Cooling unit and air conditioner

Abstract

Provided is a cooling unit and an air conditioner capable of efficiently replacing a gasification filter. The cooling unit is a cooling unit of an air conditioner for cooling an air-conditioned space, and includes a gasification filter that is detachably attached and cools air passing through the filter by latent heat of water. The gasification filter includes a filter element that is rectangular in shape and has water permeate from above, and a plate member that is rectangular in shape and is provided to a side of the filter element, with a lower end of the filter element projecting downward relative to a lower edge of a surface of the plate member opposite the filter element.

Description

TECHNICAL FIELD

[0001] The present application relates to a cooling unit and an air conditioner. BACKGROUND

[0002] There is known an air conditioner of an evaporation cooling type that sucks air in a room, lowers the temperature of the environment using the heat of vaporization of water, and blows the cooled air to the room (for example, Patent Literature 1). The air conditioner (cooling fan) of Patent Literature 1 is provided with: a blowing member disposed in a housing; a first flow path that communicates a suction port with a first blow port and guides an air flow generated by the blowing member to the first blow port; a second flow path that communicates the suction port with a second blow port and guides the air flow generated by the blowing member to the second blow port; and an evaporation member disposed in the second flow path that cools air flowing in the second flow path by the heat of vaporization of water, and is provided with a heat exchanger that performs heat exchange between an air flow cooled by the evaporation member of the second flow path and an air flow flowing in the first flow path. In the second flow path provided with the evaporation member, air in which the absolute humidity is increased by mist-like water (non-evaporated sprayed water) sprayed by the evaporation member and water after evaporation (evaporated sprayed water) flows on a downstream side of the evaporation member. The air in which the humidity is increased is blown out as exhaust air from the second blow port that is an outlet of the second flow path. The air flow flowing in the first flow path that is cooled by the heat exchanger is blown out as supply air from the first blow port to an air-conditioned space.

[0003] In the air conditioner of Patent Literature 1, the air flowing in the second flow path blown by the blowing member passes through a plurality of tubes possessed by the sensible heat exchanger, and the air flowing in the first flow path blown by the blowing member passes around the plurality of tubes, whereby the air flowing in the second flow path and the air flowing in the first flow path perform heat exchange.

[0004] PRIOR ART DOCUMENTS

[0005] PATENT LITERATURE

[0006] Patent Literature 1: Japanese Patent Application Laid-Open No. 2014-092338

[0007] PROBLEMS TO BE SOLVED BY THE INVENTION

[0008] However, in the air conditioner of Patent Literature 1, there is no consideration for efficiently replacing the evaporation filter included in the evaporation member. SUMMARY

[0009] The present application has been made in view of the above circumstances, and it is an object to provide a cooling unit and an air conditioner that can efficiently replace an evaporation filter.

[0010] MEANS OF SOLVING THE PROBLEMS

[0011] The cooling unit of one embodiment of the present application is used for an air conditioner that cools a conditioned space, and includes an evaporative filter that is detachably attached and cools air passing through the evaporative filter by latent heat of water. The evaporative filter includes a filter element that is rectangular and through which water is soaked from above, and a rectangular plate member that is provided on a side surface of the filter element, and a lower end portion of the filter element protrudes downward relative to a lower edge of a surface of the plate member that faces the filter element.

[0012] In one embodiment, the evaporative filter that cools air passing therethrough by latent heat of water includes a filter element through which water is soaked from above and a rectangular plate member that is provided on a side surface of the filter element. By providing the plate member on the side surface of the filter element, the shape of the filter element, which is relatively soft, can be maintained or deformation of the shape can be suppressed by the hard plate member, and the evaporative filter can be easily attached to or detached from the cooling unit (unit main body). A lower end portion of the filter element protrudes downward relative to a lower edge of a surface of the plate member that faces the filter element. The surface of the plate member that faces the filter element is a surface that is in close contact with the side surface of the filter element (contact surface). In the height direction that is the direction in which water is soaked, the length of the filter element is longer than the length of the contact surface of the plate member that faces the filter element. By being configured in this way, the filter element can be increased in size, the amount of water soaked in the filter element can be increased, and the evaporation efficiency can be improved. Furthermore, the lower end portion of the filter element that protrudes downward relative to the plate member covers a drain pan that receives water that is not evaporated in the evaporative filter and drips down, and thus the water in the drain pan can be suppressed from splashing.

[0013] In one embodiment of the cooling unit of the present application, the evaporative filter includes a plurality of core members that pass through the filter element, and end portions of the core members are engaged with the plate member.

[0014] In one embodiment, the plurality of core members that pass through the filter element are engaged with a surface of the plate member that is in close contact with the side surface of the filter element (contact surface). By the core members, the shape of the filter element, which is relatively soft, can be maintained or deformation of the shape can be suppressed, and the evaporative filter can be easily attached to or detached from the unit main body.

[0015] In one embodiment of the cooling unit of the present application, a notch portion is provided in the filter element, the notch portion is formed by cutting a corner portion of one side on which the plate member is provided, and the length in the long side direction of the side surface on which the plate member is provided is smaller than the length in the long side direction of the side surface on which the plate member is not provided.

[0016] In the present embodiment, the length in the longitudinal direction of the side surface of the filter element on which the plate member is not provided is made smaller than the length in the longitudinal direction of the side surface on which the plate member is provided. Therefore, when the vaporization filter mounted to the unit main body is taken out, the vaporization filter can be pulled out from the side surface whose length in the longitudinal direction is made smaller by the cutout portion, and thus the taking out of the vaporization filter becomes easy, and the attachment and detachment property can be improved.

[0017] In the cooling unit of one embodiment of the present application, a holding portion is provided on the plate member, and the holding portion is held when the plate member is attached and detached.

[0018] In the present embodiment, a holding portion that is held when the plate member is attached and detached is provided on the plate member, and the holding portion is provided so as to protrude from a surface of the plate member that is opposite to a surface (close surface) that is close to the side surface of the filter element. When the vaporization filter mounted to the unit main body is taken out, the vaporization filter can be pulled out using the holding portion when the plate member is pulled out as the front side, and thus the taking out of the vaporization filter becomes easy, and the attachment and detachment property can be improved.

[0019] In the cooling unit of one embodiment of the present application, an attachment portion to which the vaporization filter is attached is provided, a rectangular insertion hole into which the vaporization filter is inserted is formed in the attachment portion, and the length in the longitudinal direction of the side surface of the filter element on which the plate member is not provided is made larger than the length in the longitudinal direction of the insertion hole.

[0020] In the present embodiment, when the vaporization filter is attached to the attachment portion provided in the unit main body, the plate member is inserted into the insertion hole formed in the attachment portion as the front side. The length in the longitudinal direction of the side surface on which the plate member is not provided is made larger than the length in the longitudinal direction of the insertion hole, but since the filter element is relatively soft, the vaporization filter can be easily inserted into the insertion hole. The filter element of the vaporization filter inserted into and attached to the attachment portion returns to the original shape, and thus the length in the longitudinal direction of the side surface on which the plate member is not provided becomes larger than the length in the longitudinal direction of the insertion hole. Thus, the flow path cross-sectional area of the filter element through which air passes can be increased, and the vaporization efficiency can be improved. In addition, the length in the longitudinal direction of the insertion hole is made smaller than the length in the longitudinal direction of the side surface of the filter element on which the plate member is not provided, and thus the outflow of water that has not been vaporized by the vaporization filter from the insertion hole can be suppressed.

[0021] In the cooling unit of one embodiment of the present application, a flange portion that protrudes from the outer edge of the plate member is provided on the plate member, and the insertion hole is closed by the flange portion.

[0022] In this aspect, the insertion hole is closed by the flange portion protruding from the outer edge of the plate member, so air can be prevented from flowing out of the insertion hole.

[0023] In the cooling unit of one aspect of the present application, a frame-shaped sealing member is provided on the face of the flange portion on the side of the insertion hole.

[0024] In this aspect, the insertion hole is closed by the flange portion protruding from the outer edge of the plate member, so air can be prevented from flowing out of the insertion hole.

[0025] In the cooling unit of one aspect of the present application, the mounting portion includes a holding portion that holds the bottom of the gasification filter, and a dust filter that is plate-shaped and that captures dust adhering to the filter element is provided on the holding portion, and a gap is formed between the dust filter and the bottom face of the filter element.

[0026] In this aspect, the gap is formed between the dust filter and the bottom face of the filter element, so when the gasification filter is pulled out from the mounting portion, the gasification filter mounted to the unit main body can be taken out without coming into contact with the dust captured by the dust filter.

[0027] In the cooling unit of one aspect of the present application, the mounting portion includes a holding portion that holds the bottom of the gasification filter, and a dust filter that is plate-shaped and that captures dust adhering to the filter element is provided on the holding portion, and the dust filter is in abutment with the bottom face of the filter element.

[0028] In this aspect, the dust filter is in abutment with the bottom face of the filter element, so when air passes through the gasification filter, air can be prevented from passing around the filter element.

[0029] In the cooling unit of one aspect of the present application, the mounting portion includes a holding portion that holds the bottom of the gasification filter, and a dust filter that is plate-shaped and that captures dust adhering to the filter element is provided on the holding portion, and the dust filter is in elastic contact with the bottom face of the filter element, so the bottom of the filter element is deflected.

[0030] In this aspect, the dust filter is in elastic contact with the bottom face of the filter element, and the gasification filter is mounted to the mounting portion of the unit main body in a state in which the bottom of the filter element is deflected. Thus, when air passes through the gasification filter, air can be further prevented from passing around the filter element.

[0031] In the cooling unit of one embodiment of the present application, the vaporization filter includes a first vaporization filter that cools first air blown into the air-conditioned space by latent heat of water and a second vaporization filter that cools second air that exchanges sensible heat with the first air by latent heat of water, and the first vaporization filter and the second vaporization filter are arranged in an L shape.

[0032] In this embodiment, the vaporization filter is composed of two vaporization filters composed of a first vaporization filter and a second vaporization filter, and thus the cooling capacity can be improved. The first vaporization filter and the second vaporization filter are attached to the main unit in an L shape, and thus the storage property can be improved and the size of the housing of the air conditioner that stores the main unit (cooling unit) can be reduced.

[0033] In the cooling unit of one embodiment of the present application, a fixing member that fixes the first vaporization filter and the second vaporization filter is provided, and the fixing member includes a first pressing portion that presses and fixes the plate member of the first vaporization filter and a second pressing portion that presses and fixes the plate member of the second vaporization filter.

