Cooling panel

Abstract

To provide a cooling panel which can remove frost easily while achieving more uniform cooling.SOLUTION: A cooling panel includes: a cooling pipe 30 which extends as if to meander, and in which a refrigerant passes; a plate material 41 which includes an inner surface 41i on which the cooling pipe 30 is installed and an outer surface which is the rear surface of the inner surface 41i exposed to the outside, and which has a heat transmissive property; and heat transmissive heat transmission adhesive tapes 21-27 each of which has an adhesive surface on one side, and each of which fixes the cooling pipe 30 to the inner surface 41i by covering the cooling pipe 30 installed on the inner surface 41i in a state where the adhesive surface is adhered to the cooling pipe 30 and the inner surface 41i.SELECTED DRAWING: Figure 5

Description

[Technical field]

[0001] The present invention relates to a cooling panel. [Background technology]

[0002] For example, the freezer described in Patent Document 1 includes a plurality of cooling panels arranged on a partition plate such that cooling pipes are exposed inside the freezer (see FIG. 5 of Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Registered Utility Model No. 3175631 Summary of the Invention [Problem to be solved by the invention]

[0004] In the cooling panel described in Patent Document 1, the cooling pipes are exposed to the outside, making it difficult to remove frost that has formed on the cooling panel and difficult to achieve uniform cooling across the surface of the cooling panel.

[0005] The present invention has been made in consideration of the above-mentioned circumstances, and has an object to provide a cooling panel that can easily remove frost while achieving more uniform cooling. [Means for solving the problem]

[0006] In order to achieve the above-mentioned object, the cooling panel of the present invention comprises a cooling pipe that extends in a serpentine manner and through which a refrigerant passes, an inner surface on which the cooling pipe is installed and an outer surface which is the reverse surface of the inner surface exposed to the outside, and a heat-conductive plate material; and a heat-conductive adhesive tape that has an adhesive surface on at least one side and fixes the cooling pipe to the inner surface by covering the cooling pipe installed on the inner surface with the adhesive surface adhering to the cooling pipe and the inner surface.

[0007] The heat-transfer adhesive tape may be configured to cover the entire area of ​​the cooling pipe installed on the inner surface, and to bring the cooling pipe into line contact with the inner surface.

[0008] In addition, the cooling pipe may include a plurality of straight sections extending in a first direction among first and second directions perpendicular to each other and arranged in the second direction, and a plurality of curved sections connecting ends of the plurality of straight sections in the first direction to configure the cooling pipe to extend in a sinusoidal wave, and the cooling panel may include a first heat transfer adhesive tape that is the heat transfer adhesive tape extending in the second direction so as to straddle the plurality of curved sections, and a second heat transfer adhesive tape that is the heat transfer adhesive tape different from the first heat transfer adhesive tape that extends in the first direction on top of the plurality of straight sections.

[0009] The cooling panel may also include a second plate material that sandwiches the cooling pipe between the first plate material, a holding member that holds the first plate material and the second plate material as a panel unit with the cooling pipe sandwiched between them, and a hanging support mechanism that suspends the panel unit in a direction intersecting with the ceiling surface.

[0010] In addition, the hanging support mechanism may include an axis portion fixed to the ceiling surface and extending in a direction intersecting the ceiling surface, and a panel holding portion fixed on the axis of the axis portion and holding the panel unit, and the cooling panel may be fixed to the end of the axis portion opposite the ceiling surface and include a condensation receiving portion for receiving condensation falling from the panel unit.

[0011] In addition, the condensation receiving portion may include a condensation receiving main body portion that receives condensation falling from the panel unit, and an insulating portion that covers the entire outer surface of the condensation receiving main body portion and has higher insulating properties than the condensation receiving main body portion. Effect of the Invention

[0012] According to the present invention, frost can be easily removed while providing more uniform cooling. [Brief description of the drawings]

