Air conditioner

Abstract

To provide an air conditioner that enables pressure loss of second air flowing in a heat exchanger to be reduced compared to conventional cases.SOLUTION: An air conditioner 1 includes a casing 2, first and second intake ports 74, a heat exchanger 4, a vaporization filter 6, a first blowout port 29 and a second blowout port. In the heat exchanger 4, a first heat exchange flow passage R1 and a second heat exchange flow passage R2 are formed. The vaporization filter 6 cools first air by using latent heat of water. The first air taken in from the first intake port 74 and flowing in the first heat exchange flow passage R1 of the heat exchanger 4 and the vaporization filter 6 is blown out from the first blowout port to outside of the casing 2. The first blowout port 29 is disposed in the casing 2. Second air taken in from the second intake port 74 and flowing upwardly in the second heat exchange flow passage R2 is blown out from the second blowout port to outside of the casing 2. In the casing 2, the second blowout port is disposed at a position located on the upper side of an outlet 50 of the second heat exchange flow passage R2 of the heat exchanger 4.SELECTED DRAWING: Figure 12

Description

[Technical field]

[0001] The present invention relates to an air conditioner having a heat exchanger. [Background technology]

[0002] A conventional air conditioner has a housing, a first flow path, a second flow path, a tank unit, a cooling unit, a supply water path, and a recovery water path. A first outlet and a second outlet are formed in the housing. The first flow path communicates with the first outlet. The second flow path communicates with the second outlet. The tank unit holds water for cooling the first air flowing through the first flow path and the second air flowing through the second flow path. The cooling unit cools the first air by the heat of vaporization of the water held in the tank unit. The cooling unit includes a heat exchanger and an evaporation filter. The heat exchanger cools the second air by heat exchange with the water supplied from the tank unit, and cools the first air by heat exchange between the cooled second air and the first air. The evaporation filter cools the first air by the latent heat of the water supplied from the tank unit. The supply water path supplies the water held in the tank unit to the cooling unit. The recovery water path recovers water remaining in the cooling unit to the tank unit. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2021-113652 A Summary of the Invention [Problem to be solved by the invention]

[0004] In the conventional heat exchanger, the second air flows along the second flow path from above to below the heat exchanger, passes below the heat exchanger, flows upward, and is blown out from the second outlet provided on the upper surface of the housing. Since the second flow path includes a portion folded back in a U-shape, there is a concern that the pressure loss of the second air will be large.

[0005] An object of the present invention is to provide an air conditioner in which the pressure loss of the secondary air flowing through the heat exchanger is reduced compared to the conventional art. [Means for solving the problem]

[0006] An air conditioner according to one embodiment of the present invention comprises a housing, a first inlet arranged on a first side wall of the housing for taking in a first air into the housing, a second inlet arranged on the first side wall for taking in a second air into the housing, a heat exchanger formed with a first heat exchange flow path through which the first air taken in from the first inlet flows, and a second heat exchange flow path through which the second air taken in from the second inlet flows in an upward direction and through which water is supplied, an evaporative filter that cools the first air by using latent heat of water, a first outlet arranged in the housing through which the first air taken in from the first inlet and flowing through the first heat exchange flow path and the evaporative filter of the heat exchanger is blown out of the housing, and a second outlet arranged in the housing at a position above the outlet of the second heat exchange flow path of the heat exchanger, through which the second air taken in from the second inlet and flowing in the upward direction through the second heat exchange flow path is blown out of the housing. In the heat exchanger of the air conditioner, the direction in which the second air flows through the second heat exchange flow passage coincides with the direction in which the second outlet is disposed relative to the outlet of the second heat exchange flow passage of the heat exchanger. Therefore, the air conditioner can cause the second air to flow upward from the second heat exchange flow passage to the second outlet, and can reduce the pressure loss of the second air compared to the conventional art. Since the first inlet and the second inlet are disposed on the same first side wall, the configuration inside the housing can be simplified compared to when the first inlet and the second inlet are disposed on different side walls, which contributes to reducing the size of the housing. [Brief description of the drawings]

[0007] [Figure 1] FIG. 2 is a perspective view of the air conditioner 1 with the drawer body 7 in the storage position Q1. [Diagram 2] FIG. 2 is a perspective view of the air conditioner 1 with the drawer body 7 in the drawn-out position Q2. [Diagram 3]1 is a perspective view of the air conditioner 1 with the air filter 60, heat exchanger 4, and evaporation filter 6 removed from the drawer body 7 in the drawn-out position Q2, with the third side wall 23 omitted. [Figure 4] 1 is a right side view of a drawer body 7 on which an air filter 60, a heat exchanger 4, and an evaporation filter 6 are mounted. [Diagram 5] FIG. 2 is a plan view of a drawer body 7 on which an air filter 60, a heat exchanger 4, and an evaporation filter 6 are mounted. [Figure 6] 1 is a perspective view of a drawer body 7 on which an air filter 60, a heat exchanger 4, and an evaporation filter 6 are mounted. [Figure 7] FIG. [Figure 8] FIG. 2 is a perspective view of the vaporization filter 6. [Figure 9] 1 is a perspective view of the drawer body 7 with the air filter 60 mounted thereon and the heat exchanger 4 and the evaporation filter 6 removed. [Figure 10] FIG. 2 is a perspective view of a first drain pan 81. [Figure 11] 11 is a cross-sectional view taken along line 11-11 in FIG. 2. [Figure 12] 1. FIG. 2 is a cross-sectional view taken along line 12-12 in FIG. [Figure 13] FIG. 2 is a perspective view of the air conditioner 1 with a first tank 201 and a second tank 202 removed. [Figure 14] 14 is a cross-sectional view taken along line 14-14 in FIG. 13 . [Figure 15] 2 is a perspective view of a first tank 201 and a second tank 202. FIG. [Figure 16] FIG. 2 is a perspective view of the air conditioner 1 with a first tank 201 and a second tank 202 removed. [Figure 17] 2 is a perspective view showing the arrangement of the water supply unit 13 and the power supply harness 99 within the housing 2. FIG. [Figure 18] 2 is a perspective view of a first pipe 96, a second pipe 97, and a third pipe 98. FIG. [Figure 19] 13 is a right side view of a second drain pan 181 and a second tank accommodating portion 239 of a modified example. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] An embodiment of the present invention will be described. In the following, the installed state of the air conditioner 1 shown in Fig. 1 is regarded as the normal usage state of the air conditioner 1, and the left and right, front and rear, and up and down are used as indicated by arrows in the figure. The left and right direction of the air conditioner 1 is also referred to as the width direction W of the air conditioner 1, and the center of the width direction W of the air conditioner 1 is referred to as the center WM. The fixing method of each member of the air conditioner 1 may be appropriately selected, and for example, they are fixed by welding, adhesion, or fixing members. The fixing members are, for example, screws, bolts, and rivets.

[0009] The air conditioner 1 shown in FIG. 1 is an evaporative cooling type air conditioner that is installed on the floor of a space to be air-conditioned, such as a factory. As shown in FIGS. 1 to 3, the air conditioner 1 includes a housing 2, rails 91 and 92, a drawer body 7, an air filter 60, and a cooling unit 3. The cooling unit 3 of this embodiment includes a heat exchanger 4 and an evaporative filter 6. As shown in FIGS. 11, 12, and 17, the air conditioner 1 further includes a water storage container 20, a first tank housing section 140, a second tank housing section 39, an outlet pipe 19, a drain pan 8, a flow path forming section 37, a water supply unit 13, pressing members 331 and 332, a first wall 35, a second wall 36, a first fan 101, a second fan 102, a fan motor 103, and a partition plate 105.

[0010] As shown in FIG. 1, the housing 2 has a rectangular parallelepiped shape that is long in the vertical direction and has a first side wall 21, a second side wall 22, a third side wall 23, a fourth side wall 24, an upper wall 25, and a lower wall 26. The housing 2 is made of resin or metal. The first side wall 21 is a front wall that forms the front surface of the housing 2, and the second side wall 22 is a rear wall opposite the first side wall 21 and forms the back surface of the housing 2. The third side wall 23 is a right wall connected to the first side wall 21 and the second side wall 22 and forms the right side surface of the housing 2. The fourth side wall 24 is a left wall opposite the third side wall 23 and forms the left side surface of the housing 2. The housing 2 accommodates the heat exchanger 4 and the water storage container 20.

[0011] The first side wall 21 of the housing 2 is formed with an outlet 27 for taking out a first tank 201 and a second tank 202 of the water storage container 20 from the housing 2, which will be described later. The first side wall 21 of the housing 2 is further formed with a drawer 28. The drawer 28 is formed above the drawer 27 and is continuous with the drawer 27. The drawer 28 and the drawer 27 are openings formed in the first side wall 21 that are generally rectangular in front view and elongated in the vertical direction. The drawer body 7, which will be described later, is attached to the drawer 28. The first side wall 21 of the housing 2 is formed with an inlet 74. In the housing 2 of this embodiment, the inlet 74 is arranged in a decorative panel 73 of the drawer body 7 attached to the drawer 28. The inlet 74 is an example of a first inlet, and is arranged in the first side wall 21 of the housing 2, through which the first air taken into the housing 2 circulates. The inlet 74 is also an example of a second inlet, is disposed in the first side wall 21, and circulates the second air taken into the housing 2. In other words, the inlet 74 is a common inlet for the first air and the second air.

[0012] A first air outlet 29 and a second air outlet 30 are formed in the upper wall 25 of the housing 2. The first air outlet 29 is disposed in the housing 2. The first air outlet 29 is an opening through which the first air taken in from the inlet 74 and flowing through the first heat exchange passage R1 and the vaporization filter 6 of the heat exchanger 4 of the cooling unit 3 described later is blown out to the outside of the housing 2. The second air outlet 30 is disposed in a position of the housing 2 that is higher than the outlet 50 of the second heat exchange passage R2 of the heat exchanger 4 described later shown in FIG. 5. The second air outlet 30 is an opening through which the second air taken in from the inlet 74 and flowing upward through the second heat exchange passage R2 is blown out to the outside of the housing 2. The second air outlet 30 is disposed in a position closer to the first side wall 21 than the first air outlet 29 in the front-rear direction along the first direction K1 in which the first air flows through the first heat exchange passage R1. The second air outlet 30 is disposed at a position overlapping with the first air outlet 29 in a width direction W perpendicular to the first direction K1 in which the first air flows through the first heat exchange passage R1 and the vertical direction, that is, in the left-right direction. A flexible cylindrical air duct 291 is connected to the first air outlet 29. The orientation of the air duct 291 can be changed. Casters 89 are fixed to the four corners of the lower wall 26. As shown in FIG. 3 and FIG. 14, the housing 2 is provided with pillars 281 to 284 extending in the up-down direction. The pillar 281 is disposed at the right front corner, the pillar 282 is disposed at the left front corner, the pillar 283 is disposed at the right rear corner, and the pillar 284 is disposed at the left rear corner. The upper wall 25 and the lower wall 26 each extend horizontally. The lower wall 26 is connected to the lower ends of the pillars 281 to 284. Top wall 25 connects to the upper ends of each of the posts 281 to 284.

[0013] As shown in FIG. 3 and FIG. 14, the rails 91, 92 guide the movement of the drawer body 7. The rails 91, 92 are metal plates extending in the front-rear direction. The rail 91 is disposed on the fourth side wall 24 side, i.e., on the left side, in the width direction W. The front end of the rail 91 is fixed to the support 282 via the fixing plate 261, and the rear end of the rail 91 is fixed to the support 284 via the fixing plate 261. The fixing plate 261 is a metal plate extending in the front-rear direction to the left of the rail 91. The rail 92 is disposed on the third side wall 23 side, i.e., on the right side, in the width direction W. The front end of the rail 92 is fixed to the support 281 via the fixing plate 262, and the rear end of the rail 92 is fixed to the support 283 via the fixing plate 262. The fixing plate 262 is a metal plate extending in the front-rear direction to the right of the rail 92. An engagement portion 93 is fixed to the front end of the fixed plate 261. As shown in Fig. 12, the engagement portion 93 is a metal plate that protrudes to the right from the front end of the fixed plate 261, and the right end of the engagement portion 93 is bent upward. An engagement portion 94 is fixed to the front end of the fixed plate 262. The engagement portion 94 is a metal plate that protrudes to the left from the front end of the fixed plate 262, and the left end of the engagement portion 94 is bent upward. The engagement portions 93, 94 form part of a restricting member 78 that restricts the movement of the drawer body 7 from the storage position Q1 toward the drawer position Q2.

[0014] The drawer body 7 has the heat exchanger 4 mounted thereon and moves between a stored position Q1 shown in Fig. 1 where the heat exchanger 4 is disposed inside the housing 2 and a drawn-out position Q2 shown in Fig. 2 where the heat exchanger 4 is disposed outside the housing 2. As shown in Figs. 2 to 6, the drawer body 7 has frames 71, 72, a decorative plate 73, and beam members 76, 77. The drawer body 7 is provided with engaged portions 79, 80.

[0015] As shown in FIG. 4 to FIG. 6, the frames 71 and 72 are metal plates elongated in the front-rear direction, with the end on the center WM side in the width direction W bent downward. The frame 71 fits into the rail 91, and the frame 72 fits into the rail 92. The decorative plate 73 is connected to the downstream end of the frames 71 and 72 in the drawing direction D in which the drawer body 7 moves from the storage position Q1 to the drawing position Q2. In this embodiment, the drawing direction D is a direction from the rear to the front, and the upstream side of the drawing direction D is the rear, and the downstream side of the drawing direction D is the front. The decorative plate 73 extends in the longitudinal direction of the frames 71 and 72, that is, in a direction intersecting with the front-rear direction. As shown in FIG. 1, when the drawer body 7 is in the storage position Q1, the decorative plate 73 forms the outer peripheral surface 200 of the air conditioner 1 together with the housing 2. The decorative plate 73 is formed with an inlet 74 through which the first air taken into the housing 2 flows. The inlet 74 is in a lattice frame shape. In the vertical direction, the frames 71 and 72 are connected to the rear surface of the decorative plate 73 below the position where the inlet 74 is formed. Flanges 731 and 732 protruding rearward are formed on the rear surface of the decorative plate 73. The flange 731 extends rearward from the left end of the rear surface of the decorative plate 73. The flange 732 extends rearward from the right end of the rear surface of the decorative plate 73. The upper ends of the flanges 731 and 732 are inclined downward toward the rear. The lower ends of the flanges 731 and 732 are bent toward the center WM side in the width direction W. The length of the flanges 731 and 732 in the front-rear direction is shorter than half the length of the frames 71 and 72 in the front-rear direction. A support plate 734 is formed at the rear of the upper ends of the flanges 731 and 732. The support plate 734 extends parallel to the decorative plate 73, separated from the decorative plate 73, above the inlet 74 in the vertical direction.

