JP2004039347A

JP2004039347A - Terminal for battery holder

Info

Publication number: JP2004039347A
Application number: JP2002192555A
Authority: JP
Inventors: Yuichi Akita; 穐田　裕一
Original assignee: Yazaki Corp; Japan Chain Terminal Co Ltd
Current assignee: Yazaki Corp; Japan Chain Terminal Co Ltd
Priority date: 2002-07-01
Filing date: 2002-07-01
Publication date: 2004-02-05

Abstract

<P>PROBLEM TO BE SOLVED: To reduce a production cost to the utmost. <P>SOLUTION: A plus terminal 5 contacts electrically with a plus terminal of a button type battery 2 stored in a battery storage part 10 comprising a bottom plate 7 and peripheral walls 8 and 9 provided in the bottom plate 7, and a minus terminal 6 contacts electrically with a minus electrode. The plus terminal 5 and/or the minus terminal comprise/comprises attaching parts 31, 41 formed by folding slender and substantially rectangular metal pieces 30 and 40 to be attached to the peripheral walls 8 and 9, locking parts 32 and 42 provide in one-portions of the metal pieces 30 and 40 for forming the attaching parts 31 and 41 and, engaged with the peripheral walls 8 and 9 to lock the attaching parts 31 and 41, and contact terminals 34 and 43 electrically cntacting with an electrode part of the battery 2 stored in the battery storage part 10 by folding the metal pieces 30 and 40 in the battery storage part 10 side of the attaching parts 31 and 41. <P>COPYRIGHT: (C)2004,JPO

Description

【０００１】
【発明の属する技術分野】
本発明は、ボタン電池を収容する電池ホルダに用いられる電池ホルダ用端子に関するものである。
【０００２】
【従来の技術】
ボタン電池は、ＰＣ（パーソナルコンピュータ）、ゲーム機、ＡＶ機器等の配線基板にメモリをバックアップするために用いられている。ボタン電池は、配線基板に固着されている電池ホルダに着脱自在に収容されている。
電池ホルダとしては、既にいろいろなものが提案されており、例えば、ほぼ円形状の底板の周縁部に円筒形の周壁を設けて、円盤状のボタン電池を内側に収容できるホルダ本体（ほぼ有底円筒状のホルダ本体）と、そのホルダ本体に取り付けられた２つの端子とからなる。そのホルダ本体内にボタン電池を嵌め込んで収容させると、ボタン電池は周壁に設けられた抜出防止部によってホルダ本体から簡単に抜けないように収容されると共に、プラス端子がボタン電池のプラス極に、マイナス端子がボタン電池のプラス極にそれぞれ電気的に接続されるようになっている。
【０００３】
ところで、ボタン電池は、例えば、ＰＣ等の大量生産される配線基板等に用いられるため、このボタン電池を収容する電池ホルダも大量に生産される。このため、近年の低コスト化及び配線基板の軽量化を図る上ではできるだけ、電池ホルダの低コスト化及び軽量化を図りたいため、その電池ホルダに用いられる端子もできるだけ低コストで生産することが望まれている。
【０００４】
【発明が解決しようとする課題】
そこで、本発明は、このような実状に鑑みなされたものであり、その目的は、生産コストを可及的に低減することができる電池ホルダ用端子を提供することにある。
【０００５】
【課題を解決するための手段】
前記目的を達成するために、本発明の電池ホルダ用端子は、底板とその底板に設けられた周壁とからなる電池収容部に収容したボタン電池のプラス極にプラス端子が電気的に接触すると共に、マイナス極にマイナス端子が電気的に接触する電池ホルダ用端子において、前記プラス端子及び／又はマイナス端子が、細長のほぼ矩形状の金属片を、前記周壁に取り付けられるべく折り曲げて形成される取付部と、その取付部を形成する金属片の一部に設けられ、周壁と係合して取付部を係止する係止部と、前記取付部より電池収容部側となる金属片を折り曲げて電池収容部に収容したボタン電池の電極に電気的に接触する接触端子部とからなるものである（請求項１）。
【０００６】
このように構成することで、プラス端子及び／又はマイナス端子が細長のほぼ矩形状の金属片を折り曲げて形成されているため、１枚の金属板から多数のプラス端子及び／又はマイナス端子を製造する場合には、無駄になる部分が少ないので、大量生産には特に適し、生産コストを可及的に低減することができる。
【０００７】
前記ボタン電池が、マイナス極が底板側になるように電池収容部に収容され、前記周壁が、前記プラス端子及びマイナス端子がそれぞれ個別に取り付けられる対向する２つの周壁からなり、前記プラス端子の取付部と接触端子部との間に、前記電池収容部に収容されたボタン電池によって弾性変形してその付勢力によりボタン電池を他方の周壁に押圧する弾性端子部が設けられていることが好ましい（請求項２）。
【０００８】
このように、プラス端子の弾性端子部の付勢力によって電池収容部に収容されたボタン電池が他方の周壁に押圧されるため、プラス端子がボタン電池を電池収容部に収容（係止）させるために寄与しているので、ボタン電池を係止するための部材を少なくすることができ、電池ホルダとしての全体的な低コスト化につながる。
【０００９】
前記プラス端子の取付部が、ほぼコ字状に折り曲げられて形成され、前記弾性端子部が、ほぼＵ字状に折り曲げられて形成され、前記接触端子部が、前記電池収容部に収容されたボタン電池の離脱を防止すべくその電池のプラス極側円形表面に接触する接触片であることが好ましい（請求項３）。
これにより、プラス端子は、その形状が複雑ではなく簡単な形状であるので、容易に製造することができ、低コスト化を図れる。
【００１０】
前記弾性端子部の前記ボタン電池に接触する箇所の両側部又は両側部近傍に、ボタン電池側に突出する接触部がそれぞれ設けられていることが好ましい（請求項４）。