[0013] [Figure 1] 1 is a schematic diagram of a refrigerator according to an embodiment of the present invention. [Diagram 2] 1 is a front view of a ceiling-suspended cooling panel according to an embodiment of the present invention; [Diagram 3] FIG. 3 is a cross-sectional view taken along line III-III in FIG. [Figure 4] 1 is a diagram showing a state in which a cooling pipe is temporarily fixed to an inner surface of a plate material with a heat-transfer adhesive tape according to an embodiment of the present invention. FIG. [Diagram 5] 1 is a diagram showing a state in which a cooling pipe is fixed to an inner surface of a plate material by a heat-transfer adhesive tape according to an embodiment of the present invention. FIG. [Figure 6] FIG. 1 is a cross-sectional view of a wall-mounted cooling panel according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0014] A refrigerator including a cooling panel according to one embodiment of the present invention will be described with reference to the drawings. 1, the refrigerator 1 has a storage space 1s large enough for a person to enter. Food F, which is an example of an object to be cooled, is stored in the storage space 1s, and can be carried in and out through a door (not shown).

[0015] The refrigerator 1 includes a ceiling surface 1a from which a plurality of cooling panels 10 are suspended, and a wall surface 1b to which a plurality of cooling panels 110 are attached.

[0016] (10 hanging cooling panels) The cooling panels 10 are hung vertically from the ceiling surface 1a and arranged parallel to each other, and are aligned in a row in the surface direction of the cooling panels 10 (the direction perpendicular to the paper surface of FIG. 1).

[0017] As shown in FIGS. 2 and 3, the cooling panel 10 includes a panel unit 11, a plurality of suspension support mechanisms 50 that support the panel unit 11 by suspending it, and a condensation receiving portion 60 that receives condensation dropping from the panel unit 11. The panel unit 11 includes a cooling pipe 30, plate members 41, 42, spacers 46L, 46R, 46U, 46D, a fastening portion 45, holding frame portions 47a to 47f, and heat-transfer adhesive tapes 21 to 27 (see FIG. 5). In the following description, the Y direction is defined as the height direction and longitudinal direction of the cooling panel 10, the X direction is defined as the lateral direction of the cooling panel 10, and the Z direction is defined as the thickness direction of the cooling panel 10.

[0018] (Plates 41, 42) 2 and 3, the plate materials 41, 42 face each other so as to sandwich the cooling pipe 30. The plate materials 41, 42 are formed of a metal having thermal conductivity, for example, aluminum. The plate materials 41, 42 each have a rectangular plate shape, and in this example, a rectangular plate shape that is long in the X direction. By forming the plate materials 41, 42 from aluminum, which is a material having a higher thermal conductivity than stainless steel, for example, the coldness of the cooling pipe 30 is easily transmitted to the entire area of ​​the plate materials 41, 42, and the cooling effect of the cooling panel 10 can be improved.

[0019] The spacers 46L, 46R, 46U, and 46D are positioned between the plate materials 41 and 42, and keep the distance between the plate materials 41 and 42 equal to or greater than the outer diameter of the cooling pipe 30. In addition, the spacers 46L, 46R, 46U, and 46D prevent cool air from being released to the outside through the gaps between the plate materials 41 and 42. 2, the spacer 46L extends in the Y direction along the left end of the panel unit 11. The spacer 46R extends in the Y direction along the right end of the panel unit 11. The spacer 46U extends in the X direction along the upper end of the panel unit 11. The spacer 46D extends in the X direction along the lower end of the panel unit 11. The spacers 46L, 46R, and 46D are each made of a metal material with a U-shaped cross section. The spacer 46U is made of a cushioning material such as urethane or sponge and has a rectangular cross section. Because the spacer 46U is made of a cushioning material, damage to the cooling pipe 30 is suppressed even if the spacer 46U comes into contact with the cooling pipe 30.

[0020] 2, the fastening portion 45 fixes the plate materials 41, 42 in a state in which the cooling pipe 30 is sandwiched between them. The fastening portion 45 is located at the center of the surface direction (XY plane direction) of the plate materials 41, 42, and is formed of a screw or a rivet penetrating the plate materials 41, 42. As shown in FIG. 3, the cooling pipe 30 is held in contact with the inner surface 41i of the plate material 41 by heat-transfer adhesive tapes 21-27 (see FIG. 5), and is separated from the inner surface 42i of the plate material 42 by spacers 46L, 46R, 46U, and 46D.

