Heat exchanger, heat exchange unit, and air conditioner

Abstract

This heat exchanger is provided with: a heat exchanger main body that has a heat transfer tube and a plurality of fins, and that extends in a first direction that intersects the vertical direction; and a bracket attached to an end portion on one side of the heat exchanger main body in the first direction, the heat transfer tube having a plurality of extension portions extending in the first direction and a plurality of folded portions connecting end portions of adjacent extension portions in the first direction to each other, the bracket is provided with a base part located on one side of the heat exchanger body in the first direction, a peripheral wall part protruding from the outer peripheral edge part of the base part to one side of the first direction, and a partition wall part partitioning the interior of the peripheral wall part in a second direction intersecting with the horizontal direction. A plurality of accommodating parts arranged in the second direction are formed by the base part, the peripheral wall part and the partition wall part, a through hole through which the folded-back part passes is formed in the base part of each accommodating part, the inner edge of each through hole is configured to be separated from the folded-back part, and the partition wall part comprises a first partition wall part and a second partition wall part; the first partition wall portion is provided with a through portion penetrating through the first partition wall portion.

Description

Technical Field

[0001] The present disclosure relates to a heat exchanger, a heat exchange unit, and an air conditioner. Background Art

[0002] For example, as shown in Patent Document 1, there is known an air conditioner having a bracket, which is coupled to one end of a heat exchanger (heat exchanger body) and has an opening (through hole) for accommodating a hairpin elbow portion (turning portion) for connecting one ends of straight pipes to each other. In the air conditioner of Patent Document 1, a gap is provided between the inner periphery of the opening and the hairpin elbow portion for condensed water (dew condensation water) to flow due to gravity.

[0003] Patent Document 1: Japanese Patent Application Publication No. 2021-55953

[0004] In the bracket as described above, a partition wall is provided for reinforcement, so that a plurality of receiving parts for receiving the hairpin elbow are formed. Therefore, condensed water (dew condensation water) that does not flow into the gap between the inner periphery of the opening and the hairpin elbow may accumulate in the receiving part and stay. Summary of the invention

[0005] In view of the above circumstances, one object of the present disclosure is to provide a heat exchanger having a structure capable of suppressing condensation water from accumulating in a housing portion of a bracket, a heat exchange unit having such a heat exchanger, and an air conditioner having such a heat exchange unit.

[0006] One aspect of the heat exchanger disclosed herein is a heat exchanger provided in an air conditioner, wherein the heat exchanger comprises: a heat exchanger body having a heat transfer tube and a plurality of fins mounted on the heat transfer tube and extending in a first direction intersecting a vertical direction; and a bracket mounted on an end portion of the heat exchanger body on one side of the first direction, the heat transfer tube having: a plurality of extension portions extending in the first direction; and a plurality of return portions connecting the ends of adjacent extension portions in the first direction to each other, the bracket having: a base portion located on one side of the heat exchanger body in the first direction; a peripheral portion disposed on the heat exchanger body; and a peripheral portion disposed on the heat exchanger body. A wall portion, which protrudes from the outer peripheral edge portion of the base to one side of the first direction; and at least one partition wall portion, which divides the interior of the peripheral wall portion along a second direction intersecting the horizontal direction, a plurality of receiving portions arranged along the second direction are formed by the base, the peripheral wall portion and the at least one partition wall portion, and through holes for the return portion to pass through are respectively formed at the bases of the plurality of receiving portions, and the inner edges of the through holes are configured to leave the return portion, and the at least one partition wall portion includes a first partition wall portion, and at least one through portion that penetrates the first partition wall portion is formed in the first partition wall portion.

[0007] One aspect of the heat exchange unit disclosed herein includes the heat exchanger described above and a blower that sends air to the heat exchanger.

[0008] One aspect of the air conditioner of the present disclosure includes an indoor unit and an outdoor unit, and at least one of the indoor unit and the outdoor unit is the above-mentioned heat exchange unit.

[0009] According to the present disclosure, in the heat exchanger of the air conditioner, it is possible to suppress the accumulation of condensation water in the housing portion of the bracket. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram showing a schematic structure of an air conditioner in the embodiment.

[0011] Figure 2 It is a perspective view showing the air conditioner in the embodiment.

[0012] Figure 3 is a cross-sectional view showing an indoor unit in the embodiment, and is Figure 2 Section view III-III in FIG.

[0013] Figure 4 is a cross-sectional view showing an indoor unit in the embodiment, and is Figure 2 IV-IV section view in FIG.

[0014] Figure 5 It is an exploded perspective view showing the heat exchanger in the embodiment.

[0015] Figure 6 It is a perspective view showing a part of the heat exchanger in the embodiment.

[0016] Figure 7 It is a perspective view showing a bracket in the embodiment.

[0017] Figure 8 is a perspective view showing a bracket in an embodiment, and is a perspective view showing a bracket in an embodiment. Figure 7 Images of the bracket viewed from different angles.

[0018] Fig. 9 It is a perspective view showing a part of the heat exchanger body and a part of the bracket in the embodiment.

[0019] Fig.10 This is a diagram showing a portion of a heat exchanger body and a portion of a bracket according to the embodiment, as viewed from the left side.

[0020] Fig.11 It is a perspective view showing a part of the bracket in the embodiment.

[0021] Fig.12is a perspective view showing a portion of a bracket in an embodiment, and is viewed from the perspective of Fig.11 Figures showing a portion of the stent viewed from different angles.

[0022] Fig.13 It is a partially cutaway perspective view showing a part of the heat exchanger and a part of the drain pan in the embodiment. DETAILED DESCRIPTION

[0023] Hereinafter, the embodiments of the present disclosure will be described with reference to the accompanying drawings. In addition, the scope of the present disclosure is not limited to the following embodiments, and can be arbitrarily changed within the scope of the technical concept of the present disclosure. In addition, in the following drawings, in order to facilitate the understanding of each structure, there are cases where the proportions and quantities in each structure are different from the proportions and quantities in the actual structure.

[0024] In addition, the X-axis, Y-axis, and Z-axis are appropriately shown in the drawings. The X-axis represents one direction in the horizontal direction. The Y-axis represents another direction in the horizontal direction. The Z-axis represents the vertical direction. In the following description, the horizontal direction along the X-axis is referred to as the "front-rear direction X", the horizontal direction along the Y-axis is referred to as the "left-right direction (first direction) Y", and the vertical direction along the Z-axis is referred to as the "vertical direction Z". The front-rear direction X, the left-right direction Y, and the vertical direction Z are mutually orthogonal directions. In the following description, the side (+Z side) to which the arrow of the Z-axis in the vertical direction Z points is set as the upper side, and the side (-Z side) opposite to the side to which the arrow of the Z-axis points in the vertical direction Z is set as the lower side. In addition, the side (+X side) to which the arrow of the X-axis in the front-rear direction X points is set as the front side, and the side (-X side) opposite to the side to which the arrow of the X-axis points in the front-rear direction X is set as the rear side. In addition, the left-right direction Y is the left-right direction when the indoor unit 11 of the following embodiment is observed from the front (+X side). That is, the side in which the Y-axis arrow in the left-right direction Y points (+Y side) is the right side, and the side opposite to the side in which the Y-axis arrow in the left-right direction Y points (-Y side) is the left side.

[0025] In the following embodiments, the left-right direction Y corresponds to the “first direction.” In the following embodiments, the left side (−Y side) corresponds to “one side of the first direction,” and the right side (+Y side) corresponds to “the other side of the first direction.”

[0026] Figure 1 It is a schematic diagram showing a schematic structure of the air conditioner 10 in the embodiment. Figure 2 1 is a perspective view showing the air conditioner 10 in the embodiment. Figure 1 and Figure 2As shown in FIG. 1 , the air conditioner 10 includes an indoor unit (heat exchange unit) 11, an outdoor unit 12, and a circulation path portion 13. The indoor unit 11 is arranged indoors. The outdoor unit 12 is arranged outdoors. The indoor unit 11 and the outdoor unit 12 are connected to each other through the circulation path portion 13 through which the refrigerant 19 circulates. Figure 2 As shown, the indoor unit 11 and the outdoor unit 12 are connected to each other by a pipe bundle 13a constituting a part of the circulation path portion 13. The indoor unit 11 and the outdoor unit 12 are heat exchange means for exchanging heat with air.

