CN112334713A

CN112334713A - Outdoor air conditioner

Info

Publication number: CN112334713A
Application number: CN201980042906.0A
Authority: CN
Inventors: 森本康介; 上総拓也; 堤健太; 秋田和洋; 和阪学弘; 中谷英敏; 福嶋涉
Original assignee: Daikin Industries Ltd
Current assignee: Daikin Industries Ltd
Priority date: 2018-06-29
Filing date: 2019-03-27
Publication date: 2021-02-05
Anticipated expiration: 2039-03-27
Also published as: JP2020008268A; WO2020003664A1; JP6733764B2; CN112334713B

Abstract

The outdoor air conditioner performs air conditioning of a large outdoor area. In the outdoor heat exchanger, if water in a space including the first heat exchanger (6) disposed at the upper portion enters the interior, the water may have an adverse effect on the internal equipment. An outdoor air conditioning device (100, 100a) has a single casing (10) that houses a compressor (1), a first heat exchanger (6), a first water receiving tray (15, 15a) for storing water in a space including the first heat exchanger (6), a first fan (7), a second heat exchanger (3) below the first heat exchanger (6), and a second fan (4). First drainage channels (62, 71) for discharging water accumulated in the first drip tray (15) are formed.

Description

Outdoor air conditioner

Technical Field

The present invention relates to an air conditioner used outdoors.

Background

An air conditioning apparatus is known which includes a utilization-side heat exchanger and a heat-source-side heat exchanger in one casing. Conventional air conditioners are generally used for cooling and dehumidifying a local space in a room. For example, patent document 1 (japanese patent application laid-open No. 2006-242510) discloses an air conditioning device that includes a condenser, an evaporator in one casing, and is assumed to perform local cooling and dehumidification.

Disclosure of Invention

Technical problem to be solved by the invention

In recent years, outdoor activities have increased, and demand for outdoor air conditioners has increased in places such as outdoor event venues and terrace seats in restaurants. An outdoor air conditioner includes two heat exchangers of an evaporator and a condenser in one casing. It is considered that water generated by the heat exchanger or water entering the vicinity of the heat exchanger from the outside exists in the vicinity of the heat exchanger disposed at the upper portion, and if these waters are not appropriately treated, the water enters the inside of the apparatus and adversely affects the inside.

Technical scheme for solving technical problem

An outdoor air conditioner according to a first aspect is an air conditioner used outdoors. The outdoor air conditioning device comprises a compressor, a first heat exchanger, a first water pan, a first fan, a second heat exchanger, a second fan and a shell. The first heat exchanger is one of an evaporator or a condenser, and the second heat exchanger is the other. The second heat exchanger is disposed below the first heat exchanger. The first water receiving tray is used for storing water generated by the first heat exchanger or a space containing the first heat exchanger or water flowing into the space. The first fan is used to flow air through the first heat exchanger. The second fan is used to flow air through the second heat exchanger. The shell is used for accommodating the compressor, the first heat exchanger, the first water pan, the first fan, the second heat exchanger and the second fan. The outdoor air conditioner is provided with a first drainage channel for discharging water accumulated in the first water receiving tray.

The space including the first heat exchanger is a space including the first heat exchanger and partitioned by the housing and a partition plate (an intermediate plate, a drain pan, or the like) dividing the interior of the housing into upper and lower parts.

Preferably, the housing has a pillar, a bottom plate, and a top plate.

Since the outdoor air conditioner according to the first aspect has the first drain passage, the inflow of water into the interior of the casing below the first drain pan is suppressed.

In the air conditioning apparatus according to the first aspect, in the outdoor air conditioning apparatus according to the second aspect, the first drain passage is formed with a hole or a notch that constitutes a part of the first drain passage.

In the outdoor air conditioner according to the second aspect, since the hole or the notch is formed in the first drain pan, the water in the first drain pan can be discharged more efficiently.

In the outdoor air conditioning apparatus according to the third aspect, the air conditioning apparatus further includes a support column extending in the vertical direction. Further, a first drainage channel is formed in the pillar.

In the outdoor air conditioning apparatus according to the third aspect, the first drainage channel is formed in the support, and therefore, water can be prevented from flowing into the space surrounded by the support below the first drain pan.

In the air conditioning apparatus according to the first or second aspect, the first drain passage includes a hose connected to the first drain pan in the outdoor air conditioning apparatus according to the fourth aspect.

In the outdoor air conditioning apparatus according to the fourth aspect, the first drain passage includes the hose, and therefore the first drain passage can be flexibly disposed.

In the outdoor air conditioning apparatus according to a fifth aspect, in addition to the outdoor air conditioning apparatus according to any one of the first through fourth aspects, the first drain path is configured to: at least a part of the water accumulated in the first water receiving tray can be discharged to the outside of the housing through the first drain passage.

In the outdoor air conditioner according to the fifth aspect, at least a part of the water accumulated in the first drain pan is discharged to the outside of the casing, and therefore, little excess water is accumulated in the casing.

The outdoor air conditioner according to a sixth aspect of the present invention is the outdoor air conditioner according to any one of the first to fifth aspects, further comprising a second drain pan. The second water pan is used for storing water in the space containing the second heat exchanger. The space including the second heat exchanger is a space including the second heat exchanger and partitioned by the housing and a partition plate (an intermediate plate, a water receiving tray, or the like) that vertically partitions the inside of the housing.

In the outdoor air conditioning apparatus according to the sixth aspect, since the second drain pan is provided, moisture generated in the second heat exchanger, rainwater entering the second heat exchanger, and the like can be accumulated.

In the outdoor air conditioning apparatus according to the sixth aspect, the first drain path is configured to: at least a part of the water accumulated in the first water receiving tray can flow to the second water receiving tray through the first drainage channel.

In the outdoor air conditioner according to the seventh aspect, since the water accumulated in the first drain pan is not discharged, but flows to the second drain pan, the water can be accumulated in the casing or reused.

In the outdoor air conditioner according to the eighth aspect, the third drainage path is formed in addition to the outdoor air conditioner according to the seventh aspect. The third drainage channel discharges the water accumulated in the second water receiving tray to the outside of the shell.

In the outdoor air conditioning apparatus according to the eighth aspect, since the third drainage channel is provided to drain the water accumulated in the second drain pan to the outside of the casing, the water can be prevented from entering the space below the second drain pan inside the casing.

In the outdoor air conditioning apparatus according to the eighth aspect, the third drain path includes a hose connected to the second drain pan in the outdoor air conditioning apparatus according to the ninth aspect.

In the outdoor air conditioner according to the ninth aspect, the third drainage path includes a hose, and therefore the third drainage path can be flexibly arranged.