[0021] As shown in Figures 2 and 3, the holding frame portions 47a to 47f are U-shaped and fitted onto the outer peripheries of the plate materials 41 and 42. The holding frame portion 47a extends along the X direction so as to embrace the upper edges of the plate materials 41 and 42. The holding frame portion 47b extends along the X direction so as to embrace the lower edges of the plate materials 41 and 42. The holding frame portion 47c extends along the Y direction so as to embrace the left edges of the plate materials 41 and 42. The holding frame portion 47d extends along the Y direction so as to embrace the right edges of the plate materials 41 and 42. The holding frame portions 47e, 47f are formed in a range spanning two panel units 11A, 11B adjacent in the X direction. The holding frame portion 47e extends along the X direction so as to embrace adjacent upper corner portions of the panel units 11A, 11B. The holding frame portion 47f extends along the X direction so as to embrace adjacent lower corner portions of the panel units 11A, 11B. The holding frames 47a to 47f are made of a thermally conductive metal, such as aluminum.

[0022] (Suspension support mechanism 50) The two hanging support mechanisms 50 support the panel unit 11 at positions spaced apart in the X direction. As shown in FIG. 3, the suspension support mechanism 50 includes a shaft portion 51 and panel clamping portions 52a and 52b. Each component of the suspension support mechanism 50 is made of metal. The upper end of the shaft portion 51 is fixed to the ceiling surface 1a, and extends in the Y direction intersecting with the ceiling surface 1a. The shaft portion 51 is cylindrical with a thread cut on the outer periphery. The shaft portion 51 passes through a position facing the outer surface 41o of the plate material 41 from the ceiling surface 1a. The lower end of the shaft portion 51 is located below the panel unit 11.

[0023] The panel clamping portions 52a and 52b are fixed onto the shaft portion 51 by fixing means 52c and 52d such as nuts, and clamp the panel unit 11 from the Y direction. The panel clamping portions 52a and 52b are shaped like an L-shape plate when viewed from the X-direction. The panel clamping portion 52a contacts the upper surface and front surface of the holding frame portion 47a, and the panel clamping portion 52b contacts the lower surface and front surface of the holding frame portion 47b.

[0024] (Condensation receiving section 60) The condensation receiving portion 60 is fixed to the lower end of the shaft portion 51 and is provided directly below the lower end of the panel unit 11. As shown in Figure 3, the condensation receiving portion 60 comprises a condensation receiving main body portion 61 that receives dew dropping from the panel unit 11 (more precisely, the outer surfaces 41o, 42o) due to its own weight, an insulating portion 62 that covers the outside of the condensation receiving main body portion 61, and a support portion 63.

[0025] The condensation receiver main body 61 extends along the X direction and has a half-pipe shape that opens toward the upper side (the lower end side of the panel unit 11). The condensation receiver main body 61 extends along the lower end of the panel unit 11. The condensation receiver main body 61 is made of resin such as polyvinyl chloride. Condensation accumulates on the inner surface side of the condensation receiver main body 61.

[0026] The heat insulating portion 62 is bonded to the entire outer surface of the condensation receiver main body 61 so as to cover the entire outer surface of the condensation receiver main body 61. The heat insulating portion 62 is formed of a foam material such as foam rubber. The support portion 63 is fixed to the lower end of the shaft portion 51 and supports the condensation receiver main body portion 61 . The support portion 63 includes a support cover portion 63a and a bridge portion 63b. The support cover portion 63a is shaped to fit the outer surface and upper surface of the heat insulating portion 62. The bridge portion 63b extends in the Z direction so as to span both ends of the opening side of the condensation receiver main body portion 61. The bridge portion 63b is shaped like a rectangular plate that is long in the Z direction on the XZ plane. The lower end of the shaft portion 51 is fixed by a fixing means 63c such as a nut while passing through a through hole 63h that penetrates the bridge portion 63b in the thickness direction. Both ends of the bridge portion 63b in the Z direction are supported by the support cover portion 63a.

[0027] (Cooling pipe 30) 2, 4 and 5, the cooling pipe 30 extends in a meandering manner so that the refrigerant passes through it, and is fixed in line contact with the inner surface 41i of the plate material 41 by heat-transfer adhesive tapes 21-27. The cooling pipe 30 extends in a sinusoidal wave shape between the plate materials 41 and 42, with the X direction being the amplitude direction and the Y direction being the wave propagation direction. The cooling pipe 30 is formed in a cylindrical shape from a material with high thermal conductivity, such as copper.