[0027] The air conditioner 10 can adjust the temperature of the indoor air by exchanging heat between the refrigerant 19 flowing in the circulation path portion 13 and the air in the room where the indoor unit 11 is arranged. Examples of the refrigerant 19 include fluorine-based refrigerants and hydrocarbon-based refrigerants with low global warming potential (GWP).

[0028] like Figure 1 As shown, the outdoor unit 12 includes a casing 12a, a compressor 12b, a heat exchanger 12c, a flow regulating valve 12d, a blower 12e, a four-way valve 12f, and a control unit 12g. The compressor 12b, the heat exchanger 12c, the flow regulating valve 12d, the blower 12e, the four-way valve 12f, and the control unit 12g are accommodated inside the casing 12a.

[0029] The compressor 12b, the heat exchanger 12c, the flow regulating valve 12d, and the four-way valve 12f are provided in the portion of the circulation path section 13 located inside the housing 12a. The compressor 12b, the heat exchanger 12c, the flow regulating valve 12d, and the four-way valve 12f are connected through the portion of the circulation path section 13 located inside the housing 12a.

[0030] The four-way valve 12f is provided in a portion of the circulation path portion 13 connected to the discharge side of the compressor 12b. The four-way valve 12f can reverse the direction of the refrigerant 19 flowing in the circulation path portion 13 by switching a portion of the path of the circulation path portion 13. Figure 1 In the case of the path indicated by the solid line in the four-way valve 12f, the refrigerant 19 flows in the circulation path portion 13. Figure 1 On the other hand, the path connected by the four-way valve 12f is Figure 1 In the case of the path indicated by the dotted line in the four-way valve 12f, the refrigerant 19 flows in the circulation path portion 13. Figure 1 Flow in the direction indicated by the dashed arrow.

[0031] The indoor unit 11 includes a housing 20, a heat exchanger 90, and a blower 50 that sends air to the heat exchanger 90. The housing 20 accommodates the heat exchanger 90 and the blower 50. The indoor unit 11 can perform a cooling operation to cool the air in the room where the indoor unit 11 is arranged, and a heating operation to heat the air in the room where the indoor unit 11 is arranged.

[0032] When the indoor unit 11 is in cooling operation, the refrigerant 19 flowing in the circulation path portion 13 is directed to Figure 1 That is, when the indoor unit 11 is in cooling operation, the refrigerant 19 flowing in the circulation path portion 13 circulates in a manner that it passes through the compressor 12b, the heat exchanger 12c of the outdoor unit 12, the flow regulating valve 12d, and the heat exchanger 90 of the indoor unit 11 in sequence and returns to the compressor 12b. In cooling operation, the heat exchanger 12c in the outdoor unit 12 functions as a condenser, and the heat exchanger 90 in the indoor unit 11 functions as an evaporator.

[0033] On the other hand, when the indoor unit 11 performs heating operation, the refrigerant 19 flowing in the circulation path portion 13 is directed to the indoor unit 11. Figure 1 That is, when the indoor unit 11 performs heating operation, the refrigerant 19 flowing in the circulation path portion 13 circulates in a manner that it passes through the compressor 12b, the heat exchanger 90 of the indoor unit 11, the flow regulating valve 12d, and the heat exchanger 12c of the outdoor unit 12 in sequence and returns to the compressor 12b. In the heating operation, the heat exchanger 12c in the outdoor unit 12 functions as an evaporator, and the heat exchanger 90 in the indoor unit 11 functions as a condenser.

[0034] Next, the indoor unit 11 will be described in more detail. Figure 3 is a cross-sectional view showing the indoor unit 11, and is Figure 2 Section view III-III in FIG. Figure 4 is a cross-sectional view showing the indoor unit 11, and is Figure 2 IV-IV section view in Figure 1. Figure 2 to Figure 4 As shown in FIG. 1 , the indoor unit 11 is a ceiling-embedded indoor unit that is embedded in the ceiling. The casing 20 of the indoor unit 11 includes a casing body 21 and a design panel 22 .

[0035] The casing body 21 is a substantially rectangular box-shaped body extending in the left-right direction Y and opening downward. The casing body 21 is embedded in the ceiling of the room where the indoor unit 11 is installed. Figure 2 As shown, the housing body 21 is fixed to the ceiling via four suspension bolts extending in the vertical direction Z. The upper ends of the suspension bolts are fixed to the ceiling floor.

[0036] The design panel 22 is installed in the opening portion on the lower side of the shell body 21. The design panel 22 is exposed in the room where the indoor unit 11 is installed. The design panel 22 is a roughly rectangular plate that is longer in the left-right direction Y. The design panel 22 protrudes on both sides of the left-right direction Y than the shell body 21. A suction port 22a and a blow-out port 22b are formed in the design panel 22. Two suction ports 22a are provided at intervals along the front-to-back direction X. Each suction port 22a is divided into a grid shape. The blow-out port 22b is located at the front side (+X side) of the suction port 22a.

[0037] like Figure 3 As shown, the air duct member 30 is disposed inside the housing body 21. The air duct member 30 has an air duct 31 extending from the blower 50 to the blow-out port 22b. The air duct 31 extends from the blower 50 to the front side (+X side), bends downward, and extends to the blow-out port 22b. Figure 4 As shown, the air duct member 30 has a side wall portion 32 that covers the blower 50 from the left side (-Y side). The side wall portion 32 is located on the upper side of a bracket 70 described later in the heat exchanger 90.

[0038] like Figure 2 As shown, an electrical component box 80 is installed on the left side (-Y side) of the housing body 21. The electrical component box 80 is located above the portion of the design panel 22 that protrudes to the left side from the housing body 21. The electrical component box 80 contains a control substrate for controlling the indoor unit 11.

[0039] In this embodiment, the blower 50 is a cross-flow fan extending in the left-right direction Y. Figure 4 As shown, the blower 50 has an impeller 51 extending in the left-right direction Y, and a driving unit 52 that rotates the impeller 51 around a rotation axis R extending in the left-right direction Y. The driving unit 52 is a motor. The driving unit 52 is held by the side wall portion 32 of the air duct component 30. The driving unit 52 is electrically connected to a control substrate in the electrical component box 80. Based on a signal from the control substrate, the driving unit 52 rotates the impeller 51 to suck indoor air from the suction port 22a into the interior of the housing 20. The air sucked into the interior of the housing 20 passes through the heat exchanger 90 and is sucked into the impeller 51, and is discharged from the impeller 51 to the air duct 31. The air discharged into the air duct 31 flows in the air duct 31 and is blown into the room from the blow-out port 22b.

[0040] Figure 5 is an exploded perspective view showing the heat exchanger 90. Figure 5 As shown, the heat exchanger 90 extends in the left-right direction Y. The heat exchanger 90 includes a heat exchanger body 40 extending in the left-right direction Y intersecting the vertical direction Z, and a bracket 70 attached to the left end (−Y side) of the heat exchanger body 40 .

[0041] In this embodiment, the heat exchanger body 40 has a first heat exchange portion 40a and a second heat exchange portion 40b. The first heat exchange portion 40a is located at the rear side (-X side) of the second heat exchange portion 40b. Figure 3 As shown, the first heat exchange portion 40a and the second heat exchange portion 40b extend in a direction that separates from each other in the front-rear direction X as they go upward when viewed in the left-right direction Y. The lower end of the first heat exchange portion 40a and the lower end of the second heat exchange portion 40b are connected to each other at the lower side of the blower 50. The heat exchanger body 40 is formed into a substantially V-shape when viewed in the left-right direction Y by the first heat exchange portion 40a and the second heat exchange portion 40b.

