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WO2018173152A1 - Structure de génération de chaleur - Google Patents

Structure de génération de chaleur Download PDF

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Publication number
WO2018173152A1
WO2018173152A1 PCT/JP2017/011456 JP2017011456W WO2018173152A1 WO 2018173152 A1 WO2018173152 A1 WO 2018173152A1 JP 2017011456 W JP2017011456 W JP 2017011456W WO 2018173152 A1 WO2018173152 A1 WO 2018173152A1
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WO
WIPO (PCT)
Prior art keywords
main surface
substrate
heat generating
generating structure
transfer plate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2017/011456
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English (en)
Japanese (ja)
Inventor
直輝 大高
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Olympus Corp
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Olympus Corp
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Publication date
Application filed by Olympus Corp filed Critical Olympus Corp
Priority to PCT/JP2017/011456 priority Critical patent/WO2018173152A1/fr
Publication of WO2018173152A1 publication Critical patent/WO2018173152A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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  • the present invention relates to a heat generating structure.
  • the heat generating structure (multilayer structure heating panel) described in Patent Document 1 includes a substrate (lightweight core layer), an electric resistance pattern (heating element), a heat transfer plate (floor cover), and an adhesive member (adhesive).
  • the substrate is made of an insulating material and has a first main surface.
  • the electrical resistance pattern is provided on the first main surface and generates heat when energized.
  • the heat transfer plate has a second main surface facing the first main surface.
  • the adhesive member is interposed between the first and second main surfaces and adheres and fixes the substrate and the heat transfer plate.
  • the present invention has been made in view of the above, and an object of the present invention is to provide a heat generating structure capable of improving the dielectric strength even when it is downsized.
  • a heat generating structure is made of an insulating material, has a first main surface, and is provided on the first main surface.
  • a first adhesion region located on an outer edge side and separated from the second main surface by a first separation distance in a laminated cross section of the substrate, the heat transfer plate, and the adhesive member; A second adhesion region separated from the main surface by a second separation distance longer than the first separation distance; Having.
  • the dielectric strength can be improved even if it is downsized.
  • FIG. 1 is a view showing a heat generating structure according to the first embodiment.
  • 2 is a cross-sectional view taken along line II-II shown in FIG.
  • FIG. 3 is a perspective view of the substrate as viewed from the first main surface side.
  • FIG. 4 is an enlarged view of a part of FIG.
  • FIG. 5 is a view showing a heat generating structure according to the second embodiment.
  • FIG. 6 is a diagram showing a heat generating structure according to the third embodiment.
  • FIG. 7 is a view showing a heat generating structure according to the fourth embodiment.
  • FIG. 8 is a diagram showing a heat generating structure according to the fifth embodiment.
  • FIG. 9 is a diagram illustrating a convex portion according to the sixth embodiment.
  • FIG. 1 is a view showing a heat generating structure 1 according to the first embodiment.
  • FIG. 1 is a plan view of the heat generating structure 1 viewed from the side opposite to the heat transfer plate 2.
  • 2 is a cross-sectional view taken along line II-II shown in FIG.
  • the heat generating structure 1 is a heater that heats an object (including air) to be heated.
  • the heat generating structure 1 includes a heat transfer plate 2, a substrate 3, an electric resistance pattern 4 (FIG. 2), and an adhesive member 5.
  • the heat transfer plate 2 is a long plate (a long shape extending in the left-right direction in FIG. 1) made of a material such as copper, for example.
  • the heat exchanger plate 2 contacts a target object in the lower surface 21 in FIG. 2, and transfers the heat from the electrical resistance pattern 4 to the target object.
  • the upper surface in FIG. 2 in the heat exchanger plate 2 is equivalent to the 2nd main surface 20 which concerns on this invention.
  • FIG. 3 is a perspective view of the substrate 3 as viewed from the first main surface 30 side.
  • the substrate 3 includes a substrate body 31 and a protrusion 32 (FIGS. 2 and 3) that are integrally formed of the same material.
  • the substrate body 31 is a flat plate having a long shape (a long shape extending in the left-right direction in FIG. 1).
  • the width dimension of the substrate body 31 is set to be smaller than the width dimension of the heat transfer plate 2 as shown in FIG.
  • the length dimension (length dimension in the longitudinal direction) of the substrate 3 is set to be longer than the length dimension (length dimension in the longitudinal direction) of the heat transfer plate 2.
  • the convex portion 32 is a portion protruding from the lower surface in FIG.
  • both ends of the convex portion 32 are located on one end side (the right end portion side in FIG. 1) of the substrate body 31, and extend from one end to the other end in a U shape in a plan view following the outer edge shape of the substrate body 31.