[0028] The cooling pipe 30 comprises a wavy pipe section 36 consisting of multiple straight sections 31 and multiple curved sections 32L, 32R, a trap section 33, a discharge straight section 35, an inlet section 30i through which the refrigerant Rf enters, and an outlet section 30o through which the refrigerant Rf exits. In the refrigeration cycle system (not shown) of the refrigerator 1, the refrigerant Rf carrying heat from the outflow portion 30o is compressed by a compressor to become a high-temperature, high-pressure gas, and then liquefied by dissipating heat in a condenser. The liquid refrigerant Rf is then decompressed by a capillary tube and vaporized by a cooler, and is supplied to the inflow portion 30i. The refrigerant Rf flowing in from the inflow portion 30i passes through the cooling pipe 30, removing heat from the surroundings of the panel unit 11 and cooling the surroundings of the panel unit 11, and is then discharged from the outflow portion 30o. The refrigerant Rf may be any known refrigerant, and is, for example, a hydrofluorocarbon (HFC) or a hydrochlorofluorocarbon (HCFC).

[0029] The inlet portion 30i is located near one end in the X direction (the right end in FIG. 4) of the upper side of the plate material 41. The outlet portion 30o is located near the other end in the X direction (the left end in FIG. 4) of the upper side of the plate material 41. The refrigerant Rf that has flowed in from the inlet portion 30i passes through the corrugated pipe portion 36 → the trap portion 33 → the straight discharge portion 35, and is discharged from the outlet portion 30o.

[0030] The straight line portions 31 each extend in the X direction and are arranged in the Y direction. The straight line portions 31 are spaced apart at equal intervals, for example, at intervals of 5 cm to 10 cm. In this example, the straight line portions 31 are parallel to each other, but they may be non-parallel to each other. For example, two straight line portions 31 arranged in the Y direction may be formed so that the interval between them becomes wider toward the opening side where the curved portions 32L, 32R are not present. The curved portions 32L, 32R are curved in a U-shape connecting both ends of the straight portions 31 in the X direction so as to configure the straight portions 31 as a single flow path through which the refrigerant Rf passes. The straight portions 31 include three straight portions 31a to 31c aligned in the Y direction. Of the three, adjacent straight portions 31a, 31b have one end in the X direction (right end in FIG. 4) connected by a curved portion 32R. Furthermore, of the three, adjacent straight portions 31a, 31c have the other end in the X direction (left end in FIG. 4) connected by a curved portion 32L. In this manner, the curved portions 32L, 32R are arranged in a staggered pattern at both ends of the straight portions 31.

[0031] The discharge straight portion 35 extends in the Y direction so as to pass beside the corrugated pipe portion 36. The discharge straight portion 35 is connected via a trap portion 33 to the other end portion in the X direction (the left end portion in FIG. 4) of the straight portion 31 located at the lowest position among the multiple straight portions 31.

[0032] The trap section 33 is formed to store the liquefied liquid of the refrigerant Rf. The trap section 33 is formed by bending a pipe into a curved concave shape. When the liquefied liquid of the refrigerant Rf accumulates in the trap section 33, the liquid is pushed by the vaporized gas of the refrigerant Rf and is discharged from the outflow section 30o via the discharge straight section 35. This ensures that the liquefied liquid of the refrigerant Rf is circulated.

[0033] (Heat-transfer adhesive tape 21-27) 4 and 5, the heat-transfer adhesive tapes 21-27 are formed to cover the entire area of ​​the cooling pipe 30 facing the inner surface 41i of the plate material 41, and fix the cooling pipe 30 in line contact with the inner surface 41i of the plate material 41. The contact line between the cooling pipe 30 and the inner surface 41i extends along the extension direction of the cooling pipe 30. The heat-transfer adhesive tapes 21 to 27 not only function to fix the cooling pipe 30 to the inner surface 41i, but also function as a heat transfer material that efficiently transfers the coldness of the cooling pipe 30 to the plate material 41. 3, since the cooling pipes 30 are in contact with the plate material 41, coldness is easily transferred from the cooling pipes 30 to the plate material 41. Therefore, the temperature of the outer surface 41o of the plate material 41 becomes lower than the temperature of the outer surface 42o of the plate material 42.

