JP6733764B2 - Outdoor air conditioner - Google Patents

Description

An air conditioner used outdoors.

An air conditioner is known in which a utilization side heat exchanger and a heat source side heat exchanger are provided in one housing. A conventional air conditioner is generally used for cooling and dehumidifying a local space in a room. For example, Japanese Patent Laid-Open No. 2006-242510 discloses an air conditioner that is provided with a condenser and an evaporator in one housing and is supposed to perform local cooling and dehumidification. There is.

In recent years, the number of outdoor events has increased, and the demand for outdoor air conditioners such as outdoor event venues and terrace seats at restaurants has increased. The outdoor air conditioner includes two heat exchangers, an evaporator and a condenser, in one casing. In the vicinity of the heat exchanger arranged in the upper part, water generated due to the heat exchanger or water invading from the outside into the vicinity of the heat exchanger is considered, but if these water is not appropriately treated, Water may get inside the device and adversely affect it.

The outdoor air conditioner according to the first aspect is an air conditioner used outdoors. The outdoor air conditioner includes a compressor, a first heat exchanger, a first drain pan, a first fan, a second heat exchanger, a second fan, and a casing. The first heat exchanger is one of the evaporator and the condenser, and the second heat exchanger is the other. The second heat exchanger is arranged below the first heat exchanger. The first drain pan stores water generated from the first heat exchanger or a space containing the first heat exchanger, or water flowing into the space. The first fan is for passing air through the first heat exchanger. The second fan is for passing air through the second heat exchanger. The casing accommodates the compressor, the first heat exchanger, the first drain 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 drain pan.

The space that includes the first heat exchanger means a space that includes the first heat exchanger and is partitioned by a casing and a partition plate (intermediate plate, drain pan, etc.) that vertically divides the interior of the casing.

The casing preferably has a column, a bottom plate, and a top plate.

Since the outdoor air conditioner of the first aspect has the first drainage channel, the inflow of water into the inside of the casing below the first drain pan is suppressed.

An outdoor air conditioner according to a second aspect is the air conditioner according to the first aspect, in which the first drain pan is provided with a hole or a notch that is a part of the first drainage channel.

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

An outdoor air conditioner of a third aspect is the outdoor air conditioner of the first aspect or the second aspect , and the casing has a pillar extending in the vertical direction. And the 1st drainage channel is formed in the pillar.

In the outdoor air conditioner of the third aspect, since the first drainage channel is formed in the pillar, the inflow of water is suppressed in the space surrounded by the pillar below the first drain pan.

An outdoor air conditioner according to a fourth aspect is the outdoor air conditioner according to the first aspect or the second aspect,
The first drainage channel has a hose connected to the first drain pan.

In the outdoor air conditioner of the fourth aspect, since the first drainage channel has the hose, the first drainage channel can be flexibly arranged.

An outdoor air conditioner according to a fifth aspect is the outdoor air conditioner according to any one of the first to fourth aspects, wherein the first drainage channel has at least a part of water accumulated in the first drain pan. It is arranged so that it can be discharged to the outside of the casing via one drainage channel.

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, so that excess water is rarely stored inside the casing.

An outdoor air conditioner according to a sixth aspect is the outdoor air conditioner according to any one of the first to fifth aspects, further including a second drain pan. The second drain pan stores water in the space containing the second heat exchanger. The space including the second heat exchanger means a space that includes the second heat exchanger and is partitioned by a casing and a partition plate (intermediate plate, drain pan, etc.) that divides the inside of the casing into upper and lower parts.

Since the outdoor air conditioner of the sixth aspect has the second drain pan, it is possible to store water generated in the second heat exchanger, rainwater that has entered the second heat exchanger, and the like.

An outdoor air conditioner according to a seventh aspect is the outdoor air conditioner according to the sixth aspect, wherein the first drainage channel is configured such that at least a part of the water accumulated in the first drain pan passes through the first drainage channel to the second drainage channel. It is arranged so that it can flow to the drain pan.

In the outdoor air conditioner of the seventh aspect, the water accumulated in the first drain pan is not simply drained but is caused to flow in the second drain pan, so that the water can be accumulated inside the casing or reused.

An outdoor air conditioner according to an eighth aspect is the outdoor air conditioner according to the seventh aspect, further including a third drainage channel. The third drainage channel discharges the water accumulated in the second drain pan to the outside of the casing.

The outdoor air conditioner of the eighth aspect has the third drainage channel for discharging the water accumulated in the second drain pan to the outside of the casing, so that the infiltration of water into the space inside the casing below the second drain pan. Can be suppressed.

The outdoor air conditioner of the ninth aspect is the outdoor air conditioner of the eighth aspect, and the third drainage channel has a hose connected to the second drain pan.

In the outdoor air conditioner of the ninth aspect, since the third drainage channel has the hose, it is possible to flexibly arrange the third drainage channel.

An outdoor air conditioner according to a tenth aspect is the outdoor air conditioner according to the ninth aspect, in which a bottom surface of the second drain pan that receives water has a third drainage channel rather than a portion into which water from the first drainage channel flows. Is inclined so that the portion where is formed is low.

The outdoor air conditioner of the tenth aspect is configured such that the second drain pan is inclined and the portion where the third drainage channel is formed is lowered, so that water collects in the third drainage channel. , Is easily discharged.

The outdoor air conditioner of the eleventh aspect is the outdoor air conditioner of the tenth aspect, and a pedestal is formed on the second drain pan. The pedestal supports the second heat exchanger and horizontally supports the second heat exchanger.

In the outdoor air conditioner of the eleventh aspect, since the pedestal that supports the second heat exchanger is formed in the second drain pan, the second heat exchanger is leveled on the inclined second drain pan. Can support.

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

Since the outdoor air conditioner of the twelfth aspect is provided with the water storage tank, it is possible to store excess water in the water storage tank without draining it around the casing.

An outdoor air conditioner according to a thirteenth aspect is the outdoor air conditioner according to any of the sixth aspect, the seventh aspect, and the twelfth aspect, further including a pump. It is possible to send the water accumulated in the second drain pan to the space containing the first heat exchanger.

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

An outdoor air conditioner according to a fourteenth aspect is the outdoor air conditioner according to any of the first to thirteenth aspects, wherein a second drainage channel is formed in a member that constitutes the casing. The second drainage channel suppresses the inflow of water from the top surface of the casing to the inside.

In the outdoor air conditioner of the fourteenth aspect, since the second drainage channel is formed, the inflow of water from the outside such as rainwater into the inside of the apparatus can be suppressed.

An outdoor air conditioner according to a fifteenth aspect is the outdoor air conditioner according to the third aspect, in which a second drainage channel is formed on the column. The second drainage channel suppresses the inflow of water from the top surface of the casing to the inside. Furthermore, different paths for the first drainage channel and the second drainage channel are formed in the column.

In the outdoor air conditioner of the fifteenth aspect, since the pillar has the first drainage channel and the second drainage channel, it is possible to perform different treatments on the wastewater passing through each.

An outdoor air conditioner according to a sixteenth aspect is the outdoor air conditioner according to any one of the first aspect to the third aspect, in which a space including the first heat exchanger and a space including the second heat exchanger are included. A space that includes the second fan is disposed therebetween. The first drainage channel is formed outside the space containing the second fan.

Here, the space containing the second fan means a blowout path and a blowout port of air passing through the second heat exchanger. When the water in the first drainage channel falls into this outlet, it may be blown out together with the air due to the air flow and hit the user. In the outdoor air conditioner of the sixteenth aspect, since the first drainage channel is formed outside the space containing the second fan, water passing through the first drainage channel may be blown out from the outlet. Absent.

An outdoor air conditioner of a seventeenth aspect is the outdoor air conditioner of any of the first to sixteenth aspects, and can be operated by switching between cooling operation and heating operation.

The outdoor air conditioner of the seventeenth aspect can be used for a long season because it can be operated by switching between cooling operation and heating operation.

The figure which shows the refrigerant circuit of the outdoor air conditioner 100 of 1st Embodiment. The external appearance perspective view of the outdoor air conditioner 100 of 1st Embodiment. The perspective view which shows the internal structure of the outdoor air conditioner 100 of 1st Embodiment. FIG. 3 is a vertical cross-sectional view showing the internal configuration of the outdoor air conditioner 100 of the first embodiment. The perspective view which shows the internal structure of the outdoor air conditioner 100 of 1st Embodiment, and the 2nd drainage channel 61. The figure which shows the structure before the top plate 13 and support|pillar 11b of 1st Embodiment before assembling. The figure which shows the structure after the assembly of the top plate 13 and support|pillar 11b of 1st Embodiment. The figure which shows the 2nd drainage channel 61 and the 1st drainage channel 62 in the support|pillar 11b of 1st Embodiment. The figure which shows the 1st drainage channel 62 of the outdoor air conditioning apparatus 100 of 1st Embodiment. The perspective view which shows the internal structure of the outdoor air conditioner 100a of 2nd Embodiment. The perspective view which shows the internal structure of the outdoor air conditioner 100a of 2nd Embodiment seen from the direction different from FIG. 7A. Sectional drawing of the hole 81d of the bottom plate 12a and 3rd drainage channel 73 of 2nd Embodiment. The top view of the drain pan 15a of 2nd Embodiment. The II sectional view of the drain pan 15a of 2nd Embodiment. The top view of the drain pan 17a of 2nd Embodiment. II-II sectional drawing of the drain pan 17a of 2nd Embodiment. III-III sectional drawing of the drain pan 17a of 2nd Embodiment. IV-IV sectional drawing of the drain pan 17a of 2nd Embodiment. Sectional drawing of the holes 81a-81c of the drain pans 15a and 17a of 2nd Embodiment, and the filter 83. The top view of the drain pan 17b of the modification 2A. The top view of the drain pan 17c of the modification 2B.

<First Embodiment>
(1) Configuration of Refrigerant Circuit of Outdoor Air Conditioner 100 FIG. 1 shows a refrigerant circuit of the outdoor air conditioner 100 of the first embodiment, and FIG. 2 is a perspective view of its appearance. The outdoor air conditioner of the present embodiment is an air conditioner that is arranged outdoors and uses a heat pump to perform outdoor heating, cooling, dehumidification, and the like. Here, the outdoor means a space exposed to the outside air. For example, it may be a place without a roof such as a park or an outdoor stadium, an outdoor space with a roof, an arbor, or a place such as a veranda.

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

The outdoor air conditioner 100 of the present embodiment is an air conditioner that includes the entire refrigerant circuit as shown in FIG. 1 in one casing 10. As shown in FIG. 1, the outdoor air conditioner 100 includes a compressor 1, an accumulator 8, a four-way switching valve 2, a second heat exchanger 3, an expansion valve 5, and a first heat exchanger 6. These devices are connected by piping, and the refrigerant circulates through the devices to perform 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, the second heat exchanger 3 and the first heat exchanger 6 of this embodiment are both heat exchangers that exchange heat with the refrigerant and air.

In the case of cooling and dehumidifying, 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. Cooling and heating are performed by changing the flow of the refrigerant by switching the four-way switching valve 2. When the outdoor air conditioner 100 is a cooling-only machine, the four-way switching valve 2 is unnecessary. When the outdoor air conditioner 100 is a dedicated heating device, the four-way switching valve 2 may be provided for defrost operation.

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

(2) Arrangement of each device of the outdoor air conditioner 100 FIG. 2 is a perspective view of the appearance of the outdoor air conditioner 100, and FIG. 2 is a perspective view showing the main internal configuration by removing the decorative plate, some of the columns, and the like. 3A and 3B are vertical sectional views.

In the air conditioner 100 of this embodiment, the compressor 1, the first heat exchanger 6, the second heat exchanger 3, the first fan 7, the second fan 4, and the electrical components (not shown) are provided in the casing 10. ) Is housed. The casing 10 has a rectangular parallelepiped shape whose horizontal cross section is substantially square. The horizontal cross section may be polygonal or rectangular. It may be circular. The casing 10 has four columns 11a to 11d, a top plate 13 and a bottom plate 12. The space inside the casing 10 is partitioned by intermediate plates 14 and 16 and drain pans 15 and 17. The four columns 11a to 11d are vertically arranged at the four corners of a square that is horizontal when viewed from above. The top plate 13, the bottom plate 12, the intermediate plates 14 and 16, and the drain pans 15 and 17 are fixed to the four columns 11a to 11d.

Refrigerant piping and electric wiring are intensively arranged inside or around one of the four columns 11a to 11d. In other words, the refrigerant pipes and electrical wiring that connect the upper and lower sides of the outdoor air conditioner 100 are not evenly distributed over the four columns or evenly distributed in a uniform manner, but on one column 11d, More refrigerant pipes and electric wirings are arranged than other columns.

A first outlet 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 the four side surfaces 20a to 20d 20a to 20d on the outer side of the casing 10. The decorative plates 201 and 202 each have a large number of holes formed in a mesh shape, and air can flow through the holes. In particular, since the portions of the decorative plates 201 and 202 arranged on the front surfaces of the heat exchangers 3 and 6 serve as air inlets, a large number of holes are formed.

Inside the casing 10, a first fan 7, a first heat exchanger 6, a second fan 4, a second heat exchanger 3, and a compressor 1 are arranged in order from the top. The first fan 7 allows air to flow through the first heat exchanger 6. The second fan 4 allows air to flow through the second heat exchanger 3. Between the bottom plate 12 and the drain pan 17, not only the compressor 1 but also an accumulator 8 and a tank for collecting drain water are arranged.

Four casters are attached below the bottom plate 12. Therefore, the outdoor air conditioner 100 is movable.

The first fan 7 is a propeller fan. It 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 at the center of the top plate 13. The first fan 7 is driven by the first motor 7a. The mesh-shaped plate 22 is arranged at the first outlet 29 of the top plate 13.

The first heat exchanger 6 includes a heat transfer tube 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 arranged on all of the four side surfaces 20a to 20d of the casing 10. The coolant need not pass through all sides. For example, the two side surfaces 20a to 20d may be separated into two and the refrigerant may be distributed and circulated. Further, the first heat exchanger 6 does not necessarily have to be arranged on all four surfaces. It may be arranged on three faces, two faces, or only one face.

The second fan 4 is a turbo fan. It may be a propeller fan or a sirocco fan. The second fan 4 is mounted between the drain pan 15 and the intermediate plate 16 so as to be suspended from the center of the drain pan 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 controlled independently.

The second heat exchanger 3 includes a heat transfer tube that circulates the refrigerant while exchanging heat with the air, and metal fins that promote heat exchange between the refrigerant and the air. In the present embodiment, the second heat exchanger 3 is a utilization side heat exchanger. The second heat exchanger 3 is arranged on all the four side surfaces 20a to 20d of the casing 10. The coolant need not pass through all sides. For example, the two side surfaces 20a to 20d may be separated into two and the refrigerant may be distributed and circulated. Further, the second heat exchanger 3 does not necessarily have to be arranged on all the four side surfaces 20a to 20d. It may be arranged on three faces, two faces, or only one face.

Similar to the compressor 1, the electric component (not shown) is arranged in a space surrounded by the columns 11 a to 11 d, the bottom plate 12, and the drain pan 17. The electric component may be arranged in another place. The electrical component is a part of the control unit. The control unit controls a compressor motor, a fan motor, an expansion valve, and the like. The electrical equipment includes electronic equipment such as a circuit board.

(3) Description of Air Flow in Outdoor Air Conditioner 100 and Flow of Air (3-1) Flow of Air on Second Heat Exchanger 3 Side of Second Heat Exchanger 3 Side The flow of air will be described in detail. In FIGS. 3A and 3B, main air flows in the outdoor air conditioner 100 of the present embodiment are indicated by arrows.

When the second fan 4 is operated, air flows from the outside of the outdoor air conditioner 100 to the front surface of the second heat exchanger 3 on the four side surfaces 20a to 20d via the decorative plate 202, the intermediate plate 16, and the drain pan 17. Is captured in the space between. 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 to the outside space from the outlets 31a to 31d provided on the four side faces 20a to 20d in the space between the drain pan 15 and the intermediate plate 16. It is blown out in the direction. Here, the lateral direction is defined as ±30° in the horizontal direction. The outdoor air conditioner 100 of this embodiment has the flap 402 and can change the wind direction at an angle wider than ±30° in the horizontal direction. The outlets 31a to 31d are holes formed in the casing 10. A flap 402 is arranged at each of the outlets 31a to 31d. The flap 402 can change the wind direction up and down. It is also possible to completely close the flap 402 only on one side surface 20a to 20d of the casing 10 to seal the air blowout 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, the air is outside the outdoor air conditioner 100 and is on the front surface on which the first heat exchanger 6 is arranged. Then, it is taken into the space between the intermediate plate 14 and the drain pan 15 via the decorative plate 201. Further, the outside air is taken in on the four side surfaces 20a to 20d. The air taken in from the outside passes through the first heat exchanger 6 and exchanges heat with the refrigerant. The air heated or cooled by the refrigerant passes through the first fan 7 and the first outlet 29 in the center of the top plate 13 inside the outdoor air conditioner 100, and reaches the upper part outside the outdoor air conditioner 100. , Blown upwards.

(4) About the drainage channel of the outdoor air conditioner 100 (4-1) About drainage of water accumulated in the drain pan 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 drain pan 15. FIG. 6 shows a state before the first drain pan 15 and the second drain pan 17 are inserted into the column 11b. When the outdoor air conditioner 100 is used, these are inserted into the columns 11b.

The first heat exchanger 6 is arranged in a space above the drain pan 15 and below the intermediate plate 14. Therefore, there is a possibility that water from the heat exchanger 6, water generated from the space containing the heat exchanger 6, water flowing into the space from the outside, and the like may be accumulated in the drain pan 15. The outdoor air conditioner 100 of the present embodiment has a first drainage channel 62 for draining the water accumulated in the drain pan 15, as shown by the arrow in FIG. The drain pan 15 has a notch in the wall at the end, and water is allowed to flow from the notch to the first drainage channel 62 of the column 11b. In the present embodiment, the water flowing through the first drainage channel 62 of the column 11b is configured to flow into the second drain pan 17. The water flowing into the second drain pan 17 is reused inside the outdoor air conditioner, stored in a tank, or drained to the outside of the casing 10.

As shown in FIG. 5C, the column 11b is divided in its interior to form a second drainage channel 61 and a first drainage channel 62. The first drainage channel 62 can separately flow water from the first drain pan 15 to the second drain pan 17. As will be described next, the second drainage channel 61 allows water to flow from the top plate to the bottom of the column 11b.

The first drainage channel 62 is not arranged on the column 11d where the refrigerant pipes and electric wiring are concentrated, but is arranged on any one or more or all of the other three columns 11a to 11c. The same applies to the second drainage channel 61.

(4-2) Drainage of water flowing from the upper part of the top surface of the casing 10 The second drainage channel 61 of the outdoor air conditioner 100 of this embodiment will be described with reference to the drawings. FIG. 4 is a diagram in which parts are appropriately selected and drawn so that the internal configuration of the outdoor air conditioner 100 and the drainage channel 61 are easy to understand, and FIGS. 5A to 5C show the second structure of the top plate 13 or the column 11b. It is a figure which shows the drainage channel 61.

Since the outdoor air conditioner 100 is installed outdoors, water accumulates on the top plate 13 due to rainfall or the like. As shown in FIG. 5A or FIG. 5B, a wall 56 is formed at the end of the top plate 13, and water is guided by this wall 56. As shown in FIGS. 5A and 5B, the end of the top plate 13 is inserted into the upper and lower cuts of the inner surface plate 52 of the support column 11b. A notch 57 is formed in a wall 56 of the top plate 13 at a portion of the top plate 13 to be inserted into the column 11b. Water reaching the top plate 13 from the outside of the outdoor air conditioner 100 is drained below the support 11b via the cutout 57, the drainage channel 61 in the support 11b.

(5) Features (5-1)
The outdoor air conditioner 100 of the present embodiment includes a compressor 1, a first heat exchanger 6, a first drain pan 15, a second heat exchanger 3, a first fan 7, and a second fan in a single casing 10. 4 is equipped. The first drain pan stores water generated from the first heat exchanger 6 or a space containing the first heat exchanger 6, or water flowing into the space. Further, the space including the first heat exchanger 6 is a space surrounded by the intermediate plate 14, the first drain pan 15, and the columns 11a to 11d. The outdoor air conditioner 100 is provided with a first drainage channel 62 for discharging the water accumulated in the first drain pan 15.

Since the outdoor air conditioner 100 of the present embodiment has the first drainage channel 62, the inflow of water into the inside of the casing below the first drain pan is suppressed.

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

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

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

When the first heat exchanger 6 acts as an evaporator, water is produced from the first heat exchanger 6 or the space containing the first heat exchanger 6. This water may be a problem if it is dripped into the inside of the casing 10. Particularly in the case of the present embodiment, since the outlets 31a to 31d of the air that has passed through the second heat exchanger 3 are in the space below the first drain pan 15 and above the intermediate plate 16, water is blown out together with the outlet air. There is a fear. In such a case, the user feels uncomfortable, so it is preferable to discharge the water through the first drainage channel 62 as in the present embodiment.

Next, when the first heat exchanger 6 acts as a condenser, there is a problem in the following configuration. By directing the water generated in the evaporator to the condenser, the efficiency of the heat exchanger may be improved. Also in the outdoor air conditioner 100 of the present embodiment, heat generated by the second heat exchanger 3 (evaporator) is pumped up and applied to the first heat exchanger 6 (condenser) to exchange heat. Efficiency is improved. If not all of the sprinkled water has evaporated in the condenser, excess water may collect in the first drain pan 15. In this case, as in the case where the first heat exchanger 6 acts as an evaporator, water accumulated in the first drain pan 15 may be blown out.

Further, when the outdoor air conditioner 100 is out of operation, there are the following problems.

In the outdoor air conditioner 100 of this embodiment, an outlet 29 is formed on the top of the top plate 13. Then, the air sucked from the side surfaces 20a to 20d of the first heat exchanger 6 is blown out to the upper part by the air flow generated by the fan 7. In this way, since the outlet 29 is opened in the top plate 13 and the air flow path from the inlet to the outlet 29 is secured, water such as rainwater can be easily absorbed inside the casing 10. To reach the space around the first heat exchanger 6.

Further, since the decorative plates 201 and 202 arranged on the side surface of the casing 10 are provided with a large number of holes, water may enter the inside of the casing 10 from here in case of rain.

These waters may enter the casing 10 and adversely affect the equipment. Here, the adverse effect on the device means that, for example, water enters the inside of the device and the device is damaged. The inside of the device means the inside of an electronic device such as an electrical component, the inside of a compressor motor, the inside of a fan motor, and the like.

In the outdoor air conditioner 100 of the present embodiment, by collecting water in the first drain pan 15 and discharging it in the first drainage channel 62, it is possible to prevent water from entering the inside of the casing 10 below the first drain pan 15. It's suppressed.

(5-2)
In the outdoor air conditioner 100 of the present embodiment, as shown in FIG. 6, the first drain pan 15 is provided with a wall 53 at the end so that water can be collected. Also, a cut is made in the inner surface plate 52 of the columns 11a to 11c, and the first drain pan 15 is inserted into this cut. A notch 54 is formed in the wall 53 of the portion where the first drain pan 15 is inserted.

In the outdoor air conditioner 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 conditioner 100 of the present embodiment, the casing 10 has columns 11a to 11d extending in the vertical direction. And the 1st drainage channel 62 is formed in the columns 11a-11c.

In the outdoor air conditioner 100 of the present embodiment, since the first drainage channels 62 are formed in the columns 11a to 11d, the inflow of water is suppressed in the space surrounded by the columns below the first drain pan 15. ing.

In addition, in the outdoor air conditioner 100 of the present embodiment, the first drainage channels 62 are not formed in all of the four columns 11a to 11d, but the first drainages are not included in some of the columns 11a to 11d. A passage 62 is formed. In other words, the first drainage channel is formed in the three columns 11a to 11c, and the first drainage channel 62 is not formed in the column 11d. By doing so, a space for arranging the electric wiring and the refrigerant pipe is created in the column 11d where the first drainage channel 62 is not formed. In addition, heat exchange between the first drainage channel 62 and the refrigerant pipe can be prevented. It is possible to avoid damaging the electric wiring when the drainage of the first drainage channel 62 leaks.

(5-4)
The outdoor air conditioner 100 of this embodiment further includes a second drain pan 17. The second drain pan 17 stores water in the space containing the second heat exchanger 3. Here, the water accumulated in the second drain pan 17 is water generated from the second heat exchanger or a space including the second heat exchanger, or water flowing into the space. Further, the space including the second heat exchanger is a space surrounded by the intermediate plate 16, the second drain pan 17, and the columns 11a to 11d. The first drainage channel 62 is arranged so that at least a part of the water accumulated in the first drainage pan 15 can flow to the second drainage pan 17 via the first drainage channel 62.

In the outdoor air conditioner 100 of the present embodiment, the water accumulated in the first drain pan 15 is not simply drained, but is allowed to flow into the second drain pan 17, so that the water is accumulated inside the casing 10 or reused. be able to.

(5-5)
The outdoor air conditioner 100 of this embodiment further includes a water storage tank.

Since the outdoor air conditioner 100 of the present embodiment is provided with the water storage tank, it is possible to store excess water in the water storage tank without running off to the periphery of the casing 10.

(5-6)
The outdoor air conditioner 100 of this embodiment further includes a pump. It is possible to send the water collected in the second drain pan 17 to the space containing the first heat exchanger 6.

In particular, when the second heat exchanger 3 is an evaporator, the efficiency can be improved by feeding the water generated in the evaporator or around the evaporator to the first heat exchanger 6 (condenser).

(5-7)
In the outdoor air conditioner 100 of the present embodiment, the second drainage channel 61 is formed in the member forming the casing 10. The second drainage channel 61 suppresses the inflow of water from the top surface of the casing to the inside. The second drainage channel 61 is a drainage channel for water such as rainwater that is about to flow into the outdoor air conditioner 100 from the outside.

In the outdoor air conditioner 100 of this embodiment, since the second drainage channel 61 is formed, it is possible to suppress the inflow of water from the outside such as rainwater into the inside of the device.

(5-8)
In the outdoor air conditioner 100 of this embodiment, the second drainage channel 61 is formed on the column. The second drainage channel 61 suppresses the inflow of water from the top surface of the casing 10 to the inside. Further, different paths for the first drainage channel 62 and the second drainage channel 61 are formed on the columns 11a to 11c.

The outdoor air conditioner 100 of the present embodiment is provided with the first drainage channel 62 and the second drainage channel 61 on the support, so that different treatments can be performed on the drainage that passes through each. In other words, it is possible to separate and discharge wastewater having different generation locations, times, or different reasons. Therefore, it is possible to easily reuse the waste water and perform different treatments. For example, rain water may be simply drained, drain water may be stored in a tank, and the tank may be appropriately removed and disposed of at another place. The advantages of executing such processing are as follows. When it rains, the surroundings are also wet, so even if it drips down, the appearance of the surroundings will not be spoiled. Drain water is generated regardless of the weather, but it is possible to drive without spoiling its aesthetic appearance by configuring it so that it does not drip.

(5-9)
In the outdoor air conditioner 100 of the present embodiment, a space including the second fan 4 is arranged between a space including the first heat exchanger 6 and a space including the second heat exchanger 3. .. The first drainage channel 62 is formed outside the space containing the second fan 4.

Here, the space including the second fan 4 means a space including a blowout path of air passing through the second heat exchanger 3 and blowout ports 31a to 31d. When the water in the first drainage channel 62 falls into the outlets 31a to 31d, the water may be blown out together with the air due to the air flow and hit the user. In the outdoor air conditioner 100 of the present embodiment, the first drainage channel 62 is formed outside the space containing the second fan 4, so that the water passing through the first drainage channel 62 blows out from the outlets 31a to 31a. It is not blown out from 31d.

(5-10)
The outdoor air conditioner 100 of this embodiment can be operated by switching between cooling operation and heating operation.

The outdoor air conditioner 100 of this embodiment can be operated for a long season because it can be operated by switching between cooling operation and heating operation.

Further, the outdoor air conditioner 100 of the present embodiment has drain pans 15 and 17 corresponding to the two heat exchangers 3 and 6, respectively, and a configuration capable of appropriately draining them. Therefore, even if condensed water is generated from any of the heat exchangers 3 and 6, it can be received by the drain pan and discharged to the drainage channel.

(6) Modified Example (6-1) Modified Example 1A
In the outdoor air conditioner 100 of the first embodiment, the first drainage channel 62 is configured to guide the drainage to the second drain pan 17. In the air-conditioning apparatus 100 of Modification 1A, the first drainage channel 62 is configured to perform drainage from the columns 11a to 11c to the lower part of the column. Other configurations are similar to those of the first embodiment.

In the outdoor air conditioner of Modification Example 1A, the water that has accumulated in the first drain pan 15 can be discharged to the outside of the casing 10 by the first drainage channel 62, so that the water flows into the casing 10 below the first drain pan 15. Can be suppressed.

(6-2) Modification 1B
In the outdoor air conditioner 100 of the first embodiment, the first drainage channel 62 guides the drainage to the second drain pan 17, and in the air conditioner 100 of Modification 1A, the first drainage channel 62 includes the columns 11a to. From 11c, it is configured to drain water to the lower part of the column. The outdoor air conditioner of Modification 1B includes a switching device that can switch and use these.

For example, you can use: First, while the outdoor air conditioner is stopped, the drainage of the first drainage channel 62 is drained to the outside of the casing 10. Then throw out rainwater etc. On the contrary, when the outdoor air conditioner is in operation, the drainage of the first drainage channel 62 is switched to reach the second drain pan 17. Then, the water accumulated in the second drain pan is reused or collected in the water storage tank.

(6-3) Modification 1C
In the outdoor air conditioner 100 of the first embodiment, the first drain pan 15 is provided with the notch 54 that is a part of the first drainage channel 62. In the modified example 1C, there is no notch, and a hole is formed in the bottom plate of the drain pan 15. The holes are formed so as to come to the upper portions of the first drainage channels 62 of the columns 11a to 11c. Other configurations are similar to those of the first embodiment.

The air conditioning apparatus of Modification 1C can smoothly discharge the water accumulated in the first drain pan 15 as in the first embodiment.

(6-4) Modification 1D
In the outdoor air conditioner 100 of the first embodiment, the case where the drainage channels 62 and 61 are formed in the three columns 11a to 11c has been described. In the modified example 1D, the drainage channels 62 and 61 are formed only in the one column 11b. Other configurations are similar to those of the first embodiment.

Also in this case, the same effect as that of the first embodiment can be obtained. Moreover, the structure is simpler and the casing 10 can be produced at low cost.

Similarly, the drainage channels 62 and 61 may be formed only in the two columns 11a and 11c.

(6-5) Modification 1E
The outdoor air conditioner of Modification 1D is the case where the drainage channels 62 and 61 are formed only in the single column 11b. In the outdoor air conditioner of Modification Example 1E, the drainage channel 62 is formed on one column 11b, and the drainage channel 61 is formed on another column 11a. Other configurations are similar to those of the first embodiment.

Also in this case, the same effect as that of the first embodiment can be obtained. Moreover, the structure of the support pillar is simpler than that of the first embodiment and the modification 1D, and the casing 10 can be produced at low cost.

(6-6) Modification 1F
In the first embodiment, the first drainage channels 62 in the columns 11a to 11c are inside the columns. In the modification 1F, the first drainage channel 62 is a groove formed on the inner surface of the columns 11a to 11c. Other configurations are similar to those of the first embodiment.

The outdoor air conditioner of Modification 1F has the same effects as the case of the first embodiment.

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

Although the first drainage channel 62 has been described above, the same applies to the second drainage channel 61.

<Second Embodiment>
(7) Configuration of the outdoor air conditioner 100a The configuration of the outdoor air conditioner 100a according to the second embodiment is roughly the same as the refrigerant circuit of FIG. 1 and the arrangement of each component of FIGS. 3A and 3B, and the outdoor of the first embodiment. It is the same as the air conditioner 100. In the second embodiment, the configurations of the first drain pan, the second drain pan, the first drainage channel, etc. are different from those in the first embodiment. Moreover, the outdoor air conditioner 100a of the second embodiment has a third drainage channel formed therein.

The outdoor air conditioner 100a according to the second embodiment, in the same manner as the outdoor air conditioner 100 of FIGS. 3A and 3B, is arranged in the casing 10 in order from the first fan 7, the first heat exchanger 6, and the first heat exchanger 6. The two fans 4, the second heat exchanger 3, and the compressor 1 are housed. In addition, the casing 10 has four columns 11a to 11d, 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 the top. .. It should be noted that, from now on, when these parts are indicated by reference numerals in the second embodiment, they are indicated by adding "a" at the end like the first drain pan 15a.

7A and 7B are perspective views showing the internal structure of the outdoor air conditioner 100a so as to be understood, FIG. 7C is a sectional view of the bottom plate 12a, and FIGS. 8A and 8B are views of the first drain pan 15a and FIG. 9A. 9D is a view of the second drain pan 17a, and FIG. 10 is a cross-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 containing 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 FIGS. 8A and 8B, two holes 81a and 81b are formed on the bottom surface of the first drain pan 15a. 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 drainage channels 71. The number of the first drainage channels 71 may be one, or may be three or four.

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

The second drain pan 17a stores water generated from the second heat exchanger 3a or the space containing the second heat exchanger 3a or water flowing into the space. As shown in FIGS. 9A and 9B, an outlet 71b of the first drainage channel 71 (hose 71a) is arranged above the second drain pan 17a. The water collected in the first drain pan 15a exits from the outlet 71b via the first drainage channel 71 (hose 71a), falls on the bottom surface of the second drain pan 17a, and collects in the second drain pan 17a.

As shown in FIGS. 9A, 9B, and 9C, the bottom surface of the second drain pan 17a is inclined so that the side on which the pedestal 82a is arranged is the lowest and the opposite side is the highest. The hole 81c of the third drainage channel 73 is arranged near the lowest side of the bottom surface of the second drain pan 17a. The inflow portion of the water from the outlet 71b of the first drainage channel 71 onto the second drain pan 17a has a height equal to or higher than the formation portion of the hole 81c of the third drainage channel 73. In the present embodiment, on the bottom surface of the second drain pan 17a, the water inflow portion from the outlet 71b of the first drainage channel 71 is higher than the formation portion of the hole 81c of the third drainage channel 73, and the other first The water inflow portion from the outlet 71b of the drainage channel 71 is at the same height as the portion where the hole 81c of the third drainage channel 73 is formed. Therefore, the water accumulated in the second drain pan easily collects in the portion where the hole 81c is formed, according to the inclination of the water. The water collected in the hole 81c is discharged to the outside of the casing via the third drainage channel 73.

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

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

As shown in FIGS. 7A, 7B, 9A and 9D, pedestals 82a to 82c are arranged in the second drain pan 17a. The second heat exchanger 3a is arranged on the pedestals 82a to 82c. As described above, the bottom surface of the second drain pan 17a is inclined. The upper surfaces of the pedestals 82a to 82c are horizontal by correcting this inclination. Moreover, the upper surfaces of the three pedestals 82a to 82c are arranged so as to have the same height. Therefore, by arranging the second heat exchanger 3a on the pedestal, the second heat exchanger 3a can be horizontally arranged.

Further, as shown in FIG. 10, the filter 83 may be arranged in the holes 81a and 81b of the first drain pan 15a and the hole 81c of the second drain pan 17a. The filter 83 includes a peripheral annular portion and a central mesh-shaped portion. In FIG. 10, the lower protruding portion of the annular portion is fitted into the hole and fixed to the drain pans 15a and 17a. In the present embodiment, the filter 83 is made of metal. The metal includes copper or iron. The filter 83 is a mesh-shaped portion in the central portion, and prevents a solid matter such as dust from flowing out through a liquid such as water. The filter 83 prevents the first drainage channel 71 and the third drainage channel 73 from being clogged with solid matter and causing poor drainage.

(8) Features of Second Embodiment The outdoor air conditioner 100a of the second embodiment is similar to the outdoor air conditioner 100 of the first embodiment in (5-1), (5-4), (5-). It has features such as 10). In addition, it has the following features.

(8-1)
Like the outdoor air conditioner 100 of the first embodiment, the outdoor air conditioner 100a of the second embodiment has, under the first drain pan 15a, a second heat exchanger 3a as a use-side heat exchanger, The second fan 4 and its outlets 31a to 31d (see FIG. 3A etc.) are arranged. Therefore, when the water collected in the first drain pan drips into the casing, there is a possibility that the dripping water is blown out from the blowout port by the second fan. Therefore, in this embodiment, by providing the first drainage channel 71, the drainage is prevented from being blown off by the wind of the second fan 4 by allowing the drainage to pass through the hose 71a.

Furthermore, 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 conditioner 100a of the second embodiment further includes a second drain pan 17a and a third drainage channel 73. The second drain pan 17a stores water in the space containing the second heat exchanger 3a. The space including the second heat exchanger 3a means a space that includes the second heat exchanger and is partitioned by a casing and a partition plate (intermediate plate, drain pan, etc.) that vertically divides the interior of the casing. .. The third drainage channel 73 discharges the water accumulated in the second drain pan 17a to the outside of the casing.

Since the outdoor air conditioner 100a of the second embodiment has the third drainage channel 73 for discharging the water accumulated in the second drain pan 17a to the outside of the casing, the space below the second drain pan 17a inside the casing. It is possible to prevent water from entering.

Further, since the third drainage channel 73 is composed of the hose 73a, the third drainage channel 73 can be flexibly arranged.

(8-3)
The bottom surface of the second drain pan 17a of the second embodiment is inclined so that the portion where the third drainage channel 73 is formed is lower than the portion where the water from the first drainage channel 71 flows. ..

The outdoor air conditioner 100a according to the second embodiment is configured such that the second drain pan 17a is inclined and the portion where the third drainage channel 73 is formed is lowered, so that the third drainage channel is provided. Water gathers at 73 and is easily discharged.

(8-4)
In the outdoor air conditioner 100a of the second embodiment, pedestals 82a to 82c are formed in the second drain pan 17a. 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 conditioner 100a of the second embodiment, the pedestals 82a to 82c that support the second heat exchanger 3a are formed in the second drain pan 17a, and therefore, on the inclined second drain pan 17a. The second heat exchanger 3a can be supported horizontally.

(9) Modifications (9-1) Modifications 1A, 1B
There were three pedestals 82a to 82c of the second drain pan 17a of the second embodiment. The number of pedestals may be two or four or more as long as the second heat exchanger 3c can be supported horizontally.

The drain pan 17b of the modification 1A has four pedestals 82a to 82d, as shown in FIG. The drain pan 17c of the modification 1B has two pedestals 82a and 82d as shown in FIG. In each case, the upper surfaces of the plurality of pedestals are arranged horizontally and at the same height. Therefore, by arranging the second heat exchanger 3a on the pedestal, the second heat exchanger 3a can be horizontally arranged. The configuration of the outdoor air conditioner of Modification Example 1A or 1B other than the pedestal is the same as that of the second embodiment.