  • Exists FIG. 3
  • the front end surface of the convex portion 32 is a flat surface.
  • the lower surface of the substrate 3 in FIG. 2 corresponds to the first main surface 30 according to the present invention. That is, the first main surface 30 is composed of the lower surface of the substrate body 31 in FIG. 2 and the outer surface of the convex portion 32, and the convex portion 32 has an uneven shape.
  • substrate 3 demonstrated above is comprised from insulating materials, such as a polyimide, for example.
  • the material of the substrate 3 is not limited to polyimide, and for example, a high heat insulating material such as aluminum nitride, alumina, glass, zirconia may be adopted.
  • the electrical resistance pattern 4 is obtained by processing stainless steel (SUS304), which is a conductive material. As shown in FIG. 2 or FIG. 3, as shown in FIG. 2 or FIG. Are bonded together by thermocompression bonding. Specifically, both ends of the electrical resistance pattern 4 are located on one end side (the right end portion side in FIG. 1) of the substrate body 31, and the outer edge shape of the substrate body 31 is meandering from one end to the other end in a wavy shape. Extends in a U-shape in plan view (FIG. 3). That is, as shown in FIG. 3, the electrical resistance pattern 4 includes a first pattern portion 41 and a second pattern portion 42 located on the outer edge side of the first pattern portion 41. Two lead wires C1 and C2 (FIG.
  • the electrical resistance pattern 4 generates heat when a voltage is applied (energized) through the two lead wires C1 and C2.
  • the material of the electrical resistance pattern 4 is not limited to stainless steel (SUS304), and other stainless steel materials (for example, No. 400 series) may be used, or conductive materials such as platinum and tungsten may be adopted.
  • the electrical resistance pattern 4 is not limited to the configuration in which the first main surface 30 is bonded to the first main surface 30 by thermocompression bonding, but may be a configuration formed on the first main surface 30 by vapor deposition or the like.
  • the adhesive member 5 is interposed between the first and second main surfaces 30 and 20, and one end side (right end side in FIG. 1) of the substrate 3 conducts heat.
  • the substrate 3 and the heat transfer plate 2 are bonded and fixed while projecting from one end side of the plate 2 (right end side in FIG. 1).
  • This adhesive member 5 is a long sheet (long form extending in the left-right direction in FIG. 1) that has good thermal conductivity and electrical insulation, withstands high temperatures, and has adhesiveness.
  • a high thermal conductive filler non-conductive material
  • a resin such as epoxy or polyurethane.
  • the width dimension of the adhesive member 5 is set to be larger than the width dimension of the substrate body 31 and smaller than the width dimension of the heat transfer plate 2. Further, the length dimension (length dimension in the longitudinal direction) of the adhesive member 5 is longer than the length dimension (length dimension in the longitudinal direction) of the heat transfer plate 2, and the length dimension (length direction in the longitudinal direction) of the substrate body 31. It is set to be shorter than the length dimension).
  • the adhesive member 5 adheres and fixes the substrate 3 and the heat transfer plate 2 so that the electrical resistance pattern 4 and the heat transfer plate 2 are electrically insulated. Specifically, as shown in FIG. 1, the adhesive member 5 has its outer edge side protruding from the outer edge of the substrate body 31, and one end side (right end side in FIG. 1) is one end of the heat transfer plate 2 (see FIG. 1). 1, the substrate 3 and the heat transfer plate 2 are bonded and fixed in a state of protruding from the right end portion.
  • FIG. 4 is an enlarged view of a part of FIG.
  • the bonding surface 6 between the bonding member 5 and the first main surface 30 has first and second bonding regions Ar1 and Ar2, as shown in FIG. .
  • the first adhesion region Ar1 is located on the outer edge side of the position where the electrical resistance pattern 4 is disposed, and is separated from the second main surface 20 by the first separation distance D1 in the laminated cross section of the heat generating structure 1. This corresponds to the tip surface of the convex portion 32.
  • the first separation distance D1 is set to be longer than the third separation distance D3 between the electrical resistance pattern 4 and the second main surface 20.
  • the second adhesion region Ar2 is located on the outer edge side of the convex portion 32, and is a second separation that is longer than the first separation distance D1 with respect to the second main surface 20 in the laminated cross section of the heat generating structure 1. This is a region separated by a distance D2, and corresponds to the lower surface of the substrate body 31 in FIG.
  • the creepage distance CD from the electrical resistance pattern 4 to the heat transfer plate 2 is changed from the electrical resistance pattern 4 to the substrate body 31 as shown by the solid line arrow in FIG. In FIG. 4, the distance is a long distance from the lower surface, the outer surface of the convex portion 32, and the outer surface of the adhesive member 5 to the second main surface 20 of the heat transfer plate 2.