In the outdoor air conditioner according to a ninth aspect, in the outdoor air conditioner according to the tenth aspect, the bottom surface of the second drain pan that receives water is inclined such that a portion in which the third drainage channel is formed is lower than a portion into which water from the first drainage channel flows.

In the outdoor air conditioning apparatus according to the tenth aspect, the second drain pan is inclined and the portion where the third drain passage is formed is low, so that water is collected in the third drain passage and is easily drained.

In the outdoor air conditioning apparatus according to the tenth aspect, the base is further formed on the second drain pan in the outdoor air conditioning apparatus according to the eleventh aspect. The base supports the second heat exchanger and supports the second heat exchanger in a horizontal state.

In the outdoor air conditioning apparatus according to the eleventh aspect, since the second drain pan is provided with the pedestal for supporting the second heat exchanger, the second heat exchanger can be horizontally supported by the second drain pan that is inclined.

The outdoor air conditioner according to a twelfth aspect is the outdoor air conditioner according to the sixth or seventh aspect, further comprising a water storage tank.

In the outdoor air conditioner according to the twelfth aspect, since the air conditioner includes the water reservoir, excess water can be stored in the water reservoir without flowing down to the periphery of the casing.

The outdoor air conditioner according to a thirteenth aspect is the outdoor air conditioner according to any one of the sixth, seventh, and twelfth aspects, further comprising a pump. The water accumulated in the second water receiving tray can be sent to the space containing the first heat exchanger.

The outdoor air conditioner according to the thirteenth aspect can send the water accumulated in the second drain pan to the first heat exchanger and reuse the water.

In the outdoor air conditioning apparatus according to the fourteenth aspect, the second drainage passage is formed in a member constituting the casing in addition to the outdoor air conditioning apparatus according to any one of the first to thirteenth aspects. The second drainage path inhibits water from flowing into the interior from the top surface of the housing.

In the outdoor air conditioning apparatus according to the fourteenth aspect, since the second drainage channel is formed, it is possible to suppress water such as rainwater from flowing into the apparatus from the outside.

In the outdoor air conditioning apparatus according to the fifteenth aspect, the second drainage passage is formed in the column. The second drainage path inhibits water from flowing into the interior from the top surface of the housing. Further, different paths for the first drainage path and the second drainage path are formed in the strut.

In the outdoor air conditioner according to the fifteenth aspect, since the first drain passage and the second drain passage are provided in the column, different treatments can be performed on the drains that have passed through the respective passages.

The outdoor air conditioning apparatus according to any one of the first to the third aspects, wherein the space including the second fan is disposed between the space including the first heat exchanger and the space including the second heat exchanger in the outdoor air conditioning apparatus according to a sixteenth aspect. The first water discharge passage is formed outside the space including the second fan.

Here, the space including the second fan refers to a blowout path and a blowout port of the air passing through the second heat exchanger. If the water in the first drainage path falls to the outlet, the water may be blown out together with the air by the airflow and may reach the user. In the outdoor air conditioner according to the sixteenth aspect, the first drainage channel is formed outside the space including the second fan, and therefore, water passing through the first drainage channel is not blown out from the outlet port.

The outdoor air-conditioning apparatus according to any one of the first to sixteenth aspects, wherein the outdoor air-conditioning apparatus according to the seventeenth aspect is configured to be operated so as to be capable of switching between a cooling operation and a heating operation.

In the outdoor air conditioner according to the seventeenth aspect, the operation can be switched between the cooling operation and the heating operation, and therefore, the outdoor air conditioner can be used for a long period of time.

Drawings

Fig. 1 is a diagram showing a refrigerant circuit of an outdoor air conditioning apparatus 100 according to a first embodiment.

Fig. 2 is an external perspective view of the outdoor air conditioning apparatus 100 according to the first embodiment.

Fig. 3A is a perspective view showing an internal configuration of the outdoor air conditioning apparatus 100 according to the first embodiment.

Fig. 3B is a vertical cross-sectional view showing the internal structure of the outdoor air-conditioning apparatus 100 according to the first embodiment.

Fig. 4 is a perspective view showing the internal structure of the outdoor air conditioning apparatus 100 and the second water discharge passage 61 according to the first embodiment.

Fig. 5A is a diagram showing a structure of the top plate 13 and the support post 11b of the first embodiment before assembly.

Fig. 5B is a diagram showing a structure in which the top plate 13 and the support 11B of the first embodiment are assembled.

Fig. 5C is a diagram showing the second drain path 61 and the first drain path 62 in the column 11b of the first embodiment.

Fig. 6 is a diagram illustrating the first drain path 62 of the outdoor air conditioning apparatus 100 according to the first embodiment.

Fig. 7A is a perspective view showing an internal configuration of an outdoor air conditioning apparatus 100a according to a second embodiment.

Fig. 7B is a perspective view of the internal structure of the outdoor air-conditioning apparatus 100a of the second embodiment, viewed from a different direction from fig. 7A and shown.

Fig. 7C is a sectional view of the hole 81d of the bottom plate 12a and the third drainage channel 73 of the second embodiment.

Fig. 8A is a plan view of the water tray 15a according to the second embodiment.

Fig. 8B is a sectional view taken along line i-i of the drip tray 15a according to the second embodiment.

Fig. 9A is a plan view of the water tray 17a according to the second embodiment.

Fig. 9B is a sectional view ii-ii of the water tray 17a according to the second embodiment.

Fig. 9C is a sectional view taken along line iii-iii of the water tray 17a according to the second embodiment.

Figure 9D is a cross-sectional view iv-iv of the drip tray 17a of the second embodiment.

Fig. 10 is a sectional view of the holes 81a to 81c of the

drip trays

15a and 17a and the filter 83 according to the second embodiment.

Fig. 11 is a plan view of the water tray 17b according to modification 2A.

Fig. 12 is a plan view of a water tray 17c according to modification 2B.

Detailed Description

< first embodiment >

(1) Structure of refrigerant circuit of outdoor air conditioner 100

Fig. 1 shows a refrigerant circuit of an outdoor air conditioning apparatus 100 according to a first embodiment, and fig. 2 shows a perspective view of the external appearance. The outdoor air conditioner of the present embodiment is an air conditioner that is disposed outdoors and performs heating, cooling, dehumidification, and the like outdoors by using a heat pump. Here, the outdoor means a space exposed to the outside air. For example, the present invention may be applied to places without a roof, such as parks and open stadiums, or places with a roof, such as outdoor spaces, kiosks, and balconies.

The outdoor air conditioner 100 may be a special refrigeration machine that performs only refrigeration or dehumidification. The outdoor air conditioner 100 may be a heating-only machine that performs only heating. The outdoor air conditioner 100 may be an air conditioner that performs heating in addition to cooling and dehumidification.

