JP5207774B2 - Manufacturing method of heat dissipation mat and heat dissipation mat - Google Patents

Description

  The present invention relates to a method of manufacturing a heat dissipating mat for heating and cooling a floor surface, and a heat dissipating mat manufactured by the manufacturing method.

  In recent years, floor heating (floor heating) of buildings (houses) has been widely used from the viewpoint of creating a comfortable environment for living. As a device for floor heating such as flooring, there is a hot water type heat dissipating mat (heating mat) (for example, see Patent Document 1).

  FIG. 7 shows an example of a heat dissipating mat developed by the present applicant together with a heat source device. As shown in the figure, the heat dissipating mat (heating mat) 11 has a plate-like mat main body 12, and the mat main body 12 is formed of foamed polystyrene or the like having a square shape. A plurality of slits that alternately extend in the side direction of the mating side are formed from the opposite sides of the mat body 12 in the longitudinal direction of the mat body 12 (side length direction of the opposite side), Small root 13 and small root 15 as aggregates are accommodated. The small joist 13 and the small joist 15 are usually made of wood rod-shaped squares having a square cross section, but may be a synthetic resin.

  One or more pipes (heat medium distribution pipes) 6 through which hot water, which is a heat medium for heat radiation (heating), passes around the small joists 13 on the upper surface side of the mat body 12 (example shown in FIG. 7) In the case of two, they are routed. Normally, a groove for wiring the pipe 6 is formed on the surface of the mat body 12, and the pipe 6 is accommodated in the groove and laid.

  Further, a heat radiating sheet (not shown) covering the surface of the mat body 12 is adhered to the surface side of the mat body 12 with an adhesive. This heat radiating sheet is usually formed of aluminum foil. A header 31 that connects the pipe 6 and the external pipe 18 is provided on the end side of the mat body 12, and the heat source device 20 is connected to the header 31 via the external pipe 18.

  The heat source device 20 is a heat source device having a hot water supply function for generating hot water (hot water) by heating water to be supplied, and the hot water generated by the heat source device 20 is supplied to the header 31 through the outgoing pipe of the external pipe 18. . The header 31 guides the hot water supplied from the heat source device 20 to the heat dissipating mat 11 and recirculates the hot water returning from the heat dissipating mat 11 (hot water having a lowered hot water temperature) through the return pipe of the external pipe 18. It plays a role of returning to the heat source device 20.

  When transporting the heat dissipating mat 11 as described above, for example, as shown in FIG. 8, the heat dissipating mat 11 is rounded in the array direction (lateral direction) of joists (small joists 13 and small joists 15) to form a rectangular parallelepiped. It was placed in a cardboard box and transported with a cardboard lid.

Japanese Patent Laid-Open No. 6-40718

  However, in recent years, a large-sized heat dissipating mat 11 has been used, and in the case of such a large heat dissipating mat 11, the method of rolling the heat dissipating mat 11 into a box as described above is applied. The length of the box becomes very long, for example, 3 m or more, which causes a problem that it is very difficult to carry. In addition, when the heat dissipating mat 11 is laid in a condominium or the like, it is transported using an elevator for construction. However, after the laying is found, an unsuitable part is found and removed, or a new heat dissipating mat 11 is obtained by renovation or the like. When it is going to attach, the conveyance becomes difficult.

  In order to solve this problem, the present inventor forms a mat body 12 by arranging a plurality of small mats 1 in a planar shape, for example, as shown in FIG. By forming the heat dissipating mat 11 by adhering the heat dissipating sheet 2 covering the surface of the mat main body 12 with an adhesive, the heat dissipating mat 11 is folded and formed in a box or the like. I thought it would be very easy to transport. Each small mat 1 is formed in a plate shape by using polystyrene foam or the like on which pipes 6 are disposed.

  However, in order to fold the heat dissipating mat 11 having the structure shown in FIG. 6, it is necessary to form notches at appropriate portions of the heat dissipating sheet 2. Since the use of a knife such as a knife or scissors is prohibited, it is difficult to appropriately cut the heat-dissipating sheet 2 from the outer end of the mat body 12 to an intermediate position.

