JP6536530B2 - 樹脂金属接合体及び圧力センサ - Google Patents
樹脂金属接合体及び圧力センサ Download PDFInfo
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- 229910052751 metal Inorganic materials 0.000 title claims description 81
- 239000002184 metal Substances 0.000 title claims description 81
- 229920003002 synthetic resin Polymers 0.000 claims description 39
- 239000000057 synthetic resin Substances 0.000 claims description 39
- 239000012530 fluid Substances 0.000 claims description 38
- 229920005989 resin Polymers 0.000 claims description 22
- 239000011347 resin Substances 0.000 claims description 22
- 239000000463 material Substances 0.000 description 16
- 239000011800 void material Substances 0.000 description 11
- 238000005259 measurement Methods 0.000 description 8
- 238000012986 modification Methods 0.000 description 8
- 230000004048 modification Effects 0.000 description 8
- 239000007788 liquid Substances 0.000 description 6
- 238000012545 processing Methods 0.000 description 6
- 230000008595 infiltration Effects 0.000 description 4
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- 238000000034 method Methods 0.000 description 4
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- 238000003486 chemical etching Methods 0.000 description 3
- -1 polypropylene Polymers 0.000 description 3
- 238000003672 processing method Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
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- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
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- 150000001875 compounds Chemical class 0.000 description 1
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- 229910052742 iron Inorganic materials 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
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- 229920001707 polybutylene terephthalate Polymers 0.000 description 1
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- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920000069 polyphenylene sulfide Polymers 0.000 description 1
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- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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Description
前記金属表面に複数形成された、ミクロンオーダーの深さを有する凹部であるマイクロ凹部(201)と、
前記金属表面における、前記マイクロ凹部とは異なる部分である平坦部(202)と、
前記金属表面に複数形成された、サブミクロンオーダー又はナノオーダーの高さ又は深さを有する凹凸であるナノ凹凸(203)と、
を有し、
前記マイクロ凹部は、前記平坦部よりも、前記ナノ凹凸が少なくなるように形成されている。
