JP4261386B2 - Foldable heat sink - Google Patents

Description

  The present invention relates to a foldable heat sink. In more detail, it is used for laying on the base material surface of buildings such as ordinary houses, apartment houses, commercial buildings or hotels, it can be folded, and it is easy to pack, store, transport, lay, etc. The present invention relates to a foldable heat radiating plate having a flat finished surface.

  2. Description of the Related Art Conventionally, floor heating technology for heating from the floor of a house has been proposed and put into practical use for the purpose of improving the habitability of houses in cold regions and the habitability of houses in warm regions in the cold season. For example, in a detached house, a method of incorporating a floor heating radiator (also called a panel) between the large fork and the floorboard, or the upper surface (or the upper side) of the underlaying plywood laid on the large fork, etc. In apartment buildings such as condominiums, a method of laying a floor heating radiator directly on the upper surface of the slab floor or on an underlaying plywood laid on the upper surface of the slab floor is adopted. Yes.

  For example, JP-A-60-223922 (Patent Document 1), JP-A-3-175216 (Patent Document 2), JP-A-4-80596 (Patent Document 3), As described in Kaihei 8-261485 (Patent Document 4) and the like, a groove or a space is formed on one surface of a plate-like body made of a soft foam or a hard foam, and a space portion is formed in the groove. There has been proposed a structure in which a heat medium tube (flexible tube for heat medium) is embedded and the surface thereof is covered with a soaking material such as an aluminum foil.

  These conventionally known heat sinks generally embed a heat transfer medium tube in a narrow and long plate-like body in a groove or space formed along the length direction of the plate-like body. there were. When laying a heat radiating plate having such a structure, in many cases, a method of assembling a wide-width one in a factory in advance and carrying it to a laying site is laid. However, according to this conventional method, when the heat sink assembled in a wide width is folded, the heat medium tube is crooked or scratched by friction with a groove formed in the plate-like body.

If the heat transfer tube is crooked or scratched by friction with a groove formed in the plate, the heat transfer tube is connected to another plate adjacent to the narrow and long plate. As a result of studying a method for eliminating these drawbacks, a heat dissipation plate having a structure in which the plate-like body can be attached and detached has been proposed. -141899 (patent document 5), JP-A-11-294783 (patent document 6), JP-A-2003-16719 (patent document 7), etc.}. However, as a result of further investigations, the heat sink with the previously proposed structure has solved the above-mentioned drawbacks, but the number of plate-like bodies is large, and the manufacturing work and the heat medium tube are fitted in the grooves of the plate-like bodies. It has been found that there are drawbacks such as complicated laying work while laying, and the heat sink surface after laying becomes uneven and uneven.
JP-A-60-223922 JP-A-3-175216 Japanese Patent Laid-Open No. 4-80596 JP-A-8-261485 JP-A-11-141899 Japanese Patent Laid-Open No. 11-294783 JP 2003-16719 A

  The present inventors have few members (parts), are easy to manufacture, can be folded, and when packing, storing, transporting, and laying, the heating medium tube is crooked or grooved in a plate-like body As a result of earnest study to provide a heat sink that can be easily laid at the laying site without causing scratches due to friction with the surface and the surface after laying is finished flat, the present invention has been completed. is there.

