Heat exchanger and method for manufacturing heat exchanger

Abstract

A heat exchanger (1A) is provided with a header (20A), a support member, and an elastic piece (70A). The header (20A) is connected to the heat transfer tube (40), and the refrigerant circulates between the header (20A) and the heat transfer tube (40). The support member carries the header (20A) and supports the header (20A). The elastic piece (70A) is disposed between the header (20A) and the support member, elastically deforms due to the weight of the header (20A), and elastically deforms in response to an impact applied to the header (20A) or the support member.

Description

Technical Field

[0001] This disclosure relates to heat exchangers and methods of manufacturing heat exchangers. Background Technology

[0002] Heat exchangers exist in the following types: manifolds that distribute or collect refrigerant from heat transfer tubes are mounted on supporting components, such as drain pans.

[0003] For example, Patent Document 1 discloses a heat exchanger having a cylindrical manifold and a plurality of drainage guide plates mounted on the manifold and having a plate surface perpendicular to the pipe axis of the manifold and a horizontal lower end, the plurality of drainage guide plates being placed on a drainage tray.

[0004] Existing technical documents

[0005] Patent documents

[0006] Patent Document 1: Japanese Patent Application Publication No. 2010-25462 Summary of the Invention

[0007] The problem that the invention aims to solve

[0008] Sometimes, during manufacturing, manifolds may warp or deform compared to their intended shape due to the effects of gravity, thermal processes, etc. In the heat exchanger described in Patent Document 1, if the manifold warps or deforms, the manifold and the heat exchanger equipped with it become unstable, and the heat exchanger wobbles within the drain pan.

[0009] This disclosure was made to solve the above-mentioned problems, and its purpose is to provide a heat exchanger with a manifold that is not easily shaken.

[0010] Methods for solving problems

[0011] To achieve the above objectives, the heat exchanger of this disclosure includes a manifold, a support member, and an elastic plate. The manifold is connected to a heat transfer tube, allowing refrigerant to flow between the manifold and the heat transfer tube. The support member carries and supports the manifold. The elastic plate is disposed between the manifold and the support member, and elastically deforms due to the weight of the manifold, and also elastically deforms according to impacts applied to the manifold or the support member.

[0012] Invention Effects

[0013] According to the structure of this disclosure, the elastic sheet is disposed between the manifold and the support member, and elastically deforms due to the weight of the manifold, and also elastically deforms according to the impact applied to the manifold or the support member. Therefore, the manifold is not easily shaken relative to the support member. Attached Figure Description

[0014] Figure 1(A) is a front view of the heat exchanger of Embodiment 1 of this disclosure. Figure 1 (B) is the right-side view of the heat exchanger. Figure 1 (C) is a top view of the heat exchanger.

[0015] Figure 2 (A) is a front view of a first modified example of the heat exchanger according to Embodiment 1 of this disclosure. Figure 2 (B) is a right-side view of a first modified example of the heat exchanger. Figure 2 (C) is a top view of the first modified example of the heat exchanger.

[0016] Figure 3 (A) is a front view of a second variation of the heat exchanger according to Embodiment 1 of this disclosure. Figure 3 (B) is a right-side view of a second modified example of the heat exchanger. Figure 3 (C) is a top view of a second variant of the heat exchanger.

[0017] Figure 4 (A) is a front view of a third variation of the heat exchanger according to Embodiment 1 of this disclosure. Figure 4 (B) is the right-side view of the third modified example of the heat exchanger. Figure 4 (C) is a top view of the third variant of the heat exchanger.

[0018] Figure 5 (A) is a front view of a fourth variation of the heat exchanger according to Embodiment 1 of this disclosure. Figure 5 (B) is the right-side view of the fourth modified example of the heat exchanger. Figure 5 (C) is a top view of the fourth variant of the heat exchanger.

[0019] Figure 6 (A) is a front view of a fifth modified example of the heat exchanger according to Embodiment 1 of this disclosure. Figure 6 (B) is the right-side view of the fifth modified example of this heat exchanger. Figure 6 (C) is a top view of the fifth variant of the heat exchanger.

[0020] Figure 7 (A) is a front view of the heat exchanger of Embodiment 2 of this disclosure. Figure 7 (B) is the right-side view of the heat exchanger. Figure 7 (C) is a top view of the heat exchanger.

[0021] Figure 8 (A) is a front view of a first modified example of the heat exchanger according to Embodiment 2 of this disclosure. Figure 8 (B) is a right-side view of a first modified example of the heat exchanger. Figure 8 (C) is a top view of the first modified example of the heat exchanger.

[0022] Figure 9 (A) is a front view of a second modified example of the heat exchanger according to Embodiment 2 of this disclosure. Figure 9 (B) is a right-side view of a second modified example of the heat exchanger. Figure 9 (C) is a top view of a second variant of the heat exchanger.

[0023] Figure 10 (A) is a front view of a third variation of the heat exchanger according to Embodiment 2 of this disclosure. Figure 10 (B) is the right-side view of the third modified example of the heat exchanger. Figure 10 (C) is a top view of the third variant of the heat exchanger.

[0024] Figure 11 (A) is a front view of the heat exchanger of Embodiment 3 of this disclosure. Figure 11 (B) is the right-side view of the heat exchanger. Figure 11 (C) is a top view of the heat exchanger.

[0025] Figure 12 (A) is a front view of a first modified example of the heat exchanger according to Embodiment 3 of this disclosure. Figure 12 (B) is a right-side view of a first modified example of the heat exchanger. Figure 12 (C) is a top view of the first modified example of the heat exchanger.

[0026] Figure 13 (A) is a front view of a second modified example of the heat exchanger according to Embodiment 3 of this disclosure. Figure 13 (B) is a right-side view of a second modified example of the heat exchanger. Figure 13 (C) is a top view of a second variant of the heat exchanger.

[0027] Figure 14 (A) is a front view of the heat exchanger of Embodiment 4 of this disclosure. Figure 14 (B) is the right-side view of the heat exchanger. Figure 14 (C) is a top view of the heat exchanger.

[0028] Figure 15 (A) is a front view of a first modified example of the heat exchanger according to Embodiment 4 of this disclosure. Figure 15 (B) is a right-side view of a first modified example of the heat exchanger. Figure 15 (C) is a top view of the first modified example of the heat exchanger.

[0029] Figure 16(A) is a front view of a second modified example of the heat exchanger according to Embodiment 4 of this disclosure. Figure 16 (B) is a right-side view of a second modified example of the heat exchanger. Figure 16 (C) is a top view of a second variant of the heat exchanger.

[0030] Figure 17 (A) is a front view of a third variation of the heat exchanger according to Embodiment 4 of this disclosure. Figure 17 (B) is the right-side view of the third modified example of the heat exchanger. Figure 17 (C) is a top view of the third variant of the heat exchanger.

[0031] Figure 18 (A) is a front view of a fourth modified example of the heat exchanger according to Embodiment 4 of this disclosure. Figure 18 (B) is the right-side view of the fourth modified example of the heat exchanger. Figure 18 (C) is a top view of the fourth variant of the heat exchanger.

[0032] Figure 19 (A) is a front view of a fifth modified example of the heat exchanger according to Embodiment 4 of this disclosure. Figure 19 (B) is the right-side view of the fifth modified example of this heat exchanger. Figure 19 (C) is a top view of the fifth variant of the heat exchanger.

[0033] Figure 20 (A) is a front view of a sixth modified example of the heat exchanger according to Embodiment 4 of this disclosure. Figure 20 (B) is the right-side view of the sixth modified example of the heat exchanger. Figure 20 (C) is a top view of the sixth variant of the heat exchanger.

[0034] Figure 21 (A) is a front view of a seventh modified example of the heat exchanger according to Embodiment 4 of this disclosure. Figure 21 (B) is the right-side view of the seventh modified example of the heat exchanger. Figure 21 (C) is a top view of the seventh variant of the heat exchanger.

[0035] Figure 22 (A) is a front view of the heat exchanger of Embodiment 5 of this disclosure. Figure 22 (B) is the right-side view of the heat exchanger. Figure 22 (C) is a top view of the heat exchanger.

[0036] Figure 23 (A) is a front view of the heat exchanger of Embodiment 6 of this disclosure. Figure 23 (B) is the right-side view of the heat exchanger. Figure 23 (C) is a top view of the heat exchanger.

[0037] Figure 24 (A) is a front view of a first modified example of the heat exchanger according to Embodiment 6 of this disclosure. Figure 24 (B) is a right-side view of a first modified example of the heat exchanger. Figure 24 (C) is a top view of the first modified example of the heat exchanger.

[0038] Figure 25 (A) is a front view of a second modified example of the heat exchanger according to Embodiment 6 of this disclosure. Figure 25 (B) is a right-side view of a second modified example of the heat exchanger. Figure 25 (C) is a top view of a second variant of the heat exchanger.

[0039] Figure 26 (A) is a front view of a third variation of the heat exchanger according to Embodiment 6 of this disclosure. Figure 26 (B) is the right-side view of the third modified example of the heat exchanger. Figure 26 (C) is a top view of the third variant of the heat exchanger.

[0040] Figure 27 (A) is a front view of a fourth modified example of the heat exchanger according to Embodiment 6 of this disclosure. Figure 27 (B) is the right-side view of the fourth modified example of the heat exchanger. Figure 27 (C) is a top view of the fourth variant of the heat exchanger.