The outdoor air conditioning apparatus 100 of the present embodiment is an air conditioning apparatus in which the entire refrigerant circuit shown in fig. 1 is included in one casing 10. As shown in fig. 1, the outdoor air conditioner 100 includes a compressor 1, an accumulator 8, a four-way selector valve 2, a second heat exchanger 3, an expansion valve 5, and a first heat exchanger 6. These devices are connected by pipes, and a refrigerant circulates through each device, thereby performing a vapor compression refrigeration cycle. The outdoor air conditioner 100 further includes a second fan 4 and a first fan 7 that send air to the second heat exchanger 3 and the first heat exchanger 6, respectively. In other words, both the second heat exchanger 3 and the first heat exchanger 6 of the present embodiment are heat exchangers that exchange heat between the refrigerant and air.

In the case of cooling and dehumidification, the second heat exchanger 3 and the first heat exchanger 6 function as an evaporator and a condenser of the refrigeration cycle, respectively. In the case of heating, the second heat exchanger and the first heat exchanger function as a condenser and an evaporator, respectively. The four-way selector valve 2 is switched to change the flow of the refrigerant, thereby performing cooling and heating. When the outdoor air conditioner 100 is a special refrigeration machine, the four-way selector valve 2 is not required. When the outdoor air conditioner 100 is a heating dedicated machine, the four-way selector valve 2 may be provided for defrosting operation.

The refrigerant used in the outdoor air conditioner 100 is, for example, a single R32 refrigerant or a mixed refrigerant containing R32. Examples of the mixed refrigerant containing R32 include R452B, R410A, R454B, and HFO mixed refrigerant. In R452B, R32 accounted for 67.0 wt%, R125 accounted for 7.0 wt%, and R1234yf accounted for 26.0%. In R410A, R32 makes up 50 wt% and R125 makes up 50 wt%. In R454B, R32 accounted for 72.5 wt% and R1234yf accounted for 27.5 wt%. As the HFO mixed refrigerant, there are a mixed refrigerant in which HFO-1123 accounts for 45.0 wt%, R32 accounts for 55.0 wt%, and a mixed refrigerant in which HFO-1123 accounts for 40.0 wt%, R32 accounts for 60.0 wt%.

(2) Arrangement of respective devices of outdoor air conditioner 100

Fig. 2 is a perspective view showing an external appearance of the outdoor air conditioner 100, and fig. 3A and 3B are perspective views and longitudinal sectional views showing a main internal structure with a decorative panel, a part of a pillar, and the like removed.

In the air conditioning apparatus 100 of the present embodiment, the housing 10 houses the compressor 1, the first heat exchanger 6, the second heat exchanger 3, the first fan 7, the second fan 4, and electrical components (not shown). The housing 10 has a rectangular parallelepiped shape whose horizontal section is approximately square. The horizontal cross section may be polygonal or rectangular. The horizontal cross-section may also be circular. The housing 10 has four support columns 11a to 11d, a top plate 13, and a bottom plate 12. The space inside the housing 10 is partitioned by the

intermediate plates

14 and 16 and the

water receiving trays

15 and 17. The four support columns 11a to 11d are vertically arranged at four corners of a horizontal square in plan view. The top plate 13, the bottom plate 12, the

intermediate plates

14, 16, and the

drip trays

15, 17 are fixed to the four pillars 11a to 11 d.

Refrigerant pipes and electric wiring are collectively arranged inside or around one support column 11d of the four support columns 11a to 11 d. In other words, the refrigerant pipes and the electric wires connecting the upper and lower sides of the outdoor air conditioner 100 are not arranged uniformly in the four columns or are distributed and arranged in a uniform order in the four columns, and more refrigerant pipes and electric wires are arranged in one column 11d than in the other columns.

A first blowout port 29, which is a circular opening, is formed in the center of the top plate 13.

An upper decorative plate 201 and a lower decorative plate 202 are attached to four side surfaces 20a to 20d and 20a to 20d on the outer side of the housing 10. The

decorative plates

201 and 202 have a large number of holes formed in a grid pattern, and air can flow through the holes. In particular, since the portions of the

decorative plates

201 and 201 disposed on the front surfaces of the

heat exchangers

3 and 6 are formed as air inlets, a large number of holes are formed.

Inside the casing 10, the first fan 7, the first heat exchanger 6, the second fan 4, the second heat exchanger 3, and the compressor 1 are arranged in this order from above. The first fan 7 circulates air to the first heat exchanger 6. The second fan 4 circulates air to the second heat exchanger 3. Not only the compressor 1 but also the accumulator 8 and a container for collecting drain water are disposed between the bottom plate 12 and the drain pan 17.

Four casters are mounted further below the base plate 12. Therefore, the outdoor air conditioner 100 can move.

The first fan 7 is a propeller fan. The first fan 7 may be a turbo fan or a sirocco fan. The first fan 7 is attached so that air can be discharged upward from the first outlet 29 in the center of the top plate 13. The first fan 7 is driven by a first motor 7 a. A mesh-like plate 22 is disposed at the first blowout port 29 of the top plate 13.

The first heat exchanger 6 includes heat transfer tubes through which a refrigerant flows and metal fins that promote heat exchange between the refrigerant and air. In the present embodiment, the first heat exchanger 6 is a heat source side heat exchanger. The first heat exchanger 6 is disposed on all of the four side surfaces 20a to 20d of the casing 10. The refrigerant need not pass through all of the faces. For example, the refrigerant may be distributed and circulated by being divided into two so as to have two side surfaces 20a to 20 d. In addition, it is not necessary to dispose the first heat exchanger 6 on all four surfaces. May be arranged on only three surfaces, two surfaces, or one surface.

The second fan 4 is a turbo fan. The second fan 4 may also be a propeller fan, a sirocco fan. The second fan 4 is attached between the water receiving tray 15 and the intermediate plate 16 so as to be hung from the center of the water receiving tray 15. The second fan 4 is driven by a second motor (not shown). The second motor is driven by a motor different from the motor 7a of the first fan 7 and can be independently controlled.

The second heat exchanger 3 includes heat transfer tubes through which the refrigerant flows while exchanging heat with air, and metal fins that promote heat exchange between the refrigerant and air. In the present embodiment, the second heat exchanger 3 is a use-side heat exchanger. The second heat exchanger 3 is disposed on all of the four side surfaces 20a to 20d of the casing 10. The refrigerant need not pass through all of the faces. For example, the refrigerant may be distributed and circulated by being divided into two so as to have two side surfaces 20a to 20 d. It is not necessary to dispose the second heat exchanger 3 on all of the four side surfaces 20a to 20 d. May be arranged on only three surfaces, two surfaces, or one surface.