図1を参照すると、本実施形態に係る圧力センサ1は、車両に搭載される流体圧センサであって、車両内の流体圧力(例えば、燃料圧力、ブレーキ液圧、等。)に対応した電気信号(例えば電圧)を出力するように構成されている。具体的には、圧力センサ1は、ハウジング2と、コネクタケース3と、センシング部4とを備えている。
図2を参照すると、樹脂金属接合体100は、合成樹脂部材101と金属部102との接合体として形成されている。金属部102は、例えば、ターミナル部材31又はリードフレーム41等の金属部材であって、金属表面200を有している。即ち、樹脂金属接合体100は、図1における、ターミナル部材31と樹脂部32との接合体であるコネクタケース3に対応し得る。あるいは、樹脂金属接合体100は、図1における、リードフレーム41と樹脂ケース43との接合体であるセンシング部4に対応し得る。
マイクロ凹部201の深さ及び開口幅は、以下のようにして定義することが可能である。平坦部202におけるナノ凹凸203を平滑化した場合(即ちナノ凹凸203が形成されていない場合)の、平坦部202の仮想的な平面状の表面を、図2等の断面図にて「仮想外形線VL」として示す。この場合、マイクロ凹部201の深さは、上記の仮想的な表面の法線方向(即ち図2における上下方向)における、仮想外形線VLとマイクロ凹部201の底部との距離となる。
合成樹脂部材101を構成する合成樹脂材料としては、例えば、ポリプロピレンサルファイド、ポリフェニレンサルファイド、ポリブチレンテレフタレート、ポリエチレンテレフタレート、ポリアミド、等の熱可塑性樹脂を用いることが可能である。あるいは、合成樹脂部材101を構成する合成樹脂材料としては、例えば、フェノール樹脂、メラミン樹脂、エポキシ樹脂、等の熱硬化性樹脂を用いることが可能である。金属部102を構成する金属材料としては、例えば、アルミ、ニッケル、銅、鉄、及びこれらの元素のうちの少なくとも1つを含有する合金を用いることが可能である。
樹脂金属接合体100を形成する工程において、合成樹脂部材101を構成する合成樹脂材料は、平坦部202に密着しつつ、マイクロ凹部201の内部に侵入する。すると、マイクロ凹部201によって金属表面200の全体に形成されたミクロンオーダーの凹凸と、平坦部202に形成されたナノ凹凸203とにより、金属表面200と合成樹脂部材101との強固な接合が得られる。
本発明は上記実施形態に限定されるものではなく、上記実施形態に対しては適宜変更が可能である。以下、代表的な変形例について説明する。以下の変形例の説明においては、上記実施形態と異なる部分についてのみ説明する。また、上記実施形態と変形例とにおいて、互いに同一又は均等である部分には、同一符号が付されている。したがって、以下の変形例の説明において、上記実施形態と同一の符号を有する構成要素に関しては、技術的矛盾又は特段の追加説明なき限り、上記実施形態における説明が適宜援用され得る。
100 樹脂金属接合体
101 合成樹脂部材
102 金属部
200 金属表面
201 マイクロ凹部
202 平坦部
203 ナノ凹凸
204 ナノ凹部
205 ナノ凸部
Claims (10)
- 金属表面(200)と合成樹脂部材(101)との接合体である樹脂金属接合体(100)において、
前記金属表面に複数形成された、ミクロンオーダーの深さを有する凹部であるマイクロ凹部(201)と、
前記金属表面における、前記マイクロ凹部とは異なる部分である平坦部(202)と、
前記金属表面に複数形成された、サブミクロンオーダー又はナノオーダーの高さ又は深さを有する凹凸であるナノ凹凸(203)と、
を有し、
前記マイクロ凹部は、前記平坦部よりも、前記ナノ凹凸が少なくなるように形成された、
樹脂金属接合体。 - 前記平坦部における前記ナノ凹凸の高さは、前記マイクロ凹部における前記ナノ凹凸の高さよりも高い、請求項1に記載の樹脂金属接合体。
- 前記マイクロ凹部における前記ナノ凹凸の密度は、前記平坦部における前記ナノ凹凸の密度よりも低い、請求項1又は2に記載の樹脂金属接合体。
- 前記マイクロ凹部は、断面視にて略V字状又は略U字状に形成された、
請求項1〜3のいずれか1つに記載の樹脂金属接合体。 - 前記マイクロ凹部は、深さをD、開口幅をWとした場合に、D/W=1〜5となるように形成された、
請求項1〜4のいずれか1つに記載の樹脂金属接合体。 - 流体の圧力に対応した電気出力を発生する圧力センサ(1)において、
金属表面(200)と合成樹脂部材(101)との接合体であって、前記流体に面するように配置されるように設けられた、樹脂金属接合体(100)を備え、
前記金属表面は、
ミクロンオーダーの深さを有する凹部であるマイクロ凹部(201)と、
前記マイクロ凹部とは異なる部分である平坦部(202)と、
サブミクロンオーダー又はナノオーダーの高さ又は深さを有する凹凸であるナノ凹凸(203)と、
を有し、
前記マイクロ凹部は、前記平坦部よりも、前記ナノ凹凸が少なくなるように形成された、
圧力センサ。 - 前記平坦部における前記ナノ凹凸の高さは、前記マイクロ凹部における前記ナノ凹凸の高さよりも高い、請求項6に記載の圧力センサ。
- 前記マイクロ凹部における前記ナノ凹凸の密度は、前記平坦部における前記ナノ凹凸の密度よりも低い、請求項6又は7に記載の圧力センサ。
- 前記マイクロ凹部は、断面視にて略V字状又は略U字状に形成された、
請求項6〜8のいずれか1つに記載の圧力センサ。 - 前記マイクロ凹部は、深さをD、開口幅をWとした場合に、D/W=1〜5となるように形成された、
請求項6〜9のいずれか1つに記載の圧力センサ。
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