[0034] As shown in Fig. 4 and Fig. 5, the heat-transfer adhesive tapes 21-27 are each strip-shaped, thermally conductive and flexible, and have an adhesive surface on one side. The heat-transfer adhesive tapes 21-27 are made of, for example, aluminum tape. The adhesive surface of each of the heat-transfer adhesive tapes 21-27 is curved so as to follow the side of the outer circumferential surface of the cooling pipe 30 opposite the inner surface 41i, and is adhered to the inner surface 41i on both outsides of this curved portion.

[0035] 4, the heat-transfer adhesive tapes 21-23 extend in the Y direction so as to straddle the multiple straight portions 31, and are arranged in the X direction. The heat-transfer adhesive tape 21 is located at the center in the X direction of the multiple straight portions 31. The heat-transfer adhesive tape 22 is located at one end (right end) of the multiple straight portions 31 in the X direction. The heat-transfer adhesive tape 23 is located at the other end (left end) of the multiple straight portions 31 in the X direction. The heat-transfer adhesive tape 24 extends in the Y direction so as to straddle the multiple curved portions 32R. The heat-transfer adhesive tape 25 extends in the Y direction so as to straddle the multiple curved portions 32L.

[0036] As shown in FIG. 5, each heat-transfer adhesive tape 26 extends in the X direction on each straight portion 31. The heat-transfer adhesive tape 26 is superimposed on the upper surface of each heat-transfer adhesive tape 21-25 extending in the Y direction. Each heat-transfer adhesive tape 26 spans the entire width of each heat-transfer adhesive tape 21-23. In addition, both ends of each heat-transfer adhesive tape 26 in the X direction overlap with a part of each heat-transfer adhesive tape 24, 25 in the width direction. In particular, the heat-transfer adhesive tapes 24, 25, and 26 have an area A1 where they overlap with each other in a part of the curved portions 32L, 32R. The heat-transfer adhesive tapes 23, 26 have an area A2 where they overlap with each other on the curved portion 32L side of each straight portion 31. The heat-transfer adhesive tapes 22, 26 have an area A3 where they overlap with each other on the curved portion 32R side of each straight portion 31. The heat transfer adhesive tape 27 extends over the discharge straight section 35 and the trap section 33. The heat transfer adhesive tape 27 may be made up of two different heat transfer adhesive tapes. This completes the description of the configuration of the suspended cooling panel 10.

[0037] (Wall Mounted Cooling Panel 110) 1, the cooling panel 110 is attached to a wall surface 1b. The cooling panel 110 has a similar configuration to the cooling panel 10, so the following description will focus on the differences between the cooling panel 10 and the cooling panel 110. As shown in FIG. 6, the cooling panel 110 differs from the above-described cooling panel 10 (see FIG. 3) in that it does not include the suspension support mechanism 50, the condensation receiving portion 60, the plate material 42, and the holding frames 47a to 47f. The cooling panel 110 includes a cooling pipe 30, a plate 41, spacers 46U and 46D, heat-transfer adhesive tapes 21 and 26, and a plurality of fastening parts 45A. The cooling panel 110 is attached in a state in which the cooling pipe 30 is covered with the heat-transfer adhesive tapes 21 to 27 as in FIG. 5, and the heat-transfer adhesive tapes 21 to 27 side faces the wall surface 1b. At this time, the spacers 46U and 46D are located between the plate 41 and the wall surface 1b. The cooling panel 110 is fixed to the wall surface 1b by the plurality of fastening parts 45A. The plurality of fastening parts 45A are provided at each corner of the plate 41.

