JPH0566426U - Air conditioner - Google Patents

Abstract

(57) [Abstract] [Purpose] Air conditioning with a small number of parts and sufficient and effective evaporation of drain water of the indoor heat exchanger by the radiation fins of the outdoor heat exchanger without generating noise. Equipment supply. [Structure] A large number of heat radiation fins 11 vertically arranged at intervals, a tube 13 extending meanderingly across the heat radiation fins, and a burlin portion 1 formed between the heat radiation fins.
4a and the gap 14b are continuous, and the outdoor heat exchanger 4 has a water channel 14 extending across each radiating fin at the upper part of the tube, and drain water and water channel guided from the indoor heat exchanger via the drain pipe 9. A drain pan 1 for receiving drain water that has flowed down along each radiating fin from each gap 14b of
6 and a drain pump 18 for supplying drain water in the drain pan to the inlet of the water channel 14 via a drain hose 17. The drain water is evaporated by heat radiation from each radiation fin while flowing down from each gap of the water passage along each radiation fin.

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner configured to guide drain water of an indoor heat exchanger to radiating fins of an outdoor heat exchanger for evaporation. [00
02

[Prior Art]

 Conventionally, in such an air conditioner, for example, drain water of the indoor heat exchanger is guided by a gutter to a part of the radiation fins of the outdoor heat exchanger, and the drain water is radiated by the radiation fins of the outdoor heat exchanger. (For example, Japanese Utility Model Publication No. 63-11531), or drain water that is introduced from the indoor heat exchanger and accumulated in the drain pan is rotated by the rotation of the rotary blades to the heat radiation fins of the outdoor heat exchanger. It is known that the drain water is vaporized by being radiated by the radiation fins of the outdoor heat exchanger by scraping it up and scattering it.

[0003]

[Problems to be solved by the device]

 However, in the former prior art, the drain water is guided to only a part of the heat dissipation fin of the outdoor heat exchanger, that is, the evaporation area of the heat dissipation fin used for evaporating the drain water is small, so the drain water However, there is a problem that the heat cannot be sufficiently and effectively vaporized, and the heat dissipation effect of the outdoor heat exchanger cannot be sufficiently enhanced due to the latent heat of vaporization of drain water. Further, in this conventional technique, since the drain water cannot be evaporated sufficiently and effectively, when the outdoor unit including the outdoor heat exchanger is attached to the outer wall of the second floor of the building, etc., There was a problem that the external appearance of the building would be poor because it was necessary to install a drain pipe on the outer wall of the building to drain the drain water that could not be evaporated by the radiating fins from the outdoor unit to the ground.

Further, in the latter prior art described above, since the drain water accumulated in the drain pan is scooped up by the rotation of the rotary blades to be scattered to the radiating fins of the outdoor heat exchanger, the drain water is wide in the radiating fins. Drain water cannot be evaporated sufficiently and effectively because it is difficult to scatter and scatter over the area. Therefore, also in this conventional technique, similarly to the former conventional technique, a drain pipe that drains drain water that cannot be completely evaporated by the radiation fins to the ground from an outdoor unit attached to the outer wall of the second floor is installed on the outer wall of the building. However, there was a problem that the appearance of the building would be poor. Further, in this conventional technique, the rotary vanes, the motor for driving the vanes, and the drain water scraped up by the rotary vanes are prevented from splashing outside (for example, mounted on the outer wall of the second floor of the building, etc.). Since a cover for preventing splashes is required to prevent the drain water from splashing downstairs from the outdoor unit, the number of parts increases and the noise generated in the outdoor unit also increases. There was a problem.

The present invention has been made by paying attention to such a conventional problem, and the drain water of the indoor heat exchanger can be supplied to the outdoor heat exchanger with a small number of parts and without generating noise. It is an object of the present invention to provide an air conditioner that can sufficiently and effectively evaporate with a heat dissipation fin and can sufficiently enhance the heat dissipation effect of an outdoor heat exchanger by latent heat of evaporation of drain water.

[0006]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention provides an air conditioner that guides drain water of an indoor heat exchanger to radiating fins of an outdoor heat exchanger to evaporate, and includes a large number of radiating fins vertically arranged at intervals. A refrigerant guide tube extending in a meandering manner from top to bottom so as to traverse each heat radiation fin over the entire heat exchange portion with the heat radiation fin, and a burlin portion formed between the heat radiation fins. A gap is continuous, and an outdoor heat exchanger having a drain water guiding channel that extends across each of the radiation fins above the tube, and a drain pipe that is guided from the indoor heat exchanger through a drain pipe. A drain pan that receives the drain water and the drain water that has flowed down along each of the radiation fins from each gap of the water channel, and the drain water in the drain pan is supplied to the inlet of the water channel through a drain hose. Those comprising a drain pump to be.