これにより、ボタン電池は端子の両側部又は両側部近傍の２つの接触部の２箇所に接触するので、端子の１箇所に接触する場合に比してボタン電池の横ずれを防止することができる。
【００１１】
前記接触片の先端部を、前記ボタン電池のプラス極側円形表面とは反対側に湾曲又は屈曲させることが好ましい（請求項５）。
これにより、例えば、ボタン電池を電池収容部に収容させるべく接触端子部に接触させるとき、接触片の先端部が板状であると、その先端部に引っかかることもあり得るが、湾曲又は屈曲させることにより、その心配もなく、ボタン電池の収容をスムーズに行える。また、電池収容部に収容されているボタン電池を取り外すときには、平板状の接触片がボタン電池の円形表面に接触している場合に比してボタン電池の取出を容易に行える。
【００１２】
前記ボタン電池が、マイナス極が底板側になるように電池収容部に収容され、前記周壁が、前記プラス端子及びマイナス端子がそれぞれ個別に取り付けられる対向する２つの周壁からなり、前記マイナス端子の取付部が、ほぼコ字状に折り曲げられて形成されていると共に、前記接触端子部が、前記取付部を一方の周壁に取り付けたとき、電池収容部に収容されたボタン電池のマイナス極側円形表面に接触すべく底板の近傍から底板に対して傾斜して折り曲げて形成されていることが好ましい（請求項６）。
これにより、マイナス端子は、その形状が複雑ではなく簡単な形状であるので、容易に製造することができ、低コスト化を図れる。
【００１３】
前記接触端子部の先端部を、前記ボタン電池のマイナス極側円形表面とは反対側に湾曲又は屈曲させることが好ましい（請求項７）。
これにより、電池収容部にボタン電池を収容するとき、接触端子部の先端部が板状であると、その先端部に引っかかることもあり得るが、湾曲又は屈曲させることにより、その心配もなく、ボタン電池の収容をスムーズに行える。
【００１４】
前記接触端子部の少なくとも前記ボタン電池のマイナス極側円形表面に接触する箇所が、先端部から端子の長手方向に沿って延在するスリットによって２つ以上の接触端子片に分割されていることが好ましい（請求項８）。
これにより、ボタン電池のマイナス極側円形表面に１つの接触端子部が接触する場合より２つ以上の接触端子片が接触する場合の方がボタン電池ががたつきにくいので、ボタン電池を電池収容部に安定して収容することができる。
【００１５】
前記係止部が、前記端子の長手方向に沿って延在するコ字状の切り込みによって形成される係止片を前記取付部内に位置させてなることが好ましい（請求項９）。
これにより、簡単な形状で確実に係止することができる係止部が得られる。
【００１６】
【発明の実施の形態】
以下、本発明の実施の形態を添付図面に基づいて詳述する。
図１乃至図８は本発明の電池ホルダ用端子が示めされている図である。図１乃至図３において、１は円盤状のボタン電池２を収容する電池ホルダを示す。
ボタン電池２は、市販されている円盤状に形成されているものである。ボタン電池２の円形面の一面がプラス極に、他の面がマイナス極として形成されている。プラス極の円形面はマイナス極の円形面より径が大きく形成され、このマイナス極の周縁部にはプラス極とマイナス極とを仕切る段差３が設けられている。つまり、ボタン電池２は、マイナス極側の円形面と周面（側面）とが連接されてプラス極として形成されている。
【００１７】
電池ホルダ１は、ボタン電池２を収容するホルダ本体４と、ホルダ本体４に取付けられ、収容されたボタン電池２のプラス極に電気的に接続されるプラス端子５と、ホルダ本体４に取付けられ、収容されたボタン電池２のマイナス極に電気的に接続されるマイナス端子６とからなる。
【００１８】
ホルダ本体４は、底板７と、その底板７の対向する２箇所に設けられる２つの周壁８、９とから一体的に絶縁材料例えば合成樹脂により成形され、その底板７と周壁８、９とにより電池収容部１０が形成される。
【００１９】
底板７は、少なくともボタン電池２の直径より長い長い部分があればどのような形状に形成してもよく、例えば、ボタン電池２の径より大径の円形平板状に形成されている。
底板７の周壁間８、９の一方の周壁８の近傍又は両方の周壁９の近傍、図示例では両方の周壁８、９の近傍には切欠部１１がそれぞれ設けられている。切欠部１１の形状は、特に限定されず、図示するようにほぼ矩形状でもよく、また円形状、矩形状、多角形状どのような形状に形成してもよい。
底板７の切欠部１１、１１間の厚さは、他の底板７の厚さより薄く形成することが好ましい。
【００２０】
２つの周壁８、９は、円形の底板７の周縁部の対向す２箇所にその平面に対してほぼ直交する方向に沿って一体的にそれぞれ設けられている。これら周壁８、９は、外周が底板７の周縁部の径とほぼ同径で、内周がボタン電池２（プラス極側の円形面）の外径より小径の円弧状にそれぞれ形成されている。これら周壁の一方は、その周方向の長さが比較的長い第１周壁８として、他方は第１周壁８より周方向の長さが短い第２周壁９として形成されている。これら第１周壁８と第２周壁９とは、厚さがほぼ同じで同一の軸を中心とした円周上に配設されている。第１、第２周壁８、９の高さは、底板７からボタン電池２の厚さよりやや高く形成されている。
【００２１】
また、第１周壁８と第２周壁９とが設けられている底板７の周縁部には、ボタン電池２の電池収容部１０への逆向き（プラス面が底板７側になる向き）の挿入を防止する段部１２がそれぞれ一体的に設けられている。
段部１２は、マイナス面の周縁部の段差３を利用してボタン電池２の逆向きの挿入を防止するものであり、ボタン電池２のマイナス極の円形面の周縁部の形状に嵌合するように形成されている。つまり、段部１２は、ボタン電池２の円形面の周縁部がプラス極の場合には平面状に形成され、マイナス極の場合には段差３が設けられているので、その段差３に嵌合するように形成されている。
【００２２】
第１周壁８の周方向のほぼ中央部には、第１端子装着部１３が一体的に設けられていると共に、第２周壁９の周方向のほぼ中央部には、第２端子装着部１４が一体的に設けられている。
第１端子装着部１３は、一対の脚部１５、１６と、それら脚部１５、１６間を連結すると共にプラス端子５が取り付けられる端子取付部１７とからなる。
【００２３】
一対の脚部１５、１６は、第１周壁８の中央部から周方向にそれぞれ所定の距離離間した底板７の周縁部の２箇所に、第１、第２周壁８、９の対向方向に沿ってほぼ平行に延在する板状にそれぞれ形成されている。これら脚部８、９の互いに対向する内面の底板９の周縁部上より少し径方向外方には、その径方向に対してほぼ直交する方向に沿って延在する端子取付部１７が一体的に設けられている。
【００２４】
端子取付部１７は、ほぼ矩形平板状に形成され、電池収容部１０側の表面（第１面）１７ａが底板７の外周の円周上より径方向外方に位置されている。
端子取付部１７の底板７側の底板７とほぼ平行な面（下面）は、底板７の裏面の近傍の箇所に位置されていると共に、下面と対向する面（上面）は、底板７側の端部からほぼボタン電池２の厚さ離間した箇所（第１周壁８の延出端部（底板７とは反対側の端部）より底板７側に所定の距離離間した箇所）に位置されている。
【００２５】
端子取付部１７の第１面１７ａには、上面側の端部の近傍から下面側の端部までに係合部である断面ほぼ凹状の凹溝１８が設けられている。
端子取付部１７の反対の面（第２面）１７ｂには、下面側の端部の近傍から上面の端部にかけて漸次傾斜した傾斜面１９が設けられている。
【００２６】
