Air conditioner

Abstract

To make drain water hardly enter between a drain pan and a heat insulation material.SOLUTION: An indoor machine 5 comprises a heat exchanger 52, and a drain pan 60. The drain pan 60 comprises a water receiving surface 61U, and water guiding surfaces 64U. The water receiving surface 61U is provided below the heat exchanger 52, and receives drain water generated on a surface of the heat exchanger 52. The water guiding surfaces 64U form discharge paths R1 for connecting discharge ports 63R and 63L for discharging the drain water, the water receiving surface 61U, and the water guiding surfaces 64U, and guiding the drain water from the water receiving surface 61U to the discharge port 63R or the discharge port 63L. The discharge paths R1 include inclined parts 65R and 65L. The inclined parts 65R and 65L are inclined so as to be located downward as approaching the discharge ports 63R and 63L, and provided with the discharge ports 63R and 63L in end parts on a rear side respectively. The water receiving surface 61U and the water guiding surfaces 64U are covered by a heat insulation material 70 so as not to be exposed when viewed from above.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present disclosure relates to an air conditioner. [Background technology]

[0002] The drain pan for an indoor unit of an air conditioner disclosed in Patent Document 1 includes a heat insulating member for the drain pan that is arranged along the inner wall of the drain pan body. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2006-300431 Summary of the Invention [Problem to be solved by the invention]

[0004] When the inner wall of the drain pan body is covered with insulation, as in the indoor unit drain pan of Patent Document 1, if condensation water flows into the joint between the edge of the insulation and the drain pan body, the condensation water may get in and accumulate between the drain pan and the insulation. The condensation water accumulated between the drain pan and the insulation cools the outer surface of the drain pan, which can cause condensation on the drain pan itself.

[0005] The present disclosure has been made in view of the above-mentioned problems, and has an object to provide an air conditioner that can suppress condensation in the drain pan. [Means for solving the problem]

[0006] The air conditioner according to the present disclosure includes a heat exchanger and a drain pan. The drain pan has a water receiving surface and a water conducting surface. The water receiving surface is provided below the heat exchanger in the vertical direction, facing the lower part of the heat exchanger and receiving drain water generated on the surface of the heat exchanger. The water conducting surface forms an outlet for discharging the drain water, and a discharge path that connects the water receiving surface and the discharge outlet and conducts the thermal drain water from the water receiving surface to the discharge outlet. The discharge path includes an inclined portion. The inclined portion is inclined downward in the vertical direction as it approaches the discharge outlet, and the discharge outlet is provided at the rear end. The water receiving surface and the water conducting surface that forms the discharge path from the water receiving surface to at least a portion of the inclined portion are covered with a heat insulating material so as not to be exposed when viewed from above. [Effects of the Invention]

[0007] According to the present disclosure, drain water is less likely to enter between the drain pan and the insulation material. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. [Figure 2] FIG. 2 is a cross-sectional view of the side of the indoor unit. [Figure 3] FIG. 10 is a perspective view of the drain pan and the heat insulating material as seen from the diagonal front right. [Figure 4] FIG. 10 is a perspective view of the drain pan and the heat insulating material as seen diagonally from the front left. [Figure 5] FIG. 2 is an exploded perspective view of the drain pan and the heat insulating material as seen from the front right. [Figure 6] FIG. 2 is an exploded perspective view of the drain pan and the heat insulating material as seen from the left front. [Figure 7] FIG. 10 is a top view of the drain pan in which the heat insulating material is disposed. [Figure 8] FIG. 2 is a top view of only the drain pan. [Figure 9] 9 shows a cross section taken along line IX-IX in FIG. 8. [Figure 10] 8. The cross section taken along line XX in FIG. [Figure 11] FIG. 2 is a bottom view showing the bottom surface of the heat insulating material. [Figure 12] 12 shows a cross section taken along line XII-XII in FIG. 8. [Figure 13] 13 shows a cross section taken along line XIII-XIII in FIG. 8. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. In the drawings, the same or corresponding parts are designated by the same reference characters and description thereof will not be repeated.