  When cutting the heat-dissipating sheet 2 from end to end, it is considered that the heat-dissipating sheet 2 can be cut with a thread or the like without using a cutter knife. When cutting to a halfway position, the yarn used for cutting remains in the heat dissipating mat 11. For this reason, this thread becomes a hindrance and not only detracts from the beauty of the heat dissipating mat 11, but in some cases, an operator accidentally pulls the thread during construction of the heat dissipating mat 11, and cuts are formed in unnecessary portions. There is also a risk.

  That is, conventionally, there has been no method for appropriately forming the cut into the heat radiation sheet as described above from the outer end of the mat body 12 to the middle position without using a cutter such as a cutter knife or scissors. In this case, the folding configuration of the heat dissipating mat 11 is limited.

  The reason for prohibiting the use of cutter knives and the like in the factory is to prevent the pipe 6 from being accidentally scratched by the cutter knife, so that cutters such as cutter knives can be used in the factory. There will never be.

  The present invention has been made to solve the above-described conventional problems, and an object of the present invention is to provide a method for manufacturing a heat dissipating mat that can be folded and easily transported, and a heat dissipating mat manufactured by the method. .

In order to achieve the above object, the present invention comprises means for solving the above problems with the following configuration. That is, the manufacturing method of the heat dissipating mat of the first invention has a mat main body in which small plate-like mats provided with pipes through which a heat-dissipating heat medium passes are arranged two-dimensionally in a plane and without a plurality of gaps. , on the surface side of the mat body heat dissipation sheet for covering the mat body entire surface is bonded by an adhesive, to a plurality of positions of a boundary between the small mat to the mat body, said the mountain fold portion of the mat body Either a valley fold portion of the mat body or a separation portion of the mat body is formed, and a cut is formed in the heat dissipation sheet at a position corresponding to the mountain fold portion and the separation portion, and at least one of the cuts. One is forms a notch formed halfway position of the mat body, the heat radiation while the mat body forms a foldable as folds and the mountain fold portion and the valley folded portion A preparative production method, to determine the location of the cut formed on the heat dissipation sheet in a position corresponding to the mountain fold portion and the disconnecting portion of the boundary between the small mat by arranging the small mat in a plane A heat-dissipating sheet cutting thread member that is longer than the length of the incision forming portion and an adhesive tape having a lower adhesive strength than the heat-dissipating sheet-adhesive adhesive to the mat body. cuts are formed to the position, the adhesive to one end of the thread member on the upper surface or side of the site where the small mat notch is not formed on the heat dissipation sheet adjacent to the rear side than the forming position of the cut of the heat dissipation sheet depending on the tape fixed to and arranged along said cut-forming portion to the tip portion which is the other end side from the proximal end of the rear side which is one end side of the notch forming portions the yarn member, Other end side of the Kiito members after such protrude from the heat dissipation sheet, bonded with the adhesive the heat radiation sheet on the small mat over the adhesive tape and the thread member, protruding from the heat dissipation sheet after cutting the heat dissipation sheet over the thread member in the proximal portion from the distal portion of the incision forming portion by the thread member by pulling upward from the distal end of the incision forming portion, the thread member being fixed by the adhesive tape and a means for solving the problems with the configuration formed by, minus disconnect the.

Further, the heat dissipating mat of the second invention has a mat body in which small plate-like mats provided with pipes through which a heat-dissipating heat medium passes are arranged in a two-dimensional plane without a plurality of gaps. A heat radiating sheet covering the entire surface of the mat body is adhered to the surface of the main body with an adhesive, and the mat body is provided with a plurality of positions on the boundary between the small mats. Either a valley fold portion or a separation portion of the mat body is formed, and the heat dissipation sheet has a notch formed at a position corresponding to the mountain fold portion and the separation portion at the boundary between the small mats, by being manufactured using the manufacturing method of the heat dissipation mat of the first aspect of the invention, at least one of the cuts forms a cut is formed to the intermediate position of said mat body, said mat the There are forms and foldable and the mountain fold portion and the valley-folding portion as folds, said mat small mat of the also adjacent to the rear side of the formation position of the cut formed halfway position of the body cuts the The adhesive tape which has fixed the thread member for cutting the heat-dissipating sheet remains on the upper surface or side surface of the portion not formed on the heat-dissipating sheet .

  According to the method for manufacturing a heat dissipating mat of the present invention, the heat dissipating sheet covering the surface of the mat main body formed by arranging a plurality of small plate-like mats in a planar shape is provided on the mat main body from the position on the outer end side of the mat main body. An incision is formed up to a midpoint, and the incision is formed by using a heat dissipating sheet cutting thread member that is longer than the length of the incision forming portion, but this thread member does not remain in the heat dissipating mat. .

