KR20070074403A - Drain pan of indoor unit for air conditioner - Google Patents

Abstract

A drain pan of an indoor unit for an air conditioner is provided to prevent scattering of condensed water by making the condensed water to be not contacted with air, and to prevent erosion and damage of parts generated by contacting with the condensed water. A drain pan(90) of an indoor unit for an air conditioner collecting condensed water generated on an outer surface of a heat exchanger when indoor air is heat-exchanged by the heat exchanger comprises a partition wall(94) and a drain guide hole(98). The partition wall upwardly and downwardly partitions water collection space(92) collecting the condensed water on one side of the drain fan. The drain guide hole guides the condensed water collected in the water collection space so as to be drained to the outside.

Description

Drain pan of indoor unit for air conditioner

1 is an exploded perspective view showing the configuration of an indoor unit of a conventional air conditioner.

Figure 2 is a longitudinal sectional view showing the internal configuration of the indoor unit of the air conditioner according to the prior art.

3 is a perspective view showing an indoor unit of an air conditioner employing a preferred embodiment of the present invention.

Figure 4 is an enlarged perspective view showing one embodiment of the indoor unit drain fan of the air conditioner according to the present invention.

5 is a longitudinal cross-sectional view of the AA ′ portion of FIG. 4.

Figure 6 is an enlarged perspective view showing another embodiment of the air conditioner indoor unit drain pan according to the present invention.

7 is a longitudinal cross-sectional view taken along the line B-B 'of FIG.

Explanation of symbols on the main parts of the drawings

10. Main Unit 12. Inlet

14. Discharge port 16. Discharge port

20. Blower unit 21. Cover

22. Song Unit Unit 23. Cover

24. Fan 28. Fan Housing

30. Heat Exchanger 40. Electric Unit

42. Control box 50. Base panel

52. Front Panel 53. Handle

54 Side panel 55. Corner frame

56. Corner Frame 58. Other Panel

60. Legs 61. Space

70. Motor 80. Supporter

90. Drain pan 92. Collection space

92 '. 1st collecting space 92 ". 2nd collecting space

94. Bulkhead 95. Condensate Holes

98. Drainage Guide

The present invention relates to an indoor unit of an air conditioner, and more particularly, to form a partition inside a drain pan in which condensate generated from a heat exchanger is collected, to prevent air condensation from being scattered due to strong air flow. The present invention relates to a drain pan of an indoor unit.

In general, an air conditioner is a cooling / heating device installed in an indoor space, such as an office or a home, to cool or heat a room. The air conditioner includes a compressor, a condenser, an expansion valve, and an evaporator.

In particular, an air conditioner is an outdoor unit (sometimes called an 'outdoor' or a 'heat sink') mainly installed outdoors, and an indoor unit (also called an 'indoor' or 'heat absorbing side') mainly installed inside a building. The outdoor unit is provided with a condenser (outdoor heat exchanger) and a compressor, and the indoor unit is provided with an evaporator (indoor heat exchanger).

As is well known, an air conditioner may be broadly divided into a separate type air conditioner in which the outdoor unit and the indoor unit are separately installed, and an integrated air conditioner in which the outdoor unit and the indoor unit are integrally installed.

The indoor unit of the separate type air conditioner is divided into a frame type, a wall type, a stand type, and the like according to the installed position or shape, and such various indoor units are connected to an outdoor unit (not shown) by a refrigerant pipe (not shown) to provide a refrigerant cycle. Can be achieved.

In recent years, due to the space occupied by the indoor unit, the duct type air conditioner for mounting the indoor unit on a ceiling, a wall, a veranda, or the like outdoors on a rooftop, and supplying air-conditioned air from the indoor unit to the room through a duct increases. to be.

1 is an exploded perspective view showing the configuration of a conventional air conditioner indoor unit, Figure 2 is a longitudinal sectional view showing the internal configuration of the air conditioner indoor unit according to the prior art.