第２端子装着部１４は、第１端子装着部１３と同様に、一対の脚部２０、２１と、それら脚部２０、２１間を連結すると共にマイナス端子６が取り付けられる端子取付部２２とからなる。
一対の脚部２０、２１は、第２周壁９の中央部から周方向にそれぞれ所定の距離離間した底板７の周縁部の２箇所に、第１、第２周壁８、９の対向方向に沿ってほぼ平行に延在する板状にそれぞれ形成されている。これら脚部２０、２１の互いに対向する内面の底板７の周縁部上より少し径方向外方には、その径方向に対してほぼ直交する方向に沿って延在する端子取付部２２が一体的に設けられている。
【００２７】
端子取付部２２は、ほぼ矩形平板状に形成され、電池収容部１０側の表面（第１面）２２ａが底板７の外周の円周上より径方向外方に位置されている。
端子取付部２２の底板７側の底板７とほぼ平行な面（下面）は、底板７の裏面の近傍の箇所に位置されていると共に、下面と対向する面（上面）は、底板７側の端部からほぼボタン電池２の厚さ離間した箇所（第２周壁９の延出端部（底板７とは反対側の端部）より底板７側に所定の距離離間した箇所）に位置されている。
端子取付部２２の両面２２ａ、２２ｂには、下面側の端部の近傍から上面の端部にかけて漸次傾斜した傾斜面２３、２４がそれぞれ設けられている。
【００２８】
この第２端子装着部１４に連設する第２周壁９の延出端部には、第１周壁方向に沿って底板７とほぼ平行に延在する突出片２５、２５が設けられている。突出片２５、２５は、電池収容部１０に収容したボタン電池２の離脱を防止すべくボタン電池２のプラス極側円形表面に接触するものである。突出片２５、２５の突出端部は、その突出端部と対向する第１周壁８との間の長さがボタン電池２（プラス極側円形面）の直径より若干長くなるような位置に配設されている。
【００２９】
プラス端子５は、図１及び図４に示すように、細長のほぼ矩形状の例えば金属片３０を、第１端子装着部１３の端子取付部１７に取り付けられるべく折り曲げて形成される取付部３１と、その取付部３１を形成する金属片３０の一部に設けられ、第１端子装着部１３の端子取付部１７と係合して取付部３１を係止する係止部３２と、ボタン電池２を第２周壁９上から斜め方向に接触させたとき、この接触箇所と対向する箇所のボタン電池２が前記突出片２５、２５を越えて電池収容部１０内に収容されるべく弾性変形する弾性端子部３３と、その弾性端子部３３より電池収容部１０側となる金属片３０を折り曲げて電池収容部１０に収容したボタン電池２のプラス極側の円形面に電気的に接触する接触端子部３４とからなるものである。
【００３０】
取付部３１は、第１端子装着部１３の端子取付部１７に着脱自在に取り付けることができるならばどのような形状に形成してもよく、例えば、コ字状、Ｕ字状、Ω状等の形状に形成され、好ましくは、端子取付部１７の形状に沿ってコ字状に形成することがよい。
弾性端子部３３は、弾性変形して電池収容部１０内にボタン電池２を収容させることができるならばどのような形状に形成してもよく、例えば、Ｕ字状、コ字状、Ω状等の形状に形成され、好ましくは、Ｕ字状に形成することがよい。
取付部３１と弾性端子部３３とは、その間に間隔を設けてもよいが、図示するように連続して設けるようにすることが好ましい。
【００３１】
すなわち、プラス端子５は、具体的には例えば、金属片３０を、配線基板に半田付けにより固着される固着部３５からほぼ直交する方向に沿って折り曲げる。この第１折曲部３６ａから第１端子装着部１３の端子取付部１７の長手方向の長さ（上面と下面との間の長さ）より若干長い長さ離間した位置で固着部３５側とは反対側にほぼ直交する方向に沿って折り曲げ、さらにその第２折曲部３６ｂから端子取付部１７の厚さより若干厚い長さ離間した位置で折り返すようにほぼ直交する方向に沿って折り曲げる。すなわち、金属片３０は、固着部３５からほぼコ字状に折り曲げられ、このコ字状に折り曲げられた部分が第１端子装着部１３の端子取付部１７に取り付けられる取付部３１として形成される。
【００３２】
さらに第３折曲部からほぼＵ字状に金属片３０を折り曲げる。Ｕ字状の底部は固着部３５の近傍に位置されると共に、その底部から先端部間での長さが基端部（第３折曲部３６ｃ）までの長さより長い位置に位置されている。この位置は、プラス端子５を第１端子装着部１３の端子取付部１７に取り付けて、電池収容部１０にボタン電池２を収容したとき、ボタン電池２のプラス極側の円形面より若干高い位置である。このＵ字状に折り曲げられた部分が弾性端子部３３であり、一種の板ばねとして構成されている。
【００３３】
さらに、金属片３０を、Ｕ字状の先端部からＵ字状の部分とは反対側に、固着部３５と平行する面より弾性端子部３３側に傾斜するように折り曲げて、ボタン電池２のプラス極側の円形面に接触する接触端子部である接触片３４として形成され、これにより、プラス端子５が形成される。
【００３４】
また、係止部３２は、取付部３１を第１端子装着部１３の端子取付部１７に取り付けたとき、端子取付部１７に係合してプラス端子５を係止することができるならば、金属片３０（端子５）の一部をどのように加工してもよく、例えば、金属片３０の中央部にその長手方向に沿って延在するコ字状の切り込みを設け、この切り込みにより形成された部分を利用して係止片とすることが好ましい。
【００３５】
具体的には例えば、金属片３０の第１折曲部３６ａの中央部に、金属片３０の長手方向であって第２折曲部３９ｂ方向に沿ってコ字状に延在する切り込みを設ける。この切り込みにより形成された部分を固着部３５と同一平面状に位置させることで、コ字状の第１係止片３７が形成される。この第１係止片３７が、プラス端子５を第１端子装着部１３の端子取付部１７に取り付けたとき、端子取付部１７の下面に面接触（係合）してプラス端子５が係止されるようになっている。
【００３６】
また、取付部３１と弾性端子部３３との２つを兼ねる弾性端子部３３の基端部側の金属片３０の基端部の近傍のほぼ中央部に、基端部方向に向ってコ字状に延在する切り込みを設ける。この切り込みにより形成された部分を取付部３１内へと好ましくは２５〜３５°特に好ましくは３０°傾斜するように折り曲げることで、第２係止片３８が形成される。この第２係止片３８が、プラス端子５を第１端子装着部１３の端子取付部１７に取り付けたとき、端子取付部１７の第１面１７ａの凹溝１８に係合してプラス端子５が係止されるようになっている。
【００３７】
また、弾性端子部３３のボタン電池２の周面が接触する箇所つまり先端部側の金属片３０の両側部又は両側部の近傍に、弾性端子部３３内とは反対側に突出した接触部３９、３９をそれぞれ設けることが好ましい。接触部３９は、どのように形成してもよく、また、その形状も特に限定されず、例えば、図示するように両側部に設ける場合には、半円形状に突出させてもよい。また、接触部３９は、両側部の近傍に設ける場合には、図６に示すように、平面部５１を設けてその平面部５１の両側部の近傍に円形状の突出部により形成してもよい。
【００３８】
また、プラス端子５の固着部３５は、配線基板に半田付けにより固着されるように取付部に対してほぼ直交する方向に沿って形成したが、配線基板の溝や貫通孔に挿入する場合には、図５に示すように、固着部３５が連設されている取付部の面とほぼ平行に沿って延在するようにコ字状の連結部５０を介して形成するようにしてもよい。
また、接触片３４は平板状に形成してもよいが、接触片３４の先端部をボタン電池２のプラス極側円形表面とは反対側に湾曲又は屈曲させてもよい。例えば、図６に示すように、先端部近傍を接触片の折り曲げ方向とは反対側に例えばＲに折り曲げることが好ましい。
