle components such as the evaporator 20 and the electrical equipment are built. The rear panel 12 enters through the connection refrigerant pipe 24 for connecting the evaporator 20 and the outdoor side (condenser), and the control box 50 and a fan to be described later on one side of the rear panel 12. The motor 41 and the like are firmly mounted. In addition, the front panel 11 is formed with a suction port 11a through which the indoor air is sucked into the front side, and a discharge port 11b through which the heat-exchanged air is discharged back into the room. In addition, the front panel 11 is equipped with a grill device 13 for preventing the inflow of foreign matter, which is attached to the grill frame 13a which is detachably fastened to the front panel 11, and the rear of the grill frame 13a. It consists of an air filter 13b to be attached.

The evaporator 20 is embedded in the housing 10 adjacent to the inlet port 11a so as to exchange heat with the intake air. The evaporator 20 is arranged to pass through the heat exchange fins 21 and a plurality of heat exchange fins 21 arranged in parallel. The refrigerant pipe 22 and the return bends 23 of the “U” shape are formed to interconnect one end of the refrigerant pipe 22 outside the heat exchange fin 21 to form one refrigerant path line. The evaporator 20 is connected to the condenser (not shown) and the compressor (not shown) and the connecting refrigerant pipe 24 of the outdoor side by a closed circuit.

In addition, the bottom of the evaporator 20 is provided with a drip tray 30 for collecting condensate. That is, the drip tray 30 is disposed to surround the bottom of the evaporator 20 to collect the condensate generated therein. In addition, a hose connecting portion (not shown) is integrally provided at one side of the drip tray 30, and a drain hose (not shown) extending outside the housing 10 is connected.

And the fan 40 is made of a kind of cross-flow fan and is disposed in the horizontal direction along the evaporator 20 and the discharge port (11b). In addition, a fan motor 41 for driving the fan 40 is mounted on one side of the housing 10, that is, the rear panel 12. Therefore, when the fan 40 is rotated by the driving of the fan motor 41, the heat exchanged air passing through the evaporator 20 is forcibly blown to the discharge port (11b). Reference numeral 42 denotes a motor cover which is mounted to cover the fan motor 41.

On the other hand, the auxiliary drip tray (60) for taking the condensed water generated from the refrigerant pipe (22), that is, the return bend (23) leaving the heat exchange fin (21) of the evaporator (20) during operation of the indoor unit to guide the drip tray (30) side Is integrally molded to the rear panel 12, its detailed structure is as follows.

That is, the evaporator 20, as described above, the refrigerant pipes 22, which are out of the heat exchange fins 21, are connected through the return bend 23, and the condenser and the compressor of the outdoor unit installed outdoors are connected to the refrigerant pipe 24. It is connected to the closed circuit through. Reference numeral “70” is a heat insulating member provided to surround a portion of the connection refrigerant pipe 24 introduced through the rear panel 12 to connect the evaporator 20 and the condenser.

In addition, an auxiliary drip tray 60 is integrally provided on the inner surface of the rear panel 12 adjacent to the return bends 23 of the refrigerant pipe 22, which is located below the return bends 23 of the refrigerant pipe 22. When the rear panel 12 of the plastic material is manufactured to be integrally configured.

That is, the auxiliary drip tray 30 is inclined downward toward the drip tray 60 at the upper end of the inner surface of the rear panel 12, as shown in Figure 4, the return bend (located above the evaporator 20 ( 23 to guide the condensate falling from the 23 to the drip tray 30 side, and to prevent the condensate flowing along the guide 61 to enter the fan motor 41 side ( The overflow prevention part 62 provided upwards along the side surface of 61 is provided. Accordingly, the condensed water generated in the return bend 23 of the evaporator 20 flows down only along the inclined guide portion 61 of the auxiliary drip tray 60 to be guided to the drip tray 30 side.

Next, the operation of the auxiliary drip tray according to the present invention configured as described above and the effects thereof will be described.

First, as the fan 40 is driven, the indoor air is sucked into the housing 10 through the suction port 11a while the foreign matter is filtered out, and heat exchanges while passing through the evaporator 20. The heat-exchanged air is discharged back to the room through the discharge port 11b by the forced blowing force of the fan 40, whereby the indoor air is harmonized.

In the air circulation process, the evaporator 20 generates condensed water by heat exchange with wet air, which is collected in the drip tray 30 and is continuously discharged out of the housing 10 through a drain hose.

In addition, condensate is also generated in the refrigerant pipe 22 and the return bend 23 exposed to the atmosphere outside the heat exchange fins 21 of the evaporator 20. The condensate is dropped by its own weight and is a secondary sump 60. (30) ?? It is discharged through the drain hose. That is, the condensed water generated in the refrigerant pipe 22 leaving the heat exchange fin 21 of the evaporator 20 falls to the drip tray 30 along the guide portion 61 of the auxiliary drip tray 60 and continues to the drip tray 30. It joins with the water collected in and exits out of the housing 10.

Accordingly, in the refrigerant pipe 22 deviating from the heat exchange fin 21 of the evaporator 20 through the auxiliary drip tray 60 integrally formed on the inner surface of the rear panel 12 of the housing 10 as well as the evaporator 20. Condensed water is completely discharged to the drip tray (30). At this time, the condensate is prevented from flowing to the fan motor 41 by the overflow prevention part 62 provided along the side surface of the guide part 61.

As described in detail above, according to the indoor unit of the air conditioner according to the present invention, an auxiliary drip tray for taking the condensed water generated in the refrigerant pipe extending out of the heat exchange fin of the evaporator and guiding it to the drip tray side is integrated on the inner surface of the rear panel of the housing. Is molded. Accordingly, the condensate generated in the refrigerant pipe outside the heat exchange fin of the evaporator falls into the drip tray through the auxiliary drip tray and is completely discharged to the outside of the housing, thereby preventing the condensed water from falling into the room and thereby causing electrical damage. In addition, since the auxiliary drip tray is integrally molded to the rear panel of the housing, the number of parts is reduced, thereby improving the workability of assembling the air conditioner and reducing the manufacturing cost.

Claims (2)

In the indoor unit of the air conditioner installed in the housing and having a plurality of heat exchange fins and a refrigerant pipe passing through it several times, and the drip tray disposed under the evaporator to collect and discharge the condensate generated in the evaporator, The housing is an indoor unit of the air conditioner, characterized in that the auxiliary drip tray which is located in the lower portion of the refrigerant pipe deviating from the heat exchange fin of the evaporator to guide the condensate generated therein to the drip tray side. The method of claim 1, The housing; A rear panel on which the evaporator is disposed, a front panel coupled to cover the rear panel, and an air inlet formed at a portion corresponding to the evaporator; The auxiliary drip tray; A guide part integrally formed to be inclined downward toward the drip tray at an inner surface of the rear panel adjacent to the refrigerant pipe deviating from the heat exchange fin of the evaporator, and extended upward along the side of the guide part so that condensate flows only through the guide part; Indoor unit of the air conditioner, characterized in that it comprises an overflow prevention portion provided.