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JP2015002623A - Thermal conductive sheet, circuit constituent and electric connection box - Google Patents

Thermal conductive sheet, circuit constituent and electric connection box Download PDF

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Publication number
JP2015002623A
JP2015002623A JP2013126264A JP2013126264A JP2015002623A JP 2015002623 A JP2015002623 A JP 2015002623A JP 2013126264 A JP2013126264 A JP 2013126264A JP 2013126264 A JP2013126264 A JP 2013126264A JP 2015002623 A JP2015002623 A JP 2015002623A
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Japan
Prior art keywords
adhesive
base material
heat
conductive sheet
bent portion
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JP2013126264A
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Japanese (ja)
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陳 登
Deng Chen
登 陳
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Sumitomo Wiring Systems Ltd
AutoNetworks Technologies Ltd
Sumitomo Electric Industries Ltd
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Sumitomo Wiring Systems Ltd
AutoNetworks Technologies Ltd
Sumitomo Electric Industries Ltd
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Priority to JP2013126264A priority Critical patent/JP2015002623A/en
Publication of JP2015002623A publication Critical patent/JP2015002623A/en
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  • Cooling Or The Like Of Electrical Apparatus (AREA)
  • Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
  • Connection Or Junction Boxes (AREA)

Abstract

PROBLEM TO BE SOLVED: To prevent peeling of a thermal conductive sheet.SOLUTION: A thermal conductive sheet 14 includes: a sheet-like base material 15; and adhesive parts 19, 20 superposed on surfaces of the base material 15. The base material 15 includes a first bending part 18 formed by slits 17 and allowed to be bent and deformed in a direction intersecting with the surfaces of the base material 15, and the adhesive parts 19, 20 comprise: a first adhesive part 19 superposed on the first bending part 18 on the one-side surface of the base material 15 in an adhesive state; and the second adhesive part 20 superposed on an area different from the first bending part 18 on the surface opposite to the one-side surface of the base material 15 in an adhesive state.

Description

本発明は、熱伝導シート、回路構成体及び電気接続箱に関する。   The present invention relates to a heat conductive sheet, a circuit structure, and an electrical junction box.

従来、通電電流に応じて発熱する発熱部材と、この発熱部材の熱を放散させる放熱部材との間に配される熱伝導シートが知られている。   2. Description of the Related Art Conventionally, a heat conductive sheet is known that is disposed between a heat generating member that generates heat in response to an energization current and a heat radiating member that dissipates heat from the heat generating member.

特許文献1は、軟性金属層とその両面に設けられたゴム層とを備えた放熱シートが記載されており、この放熱用シートがヒートシンクと被冷却部品との間に挟んで接続されている。
このように、軟性金属層を備えることでちぎれたりしにくく、ヒートシンクと被冷却部品の凹凸への追随性を有するため、ヒートシンクと被冷却部品との間の熱膨張率の差異に起因して放熱用シートに応力が生じてもヒートシンクと被冷却部品との間の剥離等が防止されるようになっている。
Patent Document 1 describes a heat dissipating sheet including a soft metal layer and rubber layers provided on both sides thereof, and the heat dissipating sheet is connected between a heat sink and a component to be cooled.
In this way, it is difficult to tear off by having a soft metal layer, and because it has the ability to follow the unevenness of the heat sink and the component to be cooled, heat dissipation is caused by the difference in the coefficient of thermal expansion between the heat sink and the component to be cooled. Even if stress is generated in the sheet for use, peeling between the heat sink and the component to be cooled is prevented.

特開平11−204705号公報JP-A-11-204705

しかしながら、特許文献1の構成のように、単に軟性金属層を備えるだけでは、軟性金属層が変形可能な範囲が少ないため、放熱シートの応力が大きくなったときに剥離が生じることが懸念される。特に、発熱部材の熱伝導シート側の面の平面度や、放熱部材の熱伝導シート側の面の平面度が低い場合には、熱伝導シートに生じる応力が更に大きくなり、軟性金属層だけでは、放熱シートの応力を吸収できないおそれがある。   However, there is a concern that peeling may occur when the stress of the heat-dissipating sheet increases because the soft metal layer has only a small range in which the soft metal layer can be deformed as in the configuration of Patent Document 1. . In particular, when the flatness of the heat conductive sheet side surface of the heat generating member and the flatness of the heat conductive sheet side surface of the heat radiating member are low, the stress generated in the heat conductive sheet is further increased. There is a possibility that the stress of the heat dissipation sheet cannot be absorbed.

本発明は上記のような事情に基づいて完成されたものであって、熱伝導シートの剥離を防止することを目的とする。   This invention is completed based on the above situations, Comprising: It aims at preventing peeling of a heat conductive sheet.

本発明は、シート状の基材と、前記基材の面に重ねられる粘着剤と、を備え、前記基材は、スリットにより形成され当該基材の面と交差する方向に曲げ変形可能な第1曲げ部を備えており、前記粘着剤は、前記基材の一方側の面における前記第1曲げ部に粘着状態で重ねられる第1粘着部と、前記基材の前記一方側とは反対側の面における前記第1曲げ部とは異なる領域に粘着状態で重ねられる第2粘着部とを備える。   The present invention comprises a sheet-like base material and an adhesive that is stacked on the surface of the base material, and the base material is formed by a slit and is capable of bending deformation in a direction intersecting the surface of the base material. A first bending portion that is overlapped with the first bending portion on one surface of the base material in an adhesive state; and the opposite side of the base material from the one side. And a second adhesive portion that is overlapped in an adhesive state on a region different from the first bent portion on the surface.

本構成によれば、例えば、通電電流に応じて発熱する発熱部材と、この発熱部材の熱を放散させる放熱部材と、の間に配される熱伝導シートについては、発熱部材や放熱部材の平面度の低さや、熱膨張等により、発熱部材と放熱部材との間の間隔が部分的に広がった場合であっても、第1曲げ部が基材の面と交差する方向に曲げ変形することで、第1粘着部は、第1曲げ部が粘着状態で重ねられたまま発熱部材及び放熱部材の一方側への粘着を維持することが可能になり、第2粘着部は、第1曲げ部とは異なる領域が粘着状態で重ねられたまま発熱部材及び放熱部材の他方への粘着を維持することが可能になる。これにより、熱伝導シートの応力を吸収することができ、熱伝導シートの剥離を防止することが可能になる。   According to this configuration, for example, for the heat conductive sheet disposed between the heat generating member that generates heat according to the energization current and the heat radiating member that dissipates the heat of the heat generating member, Even when the gap between the heat generating member and the heat radiating member is partially expanded due to low degree of temperature, thermal expansion, etc., the first bent portion is bent and deformed in the direction intersecting the surface of the base material. Thus, the first adhesive portion can maintain the adhesion to one side of the heat generating member and the heat radiating member while the first bending portion is stacked in the adhesive state, and the second adhesive portion is the first bending portion. It becomes possible to maintain the adhesion to the other of the heat generating member and the heat radiating member while the different regions from each other are stacked in an adhesive state. Thereby, the stress of a heat conductive sheet can be absorbed and peeling of a heat conductive sheet can be prevented.

上記構成の実施態様として以下の構成を有すれば好ましい。
・前記基材は、スリットにより形成され当該基材の面と交差する方向に曲げ変形可能な第2曲げ部を備え、前記基材の前記反対側の面における前記第2曲げ部に前記第2粘着部が粘着状態で重ねられている。
このようにすれば、第1曲げ部と第2曲げ部が反対方向に曲げ変形可能になるため、より一層、熱伝導シートに生じる応力による剥離を防止することができる。
It is preferable to have the following configuration as an embodiment of the above configuration.
The base material includes a second bending portion that is formed by a slit and can be bent and deformed in a direction intersecting the surface of the base material, and the second bending portion on the opposite surface of the base material has the second bending portion. The adhesive part is stacked in an adhesive state.
If it does in this way, since a 1st bending part and a 2nd bending part can be bent and deformed in the opposite direction, peeling by the stress which arises in a heat conductive sheet can be prevented further.