【００３９】
マイナス端子６は、図１及び図７に示すように、プラス端子５と同様に細長のほぼ矩形状の例えば金属片４０を折り曲げて形成されるものであり、第２端子装着部１４の端子取付部２２に取り付けられるべく折り曲げて形成される取付部４１と、その取付部４１を形成する金属片４０の一部に設けられ、第２端子装着部１４の端子取付部２２と係合して取付部４１を係止する係止部４２と、取付部４１より電池収容部１０側となる金属片４０を折り曲げて電池収容部１０に収容したボタン電池２のマイナス極側の円形面に電気的に接触する接触端子部４３とからなるものである。
取付部４１は、第２端子装着部１４の端子取付部２２に着脱自在に取り付けることができるならばどのような形状に形成してもよく、例えば、コ字状、Ｕ字状、Ω状等の形状に形成され、好ましくは、端子取付部の形状に沿ってコ字状に形成することがよい。
【００４０】
マイナス端子６は、具体的には例えば、金属片４０を、配線基板に半田付けにより固着される固着部４４からほぼ直交する方向に沿って折り曲げる。この第１折曲部４５ａから第２端装着部１４の端子取付部２２の長手方向の長さ（上面と下面との間の長さ）より若干長い長さ離間した位置で固着部４４側とは反対側にほぼ直交する方向に沿って折り曲げ、さらにその第２折曲部４５ｂから端子取付部２２の厚さより若干厚い長さ離間した位置で折り返すようにほぼ直交する方向に沿って折り曲げる。すなわち、金属片４０は、固着部４４からほぼコ字状に折り曲げられ、このコ字状に折り曲げられた部分が第２端子装着部１４の端子取付部２２に取り付けられる取付部４１として形成される。
【００４１】
さらに、金属片４０を、第３折曲部４５ｃから第２端子装着部１４の端子取付部２２の長手方向の長さ（上面と下面との間の長さ）より若干長い長さ離間した位置で固着部４４側とは反対側にほぼ直交する方向に沿って折り曲げる。さらにその第４折曲部４５ｄから所定の距離離間した位置で取付部４１側に傾斜するように折り曲げて、ボタン電池２のマイナス極の円形面に接触する接触端子部４３として形成し、これにより、マイナス端子６が形成される。
接触端子部４３の傾斜角度は、ボタン電池２のマイナス極の円形面に確実に接触するならば任意に決められ、例えば１５°〜２０°であることが好ましく、特に１８°であることが好ましい。
【００４２】
接触端子部４３の先端部は、傾斜方向とは反対側に湾曲又は屈曲させてもよい。例えば、先端部近傍を接触片の折り曲げ方向とは反対側に例えばＲに折り曲げることが好ましい。
また、接触端子部４３の幅方向のほぼ中央部には、基部（傾斜折曲部４５ｅ）の近傍から先端部にかけてスリット４６を設けて、２つの接触端子片４７、４７を構成し、これら２つの接触端子片４７、４７によりボタン電池２のマイナス極の円形面に接触するようにすることが好ましい。
【００４３】
また、係止部４２は、取付部４１を第２端子装着部１４の端子取付部２２に取り付けたとき、端子取付部２２に係合してプラス端子５を係止することができるならば、金属片４０（端子６）の一部をどのように加工してもよく、例えば、金属片の中央部にその長手方向に沿って延在するコ字状の切り込みを設け、この切り込みにより形成された部分を利用して係止片とすることが好ましい。
【００４４】
具体的には例えば、金属片４０の第１折曲部４５ａの中央部に、金属片４０の長手方向であって第２折曲部４５ｂ方向に沿ってコ字状に延在する切り込みを設ける。この切り込みにより形成された部分を固着部４４と同一平面状に位置させることで、コ字状の第１係止片４８が形成される。
また、金属片４０の第４折曲部４５ｄの中央部に、第３折曲部４５ｃに向ってコ字状に延在する切り込みを設ける。この切込みにより形成された部分を固着部４４と同一平面状に延在させることで、コ字状の第２係止片４９が形成される。これら第１、第２係止片４８、４９は、マイナス端子６を第２端子装着部１４の端子取付部２２に取り付けたとき、端子取付部２２の下面にそれぞれ面接触（係合）してマイナス端子６が係止されるようになっている。
【００４５】
なお、接触端子部４３は、第４折曲部４５ｄから所定の距離離間した位置で傾斜させて形成するが、第４折曲部４５ｄで例えば１５°〜２０°傾斜するように折り曲げて形成するようにしてもよい。
また、このマイナス端子６の固着部は、配線基板に半田付けにより固着されるように取付部４１に対してほぼ直交する方向に沿って形成したが、配線基板の溝や貫通孔に挿入する場合には、図８に示すように、固着部４４が連設されている取付部の面とほぼ平行に沿って延在するようにコ字状の連結部５０を介して形成するようにしてもよい。
【００４６】
さて、これらプラス端子５とマイナス端子６とを用いて電池ホルダ１を得るには、図１に示すように、ホルダ本体４の第１周壁８の第１端子装着部１３にプラス端子５を取り付けると共に、第２周壁９の第２端子装着部１４にマイナス端子６を取り付ける。
プラス端子５の取付は、具体的には、固着部３５がホルダ本体４の外側になるようにプラス端子５のほぼコ字状の取付部３１の開口部と第１端子装着部１３の端子取付部１７の上端部とをつき合わせて、プラス端子５の取付部３１を端子取付部１７に被せるように移動させ、取付部３１の第２折曲部３６ｂと第３折曲部３６ｃとの間の端子５が端子取付部１７の上端部に接触すると、第１係止片３７が端子取付部１７の下面に面接触（係合）すると共に、第２係止片３８が端子取付部１７の第１面１７ａの凹溝１８と係合し、プラス端子５がホルダ本体４に係止される。
【００４７】
このとき、端子取付部１７の第２面１７ｂには傾斜面１９が設けられているので、第１係止片３７が取付部３１内に延在していても、容易にプラス端子５を第１端子装着部１３の端子取付部１７に取り付けることができる。
また、係止部３２である第１、第２係止片３７、３８は、端子５の長手方向に沿って延在するコ字状の切り込みによって形成されているため、簡単な形状で確実にプラス端子５の係止を行える。
【００４８】
マイナス端子６の取付は、具体的には、固着部４４がホルダ本体４の外側になるようにマイナス端子６のほぼコ字状の取付部４１の開口部と第２端子装着部１４の端子取付部２２の上端部とをつき合わせて、取付部４１を端子取付部２２に被せるように移動させ、取付部４１の第２折曲部４５ｂと第３折曲部４５ｃとの間の端子６が端子取付部２２の上端部に接触すると、第１、第２係止片４８、４９が端子取付部２２の下面にそれぞれ面接触（係合）し、マイナス端子６がホルダ本体４に係止される。
【００４９】
このとき、端子取付部２２の両面には傾斜面２３、２４がそれぞれ設けられているので、第１、第２係止片４８、４９が取付部４１内にそれぞれ延在していても、容易にマイナス端子６を第２端子装着部１４の端子取付部２２に取り付けることができる。
また、係止部４２である第１、第２係止片４６、４９は、端子６の長手方向に沿って延在するコ字状の切り込みによって形成されているため、簡単な形状で確実にマイナス端子６の係止を行える。
【００５０】
このように得られた電池ホルダ１にボタン電池２を収容させるには、ボタン電池２をマイナス極側の円形面が底板７側になるようにして、ボタン電池２の周面をプラス端子５の弾性端子部３３に接触させる。このとき、弾性端子部３３と接触している周面と対向する周面側のボタン電池２は第２周壁９上に位置される。つまりボタン電池２は電池収容部１０（底板７）に対して傾斜した状態である。
【００５１】