[0034] In this embodiment, the fixing member of the cooling unit includes a first pressing portion that presses and fixes the plate member of the first vaporization filter and a second pressing portion that presses and fixes the plate member of the second vaporization filter, and thus the first vaporization filter and the second vaporization filter attached to the main unit can be fixed more efficiently by separate fixing members.

[0035] The air conditioner of one embodiment of the present application includes the cooling unit of one embodiment of the present application and a housing that stores the cooling unit, the first vaporization filter and the second vaporization filter are attached to the cooling unit with the plate members adjacent to each other, and in the housing, a door portion that closes an inspection hole is provided on a side surface of each of the first vaporization filter and the second vaporization filter on a side where the plate member is provided, the door portion is provided to be openable and closable, and the first vaporization filter and the second vaporization filter are attached to the housing via the inspection hole to be attachable and detachable.

[0036] In the present embodiment, the plate members of the first and second gasification filters, which are installed in an L shape, are positioned at the corners of the L shape, and the plate member of the first gasification filter and the plate member of the second gasification filter are in an adjacent state, and these gasification filters are installed in the unit main body. In the housing that accommodates the cooling unit, an inspection hole is formed in the side surface of each of the first and second gasification filters on the side where the plate member is provided, and this inspection hole is closed by a door portion during operation of the air conditioner. The first and second gasification filters are configured to be detachable in and out of the housing via the inspection hole, and therefore, during maintenance work of the air conditioner, the inside and outside of the housing are communicated via the inspection hole by opening the door portion, and the work efficiency of maintenance including replacement of the first and second gasification filters and the like can be improved.

[0037] In the air conditioner of one embodiment of the present application, the moving direction when the first gasification filter is detached with respect to the housing and the moving direction when the second gasification filter is detached with respect to the housing cross each other.

[0038] In the present embodiment, the first and second gasification filters are installed in an L shape, and therefore, the moving direction when the first gasification filter is detached in and out of the housing and the moving direction when the second gasification filter is detached in and out of the housing cross each other. By crossing the moving directions of the first and second gasification filters, a part of the space region between the moving space of the first gasification filter and the moving space of the second gasification filter for detaching these gasification filters coincides, and therefore, the size of the inspection hole can be suppressed from becoming large. That is, the inspection hole is shared by the first and second gasification filters when these gasification filters are detached, but by crossing the moving directions, the angles (entry angles) of the moving directions with respect to the inspection hole can be made different from each other, and therefore, the size of the inspection hole can be reduced, and the rigidity of the housing can be improved.

[0039] Effects of the Invention

[0040] A cooling unit and an air conditioner in which a gasification filter can be replaced efficiently can be provided. BRIEF DESCRIPTION OF DRAWINGS

[0041] Figure 1 is a schematic front view illustrating a structure of the air conditioner of Embodiment 1.

[0042] Figure 2 is a perspective view illustrating the appearance of the air conditioner.

[0043] Figure 3 is a schematic plan view illustrating a configuration of the sensible heat exchanger.

[0044] Figure 4 is a schematic perspective view illustrating a structure of the cooling unit.

[0045] Figure 5 is a schematic perspective view illustrating a structure of the gasification filter (first gasification filter, second gasification filter).

[0046] Figure 6 is a schematic side view illustrating a structure of the gasification filter (first gasification filter, second gasification filter).

[0047] Figure 7 is a schematic perspective view illustrating a structure of the mounting portion of the unit body.

[0048] Figure 8 is a schematic side view illustrating a structure of a state in which the gasification filter (first gasification filter, second gasification filter) is mounted to the mounting portion of the unit body.

[0049] Figure 9 is a schematic perspective view illustrating a structure of the fixing member (front side).

[0050] Figure 10 is a schematic perspective view illustrating a structure of the fixing member (rear side).

[0051] Figure 11 is an explanatory view illustrating a state in which the fixing member is provided.

[0052] Figure 12 is an explanatory view illustrating a state in which the fixing member is removed.

[0053] Figure 13 is an explanatory view illustrating a moving direction when the gasification filter (first gasification filter, second gasification filter) is attached or detached.

[0054] Figure 14 is a schematic side view illustrating a structure of the gasification filter (first gasification filter, second gasification filter) of Embodiment 2.

[0055] Figure 15 is a schematic side view illustrating a structure of a state in which the gasification filter (first gasification filter, second gasification filter) is mounted to the mounting portion of the unit body. DETAILED DESCRIPTION

[0056] (Embodiment 1)

[0057] Hereinafter, the embodiments will be described based on the drawings. Figure 1 is a schematic front view illustrating a structure of the air conditioner 1 of Embodiment 1. Figure 2 is a perspective view illustrating an appearance of the air conditioner 1. Further, Figure 1 is a schematic view from above illustrating a state in which Figure 2A-A line in FIG. 1. The air conditioner 1 is placed on a mobile body such as a vehicle, for example, and cools a space around an operator of the mobile body as an air-conditioned space. Alternatively, the air conditioner 1 can be placed in a house or the like. The air conditioner 1 is placed in a state as shown in FIG. 1 (front view, perspective view from above) as a normal use mode of the air conditioner 1. Figure 1 The air conditioner 1 in a placed state as shown in FIG. 1 (front view, perspective view from above) is shown front and back, right and left as a normal use mode of the air conditioner 1. Figure 2 The air conditioner 1 in a placed state as shown in FIG. 1 is shown up and down, front and back, right and left as a normal use mode of the air conditioner 1.

[0058] The air conditioner 1 has the tank 12 that stores water and a cooling unit 3 that includes two evaporative filters, the first evaporative filter 31 and the second evaporative filter 32. The air conditioner 1 cools an air-conditioned space by lowering an ambient temperature using evaporation heat of water supplied from the tank 12 through the first evaporative filter 31 and the second evaporative filter 32, and is an air conditioner of an evaporative cooling type, for example.

[0059] The cooling unit 3 includes the first evaporative filter 31 and the second evaporative filter 32, a unit body 300 to which the evaporative filters (the first evaporative filter 31 and the second evaporative filter 32) are attached and detached, a water supply portion 33, and a drain pan 34. Details of the unit body 300 will be described later. The water supply portion 33 is located at an upper portion of the first evaporative filter 31 and the second evaporative filter 32 and supplies water to the first evaporative filter 31 and the second evaporative filter 32 downward. The drain pan 34 receives water that is not evaporated in the first evaporative filter 31 and the second evaporative filter 32. Details of the cooling unit 3 will be described later.

[0060] The air conditioner 1 further has a sensible heat exchanger 4 that cools first air by exchanging heat between second air that has passed through the second evaporative filter 32 and the first air before passing through the first evaporative filter 31 and causes the cooled first air to pass through the first evaporative filter 31, thereby performing two-stage cooling of the first air. The first air is cooled without increasing humidity by passing through the sensible heat exchanger and is evaporative-cooled, thereby blowing out the first air that has been cooled in two stages as service air (SA) to an air-conditioned space. The second air is exhausted as exhaust air (EA) to the outside of the casing 11.

[0061] In the housing 11 of the air conditioner 1, two suction ports 5 that suck air from an air-conditioned space, a first blowout port 71 that blows first air that has been two-stage cooled by the sensible heat exchanger 4 and the first evaporative filter 31 as supply air to the air-conditioned space, and a second blowout port 72 that blows second air that has been subjected to sensible heat exchange with the first air by the second evaporative filter 32 and the sensible heat exchanger 4 as exhaust air are provided. The first blowout port 71 and the second blowout port 72 are provided on the same side (in this embodiment, the left side) of the housing 11.

[0062] The air conditioner 1 is provided with fans for transporting the first air and the second air, including a first fan 81 that transports the first air and a second fan 82 that transports the second air. Figure 1 The shapes of the first fan 81 and the second fan 82 in FIG. 8 represent one example of a housing shape. The fans including the first fan 81 and the second fan 82 can be, for example, centrifugal fans such as a Silo fan, or propeller fans. The first fan 81 is provided in the vicinity of the first blowout port 71, and the second fan 82 is provided in the vicinity of the second blowout port 72. That is, as the flow of air in the air conditioner 1, in the case where the two suction ports 5 are taken as the most upstream end, and the first blowout port 71 and the second blowout port 72 are taken as the most downstream end, the first fan 81 and the second fan 82 are provided on the downstream side in the direction of flow of the air, compared with the sensible heat exchanger 4 and the cooling unit 3. By providing the first fan 81 and the second fan 82 on the downstream side, these fans function as so-called suction fans, and maintain a negative pressure inside the flow path of the air in the air conditioner 1. A structure is adopted that promotes the penetration (absorption) of water from the water supply portion 33 to the first evaporative filter 31 and the second evaporative filter 32 by maintaining a negative pressure inside the flow path of the air. In this embodiment, a structure is adopted that promotes the dripping of water from the water supply portion 33 to the first evaporative filter 31 and the second evaporative filter 32, as described later.

[0063] The first fan 81 and the second fan 82 share a single fan motor 8, and are respectively fastened to shafts provided on both ends of the fan motor 8. A partition plate 83 is provided between the second fan 82 and the first fan 81, and separates the space in which the second fan 82 is provided from the space in which the first fan 81 is provided. By the partition plate 83, the first air transported by the first fan 81 and the second air transported by the second fan 82 can be prevented from mixing.

[0064] The fan motor 8, the first fan 81, and the second fan 82 are arranged in a fan chamber divided by a fan housing 84. The fan chamber is divided, for example, by the fan housing 84, which is partly composed of a heat transfer suppressing member having heat insulation properties such as foamed styrene. The partition plate 83 provided between the second fan 82 and the first fan 81 constitutes a part of the fan housing 84.

[0065] The air conditioner 1 is provided with an intake flow path 51, a branch flow path 52, a first flow path 61, and a second flow path 62 as flow paths of air. The branch flow path 52 branches the intake flow path 51 into the first flow path 61 and the second flow path 62. The intake flow path 51 is communicated with the sensible heat exchanger 4 via the branch flow path 52, starting from the two intake ports 5 located at the rear and right. The first flow path 61 is a space communicated along an arrow indicating supply air (SA) in Figure 1 The second flow path 62 is a space communicated along an arrow indicating exhaust air (EA) in Figure 1 In addition, the intake flow path 51 and the branch flow path 52 are common areas before air is distributed to the first flow path 61 and the second flow path 62. In other words, the air inside the intake flow path 51 and the branch flow path 52 is first air as well as second air.