In order to solve the above problems, in the present invention, a buried groove of a heat transfer tube is engraved on one surface, and a plurality of long narrow unit plate bodies (A1, B1) made of a foamed synthetic resin plate are provided. It is composed of two sets (A set, B set) of plate-like bodies arranged in contact with each other in the width direction and having a substantially square plane shape, and two sets (A set, B set) The same number of plate-like bodies are arranged in a discontinuous state by abutting the end portions in the length direction, and the embedded grooves are connected to two sets (A set and B set) of plate-like bodies. In a foldable heat sink that is embedded in a state, a heat transfer tube is embedded, a heat radiating sheet is attached to the entire surface, and a plurality of contact portions where the ends of adjacent plate-like bodies contact each other are folded portions ,
The unit plate-like bodies (A1, B1) constituting the two sets (A set, B set) of the plate-like bodies have the same thickness as the plate-like bodies along the length direction, and are slightly more than the plate-like bodies. A plurality of short wooden joists are arranged in parallel to each other at equal intervals.
Two sets (A set, B set) of plate-like bodies abut the lengthwise ends of the unit plate-like bodies (A1, B1) located at the end in the width direction of each set (A set, B set). , The heat medium tube is aggregated in one specific place and is made to have a structure that extends from one unit plate (A1) to the other unit plate (B1), and
A plurality of unit plate-like bodies constituting two sets (A set, B set) are end-to-end in the width direction, and are aggregated at a specific location in the middle of adjacent wooden small joists across the heat transfer medium tube. The unit plate-like body (A1) and the other unit plate-like body (A2) are structured so that the remaining unit plate-like bodies have the same structure.
The place where the heat transfer tube is passed over the other unit plate is between the two wooden small joists provided on each of the unit plate (A1) and unit plate (A2). The unit plate-shaped body width direction end of the heat medium tube outlet opening position and the other unit plate-shaped body width direction end of the heat medium tube inlet opening position are shifted without facing each other, and adjacent units A notch for heat medium tube placement is provided between both the openings on the wall surface in the width direction of the plate-like body, and the heat medium tube from the outlet opening is provided at the portion provided with the notch for heat medium tube placement. A foldable heat radiating plate, wherein the foldable heat radiating plate is made discontinuous along the bent portion of either the heat radiating sheet surface or the back surface material of the plurality of bent portions. provide.

The present invention has the following particularly advantageous effects, and its industrial utility value is extremely great.
1. The foldable heat radiation plate according to the present invention is a single type of member in which a plurality of continuous heat medium tubes are embedded in a plurality of unit plate-like bodies, and a heat radiation sheet is attached to the surface side to be integrated. Since it is comprised, there are few types of structural members and the handling at the time of manufacture, packing, storage, transportation, and laying is easy.
2. Two sets of foldable heat sinks according to the present invention (A set, B set) are unit plate shapes that are positioned at the end in the width direction of each set (A set, B set) where the heat medium tubes are crossed. Since it is gathered at a specific location where the lengthwise ends of the bodies (A1, B1, etc.) are butted together, when the boundary between the A set and B set of the heat sink is folded, It is hard to bend and entangle.
3. In the same set of foldable heat sinks according to the present invention, the position where the heat medium tube is crossed is specified by abutting the width direction end portions (A1 and A2, B1 and B2) of adjacent unit plate-like bodies. Therefore, when the boundary between A1 and A2 and the boundary between B1 and B2 are bent, the heating medium tube is unlikely to be bent or entangled.
4). The foldable heat radiation plate according to the present invention is a bent portion, the position of the heat medium tube outlet opening at the width direction end of one unit plate (A1 or B1 ), and the other unit plate (A2). Or the heat medium tube inlet opening position at the end in the width direction of B2 ) is shifted without facing, and the heat medium tube is disposed between both the opening portions of the adjacent unit plate-shaped body width direction end wall surfaces. Since the notch for placement is provided, and the heat medium tube from the outlet opening is extended to the inlet opening at the portion where the notch for heat medium tube placement is provided, the heat sink is bent at the bent portion. At this time, it is difficult for the heating medium tube to be bent or entangled.
5. In the foldable heat sink according to the present invention, a plurality of plate-like bodies are integrated by a heat radiating sheet, but the heat sink is discontinuous along the bent portion, so the heat sink is folded at the bent portion. When bent, the discontinuous portion functions as a hinge and does not separate into a plurality of plate-like bodies constituting the heat sink.
6). Even when the foldable heat sink according to the present invention is arranged in two sets (A set, B set) in which the plate-like bodies are combined in two rows, a part of the two sets of bent portions are made continuous by the heat radiating sheet. By making the hinge and discontinuous the remaining part, it can be folded smoothly.
7). A heat radiating plate of a combination of a group A and B foldable radiator plate according to the present invention, as the direction of the heat medium flowing through the adjacent heat medium tubes are reversed to each other, the heating medium tube to the header 10 By connecting, local overheating of the heat sink can be prevented and a uniform temperature distribution can be achieved.
8). Since the foldable heat sink according to the present invention has a flat surface when unfolded and flattened during laying, the floor surface on which the cover material is disposed is also excellent in flatness.