As shown in these figures, the indoor unit of a conventional duct type air conditioner is provided with a main body 3 having an inlet 1 and an outlet 2, and is provided inside the main body 3 and has the outlet 2. And a blower unit 4 connected to the heat exchanger, a heat exchanger 5 installed inside the main body 3 to exchange heat with the sucked air, and a duct 6 connected to the discharge port 2.

A drain pan 7 is provided below the heat exchanger 5. The drain pan 7 collects the condensed water generated on the outer surface of the heat exchanger 5 when the refrigerant passing through the heat exchanger 5 and the air exchanges heat, and the upper surface is recessed downward.

However, the drain pan 7 according to the related art having the above configuration has the following problems.

That is, when condensate is collected inside the drain pan 7, the condensate is exposed upward.

Therefore, when the blower unit 4 generates a suction force and the external air flows into the main body 3 through the suction port 1, there is a problem in that condensed water is scattered by the air flow.

In addition, when the condensate is scattered, there is a problem of causing corrosion by contacting a plurality of components mounted inside the main body 2.

In addition, corrosion of the components is undesirable because it will eventually cause breakage and failure.

Therefore, an object of the present invention is to solve the problems of the prior art as described above, by forming a partition in the drain pan partitioning the water collecting space up and down by air conditioning configured to prevent the collected condensed water in contact with the flowing air The present invention provides a drain pan of an indoor unit.

Another object of the present invention is to provide a drain fan of an indoor unit of an air conditioner which prevents the condensate from scattering by preventing contact between the condensate and the flowing air.

According to a feature of the present invention for achieving the above object, the present invention, in the drain fan of the air conditioner indoor unit for collecting the condensate generated on the outer surface of the heat exchanger when the indoor air is heat exchanged by the heat exchanger, One side of the drain pan, characterized in that it is provided with a partition for partitioning the collecting space in which the condensed water is collected up and down, and a drain guide for guiding the condensed water collected in the collecting space to the outside.

The catchment space may include: a first catchment space formed on an upper side of the partition wall and configured to first collect condensate flowing along the heat exchanger; And a second collecting space formed below the partition wall to accommodate the condensed water collected in the first collecting space so that the condensate is not exposed to the outside.

The barrier ribs are formed with a condensate moving hole for guiding the condensate water collected in the first collecting space to flow to the second collecting space.

The condensate moving hole is characterized in that it is provided with a plurality.

The drain guide is formed on one side of the inner wall surface of the second collecting space.

The partition wall is characterized in that it is formed to have a downward slope in one direction.

The condensed water moving hole is formed at one end of the partition wall.

The drain guide is formed on one side of the inner wall surface of the second collecting space.

According to the drain pan of the indoor unit of the air conditioner according to the present invention having such a configuration, since the scattering of foreign substances by the air flow is prevented, there is an advantage that corrosion due to contact between the condensate and the component is prevented.

Hereinafter, with reference to the accompanying drawings for the configuration of the indoor unit of the air conditioner according to the present invention will be described in detail.

3 is a perspective view showing an indoor unit of an air conditioner employing a preferred embodiment of the present invention.

As shown in FIG. 3, the indoor unit of the air conditioner according to the present invention includes a main body 10 having an inlet 12 and a plurality of discharge ports 14 and 16, and is provided inside the main body 10. A blower unit 20 connected to any one of the plurality of discharge ports 14 and 16, a heat exchanger 30 installed to shield the suction port 12, and heat exchanged with the sucked air, and the main body 10. It is configured to include an electrical equipment unit 40 is installed in the electrical equipment to control the air conditioner.

The main body 10 is installed upright from the base panel 50, the front panel 52 is installed upright from the front of the base panel 50, and upright from the side of the base panel 50. The top panel 58 is connected to the front panel 52 and the side panel 54 and is installed on the base panel 50.

Here, four corners of the main body 10 are provided with corner frames 55 and 56, respectively.

In particular, the corner frames 55 and 56 have a lower end connected with the base panel 50, a side end connected with the front panel 52 or the side panel 54, and an upper end thereof with the top panel 58. Connected with

The discharge holes 14 and 16 are formed in the front panel 52 and the top panel 58, respectively.