  • the creeping distance CD ′ from the electric resistance pattern 4 to the heat transfer plate 2 is the electric resistance pattern as shown by the broken arrow in FIG. 4, a short distance from the lower surface of the substrate body 31 in FIG. 4 and the outer surface of the adhesive member 5 to the second main surface 20 of the heat transfer plate 2.
  • the adhesive surface 6 between the adhesive member 5 and the first main surface 30 is located on the outer edge side of the position where the electric resistance pattern 4 is disposed, and the heat generating structure In the laminated cross section of the body 1, the first adhesion region Ar 1 separated from the second main surface 20 by the first separation distance D 1 and the first separation distance D 1 from the second main surface 20 than the first separation distance D 1. And a second adhesion region Ar2 separated by a long second separation distance D2.
  • the creepage distance CD from the electrical resistance pattern 4 to the heat transfer plate 2 can be made longer than the conventional creepage distance CD ′, and the dielectric strength is improved.
  • the convex portion 32 is provided on the substrate 3 and the first and second adhesion regions Ar1 and Ar2 are formed by the uneven shape of the first main surface 30, the dielectric strength of the heat generating structure 1 with a simple structure. Can be improved.
  • the bonding area between the first main surface 30 of the substrate 3 and the adhesive member 5 is increased, the adhesive force between the substrate 3 and the adhesive member 5 can also be improved.
  • the first separation distance D1 is set to be longer than the third separation distance D3 between the electric resistance pattern 4 and the second main surface 20. ing. For this reason, it is possible to avoid the occurrence of dielectric breakdown between the first adhesion region Ar1 and the second main surface 20 while making the creepage distance CD longer than the conventional creepage distance CD ′.
  • FIG. 5 is a view showing a heat generating structure 1A according to the second embodiment. Specifically, FIG. 5 is a cross-sectional view corresponding to FIG. In the heat generating structure 1A according to the second embodiment, as shown in FIG. 5, a substrate 3A different from the substrate 3 is adopted as compared to the heat generating structure 1 described in the first embodiment.
  • the substrate 3A is made of the same material as the substrate 3 described in the first embodiment and is a heat transfer plate on the first main surface 30A with respect to a flat plate having the same planar shape as the substrate body 31.
  • a recess 32A (FIG. 5) is provided which is recessed on the side away from 2. Specifically, both ends of the recess 32A are positioned on one end side (the right end portion side in FIG. 1) of the substrate 3A, and extend from one end to the other end in a U shape in a plan view following the outer edge shape of the substrate 3A. To do.
  • the bottom surface of the recess 32A is a flat surface. That is, the first main surface 30A has an uneven shape due to the recess 32A.
  • the electrical resistance pattern 4 according to the second exemplary embodiment is provided inside a concave portion 32 ⁇ / b> A having a U shape in a plan view on the first main surface 30 ⁇ / b> A.
  • the adhesive surface 6A between the adhesive member 5 and the first main surface 30A has first and second adhesive regions Ar1, Ar2 as shown in FIG.
  • the first adhesion region Ar1 is located on the outer edge side of the arrangement position of the electrical resistance pattern 4, and is separated from the second main surface 20 by the first separation distance D1 in the laminated cross section of the heat generating structure 1A. This is a flat region.
  • the first separation distance D1 is set to be longer than the third separation distance D3 between the electric resistance pattern 4 and the second main surface 20.
  • the second adhesion region Ar2 is located on the outer edge side of the first adhesion region Ar1, and is a laminated cross section of the heat generating structure 1A and is longer than the first separation distance D1 with respect to the second main surface 20. 2 is a region separated by a separation distance D2, and corresponds to the bottom surface of the recess 32A. That is, in the heat generating structure 1A according to the second embodiment, the creepage distance from the electrical resistance pattern 4 to the heat transfer plate 2 is the same as that in the conventional heat generating structure 1 described in the first embodiment. It is longer than the distance.
  • FIG. 6 is a view showing a heat generating structure 1B according to the third embodiment. Specifically, FIG. 6 is a cross-sectional view corresponding to FIG.
  • a substrate 3B different from the substrate 3 is adopted with respect to the heat generating structure 1 described in the first embodiment.
  • the substrate 3B is obtained by configuring the substrate body 31 and the convex portion 32 as separate members with respect to the substrate 3 described in the first embodiment, and integrating them with each other.
  • the substrate 3 ⁇ / b> B includes a substrate body 31 ⁇ / b> B that is made of the same material as the substrate body 31 and has the same shape, and a protrusion 32 ⁇ / b> B that has the same shape as the protrusion 32.
  • a material of the convex part 32B any material may be adopted as long as it is an insulating material.
  • the 1st main surface 30B which concerns on this Embodiment 3 is comprised by the lower surface and the outer surface of the convex part 32B in FIG. 6 in the board