  That is, according to the present invention, the yarn is bonded to the upper surface or the side surface of the small mat portion where the cut is not formed adjacent to the base end side of the cut formation portion by an adhesive tape having a lower adhesive strength than the heat radiation sheet bonding adhesive. The base end side of the member is fixed, and the heat dissipation sheet is adhered to the small mat from above the adhesive tape and the thread member by the adhesive, so that the portion of the thread member that protrudes from the heat dissipation sheet is on the upper side. After pulling up and cutting from the distal end side to the proximal end side of the notch forming portion, and then pulling out the thread member fixed by the adhesive tape from the proximal end portion of the notch forming portion, the thread member can be pulled out. It is possible to prevent the member from remaining on the heat dissipating mat.

  Thus, according to the method for manufacturing a heat dissipating mat of the present invention, the heat dissipating sheet can be cut from the outer end of the mat main body to a middle position without leaving the thread member, so that the mat main body is piled up. It is possible to manufacture heat dissipating mats with various folding configurations that can be folded using the folds and the valley folds as folds. In addition, the heat dissipating mat of the present invention can be a heat dissipating mat that can be easily transported by being folded during transport.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description of the embodiments, the same reference numerals are given to the same portions as those of the already described drawings, and the duplicate description will be omitted or simplified.

  FIG. 2A shows a schematic plan view of a first embodiment of the heat dissipating mat of the present invention. As in the heat dissipating mat 11 shown in FIG. 6, the heat dissipating mat 11 of the present embodiment has a plurality of plate-like small mats 1 in which pipes 6 (not shown in FIG. 2) are arranged in a plane. The mat body 12 is formed, and an aluminum foil heat dissipating sheet 2 is adhered to the surface of the mat body 12 with an adhesive. In the small mat 1, as in the example shown in FIG. 6, a small root 13 and a small root 15 (not shown in FIG. 2) are arranged in the slit.

  In this embodiment, the heat dissipating sheet 2 has notches 3 (3a, 3b) at two different positions on the outer end side of the mat body 12 (upper right center and upper left center in FIG. 2 (a)). Part) to the middle position of the mat body 12, and these cuts 3 are formed along the arrangement boundary between the small mats 1. That is, the heat dissipating mat 11 is cut off at the position where the notch 3 is formed.

In addition, two cuts 4 (4a, 4b) are formed to extend in parallel from the end to the end of the mat body 12 (from the upper end to the lower end in FIG. 2 ). The portions where the cuts 4a and 4b are formed are portions corresponding to the broken lines AA and BB in FIG. 6 and are different from the arrangement boundary between the small mats 1.

  Each small mat 1 is formed of foamed polystyrene or the like, has elasticity, and can be bent appropriately. However, the heat dissipating mat 11 is folded in a mountain (so that the surface side of the heat dissipating mat 11 is a mountain). In the mountain fold portion, the mountain fold is made possible by making cuts 4a and 4b in the heat radiation sheet 2 on the surface side.

  The heat dissipating mat 11 according to the present embodiment has a mat formed by using the mountain fold portion in which the cuts 4a and 4b are formed and the valley fold portion 5 in which the cut of the arrangement boundary between the small mats 1 is not formed. The main body 12 can be folded in the direction of the arrow as shown in FIG. 2 (b) and can be folded as shown in FIG. 2 (c).

  The present embodiment is configured as described above. When the heat dissipating mat 11 according to the present embodiment is manufactured, the small mats 1 are arranged in a plane as shown in FIG. The small mats 1 on the upper side from the formation position of the valley fold portion 5 are bonded together, and the lower small mats 1 are bonded together. In addition, the arrangement of the pipe 6, the arrangement method of the small joists 13, the small joists 15, the attachment method of the header 31, etc. can be applied to a conventionally proposed method or an appropriate method proposed in the future. Since there is, detailed description thereof is omitted.

  In the method of manufacturing the heat dissipating mat 11 according to this embodiment, the method of forming the cuts 3a and 3b in the heat dissipating sheet 2 up to the middle position of the mat body 12 is a characteristic method as described below.