[0041] Figure 28 (A) is a front view of a fifth modified example of the heat exchanger according to Embodiment 6 of this disclosure. Figure 28 (B) is the right-side view of the fifth modified example of this heat exchanger. Figure 28 (C) is a top view of the fifth variant of the heat exchanger. Detailed Implementation

[0042] Hereinafter, a heat exchanger and a method for manufacturing a heat exchanger according to embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. Furthermore, in the drawings, identical or equivalent parts are labeled with the same reference numerals. Additionally, in the orthogonal coordinate system XYZ shown in the drawings, the direction in which the tube axes of the plurality of heat transfer tubes included in the heat exchanger extend is defined as the vertical direction, and the direction in which these heat transfer tubes are arranged is defined as the horizontal direction. The vertical direction is the Z-axis, the horizontal direction is the X-axis, and the direction orthogonal to the Z-axis and X-axis is the Y-axis. This coordinate system will be appropriately referenced in the following description.

[0043] (Implementation Method 1)

[0044] In embodiment 1, to prevent the manifold from shaking and to suppress deformation caused by the impact of the heat exchanger itself, an elastic sheet is laid below the manifold. (See reference...) Figure 1 (A)- Figure 1 Section (C) describes the structure of the heat exchanger.

[0045] Figure 1 (A) is a front view of the heat exchanger 1A of embodiment 1. Figure 1 (B) is the right-side view of heat exchanger 1A. Figure 1 (C) is a top view of heat exchanger 1A. Furthermore, Figure 1 (A)- Figure 1 For ease of understanding, the individual shapes of the fins 50 are not shown in (C), but rather the general shape of the fins 50 as a whole is shown. Additionally, end caps are provided at the right ends of the manifolds 10 and 20A, but... Figure 1 (B) omits the end cap for ease of understanding. This will be discussed later. Figures 2-22 The same applies to China.

[0046] like Figure 1 As shown in (A), the heat exchanger 1A includes: two manifolds 10 and 20A positioned vertically opposite each other; a plurality of heat transfer tubes 40 through which refrigerant distributed or collected by the manifolds 10 and 20A flows; and a plurality of fins 50 that release heat from the heat transfer tubes 40 to the surrounding air.

[0047] like Figure 1 (A) and Figure 1 As shown in (B), manifolds 10 and 20A are respectively formed in a cylindrical shape with the cylindrical axis facing left and right. End caps (not shown) are inserted into the left and right ends of manifolds 10 and 20A. Refrigerant is supplied to manifolds 10 and 20A or discharged from external equipment by connecting refrigerant pipes (not shown) to these end caps.

[0048] Additionally, although not shown in the diagram, flow paths are formed inside manifolds 10 and 20A to facilitate refrigerant flow. Furthermore, as... Figure 1 (A) and Figure 1 As shown in (B), manifolds 10 and 20A are positioned opposite each other in a vertically separated state. To allow refrigerant flow, multiple heat transfer tubes 40 are connected to manifolds 10 and 20A.

[0049] To improve heat transfer performance, heat transfer tubes 40 are made of metals with high heat transfer properties, such as pure aluminum and aluminum alloys. Furthermore, to further improve heat transfer performance, such as... Figure 1 As shown in (C), the heat transfer tubes 40 each have a flat tube shape. Furthermore, as... Figure 1As shown in (A), the heat transfer tubes 40 are respectively configured with their tube axes pointing vertically. Furthermore, the upper and lower ends of each heat transfer tube 40 are inserted into (not shown) insertion ports of the upper manifold 10 and the lower manifold 20A. Thus, the flow path inside the heat transfer tube 40 is connected to the flow paths inside the manifolds 10 and 20A. As a result, refrigerant from the manifolds 10 and 20A flows through the heat transfer tube 40, and heat from the refrigerant is transferred to the heat transfer tube 40.

[0050] In addition, to improve heat exchange efficiency, a plurality of heat transfer tubes 40 are provided in the heat exchanger 1A. Moreover, the heat transfer tubes 40 are arranged at a fixed interval in the left-right direction. Between the heat transfer tubes 40, fins 50 are provided to efficiently dissipate the heat transferred to the heat transfer tubes 40 into the air, but their detailed shape and configuration are not shown.

[0051] To improve heat dissipation, the fins 50, like the heat transfer tubes 40, are made of a metal with high thermal conductivity. Furthermore, to further enhance heat dissipation, the fins 50 have a shape where the plate is bent into a corrugated form, though this is not shown. Moreover, the fins 50 are held between the heat transfer tubes 40 with the corrugated portion continuously oriented vertically. Thus, heat is transferred from the heat transfer tubes 40 to the fins 50, and the fins 50 exchange heat with the surrounding air.

[0052] Such a heat exchanger 1A is used, for example, in the casing of the outdoor unit of an air conditioner. However, when the heat exchanger 1A is directly installed in the casing, it sometimes becomes unstable due to warping or deformation of the manifold 20A compared to its intended shape during manufacturing, caused by factors such as gravity and thermal history. Therefore, in order to install the manifold 20A in a stable state in the casing, such as... Figure 1 (A)- Figure 1 As shown in (C), the heat exchanger 1A includes a support plate 60 for mounting the manifold 20A and a plurality of elastic sheets 70A disposed between the support plate 60 and the manifold 20A.

[0053] The support plate 60 is made of metal or resin. It is a rectangular plate. The support plate 60 is positioned with its surface facing the bottom plate of the outdoor unit housing (not shown). The support plate 60 is fixed to the bottom plate of the housing by passing bolts, screws, or other fasteners through through holes (not shown). Multiple elastic tabs 70A are disposed on the support plate 60.

[0054] The elastic sheet 70A is formed of rubber or synthetic resin. Therefore, the elastic sheet 70A can elastically deform. Furthermore, to prevent positional displacement, the elastic sheet 70A is mounted to the support plate 60 using an adhesive (not shown), double-sided tape, or fastening device. Additionally, as... Figure 1 (A) and Figure 1As shown in (B), a manifold 20A is mounted on the elastic sheet 70A. As a result, the elastic sheet 70A is less likely to shift position when subjected to an impact from the support plate 60. Furthermore, even when subjected to such an impact, the elastic sheet 70A will elastically deform and absorb the impact. Consequently, the impact is less likely to be transmitted to the manifold 20A. Thus, the elastic sheet 70A functions as a buffer.

[0055] Furthermore, the elastic sheet 70A has a rectangular sheet shape. Its thickness is such that, even when the manifold 20A is mounted and elastically deformed due to its weight, it can still elastically deform even with further applied force. This is because, with such a thickness, even if the manifold 20A warps or deforms, the elastic sheet 70A can still make integral contact with the mounted portion of the manifold 20A and support the entire assembly. Moreover, as... Figure 1 As shown in (A), a plurality of elastic plates 70A are arranged separately from each other in the direction of the cylindrical axis in which the manifold 20A extends. Thus, the plurality of elastic plates 70A equally support the entire manifold 20A. As a result, the manifold 20A is less prone to wobbling on the support plate 60 and is stable on the support plate 60.

[0056] In addition, Figure 1 In (A), the elastic sheets 70A are arranged at different intervals, but the elastic sheets 70A can also be arranged at equal intervals. Furthermore, the thickness, width, and length of the elastic sheets 70A can also differ from one another. Similarly, the hardness of the elastic sheets 70A can also differ from one another. Additionally, the aforementioned support plate 60 is an example of a support member described in this disclosure.

[0057] As described above, in the heat exchanger 1A of Embodiment 1, the elastic sheet 70A is disposed between the manifold 20A and the support plate 60. It elastically deforms due to the weight of the manifold 20A and also elastically deforms according to impacts applied to the manifold 20A or the support plate 60. Therefore, the manifold 20A is less prone to wobbling relative to the support plate 60. Furthermore, in the heat exchanger 1A, even if an impact is applied to the support plate 60, the impact is not easily transmitted to the manifold 20A.

[0058] Furthermore, even if the manifold 20A warps or deforms, it can be stably mounted on the support plate 60. Additionally, the manifold 20A is not prone to wobbling. As a result, for example, even if the heat exchanger 1A vibrates vertically during transport, the elastic sheet 70A absorbs the vibration, thus maintaining the manifold 20A stable on the support plate 60. Moreover, the stability of the manifold 20A on the support plate 60 reduces the likelihood of impacts on the joints between the manifold 20A and other components, such as the joint between the manifold 20A and the heat transfer pipe 40, thereby improving the reliability of the heat exchanger 1A.

[0059] Furthermore, the heat exchanger 1A can be manufactured by the following steps: (1) fabricating manifolds 10 and 20A on which heat transfer tubes 40 and fins 50 are mounted; and (2) between manifold 20A and support plate 60 in these manifolds 10 and 20A, an elastic sheet 70A capable of elastic deformation according to an impact applied to manifold 20A or support plate 60 is disposed. In the step of disposing of the elastic sheet 70A, manifold 20A can be positioned above support plate 60, thereby utilizing the weight of manifold 20A to elastically deform the elastic sheet 70A, so that manifold 20A is supported on support plate 60.

[0060] (First variation of heat exchanger 1A)

[0061] In Embodiment 1, the manifold 20A is cylindrical. However, the manifold 20A is not limited to this. As long as the manifold 20A is connected to the heat transfer pipe 40 and allows refrigerant to flow between the manifold 20A and the heat transfer pipe 40, the shape is arbitrary as long as this condition is met.

[0062] Figure 2 (A) is a front view of a first modified example of the heat exchanger 1A of Embodiment 1. Figure 2 (B) is the right-side view of a first modified example of heat exchanger 1A. Figure 2 (C) is a top view of a first modified example of heat exchanger 1A.