[0042] In addition, in the following description, the direction in which the first heat exchange portion 40a extends when viewed along the left-right direction Y is referred to as the "first inclined direction (second direction) D1", and the direction in which the second heat exchange portion 40b extends when viewed along the left-right direction Y is referred to as the "second inclined direction (second direction) D2". In the present embodiment, the first inclined direction D1 and the second inclined direction D2 are equivalent to a second direction that intersects the horizontal direction. The first inclined direction D1 and the second inclined direction D2 are directions that are orthogonal to the left-right direction Y and are inclined obliquely relative to both the front-rear direction X and the vertical direction Z. The first inclined direction D1 is a direction that tends to the rear side (-X side) as it goes upward. The second inclined direction D2 is a direction that tends to the front side (+X side) as it goes upward.

[0043] In the following description, the side (+D1 side) to which the arrow of the D1 axis shown in the figure points, that is, the side which becomes the upper side (+Z side) and the rear side (-X side) in the first inclined direction D1 is appropriately referred to as "one side of the first inclined direction D1". In addition, the side (-D1 side) opposite to the side to which the arrow of the D1 axis points, that is, the side which becomes the lower side (-Z side) and the front side (+X side) in the first inclined direction D1 is appropriately referred to as "the other side of the first inclined direction D1".

[0044] The upper part of the first heat exchange part 40a and the upper part of the second heat exchange part 40b are arranged across the blower 50 in the front-rear direction X. The upper end of the first heat exchange part 40a is located above the upper end of the second heat exchange part 40b. The upper end of the first heat exchange part 40a is located above the upper end of the blower 50. The upper end of the second heat exchange part 40b is located below the upper end of the blower 50.

[0045] The first heat exchange section 40a is located at a position away from the upper side of the suction port 22a located on the rear side (-X side) of the two suction ports 22a. The air sucked into the interior of the housing 20 from the suction port 22a located on the rear side passes through the first heat exchange section 40a and is sucked into the impeller 51 of the blower 50. The second heat exchange section 40b is located at a position away from the upper side of the suction port 22a located on the front side (+X side) of the two suction ports 22a. The air sucked into the interior of the housing 20 from the suction port 22a located on the front side passes through the second heat exchange section 40b and is sucked into the impeller 51 of the blower 50.

[0046] like Figure 5 As shown, the heat exchanger body 40 includes a heat transfer tube 41 and a plurality of fins 42 attached to the heat transfer tube 41. The heat transfer tube 41 constitutes a part of the circulation path portion 13. The refrigerant 19 flows inside the heat transfer tube 41. One end of the heat transfer tube 41 and the other end of the heat transfer tube 41 are respectively connected to each pipe included in the pipe bundle 13a. The refrigerant 19 flowing from the outdoor unit 12 to one end of the heat transfer tube 41 through the pipe of the pipe bundle 13a flows from the other end of the heat transfer tube 41 to other pipes of the pipe bundle 13a and flows to the outdoor unit 12. In the case where the heat exchanger 90 functions as an evaporator, if the temperature of the refrigerant 19 flowing into the inside of the heat transfer tube 41 is low, the heat transfer tube 41 is cooled by the refrigerant 19, and condensation may occur on the surface of the heat transfer tube 41. For example, a plurality of heat transfer tubes 41 are provided.

[0047] In the present embodiment, the heat transfer tube 41 is a tube having a circular cross section. The heat transfer tube 41 is made of metal, for example. The material constituting the heat transfer tube 41 is, for example, copper or a copper alloy. In addition, the material constituting the heat transfer tube 41 may also be aluminum or an aluminum alloy. The heat transfer tube 41 has: a plurality of extension portions 41a extending in the left-right direction Y, and a plurality of return portions 41b connecting the ends of adjacent extension portions 41a in the left-right direction Y to each other. The heat transfer tube 41 connects the plurality of extension portions 41a by means of the plurality of return portions 41b, thereby forming a shape that alternately returns in the left-right direction Y while extending in a winding manner. The plurality of extension portions 41a included in the first heat exchange portion 40a are arranged at intervals along the first inclined direction D1. The plurality of extension portions 41a included in the second heat exchange portion 40b are arranged at intervals along the second inclined direction D2.

[0048] The plurality of folding portions 41b include a folding portion 41b located on the left side (-Y side) and a folding portion 41b located on the right side (+Y side). The folding portion 41b located on the left side extends in a U-shape that is open to the right. The folding portion 41b located on the right side extends in a U-shape that is open to the left. The folding portion 41b located on the left side protrudes to the left side than the plurality of fins 42. The folding portion 41b located on the right side protrudes to the right side than the plurality of fins 42.

[0049] The multiple return portions 41b at the end portion of the first heat exchange portion 40a located on the left side (-Y side) and the multiple return portions 41b at the end portion of the first heat exchange portion 40a located on the right side (+Y side) are arranged at intervals along the first inclined direction D1. The multiple return portions 41b at the end portion of the second heat exchange portion 40b located on the left side and the multiple return portions 41b at the end portion of the second heat exchange portion 40b located on the right side are arranged at intervals along the second inclined direction D2.

[0050] The plurality of fins 42 are arranged in a row with gaps along the left-right direction Y. The plurality of fins 42 are plate-shaped with the plate surface facing the left-right direction Y. The plurality of fins 42 are made of metal. The material constituting the plurality of fins 42 is, for example, aluminum or an aluminum alloy. Figure 3 As shown, a plurality of holes 42a through which the extensions 41a pass are formed in each of the plurality of fins 42. The plurality of fins 42 are fixed to the plurality of extensions 41a passing through the plurality of holes 42a, for example, by brazing.

[0051] The plurality of fins 42 include: a plurality of fins 42 constituting a portion of the first heat exchange portion 40a, and a plurality of fins 42 constituting a portion of the second heat exchange portion 40b. The plurality of fins 42 included in the first heat exchange portion 40a are substantially rectangular plates extending along the first inclined direction D1. The plurality of fins 42 included in the second heat exchange portion 40b are substantially rectangular plates extending along the second inclined direction D2.

[0052] The air passing through the heat exchanger 90 passes through the gaps between the fins 42. Although not shown in the figure, a portion of the extension portion 41a of the heat transfer tube 41 is exposed in the gaps between the fins 42. The air passing through the gaps between the fins 42 hits the portion of the extension portion 41a exposed in the gaps between the fins 42. Thus, heat exchange is performed between the air passing through the gaps between the fins 42 and the refrigerant 19 flowing in the heat transfer tube 41.

[0053] Figure 6 It is a perspective view showing a part of the heat exchanger 90 . Figure 7 It is a perspective view showing the bracket 70 . Figure 8 is a perspective view showing the bracket 70, and is a perspective view showing the bracket 70 from the perspective of Figure 7 Figures showing the bracket 70 from different angles. Fig. 9 It is a perspective view showing a part of the heat exchanger body 40 and a part of the bracket 70 . Fig.10 This is a diagram showing a portion of the heat exchanger body 40 and a portion of the bracket 70 as viewed from the left side (−Y side). Fig.11 It is a perspective view showing a part of the bracket 70 . Fig.12 is a perspective view showing a portion of the bracket 70, and is taken from the Fig.11Figures showing a portion of the bracket 70 viewed from different angles.

[0054] like Figure 6 As shown, the bracket 70 is located on the left side (-Y side) of the heat exchanger body 40. The bracket 70 is a component that improves the strength of the heat exchanger 90. In addition, the bracket 70 is a component that adjusts the flow of air passing through the heat exchanger body 40 to an appropriate flow. In addition, the bracket 70 is a component that protects the folding portion 41b. In this embodiment, the bracket 70 is made of resin. In addition, the bracket 70 can also be made of metal.

[0055] like Figure 4 As shown, the bracket 70 is located at the lower side of the side wall portion 32 of the air duct component 30. The bracket 70 is fixed to the side wall portion 32, for example, by bolts. By the side wall portion 32 and the fixed wall portion 70c of the bracket 70 described later, the end of the left side (-Y side) of the space where the blower 50 is arranged is closed. The space where the blower 50 is arranged is a space located between the heat exchanger body 40 and the air duct component 30 in the vertical direction Z. The space where the blower 50 is arranged includes a space located between the first heat exchange portion 40a and the second heat exchange portion 40b in the front-rear direction X. The end of the left side of the space where the blower 50 is arranged is closed, so that the air after passing through the heat exchanger body 40 can be suppressed from leaking from the end of the left side of the space. As a result, the air flowing into the heat exchanger body 40 can be easily appropriately flowed relative to the portion of the heat exchanger body 40 where the fins 42 are arranged. Therefore, heat exchange between the air and refrigerant 19 can be easily and appropriately performed, and the air passing through the heat exchanger body 40 can be appropriately guided to the air blower 50 and easily flow into the air passage 31 .