・前記第1曲げ部及び前記第2曲げ部は、共に複数であって、複数の前記第1曲げ部が並んだ第1曲げ部列と複数の前記第2曲げ部が並んだ第2曲げ部列とが隣り合っており、前記第1曲げ部列の前記第1曲げ部と、前記第1曲げ部列と隣り合う前記第2曲げ部列における前記第2曲げ部とは、並び方向の位置をずらして配置されている。 The first bent portion and the second bent portion are both plural, and the first bent portion row in which the plurality of first bent portions are arranged and the second bent portion in which the plurality of second bent portions are arranged. The first bending portion of the first bending portion row and the second bending portion of the second bending portion row adjacent to the first bending portion row are arranged in a row direction. Are arranged.

・前記第1曲げ部と前記第2曲げ部との間には、前記スリットが共通に設けられている。
・前記基材は、本体と、前記第1曲げ部とを備え、前記第2粘着部は、前記反対側の面における前記本体の位置に粘着状態で重ねられており、前記本体の前記第2粘着部が重ねられた位置における前記一方側の面には、第3粘着部が粘着状態で重ねられている。
・前記第2粘着部と前記第3粘着部とを合わせた厚みは、前記第1粘着部の厚みとほぼ等しい。
The slit is provided in common between the first bent portion and the second bent portion.
The base material includes a main body and the first bending portion, and the second adhesive portion is stacked in an adhesive state on the position of the main body on the opposite surface, and the second of the main body A third adhesive portion is stacked in an adhesive state on the surface on the one side at the position where the adhesive portions are stacked.
The total thickness of the second adhesive portion and the third adhesive portion is substantially equal to the thickness of the first adhesive portion.

・通電電流に応じて発熱する発熱部材と、前記発熱部材の熱を放散させる放熱部材と、前記熱伝導シートと、を備え、前記熱伝導シートは、前記発熱部材と前記放熱部材との間に配される回路構成体とする。
・前記回路構成体と、前記回路構成体が収容されるケースと、を備えた電気接続箱とする。
A heat generating member that generates heat in response to an energization current, a heat radiating member that dissipates heat from the heat generating member, and the heat conductive sheet, wherein the heat conductive sheet is interposed between the heat generating member and the heat radiating member. It is assumed that the circuit structure is arranged.
-It is set as the electrical junction box provided with the said circuit structure and the case in which the said circuit structure is accommodated.

本発明によれば、熱伝導シートの剥離を防止することが可能になる。   According to this invention, it becomes possible to prevent peeling of a heat conductive sheet.

実施形態1の熱伝導シートを備えた電気接続箱の概略的構成を示す縦断面図The longitudinal cross-sectional view which shows schematic structure of the electrical-connection box provided with the heat conductive sheet of Embodiment 1. FIG. 基材を示す平面図Plan view showing the substrate 基材に第1粘着部及び第2粘着部が塗布された状態を示す縦断面図The longitudinal cross-sectional view which shows the state by which the 1st adhesion part and the 2nd adhesion part were apply | coated to the base material 基材に第1粘着部が塗布された状態を示す横断面図Cross-sectional view showing a state in which the first adhesive portion is applied to the substrate 基材に第2粘着部が塗布された状態を示す横断面図Cross-sectional view showing a state in which the second adhesive portion is applied to the substrate 発熱部材が変形した場合の熱伝導シートの状態を示す縦断面図Longitudinal sectional view showing the state of the heat conductive sheet when the heat generating member is deformed 図6とは異なる形状に発熱部材が変形した場合の熱伝導シートの状態を示す縦断面図The longitudinal cross-sectional view which shows the state of the heat conductive sheet when a heat generating member deform | transforms into the shape different from FIG. 実施形態2の熱伝導シートを備えた電気接続箱の概略的構成を示す縦断面図The longitudinal cross-sectional view which shows schematic structure of the electrical-connection box provided with the heat conductive sheet of Embodiment 2. FIG. 基材に第1粘着部、第2粘着部及び第3粘着部が塗布された状態を示す縦断面図The longitudinal cross-sectional view which shows the state by which the 1st adhesion part, the 2nd adhesion part, and the 3rd adhesion part were apply | coated to the base material 実施形態3の熱伝導シートを備えた電気接続箱の概略的構成を示す縦断面図The longitudinal cross-sectional view which shows schematic structure of the electrical-connection box provided with the heat conductive sheet of Embodiment 3. FIG. 基材を示す平面図Plan view showing the substrate 基材に第1粘着部及び第2粘着部が塗布された状態を示す縦断面図The longitudinal cross-sectional view which shows the state by which the 1st adhesion part and the 2nd adhesion part were apply | coated to the base material 基材に第1粘着部が塗布された状態を示す横断面図Cross-sectional view showing a state in which the first adhesive portion is applied to the substrate 発熱部材が変形した場合の熱伝導シートの状態を示す縦断面図Longitudinal sectional view showing the state of the heat conductive sheet when the heat generating member is deformed 図14とは異なる形状に発熱部材が変形した場合の熱伝導シートの状態を示す縦断面図The longitudinal cross-sectional view which shows the state of the heat conductive sheet when a heat generating member deform | transforms into the shape different from FIG. 実施形態4の熱伝導シートを備えた電気接続箱の概略的構成を示す縦断面図The longitudinal cross-sectional view which shows schematic structure of the electrical-connection box provided with the heat conductive sheet of Embodiment 4. FIG. 基材に第1粘着部、第2粘着部及び第3粘着部が塗布された状態を示す縦断面図The longitudinal cross-sectional view which shows the state by which the 1st adhesion part, the 2nd adhesion part, and the 3rd adhesion part were apply | coated to the base material 基材に第1粘着部及び第3粘着部が塗布された状態を示す横断面図Cross-sectional view showing a state in which the first adhesive portion and the third adhesive portion are applied to the substrate 基材に第2粘着部が塗布された状態を示す横断面図Cross-sectional view showing a state in which the second adhesive portion is applied to the substrate 実施形態5の熱伝導シートを備えた電気接続箱の概略的構成を示す縦断面図The longitudinal cross-sectional view which shows schematic structure of the electrical-connection box provided with the heat conductive sheet of Embodiment 5. 基材を示す平面図Plan view showing the substrate 基材に第1粘着部及び第2粘着部が塗布された状態を示す縦断面図The longitudinal cross-sectional view which shows the state by which the 1st adhesion part and the 2nd adhesion part were apply | coated to the base material 基材に第1粘着部が塗布された状態を示す横断面図Cross-sectional view showing a state in which the first adhesive portion is applied to the substrate 発熱部材が変形した場合の熱伝導シートの状態を示す縦断面図Longitudinal sectional view showing the state of the heat conductive sheet when the heat generating member is deformed 図24とは異なる形状に発熱部材が変形した場合の熱伝導シートの状態を示す縦断面図The longitudinal cross-sectional view which shows the state of the heat conductive sheet when a heat generating member deform | transforms into the shape different from FIG. 他の実施形態のスリットの隙間が第1実施形態と異なる基材を示す平面図The top view which shows the base material from which the clearance gap of the slit of other embodiment differs from 1st Embodiment スリットの隙間が第3実施形態と異なる基材を示す平面図The top view which shows the base material from which the clearance gap between slits differs from 3rd Embodiment. スリットの隙間が第5実施形態と異なる基材を示す平面図The top view which shows the base material from which the clearance gap between slits differs from 5th Embodiment 他の実施形態の第1スリットの隙間が第1実施形態と異なる基材を示す平面図The top view which shows the base material from which the clearance gap of the 1st slit of other embodiment differs from 1st Embodiment 第1スリットの隙間が第3実施形態と異なる基材を示す平面図The top view which shows the base material from which the clearance gap between 1st slits differs from 3rd Embodiment 第1スリットの隙間が第5実施形態と異なる基材を示す平面図The top view in which the crevice of the 1st slit shows the substrate which differs from a 5th embodiment 他の実施形態の第2スリットの隙間が第1実施形態と異なる基材を示す平面図The top view which shows the base material from which the clearance gap of the 2nd slit of other embodiment differs from 1st Embodiment. 第2スリットの隙間が第3実施形態と異なる基材を示す平面図The top view which shows the base material from which the clearance gap of a 2nd slit differs from 3rd Embodiment. 第2スリットの隙間が第5実施形態と異なる基材を示す平面図The top view which shows the base material from which the clearance gap of a 2nd slit differs from 5th Embodiment