[0063] like Figure 2 (A)- Figure 2 As shown in (C), manifold 20A can also be square tubular. More specifically, as... Figure 2 As shown in (B), the manifold 20A can also be a square tube with a square cross-section. This is because, even with this shape, the manifold 20A can be prevented from shaking by placing an elastic sheet 70A between the manifold 20A and the support plate 60.

[0064] (Second and third modifications of heat exchanger 1A)

[0065] Furthermore, in Embodiment 1, the manifold 20A extends in a straight line. However, the manifold 20A is not limited to this. The shape of the manifold 20A is arbitrary as long as the above conditions are met; for example, it can also be warped.

[0066] Figure 3 (A) is a front view of a second variant of the heat exchanger 1A of Embodiment 1. Figure 3 (B) is a right-side view of a second variant of heat exchanger 1A. Figure 3 (C) is a top view of a second modified example of heat exchanger 1A. Figure 4 (A) is the front view of the third modified example of heat exchanger 1A. Figure 4(B) is the right-side view of the third variant of heat exchanger 1A. Figure 4 (C) is a top view of the third modified example of heat exchanger 1A.

[0067] like Figure 3 (A)- Figure 3 As shown in (C), the manifold 20A can also be warped in the vertical direction. For example, the manifold 20A can also be warped upwards into a convex shape. In this case, an elastic sheet 71A, thicker than the gap from the support plate 60, can be elastically deformed at the portion P1 of the manifold 20A that is warped upwards into a convex shape and furthest from the support plate 60. Alternatively, although not shown, multiple elastic sheets 70A can be stacked to a thickness greater than the gap from the portion P1 to the support plate 60. This is because such a configuration can prevent the manifold 20A from wobbling.

[0068] In addition, such as Figure 4 (A)- Figure 4 As shown in (C), the manifold 20A can also be warped downwards into a convex shape. In this case, an elastic sheet 72A, thicker than the gap from that portion P2 to the support plate 60, can be disposed at the portion P2 of the manifold 20A that is closest to the support plate 60 due to the warping of the manifold 20A. Moreover, the elastic sheet 72A can elastically deform to block the gap and support the manifold 20A.

[0069] Furthermore, the elastic sheets 70A that support the two ends of the manifold 20A can also be formed by stacking multiple elastic sheets that are thinner than the elastic sheet 70A, such as elastic sheet 72A.

[0070] (Fourth and fifth modifications of heat exchanger 1A)

[0071] Furthermore, in Embodiment 1, the three elastic plates 70A are arranged separately from each other in the cylindrical axial direction of the manifold 20A, resulting in the three elastic plates 70A equally supporting the entire manifold 20A. However, the arrangement and number of elastic plates 70A are not limited thereto.

[0072] Figure 5 (A) is a front view of the fourth modified example of the heat exchanger 1A of Embodiment 1. Figure 5 (B) is the right-side view of the fourth modified example of heat exchanger 1A. Figure 5 (C) is a top view of the fourth modified example of heat exchanger 1A. Figure 6 (A) is the front view of the fifth modified example of heat exchanger 1A. Figure 6 (B) is the right-side view of the fifth variant of heat exchanger 1A. Figure 6 (C) is a top view of the fifth modified example of heat exchanger 1A.

[0073] like Figure 5(A)- Figure 5 As shown in (C), the manifold 20A may also include: an elastic sheet 70A that supports both ends of the manifold 20A along its cylindrical axis, i.e., the +X end and -X end of the manifold 20A respectively; and an elastic sheet 73A, which is thinner than the elastic sheet 70A, and is disposed below the center of the manifold 20A in the X direction. In this case, the elastic sheet 73A may also have a gap with the manifold 20A. Moreover, the elastic sheet 73A can also contact the manifold 20A to absorb the impact of downward impacts on the heat exchanger 1A, such as during earthquakes or vibrations during transport.

[0074] like Figure 6 (A)- Figure 6 As shown in (C), multiple elastic sheets 73A can also be provided. If this is the case, then... Figure 5 (A)- Figure 5 Similarly, in the fourth variation shown in (C), when an impact is applied downward to the heat exchanger 1A, it can contact the manifold 20A and absorb the impact of the manifold 20A.

[0075] (Implementation Method 2)

[0076] In Embodiment 1, the manifold 20A is cylindrical and formed from a single component. However, the manifold 20A is not limited to this. As described above, the manifold 20A only needs to be connected to the heat transfer tube 40 and allow refrigerant to flow between the manifold 20A and the heat transfer tube 40. As long as this condition is met, it can also be formed by combining multiple components.

[0077] In the heat exchanger 1B of Embodiment 2, the manifold 20B is formed by combining two components. Hereinafter, refer to... Figure 7 (A)- Figure 7 (C) will now describe the heat exchanger 1B of Embodiment 2. In Embodiment 2, the description will focus on a structure that differs from that of Embodiment 1.

[0078] Figure 7 (A) is a front view of heat exchanger 1B in embodiment 2. Figure 7 (B) is the right-side view of heat exchanger 1B. Figure 7 (C) is a top view of heat exchanger 1B.

[0079] like Figure 7 (A)- Figure 7 As shown in (C), manifold 20B has: a lower part 21L having a groove 214; and an upper part 21U covering the lower part 21L.

[0080] like Figure 7As shown in (B), the lower component 21L is shaped like a U-shaped opening facing upwards when viewed from the side. Specifically, the lower component 21L has: a sidewall portion 211 that extends linearly in the vertical direction (Z direction) when viewed from the side; a sidewall portion 212 that extends linearly in the Z direction and is opposite to the sidewall portion 211 in the longitudinal direction (Y direction); and a bottom portion 213 that bends in the -Z direction while extending in the Y direction, connecting the -Z ends of the sidewall portions 211 and 212 to each other. Thus, the sidewall portions 211 and 212 and the bottom portion 213 form an internal space open on the +Z side, i.e., a groove 214. Furthermore, although not shown, the groove 214 functions as a flow path.

[0081] In contrast, such as Figure 7 As shown in (B), the upper component 21U is formed into a U-shape with the opening facing downwards when viewed from the side, and covers the lower component 21L. Specifically, the upper component 21U has: a sidewall portion 215 that extends linearly in the Z direction when viewed from the side and contacts the +Y surface (outer wall surface) of the sidewall portion 211 of the lower component 21L; a sidewall portion 216 that extends linearly in the Z direction and contacts the -Y surface (outer wall surface) of the sidewall portion 212 of the lower component 21L; and an upper surface portion 217 that bends in the +Z direction while extending in the Y direction and connects the +Z ends of the sidewall portions 215 and 216 to each other. Furthermore, although not shown, the sidewall portions 215 and 216 are welded to the sidewall portions 211 and 212 at the locations where they contact the sidewall portions 211 and 212 of the lower component 21L.

[0082] The upper component 21U, by having such a structure, covers the lower component 21L from above, closing the opening of the slot 214. Additionally, as... Figure 7 (A) and Figure 7 As shown in (B), the sidewall portions 215 and 216 of the upper component 21U extend in the X direction, thereby covering the entire groove 214 that extends in the same direction. Thus, the upper component 21U and the lower component 21L together form a tube that allows refrigerant to flow and has an elongated cross-section.

[0083] Thus, manifold 20B is formed by combining the lower component 21L and the upper component 21U. Similar to manifold 20A described in Embodiment 1, wobbling sometimes occurs on the +Z side of the support plate 60 in the case of manifold 20B. Therefore, in manifold 20B, the bottom 213 of the lower component 21L, located closest to the -Z side, is placed on the +Z surface of the elastic sheet 70B. This prevents wobbling of manifold 20B. Furthermore, since manifold 20B is supported by the elastic sheet 70B, impacts are less likely to be transmitted to manifold 20B.

[0084] Furthermore, the sidewall portions 211 and 212 of the lower component 21L described above are examples of the first and second sidewall portions mentioned in this disclosure. The -Z ends of the sidewall portions 211 and 212 are examples of the lower ends of the first and second sidewall portions mentioned in this disclosure. Additionally, the sidewall portions 215 and 216 of the upper component 21U are examples of the third and fourth sidewall portions mentioned in this disclosure. The +Z ends of the sidewall portions 215 and 216 are examples of the upper ends of the third and fourth sidewall portions mentioned in this disclosure. Furthermore, the upper surface portion 217 is an example of the first upper surface portion mentioned in this disclosure.

[0085] As described above, in the heat exchanger 1B of Embodiment 2, the bottom 213 of the lower component 21L is supported by an elastic sheet 70B. Therefore, even though the manifold 20B is formed by combining the upper component 21U and the lower component 21L, it is not easy to wobble. In addition, impacts are not easily transmitted to the manifold 20B.

[0086] (First variation of heat exchanger 1B)

[0087] In embodiment 2, the upper surface 217 of the upper member 21U and the bottom 213 of the lower member 21L of the manifold 20B are bent. As a result, the manifold 20B has an oblong shape in cross-section. However, the manifold 20B is not limited to this. The manifold 20B can also be square tubular.

[0088] Figure 8 (A) is a front view of a first modified example of the heat exchanger 1B in Embodiment 2. Figure 8 (B) is a right-side view of a first modified example of heat exchanger 1B. Figure 8 (C) is a top view of a first modified example of heat exchanger 1B.