[0016] The drawer handle 70 is provided below the intake port 74 of the decorative panel 73, and is operated when moving the drawer body 7. The drawer handle 70 is rectangular in shape, elongated in the left-right direction when viewed from the front, and recessed toward the rear. In the up-down direction, the drawer handle 70 is located below the frames 71, 72. As shown in FIG. 6, the drawer handle 70 is connected to the engaged parts 79, 80 via a switching mechanism 701. The switching mechanism 701 transmits the operation of the drawer handle 70 to the engaged parts 79, 80. In response to an operation by a user of the air conditioner 1, the drawer handle 70 switches the positions of the engaged parts 79, 80 provided on the drawer body 7 between an engaged position where the engaged parts 79, 80 come into contact with the engaging parts 93, 94 and can be engaged, and a non-engaged position where the engaged parts 93, 94 are separated and cannot be engaged. The engaged parts 79, 80 constitute a part of the restricting member 78. That is, the restricting member 78 includes engaging portions 93, 94 arranged on the housing 2 and engaged portions 79, 80 arranged on the drawer body 7. The engaged portions 79, 80 are metal plates having an L-shape in plan view. The rear end of the engaged portion 79 is bent to the left. The rear end of the engaged portion 80 is bent to the right. The engaged portions 79, 80 are located below the first drain pan 81 and below the upper ends of the frames 71, 72. The front end of the engaged portion 79 is supported to the left of the drawer handle 70 so as to be swingable about an axis extending in the vertical direction. The front end of the engaged portion 80 is supported to the right of the drawer handle 70 so as to be swingable about an axis extending in the vertical direction. In FIG. 6, the engaged portions 79, 80 in the engaged position are indicated by solid lines, and the engaged portions 79, 80 in the engaged position are indicated by dotted lines. 12, when the engaged portion 79 engages with the engaging portion 93, it restricts the movement of the drawer body 7 in the pulling-out direction D, and when the engaged portion 79 does not engage with the engaging portion 93, it allows the movement of the drawer body 7 in the pulling-out direction D. Similarly, when the engaged portion 80 engages with the engaging portion 94, it restricts the movement of the drawer body 7 in the pulling-out direction D, and when the engaged portion 80 does not engage with the engaging portion 94, it allows the movement of the drawer body 7 in the pulling-out direction D.

[0017] As shown in FIG. 4, FIG. 6, and FIG. 9, the beam members 76, 77 connect the frames 71, 72 and the decorative plate 73. The beam members 76, 77 are metal plates. The longitudinal direction of the beam members 76, 77 is a direction intersecting the extension surface of the decorative plate 73 and the longitudinal direction of the frames 71, 72, specifically, extends diagonally downward and rearward, which becomes lower toward the rear. In the left-right direction, the beam member 76 is disposed between the flange 731 and the first drain pan 81. The front end portion 761 of the beam member 76 is bent toward the center MW of the width direction W, that is, toward the right, and fixed to the back surface of the decorative plate 73. The rear end portion 762 of the beam member 76 is bent toward the center MW of the width direction W and fixed to the frame 71. Similarly, the beam member 77 is disposed between the flange 732 and the first drain pan 81. A front end 771 of the beam member 77 is bent toward the center MW in the width direction W, i.e., to the left, and fixed to the rear surface of the decorative board 73. A rear end 772 of the beam member 77 is bent toward the center MW in the width direction W, and fixed to the frame 72.

[0018] As shown in FIG. 2 to FIG. 6, the drawer body 7 of this embodiment is equipped with the vaporization filter 6, the air filter 60, and the opposing wall 803 in addition to the heat exchanger 4. The opposing wall 803 faces the first outer wall 54 of the heat exchanger 4 and the second outer wall 65 of the vaporization filter 6. The opposing wall 803 of this embodiment is the right wall of the first drain pan 81. The heat exchanger 4, the vaporization filter 6, the air filter 60, and the opposing wall 803 are each disposed between the flanges 731 and 732 and between the beam members 76 and 77 in the width direction W. In the vertical direction, the upper ends of the heat exchanger 4, the vaporization filter 6, and the air filter 60 are each located below the upper end of the decorative plate 73. The lower ends of the heat exchanger 4, the vaporization filter 6, and the air filter 60 are each located above the lower end of the decorative plate 73.

[0019] The air filter 60 is a rectangular filter in plan view, and includes a filter 601, a frame 602, and a pair of left and right knobs 603. The filter 601 collects dust in the air sucked in from the air inlet 74, and prevents the dust from adhering to the inside of the housing 2. The frame 602 is rectangular and holds the filter 601. Each of the pair of knobs 603 is bent backward from the upper end of the frame 602. The air filter 60 is mounted on the drawer body 7, and is disposed between the air inlet 74 and the heat exchanger 4. More specifically, the air filter 60 is inserted from above into a space that is rectangular in plan view and is surrounded by the decorative plate 73, the support plate 734, and the flanges 731 and 732. When the air filter 60 is attached to the drawer body 7, each of the pair of knobs 603 abuts against the upper end of the support plate 734. The left and right ends of the frame 602 are sandwiched in the front-rear direction between the decorative plate 73 and the support claws 737 provided on the rear surface of the decorative plate 73 .

[0020] The cooling unit 3 is disposed within the housing 2, and cools air taken in from outside the housing 2 by the heat of vaporization of water supplied from an outlet pipe 19, which will be described later and is shown in Fig. 11. The outlet pipe 19 is connected to a second tank 202 of a water storage container 20, which will be described later.

[0021] The heat exchanger 4 uses water supplied from the water storage container 20 to lower the ambient temperature and cool the space to be air-conditioned. As shown in FIG. 7, the heat exchanger 4 has a partition wall 42 that separates a first heat exchange passage R1 through which the first air flows and a second heat exchange passage R2 through which the second air and the water supplied from the water storage container flow. In the heat exchanger 4, the partition wall 42 forms a first heat exchange passage R1 through which the first air taken in from the inlet 74 flows, and a second heat exchange passage R2 through which the second air taken in from the inlet 74 flows upward and through which water is supplied. As shown in FIG. 12, the first heat exchange passage R1 forms a part of the first passage P1 from the inlet 74 to the first outlet 29. The second heat exchange passage R2 forms a part of the second passage P2 from the inlet 74 to the second outlet 30.

[0022] As shown in FIG. 7, the heat exchanger 4 of this embodiment includes a heat exchanger body 41 and a heat exchange case 46 that houses the heat exchanger body 41. The heat exchanger body 41 has a partition wall 42 that includes a plurality of sheets 45, a plurality of spacers 43, and a plurality of spacers 44. Each of the plurality of sheets 45 is formed of a resin or metal having thermal conductivity. The pair of spacers 43 extend in the front-rear direction at the upper and lower ends of the pair of adjacent sheets 45 from the front end to the rear end of the sheet 45. A space surrounded by the pair of adjacent sheets 45 and the pair of spacers 43 disposed between the pair of adjacent sheets 45 is a first heat exchange flow path R1. The pair of spacers 44 extend in the up-down direction from the upper end to the lower end of the sheet 45 at the front and rear ends of the pair of adjacent sheets 45 other than the pair of adjacent sheets 45 between which the pair of spacers 43 are disposed. A space surrounded by the pair of adjacent sheets 45 and the pair of spacers 44 disposed between the pair of adjacent sheets 45 is a second heat exchange flow path R2. Each of the sheets 45 is arranged at a predetermined interval in the left-right direction with the surface with the largest area facing rightward, so that first heat exchange passages R1 and second heat exchange passages R2 are formed alternately in the left-right direction. The predetermined interval of the first heat exchange passages R1 is determined by the thickness of the spacer 43 in the left-right direction. The predetermined interval of the second heat exchange passages R2 is determined by the thickness of the spacer 44 in the left-right direction.

[0023] The heat exchanger case 46 houses the heat exchanger body 41. The heat exchanger case 46 has a lid portion 47 and a box body 53. The lid portion 47 has a rectangular frame shape in a plan view in which an outlet 50 of the second heat exchange flow path R2 is formed. The outlet 50 is formed in a rectangular shape in a plan view. The box body 53 is a box shape with an open upper side. The vicinity of each of the four corners of the lid portion 47 is removably fixed to the upper end of the box body 53 by fixing members 471 to 474. The heat exchanger 4 has a first abutment portion 51 and a second abutment portion 52 on the lid portion 47 of the heat exchanger case 46. The first abutment portion 51 is a portion that protrudes upward and is disposed at the downstream end of the upper surface 48 of the heat exchanger 4 in the drawing direction D, that is, at the front end of the lid portion 47. The second contact portion 52 is an upwardly protruding portion disposed at an upstream end of the upper surface 48 of the heat exchanger 4 in the drawing-out direction D, that is, at the rear end of the cover portion 47. More specifically, the first contact portion 51 and the second contact portion 52 each protrude upward from the upper surface 48 of the heat exchanger 4 and incline upward toward the front. The first contact portion 51 and the second contact portion 52 each extend in the left-right direction from the left end to the right end of the heat exchanger 4. In the front-rear direction, the first contact portion 51 is provided in front of the outlet 50, and the second contact portion 52 is provided behind the outlet 50. As shown in FIG. 12, when the drawer body 7 is disposed in the storage position Q1, the first contact portion 51 comes into contact with the cushioning material 361 of the first wall 35 formed in the housing 2. When the drawer body 7 is disposed in the storage position Q1, the second contact portion 52 contacts the cushioning material 361 of the second wall 36 formed in the housing 2. The first contact portion 51 and the second contact portion 52 determine the position of the heat exchanger 4 in the front-rear direction and prevent the second air flowing through the outlet 50 of the second heat exchange flow passage R2 from mixing with other air. As shown in FIG. 4, FIG. 5, and FIG. 7, the heat exchanger 4 has a flange portion 49 that contacts an upper surface 69 of the vaporization filter 6 described later, upstream of the drawing direction D, that is, at the rear end of the heat exchanger 4. The flange portion 49 in this embodiment is provided at the rear end of the lid portion 47 of the heat exchange case 46. More specifically, the flange portion 49 extends rearward from the rear end of the second contact portion 52 along the upper surface 69 of the vaporization filter 6. The rear end of the flange portion 49 is located rearward of the rear end of the box body 53. The flange portion 49 extends in the left-right direction from the left end to the right end of the heat exchanger 4. Flanges 581, 582 are formed on the lid portion 47. The flange 581 is a portion disposed on the left end portion of the lid portion 47 and protruding diagonally upward to the left.The flange 582 is a portion that protrudes diagonally upward to the right and is disposed at the right end of the lid portion 47. In the left-right direction, the left end of the flange 581 is located to the left of the heat exchanger case 46, and the right end of the flange 582 is located to the right of the heat exchanger case 46. The flanges 581 and 582 prevent the second air that has flowed through the outlet 50 of the second heat exchange flow path R2 from mixing with other air.

[0024] The heat exchanger 4 has a first outer wall 54. The first outer wall 54 is the right wall of the box body 53 of the heat exchange case 46. The first outer wall 54 has a first groove 55 into which first ribs 851 and 852 of the opposing wall 803 described later fit. The first groove 55 is formed by ribs 551 and 552. The ribs 551 and 552 are convex parts that extend upward from the lower end of the rear part of the first outer wall 54 and protrude to the right. The rib 551 extends in the vertical direction. The rib 552 is disposed behind the rib 551 and extends at an angle to the vertical direction so as to be located further rearward toward the bottom. In other words, the distance between the ribs 551 and 552 in the front-rear direction is larger toward the bottom. A plurality of ribs 553 extending in the front-rear direction are connected to the front end of the rib 551 at equal intervals in the vertical direction. A plurality of ribs 554 extending in the front-rear direction are connected at equal intervals in the up-down direction to the rear end of the rib 552. The intervals in the up-down direction between the plurality of ribs 553 and the intervals in the up-down direction between the plurality of ribs 554 are each smaller than the minimum intervals between the ribs 551, 552 in the front-rear direction.

[0025] The heat exchanger 4 includes grips 541 and 542 on the box 53 of the heat exchange case 46. The grip 541 is in an inverted U-shape that opens downward when viewed from the right side, and is formed in the center of the first outer wall 54 in the front-rear direction. Similarly, the grip 542 is formed on the left wall of the box 53. The grips 541 and 542 are held by a user of the air conditioner 1 when attaching or detaching the heat exchanger 4 to or from the drawer body 7. On the front side of the box 53, an inlet 57 of the first heat exchange flow path R1 is formed in a rectangular shape when viewed from the front. As shown in FIG. 11, on the rear side of the box 53, an outlet 58 of the first heat exchange flow path R1 is formed in a rectangular shape when viewed from the rear. On the bottom side of the box 53, an inlet 56 of the second heat exchange flow path R2 is formed in a rectangular shape when viewed from the bottom. As shown in FIG. 7, a first direction K1 from the inlet 57 toward the outlet 58 of the first heat exchange flow path R1 is backward. A second direction K2 from the inlet 56 of the second heat exchange passage R2 toward the outlet 50 is an upward direction. A left wall lower end 591 and a right wall lower end 592 of the box body 53 each abut against a first drain pan 81 described below.

[0026] As shown in FIG. 5, the heat exchanger 4 has a shorter length in a width direction W perpendicular to the drawing direction D and the vertical direction, as compared to the downstream side, toward the upstream side in the drawing direction D in which the drawer body 7 moves from the storage position Q1 to the drawing position Q2. Specifically, the length L2 in the width direction W of the rear end of the heat exchanger 4 is shorter than the length L1 in the width direction W of the front end of the heat exchanger 4. That is, the heat exchanger 4 has a trapezoidal shape in a plan view. The heat exchanger 4 has a quadrangular pyramid shape with the front of the front wall of the heat exchange case 46 as the bottom surface. The heat exchanger 4 has a shorter length in the vertical direction, as compared to the downstream side, toward the upstream side in the drawing direction D in which the drawer body 7 moves from the storage position Q1 to the drawing position Q2. Specifically, as shown in FIG. 4, the vertical length H2 of the rear end of the heat exchanger 4 is shorter than the vertical length H1 of the front end of the heat exchanger 4. In the vertical direction, the vertical position of the rear end of the heat exchanger 4 is located lower than the vertical position of the front end of the heat exchanger 4.