<実施形態1>
本発明の実施形態1を図1ないし図7を参照して説明する。
本実施形態の電気接続箱10は、例えば、電気自動車やハイブリッド自動車等の車両に搭載され、バッテリ等の電源からモータや車載電装品等の負荷に電力を供給する経路に配することができる。以下では、上下方向及び左右方向については、図1を基準とし、前後方向については、図2の下方を前方、上方を後方として説明する。
<Embodiment 1>
A first embodiment of the present invention will be described with reference to FIGS.
The electrical junction box 10 of the present embodiment is mounted on a vehicle such as an electric vehicle or a hybrid vehicle, and can be arranged on a path for supplying power from a power source such as a battery to a load such as a motor or an on-vehicle electrical component. In the following description, the vertical direction and the horizontal direction will be described with reference to FIG. 1, and the front-back direction will be described with the lower side of FIG.

電気接続箱10は、図1に示すように、回路構成体11と、回路構成体11を収容するケース21とを備えて構成されている。
ケース21は、合成樹脂製や金属製等であって、下方が開口した箱形であって、回路構成体11の上面側を覆うように回路構成体11に被せられる。
As shown in FIG. 1, the electrical junction box 10 includes a circuit structure 11 and a case 21 that accommodates the circuit structure 11.
The case 21 is made of a synthetic resin, metal, or the like and has a box shape with an opening at the bottom, and covers the circuit structure 11 so as to cover the upper surface side of the circuit structure 11.

回路構成体11は、発熱部品(図示しない)が実装される板状の発熱部材12と、発熱部材12に重ねられ、発熱部材12からの熱を放散させる板状の放熱部材13と、発熱部材12と放熱部材13との間に挟まれて発熱部材12の熱を放熱部材13に伝導する熱伝導シート14とを備える。   The circuit component 11 includes a plate-like heat generating member 12 on which a heat generating component (not shown) is mounted, a plate-like heat radiating member 13 that is superposed on the heat generating member 12 and dissipates heat from the heat generating member 12, and a heat generating member. 12 and a heat conductive sheet 14 that is sandwiched between the heat radiating member 13 and conducts heat of the heat generating member 12 to the heat radiating member 13.

発熱部材12は、通電電流に応じて発熱する電子部品等の発熱部品が実装される回路基板にバスバーを重ねて構成されている。
回路基板は、銅又は銅合金の導電路がプリント配線されている。
バスバーは、導電路の形状に応じて銅又は銅合金の金属板材を打ち抜いて形成されている。
The heat generating member 12 is configured by overlapping a bus bar on a circuit board on which a heat generating component such as an electronic component that generates heat in response to an energization current is mounted.
The circuit board is printed with copper or copper alloy conductive paths.
The bus bar is formed by punching a copper or copper alloy metal plate according to the shape of the conductive path.

放熱部材13は、板状であって、熱伝導性の高い金属からなる。本実施形態では、アルミニウム又はアルミニウム合金製であって、押出成形により形成されている。
放熱部材13の上面は、平坦な面である。
放熱部材13の下面には、放熱性を高めるために放熱フィンを設けてもよい。
なお、押し出し成形で放熱部材13を形成した後に、放熱部材13における熱伝導シート14が重ねられる面を平坦に加工する(削る)ようにして放熱部材13の平面度を高めるようにしてもよい。
The heat radiating member 13 has a plate shape and is made of a metal having high thermal conductivity. In this embodiment, it is made of aluminum or an aluminum alloy, and is formed by extrusion molding.
The upper surface of the heat radiating member 13 is a flat surface.
A heat radiating fin may be provided on the lower surface of the heat radiating member 13 in order to enhance heat radiating properties.
In addition, after forming the heat radiating member 13 by extrusion molding, the flatness of the heat radiating member 13 may be increased by processing (scraping) the surface of the heat radiating member 13 on which the heat conductive sheet 14 is overlapped.

熱伝導シート14は、発熱部材12のバスバーと放熱部材13との間に挟まれており、シート状の基材15と、基材15の面に重ねられる粘着剤からなる粘着部19,20と、を備えている。
(基材15)
基材15は、ロール状に巻回された金属箔を発熱部材12や放熱部材13の長さに応じて切り取って形成しており、図2に示すように、シート状の本体16と、スリット17により形成され本体16の面と交差する方向に曲げ変形可能な複数の第1曲げ部18とを備えている。
The heat conductive sheet 14 is sandwiched between the bus bar of the heat generating member 12 and the heat radiating member 13, and has a sheet-like base material 15 and adhesive portions 19 and 20 made of an adhesive layered on the surface of the base material 15. It is equipped with.
(Substrate 15)
The base material 15 is formed by cutting a metal foil wound in a roll shape according to the length of the heat generating member 12 or the heat radiating member 13, and as shown in FIG. 17 and a plurality of first bending portions 18 that can be bent and deformed in a direction intersecting the surface of the main body 16.

本体16は、基材15における第1曲げ部18の領域以外の領域に配されており、格子状(枠状)に形成されている。
スリット17は、右方が開放されたU字状に基材15を貫通する細い切れ目であって、前後方向に延びる第1スリット17Aと、第1スリット17Aの端部から右方(直交する方向)に延びる一対の第2スリット17Bとを備えている。
このスリット17は、基材15をプレス機等で剪断することにより形成されており、本体16との間に殆ど隙間は形成されていない。
The main body 16 is disposed in a region other than the region of the first bending portion 18 in the base material 15 and is formed in a lattice shape (frame shape).
The slit 17 is a thin cut that penetrates the base material 15 in a U shape with the right side open, and extends from the end of the first slit 17A to the right (rightward direction). ) Extending in a pair).
The slit 17 is formed by shearing the base material 15 with a press machine or the like, and almost no gap is formed between the slit 17 and the main body 16.

第1曲げ部18は、前後方向、及び、左右方向にそれぞれ3箇所(複数)並んで形成されており、右方(四方のうちの一方)が本体16と一体に連なり、左方、前方、後方(四方のうちの三方)が本体16とスリット17で分断されている。
第1曲げ部18は、スリット17で分断された部分が本体16と交差する方向に(本体16に連なる基端部18A側を軸側として)曲げることができる。
The first bent portion 18 is formed in three (plural) positions in the front-rear direction and the left-right direction, and the right side (one of the four sides) is integrated with the main body 16 so that the left side, the front side, The rear (three of the four sides) is divided by the main body 16 and the slit 17.
The first bending portion 18 can be bent in a direction in which the portion divided by the slit 17 intersects the main body 16 (with the base end 18A side continuous with the main body 16 as an axis side).