[0089] like Figure 8 (A)- Figure 8 As shown in (C), in the manifold 20B, the upper surface 217 of the upper member 21U and the bottom 213 of the lower member 21L can extend linearly in the Y direction and be parallel to the XY plane when viewed from the side. As a result, the upper member 21U can also be a rectangular box shape that extends elongated in the X direction and is open on the -Z side. Similarly, the lower member 21L can also be a rectangular box shape that extends elongated in the X direction and is open on the +Z side. Moreover, by making the upper member 21U and the lower member 21L in such shapes, the manifold 20B can also be a rectangular tube shape. This is because, even with such a shape, the swaying of the manifold 20B can be prevented by placing an elastic sheet 70B between the manifold 20B and the support plate 60.

[0090] (Second and third modifications of heat exchanger 1B)

[0091] In addition, the manifold 20B of Embodiment 2 can also be warped in the same way as that described in Embodiment 1.

[0092] Figure 9 (A) is a front view of a second modified example of the heat exchanger 1B in Embodiment 2. Figure 9 (B) is a right-side view of a second variant of heat exchanger 1B. Figure 9 (C) is a top view of a second modified example of heat exchanger 1B. Figure 10 (A) is the front view of the third modified example of heat exchanger 1B. Figure 10 (B) is the right-side view of the third variant of heat exchanger 1B. Figure 10 (C) is a top view of the third variant of heat exchanger 1B.

[0093] like Figure 9 (A)- Figure 9 As shown in (C), manifold 20B can also be warped in the Z direction. For example, manifold 20B can also be warped into a convex shape towards the +Z side, similar to manifold 20A described in the second variation of embodiment 1. In this case, also similar to manifold 20A in the second variation, a resilient sheet 71B thicker than the gap from this portion P1 to the support plate 60 can be arranged in part P1 of manifold 20B, or, although not shown, multiple resilient sheets 70A can be stacked. This is because, with such a configuration, shaking of manifold 20B can be prevented.

[0094] In addition, such as Figure 10 (A)- Figure 10 As shown in (C), the manifold 20B can also be warped downwards into a convex shape, similar to the manifold 20A described in the third variation of Embodiment 1. In this case, also similar to the manifold 20A in the third variation, an elastic sheet 72B thicker than the gap from that portion P2 to the support plate 60 can be disposed in part P2. Moreover, the elastic sheet 72A can elastically deform to block the gap and support the manifold 20B.

[0095] Furthermore, similar to the third variation of Embodiment 1, the elastic sheets 70B that support the two ends of the manifold 20B can also be formed by stacking multiple elastic sheets, such as elastic sheets 72B, that are thinner than the elastic sheet 70B.

[0096] (Implementation Method 3)

[0097] In embodiment 2, the upper component 21U of the manifold 20B covers the entire lower component 21L from the +Z side, but the upper component 21U may also block only the groove 214 of the lower component 21L.

[0098] In the heat exchanger 1C of Embodiment 3, the upper component 22U of the manifold 20C covers the groove 224 of the lower component 22L. Hereinafter, refer to... Figure 11 (A)- Figure 11 (C) will be used to describe the heat exchanger 1C of Embodiment 3. In Embodiment 3, the description will focus on the structure that differs from that of Embodiments 1 and 2.

[0099] Figure 11 (A) is a front view of the heat exchanger 1C of embodiment 3. Figure 11 (B) is a right-side view of heat exchanger 1C. Figure 11 (C) is a top view of heat exchanger 1C.

[0100] like Figure 11 (A)- Figure 11 As shown in (C), in heat exchanger 1C, the depth of the lower component 22L in the front-to-back direction, i.e., the depth in the Y direction, is longer than the depth of the lower component 21L in the Y direction of heat exchanger 1B in Embodiment 2. Furthermore, the height of the lower component 22L in the vertical direction, i.e., the height in the Z direction, is greater than the height of the lower component 21L in the Z direction of Embodiment 2. In summary, as... Figure 11 As shown in (B), the sidewall portions 221, 222, and bottom portion 223 of the lower component 22L are larger than those of the lower component 21L of the heat exchanger 1B by a fixed ratio. As a result, the lower component 22L is larger than the lower component 21L of the heat exchanger 1B when viewed from the side.

[0101] In contrast, in the upper component 22U, the sidewall portion 225 extends linearly in the Z direction along the inner wall of the sidewall portion 221 of the lower component 22L. Furthermore, the sidewall portion 226 extends linearly in the Z direction along the inner wall of the sidewall portion 222 of the lower component 22L, which is opposite to the inner wall of the sidewall portion 221. Moreover, the sidewall portions 225 and 226 of the upper component 22U are opposite each other in the Y direction and extend from the inside of the groove 224 outwards to the same Z height. The +Z ends of the sidewall portions 225 and 226 are connected to each other by an upper surface portion 227 that bends in the +Z direction. Additionally, the sidewall portions 225 and 226 are welded to the outer wall surfaces of the sidewall portions 221 and 222 of the lower component 22L at locations where they contact the outer wall surfaces.

[0102] The upper component 22U closes the opening of the groove 224 of the lower component 22L by having such a structure. Thus, the upper component 22U and the lower component 22L form a tube that is oblong in cross-section.

[0103] In manifold 20C, the upper component 21U only blocks the groove 224 of the lower component 21L. However, in this structure, manifold 20C sometimes wobbles on the +Z side of the support plate 60. Therefore, to prevent this wobbling, the bottom 223 of the lower component 22L, located closest to the -Z side in manifold 20B, is placed on the +Z surface of the elastic sheet 70C. This prevents wobbling of manifold 20C and also prevents the transmission of impacts from the support plate 60 to manifold 20B.

[0104] Furthermore, the sidewall portions 221 and 222 of the lower component 22L described above are examples of the first and second sidewall portions mentioned in this disclosure. The -Z ends of the sidewall portions 221 and 222 are examples of the lower ends of the first and second sidewall portions mentioned in this disclosure. Additionally, the sidewall portions 225 and 226 of the upper component 22U are examples of the fifth and sixth sidewall portions mentioned in this disclosure. The +Z ends of the sidewall portions 225 and 226 are examples of the upper ends of the fifth and sixth sidewall portions mentioned in this disclosure. Furthermore, the upper surface portion 227 is an example of the second upper surface portion mentioned in this disclosure.

[0105] As described above, in the heat exchanger 1C of Embodiment 3, similarly to Embodiment 2, the bottom 223 of the lower component 22L is supported by an elastic sheet 70C. Therefore, even if the manifold 20C is in a configuration where the upper component 21U is embedded in the groove 224 of the lower component 21L, blocking the opening of the groove 224, it is not prone to shaking. In addition, impacts are not easily transmitted to the manifold 20C.

[0106] (First and second modifications of heat exchanger 1C)

[0107] In addition, the manifold 20C of Embodiment 3 can also be warped in the same way as those described in Embodiments 1 and 2.

[0108] Figure 12 (A) is a front view of a first modified example of the heat exchanger 1C of Embodiment 3. Figure 12 (B) is a right-side view of a first modified example of heat exchanger 1C. Figure 12 (C) is a top view of a first modified example of heat exchanger 1C. Figure 13 (A) is a front view of a second modified example of heat exchanger 1C. Figure 13 (B) is a right-side view of a second variant of heat exchanger 1C. Figure 13 (C) is a top view of a second variant of heat exchanger 1C.

[0109] like Figure 12 (A)- Figure 12As shown in (C), the manifold 20C can also be warped in the Z direction. For example, the manifold 20C can also be warped into a convex shape in the +Z side, similar to the manifolds 20A and 20B described in the second variations of embodiments 1 and 2. In this case, also similar to the second variations of embodiments 1 and 2, a resilient sheet 71C thicker than the gap from that portion P1 to the support plate 60 can be arranged in part P1 of the manifold 20C, or, although not shown, multiple resilient sheets 70C can be stacked. This is because, with such a configuration, shaking of the manifold 20C can be prevented.

[0110] like Figure 13 (A)- Figure 13 As shown in (C), the manifolds 20A and 20B described in the third modifications of embodiments 1 and 2 can also be warped downwards into a convex shape. In this case, similar to the manifolds 20A and 20B in the third modification, an elastic sheet 72C thicker than the gap from that portion P2 to the support plate 60 can be disposed in part P2. The elastic sheet 72C elastically deforms and blocks the gap to support the manifold 20C.

[0111] Furthermore, similar to the third variation of embodiments 1 and 2, the elastic sheets 70C supporting the two ends of the manifold 20C can also be formed by stacking multiple elastic sheets, such as elastic sheets 72C, that are thinner than the elastic sheet 70C.

[0112] (Implementation Method 4)

[0113] In Embodiment 2, the upper component 21U of the manifold 20B covers the lower component 21L, and the sidewall portions 215 and 216 of the upper component 21U are welded to the sidewall portions 211 and 212 of the lower component 21L. In Embodiment 3, the upper component 22U of the manifold 20C is fitted into the groove 224 of the lower component 22L, and the sidewall portions 225 and 226 of the upper component 22U are welded to the sidewall portions 221 and 222 of the lower component 22L. However, the manifolds 20B and 20C are not limited to these embodiments. The upper components 21U and 22U can also be joined to the lower components 21L and 22L by methods other than welding.

[0114] In the heat exchanger 1D of Embodiment 4, the upper component 23U of the manifold 20D is joined to the lower component 23L via claws 31 and 32. Hereinafter, refer to... Figure 14 (A)- Figure 14 (C) will now describe the heat exchanger 1D of Embodiment 4. In Embodiment 4, the description will focus on a structure that differs from that of Embodiments 1-3.

[0115] Figure 14(A) is a front view of the heat exchanger 1D of embodiment 4. Figure 14 (B) is the right-side view of heat exchanger 1D. Figure 14 (C) is a top view of heat exchanger 1D.