  • FIG. 7 is a view showing a heat generating structure 1C according to the fourth embodiment. Specifically, FIG. 7 is a cross-sectional view corresponding to FIG. As shown in FIG. 7, the heating structure 1 ⁇ / b> C according to the fourth embodiment employs a substrate 3 ⁇ / b> C different from the substrate 3 with respect to the heating structure 1 described in the first embodiment.
  • the substrate 3C is made of the same material as that of the substrate 3 described in the first embodiment, and has a peripheral edge portion as shown in FIG.
  • the first main surface 30C according to the fourth embodiment includes a flat portion located inside the outer edge portion and a bent outer edge portion, and has a curved shape.
  • the adhesive surface 6C between the adhesive member 5 and the first main surface 30C has first and second adhesive regions Ar1, Ar2 as shown in FIG.
  • the first adhesion region Ar1 is located on the outer edge side with respect to the arrangement position of the electrical resistance pattern 4, and is separated from the second main surface 20 by the first separation distance D1 in the laminated section of the heat generating structure 1C.
  • the first separation distance D1 is set to be longer than the third separation distance D3 between the electrical resistance pattern 4 and the second main surface 20.
  • the second adhesion region Ar2 is located on the outer edge side of the position where the electrical resistance pattern 4 is disposed, and is located on the inner side of the first adhesion region Ar1, and is a laminated cross section of the heat generating structure 1C.
  • This is a flat region that is separated from the surface 20 by a second separation distance D2 that is longer than the first separation distance D1. That is, in the heating structure 1C according to the fourth embodiment, the creepage distance from the electrical resistance pattern 4 to the heat transfer plate 2 is the same as that of the conventional creeping structure, as in the heating structure 1 described in the first embodiment. It is longer than the distance.
  • FIG. 8 is a diagram showing a heat generating structure 1D according to the fifth embodiment. Specifically, FIG. 8 is a cross-sectional view corresponding to FIG.
  • a substrate 3D different from the substrate 3 is adopted for the heat generating structure 1 described in the first embodiment.
  • the substrate 3D has a curved shape in which the outer edge portion is bent toward the heat transfer plate 2 in the substrate 3C described in the above-described fourth embodiment.
  • the outer edge portion is on the side away from the heat transfer plate 2.
  • the curved shape is bent. That is, the first main surface 30D according to the fifth embodiment includes a flat portion located inside the outer edge portion and a bent outer edge portion, and has a curved shape.
  • the adhesive surface 6D between the adhesive member 5 and the first main surface 30D has first and second adhesive regions Ar1, Ar2 as shown in FIG.
  • the first adhesion region Ar1 is located on the outer edge side with respect to the arrangement position of the electrical resistance pattern 4, and is separated from the second main surface 20 by the first separation distance D1 in the laminated cross section of the heat generating structure 1D. This is a flat region.
  • the first separation distance D1 is set to be longer than the third separation distance D3 between the electric resistance pattern 4 and the second main surface 20.
  • the second adhesion region Ar2 is located on the outer edge side of the first adhesion region Ar1, and is a laminated cross section of the heat generating structure 1D and is longer than the first separation distance D1 with respect to the second main surface 20. 2 is a region separated by a separation distance D2, and corresponds to a bent outer edge portion of the substrate 3D. That is, in the heat generating structure 1D according to the fifth embodiment, the creepage distance from the electric resistance pattern 4 to the heat transfer plate 2 is the same as that in the conventional heat generating structure 1 described in the first embodiment. It is longer than the distance.
  • FIG. 9 is a diagram illustrating a convex portion 32E according to the sixth embodiment. Specifically, FIG. 9 corresponds to FIG.
  • a convex portion 32E having a shape different from the convex portion 32 described in the first embodiment is employed. As shown in FIG. 9, the convex portion 32 ⁇ / b> E leaves only the portion facing the second pattern portion 42 and the portion facing the first pattern portion 41 in the convex portion 32 described in the first embodiment. It is omitted. That is, a plurality of convex portions 32E are provided.
  • the 1st main surface 30E which concerns on this Embodiment 6 is comprised by the upper surface in FIG. 9 in the board
  • the first and second adhesion regions Ar 1 and Ar 2 according to the sixth embodiment are connected to each other only on the outer edge side of the second pattern portion 42.
  • the shapes of the substrates 3, 3A to 3E are not limited to the shapes described in the first to sixth embodiments, and the first and second adhesion regions Ar1 and Ar2 are formed. Any other shape can be used as long as it can be used.
  • the shape of the heat transfer plate 2 may be different from the shape described in the first to sixth embodiments.
  • the surface 21 of the heat transfer plate 2 may be formed in a cross-sectional shape such as a convex shape, a concave shape, or a mountain shape instead of a flat surface.
  • the first separation distance D1 may be set to be the same as the third separation distance D3 or shorter than the third separation distance D3.