[0066] The branch flow path 52 is communicated with two inlets of the sensible heat exchanger 4. The two inlets of the sensible heat exchanger 4 include an inlet of a first path 41 of the sensible heat exchanger 4 for the first air to flow into and an inlet of a second path 42 of the sensible heat exchanger 4 for the second air to flow into. The inlet of the first path 41 is formed in a first inlet-side opening face 431. The inlet of the second path 42 is formed in a second inlet-side opening face 432. The first path 41 constitutes a part of the first flow path 61. The second path 42 constitutes a part of the second flow path 62. That is, in the flow direction of the intake air flowing through the intake flow path 51, the branch flow path 52 and the sensible heat exchanger 4 are provided in this order downstream of the intake flow path 51.

[0067] The intake air flows into the inlet of either one of the first path 41 and the second path 42 of the sensible heat exchanger 4 in the branch flow path 52. That is, the intake air is branched into the first air flowing into the first path 41 and the second air flowing into the second path 42 in the branch flow path 52.

[0068] The dust collecting filter 53 is interposed between the two intake ports 5 and the two inlets of the sensible heat exchanger 4 (the inlet of the first path 41 and the inlet of the second path 42). The dust collecting filter 53 includes a filter portion formed of polyester fiber or olefin-based fiber that captures dust and a lattice-shaped frame that fixes the filter portion. The dust collecting filter 53 can be formed by insert molding based on resin flowing into a material of the frame after the filter portion is placed inside a resin mold. The dust collecting filter 53 constituted of the frame made of resin is flexible and is provided in a curved manner so as to cover the inlets of the first path 41 and the second path 42 of the sensible heat exchanger 4, respectively. When the dust collecting filter 53 is provided in a curved manner, a guide portion constituted of a groove or the like into which a long edge direction of the dust collecting filter 53 is fitted can be provided on an inner surface of the casing 11.

[0069] Since the first inlet-side opening surface 431 and the second inlet-side opening surface 432 are provided at different end surfaces (side surfaces) of the sensible heat exchanger 4, the dust collecting filter 53 is provided in a curved manner as shown in FIG. 6. By this, only one dust collecting filter 53 can cover the first inlet-side opening surface 431 and the second inlet-side opening surface 432. By making the dust collecting filter 53 one, the operation of attaching and detaching the dust collecting filter 53 can be reduced, and thus the working hours of the maintenance work can be reduced. Figure 1

[0070] The sealing member 531 is provided at each of both end portions of the dust collecting filter 53. The both end portions of the dust collecting filter 53 include an end portion on the first passage 41 side and an end portion on the second passage 42 side. The end portion on the first passage 41 side is located at a contact position of the first inlet-side opening surface 431 on which the inlet of the first passage 41 is provided and an inner surface of the casing 11 opposite to the first inlet-side opening surface 431. The end portion on the second passage 42 side is located between the drain pan 34 described later and the inner surface of the casing 11 near the drain pan 34. The sealing member 531 fills a gap between the inner surface of the casing 11 and the dust collecting filter 53.

[0071] The space between the two inlets (the inlet of the first passage 41 and the inlet of the second passage 42) of the sensible heat exchanger 4 and the suction port 5 is divided by the dust collecting filter 53 into an upstream side space and a downstream side space in the flow direction of the first air and the second air. In other words, the dust collecting filter 53 divides the upstream side space as a space surrounded by the casing 11 having the suction port 5 and the dust collecting filter 53 and the downstream side space as a space surrounded by the dust collecting filter 53, the first inlet-side opening surface 431, and the second inlet-side opening surface 432. The upstream side space corresponds to the intake flow path 51. The downstream side space corresponds to the branch flow path 52. The intake flow path 51 is a path commonly used by the first passage 41 and the second passage 42 at the upstream of the branch flow path 52. Therefore, with respect to the two suction ports 5, it is also possible to be commonly used in the first passage 41 and the second passage 42, and it is possible to increase the opening area of the two suction ports 5 while reducing the flow path resistance (pressure loss) in the intake air. In addition, in order to reduce the flow path resistance, a structure in which the two suction ports are connected can also be adopted. Specifically, the side surface of the casing 11 can be curved as with the dust collecting filter 53, and one suction port 5 can be formed in the curved side surface to expand the opening area. In this case, it is possible to make the volume of the upstream side space to be the minimum, and to minimize the influence of turbulence and the like that can occur in the upstream side space.

[0072] ​As described above, the sensible heat exchanger 4 is provided with a first path 41 for the first air to flow and a second path 42 for the second air to flow. The first path 41 constitutes a part of a first flow path 61 that communicates with the first blowout port 71. The second path 42 constitutes a part of a second flow path 62 that communicates with the second blowout port 72. The first path 41 and the second path 42 in the sensible heat exchanger 4 are constituted by a plurality of resin plates having a hollow structure, and are constituted by arranging these resin plates in series. By making the thickness of the resin plates thin, the heat transfer property can be improved, and the weight of the sensible heat exchanger 4 can be reduced. The hollow structure can also be constituted by metal plates.

[0073] The resin plates that constitute the first path 41 and the resin plates that constitute the second path 42 are arranged in a stacked manner perpendicular to the flow directions of the first air and the second air, and sensible heat exchange between the first air and the second air is performed via these resin plates. The first path 41 and the second path 42 form a cross flow by the first air flowing in the first path 41 and the second air flowing in the second path 42 being orthogonal to each other.

[0074] An inlet of the first path 41, an inlet of the second path 42, an outlet of the first path 41, and an outlet of the second path 42 are provided at each end surface (side surface) in the sensible heat exchanger 4. The end surface (side surface) in which the inlet of the first path 41 is provided corresponds to a first inlet-side opening surface 431. The end surface (side surface) in which the inlet of the second path 42 is provided corresponds to a second inlet-side opening surface 432. The end surface (side surface) in which the outlet of the first path 41 is provided corresponds to a first outlet-side opening surface 441. The end surface (side surface) in which the outlet of the second path 42 is provided corresponds to a second outlet-side opening surface 442. That is, the first path 41 is formed by a plurality of spaces that communicate from the first inlet-side opening surface 431 toward the first outlet-side opening surface 441 being stacked. In addition, the second path 42 is formed by a plurality of spaces that communicate from the second inlet-side opening surface 432 toward the second outlet-side opening surface 442 being stacked.

[0075] A second vaporization filter 32 is provided on the upstream side of the second inlet-side opening surface 432 in the flow direction of the second air. The second vaporization filter 32 is provided on the upstream side of the second inlet-side opening surface 432 in the flow direction of the second air. Figure 1 The second vaporization filter 32 that is rectangular in the front view has one face provided opposite the second inlet-side opening surface 432. A first vaporization filter 31 is provided on the downstream side of the first outlet-side opening surface 441 in the flow direction of the first air. The first vaporization filter 31 is provided on the downstream side of the first outlet-side opening surface 441 in the flow direction of the first air. Figure 1 The first vaporization filter 31 that is rectangular in the front view has one face provided opposite the first outlet-side opening surface 441.

[0076] The second air branched off in the branch flow path 52 passes through the second gasification filter 32, and after being cooled by the second gasification filter 32, flows into the interior of the sensible heat exchanger 4 from the inlet of the second path 42 provided in the second inlet-side opening face 432 (second path 42). The first air branched off in the branch flow path 52 flows into the interior of the sensible heat exchanger 4 from the inlet of the first path 41 provided in the first inlet-side opening face 431 (first path 41).

[0077] The first air flowing in the first path 41 and the second air flowing in the second path 42 exchange heat via the sensible heat exchanger 4. The second air flowing in the second path 42 is cooled by the second gasification filter 32, and thus the temperature of the second air is lower than the temperature of the intake air immediately after being taken in at the intake port 5. The temperature of the first air immediately after flowing into the inlet of the first path 41 is the same as (identical to) the temperature of the intake air immediately after being taken in at the intake port 5, but is cooled by the second air flowing in the second path 42 via the sensible heat exchanger 4. Specifically, the temperature of the first air is higher than the temperature of the second air, and thus heat is taken away by the second air. As a result, the first air and the second air become in a state where the temperature is lower than the temperature of the intake air and the air outside the casing 11.

[0078] The first air flowing out from the outlet of the first path 41 is further cooled by the first gasification filter 31. As a result, the first air is cooled in two stages. That is, the first air is cooled by the two cold heat sources, the second gasification filter 32 used as an indirect cold heat source via the second air and the first gasification filter 31 used as a direct cold heat source. That is, in the first stage, only sensible heat is exchanged, and in the second stage, all heat is exchanged. As a result, the wet bulb temperature becomes lower than in cooling by only gasification or sensible heat exchange and cooling based on sensible heat exchange from gasification cooling. In addition, the amount of water gasified at the time of total heat exchange can also be reduced, and thus it is also possible to prevent an unpleasant rise in humidity.

[0079] The first air flowing out from the outlet of the first path 41 of the sensible heat exchanger 4 (the outlet provided in the first outlet-side opening face 441) and passing through the first gasification filter 31 is transported by the first fan 81 located on the downstream side compared to the first gasification filter 31, and is blown out as supply air (SA) from the first blowout port 71 to the air-conditioned space. It can also be that a blowout duct 711 composed of, for example, a corrugated structure is provided in the first blowout port 71, and the first air is blown out as supply air (SA) to a blowout direction adjusted by the blowout duct 711. As a result, it is possible to cool the surrounding space of the operator of the moving body as the air-conditioned space. The first fan 81 is located on the downstream side compared to the first gasification filter 31, but is not limited thereto, and the first fan 81 can also be located on the upstream side compared to the first gasification filter 31.

[0080] The second air flowing out from the outlet of the second passage 42 of the sensible heat exchanger 4 (provided at the outlet of the second outlet-side opening face 442) is transported by the second fan 82 located at the downstream side compared to the outlet of the second passage 42 of the sensible heat exchanger 4, and is blown out as exhaust air (EA) to the outside of the casing 11 from the second blowout port 72.

[0081] The first blowout port 71 and the second blowout port 72 are provided at the same side (in this embodiment, the left side) of the casing 11. The second blowout port 72 is directed toward the direction of the first blowout port 71, and the exhaust air (EA) blown out from the second blowout port 72 can also be blown out toward the vicinity of the periphery of the blowout duct 711 attached to the first blowout port 71. More specifically, the second blowout port 72 is provided in the forward direction compared to the second fan 82, so that the second air transported from the second fan 82 is blown out in the left front direction. In addition, in the case where the blowout duct 711 is present, it is possible to suppress the rise in the external temperature of the blowout duct 711 due to direct sunlight or lighting.