[0116] In addition, for ease of understanding, Figure 14 (A) displays the lengths of claws 31 and 32 as the same in the main view, but in reality, claw 31 is longer in the main view and claw 32 is shorter.

[0117] like Figure 14 (A)- Figure 14 As shown in (C), in the manifold 20D, the upper component 23U has claws 31 and 32 for fixing the lower component 23L to itself.

[0118] like Figure 14 As shown in (B), in the manifold 20D, the upper surface portion 237 of the upper member 23U is longer than the bottom portion 233 of the lower member 23L in the Y direction. As a result, similar to the case in Embodiment 2, when viewed from the side, the upper member 23U covers the lower member 23L. Furthermore, the sidewall portions 235 and 236 of the upper member 23U contact the outer wall surfaces of the sidewall portions 231 and 232 of the lower member 23L. Claw portions 31 and 32 are respectively provided at the -Z ends of the sidewall portions 235 and 236 of the upper member 23U.

[0119] The claw portion 31 has a shape in which a quadrangular prism bends along the bottom 233 of the lower member 23L. On the other hand, the claw portion 32 has a shape in which a quadrangular prism extends straight in the -Z direction. The claw portion 31 of the claw portions 31 and 32 has such a shape that the upper member 23U fixes the lower member 23L to itself while covering the lower member 23L.

[0120] In addition, such as Figure 14 (A) and Figure 14 As shown in (B), the sidewall portions 235 and 236 of the upper component 23U extend in the direction of the groove 234, that is, in the X direction of the sidewall portions 231 and 232 of the lower component 23L. Claw portions 31 and 32 are alternately arranged along this X direction at the lower ends of such sidewall portions 235 and 236. Thus, claw portion 31 of claw portions 31 and 32 fixes the lower component 23L to the upper component 23U entirely throughout the X direction, that is, throughout the direction of the groove 234. In the upper component 23U, based on the welding described in embodiments 2 and 3, the claw portion 31 fixes the lower component 23L to the upper component 23U, therefore the bonding strength with the lower component 23L is high.

[0121] As described above, the claw 31 bends along the bottom 233 of the lower part 23L. As a result, as... Figure 14 As shown in (B), the -Z end portion of the claw 31 is located on the -Z side closer to the bottom 233. Furthermore, as described above, the claw 32 extends straight in the -Z direction. As a result, the -Z end portion of the claw 32 protrudes on the -Z side closer to the bottom 233. Because the -Z end portions of the claws 31 and 32 are located in such a position, the manifold 20D is prone to wobbling if placed on the support plate 60. Therefore, the -Z ends of the claws 31 and 32 are placed on the elastic sheet 70D. This prevents wobbling in the manifold 20D, and also reduces the transmission of impacts from the support plate 60.

[0122] Furthermore, the claw portions 31 and 32 provided on the side wall portion 235 of the upper component 23U are examples of the first claw portions described in this disclosure. The claw portions 31 and 32 provided on the side wall portion 236 of the upper component 23U are examples of the second claw portions described in this disclosure.

[0123] As described above, in the heat exchanger 1D of Embodiment 4, the claws 31 and 32 of the upper component 23U are supported by the elastic sheet 70D. Therefore, even if the manifold 20D is in a configuration where the claws 31 and 32 protrude towards the -Z side from the bottom 233 of the lower component 22L, it is not easy for it to wobble. In addition, impacts are not easily transmitted to the manifold 20D.

[0124] (First variation of heat exchanger 1D)

[0125] In embodiments 2-4, the upper component 23U of the manifold 20D in embodiment 4 has claw portions 31 and 32, but the upper components 21U and 22U of the manifolds 20B and 20C in embodiments 2 and 3 do not have claw portions 31 and 32. Thus, the claw portions 31 and 32 have arbitrary structures. As a result, whether the claw portions 31 and 32 are bent or straight is also arbitrary.

[0126] Figure 15 (A) is a front view of a first modified example of the heat exchanger 1D in Embodiment 4. Figure 15 (B) is the right-side view of the first modified example of heat exchanger 1D. Figure 15 (C) is a top view of a first modified example of heat exchanger 1D.

[0127] like Figure 15 (A)- Figure 15As shown in (C), the sidewall portions 235 and 236 of the upper component 23U may each have the claw portion 31 described in Embodiment 4, but not the claw portion 32 described in Embodiment 4. As a result, in the upper component 23U, all claw portions 31 may be bent along the bottom 233 of the lower component 23L. In this case, it is sufficient to arrange the elastic sheet 70D on the -Z side of the claw portion 31. This prevents wobbling, and the impact from the support plate 60 is not easily transmitted.

[0128] (Second variation of heat exchanger 1D)

[0129] In addition, in embodiment 4, manifold 20D can also be warped.

[0130] Figure 16 (A) is a front view of a second variant of the heat exchanger 1D in Embodiment 4. Figure 16 (B) is the right-side view of a second variant of heat exchanger 1D. Figure 16 (C) is a top view of a second variant of heat exchanger 1D.

[0131] like Figure 16 (A)- Figure 16 As shown in (C), a portion of the claw 31 of the upper member 23U may be bent more than the other claws 31, resulting in the -Z-side of the manifold 20D warping upwards. In this case, the convex warping towards the upper part of the manifold 20D results in the placement of an elastic sheet 71D thicker than the gap from the support plate 60 at the portion P3 furthest from the support plate 60, or, although not shown, multiple elastic sheets 70D may be stacked.

[0132] (Third variation of heat exchanger 1D)

[0133] In a second variation of the heat exchanger 1D, a thick elastic sheet 71D is provided in the aforementioned portion P3, but the heat exchanger 1D is not limited to this.

[0134] Figure 17 (A) is a front view of a third variant of the heat exchanger 1D of embodiment 4. Figure 17 (B) is the right-side view of the third variant of heat exchanger 1D. Figure 17 (C) is a top view of a second variant of heat exchanger 1D.

[0135] like Figure 17 (A)- Figure 17As shown in (C), an elastic sheet 73D that is thinner than the gap from that portion P3 to the support plate 60 can also be disposed in the aforementioned portion P3 of the manifold 20D. In this case, the elastic sheet 73D can also contact the manifold 20A and absorb the impact of the manifold 20A when downward impacts are applied to the heat exchanger 1A during earthquakes, vibrations during transport, etc.

[0136] Furthermore, the elastic sheets 70D that support the two ends of the manifold 20D can also be formed by stacking multiple elastic sheets that are thinner than the elastic sheet 70D, such as elastic sheets 73D.

[0137] (Fourth variation of heat exchanger 1D)

[0138] Furthermore, the lengths of the claws 31 and 32 provided on the upper component 23U are arbitrary.

[0139] Figure 18 (A) is a front view of the fourth variant of the heat exchanger 1D of Embodiment 4. Figure 18 (B) is the right-side view of the fourth variant of heat exchanger 1D. Figure 18 (C) is a top view of the fourth variant of heat exchanger 1D.

[0140] like Figure 18 (A)- Figure 18 As shown in (C), the upper component 23U may also include the claw portion 31 described in embodiment 4 and a claw portion 33 that is shorter in length than the claw portions 31 and 32. In this case, as Figure 18 As shown in (A), claws 31 can also be arranged between each other in an arrangement of multiple claws 33 continuously arranged in the X direction. Claws 33 differ from claws 31 in that they are too short to bend along the bottom 233 of the lower member 23L, and therefore do not protrude in the -Z direction like claws 31. Due to this shape, the arrangement of multiple claws 33 continuously arranged in the X direction can be placed on the elastic sheet 70D. In this case, claws 31 are not placed on the elastic sheet 70D, resulting in a gap between the -Z end of claw 31 and the support plate 60. That is, it is preferable that claws 31 do not contact the support plate 60.

[0141] (Fifth variation of heat exchanger 1D)

[0142] In embodiment 4, the claw portions 31 and 32 are mounted on the elastic sheet 70D. However, the portion mounted on the elastic sheet 70D is not limited to this. The elastic sheet 70D only needs to be disposed between the manifold 20D and the support plate 60, and be able to elastically deform due to the weight of the manifold 20D and elastically deform according to the impact applied to the manifold 20D or the support plate 60. As long as this condition is met, it is arbitrary which portion of the manifold 20D is mounted on the elastic sheet 70D.

[0143] Figure 19 (A) is a front view of the fifth variant of the heat exchanger 1D of Embodiment 4. Figure 19 (B) is the right-side view of the fifth variant of heat exchanger 1D. Figure 19 (C) is a top view of the fifth variant of heat exchanger 1D.

[0144] like Figure 19 (A)- Figure 19 As shown in (C), elastic sheets 70D can also be arranged between the claws 31 in the X direction where the claws 31 are arranged. In this case, as Figure 19 As shown in (B), the bottom 233 of the lower component 23L can be placed on the elastic sheet 70D. In this case, as... Figure 19 As shown in (A), the claw portion 31 preferably does not contact the support plate 60, and a gap may exist between the -Z end of the claw portion 31 and the support plate 60.

[0145] (Sixth and seventh modifications of heat exchanger 1D)

[0146] Alternatively, the claw portion, which extends straight in the -Z direction without bending, can be placed on the elastic sheet 70D.

[0147] Figure 20 (A) is a front view of the sixth variant of the heat exchanger 1D of Embodiment 4. Figure 20 (B) is the right-side view of the sixth variant of heat exchanger 1D. Figure 20 (C) is a top view of the sixth variant of heat exchanger 1D.