  First, the positions of the cuts 3a and 3b formed in the heat radiating sheet 2 are determined at the arrangement boundary between the small mats 1 adjacent to each other on the top and bottom of the mat body 12. A heat radiating sheet cutting thread member 8 (see FIG. 1A) longer than the length of the cut portions 3a and 3b (cut formed portions) is prepared. As the thread member 8, for example, a kite thread can be applied. Further, FIG. 1 shows only the method of forming the notch 3b, but the method of forming the notch 3a is the same as the method of forming the notch 3b.

  Then, for example, as shown in FIG. 1 (a), a portion of the small mat 1 (here, between the small mats 1) where the cuts 3a and 3b are not formed is adjacent to the base end side of the formation portion of the cuts 3a and 3b. The base end side of the thread member 8 is attached to the upper surface of the arrangement boundary portion by an adhesive tape 9 having a lower adhesive strength than the adhesive for adhering the heat dissipating sheet (adhesive adhering the heat dissipating sheet 2 to the small mat 1). Fix it. As the adhesive tape 9, a cellophane tape (cellophane is a trademark) can be applied, and the thread member 8 may be arranged in a circle shape and fixed by the adhesive tape 9. Further, the thread member 8 is arranged along the notch forming portion so that the tip end side of the thread member 8 protrudes from the heat radiation sheet 2. The protruding thread member 8 may be temporarily fixed to the end portion of the small mat 1 with a tape 19 or the like having a weak adhesive force as shown by a broken line portion in the figure.

  And as shown in FIG.1 (b), the said heat radiating sheet 2 was adhere | attached with the said adhesive agent on the said small mat 1 from the said adhesive tape 9 and the said thread | yarn member 8, and it protruded from the heat radiating sheet 2 after that. As shown by the arrow B in the figure, the thread member 8 is pulled upward, the thread member 8 is pulled up from the front end of the notch forming portion, and the heat radiating sheet 2 is moved by the thread member 8 to the front end side of the notch forming portion. Cut from the base end side. At this time, the heat radiating sheet 2 made of aluminum foil is cut while sticking (bonding) to the thread member 8.

  Thereafter, as shown by an arrow C in FIG. 1 (c), the thread member 8 is pulled in a substantially horizontal direction, and the thread member 8 fixed by the adhesive tape 9 is pulled out from the base end portion of the notch forming portion. The adhesive tape 9 has a weaker adhesive force than the adhesive that bonds the heat dissipation sheet 2 to the small mat 1, so that the thread member 8 is peeled off from the adhesive tape 9 and easily pulled out.

  The heat dissipating mat 11 according to the present embodiment is adjacent to the base end side of the cuts 3a and 3b, and the upper surface of the arrangement boundary between the small mats 1 where the cuts 3a and 3b are not formed The adhesive tape 9 that has fixed the cutting thread member 8 remains, but the adhesive tape 9 does not adversely affect the heat dissipating mat 11.

  Moreover, in this embodiment, the operation | work which forms the said cut | notches 4a and 4b can be performed as follows, for example. The thread member 8 is disposed along the positions where the notches 4a and 4b are formed, and the heat dissipation sheet 2 is fixed on the small mat 1 with an adhesive. At this time, at least one end side of the thread member 8 protrudes from the heat dissipation sheet 2, the protruding thread member 8 is pulled up, the heat dissipation sheet 2 is cut by the thread member 8, and then the thread member 8 is pulled out. That's fine.

  According to the present embodiment, as described above, the cuts 3a and 3b can be easily formed as designed in the heat radiating sheet 2 up to the middle position of the mat body 12 without using a cutter such as a cutter knife. In addition, since the thread member 8 for forming the notches 3a and 3b is not left, the problem when the thread member 8 remains can be solved, and a heat dissipating mat that can be folded and easily transported is easily obtained. Can be manufactured.

  Next, a second embodiment of the heat dissipating mat according to the present invention will be described. In the following description, the same reference numerals are given to the same name portions as those of the conventional example and the first embodiment, and the duplicate description thereof is omitted or simplified.

  FIG. 3A schematically shows a plan view of the heat dissipating mat 11 of the second embodiment. The second embodiment is configured in substantially the same manner as the first embodiment. The second embodiment is different from the first embodiment in that the heat dissipating sheet 2 includes the mat body. A notch 3 (3a) is formed from one position (the left end in the figure) on the outer end side of 12 to the middle position of the mat body 12 along the boundary between the small mats 1. That is, a valley fold 5 is formed between the small mats 1 on the right end side.