[0082] As illustrated in this embodiment, a door portion 111 configured to be opened and closed is provided at the side of the casing 11 where the two suction ports 5, the first blowout port 71, and the second blowout port 72 are not provided. The side where the door portion 111 is provided is the side corresponding to the portion where the end portion of the first gasification filter 31 and the end portion of the second gasification filter 32 are adjacent to each other, and is the side closest to the first gasification filter 31 and the second gasification filter 32. By opening the door portion 111 (set to the open state), it is possible to access the inside from the outside of the casing 11, so that it is possible to perform maintenance work such as replacement of the first gasification filter 31 or the second gasification filter 32. It is preferable that the door portion 111 be fixed to the casing 11 in such a structure that one end portion of the door portion 111 other than the upper end portion is linked to the casing 11 by a hinge, and the end portion of the door portion 111 opposite to the end portion linked by the hinge is fixed to the casing 11 by a lock mechanism configured to be opened and closed. Thereby, it is possible to prevent the door portion 111 from falling off at the time of opening, and it is easy to maintain the open state at the time of maintenance. A fixing member 38 is provided at the portion where the end portion of the first gasification filter 31 and the end portion of the second gasification filter 32 are adjacent to each other, and abuts against each of these end portions, and the fixing member 38 fixes the first gasification filter 31 and the second gasification filter 32 by pressing these end portions in the state where the door portion 111 is closed. The configuration relationship and the like of the door portion 111, the fixing member 38, and the gasification filters (the first gasification filter 31 and the second gasification filter 32) including the maintenance work such as replacement of the above-described first gasification filter 31 and second gasification filter 32 will be described later.

[0083] When the maintenance work is performed, after the door portion 111 is opened, the first gasification filter 31 and the second gasification filter 32 can be attached and detached by being slid in the horizontal direction, and the height of the housing 11, that is, the height of the product can be reduced. Thus, the maintainability can be improved.

[0084] Only one side surface of the first gasification filter 31 and the second gasification filter 32 is integrally formed with a resin member or the like, that is, a plate member 36 (see FIG. 6). Thus, the maintainability of the first gasification filter 31 and the second gasification filter 32 can be improved, and the leakage of air from the respective assembly portions of the first gasification filter 31 and the second gasification filter 32, that is, the flow of air without passing through the assembly portions can be suppressed. Figure 5 ). Thus, the maintainability of the first gasification filter 31 and the second gasification filter 32 can be improved, and the leakage of air from the respective assembly portions of the first gasification filter 31 and the second gasification filter 32, that is, the flow of air without passing through the assembly portions can be suppressed.

[0085] A handle portion or a grip portion 361 is provided to the resin member (the plate member 36) integrally formed with one side surface of the first gasification filter 31 and the second gasification filter 32. When the maintenance work is performed, the worker can easily attach and detach the first gasification filter 31 and the second gasification filter 32 by holding the handle portion, and the maintainability can be improved.

[0086] The two gasification filters constituted by the first gasification filter 31 and the second gasification filter 32 can be extracted in a cross relationship. By providing such a structure, the common use of components can be achieved, and the cost reduction due to the reduction of the cost of components can be achieved. In addition, the first gasification filter 31 and the second gasification filter 32 are extracted from the inspection port space which is limited in accordance with the size of the housing 11, and the size of the housing 11, that is, the product size can be reduced.

[0087] A pressing portion or the like which fixes the first gasification filter 31 and the second gasification filter 32 so that the two gasification filters constituted by these gasification filters do not move is provided, and the pressing portion (the fixing portion) pressure-bonds the door portion 111 by contacting and pressing a portion of the door portion 111. By providing such a structure, the leakage of the first air and the second air, that is, the mixing of the first air and the second air can be suppressed. Furthermore, the misalignment of the gasification filter due to vibration or the like can be suppressed. Moreover, when the gasification filter is attached and detached at the time of the maintenance work or the like, the gasification filter can be prevented from being in a state where it is not properly set.

[0088] A suppression member for suppressing air from intruding into the first flow path 61 without passing through the first vaporization filter 31 can also be provided on the inner surface of the door portion 111. The suppression member is formed of a sealing material, for example, and functions as a seal by being sandwiched by the inner surface of the door portion 111 and the edge portion of the first vaporization filter 31 or the end surface of the fixing member 38 when the door portion 111 is closed (closed state), thereby suppressing the intrusion of air into the first flow path 61 without passing through the first vaporization filter 31.

[0089] The air conditioner 1 is provided with a tank 12 that stores water supplied to the first vaporization filter 31 and the second vaporization filter 32. The tank 12 is configured separately from the housing 11 that houses the first vaporization filter 31 and the second vaporization filter 32 and the like. In the air conditioner 1, the housing 11 that constitutes the main body and the tank 12 configured separately are connected (communicate) by a supply water path 91 and a recovery water path 92. Water supplied from the tank 12 to the first vaporization filter 31 and the second vaporization filter 32 housed in the housing 11 flows in the supply water path 91. Water that is not vaporized in the first vaporization filter 31 and the second vaporization filter 32 flows in the recovery water path 92 and is recovered by the tank 12. The supply water path 91 and the recovery water path 92 are configured by a hose based on a soft resin or a pipe based on a hard resin. In the case of being provided in a mobile body as in the present embodiment, the tank 12 is preferably provided on the back or the feet of an operator who is likely to supply water and replace it. In addition, in order to ensure the visibility of the operator and prevent water from leaking when the operator is operating, the supply water path 91 and the recovery water path 92 are preferably tied to a column of a head guard or the like.

[0090] A water supply pump 913 and a supply water sensor are provided in the supply water path 91. In the case where the housing 11 and the tank 12 are placed at different positions and a difference in height (head) is generated between the housing 11 and the tank 12, water can be supplied from the tank 12 located below to the housing 11 located above by the water supply pump 913 having a water supply capacity corresponding to the head. The supply water sensor is provided in the inside of the supply water path 91, for example, and outputs a sensor value (detection value) corresponding to the amount of water flowing in the supply water path 91.

[0091] A portion of the supply water path 91 extending from the tank 12 is housed inside the casing 11 and communicates with the water supply portion 33 installed above the first and second gasification filters 31 and 32. The portion of the supply water path 91 housed inside the casing 11 is provided in the upstream side space (suction flow path 51) divided by the dust collecting filter 53. When the air conditioner 1 is placed on a mobile body and used outdoors, the temperature of the water in the tank 12 is heated by direct sunlight or the like and can be higher than the outside air temperature (temperature of the suction air). Even in such a case, the water (supply water) flowing in the supply water path 91 in the upstream side space (suction flow path 51) exchanges heat with the suction air flowing in the suction flow path 51, the water (supply water) is cooled by the suction air, and the cooling efficiency in the air conditioner 1 can be improved. The outer peripheral surface of the supply water path 91 arranged in the upstream side space can be provided with fins or the like, for example, to improve the heat transfer efficiency by increasing the heat transfer area when exchanging heat with the suction air. In addition, as a structure for cooling the water in the supply water path 91, the supply water path 91 can pass downstream of the sensible heat exchanger 4 of the second flow path 62.

[0092] The water (supply water) flowing into the water supply portion 33 is divided into the first supply water path 911 on the first gasification filter 31 side and the second supply water path 912 on the second gasification filter 32 side, dripped to the first gasification filter 31 through the first water supply hole 331 provided in the water supply portion 33, and dripped to the second gasification filter 32 through the second water supply hole 332. The water dripped to the first and second gasification filters 31 and 32 respectively soaks the first and second gasification filters 31 and 32. At this time, the water (supply water) is sequentially dripped from the first and second water supply holes 331 and 332 due to the water pressure based on the water supply pump 913, the weight of the water, and the negative pressure inside the first and second flow paths 61 and 62.

[0093] The water soaked in the first and second gasification filters 31 and 32 is gasified when the first and second air pass through, but depending on the relative humidity of the environment in which the air conditioner 1 is used and the amount of water supplied, a portion of the supplied water flows in a liquid state into the drain pan 34 located below the first and second gasification filters 31 and 32.

[0094] As illustrated in the present embodiment, the water supply pump 913 and the recovery pump 923 are arranged above the sensible heat exchanger 4. The water supply pump 913 is provided in the supply water path 91 in which the casing 11 (main body) and the tank 12 (sub body) communicate the supply water path 91, for example, via a stop valve (lock valve), similarly to Embodiment 1.

[0095] The recovery pump 923 and the supply water pump 913 can be placed above the sensible heat exchanger 4 in a lateral row, and these pumps can be accessed by opening the top plate of the casing 11. Thus, the work efficiency of the inspection or replacement of the recovery pump 923 and the supply water pump 913 at the time of maintenance of the air conditioner 1 or the like can be improved. By placing the supply water pump 913 and the recovery pump 923 in a lateral row, it is not necessary to place them in the upper and lower spaces, respectively, and the height of the casing 11 can be reduced to achieve the miniaturization of the product.

[0096] The water (supply water) sucked up from the tank 12 by the supply water pump 913 is supplied to the supply water portions 33 (the first supply water portion 33A and the second supply water portion 33B) via the supply water path 91. The supply water path 91 between the supply water pump 913 and the first supply water portion 33A and the second supply water portion 33B is provided with a branch path that branches into the first supply water path 911 and the second supply water path 912. The branch path can be located above the sensible heat exchanger 4. The first supply water path 911 and the second supply water path 912, which are branched by the branch path formed in the supply water path 91, are connected to the first supply water portion 33A and the second supply water portion 33B. That is, the first supply water path 911 communicates with the first supply water portion 33A, and the second supply water path 912 communicates with the second supply water portion 33B.

[0097] The water (supply water) that flows into the first supply water portion 33A via the first supply water path 911 is dripped to the first gasification filter 31 via the first supply water hole 331, as in Embodiment 1. The water (supply water) that flows into the second supply water portion 33B via the second supply water path 912 is dripped to the second gasification filter 32 via the second supply water hole 332, as in Embodiment 1.

[0098] The drain pan 34 communicates with the tank 12 via the recovery water path 92. The recovery pump 923 is provided in the recovery water path 92 in which the casing 11 (main body) and the tank 12 (sub body) communicate with each other via, for example, a stop valve (lock valve). The water (recovery water) that falls to the drain pan 34 is recovered by the tank 12 via the recovery water path 92.