Hereinafter, the present invention will be described in detail.
The foldable heat sink according to the present invention is composed of a plurality of long and narrow unit plate-like bodies (meaning one unit of plate-like body), and has a wide and long rectangular shape for floor heating. Used for laying heat sinks (panels). The unit plate-like body may be a combination of a plurality of small plate-like bodies. When the refrigerant is passed through the heat medium tube of the heat sink instead of the heat medium, it is also used as a heat sink for cooling.

  The material of the plate-like body is selected from wood flooring, wooden board, plywood, particle board, fiber board, synthetic resin board and the like. In the case of a synthetic resin plate, it is preferable to select from among hard foamed resin plates having closed cells, light weight and excellent rigidity. Specific examples of the hard foamed resin plate include foamed polystyrene, a mixture of foamed polystyrene and foamed polyethylene, foamed polypropylene, hard polyurethane, and foamed hard rubber, but are not limited to those exemplified. The foaming ratio of the synthetic resin plate varies depending on the type of resin, but can be selected in the range of 1.2 to 50 times. The hard foam resin plate not only can prevent the plate-like body from being crushed by the weight by being loaded on the surface side, but also dissipating heat by arranging multiple wooden joists in parallel along the length direction. The board is used for fixing the base material of the building with nails or screws, and the surface material (finishing material) is fixed to the surface of the heat sink with nails or screws.

  The thickness of the unit plate can be selected from the range of the diameter of the heat medium tube plus (+) 1 mm as the minimum thickness, and the maximum thickness can be selected within the range of the diameter of the heat medium tube plus 40 mm. If the thickness of the plate-like body is not less than the diameter of the heat medium tube plus 40 mm, the unit plate-like body becomes too thick, and the heat sink becomes bulky and difficult to handle as a whole. The length of the unit plate-like body can be selected in the range of 300 mm to 4000 mm according to the place where the heat sink is laid. The heat sink according to the present invention is laid by combining a plurality of sets of heat sinks when the area of the place to be laid is large.

  The width of the unit plate can be selected in the range of 250 mm to 2000 mm. If the width of the unit plate-shaped body exceeds 2000 mm, the workability such as folding, packing, storage, and transportation is inferior, and if it is less than 250 mm, the U-shaped groove that changes the direction of the heat transfer tube cannot be engraved. There are disadvantages such as requiring a large number of unit plate to make the width, heat sink production work, folding work after heat sink production, laying work released from the folded state, etc. It is not preferable. When arranging a plurality of unit plate-like bodies to form a substantially square heat sink, the thickness and length are preferably the same, but the width need not be the same. , May have different dimensions. When the plate-like body is a hard foamed resin plate and a plurality of wooden small joists are arranged in parallel along the length direction, if the interval between the wooden small joists is 303 mm, the conventional laying method is used. This is preferable because it can be laid and can be easily used to fix the covering material (finishing material) with a nail or a screw.

  An embedding groove for embedding the heat medium tube is engraved on one surface of the heat radiating plate constituted by a plurality of unit plate-like bodies. The surface on which the buried groove is engraved may be on either the front surface side or the back surface side, but the front surface side is preferred from the viewpoint of heat dissipation efficiency. The buried groove preferably has a U-shaped cross section when cut at right angles to the extending direction of the buried groove. The opening width and depth of the buried groove having a U-shaped cross section are preferably the same as the diameter of the heat medium tube. The buried grooves are engraved in a continuous arrangement as viewed from the plane by appropriately combining a U-shaped curve, a straight line, and an S (or inverted S) -shaped curve. Hereinafter, a heat sink having a structure in which a buried groove is formed on the surface side of the heat sink will be described.