基材15は、熱伝導シート14に応力が生じた場合に、ちぎれることなく曲がることができる強度及び柔軟性を有する部材であって、熱伝導率の高いものが好ましい。本実施形態では、銅箔が用いられているが、例えば、アルミ箔、ガラス繊維などから形成することもできる。   The base material 15 is a member having strength and flexibility that can be bent without tearing when stress is generated in the heat conductive sheet 14, and preferably has a high thermal conductivity. In this embodiment, copper foil is used, but it can also be formed from, for example, aluminum foil or glass fiber.

(粘着部19,20)
粘着部19,20は、基材15に塗布した後、時間が経過しても粘着性を有する材料からなる。熱硬化は不要とされている。
この粘着部19,20は、図3に示すように、基材15の上面(一方側の面)における第1曲げ部18に重ねられる第1粘着部19と、基材15の下面(一方側とは反対側の面)における本体16に重ねられる第2粘着部20とを備える。
(Adhesive parts 19, 20)
The adhesive portions 19 and 20 are made of a material having adhesiveness even if time passes after being applied to the base material 15. Thermosetting is not required.
As shown in FIG. 3, the adhesive portions 19 and 20 include a first adhesive portion 19 that is superimposed on the first bent portion 18 on the upper surface (one side surface) of the base material 15, and the lower surface (one side) of the base material 15. And a second adhesive portion 20 that is superimposed on the main body 16 on the opposite surface.

第1粘着部19と第2粘着部20とはほぼ同じ厚みで形成されている。
第1粘着部19は、図4に示すように、長方形状の各第1曲げ部18における縁部を除いたほぼ全体に長方形状に塗布されている。
第2粘着部20は、図5に示すように、格子状の本体16における縁部を除いたほぼ全体に塗布されている。
The first adhesive portion 19 and the second adhesive portion 20 are formed with substantially the same thickness.
As shown in FIG. 4, the first adhesive portion 19 is applied in a rectangular shape to substantially the entire area excluding the edge portion of each rectangular first bent portion 18.
As shown in FIG. 5, the second adhesive portion 20 is applied to almost the entire surface excluding the edge portion of the lattice-like main body 16.

次に、電気接続箱10の組み付け方法について説明する。
ロール状の銅箔を所定の長さに切断し、プレス機で基材15を剪断してスリット17を形成すると第1曲げ部18が形成される(図2)。
次に、基材15における第1曲げ部18の上面に第1粘着部19を塗布し、本体16の底面に第2粘着部20を塗布して熱伝導シート14を形成する(図3)。
Next, a method for assembling the electrical junction box 10 will be described.
When the roll-shaped copper foil is cut into a predetermined length and the base material 15 is sheared with a press machine to form the slits 17, the first bent portions 18 are formed (FIG. 2).
Next, the 1st adhesion part 19 is apply | coated to the upper surface of the 1st bending part 18 in the base material 15, and the 2nd adhesion part 20 is apply | coated to the bottom face of the main body 16, and the heat conductive sheet 14 is formed (FIG. 3).

熱伝導シート14の上方側に発熱部材12を重ねるとともに、熱伝導シート14の下方側に放熱部材13を重ねて、熱伝導シート14を挟み付けると、粘着部19,20の厚みにより、本体16が上側に、第1曲げ部18が下側に配され、第1曲げ部18の基端部18Aが曲げられた状態となる(図1参照)。
これにより、回路構成体11が形成される。
When the heat generating member 12 is stacked on the upper side of the heat conductive sheet 14 and the heat radiating member 13 is stacked on the lower side of the heat conductive sheet 14 and the heat conductive sheet 14 is sandwiched, the main body 16 depends on the thickness of the adhesive portions 19 and 20. Is arranged on the upper side and the first bent portion 18 is arranged on the lower side, and the base end portion 18A of the first bent portion 18 is bent (see FIG. 1).
Thereby, the circuit structure 11 is formed.

なお、発熱部材12と放熱部材13との間をネジ留めすることで発熱部材12と放熱部材13との相対的位置を固定してもよい。
回路構成体11の上方からケース21を被せると放熱部材13の底面が外部に露出した状態の電気接続箱10が形成される。
The relative position between the heat generating member 12 and the heat radiating member 13 may be fixed by screwing between the heat generating member 12 and the heat radiating member 13.
When the case 21 is covered from above the circuit structure 11, the electrical junction box 10 is formed with the bottom surface of the heat dissipation member 13 exposed to the outside.

本実施形態によれば、以下の作用・効果を奏する。
本実施形態によれば、通電電流に応じて発熱する発熱部材12と、この発熱部材12の熱を放散させる放熱部材13と、の間に配される熱伝導シート14について、発熱部材12や放熱部材13の平面度の低さや、熱膨張等により、発熱部材12と放熱部材13との間の間隔が部分的に広がった場合であっても、図7,図8に示すように、第1曲げ部18が基材15の面と交差する方向に曲げ変形することで、第1粘着部19は、第1曲げ部18が粘着状態で重ねられたまま発熱部材12(発熱部材12及び放熱部材13の一方)側への粘着を維持することが可能になり、第2粘着部20は、本体16(第1曲げ部18とは異なる領域)が粘着状態で重ねられたまま放熱部材13(発熱部材12及び放熱部材13の他方)への粘着を維持することが可能になる。これにより、熱伝導シート14の応力を吸収することができ、熱伝導シート14の剥離を防止することが可能になる。
According to the present embodiment, the following operations and effects are achieved.
According to the present embodiment, the heat generating member 12 and the heat dissipation of the heat conductive sheet 14 disposed between the heat generating member 12 that generates heat according to the energization current and the heat dissipating member 13 that dissipates the heat of the heat generating member 12 are provided. Even when the space between the heat generating member 12 and the heat radiating member 13 is partially expanded due to the low flatness of the member 13 or thermal expansion, as shown in FIGS. The bending part 18 bends and deforms in a direction intersecting the surface of the substrate 15, so that the first adhesive part 19 has the heat generating member 12 (the heat generating member 12 and the heat radiating member while the first bending part 18 is stacked in the adhesive state. It is possible to maintain the adhesion to the one side of 13, and the second adhesive part 20 has the heat radiation member 13 (heat generation) with the main body 16 (an area different from the first bending part 18) being stacked in an adhesive state. Maintain adhesion to the other of the member 12 and the heat dissipation member 13) Door is possible. Thereby, the stress of the heat conductive sheet 14 can be absorbed, and peeling of the heat conductive sheet 14 can be prevented.

<実施形態2>
次に、本発明の実施形態2を図8,図9を参照して説明する。
実施形態2では、実施形態1における第2粘着部20を薄くし、基材15の上面側に第3粘着部25を形成しものである。他の構成は、実施形態1と同一であり、以下では、実施形態1と同一の構成については同一の符号を付して説明を省略する。
<Embodiment 2>
Next, Embodiment 2 of the present invention will be described with reference to FIGS.
In the second embodiment, the second adhesive portion 20 in the first embodiment is thinned, and the third adhesive portion 25 is formed on the upper surface side of the substrate 15. Other configurations are the same as those of the first embodiment. In the following, the same components as those of the first embodiment are denoted by the same reference numerals and description thereof is omitted.

電気接続箱22の熱伝導シート23は、図9に示すように、基材24に第1粘着部19、第2粘着部20A、及び、第3粘着部25が粘着状態で重ねられている。
第3粘着部25は、基材24における第2粘着部20Aとは反対側の面の同じ領域に重ねられている。
第1粘着部19、第2粘着部20A及び第3粘着部25は、同じ材質であり、第2粘着部20A及び第3粘着部25の厚みは、共に第1粘着部19の厚みのほぼ半分である。即ち、第1粘着部19の厚みは、第2粘着部20A及び第3粘着部25の厚みを合わせた厚みとされている。
As shown in FIG. 9, in the heat conduction sheet 23 of the electrical connection box 22, the first adhesive portion 19, the second adhesive portion 20 </ b> A, and the third adhesive portion 25 are stacked on the base material 24 in an adhesive state.
The third adhesive portion 25 is overlaid on the same region on the surface of the base 24 opposite to the second adhesive portion 20A.
The first adhesive part 19, the second adhesive part 20A, and the third adhesive part 25 are made of the same material, and the thicknesses of the second adhesive part 20A and the third adhesive part 25 are both substantially half the thickness of the first adhesive part 19. It is. In other words, the thickness of the first adhesive portion 19 is the sum of the thicknesses of the second adhesive portion 20A and the third adhesive portion 25.