In addition, the inlet 12 is formed between the corner frame 56 located at the rear side of the main body 10, the heat exchanger 30 is installed to shield the inlet 12, the heat exchanger 30 Is located inside the main body 10.

In addition, a handle 53 is installed on the side panel 54, and the handle 53 allows the user to more easily support the side panel 54 when the side panel 54 is separated and assembled. .

Wherein the handle 53 is inserted into a hole (not shown) formed in the side panel 54 is fixed.

On the inner surface of the side panel 54, the above-described electrical unit 40 is installed. The electrical unit 40 is installed inside the main body 10 and is shielded by the side panel 54 and is not exposed to the outside.

That is, the electrical unit 40 is formed by the box-shaped control box 42, the main PCB (not shown) is installed inside the control box 42, the side panel 54 is installed The lateral direction is formed by opening. In particular, the control box 42 is shielded when the side panel 54 is installed and is not exposed to the outside.

A leg 60 supporting the base panel 50 is installed below the base panel 50. The leg 60 is formed bent in a 'U' shape when viewed from the side, the end is fixed to the lower end of the base panel 50.

In particular, the indoor unit is a large indoor unit to which the ducts are connected, and when a forklift (not shown) is used, the arm of the forklift is inserted into a space 61 formed by the leg 60.

That is, the legs 60 are installed at a predetermined distance apart so that the arms of the general forklift can be inserted, and the space 61 is formed wide enough to allow the arms to be inserted.

On the other hand, the blower unit 20 uses a brushless DC motor (BLDC motor 70) to drive the fan 24, the BLCD motor 70 is fixed to the fan housing 28 by the supporter 80. do.

The blower unit 20 includes a blower unit frame 22 fixed to the main body 10, a fan 24 for discharging air inside the main body 10 to the discharge port 14, and the fan 24. ) And a fan housing 28 for guiding the air blown by the fan 24 to the discharge port 14.

Here, the blowing unit 20 is a sirocco fan that sucks air from both sides of the fan housing 28.

The blower unit frame 22 is for fixing the fan housing 28 to the base 50, and is formed in a frame shape of a rectangular parallelepiped, and the fan housing 28 is fastened and fixed therein.

Here, the blower unit frame 22 is provided with a cover 21 to shield any one of the discharge ports 14 and 16 formed in the top panel 58 or the front panel 52.

That is, when the discharge hole 14 formed in the front of the indoor unit is opened, the cover 21 installed in the blower unit frame 22 shields the discharge hole 16 formed in the top panel 58.

Here, the cover 21 and 23 are installed on the upper and lower surfaces of the blowing unit frame 22, and the assembly or installer rotates the blowing unit frame 22 to which the fan housing 28 is fixed. One of the covers 21 and 23 provided in the unit frame 22 shields either the front discharge port 14 or the upper discharge port 16.

Wherein the cover 21, 23 is provided to form a continuous surface with the surface of the top panel 58 or the front panel 52, protrudes from the top panel 58 or the front panel 52 It forms a smooth side.

In particular, the covers 21 and 23 are integrally assembled to the blowing unit frame 22 and installed on the base 50. After installation of the blowing unit 20, the front panel 52 or the The top panel 58 is installed, and the shielding process of the discharge ports 14 and 16 is performed in the process of installing the blower unit 20.

Therefore, the indoor unit does not need to install a separate cover when shielding any one of the discharge port (14, 16).

On the other hand, the lower side of the heat exchanger 30 is provided with a drain pan 90, which is a main component of the present invention. The drain pan 90 collects the condensate generated when the heat exchanger 30 operates along the outer surface thereof, and has a substantially rectangular parallelepiped shape and is formed slightly longer than the length of the heat exchanger 30. Thus, the heat exchanger 30 is seated on the upper side.

 Hereinafter, the configuration of the drain pan 90 will be described in detail with reference to FIGS. 4 and 5.