  The buried groove whose plane exhibits a U-shaped curve is a straight groove provided along the length direction, a U-shaped curved groove that changes the direction of the heat transfer medium tube, and a plane having an S (inverse S) shape curve. It is comprised by the buried groove which exhibits. The straight groove is a groove connecting the U-shaped curve provided at the end of the unit plate-like body along the length direction of the unit plate-like body, and the buried groove whose plane exhibits an S (inverse S) -shaped curve is Among the plurality of bent portions, a part of the heat medium tube is engraved in a portion that extends from one unit plate to the other unit plate. The radius of curvature of the U-shaped curve and the S (inverse S) -shaped curve is preferably set to a minimum dimension that does not cause the heat transfer tube to buckle. The buried grooves are preferably distributed so as to be uniformly radiated from the heat sink as a whole.

  The heat dissipation plate according to the present invention includes a plurality of long and narrow unit plate-like bodies arranged in contact with each other at the ends, and two sets (A set, B set) whose planar shape is substantially rectangular. It is comprised from the plate-shaped body. The combination of the two sets (A set and B set) is to make the unit plate-like body easy to handle without increasing the area and to increase the plane area by combining the two sets to form a heat sink. The unit plate-like bodies constituting each set (A set, B set) are arranged in the same number in a state where the end portions in the length direction are abutted and discontinuous. The buried groove has a structure embedded in two sets (A set, B set) of plate-like bodies in a state where the heat medium tubes are connected. A heat-dissipating sheet is attached to the entire surface on which the heat medium tube is embedded. A back material can be attached to the entire back surface or a part of the back surface. In the heat dissipating plate according to the present invention, a plurality of contact portions where end portions of adjacent plate-like bodies contact each other form a folded portion.

  The heat dissipating sheet is attached to the entire surface of the heat dissipating plate and functions to efficiently dissipate the heat from the heat medium tube, and also functions so that the heat medium tube embedded in the embedded groove does not come off the embedded groove. Furthermore, as described above, the bent portion functions as a hinge. The heat dissipation sheet is attached to the entire surface of the heat dissipation plate via an adhesive. Examples of the heat dissipation sheet include a metal foil such as an aluminum foil, a laminate of an aluminum foil and a non-woven fabric, and a plastic film obtained by vapor-depositing a metal such as aluminum. The back material is an aluminum foil, a plastic film, a non-woven fabric, and an aluminum foil. And a laminate of non-woven fabric and the like. An aluminum foil having a thickness of 10 to 200 μm is preferable as the heat dissipation sheet and the back material. The adhesive used when sticking this kind of heat radiation sheet is used without any particular limitation.

  The two sets (A set, B set) of the plate-like bodies are abutting the end portions in the length direction of the unit plate-like bodies (A1, B1) located at the end portions in the width direction, and the heat medium tube is located at one specific place. The unit plate-like body (A1) and the other unit plate-like body (B1) are integrated. The specific one place means not a full width of the end portions in the length direction but a limited portion (see FIG. 1 described later). Aggregating the location where the heat medium tube is extended from the A group to the B group in one specific place facilitates the embedding work of the heat medium tube, prevents the heat medium tube from being entangled, and folds the heat sink It is to make it easier.

  Further, the plurality of unit plate-like bodies (A2, A3, B2, B3) constituting the above two sets (A set, B set) abut each other in the width direction, and collect the heat medium tubes at one specific place. In addition, the same unit (A group) is configured so that one unit plate (A1) extends to the other unit plate (A2), and the remaining unit plates (A2, A3) have the same structure. (See FIG. 1 and FIG. 3 below). The specific one portion means not a full width of the end portion in the butting width direction but a limited portion (see FIG. 1 described later). The heat transfer tube is structured to extend from one unit plate (B1) of the other set (B set) to the other unit plate (B2). In the case of the remaining unit plate ( B2 and B3) have the same structure. In the same group (group A or group B), the location where the heat medium tubes are crossed is gathered into one specific place, as in the case where the end portions in the length direction are butted together, making it easy to embed the heat medium tubes. It is to prevent the heat medium tube from being entangled and to make the heat sink easy to fold.