  In the second embodiment, the mat body 12 is formed as shown in FIG. 3 (b) with the mountain fold portion of the mat body 12 (in this example, the portions where the cuts 4a and 4b are formed) and the valley fold portion 5 as folds. ) Is folded in the direction of the arrow, as shown in FIG.

  Similarly to the first embodiment, the second embodiment is also formed with the notches 3a to manufacture the heat dissipating mat 11, and can achieve the same effects as the first embodiment.

  In addition, this invention is not limited to the said embodiment, It can take various aspects. For example, in each of the above-described embodiments, the small mats 1 are arranged in the manner shown in FIG. 6 to form the mat main body 12. However, the number, size, and arrangement of the small mats 1 forming the mat main body 12 are described. The form or the like of the pipe 6 formed on the small mat 1 is not particularly limited, and may be set as appropriate. The creases may be formed without crossing the small joists 13. And according to the arrangement | sequence aspect of the small mat 1, this invention determines the formation position of the notches 3 and 4 formed in the thermal radiation sheet 2, and the formation position of the mountain fold part and the valley fold part 5, and appropriate heat dissipation mat 11 is formed.

  For example, in the heat dissipating mat 11 having the mat body 12 (see FIG. 6) formed by arranging the small mats 1 in the same arrangement manner as in the above embodiments, the heat dissipating mat of the aspect shown in FIG. 11 can also be formed. The heat dissipating mat 11 is formed by forming notches 3 (3a, 3b, 3c) and valley folds 5 in the heat dissipating sheet 2, and folding the mat body 12 with the forming portions of the notches 3a, 3b, 3c as mountain folds. It is possible.

  In this example, for example, when the cut 3a is formed, the thread member 8 is disposed along the formation region of the cut 3a while changing the direction in the middle (intersection of the cut 3a and the cut 3b). Thus, it is possible to form the cut 3a having a bent portion. FIG. 4B shows an example in which cuts are formed in the same manner as in FIG. 4A. However, as shown in FIG. 4B, the mat body 12 extends from the upper end to the lower end. If the tip part of the thread member 8 that forms the notch 3a is arranged in the formed part of the notch 4 and the tip side of the thread member 8 protrudes from the heat dissipation sheet 2 after the notch 4 is formed, The cut 3a can be formed by the same method as in the embodiment.

  Further, in each of the above embodiments, the base end side of the thread member 8 is fixed by the adhesive tape 9 on the upper surface of the portion of the small mat 1 where the notch 3 is not formed. For example, as shown in FIG. You may make it fix the base end side of the thread | yarn member 8 with the adhesive tape 9 to the side surface of the arrangement | sequence boundary part between the small mats 1 in which the notch | incision 3 is not formed.

  In this case, as shown by the arrow B in FIG. 2, the thread member 8 is pulled upward, and the heat radiating sheet 2 is cut by the thread member 8 from the distal end side to the proximal end side of the cut forming portion, By pulling the thread member 8 upward, the thread member 8 fixed by the adhesive tape 9 can be pulled out. That is, there is an advantage that the thread member 8 can be pulled out without changing the pulling direction of the thread member 8.

  Further, when the thread member 8 is fixed to the upper surface of the small mat 1, if the pipe 6 is disposed under the adhesive tape 9, the pipe member 6 and the heat radiating sheet 2 are disposed more than the heat radiating sheet 2. Since the adhesive tape 9 having a low thermal conductivity is interposed, and the heat of the pipe 6 is dissipated to the surface side of the heat dissipating mat 11, heat dissipating is hindered. However, when the thread member 8 is fixed to the side surface of the small mat 1, there is an advantage that such attention is not necessary.

  The adhesive tape 9 may be provided on the back surface of the small mat 1 to fix the thread member 8. Also in this case, the thread member 8 can be pulled out without changing the pulling direction. Further, when the base end side of the thread member 8 is fixed to the back surface or the side surface of the small mat 1 with the adhesive tape 9, it remains on the small mat 1 when the mat body 12 is folded after the thread member 8 is pulled out. Since the adhesive tape 9 can be peeled off, there is an advantage that the merchantability is enhanced.