[0038] (How to install the cooling pipe 30) Next, a method for fixing the cooling pipe 30 to the plate material 41 in the cooling panels 10, 110 with the heat-transfer adhesive tapes 21-27 will be described. The cooling pipe 30 is installed on the inner surface 41i of the plate material 41. Then, as shown in FIG. 4, the heat transfer adhesive tapes 21-25 are attached to the cooling pipe 30 and the inner surface 41i in the Y direction. This temporarily fixes the cooling pipe 30 to the inner surface 41i. Next, as shown in FIG. 5, a plurality of heat transfer adhesive tapes 26 are attached to each straight portion 31 of the cooling pipe 30 and to the inner surface 41i. At this time, the heat transfer adhesive tape 26 is partially located on the upper surface of the heat transfer adhesive tapes 21-25. Finally, the heat transfer adhesive tape 27 is attached to the discharge straight portion 35, the trap portion 33, and the inner surface 41i. As a result, the entire area of ​​the cooling pipe 30 located on the inner surface 41i is covered with the heat-transfer adhesive tapes 21 to 27. Thus, the cooling pipe 30 is fixed to the plate material 41 by the heat-transfer adhesive tapes 21 to 27. Up to this point, the manufacturing process for the cooling panel 10 and the cooling panel 110 is the same.

[0039] To manufacture the cooling panel 10, the spacers 46L, 46R, 46U, and 46D are then placed on the inner surface 41i, and the plate material 42 is then faced to the plate material 41, and the plate materials 41, 42 are fixed together by the fastening portion 45. The holding frame portions 47a to 47d are then fitted onto the outer peripheries of the plate materials 41, 42 to complete the panel unit 11. The panel unit 11 is then supported by the hanging support mechanism 50. Finally, the condensation receiving portion 60 is attached to the hanging support mechanism 50 to complete the cooling panel 10.

[0040] On the other hand, to manufacture the cooling panel 110, as shown in Fig. 6, the unit in which the cooling pipe 30 is fixed to the inner surface 41i is fixed to the wall surface 1b by the multiple fastening parts 45A after the spacers 46U and 46D are placed between the inner surface 41i and the wall surface 1b. With the above steps, the cooling panel 110 is completed.

[0041] 1, in two cooling panels 10A and 10B facing each other, plate material 41 of cooling panel 10A faces plate material 42 of cooling panel 10B. Cooling panel 110A faces plate material 42 of cooling panel 10A, and cooling panel 110B faces plate material 41 of cooling panel 10B.

[0042] (effect) According to the first embodiment described above, the following effects are achieved. (1) The cooling panel 10, 110 includes a cooling pipe 30 extending in a serpentine manner and through which a refrigerant Rf passes, an inner surface 41i on which the cooling pipe 30 is installed, and an outer surface 41o which is the reverse surface of the inner surface 41i exposed to the outside, and is equipped with a heat-conductive plate material 41, and heat-conductive heat-conductive adhesive tapes 21-27 which have an adhesive surface on at least one side and fix the cooling pipe 30 to the inner surface 41i by covering the cooling pipe 30 installed on the inner surface 41i with the adhesive surface adhered to the cooling pipe 30 and the inner surface 41i. According to this configuration, the plate material 41 prevents the cooling pipes 30 from being exposed to the outside. Therefore, unlike the configuration of Patent Document 1, frost does not get into the unevenness formed by the cooling pipes, and frost attached to the outer surface 41o of the plate material 41 can be easily removed. In addition, the coldness of the cooling pipes 30 is uniformly transmitted in the surface direction of the cooling panels 10, 110 by the plate material 41. Therefore, the cooling panels 10, 110 can achieve a high cooling effect. Furthermore, the entire area of ​​the cooling pipe 30 installed on the inner surface 41i of the plate material 41 is covered and fixed to the inner surface 41i by the heat transfer adhesive tapes 21 to 27. This allows the coldness of the cooling pipe 30 to be transferred to the plate material 41 more efficiently than in the comparative example in which the cooling pipe is welded to the plate material at predetermined intervals in the extension direction of the cooling pipe, and suppresses a decrease in the cooling effect due to a gap between the cooling pipe and the plate material. Furthermore, when the size of the interior (storage space 1s) of the refrigerator 1 is large, the size of the interior can be flexibly increased simply by increasing the number of cooling panels 10, 110. That is, in the above configuration, it is not necessary to adjust the length of the cooling pipes according to the size of the interior.

[0043] (2) The heat-transfer adhesive tapes 21 to 27 are arranged to cover the entire area of ​​the cooling pipe 30 disposed on the inner surface 41i, and bring the cooling pipe 30 into line contact with the inner surface 41i. According to this configuration, coldness can be transmitted from the cooling pipe 30 to the inner surface 41i.