本実施形態によれば、第2粘着部20A及び第3粘着部25が基材24の両面に配されるため、発熱部材12と放熱部材13との間に所定の粘着力で粘着しつつ、第1曲げ部18と第1粘着部19で熱伝導シート23の応力を吸収することが可能になる。   According to the present embodiment, since the second adhesive portion 20A and the third adhesive portion 25 are arranged on both surfaces of the base material 24, while adhering between the heat generating member 12 and the heat radiating member 13 with a predetermined adhesive force, The first bending portion 18 and the first adhesive portion 19 can absorb the stress of the heat conductive sheet 23.

<実施形態3>
次に、本発明の実施形態を図10ないし図15を参照して説明する。
実施形態3では、基材28に放熱部材13側に粘着部35で粘着する第2曲げ部32を形成するものである。上記実施形態と同一の構成については、同一の符号を付して説明を省略する。
<Embodiment 3>
Next, an embodiment of the present invention will be described with reference to FIGS.
In Embodiment 3, the 2nd bending part 32 which adheres to the base material 28 with the adhesion part 35 at the heat radiating member 13 side is formed. About the same structure as the said embodiment, the same code | symbol is attached | subjected and description is abbreviate | omitted.

電気接続箱26の熱伝導シート27における基材28は、図11に示すように、シート状の本体30と、スリット33Aにより形成され本体30の面と交差する方向に曲げ変形可能な複数の第1曲げ部31と、スリット33Bにより形成され本体30の面と交差する方向に曲げ変形可能な複数の第2曲げ部32と、を備えている。   As shown in FIG. 11, the base material 28 in the heat conductive sheet 27 of the electrical junction box 26 includes a plurality of second bodies that can be bent and deformed in a direction intersecting the surface of the main body 30 formed by the sheet-like main body 30 and the slits 33 </ b> A. 1 bent portion 31 and a plurality of second bent portions 32 that are formed by slits 33B and can be bent and deformed in a direction intersecting the surface of the main body 30 are provided.

スリット33A,33Bは、共に、左右方向の一方が開放されたU字状であって、基材28を貫通している。スリット33Aは、右方が開放されており、第2曲げ部32のスリット33Bは、左方が開放されている。
本体30は、第1曲げ部31及び第2曲げ部32以外の領域であって、格子状に形成されている。
The slits 33 </ b> A and 33 </ b> B are both U-shaped in which one of the left and right directions is opened, and penetrate the base material 28. The right side of the slit 33A is open, and the left side of the slit 33B of the second bent portion 32 is open.
The main body 30 is a region other than the first bent portion 31 and the second bent portion 32 and is formed in a lattice shape.

複数の第1曲げ部31と複数の第2曲げ部32とは、複数の第1曲げ部31が並んだ第1曲げ部列28A(図11では、前後に並んだ3個の第1曲げ部31からなる)と複数の第2曲げ部32が並んだ第2曲げ部列28B(図11では、前後に並んだ2個の第2曲げ部32と第2曲げ部32が半分に分割された部分とからなる)とが隣り合っている。
第1曲げ部列28Aの第1曲げ部31と第2曲げ部列28Bの第2曲げ部32とは、前後方向(並び方向)の位置をずらして配置されている。
The plurality of first bending portions 31 and the plurality of second bending portions 32 are a first bending portion row 28A in which the plurality of first bending portions 31 are arranged (in FIG. 11, three first bending portions arranged in the front-rear direction). And a second bent portion row 28B in which a plurality of second bent portions 32 are arranged (in FIG. 11, the two second bent portions 32 and the second bent portion 32 arranged in front and rear are divided in half. Next to each other).
The first bent portion 31 of the first bent portion row 28A and the second bent portion 32 of the second bent portion row 28B are arranged with their positions in the front-rear direction (alignment direction) being shifted.

基材28に粘着状態で重ねられる粘着部34,35は、粘着剤からなり、図12に示すように、基材28の上面(一方側の面)における第1曲げ部31に粘着状態で重ねられる第1粘着部34と、基材28の下面(一方側とは反対側の面)における第2曲げ部32に粘着状態で重ねられる第2粘着部35とを備える。
粘着部34,35は、共に、粘着性を有する材料であって、基材28に塗布した後、時間が経過しても粘着性を有する材料からなる。粘着部34,35は、熱硬化が不要とされている。
第1粘着部34及び第2粘着部35は、図13に示すように、長方形状の第1曲げ部31及び第2曲げ部32内の領域における縁部を除いたほぼ全体に長方形状に塗布されている。
第1粘着部34と第2粘着部35とは、ほぼ同じ厚みで形成されている。
The adhesive portions 34 and 35 stacked on the base material 28 in an adhesive state are made of an adhesive, and are stacked on the first bending portion 31 on the upper surface (one side surface) of the base material 28 in an adhesive state as shown in FIG. The first adhesive part 34 is provided, and the second adhesive part 35 is stacked on the second bending part 32 on the lower surface (the surface opposite to the one side) of the base material 28 in an adhesive state.
The adhesive portions 34 and 35 are both adhesive materials, and are made of an adhesive material even after a lapse of time after being applied to the base material 28. The adhesive portions 34 and 35 are not required to be thermally cured.
As shown in FIG. 13, the first adhesive portion 34 and the second adhesive portion 35 are applied in a rectangular shape to almost the entire area except for the edges in the regions of the rectangular first bent portion 31 and the second bent portion 32. Has been.
The first adhesive portion 34 and the second adhesive portion 35 are formed with substantially the same thickness.

次に、電気接続箱26の組み付け方法について説明する。
ロール状の銅箔を所定の長さに切断し、プレス機で基材28を剪断してスリット33A,33Bを形成すると第1曲げ部31が形成される(図11)。
次に、第1曲げ部31の上面に第1粘着部34を塗布し、第2曲げ部32の底面に第2粘着部35を塗布して熱伝導シート27を形成する(図12)。
Next, a method for assembling the electrical junction box 26 will be described.
When the rolled copper foil is cut into a predetermined length and the base material 28 is sheared with a press machine to form the slits 33A and 33B, the first bent portion 31 is formed (FIG. 11).
Next, the 1st adhesion part 34 is apply | coated to the upper surface of the 1st bending part 31, and the 2nd adhesion part 35 is apply | coated to the bottom face of the 2nd bending part 32, and the heat conductive sheet 27 is formed (FIG. 12).

熱伝導シート27の上方側に発熱部材12を重ね、熱伝導シート27の下方側に放熱部材13を重ねて、熱伝導シート27を発熱部材12と放熱部材13で挟み付けると、粘着部34,35の厚みにより、第1曲げ部31が下側に、第2曲げ部32が上側に配され、第1曲げ部31及び第2曲げ部32の間の基端部31A,32Aが曲げられた状態となる(図10参照)。
上方からケース21を被せると放熱部材13の底面が外部に露出した状態の電気接続箱26が形成される。
When the heat generating member 12 is stacked on the upper side of the heat conductive sheet 27, the heat radiating member 13 is stacked on the lower side of the heat conductive sheet 27, and the heat conductive sheet 27 is sandwiched between the heat generating member 12 and the heat radiating member 13, Due to the thickness of 35, the first bent portion 31 is disposed on the lower side, the second bent portion 32 is disposed on the upper side, and the base end portions 31A and 32A between the first bent portion 31 and the second bent portion 32 are bent. A state is reached (see FIG. 10).
When the case 21 is covered from above, the electrical junction box 26 is formed with the bottom surface of the heat dissipation member 13 exposed to the outside.