Similar to the compressor 1, electrical components (not shown) are disposed in a space surrounded by the support columns 11a to 11d, the bottom plate 12, and the water pan 17. The electrical component may be disposed in other places. The electrical component is a part of the control section. The control unit controls the compressor motor, the fan motor, the expansion valve, and the like. The electrical component includes an electronic device such as a circuit board.

(3) Air flow structure of outdoor air conditioner 100 and description of air flow

(3-1) air flow on the second Heat exchanger 3 side

The air flow on the second heat exchanger 3 side will be described in detail with reference to the drawings. Fig. 3A and 3B show the main air flow in the outdoor air-conditioning apparatus 100 according to the present embodiment by arrows.

When the second fan 4 is operated, air is drawn into the space between the intermediate plate 16 and the water receiving tray 17 through the decorative plate 202 from the outside of the outdoor air-conditioning apparatus 100 and the front surface of the second heat exchanger 3 on the four side surfaces 20a to 20 d. The air passes through the second heat exchanger 3 and exchanges heat with the refrigerant in the second heat exchanger 3. The air heated or cooled by the refrigerant passes through the second fan 4, and is blown out laterally to the external space from the air outlets 31a to 31d provided on the four side surfaces 20a to 20d in the space between the water receiving tray 15 and the intermediate plate 16. Here, the lateral direction is defined as the horizontal direction ± 30 °. The outdoor air conditioner 100 of the present embodiment includes the damper 402, and the damper 402 can change the wind direction at an angle larger than ± 30 ° from the horizontal direction. The air outlets 31a to 31d are holes formed in the casing 10. Dampers 402 are disposed in the air outlets 31a to 31 d. The damper 402 can change the wind direction up and down. The damper 402 may be completely closed only on one of the side surfaces 20a to 20d of the casing 10, and the blowing of air may be prohibited only in a specific number of specific directions.

(3-2) air flow on the first Heat exchanger 6 side

When the first fan 7 is operated, air is drawn into the space between the intermediate plate 14 and the water collector 15 from the front surface of the exterior of the outdoor air-conditioning apparatus 100 where the first heat exchanger 6 is disposed, through the decorative plate 201. Further, the external gas is introduced at the four side faces 20a to 20 d. Air introduced from the outside passes through the first heat exchanger 6 to exchange heat with the refrigerant. The air heated or cooled by the refrigerant is blown upward inside the outdoor air-conditioning apparatus 100 to an upper portion outside the outdoor air-conditioning apparatus 100 through the first fan 7 and the first outlet 29 in the center of the top plate 13.

(4) Drainage path for outdoor air conditioner 100

(4-1) drainage of Water accumulated in the Water tray 15

The drainage of water accumulated in the drain pan 15 will be described with reference to the drawings. Fig. 6 is a diagram showing a drainage path of water accumulated in the water receiving tray 15. Fig. 6 shows a state before the first drip tray 15 and the second drip tray 17 are inserted into the support column 11 b. When the outdoor air conditioner 100 is used, these water receiving trays are inserted into the support posts 11 b.

The first heat exchanger 6 is disposed in a space below the intermediate plate 14 above the drain pan 15. Therefore, water from the heat exchanger 6, water generated from a space including the heat exchanger 6, water flowing into the space from the outside, and the like may be accumulated in the water receiving tray 15. As shown by the arrows in fig. 6, the outdoor air conditioning apparatus 100 of the present embodiment includes a first drain path 62 that discharges water accumulated in the water collector 15. The drip tray 15 has a notch in the end wall, and water flows from the notch to the first drain path 62 of the support 11 b. In the present embodiment, the water flowing through the first drain path 62 of the support column 11b flows into the second drain pan 17. The water flowing into the second drain pan 17 is reused in the outdoor air conditioner, stored in a container, or discharged to the outside of the casing 10.

As shown in fig. 5C, the second drain passage 61 and the first drain passage 62 are formed in the column 11 b. The first drain path 62 enables water to flow from the first drip tray 15 to the second drip tray 17, respectively. As explained below, the second drainage channel 61 supplies water to flow from the ceiling below the column 11 b.

The first drainage channel 62 is not disposed in the support 11d in which the refrigerant piping and the electric wiring are collectively provided, but is disposed in any one or more or all of the other three supports 11a to 11 c. The same applies to the second drain passage 61.

(4-2) about drainage of water flowing in from the upper portion of the top surface of the housing 10

With respect to the second drain passage 61 of the outdoor air conditioning apparatus 100 of the present embodiment, description will be made using the drawings. Fig. 4 is a drawing in which components are appropriately selected to facilitate understanding of the internal structure of the outdoor air-conditioning apparatus 100 and the water discharge passage 61, and fig. 5A to 5C are diagrams showing the second water discharge passage 61 in the top plate 13 or the pillar 11 b.

Since the outdoor air conditioner 100 is installed outdoors, water accumulates on the ceiling 13 due to rainfall or the like. As shown in fig. 5A or 5B, a wall 56 is formed at an end of the top plate 13, and water is guided by the wall 56. As shown in fig. 5A and 5B, the end of the top plate 13 is inserted into the upper and lower slits of the inner surface plate 52 of the pillar 11B. In a portion of the top plate 13 into which the support post 11b is inserted, a notch 57 is formed in the wall 56 of the top plate 13. Water that reaches the ceiling 13 from the outside of the outdoor air conditioning apparatus 100 is discharged below the support 11b through the notch 57 and the water discharge passage 61 in the support 11 b.

(5) Feature(s)

(5-1)

The outdoor air conditioning apparatus 100 of the present embodiment includes a compressor 1, a first heat exchanger 6, a first water pan 15, a second heat exchanger 3, a first fan 7, and a second fan 4 in one casing 10. The first water receiving tray is used for storing water from the first heat exchanger 6, water generated from a space including the first heat exchanger 6, or water flowing into the space. The space including the first heat exchanger 6 is a space surrounded by the intermediate plate 14, the first drain pan 15, and the support columns 11a to 11 d. The outdoor air conditioner 100 is formed with a first drain path 62 that discharges water accumulated in the first drain pan 15.

Since the outdoor air conditioning apparatus 100 of the present embodiment includes the first drain path 62, the inflow of water into the interior of the casing below the first drain pan is suppressed.

Here, the inside of the housing means a space surrounded by the housing, and does not include the inside of the housing itself.

Next, the problem of water accumulated in the first drain pan will be described in further detail.

First, the case during operation of the outdoor air conditioner 100 is described.