[0010] The configuration of an indoor unit 5 of an air conditioner according to an embodiment of the present disclosure will be described with reference to Figures 1 and 2. Figure 1 is a perspective view showing the indoor unit 5. Figure 2 is a cross-sectional view of the side of the indoor unit 5. In this embodiment, the figure shows an X-axis, a Y-axis, and a Z-axis that are orthogonal to one another. The X-axis is a direction perpendicular to the back surface 50B of the indoor unit 5. The Y-axis is the longitudinal direction of the main body 50 of the indoor unit 5, and is orthogonal to the X-axis. The Z-axis is a direction orthogonal to the X-axis and Y-axis. Hereinafter, the X-axis will also be referred to as the front-to-rear direction or vertical direction, the Y-axis as the horizontal direction or left-to-right direction, and the Z-axis as the up-down direction or vertical direction.

[0011] The indoor unit 5 includes a main body 50, a rear surface 50B, a heat exchanger 52, an air intake 53, an air outlet 54, a fan 55, a drain pan 60, and a heat insulator 70. The main body 50 includes an upper surface 50U, a lower surface 50D, a front surface 50F, a rear surface 50B, a right side surface 50R, and a left side surface 50L. The main body 50 houses the heat exchanger 52, the fan 55, a filter 51, the drain pan 60, and the heat insulator 70. The main body 50 includes the air intake 53 and the air outlet 54. The main body 50 is attached to an indoor wall so that the rear surface 50B is in contact with the indoor wall. The lateral length of the main body 50 is longer than the vertical and front-to-rear lengths. Furthermore, the vertical length of the front surface 50F of the main body 50 is shorter than the vertical length of the rear surface 50B.

[0012] Air intake 53 is formed on upper surface 50U. Air outlet 54 is formed on lower surface 50D. In this embodiment, air outlet 54 has air direction plate 541 (horizontal louvers) and left and right air direction plates (vertical louvers) not shown. The vertical louvers are provided at the back of air outlet 54. The horizontal louvers and vertical louvers adjust the blowing direction of air blown out from air outlet 54 to the outside.

[0013] A flow passage G is formed inside the main body 50, extending from the intake port 53 to the outlet port 54. The heat exchanger 52 is disposed in the flow passage G.

[0014] Air is circulated through the flow passage G by a fan 55. Specifically, when the indoor unit 5 is operating, the fan 55 draws air from the outside into the flow passage G through the air intake 53, and blows the air out of the flow passage G to the outside through the air outlet 54. The fan 55 is, for example, a cross-flow fan. The cross-flow fan is, for example, a substantially cylindrical impeller.

[0015] A refrigerant flows inside the heat exchanger 52. When air passes through the heat exchanger 52, heat is exchanged between the refrigerant flowing inside the heat exchanger 52 and the air passing through the heat exchanger 52. When a low-temperature refrigerant flows inside the heat exchanger 52, the air passing through the heat exchanger 52 is cooled, and drain water (condensed water) formed by condensation of moisture in the air may adhere to the surface of the heat exchanger 52.

[0016] Filter 51 covers air intake 53 and collects dust in the indoor air. Specifically, filter 51 collects dust from the air passing through air intake 53.

[0017] The drain pan 60 is provided below the heat exchanger 52 and faces the lower part of the heat exchanger 52. Drain water adhering to the surface of the heat exchanger 52 falls into the drain pan 60. In this way, the drain pan 60 receives the drain water generated on the surface of the heat exchanger 52.