このボタン電池２の第２周壁９上にある部分をプラス端子５側に押す（スライドさせる）と、ボタン電池２の周面と接触している弾性端子部３３がその押圧力によって付勢力に抗して弾性変形してボタン電池２がプラス端子５方向に移動（スライド移動）し、この接触箇所と対向する箇所のボタン電池２が第２周壁９の突出片２５、２５を越えることにより、ボタン電池２が電池収容部１０内に入る。電池収容部１０内に入ったボタン電池２は、図２及び図３に示すように、弾性端子部３３の付勢力（復元力）により第２周壁９方向に押圧されて移動して第２周壁９に当接すると共に、突出片２５、２５がボタン電池２のプラス極側の円形面に接触する。また、この突出片２５、２５が接触した箇所と対向する円形面にはプラス端子５の接触片３４が接触しているので、ボタン電池２は電池収容部１０内に嵌め込まれて電池収容部１０からの離脱が防止された状態で収容されることになる。
【００５２】
このように、電池収容部１０に収容されたボタン電池２の周面にプラス端子５の弾性端子部３３が接触すると共に、プラス極側の円形面に接触片３４が接触するので、ボタン電池２のプラス極とプラス端子５とが電気的に接続された状態となる。
また、ボタン電池２が電池収容部１０内に入ったとき、底板７近傍から電池収容部１０内にマイナス端子６の接触端子部３３が傾斜されているので、マイナス極側の円形面が接触端子部３３を押圧した状態で接触するので、ボタン電池２のマイナス極とマイナス端子６とが電気的に接続された状態となる。
【００５３】
したがって、本発明の電池ホルダ用端子は、端子として十分に機能することから、プラス端子５及びマイナス端子６はいずれも細長のほぼ矩形状の金属片３０、４０を折り曲げて形成されているため、１枚の金属板から多数のプラス端子５及び／又はマイナス端子６を製造する場合には、無駄になる部分が少ない。このため、プラス端子５及びマイナス端子６は、大量生産に特に適するので、生産コストを可及的に低減することができるものである。
【００５４】
また、ボタン電池２は、プラス端子５の弾性端子部３３の付勢力によって電池収容部１０に収容されるため、プラス端子５がボタン電池２を電池収容部１０に収容（係止）させるために寄与しているので、ボタン電池２を係止するための部材を少なくすることができ、電池ホルダ１としての全体的な低コスト化及び軽量化につながる。
【００５５】
また、プラス端子５の取付部３１はほぼコ字状に折り曲げられて形成されていると共に、弾性端子部３３は、取付部３１に連接されてほぼＵ字状に折り曲げられて形成され、かつ、接触端子部がボタン電池２のプラス極側円形表面に接触する接触片３４であるので、プラス端子５は形状が複雑ではなく簡単な形状であるので、容易に製造することができる。
【００５６】
また、弾性端子部３３のボタン電池２に接触する箇所の両側部又は両側部近傍には、ボタン電池２側に突出する接触部３９、３９がそれぞれ設けられているため、ボタン電池２は２つの接触部３９、３９の２箇所に接触するので、端子の１箇所に接触する場合に比してボタン電池２の横ずれを防止することができる。
【００５７】
また、接触片３４の先端部をボタン電池２のプラス極側円形表面とは反対側に湾曲又は屈曲させることにより、ボタン電池２を電池収容部１０に収容させるべく接触片３４に接触させるとき、接触片３４の先端部が板状であると、その先端部に引っかかることもあり得るが、その心配もなく、ボタン電池２の収容をスムーズに行える。また、電池収容部１０に収容されているボタン電池２を取り外すときには、平板状の接触片３４がボタン電池２の円形表面に接触している場合に比してボタン電池２の取出を容易に行える。
【００５８】
また、マイナス端子６の取付部４１はほぼコ字状に折り曲げられて形成されていると共に、接触端子部４３は、取付部４１を第２周壁９に取り付けたとき、電池収容部１０に収容されたボタン電池２のマイナス極側円形表面に接触すべく底板の近傍から底板７に対して傾斜して折り曲げて形成されているため、マイナス端子６は、形状が複雑ではなく簡単な形状であるので、容易に製造することができ、低コスト化を図れる。
【００５９】
また、マイナス端子６の接触端子部４３の先端部を、ボタン電池２のマイナス極側円形表面とは反対側に湾曲又は屈曲させることにより、電池収容部１０にボタン電池２を収容するとき、接触端子部４３の先端部が板状であると、その先端部に引っかかることもあり得るが、その心配もなく、ボタン電池２の収容をスムーズに行える。
【００６０】
また、マイナス端子６の接触端子部４３が２つ以上（図示例では２つ）の接触端子片４７、４７からなると、ボタン電池２のマイナス極側円形表面に１つの接触端子部が接触する場合よりボタン電池２ががたつきにくいので、ボタン電池２を電池収容部１０に安定して収容することができる。
【００６１】
【発明の効果】
以上要するに請求項１に記載の発明によれば、生産コストを可及的に低減することができる電池ホルダ用端子が得られる。
【００６２】
請求項２に記載の発明によれば、電池ホルダとしての全体的な低コスト化につながる。
【００６３】
請求項３に記載の発明によれば、プラス端子は、その形状が複雑ではなく簡単な形状であるので、容易に製造することができ、低コスト化を図れる。
【００６４】
請求項４に記載の発明によれば、ボタン電池は端子の両側部又は両側部近傍の２つの接触部の２箇所に接触するので、端子の１箇所に接触する場合に比してボタン電池の横ずれを防止することができる。
【００６５】
請求項５に記載の発明によれば、ボタン電池の収容をスムーズに行えると共に、ボタン電池の取出を容易に行える。
【００６６】
請求項６に記載の発明によれば、形状が複雑ではなく簡単な形状であるので、容易に製造することができ、低コスト化を図れる。
【００６７】
請求項７に記載の発明によれば、ボタン電池の収容をスムーズに行える。
【００６８】
請求項８に記載の発明によれば、ボタン電池を電池収容部に安定して収容することができる。
【００６９】
請求項９に記載の発明によれば、簡単な形状で確実に係止することができる係止部が得られる。
【図面の簡単な説明】
【図１】本発明の電池ホルダ用端子を用いて電池ホルダを構成する一例を示す分解斜視図である。
【図２】本発明の電池ホルダ用端子を用いた電池ホルダにボタン電池を装着した状態を示す斜視図である。
【図３】本発明の電池ホルダ用端子を用いた電池ホルダにボタン電池を装着した状態を示す断面図である。
【図４】本発明のプラス端子の一例を示す斜視図である。
【図５】本発明のプラス端子の他の例を示す斜視図である。
【図６】本発明のプラス端子の他の例を示す斜視図である。
【図７】本発明のマイナス端子の一例を示す斜視図である。
【図８】本発明のマイナス端子の他の例を示す斜視図である。
【符号の説明】
１　　電池ホルダ
２　　ボタン電池
５　　プラス端子
６　　マイナス端子
７　　底板
８　　第１周壁
９　　第２周壁
１０　電池収容部
３０　金属片
３１　取付部
３２　係止部
３３　弾性端子部
３４　接触端子部
３７　第１係止片
３８　第２係止片
３９　接触部
４０　金属片
４１　取付部
４２　係止部
４３　接触端子部
４６　スリット
４７　接触端子片
４８　第１係止片
４９　第２係止片[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a battery holder terminal used for a battery holder that houses a button battery.