[0148] like Figure 20 (A)- Figure 20 As shown in (C), the upper component 23U may also include the claw portion 31 described in Embodiment 4 and a claw portion 34 that is longer than the claw portion 32 described in Embodiment 4 and extends straight in the -Z direction. In this case, the claw portion 34 protrudes in the -Z direction than the claw portion 31, so only the claw portion 34 can be placed on the elastic sheet 70D.

[0149] and, Figure 21 (A) is a front view of the seventh variant of the heat exchanger 1D of Embodiment 4. Figure 21 (B) is the right-side view of the seventh variant of heat exchanger 1D. Figure 21 (C) is a top view of the seventh variant of heat exchanger 1D.

[0150] like Figure 21 (A)- Figure 21As shown in (C), the upper component 23U may also have only a claw 34 that is longer than the claw 32 described in embodiment 4 and extends straight in the -Z direction. In this case, the claw 34 protrudes in the -Z direction from the bottom 233 of the lower component 23L, so the claw 34 can be placed on the elastic sheet 70D.

[0151] (Implementation Method 5)

[0152] In the heat exchanger 1D of embodiment 4, claws 31 and 32 are provided on the upper part 23U that covers the entire lower part 23L. However, if the upper part 23U is fitted into the groove 234 of the lower part 23L, claws 31 and 32 may also be provided on the lower part 23L.

[0153] In the heat exchanger 1E of embodiment 5, the lower component 24L of the manifold 20E has a claw 35 for fixing the upper component 24U to itself. Hereinafter, refer to... Figure 22 (A)- Figure 22 (C) will now describe the heat exchanger 1E of Embodiment 5. In Embodiment 5, the description will focus on a structure that differs from that of Embodiments 1-4.

[0154] Figure 22 (A) is a front view of the heat exchanger 1E of embodiment 5. Figure 22 (B) is the right-side view of heat exchanger 1E. Figure 22 (C) is a top view of heat exchanger 1E.

[0155] like Figure 22 As shown in (B), in the manifold 20E, the bottom 243 of the lower member 24L is longer in the Y direction than the upper surface 247 of the upper member 24U, resulting in a larger groove 244 in the Y direction for the lower member 24L. Consequently, similar to Embodiment 3, the upper member 24U fits into the groove 244 of the lower member 24L. Furthermore, the fitting of the upper member 24U into the groove 244 of the lower member 24L results in the contact between the sidewall portions 245 and 246 of the upper member 24U and the inner wall surfaces of the sidewall portions 241 and 242 of the lower member 24L. Claw portions 35 are respectively provided at the +Z ends of the sidewall portions 241 and 242 of the lower member 24L in this configuration.

[0156] like Figure 22 (A)- Figure 22 As shown in (C), the claw portion 35 has a shape that extends in the +Z direction as a quadrangular prism. Figure 22 (A)- Figure 22In (C), for simplicity, it is not explicitly stated, but the claw portion 35 extends in the +Z direction along the sidewall portions 245 and 246 of the upper member 24U and then bends along the upper surface portion 247. Moreover, the claw portion 35 is welded to the sidewall portions 245 and 246 and the upper surface portion 247. Thus, the claw portion 35 fixes the upper member 24U to the lower member 24L.

[0157] In the manifold 20E, the bottom 243 of the lower component 24L may warp or dent, causing occasional wobbling when placed on the support plate 60. Therefore, an elastic sheet 70E is provided between the bottom 243 of the lower component 24L and the support plate 60. In the manifold 20E, the bottom 243 of the lower component 24L is supported by the elastic sheet 70E, thus preventing wobbling. Furthermore, impacts from the support plate 60 are less likely to be transmitted.

[0158] Furthermore, the claw portion 35 provided on the side wall portion 241 of the lower component 24L is an example of the third claw portion described in this disclosure. The claw portion 35 provided on the side wall portion 242 of the lower component 24L is an example of the fourth claw portion described in this disclosure.

[0159] As described above, in the heat exchanger 1E of Embodiment 5, the bottom 243 of the lower component 24L is supported by an elastic sheet 70E. Therefore, even if the lower component 24L is engaged with the upper component 24U via the claw portion 35 of the sidewall portion 241, the manifold 20E is not easily shaken. In addition, impacts are not easily transmitted to the manifold 20E.

[0160] (Implementation Method 6)

[0161] In the heat exchangers 1A-1E of embodiments 1-5, one manifold 10 is connected to one manifold 20A-20E. However, the heat exchangers 1A-1E are not limited to this. In the heat exchangers 1A-1E, the manifolds 10 and 20A-20E can be any structure that is connected to the heat transfer pipe 40 and allows the refrigerant to flow between the manifolds 10 and 20A-20E and the heat transfer pipe 40. Therefore, the number and shape of the manifolds 10 and 20A-20E are arbitrary as long as this condition is met.

[0162] In the heat exchanger 1F of Embodiment 6, two manifolds 20A described in Embodiment 1 are connected to a manifold 10 via a plurality of heat transfer pipes 40. Hereinafter, refer to... Figure 23 (A)- Figure 23 (C) will now describe the heat exchanger 1F of Embodiment 6. In Embodiment 6, the description will focus on the structure that differs from that of Embodiments 1-5.

[0163] Figure 23 (A) is a front view of the heat exchanger 1F of embodiment 6. Figure 23(B) is the right-side view of heat exchanger 1F. Figure 23 (C) is a top view of heat exchanger 1F.

[0164] like Figure 23 (A)- Figure 23 As shown in (C), the heat exchanger 1F includes: a manifold 10 disposed above; two manifolds 20A disposed below the manifold 10 and opposite to the manifold 10; and a plurality of elastic plates 70F disposed above the support plate 60 and supporting the two manifolds 20A.

[0165] The manifold 10 is formed to be wider than the manifold 10 described in embodiments 1-5. That is, in embodiment 6, the width of the manifold 10 in the Y direction is wider than the manifold 10 described in embodiments 1-5. On the other hand, in the heat exchanger 1F, as... Figure 23 As shown in (C), heat transfer tubes 40 extending in the Z direction are arranged in a row in the X direction. Furthermore, there are two rows of heat transfer tubes 40 in the Y direction. The upper ends of these two rows of heat transfer tubes 40 are connected to the manifold 10.

[0166] In contrast, each of the two manifolds 20A has the same structure as the manifold 20A described in Embodiment 1. Furthermore, the manifolds 20A, like in Embodiment 1, have their cylindrical shafts oriented in the X direction. However, unlike in Embodiment 1, the manifolds 20A have their cylindrical shafts parallel to each other and are arranged separately in the Y direction. The distance between the manifolds 20A in the Y direction is the same as the distance between the rows of heat transfer tubes in the Y direction. Moreover, each manifold 20A is connected to the lower end of the heat transfer tubes 40 forming each row. Thus, refrigerant can flow from one manifold 20A, i.e., the +Y side manifold 20A, through the heat transfer tubes 40 and manifold 10 to the other manifold 20A, i.e., the -Y side manifold 20A. As a result, the heat exchanger 1F has improved heat exchange performance compared to the heat exchanger 1A of Embodiment 1. To prevent the manifolds 20A from swaying on the support plate 60, a plurality of elastic plates 70F are provided below the two manifolds 20A. Specifically, it is equipped with four elastic sheets 70F.

[0167] The elastic sheets 70F are each formed of the same material as the elastic sheet 70A described in Embodiment 1. Furthermore, the elastic sheets 70F are each formed into a rectangular shape that is longer and thinner than the elastic sheet 70A, and they have the same thickness. Additionally, the length direction of each elastic sheet 70F is oriented towards the Y direction. Furthermore, the elastic sheets 70F are arranged along the X direction. As a result, the multiple elastic sheets 70F collectively support the two manifolds 20A, preventing the manifolds 20A from swaying.

[0168] In addition, Figure 23 (A)- Figure 23In (C), four elastic plates 70F are provided. The elastic plates 70F supporting the +X and -X ends of the manifold 20A have a larger width, while the two elastic plates 70F supporting the center in the X direction have a smaller width. Elastic plates 70F of this width can be arranged at intervals that ensure even load distribution on the manifold 20A. Alternatively, the elastic plates 70F can also have the same width in the X direction and be arranged at equal intervals.

[0169] Furthermore, one of the two manifolds 20A is used to allow refrigerant in a gaseous state to flow, which is an example of the first manifold described in this disclosure. The other of the two manifolds 20A is used to allow refrigerant in a liquid state or a gas-liquid state to flow, which is an example of the second manifold described in this disclosure.

[0170] (First variant of heat exchanger 1F)

[0171] In the heat exchanger 1F of embodiment 6, the elastic sheets 70F are all the same thickness, but the thickness of each elastic sheet 70F may also be partially different.

[0172] Figure 24 (A) is the front view of the first modified example of heat exchanger 1F. Figure 24 (B) is the right-side view of the first modified example of heat exchanger 1F. Figure 24 (C) is a top view of a first modified example of heat exchanger 1F.

[0173] like Figure 24 (A)- Figure 24 As shown in (C), an elastic sheet 73F, thinner than the elastic sheet 70F, can also be disposed between a portion of the elastic sheets 70A among the multiple elastic sheets 70F. More specifically, an elastic sheet 73F, thinner than the elastic sheet 70F and having a gap between it and the manifold 20A, can also be disposed between the elastic sheets 70F that support the +X and -X ends of the manifold 20A, respectively. Furthermore, the elastic sheet 73F can also contact the manifold 20A to absorb the impact of downward impacts on the heat exchanger 1F, such as during earthquakes or vibrations during transport.