実施形態によれば、以下の作用、効果を奏する。
本実施形態によれば、基材28は、スリット33A,33Bにより形成され当該基材28の面と交差する方向に曲げ変形可能な第2曲げ部32を備え、基材28の反対側の面における第2曲げ部32に第2粘着部35が粘着状態で重ねられている。
このようにすれば、図15に示すように、熱伝導シート27に応力が生じたとしても、第1曲げ部31と第2曲げ部32が反対方向に曲げ変形可能になるため、より一層、熱伝導シート27に生じる応力による剥離を防止することができる。
According to the embodiment, the following operations and effects are achieved.
According to the present embodiment, the base material 28 includes the second bending portion 32 that is formed by the slits 33 </ b> A and 33 </ b> B and can be bent and deformed in a direction intersecting the surface of the base material 28, and the surface on the opposite side of the base material 28. The second adhesive portion 35 is stacked on the second bent portion 32 in the adhesive state.
In this way, as shown in FIG. 15, even if stress is generated in the heat conductive sheet 27, the first bent portion 31 and the second bent portion 32 can be bent and deformed in opposite directions. Separation due to stress generated in the heat conductive sheet 27 can be prevented.

<実施形態4>
次に、本発明の実施形態4を図16ないし図19を参照して説明する。
実施形態4では、実施形態3の基材28における本体30の一方側の面に第3粘着部29Bを重ね、本体30の反対側の面に第2粘着部29Aを重ねたものである。以下では、上記実施形態と同一の構成については同一の符号を付して説明を省略する。
<Embodiment 4>
Next, a fourth embodiment of the present invention will be described with reference to FIGS.
In the fourth embodiment, the third adhesive portion 29 </ b> B is overlapped on one surface of the main body 30 in the base material 28 of the third embodiment, and the second adhesive portion 29 </ b> A is overlapped on the opposite surface of the main body 30. In the following, the same components as those in the above embodiment are denoted by the same reference numerals and description thereof is omitted.

電気接続箱36の熱伝導シート37は、図17に示すように、基材28に第1粘着部34、第2粘着部29A,35及び、第3粘着部29Bが塗布されている。
第2粘着部29A及び第3粘着部29Bは、基材28の面における同じ領域の反対面に形成されており、各粘着部29A,29B,34,35の材質は、全て同じ材質である。
第2粘着部29A及び第3粘着部29Bの厚みは、第1粘着部34や第3粘着部35の厚みのほぼ半分である。即ち、第1粘着部34や第2粘着部235の厚みは、第2粘着部29A及び第3粘着部29Bの厚みを合わせた厚みとされている。
As shown in FIG. 17, in the heat conduction sheet 37 of the electrical connection box 36, the first adhesive portion 34, the second adhesive portions 29 </ b> A and 35, and the third adhesive portion 29 </ b> B are applied to the base material 28.
The second adhesive portion 29A and the third adhesive portion 29B are formed on opposite surfaces of the same region on the surface of the base material 28, and the materials of the adhesive portions 29A, 29B, 34, and 35 are all the same.
The thickness of the second adhesive portion 29A and the third adhesive portion 29B is substantially half the thickness of the first adhesive portion 34 and the third adhesive portion 35. That is, the thickness of the 1st adhesion part 34 or the 2nd adhesion part 235 is made into the thickness which combined the thickness of 29 A of 2nd adhesion parts, and the 3rd adhesion part 29B.

<実施形態5>
次に、本発明の実施形態5を図20ないし図25を参照して説明する。
実施形態3,4では、第1曲げ部18と第2曲げ部32とは、互いに左右方向の向きが反対向きに形成されていたが、実施形態5では、図21に示すように、対となる第1曲げ部43と第2曲げ部44とが左右方向の同じ向きに形成されているものである。上記実施形態と同一の構成については同一の符号を付して説明を省略する。
<Embodiment 5>
Next, a fifth embodiment of the present invention will be described with reference to FIGS.
In the third and fourth embodiments, the first bent portion 18 and the second bent portion 32 are formed in opposite directions in the left-right direction, but in the fifth embodiment, as shown in FIG. The first bent portion 43 and the second bent portion 44 are formed in the same direction in the left-right direction. The same components as those in the above embodiment are denoted by the same reference numerals and description thereof is omitted.

電気接続箱38の熱伝導シート39における基材40は、スリット41により形成された第1曲げ部43及び第2曲げ部44が並んで設けられている。
スリット41は、右方が開放されたE字状をなしており、複数のスリット41が前後左右に並んでいる。
The base material 40 in the heat conductive sheet 39 of the electrical junction box 38 is provided with a first bent portion 43 and a second bent portion 44 formed by slits 41 side by side.
The slit 41 has an E shape with the right side opened, and a plurality of slits 41 are arranged in the front, rear, left, and right.

第1曲げ部43及び第2曲げ部44は、本体40Aの面と交差する方向に曲げ変形可能とされている。
本体40Aは、第1曲げ部43及び第2曲げ部44以外の領域であって、格子状に形成されている。
第1曲げ部43と第2曲げ部44との間には、スリット41Aが共通に設けられている。
The first bent portion 43 and the second bent portion 44 can be bent and deformed in a direction intersecting the surface of the main body 40A.
The main body 40A is a region other than the first bent portion 43 and the second bent portion 44, and is formed in a lattice shape.
A slit 41 </ b> A is provided in common between the first bent portion 43 and the second bent portion 44.

第1曲げ部43及び第2曲げ部44には、粘着剤の塗布により粘着部45,46が粘着状態で重ねられる。
粘着部45,46は、図22に示すように、基材40の上面(一方側の面)における第1曲げ部43に粘着状態で重ねられる第1粘着部45と、基材40の下面(一方側とは反対側の面)における第2曲げ部44に粘着状態で重ねられる第2粘着部46とを備える。
Adhesive portions 45 and 46 are stacked on the first bent portion 43 and the second bent portion 44 in an adhesive state by applying an adhesive.
As shown in FIG. 22, the adhesive portions 45 and 46 include a first adhesive portion 45 that is superimposed on the first bending portion 43 on the upper surface (one surface) of the base material 40 in an adhesive state, and a lower surface of the base material 40 ( And a second adhesive portion 46 that is overlapped on the second bent portion 44 on the surface opposite to the one side in an adhesive state.

第1粘着部45及び第2粘着部46は、図23に示すように、長方形状の第1曲げ部43及び第2曲げ部44における縁部を除いたほぼ全体に長方形状に塗布されている。
第1粘着部45と第2粘着部46とはほぼ同じ厚みで形成されている。
As shown in FIG. 23, the first adhesive portion 45 and the second adhesive portion 46 are applied in a rectangular shape on almost the entire surface excluding the edge portions of the rectangular first bent portion 43 and the second bent portion 44. .
The first adhesive portion 45 and the second adhesive portion 46 are formed with substantially the same thickness.

次に、電気接続箱38の組み付け方法について説明する。
ロール状の銅箔を所定の長さに切断し、プレス機で基材40を剪断してスリット41を形成すると第1曲げ部43及び第2曲げ部44が形成される(図21)。
次に、第1曲げ部43の上面に第1粘着部45を塗布し、第2曲げ部44の下面に第2粘着部46を塗布して熱伝導シート39を形成する(図22)。
Next, a method for assembling the electrical junction box 38 will be described.
When the roll-shaped copper foil is cut to a predetermined length and the base material 40 is sheared by a press machine to form the slit 41, the first bent portion 43 and the second bent portion 44 are formed (FIG. 21).
Next, the 1st adhesion part 45 is apply | coated to the upper surface of the 1st bending part 43, and the 2nd adhesion part 46 is apply | coated to the lower surface of the 2nd bending part 44, and the heat conductive sheet 39 is formed (FIG. 22).