[0002]
[Prior art]
The button battery is used to back up a memory on a wiring board of a PC (personal computer), a game machine, an AV device, or the like. The button battery is removably housed in a battery holder fixed to the wiring board.
Various types of battery holders have already been proposed. For example, a holder body (substantially bottomed) that can accommodate a disc-shaped button battery inside by providing a cylindrical peripheral wall at the periphery of a substantially circular bottom plate is provided. (A cylindrical holder body) and two terminals attached to the holder body. When the button battery is fitted and accommodated in the holder body, the button battery is housed so as not to be easily pulled out of the holder body by a removal prevention portion provided on the peripheral wall, and the plus terminal is connected to the positive electrode of the button battery. The negative terminal is electrically connected to the positive electrode of the button battery.
[0003]
By the way, a button battery is used for a mass-produced wiring board such as a PC, for example, so that a battery holder for accommodating the button battery is also mass-produced. For this reason, in order to reduce the cost and weight of the wiring board in recent years, it is desired to reduce the cost and weight of the battery holder as much as possible. Therefore, it is necessary to produce the terminals used for the battery holder at the lowest possible cost. Is desired.
[0004]
[Problems to be solved by the invention]
The present invention has been made in view of such circumstances, and an object of the present invention is to provide a battery holder terminal that can reduce production costs as much as possible.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, the battery holder terminal of the present invention has a positive terminal electrically connected to a positive electrode of a button battery housed in a battery housing part including a bottom plate and a peripheral wall provided on the bottom plate. In a battery holder terminal in which a minus terminal electrically contacts a minus pole, the plus terminal and / or the minus terminal are formed by bending an elongated substantially rectangular metal piece so as to be attached to the peripheral wall. And a locking portion provided on a part of a metal piece forming the mounting portion and engaging with the peripheral wall to lock the mounting portion, and bending the metal piece closer to the battery housing portion than the mounting portion. And a contact terminal portion that electrically contacts the electrode of the button battery housed in the battery housing portion.
[0006]
With this configuration, since the plus terminal and / or the minus terminal are formed by bending an elongated substantially rectangular metal piece, a large number of plus terminals and / or minus terminals are manufactured from one metal plate. In this case, since there is little wasted part, it is particularly suitable for mass production, and the production cost can be reduced as much as possible.
[0007]
The button battery is accommodated in the battery accommodating portion such that the negative pole is on the bottom plate side, and the peripheral wall includes two opposed peripheral walls to which the plus terminal and the minus terminal are individually attached, respectively. It is preferable that an elastic terminal portion is provided between the contact portion and the contact terminal portion, the elastic terminal portion being elastically deformed by the button battery housed in the battery housing portion and pressing the button battery against the other peripheral wall by its urging force ( Claim 2).
[0008]
As described above, the button battery accommodated in the battery accommodating portion is pressed against the other peripheral wall by the urging force of the elastic terminal portion of the positive terminal, so that the positive terminal accommodates (locks) the button battery in the battery accommodating portion. Therefore, the number of members for locking the button battery can be reduced, and the overall cost of the battery holder can be reduced.
[0009]
The mounting portion of the plus terminal is formed by being bent substantially in a U shape, the elastic terminal portion is formed by being bent substantially in a U shape, and the contact terminal portion is housed in the battery housing portion. It is preferable that the contact piece be in contact with the circular surface on the positive pole side of the battery in order to prevent the button battery from being detached.
Accordingly, since the shape of the positive terminal is not complicated but simple, it can be easily manufactured and cost can be reduced.
[0010]
It is preferable that contact portions protruding toward the button battery are respectively provided on both sides or near both sides of a place where the elastic terminal portion comes into contact with the button battery (claim 4).
Thereby, the button battery contacts two places of the two contact portions near or on both sides of the terminal, so that lateral displacement of the button battery can be prevented as compared with a case where the button battery contacts one place of the terminal.
[0011]
It is preferable that the tip of the contact piece bend or bend to the side opposite to the positive electrode side circular surface of the button battery (Claim 5).
Thereby, for example, when the button battery is brought into contact with the contact terminal portion to be accommodated in the battery accommodating portion, if the distal end portion of the contact piece is plate-shaped, the contact piece may be caught on the distal end portion, but may be bent or bent. By doing so, the button batteries can be smoothly accommodated without worry. Further, when removing the button battery housed in the battery housing portion, the button battery can be easily taken out as compared with the case where the flat contact piece is in contact with the circular surface of the button battery.
[0012]
The button battery is accommodated in the battery accommodating portion such that the negative pole is on the bottom plate side, and the peripheral wall includes two opposing peripheral walls to which the plus terminal and the minus terminal are individually attached, respectively. The part is bent substantially in a U-shape, and when the contact terminal part is attached to the one peripheral wall, the negative electrode side circular surface of the button battery accommodated in the battery accommodating part when the attaching part is attached to one of the peripheral walls. It is preferable to bend and incline to the bottom plate from the vicinity of the bottom plate so as to contact the bottom plate.
Accordingly, the negative terminal is not complicated and has a simple shape, so that it can be easily manufactured and cost can be reduced.
[0013]
It is preferable that the tip of the contact terminal bends or bends to the opposite side of the negative electrode side circular surface of the button battery (claim 7).
Thereby, when the button battery is housed in the battery housing portion, if the tip portion of the contact terminal portion is plate-shaped, it may be caught on the tip portion, but by bending or bending, there is no worry about the Button batteries can be stored smoothly.
[0014]
At least a portion of the contact terminal portion that contacts the negative electrode-side circular surface of the button battery is divided into two or more contact terminal pieces by a slit extending from the tip portion along the longitudinal direction of the terminal. Preferred (claim 8).
As a result, the button battery is less likely to rattle when two or more contact terminal pieces come into contact with each other than when one contact terminal portion contacts the circular surface on the minus pole side of the button battery. Can be stably accommodated in the section.
[0015]
It is preferable that the locking portion has a locking piece formed by a U-shaped notch extending along the longitudinal direction of the terminal positioned in the mounting portion (claim 9).