[0174] Furthermore, the thickness of the elastic sheet 73F can be thinner than that of the elastic sheet 70F when it is placed on the manifold 20A and compressed by the manifold 20A. Thus, the elastic sheet 73F can absorb the impact of the manifold 20A only when it comes into contact with the manifold 20A downwards.

[0175] (Second and third modifications of heat exchanger 1F)

[0176] The heat exchanger 1F in Embodiment 6 includes two manifolds 20A as described in Embodiment 1. However, the heat exchanger 1F is not limited to this.

[0177] Figure 25 (A) is the front view of a second modified example of heat exchanger 1F. Figure 25 (B) is a right-side view of a second modified example of heat exchanger 1F. Figure 25 (C) is a top view of a second modified example of heat exchanger 1F.

[0178] like Figure 25 (A)- Figure 25 As shown in (C), the heat exchanger 1F can also have two manifolds 20B as described in Embodiment 2 instead of two manifolds 20A. This is because, even in this configuration, refrigerant can still circulate and perform heat exchange in the same way as in the case with two manifolds 20A. Moreover, in this configuration, the heat exchanger 1F can also have an elastic sheet 70F. As a result, the heat exchanger 1F can absorb the impact applied to the manifolds 20B and prevent the manifolds 20B from shaking.

[0179] Figure 26 (A) is the front view of the third modified example of heat exchanger 1F. Figure 26 (B) is the right-side view of the third modified example of heat exchanger 1F. Figure 26 (C) is a top view of the third modified example of heat exchanger 1F.

[0180] And, as Figure 26 (A)- Figure 26 As shown in (C), the heat exchanger 1F may also have two manifolds 20D as described in the first variation of embodiment 4 instead of two manifolds 20A. In this case, the elastic sheet 70F may also support both ends and the center of the manifold 20A in the extension direction, that is, the +X end, the -X end and the center of the X direction in the X direction. Moreover, the width of the elastic sheet 70F supporting the center of the manifold 20A in the X direction may be smaller than that of the elastic sheet 70F supporting the +X end and the -X end of the manifold 20A.

[0181] also, Figure 26 (A)- Figure 26 The manifold 20D shown in (C) has a claw portion 31, but it may also have a claw portion 32 in addition to the claw portion 31. That is, the manifold 20D may also be replaced by the manifold 20D with claw portions 31 and 32 described in Embodiment 4. In this case, the claw portion 32 may also be bent in the same way as the claw portion 31.

[0182] (Fourth and fifth modifications of heat exchanger 1F)

[0183] Furthermore, in the third variation of the heat exchanger 1F, it is sufficient to provide one or more elastic plates 70F, and it is not limited to providing four elastic plates 70F.

[0184] Figure 27 (A) is the front view of the fourth modified example of heat exchanger 1F. Figure 27 (B) is the right-side view of the fourth modified example of heat exchanger 1F. Figure 27 (C) is a top view of the fourth variant of heat exchanger 1F.

[0185] like Figure 27 (A)- Figure 27 As shown in (C), the elastic sheet 70F can also support the +X end and -X end of the manifold 20A.

[0186] Figure 28 (A) is the front view of the fifth modified example of heat exchanger 1F. Figure 28 (B) is the right-side view of the fifth modified example of heat exchanger 1F. Figure 28 (C) is a top view of the fifth variant of heat exchanger 1F.

[0187] like Figure 28 (A)- Figure 28 As shown in (C), the heat exchanger 1F may also include an elastic sheet 73F that is thinner than the elastic sheet 70F, in addition to the elastic sheet 70F. In short, the heat exchanger 1F may also use the elastic sheet 73F described in the first modification of the heat exchanger 1F. In detail, as described in the first modification of the heat exchanger 1F, in the heat exchanger 1F, an elastic sheet 73F that is thinner than the elastic sheet 70F and has a gap with the manifold 20A may be arranged between the elastic sheets 70F that support the +X end and -X end of the manifold 20D, respectively.

[0188] The heat exchangers 1A-1F and the manufacturing method of the heat exchangers 1A-1F according to the embodiments of the present disclosure have been described above, but the heat exchangers 1A-1F and the manufacturing method of the heat exchangers 1A-1F are not limited thereto.

[0189] For example, in embodiments 1-6, the support plate 60 is a rectangular plate. However, the support plate 60 is not limited to a plate. The support plate 60 can be any component that holds and supports the manifold, i.e., a support component. For example, the support plate 60 can also be replaced by a box that is open on the top and can collect condensate. In addition, the support plate 60 can also be replaced by the housing of the outdoor unit of the air conditioner.

[0190] Furthermore, in embodiments 1-6, the elastic sheets 70A-70F are rectangular in shape; however, the elastic sheets 70A-70F are not limited to this. The elastic sheets 70A-70F only need to be disposed between the manifolds 20A-20E and the support plate 60 (i.e., the support member), and be able to elastically deform due to the weight of the manifolds 20A-20E, and elastically deform according to impacts applied to the manifolds 20A-20E or the support member. The shape of the elastic sheets 70A-70E is arbitrary as long as this condition is met. For example, the elastic sheets 70A-70E can also be a shape similar to the top view shape of the manifolds 20A-20E, such as a strip. Alternatively, the elastic sheets 70A-70E can also be oblong, polygonal, or other shapes.

[0191] Furthermore, the thickness of the elastic sheets 70A-70E is arbitrary as long as the above conditions are met. Additionally, the number of sheets is also arbitrary, provided the above conditions are met.

[0192] As described above, the heat exchangers 1A-1F and the manufacturing method of the heat exchangers 1A-1F are not limited to the embodiments described above, and various modifications and replacements can be applied. Hereinafter, various aspects of this disclosure are described as appendices.

[0193] (Postscript 1)

[0194] A heat exchanger comprising:

[0195] At least one manifold is connected to a heat transfer tube, and refrigerant flows between the at least one manifold and the heat transfer tube;

[0196] Support member, which carries and supports the manifold; and

[0197] An elastic sheet, disposed between the manifold and the support member, elastically deforms due to the weight of the manifold and elastically deforms according to an impact applied to the manifold or the support member.

[0198] (Postscript 2)

[0199] According to the heat exchanger described in Appendix 1, wherein,

[0200] The heat transfer tube extends in a vertical direction.

[0201] The manifold is cylindrical, with the cylinder axis oriented horizontally.

[0202] (Note 3)

[0203] According to the heat exchanger described in Appendix 1 or 2, wherein,

[0204] The at least one manifold has: a first manifold for allowing refrigerant in a gaseous state to flow; and a second manifold for allowing refrigerant in a liquid state or a gas-liquid state to flow.

[0205] (Note 4)

[0206] According to any one of Appendices 1 to 3, in the heat exchanger, wherein,

[0207] The manifold has:

[0208] The lower component has a first sidewall portion, a second sidewall portion opposite to the first sidewall portion, and a bottom portion connecting the lower ends of the first sidewall portion and the second sidewall portion, wherein the first sidewall portion, the second sidewall portion, and the bottom portion form an open internal space above; and

[0209] The upper component, which is connected to the heat transfer tube, covers the internal space.

[0210] (Note 5)

[0211] According to the heat exchanger described in Appendix 4, wherein...

[0212] The upper component has:

[0213] A first upper surface portion covers the first sidewall portion and the second sidewall portion from above;

[0214] The third sidewall portion extends downward from the end of the first upper surface portion located on the side of the first sidewall portion and contacts the outer wall surface of the first sidewall portion; and

[0215] The fourth sidewall portion extends downward from the end of the first upper surface portion located on the side of the second sidewall portion and contacts the outer wall surface of the second sidewall portion.

[0216] At least one of the lower end of the third sidewall portion, the lower end of the fourth sidewall portion, and the bottom portion is placed on the elastic sheet.

[0217] (Note 6)

[0218] According to the heat exchanger described in Appendix 5, wherein...

[0219] The third sidewall portion extends in a direction perpendicular to both the first and second sidewall portions and the vertical direction, and has a plurality of first claw portions at its lower end. These first claw portions extend downward from the lower end of the third sidewall portion and are arranged in the vertical direction.

[0220] The fourth sidewall extends in a direction perpendicular to both the first and second sidewalls and the vertical direction, and has a plurality of second claws at its lower end. The plurality of second claws extend downward from the lower end of the fourth sidewall and are arranged in the vertical direction.

[0221] (Note 7)

[0222] According to the heat exchanger described in Appendix 6, wherein...

[0223] At least one of the plurality of first claw portions bends along the bottom after the first sidewall portion.

[0224] At least one of the plurality of second claw portions bends along the bottom after along the second sidewall portion.

[0225] (Note 8)

[0226] According to the heat exchanger described in Appendix 6, wherein...

[0227] At least one of the plurality of first claw portions has a shape that extends to a position below the first sidewall portion.

[0228] At least one of the plurality of second claw portions has a shape that extends to a position below the first sidewall portion.

[0229] (Note 9)

[0230] According to the heat exchanger described in Appendix 7 or 8, wherein,

[0231] The lower ends of the plurality of first claws are placed on the elastic sheet.

[0232] The lower ends of the plurality of second claws are placed on the elastic sheet.

[0233] (Postscript 10)

[0234] According to the heat exchanger described in Appendix 7 or 8, wherein,

[0235] The bottom is placed on the elastic sheet.

[0236] The plurality of first claw portions are not placed on the elastic sheet, and there is a space between the lower ends of the plurality of first claw portions and the supporting member.