  The heat dissipation plate according to the present invention includes a heat medium tube outlet (referred to as an outflow portion of the heat medium) opening position at the end in the width direction of one unit plate (A1) of the adjacent unit plate, and the other unit plate. The opening position of the heat medium tube inlet (referred to as a heat medium inflow portion) at the end in the width direction of the unit plate-like body (A2) is shifted without being opposed to be provided at a specific location (described later, FIG. 3). And FIG. 4). When a heat transfer medium tube is placed between one outlet and the other inlet (hereinafter also referred to as the tube crossing portion), and the heat sink is bent at the bent portion including the tube crossing portion, The medium tube is exposed in a straight line at the crossing portion of the tube, and is hardly twisted because it is not twisted and is not bent at a right angle. If the length for shifting the opening (the length of the tube crossing portion) is too small, the heat transfer medium tube will be twisted, and it will be bent at an angle close to a right angle. When the bent state is released into a flat surface, it becomes difficult to fit the heat medium tube exposed in this portion into the heat medium tube notch, which is not preferable. The shifting length is preferably in the range of 3 to 20 times the diameter of the heat medium tube.

  A notch portion for disposing the heat medium tube is provided between both the opening portions (tube crossing portions) of the end wall surfaces of the adjacent unit plate-like bodies. The notch portion for arranging the heat transfer medium tube is provided at the end of the two unit plate-like bodies as a mirror contrast, and forms a buried groove having a U-shaped cross section when the two unit plate-like body end portions are abutted against each other. (See FIG. 4 described later). By having such a structure, when the unit plate-like body is bent at the contact portion between the end portions, the heat transfer medium tube crossed at the tube crossing portion is exposed, and the bending is laid and laid in a flat state. In doing so, the heat-medium tube can be easily returned to the notch for arranging the heat-medium tube. The length of the heat medium tube arrangement notch may be the same as the length of the tube transition portion, or may be the entire length of the bent portion including the tube transition portion.

  The position where the bent portion including the heat medium tube crossing portion is provided on the heat radiating plate is between the two sets of the A set and the B set, with the end portions in the length direction being abutted, and the two unit plate-like bodies A1 and B1 portions. One place (see later, FIG. 1 and FIG. 9). Within each group (A group or B group), it is set as the width direction edge part of one unit plate-shaped body and the other unit plate-shaped body (refer to a postscript and FIG. 9).

  The heat medium tube embedded in the heat medium tube embedded groove {straight line, U-shaped curve and S (inverse S) -shaped curve} performs the function of passing the heat medium and refrigerant through the inner space, and is flexible. It must be excellent in mechanical properties, mechanical strength, heat resistance, and chemical resistance. Examples of the heat transfer medium tube exhibiting such characteristics include a crosslinked polyethylene pipe, a polybutene pipe, a polypropylene pipe, a soft polyvinyl chloride pipe, a nylon pipe, and the above resin pipe in which a metal wire is embedded in the wall surface of the pipe, and the like. Among these, a crosslinked polyethylene pipe and a polybutene pipe are preferable. The outer diameter of the heat transfer tube varies depending on the area where the building is constructed, the type of building, etc., but can be selected within the range of 3 to 20 mm and the wall thickness of 0.5 to 5 mm. Examples of the medium that can be passed through the heat medium tube include water, ethylene glycol, propylene glycol, gas, and the like together with the heat medium and the refrigerant.

  The heat medium tube is connected via a header to a heat medium circulation device equipped with a heat medium temperature / pressure adjusting device. The heat medium circulation device is preferably installed in the vicinity where the heat sink is laid, for example, under the floor, outdoors, on the roof. In the heat sink that combines the group B and the group B, the heat medium flowing through the adjacent heat medium tubes is connected to the header 10 so that the directions of the heat medium are opposite to each other, thereby preventing local overheating of the heat sink and a uniform temperature. It can be a distribution.