[0027] 2 and 3, the evaporation filter 6 is mounted on the drawer body 7 and is located upstream of the heat exchanger 4 in the drawer direction D in which the drawer body 7 moves from the storage position Q1 to the drawer position Q2, that is, behind the heat exchanger 4, through which water is supplied from the water storage container 20 and through which the first air that has flowed through the first heat exchange flow path R1 flows. The evaporation filter 6 cools the first air by using the latent heat of the water.

[0028] As shown in FIG. 8, the vaporization filter 6 has a case 61 and a filter 68. The case 61 is a rectangular parallelepiped that is long in the vertical direction. The case 61 of the vaporization filter 6 has an upper wall 613, a second outer wall 65, a left wall 611, a lower wall 612, a front wall 617, a rear wall 618, and grips 641 and 642. Four openings 62 are formed in the upper wall 613 of the case 61. Each of the four openings 62 is formed in a rectangular shape that is long in the horizontal direction in a plan view. The four openings 62 are arranged in the horizontal direction at a predetermined interval. The upper wall 613 has flanges 614 to 616. The flange 614 protrudes obliquely upward to the left from the left end of the upper wall 613. The flange 615 protrudes obliquely upward to the right from the right end of the upper wall 613. In the left-right direction, the left end of flange 614 is located to the left of left wall 611, and the right end of flange 615 is located to the right of second outer wall 65. Flange 615 protrudes obliquely upward and forward in front of the four openings 62. As shown in FIG. 12, lower wall 612 is formed with a recess 619 that is recessed downward. A water drainage hole is formed at the lower end of recess 619. Water inside case 61 is drained through the water drainage hole into second receiving portion 84 of first drain pan 81, which will be described later.

[0029] The second outer wall 65 in this embodiment is the right wall of the case 61. The second outer wall 65 has a second groove 66 into which second ribs 853 and 854 of the opposing wall 803 described later fit. The second groove 66 is formed by ribs 661 and 662. The ribs 661 and 662 are convex parts that extend upward from the lower end of the right front part of the second outer wall 65 and protrude to the right. The part of the rib 661 above the center in the vertical direction extends in the vertical direction, and the lower part extends with an inclination toward the front as it goes downward. The rib 662 is disposed behind the rib 661 and extends linearly in the vertical direction. That is, the distance between the ribs 661 and 662 in the front-rear direction is larger toward the bottom. The minimum and maximum values ​​of the distance between the ribs 661 and 662 in the front-rear direction are each smaller than the minimum value of the distance between the ribs 551 and 552 in the front-rear direction. The vaporization filter 6 of this embodiment also has a second groove 66 in the left wall 611 opposite to the second outer wall 65 .

[0030] The front wall 617 of the case 61 is formed with an inlet 63 having a rectangular shape when viewed from the front. In the front-rear direction, the front wall 617 is located behind the front ends of the upper wall 613, the second outer wall 65, the left wall 611, and the lower wall 612. When the vaporization filter 6 is mounted on the drawer body 7, the front ends of the upper wall 613, the second outer wall 65, the left wall 611, and the lower wall 612 each abut against the rear surface of the heat exchanger 4. The upper wall 613, the second outer wall 65, the left wall 611, and the lower wall 612, the rear surface of the heat exchanger 4, and the front wall 617 of the vaporization filter 6 form a downstream portion of the first heat exchange flow path R1 of the first flow path P1, and prevent the first air from mixing with other air. The rear wall 618 of the case 61 is formed with an outlet 64 having a rectangular shape when viewed from the rear. The direction from the inlet 63 to the outlet 64 of the evaporation filter 6 is rearward, the same as the first direction K1 from the inlet 57 to the outlet 58 of the first heat exchange flow path R1 of the heat exchanger 4. The grip portion 641 is formed in the center of the second outer wall 65 in the front-to-rear direction in an inverted U-shape that is open downward when viewed from the right side. Similarly, the grip portion 642 is formed on the left wall 611. The grip portions 641, 642 are gripped by a user of the air conditioner 1 when attaching or detaching the evaporation filter 6 to or from the drawer body 7.

[0031] 4 and 5, the evaporation filter 6 has a water receiving rib 67 at its lower end in the up-down direction, which protrudes upstream in the pull-out direction D, i.e., rearward, from the first drain pan 81 and extends along a width direction W perpendicular to the pull-out direction D and the up-down direction. In the width direction W, the water receiving rib 67 extends between the frames 71 and 72. As shown in FIG. 6, an outlet 64 is formed above the water receiving rib 67 in the rear wall 618 of the case 61. As shown in FIG. 12, when the drawer body 7 is in the storage position Q1, the water receiving rib 67 is inserted into a recess 38 formed below a flow path forming portion 37 (described later) and recessed rearward, and receives water discharged from the flow path forming portion 37.

[0032] As shown in FIG. 5, the vaporization filter 6 has a shorter length in a width direction W perpendicular to the pull-out direction D and the vertical direction, as compared with the downstream side, toward the upstream side in the pull-out direction D in which the pull-out body 7 moves from the storage position Q1 to the pull-out position Q2. Specifically, the length L4 in the width direction W of the rear end of the vaporization filter 6 is shorter than the length L3 in the width direction W of the front end of the vaporization filter 6. That is, the vaporization filter 6 has a trapezoidal shape in a plan view. The vaporization filter 6 has a quadrangular pyramid shape with the front of the front wall 617 of the vaporization filter 6 as the bottom surface. The vaporization filter 6 has a shorter length in the vertical direction, as compared with the downstream side, toward the upstream side in the pull-out direction D in which the pull-out body 7 moves from the storage position Q1 to the pull-out position Q2. Specifically, the vertical length H4 of the rear end of the vaporization filter 6 is shorter than the vertical length H3 of the front end of the vaporization filter 6. In the vertical direction, the vertical position of the rear end of the vaporization filter 6 is located lower than the vertical position of the front end of the vaporization filter 6.

[0033] The operation for performing maintenance on at least one of the air filter 60, the heat exchanger 4, and the evaporation filter 6 will be described. The user of the air conditioner 1 operates the drawer handle 70 to move the engaged parts 79, 80 from the engaged position to the disengaged position, and moves the drawer body 7 from the storage position Q1 to the drawer position Q2. As shown in Figs. 2 and 11, when the drawer body 7 is in the drawer position Q2, the air filter 60, the heat exchanger 4, and the evaporation filter 6 are located outside the housing 2. As shown in Fig. 3, when the drawer body 7 is in the drawer position Q2, the user of the air conditioner 1 can remove each of the air filter 60, the heat exchanger 4, and the evaporation filter 6 from the drawer body 7. As shown in FIG. 4, the flange portion 49 of the heat exchanger 4 abuts against the upper surface 69 of the evaporation filter 6 from above, so that when removing the evaporation filter 6 from the drawer body 7, the user removes the heat exchanger 4 from the drawer body 7 and then removes the evaporation filter 6 from the drawer body 7.

[0034] When mounting the air filter 60 in the drawer body 7, the user places the air filter 60 between the decorative plate 73 and the support plate 734 in the front-rear direction. When mounting the heat exchanger 4 and the vaporization filter 6 in the drawer body 7, the user first mounts the vaporization filter 6 in the drawer body 7. The facing wall 803 has second ribs 853 and 854. The second outer wall 65 has a second groove 66. The user places the second ribs 853 and 854 of the facing wall 803 between the ribs 661 and 662 of the vaporization filter 6 in the front-rear direction, and mounts the vaporization filter 6 in the drawer body 7. In the front-rear direction, the second ribs 853 and 854 of the facing wall 803 are positioned between the ribs 661 and 662. The upper front end of the second rib 853 abuts against the upper rear end of the rib 661. The rear end of the second rib 854 abuts against the front end of the rib 552. Similarly, the second ribs 853, 854 formed on the left wall 804 are arranged in the second groove 66 formed on the left wall 611 of the vaporization filter 6. The user mounts the heat exchanger 4 in the drawer body 7 next to the vaporization filter 6. The facing wall 803 has first ribs 851, 852. The first outer wall 54 has a first groove 55. In the front-rear direction, the first ribs 851, 852 of the facing wall 803 are arranged between the ribs 551, 552. The user mounts the heat exchanger 4 in the drawer body by arranging the first ribs 851, 852 of the facing wall 803 between the ribs 551, 552 in the front-rear direction. The front end of the first rib 851 abuts against the rear end of the rib 551. The upper rear end of the first rib 852 abuts against the upper front end of the rib 552. After completing maintenance, the user moves the drawer body 7, which mounts the air filter 60, the heat exchanger 4, and the evaporation filter 6, from the drawer position Q2 to the storage position Q1. In the process of moving from the drawer position Q2 to the storage position Q1, the engaged portions 79, 80 move from the engaging position to the disengaging position, and then move to the engaging position and engage with the engaging portions 93, 94.

[0035] As shown in FIG. 13, the water storage container 20 stores water. The water storage container 20 of this embodiment includes a first tank 201 and a second tank 202. The first tank 201 stores water. The first tank 201 of this embodiment includes first tanks 211 and 221 having the same configuration. Hereinafter, the configuration of the first tank 211 will be described, and the description of the configuration of the first tank 221 will be omitted. The first tank 211 has a rectangular parallelepiped shape that is long in the front-rear direction, and includes a first tank handle 214, a water supply port 213, and a check valve 215. The first tank handle 214 is an H-shaped part in front view provided at the front end of the first tank 211. The water supply port 213 is provided on a bottom surface 212 of the first tank 211, and is an opening through which water supplied from inside the first tank 211 to the second tank 202 flows. The water supply port 213 is formed in a cylindrical shape downward from the bottom surface 212. The check valve 215 is disposed inside the water supply port 213. When the check valve 215 of the first tank 211 is pushed upward by a convex portion 207 of the second tank 202 described later, the check valve 215 opens a flow path through which the water of the first tank 211 flows from the water supply port 213 to the outside of the first tank 211. When the check valve 215 is separated from the second tank 202 and is not pushed upward, the check valve 215 closes a flow path through which the water of the first tank 211 flows from the water supply port 213 to the outside of the first tank 211. When the check valve 215 of the first tank 221 is pushed upward by a convex portion 208 of the second tank 202 described later, the check valve 215 opens a flow path through which the water of the first tank 221 flows from the water supply port 213 to the outside of the first tank 221. The first tank 211 is, for example, removed from the housing 2 and refilled with tap water or the like, and then housed in the housing 2. A bottom surface 212 of the first tank 211 is located above a bottom wall 210 of the second tank 202 described below. When the water level of the second tank 202 falls below a predetermined value, water in the first tank 211 is supplied to the second tank 202 through a water supply port 213.

[0036] As shown in FIG. 13 to FIG. 15, the second tank 202 is a rectangular box with an opening formed at the top, and is provided below the vaporization filter 6 and the drain pan 8. The second tank 202 stores water to be supplied to the vaporization filter 6 and the heat exchanger 4. The second tank 202 of this embodiment is removably disposed in the housing 2, and stores water supplied from the first tank 201. The second tank 202 includes a second tank handle 204, an in-line filter 205, a water level sensor 206, and protrusions 207 and 208 in an area R surrounded by an inner surface 209 of the second tank 202. The second tank handle 204 is disposed in the center of the second tank 202 in the longitudinal direction, that is, in the left-right direction. The second tank handle 204 is long in the left-right direction and has an inverted U shape that is open downward when viewed from the front. The center of the second tank handle 204 in the longitudinal direction and the center of the second tank 202 in the longitudinal direction coincide with each other. The second tank handle 204 in this embodiment is disposed in the short direction of the second tank 202, that is, at the center in the front-rear direction, more specifically, slightly rearward of the center in the front-rear direction.

[0037] The in-line filter 205 collects dust contained in the water in the second tank 202 and prevents the dust from flowing into the water supply passage P3, which is downstream of the second tank 202 and will be described later. The in-line filter 205 is removably attached to the second tank 202. The in-line filter 205 is disposed closer to the first side wall 21 than the second side wall 22 opposite the first side wall 21. The water level sensor 206 is disposed on the right rear of the second tank handle 204, detects the water level of the water stored in the second tank 202, and outputs a detection signal to the controller 300 of the air conditioner 1. The controller 300 controls the operation of the pump 9 based on the detection signal of the water level sensor 206. The controller 300 is configured, for example, by a microcomputer, and is disposed at a position facing the front left part of the third side wall 23. The protrusions 207 and 208 are cylindrical protrusions protruding upward from the bottom wall 210 of the second tank 202. The protrusion 207 is disposed to the left of the second tank handle 204, and the protrusion 208 is disposed to the right of the second tank handle 204. In other words, in the longitudinal direction of the second tank 202, the second tank handle 204 is located between the protrusions 207 and 208.

[0038] As shown in FIG. 15, the second tank check valve 18 is disposed in the second tank 202. The second tank check valve 18 is disposed downstream of the in-line filter 205 in the water supply flow path P3. The second tank check valve 18 is connected to an outlet forming portion 199 that protrudes downward from the lower surface of the bottom wall 210 of the second tank 202. When the second tank check valve 18 is pushed upward by a connection portion 399 of a second tank accommodation portion 39 described later, the second tank check valve 18 opens a flow path through which the water in the second tank 202 flows to the outside of the second tank 202. When the second tank check valve 18 is separated from the connection portion 399 and is not pushed upward, the second tank check valve 18 closes the flow path through which the water in the second tank 202 flows to the outside of the second tank 202.

[0039] The first tank housing section 140 is disposed in the housing 2 and houses the first tank 201. In the vertical direction, the first tank housing section 140 is provided below the rails 91, 92 and above the bottom wall 26 of the housing 2. More specifically, the first tank housing section 140 includes a lid 10, a plate section 155, and partition walls 141 to 144. The plate section 155 extends horizontally behind the lid 10 of the second tank housing section 39 described below. The partition walls 141 to 144 are plate-shaped and protrude upward from the plate section 155, and separate a space in which the first tank 211 is housed from a space in which the first tank 221 is housed. In the horizontal direction, the first tank 211 is disposed between the partition walls 141, 142, and the first tank 221 is disposed between the partition walls 143, 144. The front ends of the first tanks 211 and 221 are disposed above the lid 10 .

[0040] As shown in FIG. 14, the second tank housing portion 39 is disposed in the housing 2 and houses the second tank 202. The second tank housing portion 39 is disposed closer to the first side wall 21 than the second side wall 22 opposite to the first side wall 21, that is, forward of the center in the front-rear direction of the housing 2. The second tank housing portion 39 includes a lid 10, a hinge 15, a recess 341, and a seal member 16. As shown in FIG. 11, the hinge 15 fixes the lid 10 in the housing 2 so as to be rotatable between a closed position Q3 that covers the upper part of the second tank 202 disposed in the second tank housing portion 39 and an open position Q4 that opens the upper part of the second tank 202 disposed in the second tank housing portion 39. When the lid 10 is in the closed position Q3, the lid 10 extends horizontally forward relative to the hinge 15. When the lid 10 is in the open position Q4, the lid 10 extends upward relative to the hinge 15.