[0018] Next, the drain pan 60 and the heat insulating material 70 will be described with reference to Fig. 3 to Fig. 8. Fig. 3 is a perspective view of the drain pan 60 and the heat insulating material 70 as seen from the diagonal front right. Fig. 4 is a perspective view of the drain pan 60 and the heat insulating material 70 as seen from the diagonal front left. Fig. 5 is an exploded perspective view of the drain pan 60 and the heat insulating material 70 as seen from the diagonal front right. Fig. 6 is an exploded perspective view of the drain pan 60 and the heat insulating material 70 as seen from the diagonal front left. Fig. 7 is a top view of the drain pan 60 with the heat insulating material 70 arranged therein as seen from above. Fig. 8 is a top view of only the drain pan 60 as seen from above.

[0019] The drain pan 60 has a storage section 61 that stores drain water, and a pair of drainage sections 62R, 62L that discharge the drain water from the storage section 61 to the outside of the drain pan 60. The storage section 61 extends along the left-right direction of the main body 50 and has a shape that extends in the front-rear direction while curving downward in a convex shape. The pair of drainage sections 62R, 62L are provided on the right and left sides of the storage section 61, respectively.

[0020] A heat insulating material 70 is disposed in the drain pan 60. Specifically, the heat insulating material 70 is disposed above the storage section 61, a portion of the drainage section 62R, and a portion of the drainage section 62L in the drain pan 60. Therefore, the storage section 61 receives drain water via the heat insulating material 70. The heat insulating material 70 is formed of, for example, polystyrene foam or urethane.

[0021] The accommodation section 61 faces upward and includes a water receiving surface 61U that receives drain water via the heat insulating material 70. The water receiving surface 61U faces the lower part of the heat exchanger 52 via the heat insulating material 70. Typically, the lateral width of the water receiving surface 61U is the same as the lateral width of the heat exchanger 52.

[0022] The drainage section 62R includes an outlet 63R through which drain water is discharged and a connection portion 64R that connects the outlet 63R and the storage section 61. The outlet 63R is located rearward of the storage section 61 and opens toward the rear. The connection portion 64R has an L-shape that connects the right end of the storage section 61 to the outlet 63R. A portion of the connection portion 64R is formed by a right side wall 60R of the drain pan 60, a right wall 66R that is located to the left of the right side wall 60R and faces the right side wall 60R, and a bottom portion 67R that connects the right side wall 60R and the right wall 66R.

[0023] The drainage section 62L includes an outlet 63L through which drain water is discharged, and a connection section 64L that connects the outlet 63L and the storage section 61. The outlet 63L is located rearward of the storage section 61 and opens toward the rear. The connection section 64L has an L-shape that connects the left end of the storage section 61 to the outlet 63L. A portion of the connection section 64L is formed by a left side wall 60L of the drain pan 60, a left wall 66L that is located to the right of the left side wall 60L and faces the left side wall 60L, and a bottom section 67L that connects the left side wall 60L and the left wall 66L.

[0024] The bottom portion 67R of the connecting portion 64R and the bottom portion 67L of the connecting portion 64L each face upward and include a water conveying surface 64U that connects the water receiving surface 61U to the outlet 63R or the outlet 63L. The water conveying surface 64U forms a discharge path R1 that guides drain water accumulated in the storage portion 61 from the water receiving surface 61U to the outlet 63R or the outlet 63L. The water conveying surface 64U of the bottom portion 67R has an L-shape that connects from the right end of the water receiving surface 61U to the outlet 63R. In other words, the discharge path R1 of the bottom portion 67R extends from the right end of the water receiving surface 61U to the right side, curves rearward, and extends rearward to the outlet 63R. The water conveying surface 64U of the bottom portion 67L has an L-shape that connects from the right end of the water receiving surface 61U to the outlet 63L. That is, the discharge path R1 of the bottom portion 67L extends leftward from the left end of the water receiving surface 61U, curves rearward, and extends rearward to the discharge port 63L.

[0025] Next, the discharge path R1 will be described with reference to Fig. 7 to Fig. 10. Fig. 9 shows a cross section taken along line IX-IX in Fig. 8. Fig. 10 shows a cross section taken along line XX in Fig. 8.