  In the case where the buried groove is engraved on the back surface side of each set of plate-like bodies, it is preferable that the thickness of the plate-like body is made as thin as possible, and the heat radiation sheet to be attached to the back surface side is used as the back material. Since the back material functions so that the heat medium tube does not come off from the embedded groove and also functions to reflect heat to the front surface side of the plate-like body, it is preferable that the back material is adhered to the entire back surface side. The method of combining a plurality of unit plate-like bodies, the method of embedding a heat medium tube, the method of forming a bent portion, and the like are the same as those in which the embedding grooves described above are engraved on the surface side of the plate-like body.

  The foldable heat sink according to the present invention is preferably manufactured in advance at a factory or a manufacturing site. The heat radiating plate has a desired area by arranging a plurality of unit plate-like bodies with their ends in contact with each other, and the planar shape is substantially rectangular. A continuous heat medium tube is embedded in the embedded groove of the heat medium tube engraved on one surface, and the heat radiation sheet is cut into the heat radiation sheet of the bent portion and the heat radiation sheet is cut into the entire surface. Since the heat dissipating sheet in the bent portion is discontinuous, the continuous surface side is used as a hinge, and the discontinuous surface side is opened and bent (see FIG. 6 described later). In addition, when the unit plate-shaped body is a combination of a plurality of small plate-shaped bodies, the plurality of small plate-shaped bodies are bonded to the back surface material to form a unit plate-shaped body.

  Hereinafter, the laying method of the foldable heat sink according to the present invention will be described. Foldable heat sinks manufactured in advance at the factory are transported and carried to the laying site in a folded form, and laid at a predetermined position on the floor surface of the building. The floor surface is a slab surface in concrete buildings such as condominiums, commercial buildings, hotels, etc., and a ground floor plywood formed on these, and in a detached house, it is a ground floor plywood. . The predetermined position may be the entire floor surface of the room or a specific position on a part of the floor surface of the room. If the laying area is large, a plurality of heat sinks may be combined.

  When laying a heat radiating plate, it is preferable to arrange a cover material on the heat radiating sheet. Examples of the covering material include plywood, wood board, fiber board, resin board, particle board, carpet and the like, but are not limited to those exemplified. The cover material shall be selected according to the material type of the plate-like body. The cover material may be composed of a single sheet or a combination of a plurality of thin pieces. The surface of the cover material may be a material coated with a paint, or a wood grain pattern or other pattern printed. If the thickness of the cover material is too thin, the above function cannot be exerted, and if it is too thick, the heat transfer efficiency from the heat medium tube is lowered, so neither is preferable. The thickness of the cover material can be selected in the range of 1 to 15 mm.

  Hereinafter, the present invention will be described in detail with reference to the drawings. However, the present invention is not limited to the following description examples as long as the gist thereof is not exceeded.

  1 is a partial schematic plan view of an example of a foldable heat sink according to the present invention, FIG. 2 is an enlarged schematic plan view of a portion II in FIG. 1, FIG. 3 is an enlarged schematic plan view of a portion III in FIG. Fig. 5 is a schematic enlarged plan view of the IV part (tube crossing part) of Fig. 5. Fig. 5 is a schematic vertical side view of the heat sink using the back material as a hinge at the VV portion in Fig. 3, and Fig. 6 is a diagram showing the back material as a hinge. FIG. 7 is a schematic vertical side view showing a state in which bending is completed from the state shown in FIG. 6. FIG. 8 is a schematic longitudinal side view corresponding to FIG. 3 of the heat radiating plate having the heat radiating sheet as a hinge, and FIG. 9 is a schematic plan view of an example of a foldable heat radiating plate composed of six plate-like bodies.

  The heat radiating plate 1 is engraved with a heat medium tube burying groove 3, and the burying groove 3 has a U-shaped curved surface at the end of the plate-like body 2, and the U-shaped curved curve at the end. A linear groove connecting the two is engraved along the length direction of the plate-like body. A portion of the fluid tube 4 that extends from one plate-like body to the other plate-like body (tube cross-over portion) is provided with a buried groove whose plane exhibits an S (inverse S) -shaped curve. Two sets (A set, B set) of plate-like bodies are abutted at the end portions in the length direction of unit plate-like bodies (A1, B1) located at the end portions in the width direction, and the heat medium tube is formed into one unit plate shape. The portion that extends from the body (A1) to the other unit plate-like body (B1) is concentrated in one place with a width of about 1/4 of the entire width of the unit plate-like body (A1, B1) ( (See FIG. 1). The portion where the heat medium tubes of the plurality of unit plate bodies (A2, A3, B2, B3) constituting the above two sets (A group, B group) are also located in the vicinity of the end in the length direction of each unit plate body (See FIG. 1).