In the case where the first heat exchanger 6 functions as an evaporator, water is produced from the first heat exchanger 6 or a space containing the first heat exchanger 6. In some cases, this water flows into the interior of the housing 10, which causes a problem. In particular, in the case of the present embodiment, since the air outlet ports 31a to 31d that pass through the second heat exchanger 3 are located in the space below the first water pan 15 and above the intermediate plate 16, water may be blown out together with the blown air. In such a case, since the user feels uncomfortable, it is preferable to discharge the waste water through the first water discharge path 62 as in the present embodiment.

Next, when the first heat exchanger 6 functions as a condenser, the following configuration has a problem. Sometimes, the efficiency of the heat exchanger can be improved by applying the water produced in the evaporator to the condenser. In the outdoor air conditioner 100 of the present embodiment, the moisture generated in the second heat exchanger 3 (evaporator) is pumped up by the pump and applied to the first heat exchanger 6 (condenser), whereby the heat exchange efficiency can be improved. If all of the water applied to the condenser is not evaporated, the remaining water may be accumulated in the first drain pan 15. In this case, as in the case where the first heat exchanger 6 functions as an evaporator, there may be a problem that water accumulated in the first drain pan 15 is blown out.

Further, the outdoor air conditioner 100 has the following problem during the stop operation.

In the outdoor air conditioner 100 of the present embodiment, the air outlet 29 is formed in an upper portion of the top plate 13. The air sucked from the side surfaces 20a to 20d of the first heat exchanger 6 is blown out to the upper portion by the airflow generated by the fan 7. In this way, since the outlet port 29 is opened in the top plate 13 and a flow path of air from the suction port to the outlet port 29 is secured, water such as rainwater easily flows into the interior of the casing 10 and reaches the space around the first heat exchanger 6.

Further, since the

decorative plates

201 and 202 disposed on the side surfaces of the housing 10 are formed with a large number of holes, water may enter the housing 10 through the holes in rainy weather.

This water enters the housing 10 and may adversely affect the equipment. Here, the adverse effect on the equipment means that water enters the inside of the equipment to cause damage to the equipment, for example. The inside of the equipment refers to the inside of electronic equipment such as electrical components, the inside of a compressor motor, the inside of a fan motor, and the like.

In the outdoor air conditioning apparatus 100 according to the present embodiment, water is collected in the first drain pan 15 and discharged by the first drain path 62, thereby preventing water from entering the inside of the casing 10 below the first drain pan 15.

(5-2)

In the outdoor air conditioner 100 of the present embodiment, as shown in fig. 6, a wall 53 is formed at an end portion of the first drain pan 15 to store water. Further, inner panels 52 of columns 11a to 11c are provided with slits into which first drain pan 15 is inserted. A notch 54 is formed at the wall 53 of the portion into which the first drip tray 15 is inserted. In the outdoor air conditioning apparatus 100 of the present embodiment, since the notch 54 is formed in the first drain pan 15, the water accumulated in the first drain pan 15 can be smoothly discharged.

(5-3)

In the outdoor air conditioning apparatus 100 of the present embodiment, the casing 10 has support columns 11a to 11d extending in the vertical direction. Further, first drain passages 62 are formed in the support columns 11a to 11 c.

In the outdoor air conditioning apparatus 100 of the present embodiment, the first drainage channel 62 is formed in the support columns 11a to 11d, and therefore, water can be prevented from flowing into the space surrounded by the support columns below the first drainage tray 15.

In the outdoor air-conditioning apparatus 100 according to the present embodiment, the first drain passage 62 is not formed in all of the four support columns 11a to 11d, but the first drain passage 62 is formed in a part of the support columns 11a to 11 d. In other words, the first drain passage 62 is not formed in the support 11d, but formed in the three supports 11a to 11 c. In this way, a space for arranging the electric wiring and the refrigerant piping is created in the support 11d where the first drainage channel 62 is not formed. Further, the first drainage channel 62 can be prevented from exchanging heat with the refrigerant pipe. When the drain of the first drain path 62 leaks, damage to the harness can be avoided.

(5-4)

The outdoor air conditioning apparatus 100 of the present embodiment further includes a second drain pan 17. The second water receiving tray 17 is used for storing water in the space including the second heat exchanger 3. Here, the water accumulated in the second drain pan 17 refers to water generated from the second heat exchanger or a space including the second heat exchanger, or water flowing into the space. The space including the second heat exchanger is a space surrounded by the intermediate plate 16, the second drain pan 17, and the pillars 11a to 11 d. The first drain path 62 is configured such that at least a part of the water accumulated in the first drain pan 15 can flow to the second drain pan 17 via the first drain path 62.

In the outdoor air-conditioning apparatus 100 according to the present embodiment, since the water accumulated in the first drain pan 15 is not only discharged but also made to flow to the second drain pan 17, the water can be accumulated in the casing 10 or reused.

(5-5)

The outdoor air conditioning apparatus 100 of the present embodiment further includes a water storage tank.

Since the outdoor air conditioning apparatus 100 of the present embodiment includes the reservoir tank, excess water can be stored in the reservoir tank without flowing around the casing 10.

(5-6)

The outdoor air conditioning apparatus 100 of the present embodiment further includes a pump. The water accumulated in the second drain pan 17 can be sent to the space including the first heat exchanger 6.

In particular, in the case where the second heat exchanger 3 is an evaporator, efficiency can be improved by pouring water generated at the evaporator or the periphery of the evaporator to the first heat exchanger 6 (condenser).

(5-7)

In the outdoor air conditioning apparatus 100 of the present embodiment, the second drainage channel 61 is formed in a member constituting the casing 10. The second drainage channel 61 inhibits water from flowing into the interior from the top surface of the housing. The second drainage channel 61 is a drainage channel for water such as rainwater to flow into the outdoor air conditioning apparatus 100 from the outside.

Since the outdoor air conditioning apparatus 100 of the present embodiment is provided with the second drainage channel 61, rainwater and the like can be prevented from flowing into the apparatus from the outside.

(5-8)

In the outdoor air conditioning apparatus 100 of the present embodiment, the second drainage channel 61 is formed in the column. The second drainage channel 61 inhibits water from flowing into the interior from the top surface of the housing 10. Further, different paths for the first drainage path 62 and the second drainage path 61 are formed in the columns 11a to 11 c.

In the outdoor air conditioning apparatus 100 of the present embodiment, since the first drain passage 62 and the second drain passage 61 are provided in the column, different treatments can be performed on the drains that pass through them. In other words, drainage water having different generation locations, generation times, or generation reasons can be flowed by being distinguished. Therefore, reuse and different treatments of the drain can be easily performed. For example, the following processing can be performed: rainwater flows vertically, drain water is stored in a container, and the container is removed appropriately and placed in another place. The advantages of performing the above process are as follows. In rainy weather, the surroundings are wet, and therefore, even if rainwater flows down, the appearance of the surroundings is not easily damaged. The drain water is generated regardless of the weather, but the drain water does not flow vertically, and the operation can be performed without spoiling the beauty.