Figure 4 is an enlarged perspective view showing an embodiment of the air conditioner indoor unit drain pan according to the present invention, Figure 5 is a longitudinal cross-sectional view of the AA 'portion of FIG.

As shown in these figures, the inside of the drain pan 90 is recessed downward to collect the condensed water to form a collecting space 92. The top surface of the drain pan 90 is formed by the partition wall 94.

The partition wall 94 divides the collecting space 92 up and down, and is spaced apart from the bottom surface of the collecting space 92 and has an area corresponding to the area of the collecting space 92.

Accordingly, the collecting space 92 is partitioned by the partition wall 94, and the first collecting space 92 ′ located above the partition 94 and the second collecting space located below the partition 94. And 92 ".

In more detail, the first collecting space 92 ′ is a space in which the condensed water flowing along the outer surface of the heat exchanger 30 is primarily collected. That is, the lower end of the heat exchanger is located in the first collecting space 92 ′, and the condensed water generated on the outer surface during heat exchange with the refrigerant inside the heat exchanger 30 and the outdoor air is the first collecting space ( 92 ') first.

The first collecting space 92 'and the second collecting space 92 "are configured to allow the flow of condensate. That is, the first collecting space 92' and the second collecting space 92". A plurality of perforated condensate moving holes 95 are formed in the partition wall 94 that partitions the gap.

Therefore, the first collecting space 92 ′ and the second collecting space 92 ″ communicate with each other by the condensate moving hole 95.

The second collecting space 92 "receives the condensed water collected in the first collecting space 92 'and collects the secondary water. That is, the second collecting space 92" and the first collecting water are collected. The space 92 ′ is in communication with each other by the condensed water moving hole 95 and is partitioned up and down by the partition 94.

Therefore, when condensate is firstly collected in the first collecting space 92 ′, the condensate moving hole 95 guides the condensed water collected in the first collecting space 92 ′ in a downward direction to collect a second collecting space. (92 ") to be collected.

In addition, the second collecting space 92 ″ simultaneously drains the condensed water collected therein to the outside of the drain pan 90.

That is, as shown in Figure 5, the back of the second collecting space 92 "is formed with a circular perforated drain guide 98. The drain guide 98 is formed in the rear of the drain pan 90 It extends in the shape of a circular tube in the rear, the interior is in communication with the second catchment space 92 ".

Therefore, the condensed water collected in the second collecting space 92 ″ is drained to the outside of the drain pan 90 through the drain guide port 98 that communicates with the outside except the upper surface of the drain pan 90.

Of course, one end of the drain hose (not shown) is connected to the drain guide port 98 and the other end of the drain hose is exposed to the outside, so that the condensate collected in the drain pan 90 is drained to the outside. .

Hereinafter, another embodiment of the drain pan 90 will be described with reference to the accompanying drawings.

6 is an enlarged perspective view showing another embodiment of the air conditioner indoor unit drain pan according to the present invention, and FIG. 7 is a longitudinal cross-sectional view of the portion B-B 'of FIG. 7.

As shown in these figures, another embodiment of the drain pan 90 has an appearance similar to that of the above-described embodiment, and the collecting space 92 is partitioned up and down by the partition wall 94.

However, the partition wall 94 is formed obliquely to have a downward slope toward the right side, and the condensate collected first in the first catchment space 92 ′ flows down the inclined partition wall 94 to flow to the right. do.

A condensed water moving hole 95 (see FIG. 7) is formed at the right end of the partition 94. The condensate movement hole 95 serves to guide the condensate collected in the first collection space 92 ′ to the second collection space 92 ″ as in the embodiment of the drain pan 90 described above. .

That is, the condensate movement hole 95 is drilled at the right end of the partition 94 to a length corresponding to the length before and after the partition 94 so that the first collecting space 92 ′ and the second collecting space 92 ″ are formed. Are configured to communicate with each other.

Therefore, the condensed water that has fallen on the upper surface of the partition 94 flows downward through the condensate moving hole 95 after flowing down to the right by the inclination of the partition 94 so that the second collecting space 92 ″ Housed inside.