[0056] like Figure 6 to Figure 8 As shown, the bracket 70 has: a first bracket portion 70a, a second bracket portion 70b and a fixed wall portion 70c. The first bracket portion 70a extends along a first inclined direction D1. The second bracket portion 70b extends along a second inclined direction D2. In the first bracket portion 70a, the first inclined direction D1 is a second direction intersecting the horizontal direction. In the second bracket portion 70b, the second inclined direction D2 is a second direction intersecting the horizontal direction.

[0057] The first bracket portion 70a is located on the rear side (-X side) of the second bracket portion 70b. The lower end of the first bracket portion 70a is connected to the lower end of the second bracket portion 70b. The first bracket portion 70a and the second bracket portion 70b are separated from each other in the front-to-back direction X as they move upward. The shape of the portion of the bracket 70 formed by the first bracket portion 70a and the second bracket portion 70b as viewed along the left-right direction Y is roughly V-shaped, which is roughly the same as the shape of the heat exchanger body 40 as viewed along the left-right direction Y. The upper end of the first bracket portion 70a is located above the upper end of the second bracket portion 70b.

[0058] like Figure 6 As shown, the first bracket portion 70a is located on the left side (-Y side) of the first heat exchange portion 40a. The first bracket portion 70a contacts the fin 42c located on the leftmost side among the plurality of fins 42 of the first heat exchange portion 40a. The second bracket portion 70b is located on the left side of the second heat exchange portion 40b. The second bracket portion 70b contacts the fin 42c located on the leftmost side among the plurality of fins 42 of the second heat exchange portion 40b.

[0059] The first bracket portion 70a includes: a base portion 71, a peripheral wall portion 72, and a plurality of partition wall portions 73. The base portion 71 is a plate-shaped plate with a plate surface facing the left-right direction Y and extending along the first inclined direction D1. The base portion 71 is located on the left side (-Y side) of the heat exchanger body 40. The peripheral wall portion 72 protrudes to the left side from the outer peripheral edge portion of the base portion 71. With the help of the base portion 71 and the peripheral wall portion 72, the first bracket portion 70a is formed into a substantially rectangular box shape extending along the first inclined direction D1 and opening to the left. The lower wall portion 72a located at the lowermost side of the peripheral wall portion 72 extends substantially parallel to the front-rear direction X.

[0060] The plurality of partition walls 73 are located inside the peripheral wall portion 72. The plurality of partition walls 73 protrude from the base portion 71 to the left (-Y side). The plurality of partition walls 73 are arranged at intervals along the first oblique direction D1. Each partition wall portion 73 as a whole extends in a direction orthogonal to both the left-right direction Y and the first oblique direction D1.

[0061] A plurality of partition wall portions 73 divide the interior of the peripheral wall portion 72 along a first inclined direction D1 intersecting the horizontal direction. A plurality of receiving portions 74 arranged along the first inclined direction D1 are formed by the base 71, the peripheral wall portion 72, and the plurality of partition wall portions 73. The receiving portions 74 adjacent to each other along the first inclined direction D1 are separated from each other by the partition wall portions 73. In the first bracket portion 70a of the present embodiment, five partition wall portions 73 are provided and six receiving portions 74 are provided. By providing the partition wall portions 73, for example, even if a wall portion that surrounds and supports the folding portion 41b is not provided for each folding portion 41b, the strength of the first bracket portion 70a can be ensured.

[0062] like Figure 7 As shown, the base 71 of each of the plurality of receiving portions 74 is formed with a through hole 75. One or two through holes 75 are formed in the base 71 of each receiving portion 74. Figure 6As shown, the folded portion 41b passes through each through hole 75 one by one. At least a portion of the folded portion 41b passing through the through hole 75 is accommodated in the accommodation portion 74. In the present embodiment, the entire folded portion 41b passing through the through hole 75 is accommodated in the accommodation portion 74. The end portion on the left side (-Y side) of the folded portion 41b passing through the through hole 75 is located on the right side (+Y side) than the end portion on the left side of the peripheral wall portion 72 and the end portion on the left side of the partition wall portion 73.

[0063] like Fig. 9 and Fig.10 As shown, the inner edge of the through hole 75 is configured to be away from the folded portion 41b. A gap is provided between the inner edge of the through hole 75 and the folded portion 41b, surrounding the entire circumference of the folded portion 41b. No wall portion surrounding the folded portion 41b is provided on the peripheral portion of the through hole 75. The folded portion 41b through which the through hole 75 passes is configured to be away from the peripheral wall portion 72 and the partition wall portion 73. The distance between the folded portion 41b and the peripheral wall portion 72 and the distance between the folded portion 41b and the partition wall portion 73 are greater than the gap between the inner edge of the through hole 75 and the folded portion 41b.

[0064] The plurality of through holes 75 include a first through hole 75a and a second through hole 75b. The base 71 of a portion of the plurality of receiving portions 74 is formed with one first through hole 75a and one second through hole 75b. Figure 4 As shown, a receiving portion 74 having a first through hole 75a and a second through hole 75b is formed in the first bracket portion 70a, which are three upper receiving portions 74a except the receiving portion 74 located at the uppermost side among the four receiving portions 74 located above the drain pan 60 described later.

[0065] like Fig.11 and Fig.12 As shown, in each upper receiving portion 74a, the first through hole 75a and the second through hole 75b are arranged in a direction orthogonal to both the left-right direction Y and the first inclined direction D1. The first through hole 75a and the second through hole 75b are long holes extending along the first inclined direction D1. The first through hole 75a is located on the front side (+X side) of the second through hole 75b. The first through hole 75a is adjacently arranged on a side closer to the blower 50 than the second through hole 75b. In each upper receiving portion 74a, the first through hole 75a is arranged to be offset to the other side (-D1 side) of the first inclined direction D1 than the second through hole 75b. Thus, in each upper receiving portion 74a, the return portion 41b through which the first through hole 75a passes is arranged to be offset to the other side of the first inclined direction D1 than the return portion 41b through which the second through hole 75b passes.

[0066] like Fig.10As shown, the entire first through hole 75a overlaps with the fin 42 when viewed in the left-right direction Y. A portion of the fin 42c located on the leftmost side (-Y side) among the plurality of fins 42 is exposed through the first through hole 75a except for the portion through which the folded portion 41b passes. Fig.12 As shown, the first through hole 75a includes: a first hole body portion 75c having a long hole shape that is long in the first inclined direction D1, and a first protruding hole portion 75d that protrudes from the lower end of the first hole body portion 75c to the lower side in the vertical direction Z. Fig.11 As shown, the first protruding hole portion 75 d is formed at a position overlapping with a first partition wall portion 73 a described later in the partition wall portion 73 when viewed in the left-right direction Y.

[0067] like Fig.10 As shown, the entire second through hole 75b, except for a part, overlaps with the fin 42 when viewed in the left-right direction Y. A part of the fin 42c located on the leftmost side (-Y side) among the plurality of fins 42 is exposed through a part of the second through hole 75b that overlaps with the fin 42 in the left-right direction Y, except for a part through which the folded portion 41b passes. The second through hole 75b has a second hole body portion 75e in the shape of an elongated hole extending along the first oblique direction D1, and a second protruding hole portion 75f that protrudes downward and to the rear side (-X side) from an end portion of the second hole body portion 75e located on the lower side in the first oblique direction D1. A portion of the second protruding hole portion 75f that is away from the second hole body portion 75e on one side is an outer hole portion 75g located on the outer side of the fin 42 when viewed in the left-right direction Y. That is, in the present embodiment, the second through hole 75b is a through hole 75 having an outer hole portion 75g. The outer hole portion 75 g is formed in a portion of the base portion 71 that protrudes downward and rearward from the fin 42 .