(5-9)

In the outdoor air-conditioning apparatus 100 of the present embodiment, a space including the second fan 4 is disposed between a space including the first heat exchanger 6 and a space including the second heat exchanger 3. The first drain path 62 is formed outside the space including the second fan 4.

Here, the space including the second fan 4 is a space including the air outlet path of the air passing through the second heat exchanger 3 and the air outlets 31a to 31 d. When the water in the first drainage path 62 falls to the air outlets 31a to 31d, the water may be blown out together with the air by the airflow and may reach the user. In the outdoor air conditioning apparatus 100 of the present embodiment, since the first drainage channel 62 is formed outside the space including the second fan 4, water passing through the first drainage channel 62 is not blown out from the air outlets 31a to 31 d.

(5-10)

The outdoor air conditioning apparatus 100 of the present embodiment can be operated by switching between the cooling operation and the heating operation.

In the outdoor air conditioning apparatus 100 according to the present embodiment, the operation can be switched between the cooling operation and the heating operation, and therefore, the operation can be performed during a long season.

The outdoor air conditioning apparatus 100 of the present embodiment has

water receiving trays

15 and 17 corresponding to the two

heat exchangers

3 and 6, respectively, and is configured to be able to appropriately drain water to these

water receiving trays

15 and 17. Therefore, even when condensed water is generated from either of the

heat exchangers

3 and 6, the condensed water can be received by the drain pan and drained to the drain path.

(6) Modification example

(6-1) modification 1A

In the outdoor air conditioning apparatus 100 according to the first embodiment, the first drain path 62 is configured to guide drain to the second drain pan 17. In the air conditioning apparatus 100 of modification 1A, the first water discharge channel 62 is configured to discharge water to the lower portion of the support column by the support columns 11A to 11 c. The other structure is the same as that of the first embodiment.

In the outdoor air conditioning apparatus according to modification 1A, since the water accumulated in the first drain pan 15 can be discharged to the outside of the casing 10 through the first drain passage 62, the inflow of water into the inside of the casing 10 below the first drain pan 15 can be suppressed.

(6-2) modification 1B

In the outdoor air-conditioning apparatus 100 according to the first embodiment, the first drain path 62 is configured to guide drain to the second drain pan 17, and in the air-conditioning apparatus 100 according to modification 1A, the first drain path 62 is configured to drain to the lower portion of the support columns 11A to 11 c. The outdoor air conditioner according to modification 1B includes a switch that can be used by switching the above configuration.

For example, it can be used in the following manner. First, during the stop of the outdoor air conditioner, the drain of the first drain path 62 is discharged to the outside of the casing 10. In that case, the rainwater and the like are discarded to the outside. Conversely, during operation of the outdoor air conditioner, the drain of the first drain path 62 is switched to reach the second drain pan 17. In that case, the water stored in the second water receiving tray is reused or recovered to the water storage tank.

(6-3) modification 1C

In the outdoor air conditioning apparatus 100 according to the first embodiment, the notch 54 constituting a part of the first drain path 62 is formed in the first drain pan 15. In modification 1C, there is no notch, and a hole is formed in the bottom plate of the water receiving tray 15. The holes are formed up to the upper portion of the first drain path 62 of the pillars 11a to 11 c. The other structure is the same as that of the first embodiment.

As in the first embodiment, the air conditioning apparatus of modification 1C can smoothly discharge the water accumulated in the first drain pan 15.

(6-4) modification 1D

In the outdoor air conditioning apparatus 100 according to the first embodiment, a case where the

drainage passages

62 and 61 are formed in the three support columns 11a to 11c is described. In modification 1D, the

drainage passages

62 and 61 are formed only in one of the pillars 11 b. The other structure is the same as that of the first embodiment.

In this case, the same operational effects as those of the first embodiment can be obtained. On this basis, the structure is simpler, and the housing 10 can be produced at low cost.

Similarly, the

drainage passages

62 and 61 may be formed only in the two

support columns

11a and 11 c.

(6-5) modification 1E

In the outdoor air conditioning apparatus according to modification 1D, the

drainage passages

62 and 61 are formed only in one of the support columns 11 b. In the outdoor air conditioner of modification 1E, the drainage passage 61 is formed in one of the support columns 11b, and the drainage passage 61 is formed in the other support column 11 a. The other structure is the same as that of the first embodiment.

In this case, the same operational effects as those of the first embodiment can be obtained. In addition, the structure of the support column is simpler than that of the first embodiment and modification 1D, and the housing 10 can be produced at low cost.

(6-6) modification 1F

In the first embodiment, the drainage channels 62 at the pillars 11a to 11c are located inside the pillars. In modification 1F, the first drainage channel 62 is a groove formed on the inner surface of the support columns 11a to 11 c. The other structure is the same as that of the first embodiment.

The outdoor air conditioning apparatus according to modification 1F has the same operational effects as those of the first embodiment.

In modification 1F, the first drainage channel 62 is formed on the inner surface of the pillars 11a to 11c, but may be formed on the outer surface.

Although the first water discharge passage 62 is described above, the same applies to the second water discharge passage 61.

< second embodiment >

(7) Structure of outdoor air conditioner 100a

The configuration of the outdoor air conditioning apparatus 100a according to the second embodiment is substantially the same as that of the outdoor air conditioning apparatus 100 according to the first embodiment in terms of the refrigerant circuit in fig. 1, the arrangement of the respective constituent elements in fig. 3A and 3B, and the like. The second embodiment differs from the first embodiment in the structure of the first drain path, the second drain path, and the like. Further, the outdoor air conditioner 100a according to the second embodiment is provided with a third water discharge path.

In the outdoor air-conditioning apparatus 100a according to the second embodiment, the first fan 7, the first heat exchanger 6, the second fan 4, the second heat exchanger 3, and the compressor 1 are housed in the casing 10 in this order from above, similarly to the outdoor air-conditioning apparatus 100 of fig. 3A and 3B. The housing 10 includes four support columns 11a to 11d, and includes a top plate 13, an intermediate plate 14, a first drain pan 15, an intermediate plate 16, a second drain pan 17, and a bottom plate 12 in this order from above. In addition, hereinafter, regarding these components, when symbols are used in the second embodiment, a "is marked and shown at the end as the first water tray 15 a.