[0099] Also, the water that flows down from the first gasification filter 31 and the second gasification filter 32 can be concentrated at one location in the drain pan 34 to join the recovery water path 92 and be connected to the recovery pump 923. That is, in the drain pan 34, the first recovery water path 921 after the first gasification filter 31 and the second recovery water path 922 after the second gasification filter 32 can also be concentrated (joined) at one location. By being configured in this way, for example, even in the case where the air conditioner 1 is placed on a mobile body and the housing 11 is inclined due to the movement of the mobile body, the water that flows down from the first gasification filter 31 and the second gasification filter 32 can be concentrated at one location in the drain pan 34, that is, at the communication hole that communicates with the recovery water path 92, and the water can be reliably delivered by the recovery pump 923. That is, in the case where, for example, the drain pan 34 is provided with a plurality of communication holes, when the housing 11 is inclined, air can be drawn in by the recovery pump 923 from an arbitrary communication hole and water cannot be drawn in from the other communication hole. By concentrating the water that flows down from the first gasification filter 31 and the second gasification filter 32 at one location in the drain pan 34 and delivering it by the recovery pump 923 via the recovery water path 92, the water can be reliably recovered to the tank 12.

[0100] The tank 12 communicates with the first gasification filter 31 and the second gasification filter 32 via the supply water path 91 and the recovery water path 92. Therefore, a circulation loop is formed in which water is recovered (returned) to the tank 12 via the tank 12, the supply water path 91, the water supply portion 33, the first gasification filter 31 and the second gasification filter 32, the drain pan 34, and the recovery water path 92. By this circulation loop, water that has not been gasified in the first gasification filter 31 and the second gasification filter 32 can be efficiently recovered into the tank 12, the amount of water remaining in the interior of the housing 11 can be reduced, and the degree of hygiene in the housing 11 can be improved.

[0101] Figure 3 is a schematic plan view illustrating the configuration of the sensible heat exchanger 4. Figure 3 Part of the structure such as the dust collection filter 53 and the water supply portion 33 is omitted. The sensible heat exchanger 4 has a rectangular shape in an elevation view and has, for example, the appearance of a rectangular parallelepiped. The first path 41 and the second path 42 provided in the sensible heat exchanger 4 are orthogonal, and in the present embodiment, the intersection angle of the first path 41 and the second path 42 is, for example, 90°.

[0102] The sensible heat exchanger 4 has a first inlet-side opening surface 431, a second inlet-side opening surface 432, a first outlet-side opening surface 441, and a second outlet-side opening surface 442 as end surfaces (side surfaces), and the angle formed by each of the adjacent end surfaces (side surfaces) is, for example, 90°. The first inlet-side opening surface 431, the second inlet-side opening surface 432, the first outlet-side opening surface 441, and the second outlet-side opening surface 442 are arranged in this order in the circumferential direction when the sensible heat exchanger 4 is viewed in the front view. That is, the first inlet-side opening surface 431 is adjacent to the second inlet-side opening surface 432, the second inlet-side opening surface 432 is adjacent to the first outlet-side opening surface 441, the first outlet-side opening surface 441 is adjacent to the second outlet-side opening surface 442, and the second outlet-side opening surface 442 is adjacent to the first inlet-side opening surface 431.

[0103] The sensible heat exchanger 4 is housed in the casing 11 in such a manner that the inner surface of the casing 11 and the end surface of the sensible heat exchanger 4 opposite to the inner surface form an acute angle. For the following description, an angle formed by the inner surface of the front side of the casing 11 and the first outlet-side opening surface 441 is positioned at an angle θ. The angle θ is, for example, an acute angle greater than 10 degrees and less than 50 degrees. The lower limit value of the angle θ is set to 10 degrees for the purpose of securing the path diameter of the first flow path 61. Further, the upper limit value of the angle θ can be determined by the arrangement of the fan motor 8 and the electrical unit 13 downstream of the second path 42 and the arrangement of the partition plate 83. Specifically, the angle θ can be set in such a manner that the left end portion of the first outlet-side opening surface 441 can be connected to the right end portion of the partition plate 83. Further, in order to cause the second air to also flow through the fan motor 8 and the electrical unit 13, it is preferable to adopt a structure in which the left end portion of the first outlet-side opening surface 441 and the right end portion of the partition plate 83 are arranged in front of the rear end portion of at least one of the fan motor 8 and the electrical unit 13, and the upper limit value of the angle θ is determined. Thereby, the second air easily flows into the fan motor 8 and the electrical unit 13, and the cooling efficiency of the fan motor 8 and the electrical unit 13 can be improved. Since the inner surface of the casing 11 and the end surface of the sensible heat exchanger 4 opposite to the inner surface are in a parallel state (attitude position) in which the angle formed is 0 degrees, the sensible heat exchanger 4 is housed in the casing 11 in a state in which it is rotated by an angle θ corresponding to the acute angle. Thereby, since the casing 11 is, for example, a rectangular parallelepiped and the sensible heat exchanger 4 is a cube, the angle of the first inlet-side opening surface 431 and the inner surface of the rear side of the casing 11 opposite to the first inlet-side opening surface 431 and the angle of the first outlet-side opening surface 441 and the inner surface of the front side of the casing 11 opposite to the first outlet-side opening surface 441 become equal values. By housing the sensible heat exchanger 4 in the casing 11 in a state in which it is rotated by a predetermined rotation angle as described above, the area (heat exchange area) in which heat exchange is possible in the sensible heat exchanger 4 can be secured to be large with respect to the size of the casing 11. Further, by setting θ to an angle in a range greater than 10 degrees and less than 50 degrees and not 45 degrees, the length in the front-rear direction and the left-right direction of the casing 11 can be reduced compared to the case in which it is set to 45 degrees. Thereby, the length of the casing 11 in the front-rear direction and the left-right direction with respect to the heat exchange area can be suppressed, and thus the size can be reduced. Similarly, the first gasification filter 31 and the second gasification filter 32 are arranged along the second inlet-side opening surface 432 and the first outlet-side opening surface 441 of the sensible heat exchanger 4, and thus the length of the cooling unit 3 in the left-right direction can be shortened, and the area of the door portion 111 provided for maintenance can also be reduced.

[0104] By rotating the housing 11 by an angle θ equivalent to a predetermined acute angle, the inter-surface distance between the first outlet side opening surface 441 and the inner surface of the front side of the housing 11 opposite to the first outlet side opening surface 441 can be gradually increased towards the downstream side of the first air. Specifically, as Figure 3 As shown, the inter-surface distance increases progressively closer to the first outlet 71 (d3 > d2 > d1). That is, the inter-surface distance between the first outlet side opening 441 at the downstream end and the inner surface of the housing 11 is maximized. This reduces the flow resistance (pressure loss) when the first air flows out from the first outlet side opening 441. Furthermore, the inter-surface distance between the second inlet side opening 432 and the inner surface of the right side of the housing 11 opposite to the second inlet side opening 432 decreases further away from the first outlet side opening 441 (k3 > k2 > k1).

[0105] The first vaporization filter 31, facing the first outlet side opening 441, and the second vaporization filter 32, facing the second inlet side opening 432, are arranged in an L-shape and can be easily installed and removed from the unit body 300. The unit body 300 also includes a drain tray 34 located below. Therefore, the first vaporization filter 31 and the second vaporization filter 32 installed on the unit body 300 can also be fastened to the outer casing covering the drain tray 34. In this case, the outer casing covering the drain tray 34 functions as a fastening component to secure the first vaporization filter 31 and the second vaporization filter 32. The angle (β) formed by the L-shaped bending of the first vaporization filter 31 and the second vaporization filter 32 is greater than or equal to the intersection angle (α) of the first path 41 and the second path 42, for example, 60 degrees to 120 degrees. Furthermore, considering, for example, the case where the sensible heat exchanger 4 is rhomboid, and expressing the relationship between angle (β) and angle (α) mathematically, β is preferably approximately α ± 30 (degrees). By bending the first vaporization filter 31 and the second vaporization filter 32 into an L-shape, these filters can be arranged along the corner of the sensible heat exchanger 4 along the inner side of the L-shape formed by the end faces of each of the first vaporization filter 31 and the second vaporization filter 32. This improves the storability of the first vaporization filter 31 and the second vaporization filter 32, enabling miniaturization of the housing 11. Figure 3In the first outlet-side opening face 441 and the length of the first gasification filter 31, the length of the first gasification filter 31 is slightly shorter for the purpose of miniaturization. However, the length of the first gasification filter 31 can be appropriately changed. As an example, the length of the first outlet-side opening face 441 and the first gasification filter 31 is preferably determined in such a manner that the flow path sectional area becomes the same degree. Thereby, pressure loss caused by a change in the flow path sectional area can be reduced. In addition, a wall face (sealing member) that defines a flow path in such a manner that the first air that has passed through the first outlet-side opening face 441 passes through the first gasification filter 31 is preferably provided between the first outlet-side opening face 441 and the first gasification filter 31. The wall face can be formed in the housing of the first gasification filter 31, or can be formed in a member that fixes the sensible heat exchanger 4. As for the second gasification filter 32, it can be appropriately changed in the same manner as the first gasification filter 31. In the second inlet-side opening face 432 and the length of the second gasification filter 32, the length of the second gasification filter 32 is slightly shorter for the purpose of miniaturization. However, the length of the second gasification filter 32 can be appropriately changed. As an example, the length of the second outlet-side opening face 442 and the second gasification filter 32 is preferably determined in such a manner that the flow path sectional area becomes the same degree. Thereby, pressure loss caused by a change in the flow path sectional area can be reduced. In addition, a wall face that defines a flow path in such a manner that the second air that has passed through the second outlet-side opening face 442 passes through the second gasification filter 32 is preferably formed between the second outlet-side opening face 442 and the second gasification filter 32.

[0106] Figure 4 is a schematic perspective view illustrating a structure of the cooling unit. The cooling unit 3 is provided with a unit main body 300, a first gasification filter 31, a second gasification filter 32, a drain pan 34, and a water supply portion 33 including a first water supply portion 33A and a second water supply portion 33B that are separately configured. The first gasification filter 31 and the second gasification filter 32 are detachably attached to the unit main body 300, and the drain pan 34 is provided below the unit main body 300. A fixing member 38 that fixes the first gasification filter 31 and the second gasification filter 32 is provided at a portion where an end portion of the first gasification filter 31 is adjacent to an end portion of the second gasification filter 32, that is, a portion corresponding to a corner portion of an L shape constituted by the first gasification filter 31 and the second gasification filter 32.

[0107] The drain pan 34 is, for example, resin or metal, and has a disc shape with an opening face on the upper side. The drain pan 34 is curved in an L shape in an elevation view. The first gasification filter 31 and the second gasification filter 32 are placed on regions that constitute sides of the L shape. The first gasification filter 31 and the second gasification filter 32 are arranged in an L shape by being placed on the drain pan 34.