[0026] 9, the discharge path R1 of the connection portion 64R includes an inclined portion 65R that slopes downward toward the rear side. In other words, the connection portion 64R is provided with an inclined portion 65R that slopes downward in the up-down direction as it approaches the discharge outlet 63R. The discharge outlet 63R is provided at the rear end of the inclined portion 65R.

[0027] 10, the discharge path R1 of the connection portion 64L includes an inclined portion 65L that slopes downward toward the rear side. In other words, the connection portion 64L is provided with the inclined portion 65L that slopes downward in the up-down direction as it approaches the discharge outlet 63L. The discharge outlet 63L is provided at the rear end of the inclined portion 65L.

[0028] Furthermore, the heat insulating material 70 covers the water receiving surface 61U and a portion of the discharge path R1. Specifically, the heat insulating material 70 covers the water receiving surface 61U, a portion of the front side of the inclined portion 65L of the water conveying surface 64U, and a portion of the front side of the inclined portion 65R of the water conveying surface 64U. In other words, the water receiving surface 61U and a portion of the water conveying surface 64U are covered with the heat insulating material 70 so that they are not exposed when viewed from above.

[0029] Covering the water receiving surface 61U and a portion of the water conveying surface 64U with the insulating material 70 reduces the likelihood of drain water coming into direct contact with the water receiving surface 61U and a portion of the water conveying surface 64U. Furthermore, because the discharge path R1 is inclined downward toward the rear, the drain water is more likely to flow toward the discharge outlet 63R or the discharge outlet 63L, which is located lower than the water receiving surface 61U. Therefore, even if the inclined portions 65R, 65L of the discharge path R1 are covered with the insulating material 70 up to a certain point, the drain water is more likely to flow toward the discharge outlet 63R or the discharge outlet 63L than toward the space between the drain pan 60 and the insulating material 70. As a result, the drain water is less likely to enter the space between the drain pan 60 and the insulating material 70. Even if drain water does enter the space between the water conveying surface 64U and the insulating material 70, the drain water is less likely to reach the water receiving surface 61U, which is located higher. Therefore, the drain water that has entered between the water guide surface 64U and the heat insulating material 70 further cools the outside of the drain pan 60, reducing the possibility of condensation on the outside of the drain pan 60.

[0030] Specifically, the heat insulating material 70 includes an upper surface 70U facing upward and a lower surface 70D (FIG. 11) facing the opposite side from the upper surface 70U. The lower surface 70D (FIG. 11) has a shape that conforms to the water receiving surface 61U and a portion of the water conducting surface 64U. The upper surface 70U receives drain water from the heat exchanger 52. In addition, a discharge path R2 is formed on the upper surface 70U to guide the drain water to the rear side of the inclined portion 65R or the rear side of the inclined portion 65L. In other words, the discharge path R2 is formed along and above the discharge path R1.

[0031] Next, the heat insulating material 70 will be described with reference to Figures 8 to 11. Figure 11 is a bottom view showing the bottom surface 70D of the heat insulating material 70.

[0032] As shown in Figure 11, the lower surface 70D includes a first opposing surface 71 that faces the lower surface of the storage section 61 opposite the water receiving surface 61U, and second opposing surfaces 72R and 72L that face a portion of the water guide surface 64U of the connecting section 64R and a portion of the water guide surface 64U of the connecting section 64L, respectively.

[0033] The second opposing surface 72R is bonded to the water guide surface 64U of the connecting portion 64R via a water-insoluble adhesive M. The second opposing surface 72L is bonded to the water guide surface 64U of the connecting portion 64L via a water-insoluble adhesive M. The water-insoluble adhesive M is, for example, a silicone sealant.

[0034] When the adhesive M between the water guide surface 64U of the connecting portion 64R and the second opposing surface 72R hardens, even if drain water enters the area between the water guide surface 64U and the second opposing surface 72R behind the adhesive M, the drain water is less likely to move beyond the adhesive M and forward of the adhesive M. This makes it even more difficult for the drain water to infiltrate into the water receiving surface 61U side.