[0041] The lid 10 has a lid body 110 and a hollow cylinder 111. The lid body 110 has a lid body protrusion 112 protruding upward from an upper surface 115 of the lid body 110 between the cylinder 111 and the outlet 27 when the lid 10 is in the closed position. The lid body protrusion 112 is disposed between the cylinder 111 and the outlet 27 in the front-rear direction. The lid body 110 has insertion holes 113 and 114 through which the water supply port 213 of the first tank 201 is inserted. The outer periphery of the insertion holes 113 and 114 is tapered upward as it moves away from the outer periphery. The insertion hole 113 is formed to the left of the lid body protrusion 112, and the insertion hole 114 is formed to the right of the lid body protrusion 112. That is, the lid body protrusion 112 is formed between the insertion holes 113 and 114 in the left-right direction. The water supply port 213 of the first tank 211 is inserted into the insertion hole 113, and the water supply port 213 of the first tank 221 is inserted into the insertion hole 114. In a plan view, the front end of the cover projection 112 is inclined so as to approach the center WM in the width direction W toward the front. The cover projection 112 and the cylindrical body 111 are disposed at the center WM in the width direction W. The cover projection 112 is located in front of the cylindrical body 111.

[0042] As shown in FIG. 11, the cylinder 111 has a cylinder inlet 118 to which the inlet pipe 17 is connected, and a cylinder outlet 119 to which the lid body 110 is connected. When the lid 10 is in the open position Q4, the cylinder outlet 119 of the cylinder 111 is located above the cylinder inlet 118. When the lid 10 is in the closed position Q3, the cylinder outlet 119 is located below the cylinder inlet 118. When the lid 10 is in the closed position Q3, the upper end of the lid body protrusion 112 is located above the upper end of the cylinder 111. When the lid 10 is in the closed position Q3, a pair of left and right claws 131 are formed at the front end of the lid body 110. When the lid 10 is in the closed position Q3, the claws 131 engage with recesses 135 provided at the front end of the second tank housing portion 39 described below.

[0043] As shown in FIG. 14, the recess 341 has a hexagonal shape elongated in the left-right direction in a plan view. A connection part 399, a recess 398 recessed downward at the rear end, and external communication holes 391 to 397 communicating with the external space of the housing 2 are provided on the bottom wall 390 of the recess 341. The connection part 399 is formed in the center of the recess 341 in the left-right direction. The connection part 399 abuts against the second tank check valve 18 when the second tank 202 is accommodated in the second tank accommodation part 39. The recess 398 is a recessed part recessed downward at the rear end of the recess 341, and corresponds to the water level sensor 206 of the second tank 202. The external communication holes 391 to 397 are holes for discharging water that has flowed into the second tank accommodation part 39 to the outside of the housing 2. As shown in FIG. 17, a recess 270 recessed downward is formed in the lower wall 26, and holes 271 to 274 are formed at the four corners of the recess 270. The external communication holes 391 to 397 communicate with the external space of the housing 2 via the holes 271 to 274 formed in the bottom wall 26 of the housing 2, respectively. The external communication hole 391 is formed in the left rear part of the bottom wall 390, the external communication hole 392 is formed in the rear part of the center in the left-right direction of the bottom wall 390, and the external communication hole 393 is formed in the right rear part of the bottom wall 390. The external communication hole 394 is formed in the left front part of the bottom wall 390, and the external communication hole 395 is formed in the right front part of the bottom wall 390. The external communication hole 396 is formed in the left rear part of the recess 398, and the external communication hole 397 is formed in the right front part of the recess 398. The seal member 16 is a member having a hexagonal shape in a plan view, which is arranged on the outer periphery of the opening 400 of the recess 341. The seal member 16 is disposed between the lid 10 and the second tank 202 when the lid 10 is in the closed position Q3. The seal member 16 is made of an elastic material such as rubber.

[0044] 11 , the outlet pipe 19 is disposed in the housing 2, and is connected to the second tank 202 via the second tank check valve 18. One end of the outlet pipe 19 is connected to a connection portion 399 of the second tank accommodating portion 39 above the bottom wall 26 of the housing 2. The other end of the outlet pipe 19 is connected to the pump 9.

[0045] 11 to 16, an operation of attaching and detaching the second tank 202 to and from the housing 2 will be described. When removing the second tank 202 from the housing 2, the user first removes the first tanks 211 and 221 from the housing 2. The user moves the lid 10 from the closed position Q3 to the open position Q4. At this time, the inlet pipe 17 connected to the cylindrical body 111 is bent, and the cylindrical body inlet 118 is positioned below the cylindrical body outlet 119. The user grasps the second tank handle 204 and removes the second tank 202 from the recess 341 of the second tank storage section 39. The second tank check valve 18 arranged in the second tank 202 is separated from the connection section 399 of the second tank storage section 39, and blocks the flow path through which the water in the second tank 202 flows to the outside of the second tank 202. The user can perform maintenance on the second tank 202 and the second tank storage section 39 in a state in which the second tank 202 is removed from the housing 2. When mounting the second tank 202 in the housing 2, the user grasps the second tank handle 204 and places the second tank 202 in the recess 341 of the second tank housing portion 39. The second tank check valve 18 is pushed upward by the connection portion 399 of the second tank housing portion 39, and opens the flow path through which the water in the second tank 202 flows to the outside of the second tank 202. The user moves the lid 10 from the open position Q4 to the closed position Q3. The user places the first tanks 211, 221 in the first tank housing portion 140. A lid body protrusion 112 is formed on the cylinder 111 of the upper surface 115 of the lid 10. The lid body protrusion 112 guides the movement of the first tank 211 so that the first tank 211 is placed between the partition walls 141, 142 of the first tank housing portion 140. The cover projection 112 guides the movement of the first tank 221 so that the first tank 221 is disposed between the partition walls 143 and 144 of the first tank housing section 140. The cover projection 112 is located in front of the cylindrical body 111. The extension range of the cylindrical body 111 in the width direction W is included in the extension range of the cover projection 112 in the width direction W. Therefore, the cover projection 112 prevents the first tanks 211 and 221 from accidentally hitting the cylindrical body 111 when the first tanks 211 and 221 are attached. The cover projection 112 divides the first tank 211 and the first tank 221 in the left-right direction in front of the partition walls 141 to 144. By the above operation, each of the second tank 202 and the first tank 201 is attached to the housing 2.

[0046] As shown in FIG. 3, the drain pan 8 receives water discharged from the cooling unit 3. More specifically, the drain pan 8 is disposed immediately below the heat exchanger 4, receives water discharged from the second heat exchange passage R2, and forms a part of the second passage P2 upstream of the second heat exchange passage R2. The drain pan 8 of this embodiment has a first drain pan 81 and a second drain pan 82. As shown in FIG. 9 and FIG. 10, the first drain pan 81 is a rectangular dish-shaped pan disposed below the heat exchanger 4 and above the second tank 202. The first drain pan 81 is disposed in the drawer body 7 and receives water discharged from the second heat exchange passage R2. The first drain pan 81 is fixed to the frames 71 and 72. More specifically, as shown in FIG. 9, the lower surface 833 of the support portion 808 abuts against the frame 71 and is fixed to the frame 71 together with the rear end portion 762 of the beam member 76 disposed between the first drain pan 81 and the frame 71. 4 and 6, a lower surface 834 of the support portion 809 abuts against the frame 72, and is fixed to the frame 72 by a fixing member 773 together with a rear end portion 772 of a beam member 77 disposed between the first drain pan 81 and the frame 72. As shown in FIG. 12, a front end portion of the first drain pan 81 abuts against an upper rear portion of the pull-out handle 70.

[0047] The first drain pan 81 has a front wall 801, a rear wall 802, an opposing wall 803, a left wall 804, a first receiving portion 83, a second receiving portion 84, support portions 808 to 810, a drain wall 85, and a drain hole 87. The first drain pan 81 is connected to the drain piping 90. The front wall 801 faces the rear surface of the decorative panel 73. The front wall 801 is formed with a notch 806 cut downward from the upper end of the front wall 801. The lower end of the notch 806 is located lower than the lower end of the intake port 74. The rear wall 802 is formed with a notch 807 cut downward from the upper end of the rear wall 802. The opposing wall 803 is an example of the first opposing wall and the second opposing wall of the present invention. The opposing wall 803 is a right wall of the first drain pan 81 that connects the right end of the front wall 801 and the right end of the rear wall 802 in the front-rear direction. The left wall 804 connects the left end of the front wall 801 and the left end of the rear wall 802 in the front-rear direction.

[0048] The first receiving portion 83 receives water discharged from the second heat exchange passage R2. A bottom wall 831 of the first receiving portion 83 is inclined downward toward the rear. A front wall 832 of the first receiving portion 83 is inclined downward toward the rear. A front end of the front wall 832 is connected to the front wall 801 below the notch 806, and a rear end of the front wall 832 is connected to a front end of the bottom wall 831. The second receiving portion 84 is disposed behind the first receiving portion 83 and receives water discharged from the evaporation filter 6. A bottom wall 841 of the second receiving portion 84 is inclined downward toward the center MW in the width direction W. That is, the bottom wall 841 of the second receiving portion 84 is inclined in a V-shape when viewed from behind. The bottom wall 841 has a groove portion 820 extending in the front-rear direction and recessed downward in the center of the width direction W. In the vertical direction, the lowest end 835 of the bottom wall 831 of the first receiving portion 83 is located below the lowest end 842 of the bottom wall 841 of the second receiving portion 84 and above the lowest end 843 of the groove portion 820 of the second receiving portion 84.

[0049] The drain wall 85 separates the first receiving portion 83 and the second receiving portion 84. A communication hole 86 is formed in the lower end of the drain wall 85, communicating the first receiving portion 83 and the second receiving portion 84 in the front-rear direction. The front lower end of the communication hole 86 is connected to the lower end of the upper surface of the bottom wall 831 of the first receiving portion 83. The length in the width direction W of the communication hole 86 is narrower than the width direction length of the groove portion 820. The vertical length of the communication hole 86 on the back surface of the drain wall 85 is longer than the vertical length of the communication hole 86 on the front surface of the drain wall 85.

[0050] The support parts 808 and 809 function as the first support part of the present invention, and the support parts 808 to 810 function as the second support part of the present invention. As shown in FIG. 10, the support part 808 is a part extending in the front-rear direction and disposed between the left wall 804 and the first and second receiving parts 83 and 84 in the width direction W. The support part 809 is a part extending in the front-rear direction and disposed between the opposing wall 803 and the first and second receiving parts 83 and 84 in the width direction W. The support part 810 is a part extending in the left-right direction connecting the rear end of the support part 808 and the rear end of the support part 809. The support parts 808 and 809 support the heat exchanger 4 from below. More specifically, the support part 808 abuts against the left wall lower end 591 of the heat exchanger 4. The support part 809 abuts against the right wall lower end 592 of the heat exchanger 4. As a result, the support portions 808 and 809 support the heat exchanger 4 from below, and the air conditioner 1 prevents air from entering between the first receiving portion 83 and the heat exchanger 4 from the width direction W. The support portions 808 to 810 support the vaporization filter 6 from below together with the drain wall 85. More specifically, the support portion 808 abuts against the lower end of the left wall 611 of the vaporization filter 6. The support portion 809 abuts against the lower end of the second outer wall 65 of the vaporization filter 6. The support portion 810 abuts against the lower end of the rear wall 618 of the vaporization filter 6. The drain wall 85 abuts against the front wall 617 of the vaporization filter 6. In other words, the portion where the vaporization filter 6 and the second receiving portion 84 abut is annular in plan view. As a result, the support portions 808 to 810 support the evaporation filter 6 from below together with the drain wall 85, and the air conditioner 1 prevents air from entering between the second receiving portion 84 and the evaporation filter 6. The first receiving portion 83 and the second receiving portion 84 are communicated with each other through a communication hole 86 formed in the drain wall 85, but since the communication hole 86 is relatively small, mixing of air other than the second air into the second heat exchange passage R2 is suppressed.

[0051] 10 , the drain hole 87 is located upstream of the first receiving portion 83 in the pull-out direction D in which the drawer body 7 moves from the storage position Q1 to the pull-out position Q2, and drains water received by the first receiving portion 83. The drain hole 87 is a hole that is circular in front view and formed in the rear wall 802, and communicates with the rear lower end of the groove portion 820.

[0052] The drain pipe 90 is connected to the rear end of the first drain pan 81, more specifically, to the drain hole 87 of the first drain pan 81. The drain pipe 90 is an L-shaped pipe that extends rearward from the rear end of the first drain pan 81 and then bends downward. When the drawer body 7 is in the storage position Q1 and when it is in the pull-out position Q2, the water received by the first drain pan 81 flows toward the second drain pan 82. More specifically, as shown in FIG. 12, when the drawer body 7 is in the storage position Q1, the drain pipe 90 is located above the rear end 821 of the second drain pan 82. When the drawer body 7 is in the pull-out position Q2, as shown in FIG. 11, the drain pipe 90 abuts against the front end 822 of the second drain pan 82. Therefore, the second drain pan 82 receives the water that has flowed through the drain pipe 90 both when the drawer body 7 is in the storage position Q1 and when the drawer body 7 is in the drawn-out position Q2.

[0053] As shown in FIG. 3, FIG. 11, and FIG. 12, the second drain pan 82 is provided in the housing 2. The second drain pan 82 is a dish-shaped pan that is long in the front-rear direction. In the front-rear direction, the second drain pan 82 is disposed below the rails 91, 92 and above the first tank 201. In the left-right direction, the second drain pan 82 is disposed between the rails 91, 92 and between the first tanks 211, 221. The length of the second drain pan 82 in the width direction W is shorter than the length of the first drain pan 81 in the width direction W, and more specifically, shorter than half the length of the first drain pan 81 in the width direction W. In the front-rear direction, the rear end portion 821 of the second drain pan 82 extends rearward beyond the front end of the flow path forming portion 37. The right side surface shape of the second drain pan 82 is V-shaped. In the front-rear direction, the lower end portion 823 of the second drain pan 82 is located rearward from the center of the second drain pan 82 in the front-rear direction. A lower end portion 823 of the second drain pan 82 is connected to the piping 88. As shown in FIG.