[0108] The first water supply portion 33A is disposed at the upper portion of the first gasification filter 31, and the second water supply portion 33B is disposed at the upper portion of the second gasification filter 32. Thus, the first water supply portion 33A and the second water supply portion 33B are disposed in an L shape like the first gasification filter 31 and the second gasification filter 32. By being configured in this way, the housing of the cooling unit 3 can be configured in an L shape, and thus the cooling unit 3 can be made more compact, and the housing 11 of the air conditioner 1 that houses the cooling unit 3 can be made more compact.

[0109] In the drawing of the present embodiment, the structure of the first water supply portion 33A that constitutes the water supply portion 33 is described based on the first water supply portion 33A. The first water supply portion 33A is a box having a hollow structure. A plurality of first water supply holes 331 are provided in the bottom surface of the first water supply portion 33A in the longitudinal direction of the container portion 333. That is, the first water supply holes 331 are provided in the longitudinal direction of the first gasification filter 31 on which the first water supply portion 33A is disposed. As an example, the first water supply holes 331 are disposed in point symmetry in the longitudinal direction with the first water supply hole 331 provided at the center of the container portion 333 as the center point. The first water supply holes 331 provided in the container portion 333 can also be disposed closer to the upstream side of the first air by disposing the container portion 333 on the upstream side of the first air passing through the first gasification filter 31. The second water supply portion 33B is configured in the same way as the first water supply portion 33A, and a plurality of second water supply holes 332 are provided in the bottom surface of the second water supply portion 33B in the longitudinal direction of the container portion 333. The structure related to the second water supply portion 33B is described by replacing the description of the first water supply portion 33A with the description of the second water supply portion 33B.

[0110] The first gasification filter 31 and the second gasification filter 32 are disposed in an L shape by being detachably mounted to the unit body 300. The unit body 300 includes a drain pan 34 provided on the lower side, and the first gasification filter 31 and the second gasification filter 32 are disposed in an L shape by being disposed on the L-shaped drain pan 34. The angle of the first gasification filter 31 and the second gasification filter 32 constituting the L shape is, for example, 60 degrees to 120 degrees. By disposing the first gasification filter 31 and the second gasification filter 32 in an L shape in this way, the inner side of the L shape can be directed toward the corner of the sensible heat exchanger 4 having a rectangular shape, and the first gasification filter 31 and the second gasification filter 32 can be disposed along the corner, and thus the cooling unit 3 can be made more compact.

[0111] The first gasification filter 31 and the second gasification filter 32 include a rectangular filter element 35 formed of, for example, rayon / polyester fiber, nonwoven fabric, or the like. The first gasification filter 31 and the second gasification filter 32 have water absorption, and gasification of water (supply water) supplied from the tank 12 is promoted by the water being soaked into the entire surface of the first gasification filter 31 and the second gasification filter 32 (the filter element 35).

[0112] Figure 5 is a schematic perspective view illustrating a structure of a gasification filter (the first gasification filter 31, the second gasification filter 32). Figure 6 is a schematic side view illustrating a structure of a gasification filter (the first gasification filter 31, the second gasification filter 32). The first gasification filter 31 and the second gasification filter 32 attached to the unit body 300 of the cooling unit 3 include a rectangular filter element 35 and a rectangular plate member 36 provided to the side surface of the filter element 35, and can be the same member (common member) composed of the same structure and shape.

[0113] The filter element 35 is composed of, for example, a soft material such as rayon / polyester fiber, nonwoven fabric, or the like that allows deformation by an external force. The filter element 35 has water absorption, and gasification of water (supply water) supplied from the tank 12 is promoted by the water being soaked into the entire surface of the filter element 35. The filter element 35 has a rectangular shape or a square shape in a side view, and has a cuboid shape corresponding to the thickness of the filter element 35.

[0114] In the rectangular filter element 35, a notch portion 351 is provided to the lower corner (in this embodiment, the lower left corner) in the flow direction of the water dripping down. A step structure is formed on the lower surface of the filter element 35 by the notch portion 351. The step structure is not limited to a one-stage step structure, and can be a multi-stage step structure of two stages or more. In addition, the notch portion 351 is not limited to forming such a step structure, and can be, for example, a tapered shape in which the corner is cut obliquely. The left and right side surfaces formed by the thickness of the filter element 35 are each a rectangular shape that is longer in the up-down direction. In the two side surfaces of the filter element 35, the length of the long side direction of the side surface on the side on which the notch portion 351 is provided is smaller than the length of the long side direction of the side surface on the side on which the notch portion 351 is not provided.

[0115] The side surface on the side on which the notch portion 351 is provided is provided with the plate member 36 composed of, for example, resin or the like. That is, the inner face of the plate member 36 opposes the side surface on the side on which the notch portion 351 is provided, and the plate member 36 is attached to the side surface of the filter element 35. The area of the rear surface of the plate member 36 opposing the side surface on the side on which the notch portion 351 is provided is equal to or smaller than the area of the side surface.

[0116] The upper end of the plate member 36 is aligned with the upper end of the filter element 35 in such a manner that the same position is obtained in the up-down direction, and the plate member 36 is disposed. The lower end of the plate member 36 is aligned with the lower end of the filter element 35 in such a manner that the lower end of the plate member 36 is slightly above the lower end of the filter element 35, and the plate member 36 is disposed. Alternatively, the lower end of the plate member 36 can be aligned with the lower end of the filter element 35 in such a manner that the same position is obtained in the up-down direction, and the plate member 36 can be disposed.

[0117] In the plate member 36, a flange portion 362 protruding from the outer edge of the plate member 36 of the front surface on the side opposite to the filter element 35 is provided. By providing the flange portion 362 on the front surface, the area of the front surface becomes larger than the area of the rear surface.

[0118] A plate-shaped grip portion 361 is provided on the front surface. The grip portion 361 is provided protruding from the front surface in the vertical direction. Alternatively, a recess can be provided on the front surface at a position inside compared to the flange portion 362, and the grip portion 361 can be provided protruding from the bottom surface of the recess. The protruding height of the grip portion 361 can be larger than the depth of the recess.

[0119] A frame-shaped (rectangular ring-shaped) frame-shaped sealing member 363 is provided on the peripheral edge portion of the face (inner face of the flange portion 362) of the flange portion 362 on the filter element 35 side, and the frame-shaped sealing member 363 is adhered along the peripheral edge of the flange portion 362. The frame-shaped sealing member 363 is, for example, composed of an EPDM foam.

[0120] A plurality of core members 37 are provided penetrating through the filter element 35, and the end portions of the core members 37 are engaged with the rear surface of the plate member 36. The core members 37 are, like the plate member 36, made of resin or the like, and penetrate through the filter element 35 in the vertical direction (left-right direction) with respect to the dropping direction of water (up-down direction).

[0121] The filter element 35, the plate member 36, and the vaporization filter including the plate member 36 (the first vaporization filter 31 and the second vaporization filter 32) can be formed by insert molding based on the flow of resin as a material of the plate member 36 and the plate member 36 into a resin mold after the filter element 35 is placed inside the resin mold.

[0122] Figure 7 is a schematic perspective view illustrating a structure of the mounting portion 301 of the unit main body 300. Figure 8is a schematic side view of a structure illustrating a state in which the gasification filter (first gasification filter 31, second gasification filter 32) is installed in the mounting portion 301 of the unit body 300. The unit body 300 includes the mounting portion 301 that constitutes the housing of the cooling unit 3 and to which the gasification filter (first gasification filter 31, second gasification filter 32) is detachably installed. It can be that the unit body 300 includes the drain pan 34 located below the installed first gasification filter 31 and second gasification filter 32, or it can be that the drain pan 34 is separately constituted from the unit body 300 and is configured to be detachable from the unit body 300.

[0123] The unit body 300 is provided with two mounting portions 301 based on the mounting portion 301 for the first gasification filter 31 and the mounting portion 301 for the second gasification filter 32. The mounting portion 301 for the first gasification filter 31 is a rectangular frame and includes an insertion hole 304 into which the first gasification filter 31 is inserted and a holding portion 302 that holds the bottom of the inserted first gasification filter 31.

[0124] The mounting portion 301 for the second gasification filter 32 also has the same structure as the mounting portion 301 for the first gasification filter 31. The two mounting portions 301 into which the first gasification filter 31 and the second gasification filter 32 are respectively inserted are arranged in the unit body 300 in such a manner as to become an L shape.

[0125] The insertion hole 304 is constituted by the inner edge of the frame of the mounting portion 301 and is a rectangular hole portion that is longer in the vertical direction than the side surface of the filter element 35. The portion of the insertion hole 304 of the mounting portion 301 for the first gasification filter 31 that is adjacent to the insertion hole 304 of the mounting portion 301 for the second gasification filter 32 corresponds to the corner portion of the L shape formed by the two mounting portions 301.

[0126] The first gasification filter 31 and the second gasification filter 32 have the side surface of the side on which the plate member 36 is not provided facing the respective insertion holes 304 and are inserted from the insertion holes 304 and installed in the respective mounting portions 301. The installed first gasification filter 31 and second gasification filter 32 are housed inside the frame of the mounting portion 301.

[0127] The holding portion 302 is an open-top box in which a plurality of communication holes that communicate with the drain pan 34 are provided. In a state in which the first gasification filter 31 and the second gasification filter 32 are installed in the mounting portion 301, the bottoms (lower portions) of the filter elements 35 of these first gasification filter 31 and second gasification filter 32 are located inside the box of the holding portion 302 and are held by the holding portion 302.

[0128] A dust filter 303 in the form of a plate is provided on the bottom surface of the case, with the lower surface of the dust filter 303 facing the bottom surface of the case, and the dust filter 303 is housed inside the case. By providing the dust filter 303, even if dust is contained in the water dripping downward from the filter element 35 in a liquid state without being vaporized from the water supply portion 33, the dust can be captured by the dust filter 303. The dust filter 303 is detachable and can be cleaned.

[0129] The size relationship between the insertion hole 304 of the mounting portion 301 and the vaporization filter (first vaporization filter 31, second vaporization filter 32) will be described based on the state in which the first vaporization filter 31 is mounted to the mounting portion 301. Further, the second vaporization filter 32 is of the same structure as the first vaporization filter 31, and the state in which the second vaporization filter 32 is mounted to the mounting portion 301 is described by replacing the description related to the first vaporization filter 31 with the description related to the second vaporization filter 32.

