JP7416447B2 - 伸縮性のある配線に接続されたセンサ - Google Patents
伸縮性のある配線に接続されたセンサ Download PDFInfo
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- JP7416447B2 JP7416447B2 JP2021517386A JP2021517386A JP7416447B2 JP 7416447 B2 JP7416447 B2 JP 7416447B2 JP 2021517386 A JP2021517386 A JP 2021517386A JP 2021517386 A JP2021517386 A JP 2021517386A JP 7416447 B2 JP7416447 B2 JP 7416447B2
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- H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
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- A—HUMAN NECESSITIES
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
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- H01R12/59—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures
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- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
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- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
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Description
相互面積は、たとえば、せん断荷重下で変化してもよい。
これらの原理は当業者に知られている。簡単な形では、物体が電極に近づいたり遠ざかったりすると、周囲に対する電極の静電容量が変化する。典型的には、2つの電極は、電極間の材料が使用中に圧縮されるように精度を向上させるために使用される。このようなセンサは、フィンランド国特許第127245号明細書に開示されている。タッチセンサでは、接触する物体(たとえば、ユーザの指)は、たとえば空気とは異なる誘電率を有する。したがって、電極の静電容量は、(上記の動作原理1に従って)接触する物体の動きによって変化する。
(i)図3a1および図3a2に示されるように、センサ100の第2部分100bは、圧縮性層310の第2部分310bを含み、圧縮性層310の第2部分310bのヤング率が、圧縮性層310の第1部分310aのヤング率よりも小さい、または
(ii)図3b2に示されるように、圧縮性層310は、センサ100の第2部分100bまで延在しない、または
(iii)図3e1および図3e2に示されるように、圧縮性層310の第2部分310bの厚みT310bは、圧縮性層310の第1部分310aの厚みT310aよりも小さい。
・層(310,330)を使用し、その少なくとも一部は、ワイヤ222まで横方向(すなわち、厚みの方向Szに垂直)に延びない。その結果、間隙312,332が形成され、これは事実上、第2部分100bの面内剛性を低減する。
・第1部分100a内よりも第2部分100b内の層(310,330)に柔らかい材料を使用する。
Claims (15)
- 可撓性で伸縮性のある第1導電性ワイヤ(222)と、
圧縮性層(310)と、
一体型補強構造(320)と、
静電容量を測定するための第1電極(224)であって、第1導電性ワイヤ(222)に結合される、第1電極(224)とを含む静電容量式センサ(100)において、
静電容量式センサ(100)は、
静電容量式センサ(100)の第1部分(100a)であって、センサの厚みの方向(Sz)にセンサ(100)を通って延び、
補強構造(320)の第1部分(320a)と、
第1導電性ワイヤ(222)の第1部分(222a)と、
圧縮性層(310)の第1部分(310a)とを含み、
補強構造(320)の第1部分の少なくとも一部が、センサ(100)の厚みの方向(Sz)において、圧縮性層(310)の第1部分(310a)の少なくとも一部と重なり、
圧縮性層(310)の第1部分(310a)の少なくとも一部が、センサ(100)の厚みの方向(Sz)において、第1導電性ワイヤ(222)の第1部分(222a)の少なくとも一部と重なる、静電容量式センサ(100)の第1部分(100a)と、
静電容量式センサ(100)の第2部分(100b)であって、センサの厚みの方向(Sz)にセンサ(100)を通って延び、
補強構造(320)の第2部分(320b)と、
第1導電性ワイヤ(222)の第2部分(222b)とを含む、静電容量式センサ(100)の第2部分(100b)と、
に分割可能であり、
第1導電性ワイヤ(222)は、第1ワイヤ(222)を、フレキシブル回路基板(410)またはコネクタ(405)などの他の導電性構造(400)に接続するための第1接合部(226)に取り付けられ、
第1導電性ワイヤ(222)は、第1接合部(226)から、センサ(100)の第2部分(100b)を介して、センサ(100)の第1部分(100a)まで、そしてさらに第1電極(224)まで延び、