[0035] The second opposing surfaces 72R, 72L and the water guide surface 64U may be bonded with a material other than the water-insoluble adhesive M.

[0036] Next, the adhesion between the drain pan 60 and the heat insulating material 70 will be described with reference to Fig. 7 to Fig. 13. Fig. 12 shows a cross section taken along line XII-XII in Fig. 8. Fig. 13 shows a cross section taken along line XIII-XIII in Fig. 8.

[0037] As shown in Figures 9 and 12, a first space 81R is formed between the water guide surface 64U of the connecting portion 64R and the second opposing surface 72R. The first space 81R extends perpendicular to the extension direction of the discharge path R1, which is the direction in which the drain water flows. Typically, the first space 81R extends in a horizontal direction perpendicular to the extension direction of the discharge path R1. In other words, the first space 81R has a shape elongated in the horizontal direction. An adhesive M is filled in the first space 81R.

[0038] As shown in Figures 10 and 13, a first space 81L is formed between the water guide surface 64U of the connecting portion 64L and the second opposing surface 72L. The first space 81L extends perpendicular to the extension direction of the discharge path R1, which is the direction in which the drain water flows. Typically, the first space 81L extends in a horizontal direction perpendicular to the front-to-rear direction in which the discharge path R1 extends. In other words, the first space 81L has a shape elongated in the horizontal direction. An adhesive M is filled in the first space 81L.

[0039] By providing the first space 81R and the first space 81L, the adhesive M is more likely to be concentratedly filled in the first space 81R and the first space 81L. As a result, the adhesive M is more likely to condense in the first space 81R and the first space 81L, and the drain water is less likely to overflow the adhesive M.

[0040] Specifically, as shown in Figures 7, 9, and 12, the drain pan 60 has a recess 68 recessed downward from the water guide surface 64U of the connecting portion 64R. The recess 68 extends leftward from the right side wall 60R. The first space 81R is formed between the recess 68 and the second opposing surface 72R. The first space 81R is provided across the entire width of the discharge path R1 in the lateral direction. In other words, the first space 81R extends from one lateral end to the other lateral end of the water guide surface 64U of the connecting portion 64R.

[0041] 6, 11, and 13, the heat insulating material 70 has a groove 73 extending along its left end face and its lower surface 70D. The groove 73 is recessed to the right from the left end face of the heat insulating material 70 and recessed upward from the lower surface 70D. A first space 81L is formed between the groove 73 and the water guide surface 64U of the connecting portion 64L. The first space 81L is provided across the entire width of the discharge path R1 in the horizontal direction. In other words, the first space 81L extends from one end to the other end of the water guide surface 64U of the connecting portion 64L in the horizontal direction.

[0042] By providing the first space 81R and the first space 81L across the entire width of the discharge path R1, the adhesive M can be filled across the entire width of the discharge path R1.

[0043] 9, 11, and 12, the heat insulating material 70 has an injection port 91R that communicates with the first space 81R. For example, the injection port 91R is a through-hole that passes through the heat insulating material 70 in the vertical direction. The injection port 91R is located above the recess 68.

[0044] 10, 11, and 13, the heat insulating material 70 has an injection port 91L that communicates with the first space 81L. The injection port 91L is a through-hole that passes through the heat insulating material 70 in the vertical direction and communicates with the groove 73. The injection port 91L is located above the groove 73.

[0045] The adhesive M can be filled into the first space 81R or the first space 81L through the inlet 91R or the inlet 91L. Therefore, even after the heat insulating material 70 is attached to the drain pan 60, the adhesive M can be filled into the first space 81R or the first space 81L from the upper surface 70U side of the heat insulating material 70.