[0130] A cutout portion 351 is provided in the filter element 35 of the first vaporization filter 31, and thus a stepped structure is formed on the lower surface of the filter element 35. Thus, in the filter element 35, the length (h2) in the longitudinal direction of the side surface on the side on which the cutout portion 351 is provided is smaller than the length (h3) in the longitudinal direction of the side surface on the side on which the cutout portion 351 is not provided (h2

[0131] By providing such a structure, when the first vaporization filter 31 and the second vaporization filter 32 mounted to the unit main body 300 are removed, the plate member 36 can be held on the front side, and pulled out from the side surface on which the length in the longitudinal direction is small by the cutout portion 351. The length (h2) in the longitudinal direction of the side surface on the side on which the cutout portion 351 is provided is smaller than the length (h1) in the longitudinal direction of the insertion hole 304 of the mounting portion 301, and thus the removal of the first vaporization filter 31 and the second vaporization filter 32 can be facilitated, and the detachability can be improved.

[0132] A grip portion 361 is provided in the plate member 36, and the grip portion 361 is held by the worker performing the maintenance work when the plate member 36 is attached and detached, and thus the removal of the first vaporization filter 31 and the second vaporization filter 32 can be facilitated, and the work efficiency of the maintenance work can be improved.

[0133] The length (h3) in the longitudinal direction of the side surface of the side on which the cutout portion 351 is not provided is greater than the length (hi) in the longitudinal direction of the insertion hole 304 of the mounting portion 301, but since the filter element 35 is formed of a soft member such as rayon / polyester fiber or nonwoven fabric, it is temporarily deformed when inserted into the insertion hole 304, and thus the filter element 35 is mounted to the unit main body 300. Since the filter element 35 inserted into the insertion hole 304 and mounted to the mounting portion 301 returns to the original shape, the length in the longitudinal direction of the side on which the plate member 36 is not provided becomes greater than the length in the longitudinal direction of the insertion hole 304. Therefore, in the first gasification filter 31 and the second gasification filter 32, the flow path cross-sectional area of the filter element 35 through which air passes can be set to be large, and the gasification efficiency can be improved.

[0134] In a state in which the first gasification filter 31 is mounted to the mounting portion 301, the insertion hole 304 is closed by the flange portion 362 of the plate member 36 of the first gasification filter 31. A frame-shaped sealing member 363 is provided between the contact surface of the frame that forms the insertion hole 304 and the inner surface of the flange portion 362 opposite the contact surface, and thus the sealing property can be improved.

[0135] In a state in which the first gasification filter 31 is mounted to the mounting portion 301, a gap is formed between the bottom surface (lower surface) of the filter element 35 and the dust filter 303 provided inside the holding portion 302. That is, the length (height) from the top surface (upper surface) to the bottom surface (lower surface) of the filter element 35 is shorter (smaller) than the surface-to-surface distance between the top surface (upper surface) of the filter element 35 in a state in which the first gasification filter 31 is mounted to the mounting portion 301 and the upper surface of the dust filter 303. By providing such a structure, since a gap is formed between the dust filter 303 and the bottom surface of the filter element 35, when the first gasification filter 31 is pulled out from the mounting portion 301, the bottom surface of the filter element 35 does not contact the dust captured by the dust filter 303, and the first gasification filter 31 mounted to the unit main body 300 can be taken out.

[0136] Alternatively, the bottom surface (lower surface) of the filter element 35 can be in abutment with the upper surface of the dust filter 303 provided inside the holding portion 302. That is, the length (height) from the top surface (upper surface) to the bottom surface (lower surface) of the filter element 35 is the same as the surface-to-surface distance between the top surface (upper surface) of the filter element 35 in a state in which the first gasification filter 31 is mounted to the mounting portion 301 and the upper surface of the dust filter 303. By providing such a structure, since the dust filter 303 is in abutment with the bottom surface of the filter element 35, when air passes through the first gasification filter 31, air can be effectively inhibited from not passing through and bypassing the filter element 35 of the first gasification filter 31.

[0137] Alternatively, the bottom surface (lower surface) of the filter element 35 can be in elastic contact with the upper surface of the dust filter 303 provided in the holding portion 302, and the bottom portion of the filter element 35 can be deflected by the elastic contact with the dust filter 303. That is, the length (height) from the top surface (upper surface) to the bottom surface (lower surface) of the filter element 35 is longer (larger) than the surface-to-surface distance between the top surface (upper surface) of the filter element 35 and the upper surface of the dust filter 303 in the state where the first gasification filter 31 is mounted to the mounting portion 301. With this configuration, the first gasification filter 31 is mounted to the mounting portion 301 of the unit main body 300 in the state where the dust filter 303 is in elastic contact with the bottom surface of the filter element 35 and the bottom portion of the filter element 35 is deflected. Thus, when air passes through the first gasification filter 31, it is possible to further suppress the air from not passing through and bypassing the filter element 35 of the first gasification filter 31.

[0138] Figure 9 is a schematic perspective view illustrating a structure of the fixing member 38 (front side). Figure 10 is a schematic perspective view illustrating a structure of the fixing member 38 (rear side). The fixing member 38 is a box having an opening portion, and includes a first pressing portion 381 that presses and fixes the plate member 36 of the first gasification filter 31 and a second pressing portion 382 that presses and fixes the plate member 36 of the second gasification filter 32.

[0139] In the state where the first gasification filter 31 and the second gasification filter 32 are mounted to the unit main body 300, the fixing member 38 is provided at a position adjacent to each of the plate members 36 of the first gasification filter 31 and the second gasification filter 32. That is, the fixing member 38 is arranged between the plate members 36 of the first gasification filter 31 and the second gasification filter 32 at the corner portion of the L shape formed by the first gasification filter 31 and the second gasification filter 32.

[0140] When the fixing member 38 is arranged between the plate members 36 of the first gasification filter 31 and the second gasification filter 32, the opening portion is arranged so as to face the side opposite to the plate members 36. That is, the fixing member 38 is arranged so that the opening portion faces the door portion 111 provided on the side surface of the housing 11. Thus, the bottom plate portion (bottom surface) of the box constituting the fixing member 38 functions as the second pressing portion 382 that presses the plate member 36 of the second gasification filter 32. The left side plate portion (left side surface) of the box constituting the fixing member 38 functions as the first pressing portion 381 that presses the plate member 36 of the first gasification filter 31.

[0141] By closing the door portion 111 provided on the side surface of the housing 11, the inner surface of the door portion 111 presses the edge portion of the opening portion of the fixing member 38. Thus, the first pressing portion 381 (side plate portion) and the second pressing portion 382 (bottom plate portion) of the fixing member 38 press the respective plate portions of the first gasification filter 31 and the second gasification filter 32, and fix these first gasification filter 31 and second gasification filter 32, and the first gasification filter 31 and the second gasification filter 32 installed in the installation portion 301 can be kept in the state.

[0142] In these first pressing portion 381 (side plate portion) and the second pressing portion 382 (bottom plate portion), a recess portion 383 composed of a recess portion or the like is formed, and has a shape recessed toward the inside of the case. When the fixing member 38 is arranged between the respective plate members 36 of the first gasification filter 31 and the second gasification filter 32 and presses to fix these first gasification filter 31 and second gasification filter 32, the grip portion 361 provided to each plate member 36 is located in the recess portion 383.

[0143] In the side plate portions on the upper side and the lower side of the case constituting the fixing member 38, engagement portions such as protrusions provided to protrude from the outer surfaces of these side plate portions are provided, and by engaging these protrusions with the engagement portions such as recesses provided to the unit main body 300, the positioning of the fixing member 38 with respect to the unit main body 300 is performed. By being configured in this way, the first gasification filter 31 and the second gasification filter 32 installed in the unit main body 300 can be effectively fixed by the separate fixing member 38.

[0144] Figure 11 is an explanatory view illustrating the state in which the fixing member 38 is provided. Figure 12 is an explanatory view illustrating the state in which the fixing member 38 is removed. Figure 13 is an explanatory view illustrating the direction of movement when the gasification filter (first gasification filter 31, second gasification filter 32) is attached or detached. In the drawing in the present embodiment, the attachment or detachment of the first gasification filter 31 and the second gasification filter 32 in a state (open state) in which the door portion 111 provided on the side surface of the housing 11 is opened is explained.

[0145] The fixing member 38 is provided at a position located at the corner portion of the L shape constituted by the first gasification filter 31 and the second gasification filter 32, that is, is arranged between the respective plate members 36 of the first gasification filter 31 and the second gasification filter 32. In the state in which the fixing member 38 is arranged, that is, in the state in which it is installed in the unit main body 300, the respective plate members 36 of the first gasification filter 31 and the second gasification filter 32 are covered by the fixing member 38.

[0146] By removing the fixing member 38 from the unit body 300, the plate members 36 of the first and second gasification filters 31 and 32 are exposed, i.e., are visible from the door portion 111 provided to the side surface of the housing 11. In this state, the first and second gasification filters 31 and 32 can be pulled out of the unit body 300 by pulling the grip portions 361 provided to the respective plate members 36, and the first and second gasification filters 31 and 32 are pulled out of the housing 11.

[0147] Since the first and second gasification filters 31 and 32 are installed to the unit body 300 in a manner to become L-shaped, the moving direction when the first gasification filter 31 is pulled out of the unit body 300 is the vertical edge direction of the L-shape, and the moving direction when the second gasification filter 32 is pulled out of the unit body 300 is the horizontal edge direction of the L-shape. Therefore, the respective moving directions when the first and second gasification filters 31 and 32 are pulled out of the unit body 300 are crossed.

[0148] Similarly, the respective moving directions when the first and second gasification filters 31 and 32 are installed to the unit body 300, i.e., are inserted into the insertion holes 304 of the insertion portions 301 are also crossed. The respective moving directions when the first and second gasification filters 31 and 32 are attached and detached to and from the inside and outside of the housing 11 are crossed as such, and thus a part of the space region between the moving space of the first gasification filter 31 and the moving space of the second gasification filter 32 can be overlapped, and thus the size of the inspection hole can be suppressed from becoming large.

[0149] (Embodiment 2)

[0150] Figure 14 is a schematic side view illustrating a structure of the gasification filters (the first gasification filter 31, the second gasification filter 32) of Embodiment 2. Figure 15 is a schematic side view illustrating a structure of a state in which the gasification filters (the first gasification filter 31, the second gasification filter 32) are installed to the insertion portions 301 of the unit body. The gasification filters (the first gasification filter 31, the second gasification filter 32) of Embodiment 2, like Embodiment 1, include the rectangular filter elements 35 and the rectangular plate members 36 provided to the side surfaces of the filter elements 35.

[0151] In the filter elements 35 of the first and second gasification filters 31 and 32 of Embodiment 2, the cutout portions 351 are not provided, and the filter elements 35 are in the shape of a rectangular parallelepiped without portions cut out by the cutout portions 351. Thus, the manufacturability of the filter elements 35 can be improved.