[0054] As shown in Fig. 12, the inlet pipe 17 is flexible and connects the lid 10 of the second tank housing portion 39 and the second drain pan 82 of the drain pan 8. The inlet pipe 17 is, for example, a hose made of resin. An upper end 171 of the inlet pipe 17 is connected to the pipe 88 of the second drain pan 82, and a lower end 172 of the inlet pipe 17 is connected to the cylindrical body 111 of the lid 10. The length of the inlet pipe 17 is set in consideration of the range in which the lid 10 can be opened and closed. The water stored in the second tank 202 includes water collected in the second tank 202 via the drain pan 8 and the inlet pipe 17.

[0055] As shown in FIG. 3, FIG. 11, and FIG. 12, the flow path forming portion 37 is disposed inside the housing 2 and forms a first flow path P1 of the first air that has flowed through the vaporization filter 6. In the vertical direction, the flow path forming portion 37 is formed above the rails 91 and 92. The flow path forming portion 37 is formed in a cylindrical shape extending in the vertical direction along the second side wall 22 of the housing 2 behind the vaporization filter 6. An inlet 371 is formed in a front surface 370 of the flow path forming portion 37 in a rectangular shape in a plan view. The lower end of the rear wall 373 of the flow path forming portion 37 is inclined downward toward the front. A recess 38 that is long in the left-right direction and recessed backward is formed below the flow path forming portion 37. When the drawer body 7 is in the storage position Q1, the front surface 370 of the flow path forming portion 37 abuts against the rear wall 618 of the vaporization filter 6. A lower front end 381 of the recess 38 abuts against the rear wall 618 of the vaporization filter 6 below the water receiving rib 67. When the drawer body 7 is in the storage position, the rear wall 618 abuts against the lower front end 381 of the recess 38 and the front surface 370 of the flow path forming portion 37, thereby ensuring airtightness between the evaporation filter 6 and the flow path forming portion 37 in the first flow path P1 when the drawer body 7 is in the storage position Q1.

[0056] As shown in FIG. 11 and FIG. 17, the water supply unit 13 supplies the water stored in the second tank 202 to the heat exchanger 4 and the evaporation filter 6. The water supply unit 13 includes the pump 9, the controller 300, the outlet pipe 19, the fourth pipe 95, the third pipe 98, the first pipe 96, and the second pipe 97. The water supply flow path P3 from the second tank 202 to the cooling unit 3 includes the outlet pipe 19, the pump 9, the fourth pipe 95, the third pipe 98, the first pipe 96, and the second pipe 97, which are connected in this order from the upstream to the downstream in the flow direction of the water in the water supply flow path P3. As shown in FIG. 14, the pump 9 sends water to each of the first pipe 96 and the second pipe 97. The pump 9 is disposed between the second side wall 22 and the second tank 202, more specifically, at a position adjacent to the second side wall 22. The controller 300 is connected to the pump 9 by a communication line. The pump 9 is driven or stopped based on a control signal output from the controller 300 in response to a detection signal from the water level sensor 206 .

[0057] As shown in FIG. 11, the outlet pipe 19 extends in the front-rear direction below the plate portion 155 of the first tank housing portion 140, and connects the second tank 202 and the pump 9. As shown in FIG. 11 and FIG. 17, the fourth pipe 95 is connected to the pump 9 and extends upward from the pump 9. The fourth pipe 95 is inserted into a hole 825 that is formed in the rear end portion 821 of the second drain pan 82 and penetrates vertically. The fourth pipe 95 is bent leftward near the upper end of the second drain pan 82 to the vicinity of the third side wall 23. The right end of the fourth pipe 95 is connected to the lower end of the third pipe 98 near the third side wall 23. As shown in FIG. 18, the third pipe 98 is arranged along the third side wall 23 and connected to the first pipe 96. The third piping 98 has a first portion 981 extending upward from the right end of the fourth piping 95 along the third side wall 23, more specifically, along the support 284, a second portion 982 extending forward from an upper end of the first portion 981 along the third side wall 23, a third portion 983 extending leftward from a front end of the second portion 982, and a fourth portion 984 extending rearward from a left end of the third portion 983. The third piping 98 has a J-shaped planar shape. The rear end of the fourth portion 984 is connected to the first piping 96.

[0058] As shown in FIG. 11 and FIG. 18, the first pipe 96 is disposed directly above the heat exchanger 4, and water supplied to the second heat exchange passage R2 flows through the first pipe 96. The first pipe 96 is disposed between a first fan case 107 and a second fan case 108, which will be described later, in the front-rear direction. The first pipe 96 is disposed in the second passage P2, upstream of a fan motor 103, which will be described later, and downstream of the heat exchanger 4. The first pipe 96 includes water supply pipes 961 to 963 that are long in the left-right direction. The water supply pipes 961 to 963 are arranged in the front-rear direction at a predetermined interval X3. The water supply pipes 961 to 963 each have the same shape as each other. The water supply pipe 961 includes a support plate portion 964 at the right end portion of the water supply pipe 961, and the support plate portion 964 is fixed to a support plate 951 fixed to the lower surface of the first fan case 107. The support plate 951 extends in the front-rear direction along the third side wall 23. Similarly, the water supply pipe 962 has a support plate portion 965 at the right end of the water supply pipe 962, and the support plate portion 965 is fixed to the support plate 951. The water supply pipe 963 has a support plate portion 966 at the right end of the water supply pipe 963, and the support plate portion 966 is fixed to the support plate 951. A plurality of nozzles 921 are formed on the lower surface of each of the water supply pipes 961 to 963 and are arranged in the left-right direction at an interval X1. Each of the plurality of nozzles 921 of the first piping 96 faces the outlet 50 of the second heat exchange passage R2. The water supply pipes 961, 962 are connected by a connecting pipe 985 extending in the front-rear direction. The water supply pipes 962, 963 are connected by a connecting pipe 986 extending in the front-rear direction.

[0059] The second pipe 97 is disposed behind the first pipe 96 and directly above the vaporization filter 6, and water supplied to the vaporization filter 6 flows through the second pipe 97. The second pipe 97 extends in the left-right direction. A distance X4 between the second pipe 97 and the first pipe 96 in the front-rear direction is longer than the distance X3. The water supply pipe 963 and the second pipe 97 are connected by a connecting pipe 987 extending in the front-rear direction. The connecting pipe 987 is gently bent in a Z-shape in a right side view. In a plan view, the connecting pipes 985 to 987 are disposed on the same straight line as the fourth portion 984 of the third pipe 98. The second pipe 97 includes a support plate portion 967 at a right end portion of the second pipe 97, and the support plate portion 967 is fixed to the support plate 951. A plurality of nozzles 922 are formed on the lower surface of the second pipe 97, arranged at a distance X2 in the left-right direction. Each of the nozzles 922 of the second pipe 97 faces the upper surface 69 or the opening 62 of the vaporization filter 6. The interval X2 is larger than the interval X1. The interval X2 is 1.5 to 2.5 times the interval X1. The total number of the nozzles 921 of the first pipe 96 is larger than the total number of the nozzles 922 of the second pipe 97. The second pipe 97 is disposed vertically below the first pipe 96. The first vertical interval D1 between the first pipe 96 and the heat exchanger 4 and the vertical interval D3 between the first pipe 96 and the heat exchanger body 41 are larger than the second vertical interval between the second pipe 97 and the vaporization filter 6. The nozzles 922 of the second pipe 97 are inserted into the openings 62 formed in the upper surface 69 of the vaporization filter 6 and are close to the filter 68. Specifically, the second pipe 97 is disposed a distance D2 below the upper surface 69 of the vaporization filter 6, and a second vertical distance between the second pipe 97 and the vaporization filter 6 is 0. The second pipe 97 and the filter 68 of the vaporization filter 6 are spaced apart from each other by a distance D4 in the vertical direction.

[0060] 18, in the water supply flow path P3, the water pumped up by the pump 9 flows upward through a first portion 981 of the third pipe 98 in a direction C1 along the third side wall 23, and then flows forward through a second portion 982 of the third pipe 98 in a direction C2 along the third side wall 23. In front of the first pipe 96 in the front-rear direction, the water flows leftward through a third portion 983 of the third pipe 98 in a direction C3 separating the third side wall 23, and then flows rearward through a fourth portion 984 of the third pipe 98 in a direction C4 parallel to the third side wall 23. At the connection portions of the first pipe 96 with each of the water supply pipes 961 to 963, the water flows leftward in a direction C5 separating the third side wall 23, rightward in a direction C6 approaching the third side wall 23, and in the direction C4. The water flows along the connecting pipe 987 in a direction C7 parallel to the third side wall 23, and then, at the connecting portion between the connecting pipe 987 and the second piping 97, it branches off and flows in a direction C5 and a direction C6.

[0061] As shown in FIG. 17, the pressing members 331 and 332 are plate-shaped and long in the front-rear direction. When the drawer body 7 is in the storage position Q1, the pressing members 331 and 332 come into contact with the upper surface 48 of the heat exchanger 4 and press the upper surface 48 of the heat exchanger 4 downward. The pressing members 331 and 332 are symmetrical to each other. In the up-down direction, the pressing members 331 and 332 are disposed above the heat exchanger 4 and below the first fan 101. The pressing member 331 is disposed to the left of the first pipe 96 and the second pipe 97, and the pressing member 332 is disposed to the right of the first pipe 96 and the second pipe 97. In the width direction W, the first pipe 96 and the second pipe 97 are disposed between the pressing members 331 and 332. Hereinafter, the pressing member 331 will be described, and the description of the pressing member 332 will be omitted.

[0062] As shown in FIG. 12 and FIG. 17, the pressing member 331 faces the left part of the upper surface 48 of the heat exchanger 4, and the pressing member 332 faces the right part of the upper surface 48 of the heat exchanger 4. The pressing member 331 has a first protrusion 33 and a second protrusion 34. The first protrusion 33 protrudes downward inside the housing 2, and contacts the upper surface 48 of the heat exchanger 4 when the drawer body 7 is in the storage position Q1. In the front-rear direction, the formation range of the first protrusion 33 and the formation range of the water supply pipe 961 of the first piping 96 overlap each other. The second protrusion 34 protrudes downward from the lower end of the first protrusion 33 upstream of the drawer body 7 from the storage position Q1 to the drawer position Q2 inside the housing 2, and contacts the upper surface 48 of the heat exchanger 4 when the drawer body 7 is in the storage position Q1. The second protrusion 34 is disposed below the front end of the first fan case 107 described later. In the front-rear direction, the second protrusion 34 contacts the rear end of the upper surface 48 of the heat exchanger 4. That is, the pressing member 331 contacts the left part of the upper surface 48 of the heat exchanger 4 at two points, the first protrusion 33 and the second protrusion 34, which are arranged spaced apart in the front-rear direction, and presses the heat exchanger 4 downward. Similarly, the pressing member 332 contacts the right part of the upper surface 48 of the heat exchanger 4 at two points, the first protrusion 33 and the second protrusion 34, which are arranged spaced apart in the front-rear direction, and presses the heat exchanger 4 downward. That is, the pressing members 331 and 332 press the upper surface 48 of the heat exchanger 4 downward at four points.

[0063] As shown in FIG. 12, the first wall 35 is a V-shaped plate protruding downward inside the housing 2. The first wall 35 extends in the left-right direction and is fixed to the bottom surface of the second fan case 108 by a fixing member. A cushioning material 351 is fixed to the front surface of the first wall 35. When the drawer body 7 is in the storage position Q1, the first wall 35 abuts against the back surface of the first abutment portion 51 of the heat exchanger 4 via the cushioning material 351. The second wall 36 is a V-shaped plate protruding downward upstream, that is, rearward, of the first wall 35 in the drawing direction D in which the drawer body 7 moves from the storage position Q1 to the drawing position Q2. The second wall 36 extends in the left-right direction and is fixed to the bottom surface of the first fan case 107 by a fixing member. A cushioning material 361 is fixed to the front surface of the second wall 36. When the drawer body 7 is in the storage position Q1, the second wall 36 abuts against the rear surface of the second abutment portion 52 of the heat exchanger 4 via the cushioning material 361.

[0064] As shown in FIG. 11 and FIG. 12, the first fan 101 circulates the first air through a first flow path P1 including a first heat exchange flow path R1 from the inlet 74 to the first outlet 29. The first fan 101 is disposed near the first outlet 29, more specifically, in a first fan case 107 at the rear upper part of the housing 2. In the direction in which the first air flows through the first heat exchange flow path R1, that is, in the rear, the first fan 101 is disposed at a position overlapping with the vaporization filter 6. The second fan 102 is disposed near the second outlet 30, more specifically, in a second fan case 108 at the front upper part of the housing 2. The second fan 102 circulates the second air through a second flow path P2 including a second heat exchange flow path R2 from the inlet 74 to the second outlet 30. In the direction in which the first air flows through the first heat exchange flow path R1, the second fan 102 is disposed at a position overlapping with the heat exchanger 4. The second fan 102 circulates the second air through the second heat exchange passage R2, and has a smaller output than the first fan 101. More specifically, the diameter Y2 of the second fan 102 is smaller than the diameter Y1 of the first fan 101.

[0065] The fan motor 103 drives the first fan 101 and the second fan 102. The rotation shaft 104 of the fan motor 103 is parallel to the direction in which the first air flows through the first heat exchange passage R1. The rear end of the rotation shaft 104 of the fan motor 103 is connected to the first fan 101, and the front end of the rotation shaft 104 is connected to the second fan 102. The power supply harness 99 is arranged along the fourth side wall 24, more specifically, the support 283, and supplies power to the fan motor 103. The cord 100 is inserted into a hole provided in the rear end of the second side wall 22 of the housing 2 and connected to the power supply harness 99. Power from the power supply harness 99 is supplied to at least the pump 9, the microcomputer, and the fan motor 103. The partition plate 105 is disposed between the first fan 101 and the second fan 102, and prevents the first air transported by the first fan 101 and the second air transported by the second fan 102 from mixing. In this embodiment, the partition plate 105 is the front wall of the first fan case 107. The fan motor 103 is disposed between the partition plate 105 and the first fan 101. The fan motor 103 is disposed in the second flow path P2, and the second air transported by the second fan 102 cools the fan motor 103. Therefore, the air conditioner 1 can efficiently cool the fan motor 103 by utilizing the cold energy of the second air without increasing the temperature of the first air transported by the first fan 101.

[0066] The operation of the air conditioner 1 having the above configuration will be described with reference to Fig. 2. The air conditioner 1 drives the fan motor 103 to draw air from the air-conditioned space through the inlet 74. The drawn-in air passes through the air filter 60 and flows into the heat exchanger 4. The air that flows into the heat exchanger 4 is divided into second air flowing through the second flow path P2 and first air flowing through the first flow path P1.