[0068] like Figure 7 As shown, the plurality of partition wall portions 73 include a first partition wall portion 73a and a second partition wall portion 73b. In the present embodiment, the first partition wall portion 73a is three partition wall portions 73 located between the partition wall portion 73 at the uppermost side and the partition wall portion 73 at the lowermost side among the five partition wall portions 73. A plurality of the first partition wall portions 73a are provided at intervals along the first inclination direction D1. In the present embodiment, the second partition wall portion 73b is a partition wall portion located at the lowermost side among the five partition wall portions 73. The second partition wall portion 73b is located at a position lower than the plurality of the first partition wall portions 73a in the vertical direction Z.

[0069] The first partition wall portion 73a is a partition wall portion 73 in which the first through hole 75a and the second through hole 75b are formed in the upper housing portion 74a of the base portion 71 and constitutes the wall portion on the other side (-D1 side) of the first inclination direction D1. Figure 4As shown in FIG. 1 , at the first bracket portion 70a, the entire first partition wall portion 73a is located above the upper end portion of the drain pan 60 described later. Fig.10 and Fig.11 As shown, the first partition wall portion 73a has first inclined wall portions 73c, 73d and a second inclined wall portion 73e.

[0070] The first inclined wall portion 73c extends in a direction orthogonal to both the left-right direction Y and the first inclined direction D1. The upper and front (+X side) end of the first inclined wall portion 73c is connected to the upper and front wall portion of the peripheral wall portion 72. The first inclined wall portion 73c is located on the lower side as it approaches the rear side (-X side). The first inclined wall portion 73d extends obliquely from the lower and rear end of the first inclined wall portion 73c toward the upper and rear side. The first inclined wall portion 73d extends in a direction orthogonal to the left-right direction Y and intersecting the front-rear direction X, the vertical direction Z, and the first inclined direction D1. The first inclined wall portion 73d is located on the lower side as it approaches the front side. The first inclined wall portion 73c and the first inclined wall portion 73d extend in a direction located on the lower side of the vertical direction Z as it approaches the first through portion 78 described later.

[0071] The second inclined wall portion 73e extends obliquely from the end portion of the upper side and rear side (-X side) of the first inclined wall portion 73d toward the lower side and rear side. The second inclined wall portion 73e extends in the same direction as the direction in which the first inclined wall portion 73c extends. That is, the second inclined wall portion 73e extends in a direction orthogonal to both the left-right direction Y and the first inclined direction D1. The second inclined wall portion 73e is located on the lower side as it approaches the rear side. The second inclined wall portion 73e extends in a direction that is located on the lower side of the vertical direction Z as it approaches the second through-portion 79 described later. The lower and rear end portion of the second inclined wall portion 73e is connected to the lower and rear wall portion of the peripheral wall portion 72. The second inclined wall portion 73e is located at a position closer to the first inclined direction D1 (+D1 side) than the first inclined wall portion 73c.

[0072] like Fig. 9 As shown, a first through portion 78 is formed in the first partition wall portion 73a as a through portion that penetrates the first partition wall portion 73a. The first through portion 78 is a through portion formed in the first partition wall portion 73a at a portion that overlaps with the fin 42 when viewed along the left-right direction Y. In the present embodiment, the first through portion 78 spans the first inclined wall portion 73c and the first inclined wall portion 73d and is formed at the connection portion between the first inclined wall portion 73c and the first inclined wall portion 73d. The first through portion 78 penetrates the first inclined wall portion 73c and the first inclined wall portion 73d along the vertical direction Z at the connection portion between the first inclined wall portion 73c and the first inclined wall portion 73d.

[0073] The first through-hole 78 is formed at the end of the first partition wall 73a on the side connected to the base 71, that is, on the side (+Y side) where the fin 42 is located in the left-right direction Y. Fig.12 As shown, the first through-portion 78 is connected to the first protruding hole portion 75d of the first through-hole 75a. Thus, the first through-portion 78 is connected to the through-hole 75. In the present embodiment, the first through-portion 78 is a hole in which both the portion formed in the first inclined wall portion 73c and the portion formed in the first inclined wall portion 73d are rectangular.

[0074] like Fig.10 and Fig.11 As shown, the first partition wall portion 73a is formed with a second through portion 79 as a through portion that penetrates the first partition wall portion 73a. The second through portion 79 is a through portion formed in the first partition wall portion 73a at a portion located outside the fin 42 when viewed along the left-right direction Y. In the present embodiment, the second through portion 79 is formed at an end portion of the second inclined wall portion 73e on the side connected to the peripheral wall portion 72. The second through portion 79 penetrates the end portion of the second inclined wall portion 73e on the side connected to the peripheral wall portion 72 in the first inclined direction D1.

[0075] The second through-hole 79 is formed at the end of the first partition wall 73a opposite to the side connected to the base 71, that is, at the end opposite to the side where the fin 42 is located (-Y side) in the left-right direction Y. The second through-hole 79 opens to the left side (-Y side). Fig.10 As shown, the second through-portion 79 is formed at a position adjacent to the other side (-D1 side) of the first inclined direction D1 of the outer hole portion 75g when viewed along the left-right direction Y. The second through-portion 79 is formed to be separated from the outer hole portion 75g in the left-right direction Y. In other words, the second through-portion 79 is configured to be separated to the left side of the outer hole portion 75g. The second through-portion 79 is not connected to the through-hole 75. In the present embodiment, the second through-portion 79 is a rectangular cutout.

[0076] like Fig. 9As shown, the second partition wall portion 73b has inclined wall portions 73f, 73g, and 73h. The inclined wall portion 73f extends in a direction orthogonal to both the left-right direction Y and the first inclined direction D1. The upper and front (+X side) end of the inclined wall portion 73f is connected to the upper and front wall portion of the peripheral wall portion 72. The inclined wall portion 73f is located on the lower side as it moves toward the rear side (-X side). The inclined wall portion 73g extends obliquely from the lower and rear end of the inclined wall portion 73f toward the lower and rear side. The inclined wall portion 73g extends in a direction slightly inclined toward the vertical direction Z relative to the front-rear direction X. The inclined wall portion 73h extends obliquely from the lower and rear end of the inclined wall portion 73g toward the lower and rear side. The inclined wall portion 73h extends in the same direction as the direction in which the inclined wall portion 73f extends. The inclined wall portion 73h is located on the lower side as it moves toward the rear side. The lower and rear end of the inclined wall portion 73h is connected to the lower and rear wall portion of the peripheral wall portion 72. The inclined wall portion 73h is located on one side (+D1 side) in the first inclined direction D1 than the inclined wall portion 73f.

[0077] Unlike the first partition wall portion 73a, the second partition wall portion 73b does not have a through portion that penetrates the second partition wall portion 73b. In the first bracket portion 70a of the present embodiment, the through portion that penetrates the partition wall portion 73 is formed only in the first partition wall portion 73a among the plurality of partition walls 73. Figure 4 As shown, the lower portion of the second partition wall portion 73b is located below the upper end of the drain pan 60 described later. The lower portion of the second partition wall portion 73b is located inside the drain pan 60. The upper portion of the second partition wall portion 73b is located above the upper end of the drain pan 60.

[0078] like Fig.11 As shown, the first bracket portion 70a has a snap-fit ​​portion 76 connected to the inner edge of the through hole 75. The snap-fit ​​portion 76 has: an arm portion 76a extending from the inner edge of the through hole 75, and a claw portion 76b connected to the front end of the arm portion 76a. In the present embodiment, the arm portion 76a is bent from the upper portion of the inner edge of the through hole 75 toward the rear side (-X side), the lower side and the front side (+X side), and extends along the inner edge of the through hole 75. When the arm portion 76a is viewed along the left-right direction Y, it is in a U-shape that opens to the other side (-D1 side) of the first inclined direction D1. The arm portion 76a can be elastically deformed. In more detail, the arm portion 76a is pressed from the right side (+Y side) so that it can be elastically deformed toward the rear side and the lower side.