[0044] (3) The cooling pipe 30 includes a plurality of straight portions 31 extending in the X direction out of the mutually orthogonal X direction and Y direction (first and second directions) set on the inner surface 41i and arranged in the Y direction, and a plurality of curved portions 32L, 32R curved in a U shape by connecting the ends of the straight portions 31 in the X direction to configure the cooling pipe 30 to extend in a sinusoidal wave. The cooling panels 10, 110 include heat transfer adhesive tapes 24, 25 which are an example of a first heat transfer adhesive tape extending in the Y direction so as to straddle the curved portions 32L, 32R, and a heat transfer adhesive tape 26 which is an example of a second heat transfer adhesive tape extending in the X direction on the straight portions 31. Compared to the straight portions 31, it is structurally difficult to uniformize the coolness in the Y direction for the curved portions 32L, 32R, but in the above configuration, the heat-transfer adhesive tapes 24, 25 transfer heat in the Y direction, making it possible to uniformize the coolness in the Y direction at the curved portions 32L, 32R. Therefore, the coolness on the outer surface 41o of the plate material 41 can be uniformed.

[0045] (4) The cooling panel 10 includes a plate material 42, which is an example of a second plate material, which sandwiches the cooling pipe 30 between the plate material 41, which is an example of a first plate material, a fastening portion 45, which is an example of a holding member, which holds the plate materials 41, 42 as a panel unit 11 with the cooling pipe 30 sandwiched between them, and a hanging support mechanism 50 which suspends the panel unit 11 in a direction intersecting with the ceiling surface 1a. According to this configuration, the panel unit 11 can be suspended in a direction intersecting with the ceiling surface 1a.

[0046] (5) The suspension support mechanism 50 is fixed to the ceiling surface 1a and includes a shaft portion 51 extending in a direction intersecting the ceiling surface 1a, and panel clamping portions 52a, 52b that are fixed on the axis of the shaft portion 51 and are an example of a panel holding portion that holds the panel unit 11 from the Y direction. The cooling panel 10 is fixed to the end of the shaft portion 51 opposite the ceiling surface 1a and includes a condensation receiving portion 60 that receives condensation dropping from the panel unit 11. According to this configuration, dew falling from the panel unit 11 is prevented from wetting objects to be cooled, such as food, or the floor inside the refrigerator.

[0047] (6) The condensation receiving portion 60 comprises a condensation receiving main body portion 61 that receives condensation falling from the panel unit 11, and an insulating portion 62 that covers the entire outer surface of the condensation receiving main body portion 61 and has higher insulating properties than the condensation receiving main body portion 61. According to this configuration, the heat insulating portion 62 suppresses condensation on the outer surface of the condensation receiver main body 61.

[0048] The present invention is not limited to the above-described embodiment and drawings. Modifications (including the deletion of components) can be made as appropriate within the scope of the present invention. An example of a modification will be described below.

[0049] (Modification) In the above embodiment, the trap portion 33 of the cooling pipe 30 may be omitted. In the above embodiment, the cooling pipe 30 includes the wavy pipe section 36 that meanders sinusoidally with the X direction being the amplitude direction and the Y direction being the wave traveling direction. However, the wavy pipe section 36 may conversely meander sinusoidally with the Y direction being the amplitude direction and the X direction being the wave traveling direction.

[0050] In the above embodiment, the order in which the heat-transfer adhesive tapes 21 to 27 are applied can be changed as appropriate. For example, the heat-transfer adhesive tapes 21 to 25 may be applied after the heat-transfer adhesive tape 26 is applied.

[0051] In the above embodiment, any one or more of the heat-transfer adhesive tapes 21-23 and 27 among the heat-transfer adhesive tapes 21-25 may be omitted. Furthermore, any number of heat-transfer adhesive tapes may be used, and for example, one heat-transfer adhesive tape may be formed along the extending direction of the cooling pipe 30 on the inner surface 41i. Furthermore, the heat-transfer adhesive tape may be in the shape of a rectangular sheet that is substantially the same as the inner surface 41i.