[0067] The air conditioner 1 drives the pump 9 to supply the water stored in the second tank 202 to each of the second heat exchange passage R2 and the evaporation filter 6. A portion of the water supplied to the second heat exchange passage R2 and the evaporation filter 6 is recovered in the second tank 202 via the drain pan 8. The first piping 96 drips the water supplied from the second tank 202 by the pump 9 into the second heat exchange passage R2.

[0068] The second air flows downward from the inlet 74, then turns upward at the first receiving portion 83 of the first drain pan 81, and flows upward through the second heat exchange passage R2. In the second heat exchange passage R2, the second air and the water dripping from the first pipe 96 are mixed. More specifically, the second direction K2 from the inlet 56 to the outlet 50 of the second heat exchange passage R2, which is the upward direction, is opposite to the downward direction, which is the flow direction of the water supplied from the first pipe 96. Therefore, the water stays in the second heat exchange passage R2 for a longer time than when the second direction K2 and the flow direction of the water are the same. The water stored in the second tank 202 includes water that is collected from the evaporative filter 6 after the air conditioner 1 is operated and cooled by the heat of evaporation. Therefore, the temperature of the water supplied from the second tank 202 becomes lower than the temperature of the second air immediately after it flows into the second heat exchange passage R2 depending on the operating status of the air conditioner 1. The second air is cooled by exchanging sensible heat with the water dripped from the first piping 96. The second air is also cooled by the heat of vaporization generated when the water dripped from the first piping 96 into the second heat exchange passage R2 is vaporized.

[0069] A first direction K1 from the inlet 57 of the first heat exchange flow passage R1 of the heat exchanger 4 toward the outlet 58 and a second direction K2 from the inlet 56 of the second heat exchange flow passage R2 toward the outlet 50 are perpendicular to each other. The second air flowing through the second heat exchange flow passage R2 is cooled by water supplied from the second tank 202, and the first air is cooled by the second air. That is, in the heat exchanger 4, sensible heat exchange is performed between the first air and the second air through the sheet 45 of the partition wall 42. After flowing upward through the second heat exchange flow passage R2, the second air passes near the fan motor 103 arranged in the second flow passage P2 and is discharged to the outside of the air conditioner 1 from the second outlet 30. At this time, the second air cools the fan motor 103. In a system that does not cool the second air by heat of evaporation, like air conditioner 1, if there is a second air outlet 30 from which the second air is blown out in front of housing 2, that is, on the side to which the first air is to be sent, the second air may warm the air supply duct 291 for the first air, causing the temperature of the first air to rise. However, in air conditioner 1, the second air is also evaporatively cooled by heat exchanger 4, so there is a low possibility that the first air will be warmed by the second air, compared to a cooling system that does not use evaporative cooling.

[0070] The first air that flows in the first heat exchange flow passage R1 of the heat exchanger 4 in the first direction K1, that is, backward, passes through the vaporization filter 6 backward. Water supplied from the second tank 202 is dripped onto the vaporization filter 6 through the second pipe 97 provided on the upper part of the vaporization filter 6. Since the inside of the first flow passage P1 is kept at a negative pressure, the water supplied from the second tank 202 is sucked into the inside of the vaporization filter 6 through the nozzle 922 of the second pipe 97 and permeates into the vaporization filter 6. The second distance between the nozzle 922 and the vaporization filter 6 in the vertical direction is 0, and air is unlikely to flow into the vaporization filter 6 through the opening 62 formed on the upper surface 69 of the vaporization filter 6. The vaporization of the water that permeates the vaporization filter 6 is promoted by the passage of the first air through the vaporization filter 6, and the water is vaporized, that is, evaporated into water vapor and is contained in the first air. The first air is cooled by the heat of vaporization at this time, and the temperature of the first air is reduced. The cooled first air flows upward through flow path forming portion 37, and is then blown out by first fan 101 from first air outlet 29 into the space to be air conditioned.

[0071] With the above-described configuration, the air conditioner 1 can perform two-stage cooling of the first air blown into the conditioned space, including primary cooling by the heat exchanger 4 and secondary cooling by the evaporative filter 6. Therefore, the air conditioner 1 can further lower the temperature of the first air compared to, for example, a direct evaporation method that uses only the evaporative filter 6.

[0072] The air conditioner of the above embodiment includes a water storage container, a heat exchanger, a housing, and a drawer body. The water storage container stores water. The heat exchanger has a partition wall separating a first heat exchange flow path through which a first air flows and a second heat exchange flow path through which a second air and water supplied from the water storage container flow. The housing houses the heat exchanger and the water storage container. The drawer body is equipped with the heat exchanger and moves between a housing position where the heat exchanger is disposed within the housing and a drawer position where the heat exchanger is disposed outside the housing. When moved to the drawer position, the drawer body of the air conditioner can place the heat exchanger outside the housing. The drawer body of the air conditioner contributes to improving the ease of maintenance of the heat exchanger by a user of the air conditioner.

[0073] The air conditioner includes a first drain pan provided in the drawer body to receive water discharged from the second heat exchange flow path. The first drain pan of the air conditioner contributes to preventing water discharged from the second heat exchange flow path of the heat exchanger from adhering to unintended locations within the housing when the drawer body is moved to the drawer position. The first drain pan of the air conditioner contributes to preventing water discharged from the second flow path of the heat exchanger from leaking around the housing when the drawer body is moved to the drawer position.

[0074] The air conditioner includes a second drain pan provided in the housing, and a drain pipe connected to the first drain pan and through which water received by the first drain pan flows toward the second drain pan when the drawer body is in the stored position and when the drawer body is in the pulled-out position. The second drain pan and drain pipe of the air conditioner contribute to preventing water from overflowing from the first drain pan and water discharged from the second heat exchange flow path of the heat exchanger from adhering to unintended locations within the housing when the drawer body moves to the pulled-out position. The second drain pan and drain pipe of the air conditioner contribute to preventing the drawer body from becoming heavy due to water received in the first drain pan, making it difficult to move the drawer body between the stored position and the pulled-out position.

[0075] The first drain pan of the air conditioner has a first receiving portion that receives water discharged from the second heat exchange flow path, and a drain hole that is located upstream of the first receiving portion in the pull-out direction in which the pull-out body moves from the stored position to the pull-out position and through which the water received by the first receiving portion is discharged. The drain pipe is connected to the drain hole. The drain pipe of the air conditioner is shorter in length and contributes to a simpler configuration than when the drain pipe is connected to a portion of the first drain pan that is downstream in the pull-out direction.

[0076] The air conditioner is mounted in the drawer body, is located upstream of the heat exchanger in the drawer direction in which the drawer body moves from the stored position to the drawer position, and is equipped with an evaporation filter through which water is supplied from a water storage container and through which the first air that has circulated through the first heat exchange flow path flows. The drawer body of the air conditioner contributes to improving the maintainability of the heat exchanger and the evaporation filter compared to a case in which the evaporation filter is not mounted in the drawer body.

[0077] The air conditioner is mounted on the drawer body, is located upstream of the heat exchanger in a drawer direction in which the drawer body moves from the stored position to the drawer position, and includes an evaporation filter through which water is supplied from a water storage container and through which first air circulated through a first heat exchange flow path flows. The first drain pan has a first receiving portion that receives water discharged from the second heat exchange flow path, a second receiving portion that receives water discharged from the evaporation filter, and a drain wall that separates the first receiving portion and the second receiving portion. A communication hole is formed in a lower end of the drain wall to communicate between the first receiving portion and the second receiving portion. The first drain pan of the air conditioner can prevent the second air circulating through the first drain pan from mixing with other air.

[0078] The first drain pan of the air conditioner has a first support portion that supports the heat exchanger from below. The first drain pan of the air conditioner can simplify the configuration of the drawer body compared to a case in which the first support portion is provided apart from the first drain pan.

[0079] The first drain pan of the air conditioner has a second support portion that supports the evaporation filter from below together with the drain wall. The first drain pan of the air conditioner can simplify the configuration of the drawer body compared to a case in which the second support portion is provided in addition to the first drain pan.

[0080] The air conditioner includes rails that guide the movement of the drawer body. The drawer body has a frame that fits onto the rails and a decorative panel. The decorative panel is connected to a downstream end of the frame in a drawer direction in which the drawer body moves from the storage position to the drawer position, extends in a direction intersecting the longitudinal direction of the frame, and forms an outer peripheral surface of the air conditioner together with the housing when the drawer body is in the storage position, forming an intake port through which the first air taken into the housing flows. The air conditioner includes an air filter that is mounted on the drawer body and disposed between the intake port and the heat exchanger. The drawer body of the air conditioner contributes to improving the maintainability of the heat exchanger and the air filter compared to a case in which the air filter is not mounted on the drawer body.

[0081] The air conditioner includes a rail that guides the movement of the drawer body. The first drain pan is disposed on the frame. The drawer body includes a frame that fits onto the rail, a decorative panel, and a beam member. The decorative panel is connected to a downstream end of the frame in the drawer direction in which the drawer body moves from the storage position to the drawer position, extends in a direction intersecting the longitudinal direction of the frame, and forms the outer circumferential surface of the air conditioner together with the housing when the drawer body is in the storage position. The beam member connects the frame and the decorative panel. The beam member of the air conditioner contributes to dispersing the force applied to the decorative panel when the drawer body moves.

[0082] The decorative panel has an inlet through which the first air drawn into the housing flows. The frame is connected to a portion of the decorative panel below the inlet. The decorative panel has a drawer handle that is operated when moving the drawer body below the inlet. The drawer handle of the air conditioner contributes to making the decorative panel less likely to bend in response to operation of the drawer handle, compared to when the drawer handle is provided above the inlet.

[0083] The air conditioner includes a restricting member that restricts the movement of the drawer body from the stored position toward the drawn-out position. The restricting member of the air conditioner contributes to preventing the drawer body in the stored position from moving toward the drawn-out position at an unintended timing.

[0084] The restricting member comprises an engaging portion arranged on the housing, and an engaged portion arranged on the drawer body and restricts movement of the drawer body when engaged with the engaging portion. The drawer body has a drawer handle that switches the position of the engaged portion between an engaging position where it can engage with the engaging portion, and a non-engaged position where it cannot engage with the engaging portion. The restricting member of the air conditioner has a relatively simple configuration of an engaging portion and an engaged portion, and contributes to restricting the drawer body in the stored position from moving toward the drawer position at an unintended timing.

[0085] The heat exchanger has a first outer wall. The drawer body is equipped with a first opposing wall opposing the first outer wall of the heat exchanger. One of the first outer wall and the first opposing wall has a first rib. The other of the first outer wall and the first opposing wall has a first groove into which the first rib fits. The first rib and the first groove of the air conditioner contribute to facilitating the task of placing the heat exchanger in a predetermined position in the drawer body during maintenance.

[0086] The evaporation filter has a second outer wall. The drawer body is equipped with a second opposing wall that faces the second outer wall of the evaporation filter. One of the second outer wall and the second opposing wall has a second rib. The other of the second outer wall and the second opposing wall has a second groove into which the second rib fits. The second rib and the second groove of the air conditioner make it easy to place the evaporation filter in a predetermined position in the drawer body during maintenance.

[0087] The air conditioner includes a first protrusion and a second protrusion. The first protrusion protrudes downward inside the housing and contacts the top surface of the heat exchanger when the drawer body is in the storage position. The second protrusion protrudes downward beyond the lower end of the first protrusion inside the housing, upstream in the drawer direction in which the drawer body moves from the storage position to the drawer position, and contacts the top surface of the heat exchanger when the drawer body is in the storage position. The first and second protrusions of the air conditioner make it easy to move the drawer body to the drawer position, while contributing to pressing the top surface of the heat exchanger downward with each of the first and second protrusions when moved to the storage position.

[0088] The heat exchanger has a shorter width, perpendicular to the drawer direction and the up-down direction, than the heat exchanger on the downstream side in the drawer direction in which the drawer body moves from the stored position to the drawer position. This contributes to improving the operability of the drawer body compared to a case in which the heat exchanger is longer in the width direction than the downstream side in the drawer direction.

[0089] The heat exchanger has a shorter vertical length upstream in the drawer direction in which the drawer body moves from the stored position to the drawn-out position compared to the downstream.The heat exchanger of the air conditioner contributes to improving the operability of the drawer body upstream in the drawer direction compared to when the heat exchanger has a longer vertical length downstream.

[0090] The heat exchanger has a flange portion that contacts the upper surface of the vaporization filter upstream in the pull-out direction. The flange portion of the air conditioner contributes to suppressing air other than the first air from mixing in the first flow path of the first air between the heat exchanger and the vaporization filter.

[0091] The air conditioner includes, within the housing, a first wall protruding downward and a second wall protruding downward further upstream than the first wall in a drawer direction in which the drawer body moves from the storage position to the drawer position. The heat exchanger has a first abutment portion at an end of an upper surface of the heat exchanger that is downstream in the drawer direction and that protrudes upward and abuts against the first wall when the drawer body is in the storage position, and a second abutment portion at an end of an upper surface of the heat exchanger that is upstream in the drawer direction and that abuts against the second wall when the drawer body is in the storage position. The first wall, second wall, first abutment portion, and second abutment portion of the air conditioner contribute to suppressing mixing of the first air and the second air with a relatively simple configuration.

[0092] The air conditioner is provided with a flow path forming section disposed inside the housing and forming a flow path for the first air that has flowed through the vaporization filter. The vaporization filter has a water receiving rib at its lower end in the up-down direction that protrudes upstream in the pull-out direction from the first drain pan and extends along a width direction perpendicular to the pull-out direction and the up-down direction. The water receiving rib provided at the lower end of the vaporization filter of the air conditioner can guide water discharged from the vaporization filter to the flow path forming section as the first air flows through the vaporization filter to the first drain pan, contributing to reducing water remaining in the housing.

[0093] The air conditioner of the above embodiment includes a housing, a first inlet, a second inlet, a heat exchanger, a vaporization filter, a first outlet, and a second outlet. The first inlet is disposed on a first side wall of the housing, and the first air is taken into the housing. The second inlet is disposed on the first side wall, and the second air is taken into the housing. The heat exchanger has a first heat exchange flow path through which the first air taken in from the first inlet flows, and a second heat exchange flow path through which the second air taken in from the second inlet flows upward and to which water is supplied. The vaporization filter cools the first air by the latent heat of the water. The first outlet blows out the first air taken in from the first inlet and flowing through the first heat exchange flow path and the vaporization filter of the heat exchanger to the outside of the housing. The first outlet is disposed on the housing. The second outlet blows out the second air taken in from the second inlet and flowing upward through the second heat exchange flow path to the outside of the housing. The second air outlet is disposed in a position in the housing that is higher than the outlet of the second heat exchange flow passage of the heat exchanger. In the heat exchanger of the air conditioner, the direction in which the second air flows through the second heat exchange flow passage coincides with the direction in which the second air outlet is disposed relative to the outlet of the second heat exchange flow passage of the heat exchanger. Therefore, the air conditioner can cause the second air to flow upward from the second heat exchange flow passage to the second air outlet, and can reduce the pressure loss of the second air compared to the conventional art. Since the first inlet and the second inlet are disposed in the same first side wall, the configuration inside the housing can be simplified compared to a case in which the first inlet and the second inlet are disposed in different side walls, which contributes to reducing the size of the housing.