[0007]

[Action]

 In the above-mentioned air conditioner, the drain water of the indoor heat exchanger is introduced into the drain pan through the drain pipe and pooled, and this drain water is supplied to the inlet of the water channel through the drain hose by the drain pump. The supplied drain water is guided to the upper part of the radiating fins by being guided by each burring portion of the water channel, and the introduced drain water flows down from each gap of the water channel along each radiating fin. Then, it is evaporated by the heat radiation from each radiation fin. At this time, a part of the drain water that does not evaporate and flows down and remains in the oil pan is repeatedly supplied to the water channel by the drain pump and evaporated.

[0008]

【Example】

 Hereinafter, an air conditioner according to an embodiment of the present invention will be described with reference to the drawings.

As shown in FIGS. 1 and 3, the air conditioner 1 according to this embodiment is attached to, for example, an inner wall portion 2b of a room 2a on the second floor of a building 2 and has an indoor heat exchanger (not shown). An indoor unit 3 including an (evaporator), a compressor, a blower, etc., and an outdoor unit 6 including an outdoor heat exchanger (condenser) 4, a fan 5, etc., which is attached to the outer wall portion 2c of the second floor of the building 2 An inlet side pipe 7 for guiding the refrigerant gas from the compressor to the inlet side of the outdoor heat exchanger 4, and an outlet side pipe 8 for guiding the liquid refrigerant from the outlet side of the outdoor heat exchanger 4 to the inlet side of the indoor heat exchanger 4. And a drain pipe 9 that guides drain water of the indoor heat exchanger to the outdoor unit side.

As shown in FIGS. 1 and 2, the outdoor heat exchanger 4 of the outdoor unit 6 includes a machine frame 10 having an opening 10 a through which air passes, and a vertical space with a space in the machine frame 10. A large number of heat dissipating fins 11 arranged in the heat dissipating fins, and a tube for guiding the refrigerant that meanders from the top to the bottom so as to traverse each heat dissipating fin 11 over the entire heat exchanging part 12 with the heat dissipating fins 11. 13, a burring portion 14a and a gap 14b formed between the radiation fins 11 are continuous, and a drain water guiding channel 14 extending across each radiation fin 11 at the upper portion of the tube 13 and this channel It has a connecting pipe 15 fitted and attached to the inlet portion of 14. A connection portion 13a with the inlet side pipe 7 is provided at the inlet side end portion of the tube 13, and a connection portion 13b with the outlet side pipe 8 is provided at the outlet side end portion thereof.

Further, in the outdoor unit 6, in addition to the outdoor heat exchanger 4, the drain water introduced from the indoor heat exchanger in the indoor unit 3 via the drain pipe 9 and the water passage 14 described above. A drain pan 16 for receiving drain water flowing down along each radiating fin 11 from each of the gaps 14b, a drain pump 18 for supplying drain water in the drain pan 16 to the connecting pipe 15 via a drain hose 17, and a case 20. (See FIG. 3) and are provided. The outdoor heat exchanger 4 and the drain pump 18 are arranged in the drain pan 16.

The drain pump 18 is automatically operated by turning on an air conditioner switch (not shown) arranged in the operation unit of the indoor unit 3, or drain water accumulated in the oil pan 16 is removed. It may be activated when a sensor (not shown) detects that the water level has reached a certain level.

In the air conditioner according to the embodiment having the above-mentioned configuration, the drain water of the indoor heat exchanger in the indoor unit 3 is introduced into the drain pan 16 through the drain pipe 9 and pools, and this drain water is drained. It is supplied to the connecting pipe 15 via a drain hose 17 by a pump 18. The drain water supplied to the connecting pipe 15 is guided by the burring portions 14a of the water channel 14 to the upper portion thereof over the radiating fins 11, and the guided drain water is provided in the gaps 14b of the water channel 14. While flowing down along each radiation fin 11, it is evaporated by the radiation in each radiation fin 11. At this time, a part of the drain water that flows down and accumulates in the drain pan 16 without being vaporized is repeatedly supplied to the water passage 14 by the drain pump 18 and evaporated.

As described above, according to the above-described embodiment, the drain water is vaporized by using the entire radiation fins 11, and the drain water that flows down along the radiation fins 11 without being vaporized is drained by the drain pump 18. Since the water is repeatedly supplied to the water channel 14, the drain water of the indoor heat exchanger can be sufficiently and effectively vaporized by the radiation fins 11 of the outdoor heat exchanger 4, and the outdoor heat exchange is performed by the latent heat of vaporization of the drain water. The heat dissipation effect of the container 4 can be sufficiently enhanced. As a result, when the outdoor unit 6 including the outdoor heat exchanger 4 is attached to the outer wall portion 2c of the second floor of the building 2 and the like, a drain pipe for draining drain water from the outdoor unit 6 to the ground is provided in the building 2. There is no need to install it on the outer wall, and the appearance of the building will look good.