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Abstract

La présente invention concerne une structure de génération de chaleur pourvue : d'un substrat 3, qui est formé d'un matériau isolant, et qui a une première surface principale 30 ; d'un motif de résistance électrique 4, qui est disposé sur la première surface principale 30, et qui génère de la chaleur lorsqu'un courant est porté sur celle-ci ; d'une plaque de transfert de chaleur 2 ayant une seconde surface principale 20 faisant face à la première surface principale 30 ; et d'un élément adhésif 5, qui a des propriétés d'isolation électrique, et qui est disposé entre les première et seconde surfaces principales 30, 20, ledit élément adhésif adhérant et fixant le substrat 3 et la plaque de transfert de chaleur 2 l'un à l'autre. Des surfaces adhésives 6 entre l'élément adhésif 5 et la première surface principale 30 sont respectivement positionnées davantage vers le côté d'extrémité externe que la position dans laquelle le motif de résistance électrique 4 est disposé, et dans une section transversale de stratifié de la structure de génération de chaleur, les surfaces adhésives ont une première région adhésive Ar1, qui est séparée de la seconde surface principale 20 par une première distance de séparation, et une seconde région adhésive Ar2, qui est séparée de la seconde surface principale par une seconde distance de séparation D2 qui est plus longue que la première distance de séparation D1.
PCT/JP2017/011456 2017-03-22 2017-03-22 Structure de génération de chaleur Ceased WO2018173152A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2017/011456 WO2018173152A1 (fr) 2017-03-22 2017-03-22 Structure de génération de chaleur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2017/011456 WO2018173152A1 (fr) 2017-03-22 2017-03-22 Structure de génération de chaleur

Publications (1)

Publication Number Publication Date
WO2018173152A1 true WO2018173152A1 (fr) 2018-09-27

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PCT/JP2017/011456 Ceased WO2018173152A1 (fr) 2017-03-22 2017-03-22 Structure de génération de chaleur

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WO (1) WO2018173152A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56166690U (fr) * 1980-05-13 1981-12-10
JPH0732897U (ja) * 1993-11-29 1995-06-16 日星電気株式会社 面状発熱体
WO2011060340A1 (fr) * 2009-11-13 2011-05-19 Rtr Technologies, Inc. Panneau chauffant structural multicouche

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56166690U (fr) * 1980-05-13 1981-12-10
JPH0732897U (ja) * 1993-11-29 1995-06-16 日星電気株式会社 面状発熱体
WO2011060340A1 (fr) * 2009-11-13 2011-05-19 Rtr Technologies, Inc. Panneau chauffant structural multicouche

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