[0152] The plate member 36, like the embodiment 1, includes a front surface located on the opposite side to the filter element 35 and a rear surface located on the side of the filter element 35. The rear surface corresponds to a surface (contact surface) that is in close contact with the side surface of the filter element 35. That is, the rear surface (contact surface) of the plate member 36 is opposite to the side surface of the filter element 35 on the side of the plate member 36, and the plate member 36 is engaged with the filter element 35.

[0153] Regarding the size relationship of the insertion hole 304 of the mounting portion 301 and the gasification filter (the first gasification filter 31, the second gasification filter 32) in the embodiment 2, the description is made based on the state where the first gasification filter 31 is mounted to the mounting portion 301. The structure of the mounting portion 301 of the unit main body in the embodiment 2 is the same as that of the embodiment 1.

[0154] In the filter element 35 of the first gasification filter 31, the length in the longitudinal direction of the side on which the plate member 36 is provided is equal to the length in the longitudinal direction of the side on which the plate member 36 is not provided (length in the longitudinal direction of the side surface of the filter element 35: L3). The length in the longitudinal direction of the rear surface (contact surface) of the plate member 36 that is in close contact with the side surface of the filter element 35 (L2) is smaller than the length in the longitudinal direction of the side surface of the filter element 35 (L3) (L2

[0155] Like the embodiment 1, the upper end of the plate member 36 is aligned with the upper end of the filter element 35 in such a manner that the same position is obtained in the vertical direction, and the plate member 36 is provided, and therefore, the lower end of the side surface of the filter element 35 protrudes downward compared to the lower edge of the rear surface (contact surface) of the plate member 36. The length in the longitudinal direction of the insertion hole 304 of the mounting portion 301 (L1) is larger than the length in the longitudinal direction of the rear surface (contact surface) of the plate member 36 (L2), and is smaller than the length in the longitudinal direction of the front surface of the plate member 36 on which the flange portion 362 is provided (L4) (L2

[0156] Therefore, the length relationship of the length (L1) in the longitudinal direction of the insertion hole 304 of the mounting portion 301, the length (L2) in the longitudinal direction of the rear surface (abutting surface) of the plate member 36, the length (L3) in the longitudinal direction of the side surface of the filter element 35, and the length (L4) in the longitudinal direction of the front surface of the plate member 36 provided with the flange portion 362 satisfies the relationship of (L2 < L1 < L3 < L4). By being provided with such a dimensional relationship, it is possible to mount the filter element 35, which is larger than the length (L1) in the longitudinal direction of the insertion hole 304, to the mounting portion 301, and to close the insertion hole 304 by the flange portion 362 of the plate member 36, and to effectively replace the gasification filter (the first gasification filter 31, the second gasification filter 32) using the gripping portion of the plate member 36. However, the relationship of L3 and L4 can be appropriately changed, and can be L3 ≥ L4.

[0157] The holding portion 302 is a box with an open upper portion, and a plurality of communication holes that communicate with the drain pan 34 are provided on the bottom surface of the box. A holding rib 305 for holding the dust filter 303 is provided on the bottom surface of the box-shaped holding portion 302. The holding rib 305 is constituted by one or more protrusions (linear ribs) that protrude upward from the bottom surface of the holding portion 302, for example, and is provided so as to be parallel to the direction of movement when the first gasification filter 31 or the second gasification filter 32 is attached or detached. The holding rib 305 is constituted by a protrusion that is parallel to the direction of movement when the first gasification filter 31 or the like is attached or detached and protrudes upward compared to the dust filter 303, and thus functions as a movement guide portion when the first gasification filter 31 and the second gasification filter 32 are attached or detached. As a result, the operability when the first gasification filter 31 and the second gasification filter 32 are attached or detached can be improved. When the first gasification filter 31 and the second gasification filter 32 are attached or detached by the holding rib 305, the first gasification filter 31 and the second gasification filter 32 can be prevented from abutting against the dust filter. As a result, contact of foreign matter or the like accumulated on the dust filter 303 with the first gasification filter 31 or the second gasification filter 32 can be prevented. In addition, the dust filter 303 can be easily held by the holding rib 305.

[0158] In the box-shaped holding portion 302, a low wall portion 306 in which the height of the wall surface (side surface) is locally lowered is formed in the wall surface that is parallel to the direction of movement when the first gasification filter 31 or the second gasification filter 32 is attached or detached. The low wall portion 306 can be formed by cutting off the upper end portion of the insertion hole 304 side of the wall surface. By the upper end portion of the insertion hole 304 side of the wall surface being formed by the low wall portion 306, the mountability when the first gasification filter 31 and the second gasification filter 32 are inserted from the insertion hole 304 can be improved.

[0159] The embodiments disclosed in the present application are illustrative in all aspects and should be considered not as restrictive. The scope of the present application is indicated by the scope of the patent claim, and includes the meaning and scope equivalent to the scope of the patent claim and all modifications within the scope.

[0160] Explanation of symbols

[0161] 1 air conditioner

[0162] 11 housing (main body)

[0163] 111 door portion

[0164] 12 tank (separate body)

[0165] 13 electric unit

[0166] 3 cooling unit

[0167] 300 unit main body

[0168] 301 mounting portion

[0169] 302 holding portion

[0170] 303 dust filter

[0171] 304 insertion hole

[0172] 305 holding rib

[0173] 306 low wall portion

[0174] 31 first gasification filter

[0175] 32 second gasification filter

[0176] 33 water supply portion

[0177] 33A first water supply portion

[0178] 33B second water supply portion

[0179] 331 first water supply hole

[0180] 332 second water supply hole

[0181] 333 container portion

[0182] 34 drain pan

[0183] 35 filter element

[0184] 351 cutout portion

[0185] 36 plate member

[0186] 361 holding portion

[0187] 362 flange portion

[0188] 363 frame-shaped sealing member

[0189] 37 core member

[0190] 38 fixing member

[0191] 381 first pressing portion

[0192] 382 second pressing portion

[0193] 383 recessed portion

[0194] 4 sensible heat exchanger

[0195] 41 first path

[0196] 42 second path

[0197] 431 first inlet-side opening surface

[0198] 432 second inlet-side opening surface

[0199] 441 first outlet-side opening surface

[0200] 442 second outlet-side opening surface

[0201] 5 suction port

[0202] 51 suction flow path

[0203] 52 branch flow path

[0204] 53 dust collecting filter

[0205] 531 sealing member

[0206] 61 first flow path

[0207] 62 second flow path

[0208] 71 first blow-out port

[0209] 711 blow-out duct

[0210] 72 second blow-out port

[0211] 8 fan motor

[0212] 81 first fan

[0213] 82 second fan

[0214] 83 partition plate

[0215] 84 fan housing

[0216] 91 supply water path

[0217] 911 first water supply path

[0218] 912 second water supply path

[0219] 913 water supply pump

[0220] 92 water recovery path

[0221] 921 first water recovery path

[0222] 922 second water recovery path

[0223] 923 recovery pump

Claims

1. A cooling unit for cooling an air-conditioned space, characterized in that, It is equipped with a vaporization filter that can be easily installed and removed, and uses the latent heat of water to cool the air passing through the vaporization filter. The vaporization filter comprises: A filter element, the filter element being rectangular in shape, and water permeating the filter element from above; and A rectangular plate component is disposed on the side of the filter element. The lower end of the filter element protrudes downwards compared to the lower edge of the surface of the plate component opposite to the filter element.

2. The cooling unit according to claim 1, characterized in that, The gasification filter has multiple core components that extend through the filter element. The end of the core component is engaged with the plate component.

3. The cooling unit according to claim 1 or 2, characterized in that, The filter element has a cutout portion, which is formed by cutting off a corner of one side where the plate component is located. The length of the side with the plate component is less than the length of the side without the plate component.

4. The cooling unit according to any one of claims 1 to 3, characterized in that, The plate component is provided with a holding part, which is held during loading and unloading of the plate component.

5. The cooling unit according to any one of claims 1 to 4, characterized in that, Includes a mounting section for mounting the gasification filter. A rectangular insertion hole is formed in the mounting portion for inserting the gasification filter. The length of the side of the filter element without the plate component is greater than the length of the insertion hole.

6. The cooling unit according to claim 5, characterized in that, The plate component is provided with a flange portion that protrudes from the outer edge of the plate component. The insertion hole is closed by the flange.

7. The cooling unit according to claim 6, characterized in that, A frame-shaped sealing member is provided on the side of the insertion hole in the flange portion.

8. The cooling unit according to any one of claims 5 to 7, characterized in that, The mounting portion includes a retaining portion that holds the bottom of the vaporization filter. A plate-shaped dust filter is provided in the retaining part, which captures dust adhering to the filter element. A gap is formed between the dust filter and the bottom surface of the filter element.

9. The cooling unit according to any one of claims 5 to 7, characterized in that, The mounting portion includes a retaining portion that holds the bottom of the vaporization filter. A plate-shaped dust filter is provided in the retaining part, which captures dust adhering to the filter element. The dust filter abuts against the bottom surface of the filter element.

10. The cooling unit according to any one of claims 5 to 7, characterized in that, The mounting portion includes a retaining portion that holds the bottom of the vaporization filter. A plate-shaped dust filter is provided in the retaining part, which captures dust adhering to the filter element. The bottom of the filter element flexes due to the elastic contact between the dust filter and the bottom surface of the filter element.

11. The cooling unit according to any one of claims 1 to 10, characterized in that, The vaporization filter includes a first vaporization filter and a second vaporization filter. The first vaporization filter cools the first air blown into the air-conditioned space using the latent heat of water, and the second vaporization filter cools the second air that exchanges sensible heat with the first air using the latent heat of water. The first vaporization filter and the second vaporization filter are configured in an L-shape.

12. The cooling unit according to claim 11, characterized in that, It includes a fixing component that secures the first gasification filter and the second gasification filter. The fixing component includes: A first pressing part presses down on and secures the plate component of the first vaporization filter; and The second pressing part presses down on and fixes the plate component of the second vaporization filter.

13. An air conditioner, characterized in that, It comprises the cooling unit as described in claim 11 or claim 12 and a housing for housing the cooling unit. The first vaporization filter and the second vaporization filter are mounted adjacent to each other in the cooling unit with their respective plate components. In the housing, a door portion for sealing the inspection hole is provided on the side of each of the first and second vaporization filters, on the side where the plate component is provided. This door portion is configured to open and close freely. The first vaporization filter and the second vaporization filter are detachably mounted relative to the housing via the inspection port.

14. The air conditioner according to claim 13, characterized in that, The direction of movement of the first vaporization filter relative to the housing during loading and unloading intersects the direction of movement of the second vaporization filter relative to the housing during loading and unloading.

Images