熱伝導シート39の上方側に発熱部材12を重ね、熱伝導シート39の下方側に放熱部材13を重ねて、熱伝導シート39を発熱部材12と放熱部材13で挟み付けると、粘着部45,46の厚みにより、第1曲げ部43が下側に、第2曲げ部44が上側に配され、第1曲げ部43及び第2曲げ部44の基端部43A,44Aが曲げられた状態となる(図20参照)。
そして、上方からケース21を被せると放熱部材13の底面が外部に露出した状態の電気接続箱38が形成される。
When the heat generating member 12 is stacked on the upper side of the heat conductive sheet 39, the heat radiating member 13 is stacked on the lower side of the heat conductive sheet 39, and the heat conductive sheet 39 is sandwiched between the heat generating member 12 and the heat radiating member 13, Due to the thickness of 46, the first bent portion 43 is disposed on the lower side, the second bent portion 44 is disposed on the upper side, and the base end portions 43A and 44A of the first bent portion 43 and the second bent portion 44 are bent. (See FIG. 20).
When the case 21 is covered from above, the electrical junction box 38 is formed in a state where the bottom surface of the heat radiating member 13 is exposed to the outside.

本実施形態によれば、発熱部材12や放熱部材13の平面度の低さや、熱膨張等により、発熱部材12と放熱部材13との間の間隔が部分的に広がった場合であっても、図24,図25に示すように、第1曲げ部43が基材40の面と交差する方向に曲げ変形することで、第1粘着部45は、第1曲げ部43が粘着状態で重ねられたまま発熱部材12(発熱部材12及び放熱部材13の一方)側への粘着を維持することが可能になり、第2粘着部46は、第2曲げ部44が粘着状態で重ねられたまま放熱部材13(発熱部材12及び放熱部材13の他方)への粘着を維持することが可能になる。これにより、熱伝導シート39の応力を吸収することができ、熱伝導シート39の剥離を防止することが可能になる。   According to the present embodiment, even when the space between the heat generating member 12 and the heat radiating member 13 is partially expanded due to low flatness of the heat generating member 12 or the heat radiating member 13, thermal expansion, or the like, As shown in FIGS. 24 and 25, the first adhesive portion 45 is overlapped with the first bent portion 43 in an adhesive state by bending and deforming the first bent portion 43 in a direction intersecting the surface of the base material 40. It is possible to maintain adhesion to the heat generating member 12 (one of the heat generating member 12 and the heat radiating member 13) as it is, and the second adhesive portion 46 radiates heat while the second bent portion 44 is stacked in an adhesive state. Adhesion to the member 13 (the other of the heat generating member 12 and the heat radiating member 13) can be maintained. Thereby, the stress of the heat conductive sheet 39 can be absorbed, and peeling of the heat conductive sheet 39 can be prevented.

<他の実施形態>
本発明は上記記述及び図面によって説明した実施形態に限定されるものではなく、例えば次のような実施形態も本発明の技術的範囲に含まれる。
(1)上記実施形態では、スリット17,33A,33B,41は、殆ど隙間を有さないように剪断により形成されていたが、これに限られない。例えば、トムソン刃を用いた切断のように、スリット17,33A,33B,41を形成した際にスリット17,33A,33B,41に隙間が生じる切断方法を用いてもよい。例えば、図26〜図28に示すように、上記実施形態のスリット17,33A,33B,41の全体について隙間を大きくしたスリット48,49A,49B,50を形成した構成としてもよい。また、図29〜図31に示すように、上記実施形態のスリット17,33A,33B,41のうち、前後方向に延びる第1スリットの隙間を大きくし、左右方向に延びる第2スリットの隙間は大きくしないスリット51,52A,52B,53を形成した構成や、図32〜図34に示すように、上記実施形態のスリット17,33A,33B,41のうち、前後方向に延びる第1スリットの隙間は大きくせず、左右方向に延びる第2スリットの隙間を大きくしたスリット54,55A,55B,56を形成した構成としてもよい。なお、このような隙間のあるスリットよりも、実施形態1〜5のような隙間が形成されない剪断によるスリット17,33A,33B,41の方が接触面積を多くできて熱伝導率を高くすることができるため好適である。
(2)基材における第1曲げ部や第2曲げ部の数は、上記実施形態の数に限られず、適宜増減することができる。また、粘着部の数も上記実施形態の数に限られず、適宜増減することができる。
<Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.
(1) In the above-described embodiment, the slits 17, 33A, 33B, and 41 are formed by shearing so that there is almost no gap, but the present invention is not limited to this. For example, a cutting method in which a gap is formed in the slits 17, 33A, 33B, 41 when the slits 17, 33A, 33B, 41 are formed, such as cutting using a Thomson blade, may be used. For example, as shown in FIGS. 26 to 28, the slits 48, 49 </ b> A, 49 </ b> B, 50 having a large gap may be formed for the entire slits 17, 33 </ b> A, 33 </ b> B, 41 of the above embodiment. Further, as shown in FIGS. 29 to 31, among the slits 17, 33A, 33B, and 41 of the above embodiment, the gap between the first slits extending in the front-rear direction is increased, and the gap between the second slits extending in the left-right direction is A configuration in which slits 51, 52A, 52B, 53 that are not enlarged are formed, or a gap between first slits extending in the front-rear direction among slits 17, 33A, 33B, 41 of the above-described embodiment, as shown in FIGS. The slits 54, 55 </ b> A, 55 </ b> B, 56 may be formed by increasing the gap between the second slits extending in the left-right direction. Note that the slits 17, 33A, 33B, and 41 by shearing in which no gap is formed as in the first to fifth embodiments can increase the contact area and increase the thermal conductivity than the slit having such a gap. Is preferable.
(2) The number of the 1st bending part and the 2nd bending part in a base material is not restricted to the number of the said embodiment, It can increase / decrease suitably. Moreover, the number of adhesion parts is not restricted to the number of the said embodiment, It can increase / decrease suitably.

(3)粘着剤には、接着剤を含めることができる。例えば、第1粘着部〜第3粘着部について、その一部ないし全部を接着剤で形成してもよい。このように粘着剤として接着剤を用いても、接着剤以外の粘着剤を用いる場合と同様な効果を得ることが可能である。この場合、接着剤は、時間の経過により硬くなるが、例えば第1実施形態の第1粘着部や第2粘着部として半硬化のエポキシ接着剤を粘着剤として用いて熱伝導シートを形成するようにすればよい。そして、このような熱伝導シートを発熱部材と放熱部材の間にセットし、接着剤を硬化させて電気接続箱を形成することができる。
(4)上記実施形態では、各粘着部の形状は四角形とされているが、必要な熱伝導性を確保できれば、多角形でもよい。また、円形あるいは他の形状の粘着部とすることも可能である。
(3) The adhesive can include an adhesive. For example, some or all of the first adhesive portion to the third adhesive portion may be formed with an adhesive. Thus, even if an adhesive is used as the pressure-sensitive adhesive, it is possible to obtain the same effect as when a pressure-sensitive adhesive other than the adhesive is used. In this case, the adhesive becomes harder as time elapses. For example, as the first adhesive portion or the second adhesive portion of the first embodiment, a semi-cured epoxy adhesive is used as the adhesive to form a heat conductive sheet. You can do it. And such a heat conductive sheet can be set between a heat generating member and a heat radiating member, an adhesive can be hardened, and an electrical-connection box can be formed.
(4) In the said embodiment, although the shape of each adhesion part is made into the rectangle, a polygon may be sufficient as long as required heat conductivity is securable. Moreover, it is also possible to set it as the adhesive part of circular shape or another shape.