[0079] The claw portion 76b protrudes from the front end of the arm portion 76a toward the inside of the through hole 75 when viewed along the left-right direction Y. The claw portion 76b overlaps with the substantially central portion of the through hole 75 in the first inclined direction D1 when viewed along the left-right direction Y. Fig. 9As shown, the claw portion 76b is hooked on the folded portion 41b from the right side (+Y side). Thus, the bracket 70 is hooked on the heat exchanger body 40 in the left-right direction Y, and the bracket 70 is attached to the heat exchanger body 40.

[0080] In this embodiment, the engaging portion 76 is provided only in a part of the plurality of through holes 75. The engaging portion 76 is provided in three first through holes 75a among the plurality of through holes 75 and in the through hole 75 located on the front side (+X side) among the two through holes 75 formed in the receiving portion 74 located at the lowermost side.

[0081] like Figure 4 As shown, the second bracket portion 70b is generally in the shape of the first bracket portion 70a inverted in the front-to-back direction X. The second bracket portion 70b has parts corresponding to the base portion 71, the peripheral wall portion 72, the partition wall portion 73, the receiving portion 74, the through hole 75, and the engaging portion 76 of the first bracket portion 70a. The above-mentioned parts in the second bracket portion 70b are in the shape of the first bracket portion 70a inverted in the front-to-back direction X.

[0082] The second bracket part 70b is provided with three partition walls. Two of the three partition walls of the second bracket part 70b, except for the partition wall on the uppermost side, are first partition walls. The first partition wall in the second bracket part 70b is a shape after the first partition wall 73a in the first bracket part 70a is reversed in the front-back direction X. The partition wall in the second bracket part 70b does not include a partition wall equivalent to the second partition wall 73b in the first bracket part 70a. The second bracket part 70b is provided with two receiving parts equivalent to the upper receiving part 74a formed with the first through hole 75a and the second through hole 75b in the first bracket part 70a. The through holes equivalent to the first through hole 75a in these two receiving parts are respectively provided with the engaging parts of the second bracket part 70b.

[0083] The direction in the second bracket part 70b corresponding to the first tilt direction D1 of the first bracket part 70a is the second tilt direction D2. In the description of the effects described below, the effects in the first bracket part 70a are described as a representative, and the description of the effects in the second bracket part 70b is omitted.

[0084] like Figure 6As shown, the fixed wall portion 70c is located on the upper side of the first bracket portion 70a and the second bracket portion 70b. The fixed wall portion 70c connects the first bracket portion 70a and the second bracket portion 70b in the front-to-back direction X. The fixed wall portion 70c is a roughly triangular shape with a corner portion on the lower side when viewed along the left-right direction Y. A recess 77f is formed in the central portion of the front-to-back direction X at the edge portion of the upper side of the fixed wall portion 70c, which is recessed to the lower side. The inner edge portion of the recess 77f is an arc shape that is recessed to the lower side with the rotation axis R of the blower 50 as the center. The fixed wall portion 70c has a plate portion 77a, an edge wall portion 77b, a longitudinal rib portion 77c, a first inclined rib portion 77d, and a second inclined rib portion 77e.

[0085] The plate portion 77a is a generally triangular shape having a corner portion at the lower side when viewed along the left-right direction Y. The edge wall portion 77b protrudes to the left side (-Y side) from the edge portion of the upper side of the plate portion 77a. The edge wall portion 77b extends along the front-back direction X. The longitudinal rib portion 77c protrudes to the left side from the plate portion 77a and extends along the vertical direction Z. The longitudinal rib portion 77c connects the edge wall portion 77b to the peripheral wall portion 72 of the first bracket portion 70a or the peripheral wall portion of the second bracket portion 70b. A plurality of longitudinal rib portions 77c are provided at intervals along the front-back direction X.

[0086] The first inclined rib 77d protrudes to the left (-Y side) from a portion of the plate portion 77a located on the upper side of the first bracket portion 70a. The first inclined rib 77d extends along the first inclined direction D1. A plurality of first inclined ribs 77d are provided at intervals along the vertical direction Z. The first inclined rib 77d intersects with the longitudinal rib 77c.

[0087] The second inclined rib 77e protrudes to the left (-Y side) from a portion of the plate portion 77a located on the upper side of the second bracket portion 70b. The second inclined rib 77e extends along the second inclined direction D2. A plurality of second inclined ribs 77e are provided at intervals along the vertical direction Z. The second inclined rib 77e intersects with the longitudinal rib 77c.

[0088] like Figure 4 As shown, the shape of the upper edge of the fixed wall portion 70c is along the shape of the lower edge of the side wall portion 32 of the air duct member 30. The upper edge of the fixed wall portion 70c is in contact with the lower edge of the side wall portion 32. Both ends of the fixed wall portion 70c in the front-rear direction X are fixed to the side wall portion 32, for example, by bolts.

[0089] The indoor unit 11 includes a drain pan 60 located below the heat exchanger 90. The drain pan 60 can receive condensed water generated on the surface of the heat exchanger body 40. The condensed water accumulated in the drain pan 60 is discharged to the outside by a drain pump (not shown). The dimension of the drain pan 60 in the front-to-back direction X is larger than the dimension of the heat exchanger 90 in the front-to-back direction X. The drain pan 60 is a tray-shaped member opened upward.

[0090] Fig.13 1 is a partially cutaway perspective view showing a portion of the heat exchanger 90 and a portion of the drain pan 60. Fig.13 As shown, the drain pan 60 has a receiving portion 61 located on the lower side of the bracket 70. The receiving portion 61 extends in the front-rear direction X. The side wall portion 61a of the receiving portion 61, which is located on the side (+Y side) close to the center portion of the heat exchanger 90 in the left-right direction Y, is located slightly closer to the fin 42 side (+Y side) than the base 71 of the bracket 70 in the left-right direction Y. The side wall portion 61a is located on the lower side of the fin 42 arranged at a position close to the bracket 70 among the plurality of fins 42.

[0091] Although not shown in the figure, the drain pan 60 includes a receiving portion located below the connection portion between the first heat exchange portion 40a and the second heat exchange portion 40b and extending in the left-right direction Y, and a receiving portion located below the end portion on the right side (+Y side) of the heat exchanger body 40 and extending in the front-back direction X. The drain pan 60 has a substantially H-shaped shape when viewed in the vertical direction Z due to these two receiving portions and the receiving portion 61.

[0092] According to the present embodiment, the bracket 70 has: a base 71 located on the left side (-Y side) of the heat exchanger body 40, a peripheral wall portion 72 protruding to the left side from the outer peripheral edge portion of the base 71, and a partition wall portion 73 that divides the interior of the peripheral wall portion 72 along a first inclined direction D1 intersecting the horizontal direction. A plurality of receiving portions 74 arranged along the first inclined direction D1 are formed by the base 71, the peripheral wall portion 72, and the partition wall portion 73. A through hole 75 for the return portion 41b to pass through is formed in each of the bases 71 in the plurality of receiving portions 74. The inner edge of the through hole 75 is configured to be away from the return portion 41b. Therefore, it is possible to suppress the condensation water generated on the surface of the return portion 41b from accumulating between the return portion 41b and the inner edge of the through hole 75, and the condensation water can be easily discharged to the outside of the receiving portion 74 through the through hole 75. The condensed water discharged from the through hole 75 contacts the surface of the fin 42 c provided at the position closest to the bracket 70 among the fins 42 , flows downward in the vertical direction Z along the fin 42 c , and flows into the drain pan 60 .

[0093] In addition, according to the present embodiment, the partition wall portion 73 includes a first partition wall portion 73a. The first through portion 78 and the second through portion 79 are formed in the first partition wall portion 73a as through portions that penetrate the first partition wall portion 73a. Therefore, even if at least a portion of the condensation water generated on the surface of the return portion 41b does not flow toward the through hole 75 but flows toward the first partition wall portion 73a, the condensation water that flows onto the first partition wall portion 73a can be discharged from the inside of the accommodating portion 74 to the lower side in the vertical direction Z via the first through portion 78 or the second through portion 79.