[0046] As shown in FIGS. 7 and 12 , the drain pan 60 further includes a partition wall 69R separating the water receiving surface 61U from the water guide surface 64U of the connecting portion 64R. The partition wall 69R extends linearly forward from the right wall 66R. Typically, the first space 81R is provided between the right wall 60R and the partition wall 69R. Specifically, the left-facing surface of the right wall 60R is one end of the first space 81R, and the right-facing surface of the partition wall 69R is the other end of the first space 81R. The inlet 91R is located between the right wall 60R and the partition wall 69R. In other words, the inlet 91R is provided between one end and the other end of the first space 81R. In this embodiment, the right wall 60R is an example of a first wall extending upward in the vertical direction from one side of the water guide surface 64U. The partition wall 69R is an example of a second wall that extends upward in the up-down direction from the other side of the water guide surface 64U.

[0047] As shown in FIGS. 7 and 13 , the drain pan 60 further includes a partition wall 69L separating the water receiving surface 61U from the water guide surface 64U of the connecting portion 64L. The partition wall 69L extends linearly forward from the left wall 66L. Typically, the first space 81L is provided between the left side wall 60L and the partition wall 69L. Specifically, the right-facing surface of the left side wall 60L is one end of the first space 81L, and the left-facing surface of the partition wall 69L is the other end of the first space 81L. The inlet 91L is located between the left side wall 60L and the partition wall 69L. In other words, the inlet 91L is provided between one end and the other end of the first space 81L. In this embodiment, the left side wall 60L is an example of a first wall extending upward in the vertical direction from one side of the water guide surface 64U. The partition wall 69L is an example of a second wall that extends upward in the up-down direction from the other side of the water guide surface 64U.

[0048] By providing the injection port 91R between one end and the other end of the first space 81R, the adhesive M filled from the injection port 91R tends to spread to both the right and left sides of the injection port 91R in the first space 81R. On the other hand, by providing the injection port 91L between one end and the other end of the first space 81L, the adhesive M filled from the injection port 91L tends to spread to both the right and left sides of the injection port 91L in the first space 81L. Therefore, the adhesive M tends to spread evenly throughout each of the first space 81R and the first space 81L.

[0049] 9, 11, and 12, the heat insulating material 70 has, in addition to the injection port 91R, a second space 82R connected to the first space 81R, and a first outlet 92R connected to the first space 81R via the second space 82R. By providing the first outlet 92R connected to the first space 81R in addition to the injection port 91R, the adhesive M filled into the first space 81R from the injection port 91R can be more easily discharged from the first outlet 92R.

[0050] For example, the second space 82R is formed between the right end surface 74 of the thermal insulator 70 and the surface of the right side wall 60R facing left. Specifically, a groove 75 extending in the vertical direction and recessed toward the left is provided in the right end surface 74 of the thermal insulator 70. The second space 82R is formed between the groove 75 and the surface of the right side wall 60R facing left. A first exhaust port 92R is provided at an upper end of the second space 82R. A lower end of the second space 82R is connected to one end of the first space 81R.

[0051] Therefore, the adhesive M filled into the first space 81R from the inlet 91R is easily discharged from the first outlet 92R via the second space 82R, making it easier to efficiently spread the adhesive M to one side (the right side) of the first space 81R and the second space 82R. As a result, the right end surface 74 of the thermal insulating material 70 and the surface facing left of the right wall 60R are bonded via the adhesive M, making it difficult for drain water to infiltrate forward from between the right end surface 74 of the thermal insulating material 70 and the surface facing left of the right wall 60R. Furthermore, through the first outlet 92R, it is possible to visually check whether the adhesive M has reached one side of the first space 81R, making it easier to adjust the amount of adhesive M filled into the first space 81R.

[0052] In addition to the inlet 91R and the first outlet 92R, the heat insulating material 70 also has a third space 83R connected to the first space 81R and a second outlet 93R connected to the first space 81R via the third space 83R. For example, the third space 83R is formed between the heat insulating material 70 and the surface of the partition wall 69R facing right. The second outlet 93R is provided at the upper end of the third space 83R. The lower end of the third space 83R is connected to the other end of the first space 81R.