  In addition, the heat sink 1 shown in FIG. 1 has a width of 45 mm, a thickness of 12 mm, and a length of 1250 mm on a polystyrene foam plate having a plane size of 2727 mm × 2727 mm, a thickness of 12 mm, and an expansion ratio of 20 times. Three wooden small joists were composed of long narrow unit plates arranged along the length direction. In each unit plate-like body, as shown in FIG. 1, wooden small joists were arranged with an interval between adjacent small joists of 303 mm. The heat radiating plate 1 was formed into a substantially quadrilateral shape by combining two sets of A set composed of unit plate-like bodies A1 to A4 and B set composed of B1 to B4. On the surface side of the two sets of plate-like bodies constituting the heat radiating plate 1, a heat medium tube embedding groove 3 having a depth of 7.2 mm and an opening width of 8.0 mm is engraved in the pattern shown in FIG. Then, four continuous heat medium tubes 4 having a diameter of 7.2 mm were embedded in the fluid embedding groove. The heat medium tube 4 is connected to a heat medium circulation device (not shown) via the header 10. In the heat sink that combines A set and B set, the direction of the heat medium flowing through the adjacent heat medium tubes is connected to the header 10 so as to be opposite to each other, thereby preventing local overheating of the heat sink and uniform. It can be a temperature distribution.

  In the example illustrated in FIGS. 5 to 7, the heat radiating sheet 5 is adhered to the surface side of the unit plate-like bodies A <b> 1 and A <b> 2 that constitute the heat radiating plate 1 and are adjacent to each other. The heat dissipating sheet 5 is discontinuous at the bent portion 8. The position of the heat medium tube outlet opening 2a at the end of the unit plate A1 and the position of the heat medium tube inlet opening 2b at the end of the unit plate A2 are shifted without being opposed to each other. In the state where the unit plate-like bodies A1 and A2 are provided with heat medium tube disposition notches 7a and 7b, and the heat dissipating plate 1 is in a flat state, the fluid tube embedding groove is formed in both notches. Similarly to the above, the longitudinal section forms a U-shaped groove (see FIG. 5). When the heat radiating plate 1 is bent at the bent portion 8, the heat radiating sheet 5 side is separated at the discontinuous portion, and the heat medium tube 4 is at the tube crossing portion between the opening 2a and the opening 2b. It is exposed from the unit plate A1 to the other unit plate A2 (see FIGS. 6 to 7).

  In FIG. 8, the heat radiating sheet 1 is adhered to the surface of the unit plate-like bodies A1 and A2 that constitute the heat radiating plate 1 and are adjacent to each other. The heat radiating sheet 5 is continuous at the bent portion 8 and functions as a hinge, and the heat medium tube 4 is exposed.

  In the example illustrated in FIG. 9, in the group A constituting the heat sink 1, the unit plate-like bodies A <b> 1 and A <b> 2 that are adjacent to each other are discontinuous at the bent portion 8 of the heat sink sheet 5. When folded, the dissipated heat dissipating sheet is separated at the discontinuous portion, and the heat medium tube 4 is a unit between the unit plate-like body A1 at the tube crossing portion between the opening 2a and the opening 2b. Over the plate-like body A2, it is folded in a mountain and exposed. Between the unit plate-like body A2 and the unit plate-like body A3, the heat radiation sheet 5 is continuous at the bent portion 8, functions as a hinge, and is valley-folded. Also in the group B constituting the heat sink 1, a mountain fold is formed between B1 and B2 and a valley fold is formed between B2 and B3 in the same manner as the group A.