[0094] As described above, according to the present embodiment, the condensation water generated on the surface of the folding portion 41b can be discharged from the through hole 75 or each through portion to the outside of the receiving portion 74. Therefore, it is possible to suppress the condensation water from accumulating in the receiving portion 74 of the bracket 70. Thus, it is possible to suppress the condensation water in the receiving portion 74 from continuing to contact the folding portion 41b, and it is possible to appropriately suppress corrosion of the folding portion 41b. Therefore, it is possible to appropriately suppress the refrigerant 19 from leaking from the heat transfer tube 41. Therefore, it is possible to increase the life of the heat exchanger 90.

[0095] At least a portion of the condensed water discharged downward from the housing portion 74 through the first through-portion 78 or the second through-portion 79 is discharged from the through-hole 75 in the other housing portion 74 located below the housing portion 74, and as described above, flows along the fin 42, for example, and flows into the drain pan 60. In addition, the condensed water discharged downward from the housing portion 74 through the first through-portion 78 or the second through-portion 79 may overflow to the left side (-Y side) after being accumulated in the wall portion of the other housing portion 74 located below the housing portion 74, and may flow into the drain pan 60 after being transferred to the heat exchanger 90.

[0096] In addition, the condensation water flowing onto the first partition wall portion 73a may sometimes overflow from the first partition wall portion 73a to the left side (-Y side) and be discharged from the storage portion 74. In this case, if the amount of condensation water overflowing from the first partition wall portion 73a to the left side is large, the condensation water may scatter and detach from the drain pan 60. In contrast, according to the present embodiment, since the condensation water flowing onto the first partition wall portion 73a is easily discharged through the first through portion 78 or the second through portion 79, the amount of condensation water overflowing from the first partition wall portion 73a to the left side can be suppressed from increasing. Thus, even if a portion of the condensation water overflows from the first partition wall portion 73a to the left side, the condensation water can be suppressed from scattering, and the situation where the condensation water cannot be recovered by the drain pan 60 can be suppressed.

[0097] In addition, according to the present embodiment, the through-portion formed in the first partition wall portion 73a includes the first through-portion 78 formed in the portion of the first partition wall portion 73a that overlaps with the fin 42 when viewed in the left-right direction Y. The first through-portion 78 is formed in the end portion of the first partition wall portion 73a on the side connected to the base portion 71, and is connected to the through-hole 75. Therefore, it is easy to make the condensed water flowing from the first partition wall portion 73a to the first through-portion 78 flow to the portion of the through-hole 75 connected to the first through-portion 78. In addition, since the first through-portion 78 overlaps with the fin 42 when viewed in the left-right direction Y, the condensed water discharged from the portion of the through-hole 75 connected to the first through-portion 78 can be appropriately contacted with the fin 42. As a result, the condensed water discharged from the portion of the through-hole 75 connected to the first through-portion 78 can be transferred on the surface of the fin 42 and appropriately flow to the lower side in the vertical direction Z, and can be appropriately flowed into the drain pan 60.

[0098] In addition, according to the present embodiment, the first partition wall portion 73a has the first inclined wall portions 73c and 73d extending in a direction that is located on the lower side of the vertical direction Z as it approaches the first through portion 78. Therefore, the condensed water flowing on the first inclined wall portions 73c and 73d in the first partition wall portion 73a can be guided to the first through portion 78 along the first inclined wall portions 73c and 73d by gravity. Thus, the condensed water can be easily discharged from the first through portion 78 or the through hole 75 connected to the first through portion 78.

[0099] In addition, according to the present embodiment, the through portion formed in the first partition wall portion 73a includes a second through portion 79, which is formed in a portion of the first partition wall portion 73a that is located outside the fin 42 when viewed along the left-right direction Y. The through hole 75 includes a second through hole 75b having an outer hole portion 75g that is located outside the fin 42 when viewed along the left-right direction Y. The second through portion 79 is formed to leave from the outer hole portion 75g along the left-right direction Y. Therefore, the outer hole portion 75g is connected to the second through hole 75b without forming a larger hole. Thus, the second through portion 79 and the outer hole portion 75g are provided to easily discharge the condensed water further from the storage portion 74, and the condensed water discharged from the outer hole portion 75g can be made difficult to scatter from the outer hole portion 75g.

[0100] Here, if Fig.13As shown in FIG. 1 , when the outer hole portion 75g is located below the fin 42 and opens toward the center side (+Y side) of the heat exchanger body 40 in the left-right direction Y, if condensation water is scattered from the outer hole portion 75g, the scattered condensation water may be scattered toward the center side (+Y side) of the heat exchanger body 40 in the left-right direction Y than the side wall portion 61a in the receiving portion 61 of the drain pan 60, and the scattered condensation water cannot be collected by the drain pan 60. In contrast, according to the present embodiment, since the condensation water is difficult to be scattered from the outer hole portion 75g as described above, the condensation water discharged from the outer hole portion 75g can be suppressed from being separated from the drain pan 60. The condensation water discharged from the outer hole portion 75g flows toward the lower side in the vertical direction Z along the surface of the bracket 70 or the surface of the fin 42, and flows into the receiving portion of the drain pan 60 located below the connection portion between the first heat exchange portion 40a and the second heat exchange portion 40b. In this way, the condensed water discharged from the outer hole portion 75g can be appropriately recovered by the drain pan 60.

[0101] In addition, according to the present embodiment, the second through-portion 79 is formed at the end of the first partition wall portion 73a on the opposite side (-Y side) to the side connected to the base portion 71, and is opened to the left side (-Y side). Therefore, the second through-portion 79 can be appropriately separated from the outer hole portion 75g. In addition, the protruding height of the first partition wall portion 73a at the portion where the second through-portion 79 is formed can be reduced, and the condensation water discharged through the second through-portion 79 can be difficult to scatter to the left side (-Y side). Thus, the situation in which the condensation water discharged through the second through-portion 79 is not recovered by the drain pan 60 can be suppressed.

[0102] In addition, according to the present embodiment, the first partition wall portion 73a has the second inclined wall portion 73e extending in a direction that is located on the lower side of the vertical direction Z as it approaches the second through portion 79. Therefore, the condensed water flowing onto the second inclined wall portion 73e in the first partition wall portion 73a can be guided to the second through portion 79 along the second inclined wall portion 73e by gravity. Thus, the condensed water can be easily discharged from the second through portion 79.

[0103] In addition, according to the present embodiment, a plurality of first partition wall portions 73a are provided at intervals along the first inclined direction D1. The plurality of partition wall portions 73 include a second partition wall portion 73b located on the lower side of the plurality of first partition wall portions 73a in the vertical direction Z. The through portion including the first through portion 78 and the second through portion 79 is formed only in the first partition wall portion 73a among the plurality of partition wall portions 73. That is, the through portion is not formed in the second partition wall portion 73b. Therefore, the bracket 70 can be manufactured more easily than when the through portion is formed in all the partition wall portions 73. In addition, since the second partition wall portion 73b is located on the lower side of the vertical direction Z than the first partition wall portion 73a, it is arranged at a position closer to the drain pan 60 than the first partition wall portion 73a. Thus, even when the condensation water overflowing from the second partition wall portion 73b is scattered, the condensation water is difficult to detach from the drain pan 60. Therefore, even if the through portion is not formed in the second partition wall portion 73 b , it is possible to prevent the condensed water from being unable to be recovered by the drain pan 60 .