As a result, a locking portion that can be securely locked with a simple shape is obtained.
[0016]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
1 to 8 are views showing a battery holder terminal of the present invention. 1 to 3, reference numeral 1 denotes a battery holder that accommodates a disc-shaped button battery 2.
The button battery 2 is a commercially available disc-shaped battery. One circular surface of the button battery 2 is formed as a positive electrode, and the other surface is formed as a negative electrode. The circular surface of the plus pole has a larger diameter than the circular surface of the minus pole, and a step 3 separating the plus and minus poles is provided at the periphery of the minus pole. That is, the button battery 2 is formed as a positive electrode by connecting the circular surface on the negative electrode side and the peripheral surface (side surface).
[0017]
The battery holder 1 is attached to the holder main body 4 for accommodating the button battery 2, a plus terminal 5 attached to the holder main body 4 and electrically connected to a plus pole of the contained button battery 2, and attached to the holder main body 4. And a negative terminal 6 electrically connected to the negative pole of the accommodated button battery 2.
[0018]
The holder body 4 is integrally formed of a bottom plate 7 and two peripheral walls 8, 9 provided at two opposing positions of the bottom plate 7 with an insulating material, for example, a synthetic resin, and is formed by the bottom plate 7 and the peripheral walls 8, 9. The battery housing 10 is formed.
[0019]
The bottom plate 7 may be formed in any shape as long as there is at least a long portion longer than the diameter of the button battery 2. For example, the bottom plate 7 is formed in a circular flat plate shape having a diameter larger than the diameter of the button battery 2.
Notches 11 are provided in the vicinity of one of the peripheral walls 8 and 9 of the bottom plate 7 or in the vicinity of both peripheral walls 9, in the illustrated example, in the vicinity of both peripheral walls 8 and 9. The shape of the notch 11 is not particularly limited, and may be substantially rectangular as shown, or may be formed in any shape such as a circle, a rectangle, and a polygon.
It is preferable that the thickness between the cutouts 11, 11 of the bottom plate 7 is formed smaller than the thickness of the other bottom plates 7.
[0020]
The two peripheral walls 8 and 9 are provided integrally at two opposing peripheral portions of the circular bottom plate 7 along a direction substantially orthogonal to the plane. These peripheral walls 8 and 9 are each formed in an arc shape whose outer periphery is substantially the same diameter as the periphery of the bottom plate 7 and whose inner periphery is smaller in diameter than the outer diameter of the button battery 2 (the circular surface on the positive pole side). . One of these peripheral walls is formed as a first peripheral wall 8 whose peripheral length is relatively long, and the other is formed as a second peripheral wall 9 whose peripheral length is shorter than the first peripheral wall 8. The first peripheral wall 8 and the second peripheral wall 9 have substantially the same thickness and are arranged on a circumference around the same axis. The heights of the first and second peripheral walls 8 and 9 are formed slightly higher than the thickness of the button battery 2 from the bottom plate 7.
[0021]
In addition, the button battery 2 is inserted into the battery accommodating portion 10 in a reverse direction (a direction in which the plus surface is on the bottom plate 7 side) at a peripheral portion of the bottom plate 7 provided with the first peripheral wall 8 and the second peripheral wall 9. Are provided integrally with each other.
The step part 12 prevents the button battery 2 from being inserted in the reverse direction by using the step 3 of the peripheral part of the negative surface, and fits into the shape of the peripheral part of the circular surface of the negative pole of the button battery 2. It is formed as follows. That is, the step portion 12 is formed in a planar shape when the peripheral edge of the circular surface of the button battery 2 has a positive pole, and the step portion 3 is provided when the peripheral portion has a negative pole. It is formed so that.
[0022]
A first terminal mounting portion 13 is provided integrally at a substantially central portion of the first peripheral wall 8 in the circumferential direction, and a second terminal mounting portion 14 is provided at a substantially central portion of the second peripheral wall 9 in the circumferential direction. Are provided integrally.
The first terminal mounting portion 13 includes a pair of legs 15, 16 and a terminal mounting portion 17 for connecting the legs 15, 16 and mounting the plus terminal 5.
[0023]
The pair of legs 15, 16 are provided at two locations on the peripheral edge of the bottom plate 7, which are circumferentially separated from the center of the first peripheral wall 8 by a predetermined distance, respectively, along the opposing directions of the first and second peripheral walls 8, 9. Are formed in plate shapes extending substantially in parallel. A terminal mounting portion 17 extending in a direction substantially perpendicular to the radial direction is formed slightly radially outward from the peripheral edge of the bottom plate 9 on the inner surfaces of the legs 8 and 9 facing each other. It is provided in.
[0024]
The terminal mounting portion 17 is formed in a substantially rectangular flat plate shape, and the surface (first surface) 17a on the battery housing portion 10 side is located radially outward from the circumference of the bottom plate 7.
A surface (lower surface) of the terminal mounting portion 17 that is substantially parallel to the bottom plate 7 on the bottom plate 7 side is located at a position near the back surface of the bottom plate 7, and a surface (upper surface) facing the lower surface is located on the bottom plate 7 side. It is located at a position substantially apart from the end by the thickness of the button battery 2 (a position separated by a predetermined distance from the extended end of the first peripheral wall 8 (the end opposite to the bottom plate 7) to the bottom plate 7 side). I have.
[0025]
The first surface 17a of the terminal mounting portion 17 is provided with a concave groove 18 having a substantially concave cross section, which is an engaging portion, from the vicinity of the upper end to the lower end.
On the opposite surface (second surface) 17b of the terminal mounting portion 17, an inclined surface 19 is provided which is gradually inclined from near the lower end to the upper end.
[0026]
Similarly to the first terminal mounting portion 13, the second terminal mounting portion 14 includes a pair of legs 20 and 21 and a terminal mounting portion 22 which connects the legs 20 and 21 and to which the minus terminal 6 is mounted. Become.
The pair of leg portions 20 and 21 are provided at two locations on the peripheral edge of the bottom plate 7, which are circumferentially separated from the central portion of the second peripheral wall 9 by a predetermined distance, along the opposing directions of the first and second peripheral walls 8 and 9. Are formed in plate shapes extending substantially in parallel. A terminal mounting part 22 extending along a direction substantially perpendicular to the radial direction is formed slightly radially outward from the peripheral edge of the bottom plate 7 on the inner surfaces of the legs 20 and 21 facing each other. It is provided in.
[0027]
The terminal mounting portion 22 is formed in a substantially rectangular flat plate shape, and the surface (first surface) 22a on the battery housing portion 10 side is located radially outward from the circumference of the outer periphery of the bottom plate 7.
A surface (lower surface) of the terminal mounting portion 22 that is substantially parallel to the bottom plate 7 on the bottom plate 7 side is located at a position near the back surface of the bottom plate 7, and a surface (upper surface) facing the lower surface is on the bottom plate 7 side. It is located at a position substantially apart from the end by the thickness of the button battery 2 (a position separated by a predetermined distance from the extended end of the second peripheral wall 9 (end opposite to the bottom plate 7) to the bottom plate 7 side). I have.