  In FIG. 9, an example in which the tube crossing portion between the A group and the B group constituting the heat radiating plate 1 is provided in the unit plate bodies A1 and B1 is shown. The tube crossing portion is a valley fold.

The foldable heat sink according to the present invention is laid on a base material surface of a building such as a general house, a housing complex, a commercial building, or a hotel, and is used for preparing a heating floor.

It is a partial plane schematic of an example of the foldable heat sink which concerns on this invention. FIG. 2 is a schematic enlarged plan view of a portion II in FIG. 1. FIG. 3 is an enlarged schematic plan view of a portion III in FIG. 1. FIG. 4 is an enlarged schematic plan view of an IV portion (tube crossing portion) in FIG. 3. It is the vertical side surface schematic in the VV part of FIG. 3 of the heat sink which used the back material as the hinge. It is the vertical side surface schematic of the state in the middle of bending the back material as a hinge. It is a vertical side view schematic diagram of the state which completed bending from the state of FIG. It is the vertical side surface schematic corresponding to FIG. 3 of the heat sink which used the heat radiating sheet as the hinge. It is a plane top view of an example of the heat sink which can be folded which consists of six plate-shaped bodies.

Explanation of symbols

1: Heat radiation plate A1, A2, A3, B1, B2, B3: Unit plate-like body 2a: Heat medium tube outlet opening 2b: Heat medium tube inlet opening 3: Heat medium tube buried groove 4: Heat medium tube 5: Heat-dissipating sheets 7a and 7b: Heat-medium tube arrangement notch 8: bent portion 9: small root 10: header 11: bent portion in which both the heat-dissipating sheet and the back surface material are discontinuous 12: bent portion for mountain folding 13: Folded part to fold

Claims (1)

An embedding groove of the heat transfer tube is engraved on one surface, and a plurality of long narrow unit plate bodies (A1, B1) made of a synthetic foam resin plate are brought into contact with each other in the width direction. It is composed of two sets (A set, B set) of plate-like bodies that are arranged and have a substantially square shape, and the two sets (A set, B set) of plate-like bodies are end portions in the length direction. The same number is arranged in a discontinuous state, with the embedded grooves embedded in a state in which the heat medium tubes are connected to two sets (A group, B group) of plate-like bodies, and the heat medium tubes are embedded. In a foldable heat sink with a plurality of contact portions where the end portions of the adjacent plate-like bodies are in contact with each other, the radiating sheet is attached to the entire surface,
The unit plate-like bodies (A1, B1) constituting the two sets (A set, B set) of the plate-like bodies have the same thickness as the plate-like bodies along the length direction, and are slightly more than the plate-like bodies. A plurality of short wooden joists are arranged in parallel to each other at equal intervals.
Two sets (A set, B set) of plate-like bodies abut the lengthwise ends of the unit plate-like bodies (A1, B1) located at the end in the width direction of each set (A set, B set). , The heat medium tube is aggregated in one specific place and is made to have a structure that extends from one unit plate (A1) to the other unit plate (B1), and
A plurality of unit plate-like bodies constituting two sets (A set, B set) are end-to-end in the width direction, and are aggregated at a specific location in the middle of adjacent wooden small joists across the heat transfer medium tube. The unit plate-like body (A1) and the other unit plate-like body (A2) are structured so that the remaining unit plate-like bodies have the same structure.
The place where the heat transfer tube is passed over the other unit plate is between the two wooden small joists provided on each of the unit plate (A1) and unit plate (A2). The unit plate-shaped body width direction end of the heat medium tube outlet opening position and the other unit plate-shaped body width direction end of the heat medium tube inlet opening position are shifted without facing each other, and adjacent units A notch for heat medium tube placement is provided between both the openings on the wall surface in the width direction of the plate-like body, and the heat medium tube from the outlet opening is provided at the portion provided with the notch for heat medium tube placement. A foldable heat radiating plate, characterized in that either one of the heat radiating sheet surface or the back surface material of the plurality of bent portions is made discontinuous along the bent portion over the entrance opening.

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