[A]
センサ(100)の第2部分(100b)は、圧縮性層(310)の第2部分(310b)を含み、
圧縮性層(310)の第2部分(310b)の面内剛性は、圧縮性層(310)の第1部分(310a)の面内剛性よりも小さい、または
[B]
圧縮性層(310)はセンサ(100)の第2部分(100b)まで延在しない、
ことを特徴とする静電容量式センサ(100)。 - 圧縮性層(310)の第2部分(310b)のヤング率は、圧縮性層(310)の第1部分(310a)のヤング率よりも小さい、および/または
圧縮性層(310)の第2部分(310b)の厚み(T310b)は、圧縮性層(310)の第1部分(310a)の厚み(T310a)よりも小さいことを特徴とする請求項1に記載の静電容量式センサ(100)。 - センサ(100)の第1部分(100a)内で、第1導電性ワイヤ(222)の第1部分(222a)は、直接または少なくとも1つの層を介して、センサ(100)の厚みの方向(Sz)に、補強構造(320)の第1部分(320a)に取り付けられ、
センサ(100)の第2部分(100b)内で、第1導電性ワイヤ(222)の第2部分(222b)は、直接または少なくとも1つの層を介して、センサ(100)の厚みの方向(Sz)に、補強構造(320)の第2部分(320b)に取り付けられることを特徴とする請求項1または2に記載の静電容量式センサ(100)。 - センサ(100)の変形された第1部分(100a’)は、第1面内剛性を有し、センサ(100)の変形された第2部分(100b’)は、第1面内剛性よりも低い第2面内剛性を有し、
変形された第1部分(100a’)は、センサ(100)の第1部分(100a)から補強構造(320)の第1部分(320a)を除去することによって、センサ(100)の第1部分(100a)から変形され、
変形された第2部分(100b’)は、センサ(100)の第2部分(100b)から補強構造(320)の第2部分(320b)を除去することによって、センサ(100)の第2部分(100b)から変形されることを特徴とする請求項1~3のいずれか1項に記載の静電容量式センサ(100)。 - 第1導電性ワイヤ(222)に接続されるフレキシブル基板(410)を含むことを特徴とする請求項1~4のいずれか1項に記載の静電容量式センサ(100)。
- 静電容量式センサ(100)の第1部分(100a)の外側に配置され、かつ
第1接合部(226)に電気的に接続される、剛性構成要素(420)を含むことを特徴とする請求項1~5のいずれか1項に記載の静電容量式センサ(100)。 - 静電容量式センサ(100)の第1部分(100a)の外側に配置され、かつ
第1接合部(226)に電気的に接続される、剛性構成要素(420)を含み、
フレキシブル基板(410)は、第1導電性ワイヤ(222)に接続され、
フレキシブル基板(410)は、剛性構成要素(420)に接続されることを特徴とする請求項5に記載の静電容量式センサ(100)。 - 可撓性で伸縮性のある基板(210)を含む多層導体構造(200)を含み、第1導電性ワイヤ(222)は、基板(210)上に配置されることを特徴とする請求項1~7のいずれか1項に記載の静電容量式センサ(100)。
- 静電容量式センサ(100)の第2部分(100b)内で、第1導電性ワイヤ(222)は蛇行していることを特徴とする請求項1~8のいずれか1項に記載の静電容量式センサ(100)。
- 静電容量式センサ(100)の第2部分(100b)内で、第1導電性ワイヤ(222)は、センサ(100)の厚みの方向(Sz)に蛇行していることを特徴とする請求項9に記載の静電容量式センサ(100)。
- センサ(100)の第2部分(100b)の少なくとも一部は、接合部(226)とセンサ(100)の第1部分(100a)との間に、センサ(100)の厚みの方向(Sz)に垂直な方向に配置され、
第2部分(100b)内に延びる第1ワイヤ(222)の部分の長さ(L222b)は、第1部分(100a)内の圧縮性層(310)の厚み(T310a)よりも大きいことを特徴とする請求項1~10のいずれか1項に記載の静電容量式センサ(100)。 - 第1共通電位電極(340)を含み、
圧縮性層(310)の一部は、センサ(100)の厚みの方向(Sz)において、第1共通電位電極(340)と第1電極(224)との間に配置されることを特徴とする請求項1~11のいずれか1項に記載の静電容量式センサ(100)。 - スペーサ層(330)を含み、
第1導電性ワイヤ(222)の少なくとも一部は、センサ(100)の厚みの方向(Sz)において、圧縮性層(310)とスペーサ層(330)との間に配置されることを特徴とする請求項1~12のいずれか1項に記載の静電容量式センサ(100)。 - 第2共通電位電極(350)を含み、
スペーサ層(330)の一部は、センサ(100)の厚みの方向(Sz)において、第2共通電位電極(350)と第1電極(224)との間に配置されることを特徴とする請求項13に記載の静電容量式センサ(100)。 - 第2電極(225)と、
第2導電性ワイヤ(223)とを含み、
第2導電性ワイヤ(223)は、第2導電性ワイヤ(223)を、フレキシブル回路基板(410)またはコネクタ(405)などの別の導電性構造(400)に接続するための第2接合部(227)に取り付けられ、
第2導電性ワイヤ(223)は、第2接合部(227)から多層導体構造(200)の第2部分(200b)を介して、多層導体構造(200)の第1部分(200a)まで、そしてさらに第2電極(225)まで延びることを特徴とする請求項1~14のいずれか1項に記載の静電容量式センサ(100)。
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