Of course, it is obvious that the drain guide hole 98 formed in the rear of the second collecting space 92 ″ is formed at the rear side.

Hereinafter, the operation of the indoor unit of the air conditioner having the above configuration will be described based on the cooling mode.

First, when the power is applied to the indoor unit assembled as shown in Figure 3, the blower unit 20 operates to generate a suction force. In more detail, when the fan 28 rotates to generate suction power into the indoor unit, outside air is introduced into the indoor unit through the suction port 12.

Air introduced into the indoor unit through the suction port 12 is in contact with the outer surface of the heat exchanger 30 to be heat exchanged.

The air heat exchanged by the heat exchanger 30 is discharged to the outside of the indoor unit through the discharge ports 14 and 16, guided by a duct (not shown), and introduced into the indoor space, thereby enabling the interior to be cooled.

The condensed water generated during the heat exchange process of the heat exchanger 30 flows along the outer surface of the heat exchanger 30 and is collected in the upper surface of the drain pan 90, that is, the first collecting space 92 ′.

In this case, when the partition 94 is implemented as shown in FIG. 5, after the condensate flows downward through the plurality of condensate moving holes 95 and is collected in the second collecting space 92 ″, the drainage guide is provided. It is drained outdoors through the sphere 98.

Therefore, the condensed water collected in the drain pan 90 is eventually collected in the second collecting space 92 ″, so that contact with air is limited by the partition wall 94, and the rapid passing through the upper portion of the drain pan 90 occurs. Shattering by the air at speed is prevented.

On the other hand, when the partition 94 is formed obliquely as shown in FIG. 7, the condensed water collected in the first collecting space 92 ′ flows down along the partition 94 to allow the second collecting space 92 ″. After being collected in the water, it is drained to the outside through the drain guide 98.

The scope of the present invention is not limited to the above-exemplified embodiments, and many other modifications based on the present invention will be possible to those skilled in the art within the above technical scope.

For example, in another embodiment of the present invention, the drainage guide is formed to be perforated long to correspond to the front / rear length of the partition wall. It is obvious that it can also be configured to not flow into space.

In the drain pan of the indoor unit of the air conditioner according to the present invention as described above in detail, a partition wall is formed inside the drain pan, and the collecting spaces are communicated with each other above and below the partition wall.

Therefore, the condensate collected in the lower side of the partition wall is not in contact with the air flowing there is an advantage that the scattering of the condensate is prevented.

In addition, since the scattering of the condensate is prevented, there is an advantage in that corrosion and breakage of components that may be generated by contact of the condensate are prevented.

In addition, the above advantages are expected to improve the product satisfaction of the customer.

Claims (7)

In the drain fan of the indoor unit of the air conditioner to collect the condensed water generated on the outer surface of the heat exchanger during the heat exchange by the heat exchanger, On one side of the drain pan, A partition wall partitioning the collecting space into which the condensate is collected; The drain fan of the indoor unit of the air conditioner, characterized in that the drain guide is provided to guide the condensed water collected in the water collecting space to the outside. The method of claim 1, wherein the catchment space, A first collecting space formed on an upper side of the partition wall and collecting first condensed water flowing down the heat exchanger; And a second collecting space formed below the partition wall to accommodate the condensed water collected in the first collecting space so that the condensed water is not exposed to the outside. The drain pan of the air conditioner indoor unit according to claim 2, wherein the partition wall is provided with a condensate moving hole formed in a perforation to guide condensed water collected in the first collecting space to flow to the second collecting space. The drain pan of the indoor unit of claim 3, wherein the condensate moving hole is provided in plurality. The drain pan of the indoor unit of claim 3, wherein the partition wall is formed to have a downward slope in one direction. 6. The drain pan of the indoor unit of claim 5, wherein the condensed water moving hole is formed at one end of the partition wall.  The drain pan of the indoor unit of claim 4 or 6, wherein the drain guide is formed on one side of an inner wall surface of the second collecting space.

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