[0104] In addition, according to the present embodiment, the bracket 70 has a snap-fitting portion 76 connected to the inner edge of the through hole 75. The snap-fitting portion 76 has an arm portion 76a extending from the inner edge of the through hole 75 and capable of elastic deformation, and a claw portion 76b connected to the front end of the arm portion 76a and hooked on the folding portion 41b from the right side (+Y side). Therefore, the bracket 70 can be prevented from detaching from the heat exchanger body 40 in the left-right direction Y by the claw portion 76b. In addition, when the bracket 70 is mounted on the heat exchanger body 40, if the folding portion 41b is inserted from the right side into the through hole 75 having the snap-fitting portion 76 provided at the inner edge, the claw portion 76b is pressed by the folding portion 41b and the arm portion 76a is elastically deformed. As a result, the folding portion 41b can be easily inserted into the through hole 75 having the snap-fitting portion 76 provided at the inner edge. When the folding portion 41b is inserted into the inside and the claw portion 76b is no longer in contact with the folding portion 41b, the arm portion 76a is deformed to restore and the claw portion 76b enters the inner side of the folding portion 41b, and the claw portion 76b is hooked on the folding portion 41b from the right side. In this way, according to this embodiment, the claw portion 76b can be easily hooked on the folding portion 41b by simply inserting the folding portion 41b into the through hole 75. Therefore, the work of installing the bracket 70 on the heat exchanger body 40 can be easily performed.

[0105] As mentioned above, although the embodiment in this disclosure was described, this disclosure is not limited to the structure of each embodiment mentioned above, and the following structure and method can also be adopted.

[0106] The number of partition walls can be one or more, without any particular limitation. The second direction in which the partition wall partitions the interior of the peripheral wall can be a direction that intersects the horizontal direction, without any particular limitation. The second direction can also be a vertical direction. The number of first partition walls can be one or more, without any particular limitation. All partition walls can also be first partition walls.

[0107] The through-portion formed in the first partition wall portion may be one or more than three. In the case where a plurality of first partition wall portions are provided, the plurality of first partition wall portions may also include two or more first partition wall portions whose numbers of formed through-portions are different from each other. The through-portion formed in the first partition wall portion may also be only one of the first through-portion and the second through-portion. Even in this case, the condensation water in the receiving portion can be easily and appropriately discharged through the through-portion, and the condensation water can be suppressed from accumulating in the receiving portion. In the case where a plurality of first partition wall portions are provided, the plurality of first partition wall portions may also include a first partition wall portion only having a first through-portion formed therein, and a first partition wall portion only having a second through-portion formed therein. A plurality of first through-portions may also be formed in one first partition wall portion. A plurality of second through-portions may also be formed in one first partition wall portion. The through-portion formed in the first partition wall portion may also include other through-portions different from the first through-portion and the second through-portion. The shape of the through-portion formed in the first partition wall portion is not particularly limited.

[0108] The folded portion received in the receiving portion through the through hole may be at least partially located in the receiving portion, or may be partially located outside the receiving portion. The bracket may not be in contact with the fin. For example, in the above embodiment, the base 71 may be opposite to the fin 42c located on the leftmost side (-Y side) among the plurality of fins 42 via a gap.

[0109] The engaging portion of the bracket may also be in any shape. The number of engaging portions is not particularly limited. The bracket may not have an engaging portion. The bracket may also be fixed to the heat exchanger body. The shape of the heat exchanger body is not particularly limited. For example, in the above embodiment, the heat exchanger body 40 may not have either the first heat exchange portion 40a or the second heat exchange portion 40b.

[0110] The heat transfer tube of the heat exchanger body may be composed of only one heat transfer tube or a plurality of heat transfer tubes. In the case of a plurality of heat transfer tubes, a plurality of folded portions may be provided one by one on each heat transfer tube.

[0111] The heat exchange unit having the heat exchanger disclosed in the present invention, i.e., the heat exchanger having the through portion formed in the first partition wall portion of the bracket, may also be an outdoor unit of the air conditioner. In the air conditioner disclosed in the present invention, both the indoor unit and the outdoor unit may be heat exchange units having the heat exchanger disclosed in the present invention, or only one of the indoor unit and the outdoor unit may be a heat exchange unit having the heat exchanger disclosed in the present invention. The indoor unit having the heat exchanger disclosed in the present invention may be any type of indoor unit, and may also be a wall-mounted indoor unit or a vertical indoor unit.

[0112] As mentioned above, each structure and each method described in this specification can be combined appropriately within the range which does not contradict each other.

[0113] Description of reference numerals:

[0114] 10…air conditioner; 11…indoor unit (heat exchange unit); 12…outdoor unit; 40…heat exchanger body; 41…heat transfer tube; 41a…extension portion; 41b…turning portion; 42, 42c…fins; 50…air blower; 70…support; 71…base portion; 72…peripheral wall portion; 73…partition wall portion; 73a…first partition wall portion; 73b…second partition wall portion; 73c, 73d…first inclined wall portion; 73e …second inclined wall portion; 74…accommodation portion; 74a…upper accommodation portion (accommodation portion); 75…through hole; 75g…outer hole portion; 76…engaging portion; 76a…arm portion; 76b…claw portion; 78…first through portion; 79…second through portion; 90…heat exchanger; D1…first inclined direction (second direction); D2…second inclined direction (second direction); Y…left-right direction (first direction); Z…vertical direction.

Claims

1. A heat exchanger, which is a heat exchanger provided in an air conditioner, characterized in that: have: a heat exchanger body having a heat transfer tube and a plurality of fins mounted on the heat transfer tube and extending in a first direction intersecting the vertical direction; and a bracket mounted on an end portion of the heat exchanger body on one side in the first direction, The heat transfer tube has: a plurality of extensions extending along the first direction; and a plurality of folded portions connecting the ends of the adjacent extending portions in the first direction to each other; The support has: a base located at one side of the heat exchanger body in the first direction; a peripheral wall portion protruding from an outer peripheral edge portion of the base portion toward one side in the first direction; and at least one partition wall portion that partitions the interior of the peripheral wall portion along a second direction intersecting the horizontal direction, The base, the peripheral wall and the at least one partition wall form a plurality of receiving portions arranged along the second direction. The bases of the plurality of receiving portions are respectively formed with through holes through which the folded portions pass. The inner edge of the through hole is arranged to be away from the folded portion, The at least one partition wall portion comprises a first partition wall portion, The first partition wall portion has at least one through portion formed therein so as to penetrate the first partition wall portion.

2. The heat exchanger according to claim 1, characterized in that The at least one through portion includes a first through portion formed at a portion of the first partition wall portion that overlaps with the fin when viewed along the first direction. The first through portion is formed at an end portion of the first partition wall portion on a side connected to the base portion, and is connected to the through hole.

3. The heat exchanger according to claim 2, characterized in that The first partition wall portion includes a first inclined wall portion extending in a direction located on a lower side in the vertical direction as it approaches the first penetration portion.

4. The heat exchanger according to any one of claims 1 to 3, characterized in that: The at least one through portion includes a second through portion formed in a portion of the first partition wall portion that is located outside the fin when viewed along the first direction, The through hole includes: a through hole having an outer hole portion located outside the fin when viewed along the first direction, The second through portion is formed to be separated from the outer hole portion in the first direction.

5. The heat exchanger according to claim 4, characterized in that The second through portion is formed at an end portion of the first partition wall portion on the opposite side to a side connected to the base portion, and is open to one side in the first direction.

6. The heat exchanger according to claim 4 or 5, characterized in that: The first partition wall portion has a second inclined wall portion extending in a direction located on a lower side in the vertical direction as it approaches the second through portion.

7. The heat exchanger according to any one of claims 1 to 6, characterized in that: A plurality of partition walls are provided at intervals along the second direction, A plurality of first partition walls are provided at intervals along the second direction, The plurality of partition walls include a second partition wall portion located vertically below the plurality of first partition walls. The through portion is formed only in the first partition wall portion among the plurality of partition wall portions.

8. The heat exchanger according to any one of claims 1 to 7, characterized in that: The bracket has a snap-fitting portion connected to the inner edge of the through hole. The engaging portion has: an arm portion extending from an inner edge of the through hole and capable of elastic deformation; and The claw portion is connected to the front end portion of the arm portion and is hooked on the folded portion from the other side of the first direction.

9. A heat exchange unit, characterized in that: have: The heat exchanger according to any one of claims 1 to 8; and A blower delivers air to the heat exchanger.

10. An air conditioner, characterized in that: Equipped with: indoor unit and outdoor unit, At least one of the indoor unit and the outdoor unit is the heat exchange unit according to claim 9.

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