Fig. 7A and 7B are perspective views for understanding the internal structure of the outdoor air-conditioning apparatus 100a, fig. 7C is a sectional view of the bottom plate 12a, fig. 8A and 8B are views of the first drain pan 15a, fig. 9A to 9D are views of the second drain pan 17A, and fig. 10 is a sectional view of the hole of the drain pan and the filter 83.

The first drain pan 15a stores water generated from the first heat exchanger 6a or a space including the first heat exchanger 6a, or water flowing into the space. In the present embodiment, the bottom surface of the first drain pan 15a is horizontal. As shown in fig. 8A and 8B, two holes 81a and 81B are formed in the bottom surface of the first drain pan 15 a. The water dropped from the

holes

81a and 81b of the first drain pan 15a is guided to the second drain pan 17a via the two first drain channels 71. The number of the first drainage channels 71 may be one, three, or four.

Each first drainage channel 71 has a hose 71 a. The hose 71a is made of a flexible material. The flexible material refers to an organic polymer material, rubber, or the like.

The second drain pan 17a stores water generated from the second heat exchanger 3a or a space including the second heat exchanger 3a, or water flowing into the space. As shown in fig. 9A and 9B, an outlet 71B of the first drain path 71 (hose 71a) is disposed above the second drain pan 17 a. The water accumulated in the first drain pan 15a flows out of the outlet 71b via the first drain channel 71 (hose 71a), falls onto the bottom surface of the second drain pan 17a, and accumulates in the second drain pan 17 a.

As shown in fig. 9A, 9B, and 9C, the bottom surface of the second drain pan 17a is inclined so that the side on which the base 82a is disposed is the lowest and the side opposite thereto is the highest. The hole 81c of the third drainage channel 73 is disposed near the lowermost edge of the bottom surface of the second drain pan 17 a. The inflow portion of the second drain pan 17a into which the water flows from the outlet 71b of the first drain channel 71 toward the second drain pan 17a is at a height equal to or higher than a portion where the hole 81c of the third drain channel 73 is formed. In the present embodiment, the inflow portion of the bottom surface of the second drip tray 17a, into which water flows from the outlet 71b of one first drainage channel 71, is higher than the portion forming the hole 81c of the third drainage channel 73, and the inflow portion of the bottom surface of the second drip tray 17a, into which water flows from the outlet 71b of the other first drainage channel 71, is located at the same height as the portion forming the hole 81c of the third drainage channel 73. Therefore, the water accumulated in the second drain pan is easily collected to the portion where the hole 81c is formed according to the inclination. The water collected in the hole 81c is discharged to the outside of the housing through the third drainage channel 73.

The third drainage path 73 has a hose 73 a. The hose 73a is made of a flexible material. The flexible material refers to an organic polymer material, rubber, or the like.

As shown in fig. 7A, 7B, and 7C, the third drainage channel 73 (hose 73a) passes through the hole 81d of the bottom plate 12a to the lower portion of the bottom plate 12 a. The hose 73a is further connected to another hose 74 at a lower portion of the bottom plate 12 a. The water accumulated in the second drain pan 17a is drained to the ground below the housing or an appropriate place guided by the hose 74 through the third drainage channel 73 and the hose 74.

As shown in fig. 7A, 7B, 9A, and 9D, pedestals 82a to 82c are disposed on the second drain pan 17A. The second heat exchanger 3a is disposed on the bases 82a to 82 c. As described above, the bottom surface of the second drain pan 17a is inclined. The upper surfaces of the pedestals 82a to 82c are leveled by correcting the inclination. The upper surfaces of the three bases 82a to 82c are arranged to be located at the same height. Therefore, by disposing the second heat exchanger 3a on the base, the second heat exchanger 3a can be disposed horizontally.

As shown in fig. 10, a filter 83 may be disposed in the

holes

81a and 81b of the first drain pan 15a and the hole 81c of the second drain pan 17 a. The filter 83 includes an annular portion at the peripheral portion and a mesh-like portion at the central portion. In fig. 10, a projection portion at the lower portion of the annular portion is fitted into the hole and fixed to the

drip trays

15a and 17 a. In the present embodiment, the filter 83 is made of metal. The metal includes copper or iron. The filter 83 passes liquid such as water at the mesh-shaped portion of the central portion, and prevents solid matter such as garbage from flowing out. The filter 83 prevents the first drain passage 71 and the third drain passage 73 from being clogged with solid matter and deteriorating the drain.

(8) Features of the second embodiment

Like the outdoor air conditioning apparatus 100 of the first embodiment, the outdoor air conditioning apparatus 100a of the second embodiment has the features of (5-1), (5-4), (5-10), and the like. In addition, the following features are provided.

(8-1)

In the outdoor air-conditioning apparatus 100a according to the second embodiment, the second heat exchanger 3A as a use-side heat exchanger, the second fan 4, and the air outlets 31a to 31d of the outdoor air-conditioning apparatus 100a are arranged below the first water receiving pan 15a, similarly to the outdoor air-conditioning apparatus 100 according to the first embodiment (see fig. 3A and the like). Therefore, if the water accumulated in the first drain pan flows vertically into the housing, the following problems may occur: the water flowing down vertically is blown out from the outlet by the second fan. Therefore, in the present embodiment, the first drain passage 71 is provided to allow the drain to flow through the hose 71a, thereby preventing the drain from being splashed by the wind of the second fan 4.

Further, by using the hose 71a for the first drainage channel 71, the first drainage channel can be flexibly arranged. This is because the hose has flexibility.

(8-2)

The outdoor air conditioning apparatus 100a according to the second embodiment further includes a second drain pan 17a and a third drain path 73. The second drain pan 17a stores water in the space including the second heat exchanger 3 a. The space including the second heat exchanger 3a is a space including the second heat exchanger and partitioned by a housing and a partition plate (an intermediate plate, a water receiving tray, or the like) vertically dividing the interior of the housing. The third drain passage 73 discharges the water accumulated in the second drain pan 17a to the outside of the housing.

Since the outdoor air conditioning apparatus 100a according to the second embodiment includes the third drainage channel 73 that drains the water accumulated in the second drain pan 17a to the outside of the casing, entry of water into the space below the second drain pan 17a inside the casing can be suppressed.

Further, since the third drainage channel 73 is constituted by the hose 73a, the third drainage channel 73 can be flexibly disposed.

(8-3)

In the bottom surface of the second drain pan 17a according to the second embodiment, the portion into which the supply water flows from the first drain channel 71 is inclined so as to be lower than the portion in which the third drain channel 73 is formed.

In the outdoor air-conditioning apparatus 100a according to the second embodiment, the second drain pan 17a is inclined and the portion where the third drain path 73 is formed is low, so that water is collected in the third drain path 73 and is easily drained.