[0053] By providing the second outlet 93R connected to the first space 81R in addition to the inlet 91R, the adhesive M filled into the first space 81R from the inlet 91R is easily discharged from the second outlet 93R via the third space 83R, making it easier to efficiently spread the adhesive M to the other side (left side) of the first space 81R and the third space 83R. As a result, the heat insulating material 70 and the partition wall 69R are bonded together via the adhesive M, making it difficult for drain water to infiltrate forward from between the heat insulating material 70 and the partition wall 69R. Furthermore, through the second outlet 93R, it is possible to visually check whether the adhesive M has reached the other side of the first space 81R, making it easier to adjust the amount of adhesive M filled into the first space 81R.

[0054] As shown in Figures 10, 11 and 13, in addition to the inlet 91L, the insulating material 70 has a second space 82L connected to the first space 81L, a first outlet 92L connected to the first space 81L via the second space 82L, and a second outlet 93L connected to the first space 81L via the third space 83L.

[0055] The second space 82L is formed between a groove 73 provided in the left end face of the thermal insulation material 70 and a surface of the left wall 60L facing right and left. A first exhaust port 92L is provided at the upper end of the second space 82L. A lower end of the second space 82L is connected to one end of the first space 81L. Therefore, the first exhaust port 92L is located to the left of the first exhaust port 92L.

[0056] The third space 83L is formed between the heat insulating material 70 and the left-facing surface of the partition wall 69L. A second outlet 93L is provided at the upper end of the third space 83L. The lower end of the third space 83L is connected to the other end of the first space 81L. Therefore, the second outlet 93L is located to the right of the inlet 91L.

[0057] As described above, the injection port 91L is provided between the first outlet 92L and the second outlet 93L. Therefore, the adhesive M filled into the first space 81L from the injection port 91L is easily discharged from the first outlet 92L via the second space 82L, and the adhesive M filled into the first space 81R from the injection port 91R is easily discharged from the second outlet 93R via the third space 83R, making it easier to efficiently distribute the adhesive M throughout the first space 81R, the second space 82L, and the third space 83R. As a result, the heat insulating material 70 is bonded to the groove 73 and the partition wall 69R via the adhesive M, making it difficult for drain water to infiltrate forward from between the heat insulating material 70 and the groove 73 and the partition wall 69R.

[0058] As shown in FIG. 10 , the drain pan 60 has a partition wall 69B that separates the inclined portion 65L in the front-to-rear direction. The partition wall 69B extends upward from the water-conducting surface 64U of the inclined portion 65L and connects the left side wall 60L and the left side wall 66L. The position of the upper end of the partition wall 69B is substantially the same as the position of the upper surface 70U of the heat insulating material 70. Therefore, a step is created between the upper surface 70U and the portion of the inclined portion 65L rearward of the partition wall 69B. Therefore, drain water that flows from the upper surface 70U (discharge path R2) to the portion of the inclined portion 65L rearward of the partition wall 69B is unlikely to return to the portion forward of the partition wall 69B.

[0059] Generally, the drain pan 60 (water receiving surface 61U) is provided on the main body 50 so as to be inclined to either the left or right with respect to the horizontal direction. As a result, the drain water is more likely to be discharged from the outlet provided at the lower position of the outlets 63R and 63L.

[0060] On the other hand, drain water is less likely to be discharged from the outlet that is located higher than the outlet 63R or 63L, and therefore the drain water is more likely to remain in the discharge path R1 than from the outlet that is located lower.

[0061] Therefore, by covering both the inclined portion 65R connected to the outlet 63R and the inclined portion 65L connected to the outlet 63L with the heat insulating material 70 and further bonding them with adhesive M, it becomes difficult for drain water to enter between the water guide surface 64U and the heat insulating material 70 from either inclined portion.