10,22,26,36,38...電気接続箱
11...回路構成体
12...発熱部材
13...放熱部材
14,23,27,37,39...熱伝導シート
15,24,28,40...基材
16,30,40A...本体
17,33A,33B,41,48,49A,49B,50,51,52A,52B,53,54,55A,55B,56...スリット
17A...第1スリット
17B...第2スリット
18,31,43...第1曲げ部
18A...基端部
19,20,34,35,45,46...粘着部(粘着剤)
19,34,45...第1粘着部(粘着剤)
20,29A,35,46...第2粘着部(粘着剤)
21...ケース
25,29B...第3粘着部(粘着剤)
28A...第1曲げ部列
28B...第2曲げ部列
41A...共通のスリット
44...第2曲げ部
10, 22, 26, 36, 38 ... electric junction box 11 ... circuit component 12 ... heat generating member 13 ... heat radiating member 14, 23, 27, 37, 39 ... heat conduction sheet 15 , 24, 28, 40 ... base material 16, 30, 40A ... main body 17, 33A, 33B, 41, 48, 49A, 49B, 50, 51, 52A, 52B, 53, 54, 55A, 55B, 56 ... Slit 17A ... First slit 17B ... Second slit 18, 31, 43 ... First bent portion 18A ... Base end 19, 20, 34, 35, 45, 46. ..Adhesive part (adhesive)
19, 34, 45 ... first adhesive part (adhesive)
20, 29A, 35, 46 ... second adhesive part (adhesive)
21 ... Case 25, 29B ... Third adhesive part (adhesive)
28A ... first bent portion row 28B ... second bent portion row 41A ... common slit 44 ... second bent portion

Claims (8)

シート状の基材と、
前記基材の面に重ねられる粘着剤と、を備え、
前記基材は、スリットにより形成され当該基材の面と交差する方向に曲げ変形可能な第1曲げ部を備えており、
前記粘着剤は、前記基材の一方側の面における前記第1曲げ部に粘着状態で重ねられる第1粘着部と、前記基材の前記一方側とは反対側の面における前記第1曲げ部とは異なる領域に粘着状態で重ねられる第2粘着部とを備える熱伝導シート。
A sheet-like substrate;
A pressure-sensitive adhesive layered on the surface of the base material,
The base material includes a first bent portion that is formed by a slit and is bendable and deformable in a direction that intersects the surface of the base material.
The pressure-sensitive adhesive includes a first pressure-sensitive adhesive portion that is stacked in an adhesive state on the first bending portion on one surface of the base material, and the first bending portion on a surface opposite to the one side of the base material. The heat conductive sheet provided with the 2nd adhesion part piled up in an adhesion state in a field different from.
前記基材は、スリットにより形成され当該基材の面と交差する方向に曲げ変形可能な第2曲げ部を備え、
前記基材の前記反対側の面における前記第2曲げ部に前記第2粘着部が粘着状態で重ねられている請求項1に記載の熱伝導シート。
The base material includes a second bending portion that is formed by a slit and can be bent and deformed in a direction intersecting the surface of the base material.
The heat conductive sheet according to claim 1, wherein the second adhesive portion is overlapped with the second bent portion on the opposite surface of the base material in an adhesive state.
前記第1曲げ部及び前記第2曲げ部は、共に複数であって、複数の前記第1曲げ部が並んだ第1曲げ部列と複数の前記第2曲げ部が並んだ第2曲げ部列とが隣り合っており、
前記第1曲げ部列の前記第1曲げ部と、前記第1曲げ部列と隣り合う前記第2曲げ部列における前記第2曲げ部とは、並び方向の位置をずらして配置されている請求項2に記載の熱伝導シート。
There are a plurality of the first bending portions and the second bending portions, and a first bending portion row in which a plurality of the first bending portions are arranged and a second bending portion row in which the plurality of second bending portions are arranged. Are next to each other,
The first bent portion of the first bent portion row and the second bent portion in the second bent portion row adjacent to the first bent portion row are arranged with their positions in the arrangement direction being shifted. Item 3. The heat conductive sheet according to Item 2.
前記第1曲げ部と前記第2曲げ部との間には、前記スリットが共通に設けられている請求項2に記載の熱伝導シート。 The heat conductive sheet according to claim 2, wherein the slit is provided in common between the first bent portion and the second bent portion. 前記基材は、本体と、前記第1曲げ部とを備え、前記第2粘着部は、前記反対側の面における前記本体の位置に粘着状態で重ねられており、前記本体の前記第2粘着部が重ねられた位置における前記一方側の面には、第3粘着部が粘着状態で重ねられている請求項1ないし請求項4のいずれか一項に記載の熱伝導シート。 The base material includes a main body and the first bending portion, and the second adhesive portion is stacked in an adhesive state on the position of the main body on the opposite surface, and the second adhesive portion of the main body The heat conductive sheet as described in any one of Claim 1 thru | or 4 with which the 3rd adhesion part is accumulated in the adhesion state on the said one side surface in the position where the part was accumulated. 前記第2粘着部と前記第3粘着部とを合わせた厚みは、前記第1粘着部の厚みとほぼ等しい請求項5に記載の熱伝導シート。 The heat conductive sheet according to claim 5, wherein a thickness of the second adhesive portion and the third adhesive portion is substantially equal to a thickness of the first adhesive portion. 通電電流に応じて発熱する発熱部材と、
前記発熱部材の熱を放散させる放熱部材と、
請求項1ないし請求項6のいずれか一項に記載の熱伝導シートと、を備え、前記熱伝導シートは、前記発熱部材と前記放熱部材との間に配される回路構成体。
A heating member that generates heat in response to an energization current;
A heat dissipating member that dissipates heat of the heat generating member;
A heat conductive sheet according to any one of claims 1 to 6, wherein the heat conductive sheet is disposed between the heat generating member and the heat radiating member.
請求項7に記載の回路構成体と、前記回路構成体が収容されるケースと、を備えた電気接続箱。 An electrical junction box comprising the circuit structure according to claim 7 and a case in which the circuit structure is accommodated.
JP2013126264A 2013-06-17 2013-06-17 Thermal conductive sheet, circuit constituent and electric connection box Pending JP2015002623A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016035574A1 (en) * 2014-09-01 2016-03-10 株式会社オートネットワーク技術研究所 Circuit structure, and method for manufacturing circuit structure
WO2016063706A1 (en) * 2014-10-23 2016-04-28 株式会社オートネットワーク技術研究所 Circuit structure and method for manufacturing circuit structure
WO2016111208A1 (en) * 2015-01-08 2016-07-14 株式会社寺岡製作所 Adhesive tape

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016035574A1 (en) * 2014-09-01 2016-03-10 株式会社オートネットワーク技術研究所 Circuit structure, and method for manufacturing circuit structure
JP2016052202A (en) * 2014-09-01 2016-04-11 株式会社オートネットワーク技術研究所 Circuit structure and method of manufacturing circuit structure
WO2016063706A1 (en) * 2014-10-23 2016-04-28 株式会社オートネットワーク技術研究所 Circuit structure and method for manufacturing circuit structure
JP2016086464A (en) * 2014-10-23 2016-05-19 株式会社オートネットワーク技術研究所 Circuit structure and method for manufacturing circuit structure
US10136511B2 (en) 2014-10-23 2018-11-20 Autonetworks Technologies, Ltd. Circuit assembly and method for manufacturing circuit assembly
WO2016111208A1 (en) * 2015-01-08 2016-07-14 株式会社寺岡製作所 Adhesive tape
JPWO2016111208A1 (en) * 2015-01-08 2017-06-08 株式会社寺岡製作所 Adhesive tape

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