(8-4)

In the outdoor air conditioning apparatus 100a according to the second embodiment, the pedestals 82a to 82c are formed in the second drain pan 17 a. The pedestals 82a to 82c support the second heat exchanger 3a and support the second heat exchanger 3a in a horizontal state.

In the outdoor air-conditioning apparatus 100a according to the second embodiment, since the bases 82a to 82c for supporting the second heat exchanger 3a are formed in the second drain pan 17a, the second heat exchanger 3a can be horizontally supported on the second drain pan 17a that is inclined.

(9) Modification example

(9-1) modifications 1A and 1B

There are three bases 82a to 82c of the second drain pan 17a according to the second embodiment. The number of the bases may be two, four or more as long as the second heat exchanger 3c can be horizontally supported.

As shown in fig. 11, the drain pan 17b of modification 1A includes four pedestals 82a to 82 d. As shown in fig. 12, the drain pan 17c according to modification 1B includes two

bases

82a and 82 d. In any case, the upper surfaces of the plurality of susceptors are disposed horizontally and at the same height. Therefore, by disposing the second heat exchanger 3a on the base, the second heat exchanger 3a can be disposed horizontally. The configuration of the outdoor air conditioner of modification 1A or 1B other than the base is the same as that of the second embodiment.

(9-2) modification 1C

The bottom surface of the second drip tray 17a of the second embodiment is substantially quadrangular, and is inclined so as to be lower along the side of the base 82a and higher along the side opposite to the side. In modification 1C, the bottom surface of the second drain pan 17a is inclined so that the angle of the hole 81C of the third drain path 73 is low and the angle opposite to the angle is high. Other structures such as those in which the upper surfaces of the bases 82a to 82c are horizontal are the same as those in the second embodiment.

In modification 1C, the inflow portion of the bottom surface of the second drain pan 17a, into which the water flows from the outlets 71b of the two first drain paths 71, is higher than the portion forming the hole 81C of the third drain path 73. Therefore, in the case of modification 1C, water accumulated in the second drain pan is more likely to be concentrated in the portion where the hole 81C is formed and to be easily discharged to the third drainage channel 73, as compared with the first embodiment.

While the embodiments of the present disclosure have been described above, it should be understood that various changes in form and details may be made therein without departing from the spirit and scope of the present disclosure as set forth in the appended claims.

Description of the symbols

100. 100a outdoor air conditioner

1 compressor

2 four-way change valve

3. 3a second Heat exchanger

4 second fan

5 expansion valve

6a first heat exchanger;

7 first fan

8 storage tank

10 outer casing

11 a-11 d support

12. 12a bottom plate

13 Top plate

14. 16 middle plate

15. 15a first water pan

17. 17a second water pan

54. 57 gap

61 second drainage way

62. 71 first water drainage channel

73 third drainage way

71a, 73a hose

81 a-81 c holes

82 a-82 c base

83 Filter

Documents of the prior art

Patent document

Patent document 1: japanese patent laid-open No. 2006-242510.

Claims

1. An outdoor air conditioning unit (100, 100a) comprising:

a compressor (1);

a first heat exchanger (6) which is any one of an evaporator and a condenser;

a first water receiving tray (15, 15a) for storing water generated by the first heat exchanger or a space containing the first heat exchanger, or water flowing into the space;

a first fan (7) for flowing air through the first heat exchanger;

a second heat exchanger (3) which is the other of the evaporator and the condenser and is disposed below the first heat exchanger;

a second fan (4) for causing air to flow through the second exchanger; and

a housing (10) that houses the compressor, the first heat exchanger, the first fan, the first water pan, the second heat exchanger, and the second fan,

the outdoor air-conditioning apparatus is characterized in that,

the outdoor air conditioner is provided with first drainage channels (62, 71) for discharging water accumulated in the first water receiving tray.

2. An outdoor air conditioning unit according to claim 1,

holes (81a, 81b) or a notch (54) constituting a part of the first drainage channel are formed in the first drain pan.

3. Outdoor air-conditioning unit according to claim 1 or 2,

the housing has support columns (11 a-11 d) extending in the vertical direction,

the first drainage passage is formed in the pillar.

4. Outdoor air-conditioning unit according to claim 1 or 2,

the first drainage channel (71) is provided with a hose (71a) connected with the first water pan (15 a).

5. An outdoor air-conditioning apparatus according to any one of claims 1 to 4,

the first drainage path is configured to: at least a part of the water accumulated in the first water receiving tray can be discharged to the outside of the housing through the first drain passage.

6. An outdoor air-conditioning apparatus according to any one of claims 1 to 5,

the outdoor air conditioning device also comprises a second water pan (17, 17a) for accumulating water in the space containing the second heat exchanger.

7. An outdoor air-conditioning apparatus according to claim 6,

the first drainage path is configured to: at least a part of the water accumulated in the first drain pan can flow to the second drain pan through the first drain passage.

8. An outdoor air-conditioning apparatus according to claim 7,

the outdoor air conditioner is also provided with a third water drainage channel which discharges water accumulated in the second water pan to the outside of the shell.

9. An outdoor air conditioning unit according to claim 8,

the third drainage path is provided with a hose connected with the second water pan.

10. An outdoor air conditioning unit according to claim 9,

the bottom surface of the second drip pan, which receives water, is inclined such that a portion in which the third drainage channel is formed is lower than a portion into which water from the first drainage channel flows.

11. An outdoor air conditioning unit according to claim 10,

bases (82 a-82 c) for supporting the second heat exchanger are further formed on the second water receiving tray, and the bases support the second heat exchanger in a horizontal state.

12. Outdoor air-conditioning unit according to claim 6 or 7,

the outdoor air conditioning device also comprises a water storage tank, and the water storage tank can store the water stored in the second water pan.

13. An outdoor air conditioning unit according to any one of claims 6, 7, and 12,

the outdoor air conditioner further includes a pump capable of sending the water stored in the second water receiving tray to a space including the first heat exchanger.

14. An outdoor air-conditioning apparatus according to any one of claims 1 to 13,

a second drainage channel (61) is formed in a member constituting the housing, and the second drainage channel inhibits water from flowing into the housing from the top surface of the housing.

15. An outdoor air-conditioning apparatus according to claim 3,

a second drainage channel is formed in the strut, the second drainage channel inhibits water from flowing into an internal space from above the shell,

different paths for the first drainage path and the second drainage path are formed at the strut.

16. An outdoor air-conditioning apparatus according to any one of claims 1 to 3,

a space including the second fan is arranged between a space including the first heat exchanger and a space including the second heat exchanger,

the first drain path is formed outside a space including the second fan.

17. An outdoor air-conditioning apparatus according to any one of claims 1 to 16,

the outdoor air conditioner is capable of operating while switching between cooling operation and heating operation.