In addition, according to the above-described embodiment, since the rotary blade that scoops up and disperses the drain water on the radiation fin and the motor that drives the drain water are not used as in the above-described conventional technique, the number of parts is reduced and the noise is reduced. It is possible to sufficiently and effectively evaporate the drain water of the indoor heat exchanger by the radiation fins 11 of the outdoor heat exchanger 4 without generating the above.

In the above embodiment, the outdoor unit 6 is provided with the case 20 as shown in FIG. 3, but the case 20 is not always necessary. Even without the case 20, drain water does not splash downward from the outdoor unit 6 attached to the outer wall portion 2c of the second floor of the building 2.

Although the drain pump 18 is arranged in the drain pan 16 in the above-described embodiment, the pump 18 is arranged outside the drain pan 16 and the inlet side of the pump 18 and the drain pan 16 are arranged. You may make it connect with a pipe.

[0018]

【The invention's effect】

 As described above, according to the air conditioner of the present invention, in the air conditioner in which the drain water of the indoor heat exchanger is guided to the radiating fins of the outdoor heat exchanger to evaporate, the air conditioners are vertically arranged with a space therebetween. A plurality of heat radiation fins, a cooling medium guide tube that meanders downward from above so as to traverse each heat radiation fin over the entire heat exchange portion with the heat radiation fin, and each heat radiation fin. A burring portion formed between the burring portion and a gap is continuous, and an outdoor heat exchanger having a drain water guiding channel extending across each of the heat dissipating fins at the upper part of the tube, and a drain port from the indoor heat exchanger. Drain water introduced through the drain pipe and drain water that receives the drain water that has flowed down along each of the radiation fins from each gap of the water channel, and the drain water in the drain pan through the drain hose. With the configuration including the drain pump that supplies the water to the inlet of the water channel, the drain water of the indoor heat exchanger is introduced into the drain pan through the drain pipe and pooled, and this drain water is drained through the drain hose by the drain pump. Is supplied to the inlet part of the water channel, and the supplied drain water is guided by the burring parts of the water channel to be guided to the upper part over the entire radiation fin, and the drain water thus guided is supplied to each gap of the water channel. While it is flowing down along each radiating fin, it is evaporated by the heat radiated by each radiating fin, and at this time, a part of the drain water that flows down and accumulates in the oil pan without being evaporated is repeated by the drain pump. It is supplied to the water channel and evaporated. Therefore, the drain water of the indoor heat exchanger can be sufficiently and effectively vaporized by the radiation fins of the outdoor heat exchanger with a small number of parts and without producing noise, and the latent heat of vaporization of the drain water is used. The heat radiation effect of the outdoor heat exchanger can be sufficiently enhanced.

Further, since the drain water of the indoor heat exchanger can be sufficiently and effectively evaporated by the radiation fins of the outdoor heat exchanger, the outdoor heat exchanger of the air conditioner according to the present invention can be installed in the building 2 When it is installed on the outer wall of the floor, it is not necessary to install a drain pipe on the outer wall of the building to drain the drain water from the second floor to the ground, and the appearance of the building looks good.

[Brief description of drawings]

FIG. 1 is a perspective view showing a main part of an air conditioner according to an embodiment of the present invention.

FIG. 2 is an enlarged cross-sectional view showing a part of the outdoor heat exchanger shown in FIG.

FIG. 3 is a perspective view showing a state in which the air conditioner according to one embodiment is attached to a building.

[Explanation of symbols]

 1 Air Conditioner 4 Outdoor Heat Exchanger 9 Drain Pipe 11 Radiating Fin 12 Heat Exchange Section 13 Refrigerant Guide Tube 14 Water Channel 14a Burring Section 14b Gap 16 Drain Pan 17 Drain Hose 18 Drain Pump

Claims (1)

[Scope of utility model registration request] 1. An air conditioner for guiding drain water of an indoor heat exchanger to radiating fins of an outdoor heat exchanger to evaporate the radiating fins, a plurality of radiating fins vertically arranged at intervals, and external air having the radiating fins. And a burring portion formed between each of the heat radiating fins and a gap formed between the radiating fins and the refrigerant guide tube that meanders from the top to the bottom of the heat radiating fin across the entire heat exchanging portion. And an outdoor heat exchanger having a drain water guiding water channel extending across each of the radiation fins at the upper part of the tube, and drain water guided from the indoor heat exchanger through a drain pipe and each gap between the water channels. A drain pan that receives the drain water that has flowed down along each of the radiation fins, and a drain pump that supplies the drain water in the drain pan to the inlet of the water channel via a drain hose. An air conditioner characterized by comprising: