JP2014013101A - Cooling device for air conditioner outdoor unit and air conditioner outdoor unit using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cooling device capable of reducing electric power consumption upon cooling and to provide an air conditioner outdoor unit using the cooling device.SOLUTION: The cooling device 2 is assembled with an outdoor unit body 1 to constitute an air conditioner outdoor unit. A support base 8 constituting the cooling device 2 is attached to a top face part 13 such that the lowest end 81 of an inclination plane 80 faces the side of an exhaust port 12. A water storage tank 3 is arranged on the inclination plane 80 via a water permeable sheet 5. A drainage hole 36 is opened to a bottom part 33 to be communicated with a water storage space 300. A cooling part 4 is attached to the exhaust port 12. A water retaining part 42 is made of porous material, is attached to a base body part 41 and has a vent hole 43. The water permeable sheet 5 is made of porous material, has an upper surface opposite to the drainage hole 36 and is loaded on the inclination plane 80 so as to directly come into contact with the bottom part 33 of the water storage tank 3, of which one end side comes into contact with the water retaining part 42 on the side of the lowest end 81.

Description

  The present invention relates to a cooling device for an air conditioner outdoor unit and an air conditioner outdoor unit using the same.

  With the spread of household electrical appliances (home appliances), the power consumption of ordinary households has been increasing year by year, and now it is said that ordinary households account for about 30% of the total power consumption. Yes. On the other hand, the power supply shortage has become a serious social problem triggered by the Great East Japan Earthquake, and the importance of power saving has been reviewed again.

  When trying to realize power saving in a general household, one of the home appliances to be considered first is an air conditioner, a so-called air conditioner. In particular, air conditioning accounts for about half of the total power consumption of home households during the summer day, when power consumption dramatically increases due to cooling. First, air-conditioner power saving must be realized.

  Regarding the power saving technology related to the above-described air conditioner, for example, in Patent Document 1, a water storage tank is installed on the top plate of the air conditioner outdoor unit, a water retaining cloth is disposed on the inlet side of the outdoor unit, and the upper end of the water retaining cloth is attached. A cooling device for an air conditioner outdoor unit that supplies cooling water to a water retaining cloth by lifting and removing it from the water storage tank is disclosed.

  By the way, in this type of air conditioner, high-temperature air (exhaust hot air) is released from the outdoor unit by the heat exchange action. This exhausted hot air has an adverse effect on the environment, such as contributing to the heat island phenomenon. Moreover, the surrounding air which should be attracted | sucked by an outdoor unit with exhaust hot air is warmed, and the vicious cycle that the heat exchange efficiency of an outdoor unit falls also arises. Therefore, in order to reduce adverse effects on the environment and improve the heat exchange efficiency of the outdoor unit, it is also important to cool the exhaust hot air.

  Regarding the above-described exhaust hot air cooling technology, for example, Patent Document 2 discloses a cooling device in which a water retaining cloth is disposed on the exhaust port side of an outdoor unit to cool the exhaust hot air. The water retaining cloth of Patent Document 2 is held by the frame body in the unfolded state, and is supplied to the water retaining cloth by supplying drain water of the outdoor unit to the water retaining cloth from the drain pipe provided at the upper part of the frame body. It cools the exhaust hot air.

  However, in Patent Documents 1 and 2 described above, problems arise in the following points. First, since the cooling device of Patent Document 1 requires a driving mechanism such as a small motor in order to put the water retaining cloth into and out of the water storage tank, the cost increases accordingly.

  In addition, since the cooling device of Patent Document 1 sucks the water retaining cloth into the air intake and brings it into contact with the heat exchanger, the water retaining cloth blocks the air intake and cannot supply the necessary amount of outside air to the heat exchanger. A malfunction occurs. In addition, it is difficult to make the water retaining cloth evenly contact the surface of the heat exchanger, and the cooling effect becomes unstable. Therefore, a stable power saving effect cannot be obtained.

  Further, since this type of outdoor unit is usually arranged with the side surface on the inlet side facing the wall surface of the house, there is no sufficient gap between the outdoor unit and the wall surface of the house facing the outdoor unit. There are many cases. Therefore, in the configuration in which the water retaining cloth is arranged on the intake port side of the outdoor unit as in the cooling device of Patent Document 1, there is a problem that the cooling device cannot be installed depending on the specific arrangement conditions of the outdoor unit. A similar problem occurs in Patent Document 2. That is, since the cooling device of Patent Document 2 supplies cooling water to the water retaining cloth, a space for drawing the drain pipe is required around the air conditioner outdoor unit. Depending on the specific arrangement conditions of the outdoor unit, the cooling device There is a problem that cannot be installed.

JP 2010-216709 A JP 2004-11992 A

  An object of the present invention is to provide a cooling device for an air conditioner outdoor unit capable of reducing power consumption during cooling and saving an electricity bill, and an air conditioner outdoor unit using the same.

  Another object of the present invention is to provide a cooling device for an air conditioner outdoor unit capable of reducing manufacturing costs, construction costs, and maintenance costs, and an air conditioner outdoor unit using the same.

  Still another object of the present invention is to provide a cooling device that can be retrofitted to an existing air conditioner outdoor unit, and an air conditioner outdoor unit using the same.

  In order to solve the above-described problems, an air conditioner outdoor unit cooling device (cooling device) according to the present invention includes a support, a water storage tank, a cooling unit, and a water permeable sheet. The support base has an inclined surface whose height decreases along one direction, and is attached to the top surface of the outdoor unit so that the lowest end of the inclined surface faces the exhaust port side of the outdoor unit. The water storage tank has a water storage space and a drain hole, and is disposed on an inclined surface with a water permeable sheet interposed therebetween. The drainage hole opens at the bottom of the water storage tank and communicates with the water storage space. The cooling unit includes a base unit and a water retention unit, and is attached to the exhaust port side of the outdoor unit. The water retaining portion is made of a porous material, is attached to the base portion, and has a vent hole. The water permeable sheet is made of a porous material, and the upper surface faces the drainage hole and is placed on the inclined surface so as to be in direct contact with the outer surface of the bottom of the water storage tank, and one end side is the water retaining portion on the lowest end side of the inclined surface. Contact.

  Furthermore, the cooling device according to the present invention constitutes a part of the air conditioner outdoor unit in combination with the outdoor unit main body. That is, the air conditioner outdoor unit according to the present invention includes an outdoor unit body and a cooling device.

  The outdoor unit body has a housing and a heat exchanger. The housing has a storage space and an exhaust port communicating with the storage space, and the heat exchanger is stored at a position facing the exhaust port in the storage space. On the other hand, the support base which comprises a cooling device is attached to the top | upper surface of a housing. The cooling unit is attached to the exhaust port side of the housing, and one end side of the water-permeable sheet is in contact with the water holding unit on the lowest end side of the inclined surface.

  As described above, in the cooling device constituting the air conditioner outdoor unit according to the present invention, the water retention part having a porous structure is attached to the base part. According to this configuration, from the viewpoint of cooling efficiency, the shape and dimensions of the water retaining portion can be set to an optimal configuration. And since the water retention part is attached to the base | substrate part, the handling at the time of construction work becomes easy and construction cost can be reduced.

  The cooling effect of the cooling part can be explained as a result of the latent heat of vaporization of the cooling water in the water holding part. That is, since the water retaining portion has the vent hole, when the cooling water is supplied to the water retaining portion, the air passing through the vent hole is heat-exchanged by the latent heat of vaporization of the cooling water and cooled.

  Here, one of the features of the cooling device according to the present invention lies in the configuration of a supply path for supplying cooling water to the water retention unit. If it demonstrates in detail, the water storage tank used as the starting point of the said supply path | route has the drain hole which leads to water storage space in the bottom part. The water permeable sheet is made of a porous material, and is disposed on the outer surface of the bottom of the water storage tank so that one end faces the drain hole, and the other end contacts the water retaining portion. According to this structure, when the cooling water is stored in the water storage tank, the cooling water is discharged from the drain hole to the water permeable sheet by gravity or the like, and the discharged cooling water passes through the inside of the water permeable sheet by capillary action, and further, It will be supplied to a water holding part through a contact part with a water holding part.

  According to the configuration of the supply path described above, without using a water pump, a complicated control device, and their driving power source, and as long as cooling water is stored in the water storage tank, from the water storage tank to the water retention unit, The cooling water can be continuously supplied automatically. Therefore, it is possible to provide a cooling device for an air conditioner outdoor unit that can reduce manufacturing costs, construction costs, and maintenance costs.

  Moreover, in the supply path mentioned above, it supplies to a water holding part through a water permeable sheet from a water storage tank. According to this configuration, the cooling water discharged from the drain hole of the water storage tank spreads widely in the water permeable sheet by capillary action, and then is supplied to the water holding part through the contact portion between the water permeable sheet and the water holding part. Regardless of the location and number of drain holes, the cooling water can be supplied widely and uniformly to the water retention part. Therefore, the vaporization of the cooling water in the water retaining part can be caused uniformly, and as a result, an even cooling effect can be produced.

  In addition, the support base constituting the cooling device has an inclined surface whose height decreases along one direction, the water storage tank is disposed on the inclined surface, and the water permeable sheet includes the bottom outer surface of the water storage tank and the inclined surface. It is arranged between the faces. According to this configuration, in the supply path for supplying the cooling water to the water retaining section, the gravity based on the height difference of the inclined surface acts on the movement of the cooling water in the water permeable sheet, in addition to the capillary phenomenon. Efficiency is improved. As a result, since the cooling water is smoothly supplied to the cooling unit, it is possible to provide an air conditioner outdoor unit cooling device that can reduce power consumption during cooling.

  Each of the water storage tank, the cooling unit, and the water permeable sheet constituting the cooling device according to the present invention is combined with an outdoor unit body having a well-known basic configuration, and on the outer surface of the housing of the outdoor unit body Since it is attached, the cooling device which can be retrofitted and used with respect to the existing air conditioner outdoor unit can be provided.

  The cooling unit of the cooling device covers the exhaust port of the outdoor unit main body. According to this configuration, the high-temperature air (exhaust hot air) discharged from the exhaust port due to the heat exchange action of the outdoor unit main body is cooled by the latent heat of vaporization of the cooling water in the water retaining portion as already described when passing through the vent hole. Therefore, adverse effects on the environment can be reduced. Further, by cooling the exhaust hot air, a problem that the ambient air to be sucked into the outdoor unit by the exhaust hot air is avoided, so that the heat exchange efficiency of the outdoor unit can be improved.

  Furthermore, since the cooling effect of the cooling unit is automatically and continuously exhibited as long as the cooling water is discharged from the water storage tank, the ambient air to be sucked into the outdoor unit body is automatically and continuously To be cooled. As a result, the efficiency of heat exchange performed between the intake air and the heat exchanger is improved, and the power consumption of the outdoor unit main body accompanying the operation is reduced. Therefore, it is possible to provide a cooling device capable of reducing power consumption during cooling, and an air conditioner outdoor unit using the same.

  Since the water retention part which comprises a cooling part is attached to the base | substrate part, even if it attaches a cooling part so that the exhaust port of an outdoor unit main body may be covered, the installation attitude | position of a water retention part is stabilized. As a result, for example, the problem that the water retaining portion blocks the exhaust port does not occur. Therefore, an air conditioner outdoor unit that can reduce maintenance costs can be provided.

  Since each of the water storage tank, the cooling unit, and the water permeable sheet constituting the cooling device is attached to the outer surface of the housing of the outdoor unit body, the part to which the cooling device is attached, that is, the top surface of the outdoor unit body, And the direct sunlight to the side surface by the side of an exhaust port is interrupted | blocked, and the raise of the temperature inside an outdoor unit main body is suppressed. Therefore, the heat exchange efficiency of the outdoor unit can be improved.

As described above, according to the present invention, the following effects can be obtained.
(1) It is possible to provide a cooling device for an air conditioner outdoor unit that can reduce power consumption during cooling and save electricity charges, and an air conditioner outdoor unit using the same.
(2) It is possible to provide a cooling device for an air conditioner outdoor unit capable of reducing manufacturing costs, construction costs, and maintenance costs, and an air conditioner outdoor unit using the same.
(3) It is possible to provide a cooling device that can be retrofitted to an existing air conditioner outdoor unit, and an air conditioner outdoor unit using the same.

  Other objects, configurations and advantages of the present invention will be described in more detail with reference to the accompanying drawings. The accompanying drawings are merely examples.

It is a front view of the air-conditioner outdoor unit which concerns on one Embodiment of this invention. It is a perspective view which decomposes | disassembles and shows the air-conditioner outdoor unit of FIG. It is sectional drawing which decomposes | disassembles and shows the water storage tank shown in FIG. It is a front view of the cooling unit shown in FIG. It is an expanded sectional view which fractures | ruptures and shows a part of cooling part shown in FIG. It is a front view which shows the use condition of the air-conditioner outdoor unit shown in FIG. It is an expanded sectional view which abbreviate | omits and shows a part of air-conditioner outdoor unit shown in FIG. It is a front view of the cooling unit which constitutes the cooling device concerning another embodiment of the present invention. It is a front view of the cooling unit which constitutes the cooling device concerning another embodiment of the present invention. It is an expanded sectional view which fractures | ruptures and shows a part of cooling part shown in FIG. It is a perspective view which decomposes | disassembles and shows the air-conditioner outdoor unit which concerns on another embodiment of this invention. It is a plane section which simplifies and shows about an air-conditioner outdoor unit concerning another embodiment of the present invention. It is a plane section which simplifies and shows about an air-conditioner outdoor unit concerning another embodiment of the present invention.

  1 to 13, the same reference numerals indicate the same or corresponding parts. In the description of FIGS. 1 to 13, the depth direction of the outdoor unit main body and the thickness direction of the cooling unit coincide with each other, and therefore, they are all denoted by the same symbol T.

  The cooling device for an air conditioner outdoor unit according to the present invention is used in combination with an outdoor unit body to constitute an air conditioner outdoor unit. In this specification, “air conditioner” is an abbreviation of “air conditioner” and is collectively called “air conditioner” in Japanese, and refers to an air conditioner that adjusts the temperature and humidity of indoor air. Sure. 1 and 2 includes an outdoor unit body 1 and a cooling device 2. The outdoor unit body 1 is connected to a known air conditioner indoor unit (not shown) through a refrigerant pipe. Since the outdoor unit main body 1 is a well-known component in the technical field, it will be briefly described below in a range related to the cooling device 2.

  First, the outdoor unit main body 1 in FIGS. 1 and 2 includes a housing 10 and a heat exchanger 11. The housing 10 has a storage space 100 and an exhaust port 12 communicating with the storage space 100. The housing 10 has a rectangular parallelepiped shape, and includes a top surface portion 13 and a side surface portion 14 that falls along the height direction H from each of four sides constituting the top surface portion 13. The storage space 100 is defined by the inner surface of the top surface portion 13 and the inner surface of the side surface portion 14 inside the housing 10. The exhaust port 12 is provided in at least one of the four side surfaces 14. Although not necessarily clear from FIGS. 1 and 2, an air inlet (not shown) that communicates with the storage space 100 on the side surface opposite to the side surface 14 where the air outlet 12 is provided, facing the exhaust port 12. Not).

  The heat exchanger 11 is stored at a position facing the exhaust port 12 in the storage space 100. Although not necessarily clear from FIGS. 1 and 2, the heat exchanger 11 is disposed between the exhaust port 12 and an intake port (not shown), and further, between the heat exchanger 11 and the intake port. A blower fan (not shown) is disposed between them. With this configuration, when the blower fan is driven, the outside air sucked into the intake port comes into contact with the heat exchanger 11 and then is discharged from the exhaust port 12 to the outside through the blower fan.

  Next, the cooling device 2 of FIGS. 1 and 2 includes a water storage tank 3 (see FIG. 3), a cooling unit 4 (see FIGS. 4 and 5), a water permeable sheet 5, and a support base 8.

  The water storage tank 3 has a tank main body 31 and a lid 32. Referring to FIG. 3 related to the water storage tank 3, the tank main body 31 includes a water storage space 300, a bottom 33, a side surface 34, an opening 35, a first drain hole 36, and a second drain hole 37. And have. The water storage space 300 is defined by the inner surface of the bottom portion 33 and the inner surface of the side surface portion 34. The opening 35 opens to the water storage space 300 at a position facing the inner surface of the bottom 33 when viewed in the height direction H.

  The first drain hole 36 opens to the bottom 33 and communicates with the water storage space 300. Although it is not clear from FIG. 3, the first drain holes 36 are plural, and are intermittently arranged at a predetermined interval in the width direction W at the bottom 33. The diameter (inner dimension) of the first drain hole 36 is appropriately adjusted based on the relative relationship between the volume of the water storage space 300 and the amount of drainage. As an example, when the volume of the water storage space 300 is about 16 liters, the diameter of the first drain hole 36 is about 0.2 to 1.0 mm.

  The second drainage hole 37 opens to the side of the bottom 33 viewed in the height direction H in the side surface portion 34 and communicates with the water storage space 300. There are a plurality of second drain holes 37, and the side surfaces 34 are intermittently arranged at intervals in the width direction W. The diameter (internal dimension) of the second drain hole 37 may be the same as that of the first drain hole 36, or may be larger than the diameter of the first drain hole 36. it can.

  The lid 32 is detachably attached to the opening 35 and covers the opening 35 to seal the water storage space 300. According to the configuration in which the opening 32 is provided with the lid portion 32 and the water storage space 300 is sealed by the lid portion 32, when the cooling water (7) is stored in the water storage space 300, the cooling water (7) by natural evaporation is stored. Reduction can be avoided and the operation period of the cooling device 2 can be extended. The lid portion 32 has a water supply port for injecting cooling water (7) into the surface, and a cap 38 is attached to the water supply port.

  On the inner surface of the water storage tank 3, the opening end of the first drain hole 36 and the opening end of the second drain hole 37 are covered with a clogging prevention filter 39. According to this structure, even when dust or the like is mixed into the cooling water (7) stored in the water tank 3, the cooling water (7) is smoothly discharged through the first and second drain holes 36 and 37. You can continue.

  On the other hand, as shown in FIGS. 4 and 5, the cooling part 4 has a base part 41 and a water retention part 42. The water retaining part 42 is made of a porous material, is attached to the base part 41, and has a vent hole 43. The base portion 41 is a frame body having a lattice-like portion inside, and has a structure in which a plurality of rod-shaped members are crossed and joined at respective intersections. With this structure, the base portion 41 has a vertical lattice portion 44 extending in the height direction H and a horizontal lattice portion 45 extending in the width direction W intersecting the height direction H. The vertical lattice portion 44 and the horizontal lattice portion A through portion 46 penetrating in the thickness direction T is formed inside the portion surrounded by the portion 45.

  The base portion 41 serves as a bone (support material) for the water retention portion 42, and is made of a rod-shaped member mainly composed of a metal material such as aluminum or stainless steel from the viewpoint of corrosion resistance, weather resistance, impact resistance, and the like. Can be configured. Further, in addition to the above-described viewpoints, a synthetic resin material can also be used from the viewpoint of material cost, processing cost, and the like.

  The water retaining part 42 is made of a porous material and is attached to the base part 41. That is, the water retention part 42 is a porous structure or a sponge structure mainly composed of a synthetic resin material. Examples of the synthetic resin material used include polyvinyl alcohol (PVA), polyethylene (PE), polypropylene (PP), vinyl chloride resin (PVC), styrene resin (PS), and PET resin (PET). .

  Here, the water retaining part 42 has a porous structure, so that it absorbs water in the space of each hole, stores the absorbed water for a certain period, and then receives external pressure, gravity, heat, and surface tension of water. It can be discharged depending on the situation. That is, the “water retention” in the water retention unit 42 means a function that absorbs water, and preferably allows the absorbed water to be discharged after being stored for a certain period.

  The water retaining part 42 is formed with a constant thickness around the base part 41 constituting the opening edge of the penetrating part 46, that is, the vertical lattice part 44 and the horizontal lattice part 45, as the center wire rods ( (See FIG. 5). As a method for forming the water retaining part 42 on the base part 41, for example, a sponge sheet (porous sheet) cut into a strip shape may be wound according to the inner dimension of the through part 46. The substrate portion 41 may be integrally formed by a known coating technique such as immersing in a synthetic resin material solution.

  The water retaining part 42 has a vent hole 43. The ventilation hole 43 penetrates the base portion 41 and the water retention portion 42 in the thickness direction T. In other words, the vent hole 43 has the inner surface of the water retaining portion 42 formed on the base portion 41 constituting the opening edge of the through portion 46 as an opening edge, and the opening edge of the vent hole 43. Is a similar shape in which the opening edge of the penetrating portion 46 is reduced. That is, the basic structure of the vent hole 43 is based on the end edge of the base portion 41 that constitutes the through portion 46, and the final opening end is formed by the water retaining portion 42 that uses the end edge of the base portion 41 as the central wire rod. Is determined.

  The cooling unit 4 is attached to the outer surface of the housing 10 and covers the exhaust port 12 in the attached state. 1 and 2 is attached to the side surface portion 14 by a pair of hooks 6 and 6, and covers the exhaust port 12 in the attached state. The cooling unit 4 has a structure in which only the upper edge portion of the base unit 41 is suspended by the pair of hooks 6, 6, but the mounting structure of the cooling unit 4 to the side surface unit 14 is stable, construction It can be appropriately changed from the viewpoint of efficiency and the like. For example, since this type of outdoor unit body 1 is literally installed outside the room, the cooling unit 4 is screwed to the side unit 14 at the four corners to install the cooling unit 4 with respect to the side unit 14. Is stable. As a result, it is possible to prevent noise caused by the cooling unit 4 colliding with the side surface part 14 in a strong wind such as a typhoon.

  The basic configuration of the cooling device will be described with reference to FIGS. 1 to 5 again. The water permeable sheet 5 is made of a porous material, and is disposed on the outer surface of the bottom 33 of the water storage tank 3 so that the surface region on one end side faces the first drain hole 36 across the bent portion, and the surface on the other end side. The region comes into contact with the water retention part 42. The water permeable sheet 5 can have the same structure as the water retention part 42. That is, the water permeable sheet 5 is mainly composed of a synthetic resin material such as polyvinyl alcohol (PVA), polyethylene (PE), polypropylene (PP), vinyl chloride resin (PVC), styrene resin (PS), PET resin (PET), A sheet-like body having a porous structure or a sheet-like body having a sponge structure.

  The water permeable sheet 5 is a member that constitutes a supply path of the cooling water (7) from the water storage tank 3 to the water retention unit 42. The “water permeability” of the water permeable sheet 5 means a function capable of absorbing and discharging water. Therefore, as the water-permeable sheet 5, for example, a woven fabric using natural fibers or synthetic fibers, or a nonwoven fabric composed of the same fibers can be used.

  The support base 8 has an inclined surface 80 whose height decreases along one direction. The support 8 is placed on the top surface 13 of the upper portion of the housing 10 so that the lowest end 81 of the inclined surface 80 faces the exhaust port 12 side.

  The air conditioner outdoor unit described with reference to FIG. 1 to FIG. 5 has one of the features in that it has a cooling device 2. More specifically, the cooling device 2 of FIG. 1 to FIG. 7) There is one of the features in the supply path for supplying. Then, with reference to FIG.6 and FIG.7 next, the supply path | route of the cooling water (7) in the cooling device 2 is demonstrated.

  First, the correlation between the support base 8, the water storage tank 3, and the water permeable sheet 5 will be described. As shown in FIGS. 6 and 7, the water storage tank 3, the water permeable sheet 5, and the support base 8 have been described above. In order, they are stacked on the top surface 13 of the outdoor unit body 1.

  The water permeable sheet 5 is installed on the inclined surface 80 and is attached so as to hang down from the lowest end 81 of the inclined surface 80 to the side surface portion 14 having the exhaust port 12, and the inner surface of the portion suspending from the side surface portion 14 is water retaining. By being in surface contact with the outer surface of the portion 42, the water retaining portion 42 is connected in a water-permeable manner. The surface contact portions between the water permeable sheet 5 and the water retaining portion 42 are preferably bonded to each other leaving a contact area through which water can pass.

  The water storage tank 3 is mounted on the support base 80 and the outer surface of the housing 10 with the water permeable sheet 5 interposed therebetween. If it demonstrates in detail, the water storage tank 3 will be mounted on the support stand 80 and the top | upper surface part 13 in the relationship where the bottom part 33 faces the water-permeable sheet 5. FIG. It is preferable that the water storage tank 3 is fixed to the top surface part 13 using a well-known fixing tool (not shown) such as a hook or a string from the viewpoint of preventing overturning. 6 to 7 has a pair of fitting projections 82, and the pair of fitting projections 82 are inclined in the vicinity of the edge opposite to the lowest end 81 in the depth direction T. It rises in the height direction H from the surface 80. The water storage tank 3 has a concave portion corresponding to the fitting convex portion 82 at the bottom 33, and is fixed by concave and convex fitting with the fitting convex portion 82 in a state of being disposed on the inclined surface 80. According to this configuration, the water storage tank 3 can be stably placed on the inclined surface 80.

  As shown in FIG. 7, the water storage tank 3 as a whole is inclined along the inclination angle of the inclined surface 80, and as a result, the bottom 33 and the water permeable sheet 5 are also inclined along the inclination angle of the inclined surface 80. , Is disposed on the top surface portion 13. As a result, in the state in which the water storage tank 3 is disposed on the water permeable sheet 5, the side surface portion where the second drain hole 37 is provided is lower than the side surface portion where the second drain hole 37 is not provided. Inclined to be in position.

  Next, the supply path of the cooling water (7) in the cooling apparatus 2 will be described. In the cooling apparatus 2 constituting the air conditioner outdoor unit, when the cooling water 7 is stored in the water storage tank 3 that is the starting point of the supply path, The cooling water 7 is discharged from the first drain hole 36 to the water permeable sheet 5 by gravity or the like (see FIG. 7). The discharged cooling water 7 permeates the inside of the water-permeable sheet 5 radially by the so-called capillary phenomenon with the first drain hole 36 as the center. A part of the cooling water 7 soaked in the water permeable sheet 5 is further supplied to the water retaining part 42 through a contact portion between the water permeable sheet 5 and the water retaining part 42.

  According to the above-described structure, the cooling water 7 discharged from the first drain hole 36 penetrates the interior of the water permeable sheet 5 over a wide area, and then passes through the contact portion between the water permeable sheet 5 and the water retaining part 42 to the water retaining part 42. Since the water is supplied, the cooling water 7 is supplied widely and uniformly to the water retaining portion 42 regardless of the opening position and the number of the first drain holes 36.

  In addition, the support base 8 is placed on the top surface portion 13 so that the lowest end 81 of the inclined surface 80 faces the exhaust port 12 side. According to this configuration, in the supply path for supplying the cooling water 7 to the water retaining part 42, the movement of the cooling water 7 in the water permeable sheet 5 is caused by gravity based on the height difference of the inclined surface 80 in addition to the capillary phenomenon. The moving efficiency of the cooling water 7 is improved. As a result, since the cooling water 7 is smoothly supplied to the cooling unit 4 attached to the exhaust port 12, it is possible to provide an air conditioner outdoor unit that can reduce power consumption during cooling.

  On the other hand, the water storage tank 3 has a second drain hole 37, and the cooling water 7 is also discharged from the second drain hole 37 to the water permeable sheet 5. The cooling water 7 that has fallen onto the water permeable sheet 5 from the second drain hole 37 passes through the inside of the water permeable sheet 5 and is supplied to the water retaining part 42 through the contact portion between the water permeable sheet 5 and the water retaining part 42. .

  The second drainage hole 37 has a larger evaporation amount of the cooling water 7 than the drainage amount from the first drainage hole 37 in the case of extreme heat, and the water-permeable sheet 5 holds a sufficient amount of the cooling water 7. If not, it has a function of replenishing the water-permeable sheet 5 with the cooling water 7. Furthermore, as shown in FIG. 6, the second drainage hole 37 is provided with a vertical lattice portion 44 on an extension line when viewed from the front. According to this structure, the cooling water 7 that has fallen onto the water permeable sheet 5 from the second drain hole 37 reaches the water retaining part 42 formed in the vertical lattice part 44 at the shortest distance from the water permeable sheet 5, and the water retaining part 42. And smoothly flows in the height direction H. The cooling water 7 flowing along the vertical lattice portion 44 flows to the water retaining portion 42 formed in the horizontal lattice portion 45 at the intersection with the horizontal lattice portion 45, and therefore the cooling water 7 is likely to evaporate or the like. Even so, the cooling water 7 can be efficiently supplied to the entire water retaining section 42.

  From the viewpoint described above, the second drain hole 37 preferably has an open / close control device (not shown) that can adjust the discharge amount of the cooling water 7 according to the weather conditions. According to this structure, in the case of extreme heat, the opening / closing control device is opened to discharge the cooling water 7, supplying a sufficient amount of the cooling water 7 to the water permeable sheet 5 and the water retaining portion 42, and in the rain or cloudy weather. In this case, the opening / closing control device is closed to limit the discharge amount of the cooling water 7, so that the waste of the cooling water 7 can be avoided.

  Through the supply path described with reference to FIGS. 6 and 7, the cooling water 7 from the water storage tank 3 is supplied to the water retention unit 42, and the cooling water 7 is vaporized in the water retention unit 42, and is discharged from the exhaust port 12. The hot air (exhaust hot air) is cooled.

  By the way, as already explained, when trying to save electricity in ordinary households, especially during summer days when power consumption dramatically increases due to cooling, it is about half of the total power consumption of home households. Because air conditioners occupy the air-conditioner, in order to efficiently achieve power saving in ordinary households, the air-conditioner must first be saved. Further, in this type of air conditioner, exhaust hot air is released from the outdoor unit by the heat exchange action. This exhausted hot air has an adverse effect on the environment, such as contributing to the heat island phenomenon. Moreover, the surrounding air which should be attracted | sucked by an outdoor unit with exhaust hot air is warmed, and the vicious cycle that the heat exchange efficiency of an outdoor unit falls also arises. Therefore, in order to reduce adverse effects on the environment and improve the heat exchange efficiency of the outdoor unit, it is also important to cool the exhaust hot air.

  However, the conventional power saving technology related to the air conditioner cannot solve the above-described problems. For example, by installing a water storage tank on the top plate of an air conditioner outdoor unit (outdoor unit), placing a water retaining cloth on the inlet side of the outdoor unit, lifting the upper end of the water retaining cloth, and putting it in and out of the water storage tank In the cooling device that supplies cooling water to the water retaining cloth (see Patent Document 1), a driving mechanism such as a small motor is required to put the water retaining cloth in and out of the water storage tank, and accordingly, the cost increases accordingly. In addition, since the conventional cooling device sucks the water retaining cloth into the air inlet and contacts the heat exchanger, the water retaining cloth blocks the air inlet and cannot supply the necessary amount of outside air to the heat exchanger. Occurs. In addition, it is difficult to make the water retaining cloth evenly contact the surface of the heat exchanger, and the cooling effect becomes unstable. Therefore, a stable power saving effect cannot be obtained.

  Further, since this type of outdoor unit is usually arranged with the side surface on the inlet side facing the wall surface of the house, there is no sufficient gap between the outdoor unit and the wall surface of the house facing the outdoor unit. There are many cases. Therefore, in the configuration in which the water retaining cloth is arranged on the intake port side of the outdoor unit like the cooling unit, there is a problem that the cooling unit cannot be installed depending on the specific arrangement conditions of the outdoor unit.

  On the other hand, in a conventional cooling device (see Patent Document 2) in which a water retaining cloth is arranged on the exhaust port side of the outdoor unit and cools exhaust heat air, the water retaining cloth is held by the frame body in the unfolded state, and is provided on the upper part of the frame body In order to supply the cooling water to the water retaining cloth, the drain water from the outdoor unit is supplied to the water retaining cloth by supplying the drain water from the outdoor unit to the water retaining cloth. Since the piping routing space is required, there is a problem that the cooling device cannot be installed depending on the specific arrangement conditions of the outdoor unit.

  On the other hand, according to the cooling device 2 described with reference to FIGS. 1 to 7 and the air conditioner outdoor unit using the same, all the above-described problems can be solved. For example, in the cooling unit 4 constituting the cooling device 2 of FIGS. 1 to 7, a sponge-like water retaining unit 42 is attached to the base unit 41. In other words, the water retaining part 42 is supported by the base part 41. According to this configuration, from the viewpoint of cooling efficiency, the shape and dimensions of the water retaining portion 42 can be set to an optimal configuration. In addition, since the sponge-like water retention part 42 is attached to the base part 41, handling during construction work is facilitated, and construction cost can be reduced.

  The cooling effect of the cooling device 2 can be described as a result of the latent heat of vaporization of the cooling water 7 in the water retention unit 42. That is, due to the configuration in which the water retaining portion 42 has the vent hole 43, when the cooling water 7 is supplied to the water retaining portion 42, the air passing through the vent hole 43 is cooled by the latent heat of vaporization of the cooling water 7.

  Here, one of the features of the cooling device 2 of FIGS. 1 to 7 is the configuration of a mechanism (supply path) for supplying the cooling water 7 to the water retention unit 42. That is, as described with reference to FIGS. 6 and 7, the water storage tank 3 has the first and second drain holes 36 and 37, and the cooling water 7 is stored in the water storage tank 3. In this case, the cooling water 7 is discharged from the first and second drain holes 36, 37 to the water permeable sheet 5, dropped onto the water permeable sheet 5, and then supplied to the water holding unit 42 through the inside of the water permeable sheet 5. It will be.

  As long as the cooling water 7 is stored in the water storage tank 3 without using a water pump, a complicated control device, a driving power source thereof, and the like in the supply path of the cooling water 7 described above, The cooling water 7 can be continuously supplied automatically to the water retention unit 42. Therefore, it is possible to provide the cooling device 2 that can reduce the manufacturing cost, the construction cost, and the maintenance management cost.

  Moreover, in the supply path of FIG.6 and FIG.7, it supplies to the water retention part 42 through the water permeable sheet 5 from the water storage tank 3. FIG. According to this configuration, for example, the cooling water 7 discharged from the first drain hole 36 spreads into the interior of the water permeable sheet 5 by capillary action, and then water is retained through the contact portion between the water permeable sheet 5 and the water retaining part 42. Since the water is supplied to the portion 42, a wide and uniform amount of the cooling water 7 can be supplied to the water retaining portion 42 regardless of the opening position and the number of the first drain holes 36. Accordingly, the latent heat of vaporization of the cooling water 7 in the water retaining section 42 can be generated uniformly, and as a result, an even cooling effect can be produced.

  In addition, the support base 8 constituting the cooling device 2 has an inclined surface 80 whose height decreases along one direction, the water tank 3 is disposed on the inclined surface 80, and the water permeable sheet 5 is the water tank 3. Is disposed between the outer surface of the bottom 33 and the inclined surface 80. According to this configuration, in the supply path for supplying the cooling water 7 to the water retention part 42, gravity based on the height difference of the inclined surface 80 acts on the movement of the cooling water 7 in the water permeable sheet 5 in addition to the capillary phenomenon. The moving efficiency of the cooling water 7 is improved. As a result, since the cooling water 7 is smoothly supplied to the cooling unit 4, it is possible to provide the air conditioner outdoor unit cooling device 2 that can reduce power consumption during cooling.

  Each of the water storage tank 3, the cooling unit 4, and the water permeable sheet 5 constituting the cooling device 2 is combined with the outdoor unit main body 1 having a known basic configuration, and further constitutes the outdoor unit main body 1. Since it is attached to the outer surface (the top surface portion 13) of the housing 10, it can be retrofitted to an existing air conditioner outdoor unit. Therefore, it is possible to provide a cooling device capable of reducing the electricity bill by using the air conditioner and the outdoor unit main body in addition to the outdoor unit main body 1 that is currently used without newly replacing the air conditioner and the outdoor unit main body.

  In the air conditioner outdoor unit, the cooling unit 4 of the cooling device 2 covers the exhaust port 12 of the outdoor unit body 1. According to this configuration, the exhaust hot air discharged from the exhaust port 12 due to the heat exchange action of the outdoor unit main body 1 is cooled by the latent heat of vaporization of the cooling water 7 in the water retaining portion 42 as already described when passing through the vent hole 43. Therefore, adverse effects on the environment can be reduced. Moreover, since the problem of heating the surrounding air which should be attracted | sucked to an outdoor unit by exhaust hot air is avoided by cooling exhaust hot air, the power consumption of the outdoor unit main body 1 accompanying the operation is reduced. Therefore, it is possible to provide the cooling device 2 capable of reducing the power consumption during cooling, and the air conditioner outdoor unit using the same.

  In addition, the cooling effect of the cooling unit 4 is automatically and continuously exhibited as long as the cooling water 7 is discharged from the water storage tank 3, so that the ambient air to be sucked into the outdoor unit body 1 is automatically generated. Cool continuously and continuously. As a result, the efficiency of heat exchange performed between the intake air and the heat exchanger is improved, and the power consumption of the outdoor unit main body 1 accompanying the operation is reduced. Therefore, it is possible to provide the cooling device 2 capable of reducing the power consumption during cooling, and the air conditioner outdoor unit using the same.

  Furthermore, since each of the water storage tank 3, the cooling unit 4, and the water permeable sheet 5 constituting the cooling device 2 is attached to the outer surface of the housing 10 of the outdoor unit main body 1, the portion to which the cooling device 2 is attached. That is, the direct sunlight on the top surface portion 13 of the outdoor unit main body 1 and the side surface portion 14 on the exhaust port 12 side is blocked, and an increase in the temperature inside the outdoor unit main body 1 is suppressed. Therefore, the heat exchange efficiency of the outdoor unit can be improved.

  Since the water retaining part 42 is attached to the base part 41, even if the cooling part 4 is attached so as to cover the exhaust port 12, the installation posture of the water retaining part 42 is stabilized by the weight and rigidity of the base part 41. As a result, for example, the problem that the water retaining portion 42 blocks the exhaust port 12 does not occur. Therefore, an air conditioner outdoor unit that can reduce maintenance costs can be provided.

  FIG. 8 shows an embodiment of the cooling unit 4 different from those shown in FIGS. Hereinafter, the difference will be mainly described. The cooling unit 4 in FIG. 8 is a plate-like body having a honeycomb structure. More specifically, the base portion 41 is formed by punching a plate-like body mainly composed of a metal material such as aluminum or stainless steel from the viewpoint of corrosion resistance, weather resistance, impact resistance, etc. A plurality of through-holes 46 (through holes) having a regular hexagonal shape as viewed from the front are formed therein.

  The water retaining part 42 is formed with a constant thickness around the base part 41 constituting the opening edge of the through part 46, and the air holes 43 are formed in a region partitioned by the surface of the water retaining part 42. Is formed.

  As described with reference to FIG. 1 to FIG. 7, the cooling device 2 according to the present invention has the water storage tank 3 attached to the outdoor unit main body 1, and continuously keeps the cooling water 7 stored in the water storage tank 3. One of the features is that the exhaust hot air is cooled using the principle of Japanese traditional watering, that is, the heat exchange phenomenon caused by the latent heat of vaporization of the cooling water 7.

  In this regard, the embodiment of FIG. 8 also has a through-hole 46 as in FIGS. 1 to 7, and the air holes 43 are formed along the shape of the through-hole 46, so refer to FIGS. 1 to 7. Can have all the advantages described. Further, the cooling unit 4 of FIG. 8 has a honeycomb structure, and unlike the case of FIGS. 1 to 7, the water retaining unit 42 provided around the vent holes 43 crosses at an angle. When the cooling water (7) is supplied to the upper edge in a state where 4 is suspended, the cooling water (7) smoothly flows along the height direction H and the width direction W. Therefore, it is possible to provide an air conditioner outdoor unit that can improve the cooling efficiency of the cooling unit 4 and thereby reduce power consumption during cooling.

  9 and 10 show an embodiment of the cooling unit 4 different from those shown in FIGS. 1 to 8. Hereinafter, the difference will be mainly described.

  9 and 10, the base portion 41 has the same structure as that described with reference to FIGS. 1 to 8. That is, the base portion 41 is a frame body having a lattice-shaped portion inside, and includes a vertical lattice portion 44 extending in the height direction H and a horizontal lattice portion 45 extending in the width direction W, and the vertical lattice portion 44. In addition, a through portion 46 penetrating in the thickness direction T is formed inside the portion surrounded by the horizontal lattice portion 45.

  The water retaining portion 42 is a sheet-like body having a porous structure, and is attached to one surface of the base portion 41 viewed in the thickness direction T and covers the entire surface. In short, the cooling unit 4 has a so-called shoji-like structure in which the base portion 41 is a crosspiece and the water retaining portion 42 is a shoji paper. The ventilation hole 43 is exposed to the inside of the through part 46 partitioned in a lattice shape, and penetrates the water retaining part 42 covering the through part 46 in the thickness direction T.

  As described with reference to FIG. 1 to FIG. 8, the cooling effect of the cooling device 2 is explained as a result of the latent heat of vaporization of the cooling water 7 in the water retaining part 42, so The air holes 43 may have a structure that penetrates the water retaining portion 42 as a ventilation path for exhaust hot air. 9 and 10 can have all of the advantages described with reference to FIGS. Furthermore, according to the embodiment of FIG. 9 and FIG. 10, it is only necessary to attach the sheet-like water retaining part 42 to one surface of the lattice-like base part 41, so that the manufacturing cost can be reduced.

  FIG. 11 shows how the outdoor unit main body cooling unit 4 is attached to the cooling unit 4 different from those shown in FIGS. 1 to 10. Hereinafter, the difference will be mainly described.

  In the embodiment of FIG. 11, the cooling unit 4 has both side edge parts in the height direction H and both side edge parts in the width direction W by the adhesive tape 61, and the side part 14 on the exhaust port 12 side of the outdoor unit body 1. Is pasted. That is, the adhesive tape 61 of FIG. 11 has an adhesive surface on one surface, and the cooling portion 4 is attached to the side surface portion 14 by the adhesive surface contacting the cooling portion 4 and the side surface portion 14 in this order.

  The embodiment of FIG. 11 can have all of the advantages described with reference to FIGS. Furthermore, according to the embodiment of FIG. 11, since the cooling unit 4 is in direct contact with the side surface unit 14, the outdoor unit is generated by the latent heat of vaporization generated in the cooling unit 4 when cooling water is supplied to the cooling unit 4. The main body 1 is cooled as a whole, and the efficiency of heat exchange of the heat exchanger 11 is improved. Therefore, it is possible to provide the cooling device 2 capable of reducing the power consumption during cooling, and the air conditioner outdoor unit using the same.

  Unlike FIGS. 1 to 8, the manufacturing cost can be reduced by the amount that the hook 6 is not required. However, from the viewpoint of manufacturing cost, the adhesive tape 61 may have an adhesive surface on both front and back surfaces. When the adhesive tape 61 having adhesive surfaces on both front and back surfaces is used, unlike the embodiment of FIG. 11, the cooling unit 4 is attached to the side surface portion 14 with the adhesive tape 61 interposed therebetween.

  12 and 13 show an arrangement mode of the cooling unit 4 different from the outdoor unit main body cooling unit 4 shown in FIGS. 1 to 10. That is, as already described, since this type of outdoor unit is usually arranged with the side surface on the inlet side facing the wall surface 9 of the house, the outdoor unit main body 1 and the house facing this In many cases, there is no sufficient gap between the wall surface 9 and the cooling device cannot be installed depending on the specific arrangement conditions of the outdoor unit body.

  12 and 13 show an embodiment for solving the above-described problem. Hereinafter, the difference will be mainly described. In the embodiment of FIG. 12, the cooling unit 4 has two bent portions 47 that are continuous in the height direction H, and has a three-surface structure partitioned by the bent portions 47. If it demonstrates simply, the cooling part 4 will be U shape seeing from the plane, Comprising: The both ends which comprise an open side face the wall surface of a house, and are attached to the circumference | surroundings of the outdoor unit main body 1. FIG.

  On the other hand, in the embodiment of FIG. 13, the cooling unit 4 has four bent portions 47 that are continuous in the height direction H and has a four-surface structure partitioned by the bent portions 47. If it demonstrates simply, the cooling part 4 will be a square cylinder shape seen from the plane, and is attached so that the outer periphery of the outdoor unit main body 1 may be enclosed.

  Although not necessarily clear from FIGS. 12 and 13, the cooling unit 4 may be attached to the side surface of the outdoor unit main body 1 with, for example, the adhesive tape 61 of FIG. It may be erected on the ground.

  The embodiments of FIGS. 12 and 13 can have all of the advantages described with reference to FIGS. For example, since the cooling unit 4 in FIGS. 12 and 13 is arranged so as to surround the outdoor unit main body 1, it should cool the exhaust hot air discharged from the exhaust port 12 and be sucked into the outdoor unit main body 1. The surrounding air can be efficiently cooled. Similarly, the light shielding effect of the cooling unit 4 against direct sunlight is also improved.

  Furthermore, according to the embodiment of FIG. 12, the cooling unit 4 is U-shaped when viewed from the plane, and both ends constituting the open side face the wall surface of the house, so that Since it is attached, the cooling device 2 can be installed even when there is not a sufficient gap between the outdoor unit body 1 and the wall surface 9 of the house facing the outdoor unit body 1.

  Moreover, since the cooling unit 4 in FIG. 13 can be erected on the ground around the outdoor unit body 1, there is a sufficient gap between the outdoor unit body 1 and the wall surface 9 of the house facing the outdoor unit body 1. Even if it is not, the cooling device 2 can be installed.

  Although the contents of the present invention have been specifically described above with reference to the preferred embodiments, it is obvious that those skilled in the art can take various modifications based on the basic technical idea and teachings of the present invention. It is. For example, in the embodiment of FIGS. 5 and 6, the water retaining portions 42 may be provided on both surfaces of the base portion 41 as viewed in the thickness direction T, and the opening shape and the diameter of the vent holes 43 are appropriately adjusted while considering the air flow rate. can do.

  Further, the cooling device 2 according to the present invention is characterized by a supply path for supplying the cooling water 7 from the bottom 33 of the water storage tank 3 to the water retaining part 42 through the water permeable sheet 5. Therefore, when the bottom 33 of the water storage tank 3 of FIG. 3 is made of a material having water permeability such as a water permeable ceramic, the cooling water 7 can be supplied to the water permeable sheet 5 from the entire surface of the bottom 33. In the above configuration, it should be considered that the first drainage holes 36 are not present, but countless first drainage holes 36 are present inside the water-permeable ceramic constituting the bottom 33.

  Furthermore, as described with reference to FIGS. 1 to 13, the main function of the base portion 41 is to support the water retaining portion 42 and to form the through portion 46 that is the basis of the vent hole 43. It is important that the penetrating portion 46 penetrates from one surface to the other surface. For example, the opening shape of the penetrating portion 46 can be appropriately set from the viewpoint of air permeability, cooling efficiency, processing cost, and the like. In other words, the phrase “lattice” that expresses the structure of the base portion 41 is not necessarily limited to “the shape of a grid”, but widely “a bar-shaped member that intersects in two or more directions”. I would like to remind you that it should be interpreted as “a structure constructed by combination”.

DESCRIPTION OF SYMBOLS 1 Outdoor unit main body 10 Housing 100 Storage space 11 Heat exchanger 12 Exhaust port 2 Cooling device 3 Water storage tank 300 Water storage space 33 Bottom part 36 First drain hole 4 Cooling part 41 Base part 42 Water retaining part 43 Vent hole 5 Water permeable sheet 8 Support Stand 80 inclined surface

Claims (3)

A cooling device for an air conditioner outdoor unit including a support, a water storage tank, a cooling unit, and a water permeable sheet,
The support base has an inclined surface whose height decreases along one direction, and is attached to the top surface of the outdoor unit, with the lowest end of the inclined surface facing the exhaust port side of the outdoor unit,
The water tank has a water storage space and a drain hole, and is disposed on the inclined surface with the water-permeable sheet interposed therebetween,
The drainage hole opens at the bottom of the water storage tank and communicates with the water storage space.
The cooling unit has a base unit and a water retention unit, and is attached to the exhaust port side of the outdoor unit,
The water retention part is made of a porous material, is attached to the base part, and has a vent hole,
The water permeable sheet is made of a porous material, and is placed on the inclined surface so that the upper surface faces the drainage hole and directly contacts the outer surface of the bottom of the water storage tank, and one end side is the lowest end of the inclined surface. In contact with the water retaining part on the side,
Cooling system. The cooling device according to claim 1,
The base portion of the cooling portion is a lattice-shaped body or a plate-shaped body having a plurality of through holes in a plane.
Cooling system. An air conditioner outdoor unit including an outdoor unit main body and a cooling device,
The outdoor unit body has a housing and a heat exchanger,
The housing has a storage space and an exhaust port communicating with the storage space.
The heat exchanger is stored in a position facing the exhaust port in the storage space,
The cooling device includes a support base, a water storage tank, a cooling unit, and a water permeable sheet,
The support base has an inclined surface whose height decreases along one direction, and is attached to the top surface of the housing in such a relationship that the lowest end of the inclined surface faces the exhaust port side,
The water storage tank has a water storage space and a drain hole, and is disposed on the inclined surface with the water-permeable sheet interposed therebetween,
The drainage hole opens at the bottom of the water storage tank and communicates with the water storage space.
The cooling part has a base part and a water retention part, and is attached to the exhaust port side in the housing,
The water retention part is made of a porous material, is attached to the base part, and has a vent hole,
The water-permeable sheet is made of a porous material, and is placed along the inclined surface so that the upper surface faces the drain hole and directly contacts the outer surface of the bottom of the water storage tank, and one end side is the lowest of the inclined surface. In contact with the water retention part on the end side,
Air conditioner outdoor unit.

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