[0062] The embodiments of the present disclosure have been described above with reference to the drawings. However, the present disclosure is not limited to the above embodiments and can be implemented in various forms without departing from the spirit and scope of the present disclosure. Furthermore, the components disclosed in the above embodiments can be modified as appropriate. For example, some of the components shown in one embodiment may be added to the components of another embodiment, or some of the components shown in one embodiment may be deleted from the embodiment.

[0063] Furthermore, the drawings mainly show each component in a schematic manner to facilitate understanding of the invention, and the thickness, length, number, spacing, etc. of each component shown in the drawings may differ from the actual ones due to the convenience of creating the drawings. Furthermore, the configurations of each component shown in the above embodiment are merely examples and are not particularly limited, and it goes without saying that various modifications are possible within a scope that does not substantially deviate from the effects of the present disclosure. [Industrial Applicability]

[0064] The present disclosure is applicable to the field of air conditioners. [Explanation of symbols]

[0065] 5: Indoor unit 52:Heat exchanger 60: Drain pan 60L: Left side wall 60R: Right side wall 61U: Water receiving surface 63L, 63R: Discharge port 64U: Water conveyance surface 65L, 65R: Inclined part 69L, 69R: Bulkhead 70: Insulation material 70D: Bottom surface 71: First opposing surface 72L, 72R: 2nd opposing surface 73:Groove 74: End face 75: Groove 81L, 81R: First Space 82L, 82R: Second Space 83L, 83R: The third space 91L, 91R: injection port 92L, 92R: 1st outlet 93L, 93R: Second outlet M:Go on R1: Exit the road

Claims

1. A heat exchanger; Drain pan and Equipped with The drain pan is a water receiving surface provided below the heat exchanger in the vertical direction, facing the lower part of the heat exchanger, and receiving drain water generated on the surface of the heat exchanger; a drain outlet for discharging the drain water; and a water guide surface that connects the water receiving surface and the drain outlet and forms a discharge path for guiding the drain water from the water receiving surface to the drain outlet. and The discharge path is an inclined portion that is inclined downward in the up-down direction as it approaches the discharge port, and the discharge port is provided at an end portion on the rear side; The water receiving surface and the water conveying surface that forms the discharge path from the water receiving surface to at least a part of the inclined portion are covered with a heat insulating material so that they are not exposed when viewed from above.

2. The air conditioner according to claim 1 , wherein a surface of the heat insulating material covering the water conducting surface of the inclined portion, the surface facing the water conducting surface, is bonded to the water conducting surface with a water-insoluble adhesive.

3. A first space is formed between the opposing surface and the water guide surface, and is elongated in a direction perpendicular to the discharge path, The air conditioner according to claim 2 , wherein the adhesive is filled in the first space.

4. The air conditioner according to claim 3 , wherein the first space extends from one end to the other end of the water guide surface in the orthogonal direction.

5. The air conditioner according to claim 3 , further comprising an inlet communicating with the first space.

6. The air conditioner according to claim 5 , wherein the inlet is located between one end and the other end of the first space in the orthogonal direction.

7. The air conditioner according to claim 5 , further comprising a first exhaust port communicating with the first space.

8. a first wall extending upward in the vertical direction from one side of the water guide surface in the orthogonal direction; a second wall extending upward in the vertical direction from the other side of the water guide surface in the orthogonal direction; and the heat insulating material has an end surface facing the first wall, The air conditioner according to claim 7 , wherein the first outlet is provided between the end surface and the first wall, and is connected to the first space via the second space extending upward.

9. The air conditioner according to claim 8 , further comprising a second exhaust port provided between the heat insulating material and the second wall, the second exhaust port communicating with the first space via the third space extending upward.

10. a second outlet communicating with the first space; The air conditioner according to claim 7 , wherein the inlet is provided between the first outlet and the second outlet.

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