  Furthermore, the heat dissipating mat of the present invention is used not only for the heating mat that heats the pipe 6 through warm water but also for cooling applications by passing cold water (unheated water) having a temperature lower than room temperature through the pipe 6. It is good also as a mat.

It is explanatory drawing which shows typically the thermal radiation sheet cutting process in 1st Embodiment of the manufacturing method of the thermal radiation mat which concerns on this invention. It is typical explanatory drawing explaining the folding structure of the heat sink mat manufactured by applying the manufacturing method of the heat sink mat of 1st Embodiment. It is typical explanatory drawing explaining the folding structure of the heat sink mat manufactured by applying the manufacturing method of the heat sink mat of 2nd Embodiment. It is typical explanatory drawing explaining the plane composition of the heat sink mat manufactured by applying the manufacturing method of the heat sink mat of other embodiments. Furthermore, it is typical explanatory drawing of the thread | yarn member fixing process in the manufacturing method of the heat radiating mat of other embodiment examples. It is explanatory drawing which shows an example of a thermal radiation mat. It is explanatory drawing which shows an example of the conventional heat radiating mat. It is explanatory drawing which shows the winding structural example in the packaging of the conventional heat radiating mat.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Small mat 2 Heat radiation sheet 3, 4 Cut 5 Valley fold 6 Pipe 8 Thread member 9 Adhesive tape 11 Heat radiation mat 12 Mat body

Claims (2)

A plate-like small mat provided with a pipe through which a heat-dissipating heat medium passes is arranged in a two-dimensional plane without a plurality of gaps , and the entire surface of the mat body is provided on the surface of the mat body. thermal spreading sheet covering is adhesively bonded, to a plurality of positions of a boundary between the small mat to the mat body, the valley folding portion and disconnecting portion of the mat body of mountain fold portion and the mat body of the mat body Any one is formed, and the heat radiating sheet has a cut formed at a position corresponding to the mountain fold portion and the separation portion, and at least one of the cuts is formed to a midway position of the mat body. form, wherein the mat body is a method for producing a heat radiation mat forms a foldable as folds and the mountain fold portion and the valley folding portion, the small mat in a plane And column determines the position of the cut is formed in the heat dissipation sheet in a position corresponding to the mountain fold portion and the disconnecting portion of the boundary between the small mat, longer heat dissipation sheet for cutting than the length of the incision forming portion thread member and than the adhesive for the heat dissipation sheet adhesion to the mat body prepared with weak adhesive tape adhesion, cuts are formed halfway position of the mat body, the one end of the thread member cut the said fixed to said thread member by the adhesive tape cut formed on the upper surface or side of the portion cut the small mat adjacent are not formed on the heat radiation sheet to the back side than the formation position of the heat dissipation sheet along the cut forming portion disposed from the back side of the base end portion which is one end side portion to the tip portion which is the other end side, the other end of the thread member protrudes from the heat dissipation sheet After was Unishi, upwardly from said adhesive tape and said heat dissipating sheet on the small mat over the thread member adhered by said adhesive, said distal end portion of the cut forming portion the thread member protruding from the heat radiation sheet in pulling up and forming after cutting the cut-forming region of the tip portion the heat dissipation sheet over the proximal end of the said thread member, and disconnect pull the thread member which is fixed by the adhesive tape radiator Manufacturing method of mat. A plate-like small mat provided with a pipe through which a heat-dissipating heat medium passes is arranged in a two-dimensional plane without a plurality of gaps , and the entire surface of the mat body is provided on the surface of the mat body. A heat-dissipating sheet covering the mat body is adhered to the mat body by a plurality of positions on the boundary between the small mats, and the mat body has a mountain fold portion, a mat body valley fold portion, and a mat body separation portion. Any one is formed, The said heat radiating sheet is formed with cuts at positions corresponding to the mountain fold portion and the separation portion at the boundary between the small mats, and using the method for manufacturing a heat radiating mat according to claim 1. by being manufactured Te, at least one forms a notch formed halfway position of said mat body, said mat body folding the valleys and the mountain fold portion portions of said notches The and forms the foldable as folds, the upper surface or side of the site where the small mat of the adjacent inner side than the forming positions of notches formed halfway position of said mat body notch is not formed on the heat dissipation sheet The heat-dissipating mat is characterized in that the adhesive tape that has fixed the thread member for cutting the heat-dissipating sheet remains.

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