[0237] The plurality of second claws are not placed on the elastic sheet, and there is a space between the lower end portion of the plurality of second claws and the support member.

[0238] (Postscript 11)

[0239] According to the heat exchanger described in Appendix 7 or 8, wherein,

[0240] A portion of the plurality of first claw portions is mounted on the elastic sheet.

[0241] The remaining portions of the plurality of first claw portions are not placed on the elastic sheet, and there is a space between the lower end of the remaining portions of the plurality of first claw portions and the support member.

[0242] A portion of the plurality of second claws is mounted on the elastic sheet.

[0243] The remaining portions of the plurality of second claws are not placed on the elastic sheet, and there is a space between the lower end portion of the remaining portions of the plurality of second claws and the support member.

[0244] (Postscript 12)

[0245] According to any one of Appendices 4 to 11, in the heat exchanger, wherein,

[0246] The upper component has:

[0247] The fifth sidewall portion is in contact with the inner wall surface of the first sidewall portion;

[0248] The sixth sidewall portion contacts the inner wall surface of the second sidewall portion; and

[0249] The second upper surface portion connects the upper end of the fifth sidewall portion and the upper end of the sixth sidewall portion.

[0250] The bottom is placed on the elastic sheet.

[0251] (Postscript 13)

[0252] According to the heat exchanger described in Appendix 12, wherein,

[0253] The first sidewall portion extends in a direction perpendicular to both the first and second sidewall portions and the vertical direction, and has a plurality of third claw portions at its upper end. These third claw portions extend upward from the upper end of the first sidewall portion and are arranged in the vertical direction.

[0254] The second sidewall extends along the vertical direction and has a plurality of fourth claw portions at the upper end, the plurality of fourth claw portions extending upward from the upper end of the second sidewall and arranged along the vertical direction.

[0255] (Postscript 14)

[0256] According to the heat exchanger described in Appendix 13, wherein...

[0257] At least one of the plurality of third claw portions bends along the fifth sidewall portion and then along the second upper surface portion.

[0258] At least one of the plurality of fourth claw portions bends along the sixth sidewall portion and then along the second upper surface portion.

[0259] (Postscript 15)

[0260] According to any one of Appendices 1 to 14, in the heat exchanger, wherein,

[0261] The manifold is either round or square.

[0262] (Postscript 16)

[0263] A method for manufacturing a heat exchanger includes the following steps:

[0264] An elastic sheet capable of elastic deformation according to an impact applied to the manifold or the support component is disposed between the manifold and the support component. The weight of the manifold causes the elastic sheet to elastically deform, thereby supporting the manifold on the support component. The manifold is connected to a heat transfer tube, and refrigerant flows between the manifold and the heat transfer tube.

[0265] Various embodiments and modifications can be made to this disclosure without departing from its broad spirit and scope. Furthermore, the above-described embodiments are illustrative of this disclosure and do not limit its scope. That is, the scope of this disclosure is not shown by the embodiments, but by the claims. Moreover, various modifications implemented within the scope of the claims and their equivalents are considered to be within the scope of this disclosure.

[0266] This application is based on Japanese Patent Application No. 2023-60444, filed on April 3, 2023. The description, claims, and drawings of Japanese Patent Application No. 2023-60444 are incorporated herein by reference in their entirety.

[0267] Label Explanation

[0268] 1A-1F: Heat exchanger; 10, 20A-20E: Manifold; 21U, 22U, 23U, 24U: Upper component; 21L, 22L, 23L, 24L: Lower component; 31-35: Claw; 40: Heat transfer tube; 50: Fin; 60: Support plate; 70A, 70B, 70C, 70D, 70E, 70F, 71A, 71B, 71C, 71D, 72A, 72B, 72C, 73A, 73D, 73F: Elastic sheet; 211, 212: Side wall; 21 3: Bottom; 214: Groove; 215, 216: Sidewall portion; 217: Upper surface portion; 221, 222: Sidewall portion; 223: Bottom; 224: Groove; 225, 226: Sidewall portion; 227: Upper surface portion; 231, 232: Sidewall portion; 233: Bottom; 234: Groove; 235, 236: Sidewall portion; 237: Upper surface portion; 241, 242: Sidewall portion; 243: Bottom; 244: Groove; 245, 246: Sidewall portion; 247: Upper surface portion; P1-P3: Parts.

Claims

1. A heat exchanger comprising: At least one manifold is connected to a heat transfer tube, and refrigerant flows between the at least one manifold and the heat transfer tube; Support member, which carries and supports the manifold; and An elastic sheet, disposed between the manifold and the support member, elastically deforms due to the weight of the manifold and elastically deforms according to an impact applied to the manifold or the support member.

2. The heat exchanger according to claim 1, wherein, The heat transfer tube extends in a vertical direction. The manifold is cylindrical, with the cylinder axis oriented horizontally.

3. The heat exchanger according to claim 1 or 2, wherein, The at least one manifold includes: a first manifold for allowing refrigerant in a gaseous state to flow; and a second manifold for allowing refrigerant in a liquid state or a gas-liquid state to flow.

4. The heat exchanger according to any one of claims 1 to 3, wherein, The manifold has: The lower component has a first sidewall portion, a second sidewall portion opposite to the first sidewall portion, and a bottom portion connecting the lower ends of the first sidewall portion and the second sidewall portion, wherein the first sidewall portion, the second sidewall portion, and the bottom portion form an open internal space above; and The upper component, which is connected to the heat transfer tube, covers the internal space.

5. The heat exchanger according to claim 4, wherein, The upper component has: A first upper surface portion covers the first sidewall portion and the second sidewall portion from above; The third sidewall portion extends downward from the end of the first upper surface portion located on the side of the first sidewall portion and contacts the outer wall surface of the first sidewall portion; as well as The fourth sidewall portion extends downward from the end of the first upper surface portion located on the side of the second sidewall portion and contacts the outer wall surface of the second sidewall portion. At least one of the lower end of the third sidewall portion, the lower end of the fourth sidewall portion, and the bottom portion is placed on the elastic sheet.

6. The heat exchanger according to claim 5, wherein, The third sidewall portion extends in a direction perpendicular to both the first and second sidewall portions and the vertical direction, and has a plurality of first claw portions at its lower end. These first claw portions extend downward from the lower end of the third sidewall portion and are arranged in the vertical direction. The fourth sidewall extends in a direction perpendicular to both the first and second sidewalls and the vertical direction, and has a plurality of second claws at its lower end. The plurality of second claws extend downward from the lower end of the fourth sidewall and are arranged in the vertical direction.

7. The heat exchanger according to claim 6, wherein, At least one of the plurality of first claw portions bends along the bottom after the first sidewall portion. At least one of the plurality of second claw portions bends along the bottom after along the second sidewall portion.

8. The heat exchanger according to claim 6, wherein, At least one of the plurality of first claw portions has a shape that extends to a position below the first sidewall portion. At least one of the plurality of second claw portions has a shape that extends to a position below the first sidewall portion.

9. The heat exchanger according to claim 7 or 8, wherein, The lower ends of the plurality of first claws are placed on the elastic sheet. The lower ends of the plurality of second claws are placed on the elastic sheet.

10. The heat exchanger according to claim 7 or 8, wherein, The bottom is placed on the elastic sheet. The plurality of first claw portions are not placed on the elastic sheet, and there is a space between the lower ends of the plurality of first claw portions and the supporting member. The plurality of second claws are not placed on the elastic sheet, and there is a space between the lower end portion of the plurality of second claws and the support member.

11. The heat exchanger according to claim 7 or 8, wherein, A portion of the plurality of first claw portions is mounted on the elastic sheet. The remaining portions of the plurality of first claw portions are not placed on the elastic sheet, and there is a space between the lower end of the remaining portions of the plurality of first claw portions and the support member. A portion of the plurality of second claws is mounted on the elastic sheet. The remaining portions of the plurality of second claws are not placed on the elastic sheet, and there is a space between the lower end portion of the remaining portions of the plurality of second claws and the support member.

12. The heat exchanger according to any one of claims 4 to 11, wherein, The upper component has: The fifth sidewall portion is in contact with the inner wall surface of the first sidewall portion; The sixth sidewall portion contacts the inner wall surface of the second sidewall portion; and The second upper surface portion connects the upper end of the fifth sidewall portion and the upper end of the sixth sidewall portion. The bottom is placed on the elastic sheet.

13. The heat exchanger according to claim 12, wherein, The first sidewall portion extends in a direction perpendicular to both the first and second sidewall portions and the vertical direction, and has a plurality of third claw portions at its upper end. These third claw portions extend upward from the upper end of the first sidewall portion and are arranged in the vertical direction. The second sidewall extends along the vertical direction and has a plurality of fourth claw portions at the upper end, the plurality of fourth claw portions extending upward from the upper end of the second sidewall and arranged along the vertical direction.

14. The heat exchanger according to claim 13, wherein, At least one of the plurality of third claw portions bends along the fifth sidewall portion and then along the second upper surface portion. At least one of the plurality of fourth claw portions bends along the sixth sidewall portion and then along the second upper surface portion.

15. The heat exchanger according to any one of claims 1 to 14, wherein, The manifold is either round or square.

16. A method for manufacturing a heat exchanger, comprising the following steps: An elastic sheet capable of elastic deformation in response to impacts applied to the manifold or the support component is disposed between the manifold and the support component. The weight of the manifold causes the elastic sheet to elastically deform, thereby supporting the manifold on the support component. The manifold is connected to the heat transfer tube, and the refrigerant flows between the manifold and the heat transfer tube.

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