[0094] The air conditioner further includes a first pipe disposed directly above the heat exchanger and through which water supplied to the second heat exchange passage flows. Since the direction in which the water supplied to the second heat exchange passage flows is opposite to the direction in which the second air flows, the air conditioner has a higher heat exchange efficiency due to the heat of vaporization of the water flowing through the second heat exchange passage than when the two directions are not opposite to each other.

[0095] The air conditioner includes a second pipe disposed directly above the vaporization filter through which water supplied to the vaporization filter flows, and a pump that sends water to each of the first pipe and the second pipe. In a water supply flow path including the pump, the first pipe, and the second pipe, the pump, the first pipe, and the second pipe are connected in this order from upstream to downstream in the flow direction of water in the water supply flow path. By disposing the first pipe upstream of the second pipe, the water supply flow path of the air conditioner can supply water to the heat exchanger at a higher water pressure than the vaporization filter.

[0096] The second pipe is disposed vertically below the first pipe, so that water can more easily reach the second pipe in the air conditioner than in a case where the second pipe is disposed above the first pipe.

[0097] A first vertical distance between the first pipe and the heat exchanger is larger than a second vertical distance between the second pipe and the vaporization filter. By making the first distance larger than the second distance, the air conditioner can simultaneously suppress leakage of the first air from the vaporization filter and ensure smooth flow of the second air downstream of the second heat exchange passage.

[0098] The housing includes a second side wall opposite the first side wall, a third side wall connected to the first side wall and the second side wall, and a fourth side wall opposite the third side wall. The air conditioner includes a first fan that circulates a first air through a first flow path including a first heat exchange flow path from the first inlet to the first outlet, a fan motor that drives the first fan, a third pipe that is arranged along the third side wall and connected to the first pipe, and a power supply harness that is arranged along the fourth side wall and supplies power to the fan motor. By arranging the third pipe and the power supply harness separately from each other, the possibility of electric leakage and short circuit occurrence can be reduced compared to when the two are arranged together.

[0099] The second heat exchange passage forms a part of the second passage from the second inlet to the second outlet. The air conditioner includes a drain pan that is disposed directly below the heat exchanger, receives water discharged from the second heat exchange passage, and forms a part of the second passage upstream of the second heat exchange passage. The drain pan of the air conditioner can cool the second air before it enters the heat exchanger by the heat of vaporization of the water stored in the drain pan.

[0100] The drain pan has a first receiving portion that abuts against the heat exchanger and receives water discharged from the second heat exchange flow path, a second receiving portion that abuts against the vaporization filter and receives water discharged from the vaporization filter, and a drain wall that separates the first receiving portion from the second receiving portion. In the drain pan of the air conditioner, the second air passing through the drain pan that forms part of the second flow path is less likely to mix with other air than in a case where the drain wall is not provided.

[0101] The first inlet and the second inlet are a common inlet. Since there is no need to configure two different inlets, the housing of the air conditioner can be made smaller than when the first inlet and the second inlet are provided separately.

[0102] The air conditioner includes a first fan that circulates a first air through a first heat exchange flow path, and a second fan that circulates a second air through a second heat exchange flow path and has a smaller output than the first fan. Compared to a conventional air conditioner in which the second air circulates downward from the second heat exchange flow path and then upward to the second air outlet, the air conditioner can reduce pressure loss of the second air, so that the heat exchange rate of the entire air conditioner can be kept high even if the output of the second fan is smaller than that of the first fan.

[0103] The housing includes an upper wall in which the first air outlet and the second air outlet are arranged. The second air outlet is arranged at a position closer to the first side wall than the first air outlet in a direction in which the first air flows through the first heat exchange flow path. Compared to a case in which the second air outlet is arranged at a position farther from the first side wall than the first air outlet, the housing of the air conditioner can simplify the flow path of the first air and the flow path of the second air within the housing, which contributes to making the housing smaller.

[0104] The second air outlet is disposed at a position overlapping with the first air outlet in a direction perpendicular to the direction in which the first air flows through the first heat exchange passage and a vertical direction. This allows the flow paths of the first air and the second air within the housing to be further simplified, contributing to a reduction in the size of the housing.

[0105] The air conditioner includes a first fan that circulates a first air through a first flow path from a first inlet to a first outlet, the first flow path including a first heat exchange flow path, a second fan that circulates a second air through a second flow path from a second inlet to a second outlet, the second flow path including a second heat exchange flow path, and a fan motor that drives the first and second fans. The rotation axis of the fan motor is parallel to the direction in which the first air flows through the first heat exchange flow path. Compared to a case in which the rotation axis of the fan motor intersects the direction in which the first air flows through the first heat exchange flow path, i.e., the front-to-rear direction, the flow path of the first air and the flow path of the second air in the housing can be further simplified, and the housing can be made smaller.

[0106] The first fan is disposed at a position overlapping with the vaporization filter in the direction in which the first air flows through the first heat exchange passage. Compared to a case in which the first fan is disposed at a different position from the vaporization filter in the direction in which the first air flows through the first heat exchange passage, i.e., in the front-rear direction, the first flow passage of the first air in the housing can be made shorter, and the housing can be made smaller.

[0107] The second fan is disposed at a position overlapping with the heat exchanger in the direction in which the first air flows through the first heat exchange passage. Compared to a case in which the second fan is disposed at a different position from the heat exchanger, i.e., shifted position from the heat exchanger in the direction in which the first air flows through the first heat exchange passage, the flow path of the second air within the housing can be shortened and the housing can be made smaller.

[0108] The air conditioner of the above embodiment includes a housing, a first tank, a first tank housing, a second tank, a second tank check valve, a second tank housing, an outlet pipe, and a cooling unit. The first tank stores water. The first tank housing is disposed in the housing and houses the first tank. The second tank is disposed removably relative to the housing and stores water supplied from the first tank. The second tank check valve is disposed in the second tank. The second tank housing is disposed in the housing and houses the second tank. The outlet pipe is disposed in the housing and connected to the second tank via the second tank check valve. The cooling unit is disposed in the housing and cools air taken in from outside the housing by the heat of vaporization of water supplied from the outlet pipe. The second tank of the air conditioner can be removed from the housing, which contributes to improving the ease of maintenance of the second tank compared to conventional devices. The second tank check valve of the air conditioner contributes to suppressing water stored in the second tank from flowing outside the second tank during the process of removing the second tank from the housing.

[0109] The second tank housing includes a lid and a hinge. The hinge rotatably fixes the lid within the housing between a closed position that covers an upper portion of the second tank disposed in the second tank housing and an open position that opens an upper portion of the second tank disposed in the second tank housing. The lid of the air conditioner contributes to preventing water in the second tank from splashing when the second tank is removed from inside the housing.

[0110] The air conditioner includes a drain pan that receives water discharged from the cooling unit, and an inlet pipe. The inlet pipe is a flexible pipe that connects the lid and the drain pan. The inlet pipe of the air conditioner connects the lid and the drain pan, which contributes to eliminating the need for the pipe that supplies water from the drain pan to the second tank to interfere with the second tank when the second tank is attached or detached from the housing, or for the pipe to have to be moved individually to avoid interference.

[0111] The lid has a lid body, and a hollow cylinder having a cylinder inlet to which the inlet pipe is connected, and a cylinder outlet connected to the lid body. When the lid is in the open position, the cylinder outlet is located above the cylinder inlet. When the lid is in the open position, the cylinder outlet of the air conditioner is located above the cylinder inlet, so that when the second tank is attached or detached, the water supplied from the drain pan can be retained between the cylinder inlet and the cylinder outlet, which helps to make it difficult for water to reach the outlet.

[0112] The side wall of the housing has an outlet through which the first tank and the second tank are each removed from the housing. The lid body has a lid protrusion that protrudes upward from the upper surface of the lid body at a portion between the cylinder and the outlet on the upper surface of the lid body when the lid is in the closed position. The lid protrusion of the air conditioner contributes to guiding the first tank when it is moved to the first tank storage section. The lid protrusion of the air conditioner contributes to preventing the first tank from contacting the cylinder when the first tank is attached to the housing.

[0113] The first tank has a water supply port through which water flows to be supplied from inside the first tank to the second tank. The lid body has an insertion hole through which the water supply port passes. The lid body of the air conditioner can relatively simply be configured to supply water from the first tank to the second tank.

[0114] A seal member is provided between the lid and the second tank when the lid is in the closed position. The seal member of the air conditioner can make the space surrounded by the second tank and the lid nearly sealed. The air conditioner contributes to making it difficult for the water stored in the second tank to evaporate and for the water temperature to change.

[0115] The second tank is provided with a second tank handle in an area surrounded by the inner surface of the second tank. The second tank handle of the air conditioner contributes to improving operability when attaching and detaching the second tank from the housing. The second tank handle of the air conditioner contributes to making the second tank more compact than when the second tank handle is disposed outside the area surrounded by the inner surface of the second tank.

[0116] The second tank handle is disposed at the center of the second tank in the longitudinal direction. The second tank handle of the air conditioner contributes to making it easier to balance the second tank when removing it from the housing, compared to when the second tank handle is disposed at an end of the second tank in the longitudinal direction.

[0117] The second tank includes an in-line filter in an area surrounded by the inner surface of the second tank. Even if a foreign object gets into the second tank, the in-line filter of the air conditioner contributes to preventing the foreign object from getting into the piping connected to the second tank.

[0118] The housing has a first side wall having an outlet for removing the first tank from the housing. The second tank housing is disposed closer to the first side wall than to a second side wall opposite the first side wall. The second tank housing of the air conditioner makes it easier to remove the second tank from the housing compared to a case in which the second tank is disposed closer to the second side wall.

[0119] The housing has a first side wall in which an outlet for removing the first tank from the housing is formed. The in-line filter is disposed closer to the first side wall than to a second side wall opposite the first side wall. The in-line filter of the air conditioner contributes to making it easier to replace the in-line filter with the first tank disposed in the first tank housing portion, compared to when the in-line filter is disposed closer to the second side wall.

[0120] An external communication hole that communicates with the external space of the housing is formed in the bottom wall of the second tank housing. The external communication hole of the air conditioner contributes to discharging water unintentionally entering the second tank housing to the outside of the housing of the air conditioner.

[0121] The air conditioner of the present invention is not limited to the above-described embodiment, and various modifications may be made without departing from the scope of the present invention. For example, the following modifications may be made as appropriate.

[0122] The configuration, shape, size, arrangement, and number of each component of the air conditioner may be changed as appropriate. The shape of the housing may be changed as appropriate, such as a cylindrical shape or a polygonal prism shape. The drawer body may be omitted as appropriate, or the configuration may be changed. At least one of the first inlet, the second inlet, the first outlet, and the second outlet formed in the housing may be changed in arrangement, shape, and size. The first inlet and the second inlet may be individually formed in another portion of the first side wall. The first outlet and the second outlet may be formed in a side wall other than the upper wall of the housing. When the first outlet and the second outlet are each formed in the upper wall of the housing, the second outlet may be disposed at a position farther from the first side wall than the first outlet in the direction in which the first air flows through the first heat exchange passage. The second outlet may be disposed at a position not overlapping with the first outlet in a direction perpendicular to the direction in which the first air flows through the first heat exchange passage and the vertical direction. The size, shape, and arrangement of the outlet may be changed as appropriate.

[0123] The air conditioner may not have a rail for guiding the movement of the drawer body. The air conditioner may have one rail, or may have three or more rails. The arrangement of the drawer body relative to the housing may be changed as appropriate, for example, the vertical arrangement of the pair of drawers may be changed, and the lower end of the drawer body may be arranged at the lower end of the housing. The connection position of the frame to the decorative panel may be changed as appropriate. The drawer handle may be formed above, to the left, or to the right of the intake port. The drawer body may not have a beam member, and the configuration, shape, number, and arrangement of the beam member may be changed as appropriate. The drawer body may be box-shaped. The restricting member may be omitted as necessary, or the size, configuration, arrangement, number, etc. may be changed. The air conditioner may have, as the restricting member, a magnet provided on the decorative panel and a magnetic body provided at the drawer opening. In this case, when the drawer body is in the storage position, the magnetic force between the magnet and the magnetic body restricts the drawer body from moving in the drawer direction. The restricting member does not have to be connected to the drawer handle, and may, for example, be composed of a hook provided on the decorative panel and a hole provided in the first side wall, and the hook engages with the hole when the drawer body is in the storage position to restrict the movement of the drawer body in the pull-out direction. When the restricting member is composed of an engaging portion and an engaged portion, the arrangement, configuration, number, etc. of the engaging portion and the engaged portion may be appropriately changed, and the engaged portion may be provided on the housing.

[0124] The configuration of the cooling unit may be changed as appropriate. The cooling unit may include only one of the heat exchanger and the vaporization filter. The configuration of the heat exchanger may be changed as appropriate. The heat exchanger may not include a heat exchange case and may include only a heat exchanger body. The partition wall of the heat exchanger may be formed of a plurality of sheets and a plurality of spacers, may be formed of only a plurality of sheets, or may be formed by arranging a plurality of cylindrical bodies. In the heat exchanger, a first direction from the inlet to the outlet of the first heat exchange flow passage and a second direction from the inlet to the outlet of the second heat exchange flow passage may be perpendicular to each other, may cross each other, or may be parallel. The heat exchanger may not have a first outer wall. A first rib may be formed on the first outer wall, and a first groove into which the first rib fits may be formed on the first opposing wall. One of the first rib and the first groove may not be formed on the first outer wall. The shape, size, and arrangement of the first rib and the first groove may be changed as appropriate. The shape of the heat exchanger may be changed as appropriate. The heat exchanger may have a longer widthwise length perpendicular to the pull-out direction and the up-down direction, as compared to the downstream side, in the pull-out direction in which the pull-out body moves from the storage position to the pull-out position. The heat exchanger may have a longer up-down length upstream in the pull-out direction in which the pull-out body moves from the storage position to the pull-out position, as compared to the downstream side. At least one of the flange, the first contact portion, and the second contact portion may be omitted from the heat exchanger, and the arrangement, configuration, number, etc. may be appropriately changed. When the heat exchanger does not have a flange, the evaporation filter may have a flange that contacts the upper surface of the heat exchanger.