(9-2) Modification 1C
The bottom surface of the second drain pan 17a of the second embodiment is substantially quadrangular, and is inclined so that the side along the pedestal 82a becomes lower and the side facing the side becomes higher. In the modified example 1C, the bottom surface of the second drain pan 17a is inclined so that the corner of the hole 81c of the third drainage channel 73 becomes lower and the angle opposite to that corner becomes higher. Other configurations, such as the top surfaces of the pedestals 82a to 82c being horizontal, are similar to those of the second embodiment.

In the modified example 1C, on the bottom surface of the second drain pan 17a, the water inflow portion from the outlets 71b of the two first drainage channels 71 is higher than the formation portion of the hole 81c of the third drainage channel 73. Therefore, in the modified example 1C, the water collected in the second drain pan is more likely to be collected in the portion where the hole 81c is formed and is more easily discharged to the third drainage channel 73 than in the first embodiment.

While the embodiments of the present disclosure have been described above, it will be understood that various changes in form and details can be made without departing from the spirit and scope of the present disclosure described in the claims. ..

100, 100a Outdoor air conditioner 1 Compressor 2 Four-way switching valve 3, 3a Second heat exchanger 4 Second fan 5 Expansion valve 6 First heat exchanger 7 First fan 8 Accumulator 10 Casings 11a to 11d Struts 12, 12a Bottom plate 13 Top plate 14, 16 Intermediate plate 15, 15a First drain pan 17, 17a Second drain pan 54, 57 Notch 61 Second drainage channel 62, 71 First drainage channel 73 Third drainage channel 71a, 73a Hose 81a- 81c Holes 82a to 82c Pedestal 83 Filter

JP, 2006-242510, A

Claims (18)

A compressor (1),
A first heat exchanger (6), which is one of an evaporator and a condenser,
A first drain pan (15, 15a) for storing water generated from the first heat exchanger or a space containing the first heat exchanger, or water flowing into the space;
A first fan (7) for passing air through the first heat exchanger;
A second heat exchanger (3) which is the other of the evaporator and the condenser, and which is arranged below the first heat exchanger;
A second drain pan (17, 17a) for storing water in a space containing the second heat exchanger;
A second fan (4) for passing air through the second heat exchanger;
A casing (10) accommodating the compressor, the first heat exchanger, the first fan, the first drain pan, the second heat exchanger, and the second fan;
An outdoor air conditioner comprising:
A first drainage channel (62, 71) for discharging water accumulated in the first drain pan is formed,
The first heat exchanger is used as a condenser and the second heat exchanger is used as an evaporator,
Outdoor air conditioner (100, 100a). The first heat exchanger is used as a heat source side heat exchanger, and the second heat exchanger is used as a use side heat exchanger,
The outdoor air conditioner according to claim 1. A space including a second fan is arranged between a space including the first heat exchanger and a space including the second heat exchanger, and the space including the second fan and the second heat. Intermediate plates (16, 16a) are arranged between the spaces containing the exchangers,
Wherein the first drainage path are connected through said during plate from the first drain pan to said second drain pan,
The outdoor air conditioner according to claim 1. The first drain pan is formed with holes (81a, 81b) or notches (54) that are a part of the first drainage channel,
The outdoor air conditioner according to claim 1. The casing is
Having columns (11a-11d) extending in the vertical direction,
The first drainage channel is formed on the column.
The outdoor air conditioner according to any one of claims 1 to 4. The first drainage channel (71) has a hose (71a) connected to the first drain pan (15a),
The outdoor air conditioner according to any one of claims 1 to 4. The first drainage channel is arranged so that at least a part of water accumulated in the first drain pan can be discharged to the outside of the casing via the first drainage channel,
The outdoor air conditioner according to any one of claims 1 to 6. The first drainage channel is arranged so that at least a part of water accumulated in the first drainage pan can flow to the second drainage pan via the first drainage channel,
The outdoor air conditioner according to any one of claims 1 to 7. A third drainage channel for discharging the water accumulated in the second drain pan to the outside of the casing is further formed.
The outdoor air conditioner according to any one of claims 1 to 8. The third drainage channel has a hose connected to the second drain pan,
The outdoor air conditioner according to claim 9. The bottom surface of the second drain pan that receives water is inclined so that the portion where the third drainage channel is formed is lower than the portion where the water from the first drainage channel flows in,
The outdoor air conditioner according to claim 9. A pedestal (82a to 82c) that supports the second heat exchanger is further formed in the second drain pan, and the pedestal supports the second heat exchanger in a horizontal state.
The outdoor air conditioner according to any one of claims 1 to 11. The water tank further includes a water storage tank capable of storing water accumulated in the second drain pan.
The outdoor air conditioner according to any one of claims 1 to 12. A pump capable of sending water accumulated in the second drain pan to a space containing the first heat exchanger,
The outdoor air conditioner according to any one of claims 1 to 13. A second drainage channel (61) for suppressing the inflow of water from the top surface of the casing to the inside is formed in a member forming the casing,
The outdoor air conditioner according to any one of claims 1 to 14. A second drainage passage that suppresses the inflow of water from the top of the casing into the internal space is formed on the pillar.
Different paths are formed in the pillar for the first drainage channel and the second drainage channel,
The outdoor air conditioner according to claim 5. A space containing the second fan is arranged between a space containing the first heat exchanger and a space containing the second heat exchanger,
The first drainage channel is formed outside a space including the second fan,
The outdoor air conditioner according to claim 1. The outdoor air conditioning apparatus, cooling operation, or, Ri operable der switching the heating operation, using the first heat exchanger as a condenser and the heat source-side heat exchanger during cooling or dehumidifying operation, the The second heat exchanger is used as an evaporator and a user side heat exchanger ,
The outdoor air conditioner according to any one of claims 1 to 17.

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