[0052] In the above embodiment, the heat-transfer adhesive tapes 21 to 27 have an adhesive surface on only one side, but they may have adhesive surfaces on both sides. In this case, the heat-transfer adhesive tape may have a first adhesive surface that adheres to the inner surface 41i of the plate material 41 and a second adhesive surface that adheres to the inner surface 42i of the plate material 42. In the above embodiment, the condensation receiver 60 may be omitted. In the above embodiment, the cooling pipe 30 does not have to be in line contact with the inner surface 41i. In the above embodiment, the heat insulating portion 62 of the condensation receiving portion 60 may be omitted. The refrigerator 1 in the above embodiment includes the plurality of cooling panels 10 and the plurality of cooling panels 110, but either one of the plurality of cooling panels 10 or the plurality of cooling panels 110 may be omitted. In the above embodiment, the cooling panel 110 has a different configuration from the cooling panel 10, but may have the same configuration as the cooling panel 10. [Explanation of symbols]

[0053] 1...refrigerator, 1a...ceiling surface, 1b...wall surface, 1s...storage space, 10, 10A, 10B, 110, 110A, 110B...cooling panel, 11, 11A, 11B...panel unit, 21 to 27...heat transfer adhesive tape, 30...cooling pipe, 30i...inlet section, 30o...outlet section, 31, 31a to 31c...straight section, 32L, 32R...curved section, 33...trap section, 35...discharge straight section, 36...wavy pipe section, 41, 42...plate material, 41i, 42i...inner surface, 41o, 42o...outer surface, 45, 45A...fastening portion, 46L, 46R, 46U, 46D...spacer, 47a to 47f...holding frame portion, 50...suspension support mechanism, 51...shaft portion, 52a, 52b...panel clamping portion, 52c, 52d, 63c...fixing means, 60...condensation receiver portion, 61...condensation receiver main body portion, 62...insulation portion, 63...support portion, 63a...support cover portion, 63b...bridge portion, 63h...through hole, A1, A2, A3...area, F...food, Rf...refrigerant

Claims

1. A cooling pipe extending in a meandering manner and through which a refrigerant passes; a plate material having an inner surface on which the cooling pipe is installed and an outer surface which is the reverse surface of the inner surface exposed to the outside, the plate material having thermal conductivity; a heat-transfer adhesive tape having an adhesive surface on at least one side thereof, the adhesive surface being attached to the cooling pipe and the inner surface to cover the cooling pipe installed on the inner surface, thereby fixing the cooling pipe to the inner surface, and having heat conductivity; Cooling panel.

2. the heat-transfer adhesive tape is arranged to bring the cooling pipe into line contact with the inner surface while covering the entire area of ​​the cooling pipe installed on the inner surface; The cooling panel of claim 1 .

3. The cooling pipe is A plurality of straight line portions extending in the first direction and arranged in the second direction among first and second directions perpendicular to each other set on the inner surface; a plurality of curved portions connecting ends of the plurality of straight portions in the first direction to each other so as to configure the cooling pipe to extend in a sinusoidal shape; The cooling panel includes: a first heat transfer adhesive tape extending in the second direction so as to span the curved portions; a second heat transfer adhesive tape that is a heat transfer adhesive tape other than the first heat transfer adhesive tape extending in the first direction on the plurality of straight line portions; The cooling panel according to claim 1 or 2.

4. The cooling panel includes: a second plate member that sandwiches the cooling pipe between the first plate member and the second plate member; a holding member that holds the first plate material and the second plate material as a panel unit in a state in which the cooling pipe is sandwiched between the holding member and the second plate material; A hanging support mechanism that hangs the panel unit in a direction intersecting with a ceiling surface. The cooling panel according to claim 1 or 2.

5. The suspension support mechanism includes: A shaft portion fixed to the ceiling surface and extending in a direction intersecting the ceiling surface; a panel holding portion fixed on the axis of the shaft portion and holding the panel unit, The cooling panel is fixed to an end of the shaft portion opposite to the ceiling surface and includes a condensation receiving portion for receiving condensation dropping from the panel unit. The cooling panel of claim 4.

6. The condensation receiving portion is a condensation receiving body for receiving condensation dropping from the panel unit; A heat insulating part that covers the entire outer surface of the condensation receiving body and has higher heat insulating properties than the condensation receiving body. The cooling panel of claim 5.

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