[0125] The air conditioner may not include the first protrusion and the second protrusion, or may include only the first protrusion and the second protrusion. The shape and arrangement of the first protrusion and the second protrusion may be changed as appropriate. The first protrusion and the second protrusion may abut against the upper surface of the vaporization filter. The first protrusion and the second protrusion are formed integrally, but may be formed separately.

[0126] The air conditioner may omit at least one of the air filters, or the configuration and arrangement of the air filter may be changed. The air filter may not be mounted on the drawer body. The configuration of the vaporization filter may be changed as appropriate. The vaporization filter may not be mounted on the drawer body, but may be disposed inside the housing. The vaporization filter may be mounted on a drawer body other than the drawer body on which the heat exchanger is mounted. The arrangement of the vaporization filter when mounted on the drawer body may be changed as appropriate, for example, the drawer body may be disposed downstream in the drawing direction from the heat exchanger. In that case, the intake port may be formed on the decorative plate, may be formed on any of the first to fourth side walls of the housing, or may be formed on the upper or lower wall of the housing. The vaporization filter may not have a water receiving rib. The vaporization filter may not have a second outer wall. A second rib may be formed on the second outer wall, and a second groove into which the second rib fits may be formed on the second opposing wall. Neither the second rib nor the second groove may be formed on the second outer wall. The shape, size and arrangement of the second rib and the second groove may be changed as appropriate.

[0127] The drain pan may be omitted, and the configuration of the drain pan may be appropriately changed. The drain pan may include only one of the first drain pan and the second drain pan. The size, shape, and arrangement of each of the first drain pan and the second drain pan may be appropriately changed. The first drain pan may not be provided in the drawer body. When the first drain pan is provided in the drawer, the first drain pan may not be fixed to the frame, and may be fixed to the decorative plate. The first drain pan may have the function of the frame and may engage with the rail. The first drain pan may omit the drain piping, and the shape, size, and arrangement of the drain piping may be appropriately changed. The drain piping may be connected to the bottom wall of the first drain pan, may be a flexible piping, or may be a contracting piping. The drain piping may be directly connected to the cylindrical body of the second tank. The first drain pan may not have the second receiving portion and the drain wall, and may only receive water discharged from the second heat exchange flow path of the heat exchanger. The drain wall may abut against the rear lower end of the heat exchanger without abutting against the evaporation filter. The drain wall may not have a communication hole. The first receiving portion and the second receiving portion may be connected to separate drain pipes. The first drain pan may not have at least one of the first support portion and the second support portion, and for example, at least one of the heat exchanger and the evaporation filter may be supported by the frame of the drawer body. The first drain pan may not function as at least one of the first opposing wall and the second opposing wall. At least one of the first opposing wall and the second opposing wall may be formed separately from the first drain pan. At least one of the first opposing wall and the second opposing wall may be a flange connected to a decorative plate, or a frame.

[0128] The configuration of the water storage container may be changed as appropriate. The water storage container may include only either the first tank or the second tank, and the size, shape, number, and arrangement of each tank may be changed as appropriate. The second tank may be non-removable from the housing. In that case, the second tank does not need to include a second tank check valve. A plurality of second tanks may be provided according to the number of first tanks. The second tank may omit at least one of the in-line filter and the second tank handle, and the configuration, arrangement, and number of the in-line filter and the second tank handle may be changed as appropriate. The second tank handle may be disposed at one end of the second tank in the longitudinal direction. The in-line filter may be disposed near the second side wall opposite the first side wall. The second tank may be provided with a second tank handle outside the area surrounded by the inner surface. External communication hole

[0129] The configuration of the water supply unit may be changed as appropriate. The air conditioner may not have the pump and the first to fourth pipes, and may suck up water using a highly absorbent water-replenishment cloth such as a nonwoven fabric, and supply it to the cooling unit. The arrangement of the first pipe, the second pipe, and the third pipe may be changed as appropriate. The arrangement of the pump, the first pipe, and the second pipe in the water supply flow path in the direction of flow of water may be changed as appropriate. The pump, the second pipe, and the first pipe may be connected in this order from upstream to downstream. The vertical position of the second pipe may be the same as the vertical position of the first pipe, or the second pipe may be arranged vertically above the first pipe. The first vertical distance between the first pipe and the heat exchanger may be equal to or smaller than the second vertical distance between the second pipe and the evaporation filter. The arrangement of the third pipe may be changed as appropriate, and may be arranged in close proximity to the power supply harness, for example. A pipe for supplying water to the first pipe and a pipe for supplying water to the second pipe may be provided separately. The inlet pipe may be omitted as appropriate, or the configuration may be changed. The inlet pipe may be a pipe having contractibility.

[0130] The first fan, the second fan, and the fan motor may be omitted, or the configuration, arrangement, and size may be changed as appropriate. The output of the second fan may be equal to or greater than the output of the first fan. The fan motor may be provided in the first flow path, or may be provided outside the housing. In the direction in which the first air flows through the first heat exchange flow path, the first fan may be disposed at a position not overlapping with the evaporation filter. In the direction in which the first air flows through the first heat exchange flow path, the second fan may be disposed at a position not overlapping with the heat exchanger.

[0131] The configuration and arrangement of the second tank housing may be appropriately changed. The second tank housing may be disposed near a second side wall opposite to the first side wall. The configuration of the lid of the second tank housing of the air conditioner may be appropriately changed. The second tank housing may not be provided with a seal member. The lid may not include at least one of a lid body protrusion and a cylinder body, and an insertion hole may not be formed. The configuration of the cylinder body may be appropriately changed, and the cylinder body outlet may be located lower than the cylinder body inlet when the cylinder body is in the open position. The second tank housing may not include a lid and a hinge. The second drain pan may not be connected to the inlet pipe. An external communication hole may not be formed in the bottom wall of the second tank housing, and the number, arrangement, shape, etc. of the external communication holes may be appropriately changed. In addition, the bottom wall of the second tank housing may constitute a part of the lower wall of the housing, and the external communication hole may directly communicate with the external space of the housing. In addition, the external communication hole may communicate with the external space via a hole provided in the lower end of the side wall of the housing.

[0132] With reference to FIG. 19, a second tank housing section 239 of a modified example not including a lid and a hinge, and a second drain pan 181 not connected to the inlet pipe 17 will be described. In FIG. 19, the same reference numerals are given to configurations similar to those of the air conditioner 1 of the above embodiment. The second tank housing section 239 of the modified example shown in FIG. 19 has the same configuration as the second tank housing section of the above embodiment, except that it does not include a lid and a hinge. The lower end of the second drain pan 181 of the air conditioner 1 of the modified example is located near the center in the front-rear direction and is connected to the bent pipe 182. The bent pipe 182 is an L-shaped pipe and is connected to the second drain pan 181 so as to be rotatable around an axis extending in the up-down direction. When the first tank 201 is housed in the housing 2, the user of the air conditioner 1 takes a posture in which the lower end of the bent pipe 182 faces forward. At this time, since the lower end of the bent pipe 182 is located forward of the rear end of the second tank 202, the water flowing from the second drain pan 181 flows through the bent pipe 182 and then into the second tank 202. When removing the second tank 202 after the first tank 201 has been removed from the housing 2, the user of the air conditioner 1 takes a position in which the lower end of the bent pipe 182 faces right or left. At this time, since the lower end of the bent pipe 182 is located rearward of the rear end of the second tank 202, the user can easily remove the second tank 202 from the housing 2. The above modifications may be combined as appropriate within a range where no contradictions exist. [Explanation of symbols]

[0133] 1: air conditioner, 2: housing, 3: cooling unit, 4: heat exchanger, 6: evaporation filter, 7: drawer body, 8: drain pan, 9: pump, 10: lid, 15: hinge, 16: sealing member, 17: inlet pipe, 18: second tank check valve, 19: outlet pipe, 21: first side wall, 22: second side wall, 23: third side wall, 24: fourth side wall, 29: first air outlet, 30: second air outlet, 33: first protrusion, 34: second protrusion, 35: first wall, 36: second wall, 37: second wall, 38: first wall, 39: second wall, 40: second wall, 41: first side wall, 42: second side wall, 43: first side wall, 44: second side wall, 45: second wall, 46: first wall, 47: second wall, 48: second wall, 49: first wall, 50: second wall, 51: second wall, 52: first wall, 53: second wall, 54: first wall, 55: second wall, 56: second wall, 57: first wall, 58: second wall, 59: second wall, 60: first wall, 61: second wall, 62: second wall, 63: first wall, 64: second wall, 65: second wall, 66: second wall, 67: first wall, 68: second wall, 69: second wall, 70: first wall, 71: second wall, 72: second wall, 73: first wall, 74: second wall, 75: second wall, 76: second wall, 77: first wall, 78: second wall, 79: second wall, 80: first wall, 81: second wall, 82: second wall, 83: first wall, 84: second wall, 7: flow path forming portion, 39: second tank housing portion, 48: upper surface, 49: flange portion, 51: first abutment portion, 52: second abutment portion, 54: first outer wall, 55: first groove, 59: upper surface, 60: air filter, 65: second outer wall, 66: second groove, 70: drawer handle, 71: frame, frame, 73: decorative plate, 74: first inlet, second inlet, inlet, 76, 77: beam member, 78: regulating member, 79, 80: engaged portion, 81: first drain pan, 82: second drain pan , 83: first receiving portion, 84: second receiving portion, 85: drain wall, 86: communication hole, 87: drain hole, 90: drain pipe, 91, 92: rail, 93, 94: engagement portion, 96: first pipe, 97: second pipe, 98: third pipe, 101: first fan, 102: second fan, 103: fan motor, 104: rotating shaft, 110: cover body, 111: cylinder, 140: first tank storage portion, 200: outer circumferential surface, 201, 211, 221: first tank, 202: second tank, 2 04: second tank handle, 391 to 397: external communication holes, 803: first opposing wall, second opposing wall, 808, 809: first support portion, 808 to 809: second support portion, 851, 852: first rib, 853, 854: second rib, 104: rotation axis, D: pull-out direction, D1: first interval, P1: first flow path, P2: second flow path, P3: water supply flow path, Q1: pull-out position, Q2: storage position, R: area, R1: first heat exchange flow path, R2: second heat exchange flow path, W: width direction

Claims

1. A housing and A first intake port is disposed on a first side wall of the housing and configured to take in a first air into the housing; a second intake port disposed in the first side wall and configured to take in a second air into the housing; a first heat exchange flow path through which the first air taken in from the first inlet flows; a second heat exchange flow path through which the second air taken in from the second inlet flows upward and to which water is supplied; a heat exchanger in which an evaporative filter that cools the first air by using latent heat of water; a first air outlet disposed in the housing, through which the first air is taken in from the first inlet and flows through the first heat exchange flow path of the heat exchanger and the vaporization filter, and the first air is blown out of the housing; a second outlet through which the second air taken in from the second inlet and flowing in the upward direction through the second heat exchange passage is blown out of the housing, the second air being disposed in a position in the housing that is higher than an outlet of the second heat exchange passage of the heat exchanger; An air conditioner comprising:

2. 2. The air conditioner according to claim 1, further comprising a first pipe disposed immediately above the heat exchanger and through which water supplied to the second heat exchange passage flows.

3. a second pipe disposed immediately above the vaporization filter and through which water supplied to the vaporization filter flows; a pump for supplying water to each of the first pipe and the second pipe; Equipped with The air conditioner according to claim 2, characterized in that in a water supply flow path including the pump, the first pipe, and the second pipe, the pump, the first pipe, and the second pipe are connected in that order from upstream to downstream in the direction of water flow in the water supply flow path.

4. The air conditioner according to claim 3 , wherein the second pipe is disposed vertically below the first pipe.

5. 4. The air conditioner according to claim 3, wherein a first vertical distance between the first pipe and the heat exchanger is larger than a second vertical distance between the second pipe and the evaporation filter.

6. the housing includes a second side wall opposite the first side wall, a third side wall connected to the first side wall and the second side wall, and a fourth side wall opposite the third side wall; a first fan that circulates the first air through a first flow path including the first heat exchange flow path from the first inlet to the first outlet; a fan motor that drives the first fan; a third pipe disposed along the third side wall and connected to the first pipe; a power supply harness arranged along the fourth side wall and supplying power to the fan motor; The air conditioner according to claim 3, further comprising:

7. The second heat exchange passage forms a part of a second passage from the second inlet to the second outlet, 2. The air conditioner according to claim 1, further comprising a drain pan disposed immediately below the heat exchanger, receiving water discharged from the second heat exchange flow path, and forming a part of the second flow path upstream of the second heat exchange flow path.

8. The drain pan is a first receiving portion that abuts against the heat exchanger and receives the water discharged from the second heat exchange passage; a second receiving portion that contacts the vaporization filter and receives water discharged from the vaporization filter; a drain wall separating the first receiving portion and the second receiving portion; 8. The air conditioner according to claim 7, further comprising:

9. 2. The air conditioner according to claim 1, wherein the first inlet and the second inlet are a common inlet.

10. a first fan that circulates the first air through the first heat exchange passage; a second fan having a smaller output than the first fan, which circulates the second air through the second heat exchange passage; The air conditioner according to claim 1 , further comprising:

11. the housing includes an upper wall in which the first air outlet and the second air outlet are arranged, 4. The air conditioner according to claim 1, wherein the second air outlet is disposed at a position closer to the first side wall than the first air outlet in a direction in which the first air flows through the first heat exchange passage.

12. The air conditioner according to claim 11, wherein the second air outlet is arranged at a position overlapping with the first air outlet in a direction perpendicular to a direction in which the first air flows through the first heat exchange flow path and a vertical direction.

13. a first fan that circulates the first air through a first flow path including the first heat exchange flow path from the first inlet to the first outlet; a second fan that circulates the second air through a second flow passage including the second heat exchange flow passage from the second inlet to the second outlet; a fan motor that drives the first fan and the second fan, 12. The air conditioner according to claim 11, wherein a rotation axis of the fan motor is parallel to a direction in which the first air flows through the first heat exchange passage.

14. The air conditioner according to claim 13 , wherein the first fan is disposed at a position overlapping with the evaporation filter in a direction in which the first air flows through the first heat exchange passage.

15. The air conditioner according to claim 13 , wherein the second fan is disposed at a position overlapping with the heat exchanger in a direction in which the first air flows through the first heat exchange passage.

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