On both surfaces 22a and 22b of the terminal mounting portion 22, there are provided inclined surfaces 23 and 24, respectively, which are gradually inclined from near the lower end to the upper end.
[0028]
Projecting pieces 25, 25 extending substantially parallel to the bottom plate 7 along the direction of the first peripheral wall are provided at the extending end of the second peripheral wall 9 connected to the second terminal mounting portion 14. The protruding pieces 25, 25 come into contact with the positive electrode-side circular surface of the button battery 2 to prevent the button battery 2 housed in the battery housing portion 10 from being detached. The protruding ends of the protruding pieces 25, 25 are arranged at positions where the length between the protruding end and the opposing first peripheral wall 8 is slightly longer than the diameter of the button battery 2 (positive pole side circular surface). Has been established.
[0029]
As shown in FIGS. 1 and 4, the positive terminal 5 is formed by bending an elongated, substantially rectangular metal piece 30 to be attached to the terminal attaching portion 17 of the first terminal attaching portion 13. A locking portion 32 provided on a part of the metal piece 30 forming the mounting portion 31 and engaging with the terminal mounting portion 17 of the first terminal mounting portion 13 to lock the mounting portion 31; When the button battery 2 is contacted obliquely from above the second peripheral wall 9, the button battery 2 at a location facing the contact location is elastically deformed so as to be housed in the battery housing 10 beyond the projecting pieces 25, 25. A contact terminal that is in contact with the elastic terminal portion 33 and a circular surface on the positive pole side of the button battery 2 housed in the battery housing portion 10 by bending the metal piece 30 on the battery housing portion 10 side from the elastic terminal portion 33. And a unit 34.
[0030]
The attachment portion 31 may be formed in any shape as long as it can be detachably attached to the terminal attachment portion 17 of the first terminal attachment portion 13, for example, a U shape, a U shape, an Ω shape, and the like. It is preferable to form a U-shape along the shape of the terminal mounting portion 17.
The elastic terminal portion 33 may be formed in any shape as long as the button battery 2 can be accommodated in the battery accommodating portion 10 by being elastically deformed, for example, a U-shape, a U-shape, an Ω-shape. Etc., and preferably a U-shape.
The attachment portion 31 and the elastic terminal portion 33 may be provided with an interval therebetween, but are preferably provided continuously as shown.
[0031]
That is, the positive terminal 5 specifically, for example, bends the metal piece 30 along a direction substantially orthogonal to the fixing portion 35 fixed to the wiring board by soldering. The fixing portion 35 and the first bent portion 36a are separated from each other at a position slightly longer than the longitudinal length (the length between the upper surface and the lower surface) of the terminal mounting portion 17 of the first terminal mounting portion 13 from the first bent portion 36a. Is bent along the direction substantially perpendicular to the opposite side, and further, is folded along the direction substantially perpendicular to the second bent portion 36b so as to be folded at a position slightly longer than the thickness of the terminal mounting portion 17 from the second bent portion 36b. That is, the metal piece 30 is bent substantially in a U shape from the fixing portion 35, and the bent portion is formed as the mounting portion 31 that is mounted to the terminal mounting portion 17 of the first terminal mounting portion 13. .
[0032]
Further, the metal piece 30 is bent substantially U-shaped from the third bent portion. The U-shaped bottom is located near the fixing portion 35, and the length between the bottom and the tip is longer than the length from the base to the third bent portion 36c. . This position is a position slightly higher than the circular surface of the button battery 2 on the positive pole side when the plus terminal 5 is attached to the terminal attaching portion 17 of the first terminal attaching portion 13 and the button battery 2 is accommodated in the battery accommodating portion 10. It is. The portion bent in the U-shape is the elastic terminal portion 33, and is configured as a kind of leaf spring.
[0033]
Further, the metal piece 30 is bent from the U-shaped tip portion to the side opposite to the U-shaped portion so as to be inclined from the surface parallel to the fixing portion 35 toward the elastic terminal portion 33, so that the button battery 2 It is formed as a contact piece 34 which is a contact terminal portion that comes into contact with the circular surface on the positive pole side, whereby the positive terminal 5 is formed.
[0034]
In addition, when the attaching portion 31 is attached to the terminal attaching portion 17 of the first terminal attaching portion 13 when the attaching portion 31 can be engaged with the terminal attaching portion 17 to fix the plus terminal 5, Any part of the metal piece 30 (terminal 5) may be processed in any manner. For example, a U-shaped notch extending along the longitudinal direction is provided at the center of the metal piece 30 and formed by this notch. It is preferable to use the set portion as a locking piece.
[0035]
Specifically, for example, a notch extending in a U-shape along the longitudinal direction of the metal piece 30 and the direction of the second bent part 39b is provided at the center of the first bent part 36a of the metal piece 30. . By locating the portion formed by this notch on the same plane as the fixing portion 35, a U-shaped first locking piece 37 is formed. When the positive terminal 5 is attached to the terminal mounting portion 17 of the first terminal mounting portion 13, the first locking piece 37 comes into surface contact with (engages with) the lower surface of the terminal mounting portion 17 to lock the positive terminal 5. It is supposed to be.
[0036]
Further, a substantially U-shaped portion is formed in a substantially central portion near the base end of the metal piece 30 on the base end side of the elastic terminal portion 33 serving as the two of the mounting portion 31 and the elastic terminal portion 33 toward the base end direction. A notch extending in a shape is provided. The second locking piece 38 is formed by bending the portion formed by the cut into the mounting portion 31 so as to be inclined at preferably 25 to 35 °, particularly preferably 30 °. When the positive terminal 5 is attached to the terminal mounting portion 17 of the first terminal mounting portion 13, the second locking piece 38 engages with the concave groove 18 of the first surface 17 a of the terminal mounting portion 17 to engage the positive terminal 5. Are locked.
[0037]
Further, contact portions 39 protruding to the opposite side from the inside of the elastic terminal portion 33 are provided at portions where the peripheral surface of the button battery 2 of the elastic terminal portion 33 comes into contact, that is, at both sides or near both side portions of the metal piece 30 on the tip end side. , 39 are preferably provided. The contact portion 39 may be formed in any manner, and the shape thereof is not particularly limited. For example, when the contact portion 39 is provided on both sides as shown in the drawing, the contact portion 39 may project in a semicircular shape. In the case where the contact portions 39 are provided in the vicinity of both side portions, as shown in FIG. 6, a flat portion 51 may be provided, and the contact portions 39 may be formed by circular protrusions near both side portions of the flat portion 51. Good.
[0038]
The fixing portion 35 of the plus terminal 5 is formed along a direction substantially perpendicular to the mounting portion so as to be fixed to the wiring board by soldering. However, when the fixing portion 35 is inserted into a groove or a through hole of the wiring board. May be formed via a U-shaped connecting portion 50 such that the fixing portion 35 extends substantially parallel to the surface of the mounting portion where the fixing portion 35 is continuously provided, as shown in FIG. .
The contact piece 34 may be formed in a flat plate shape, but the tip of the contact piece 34 may be curved or bent to the side opposite to the positive electrode side circular surface of the button battery 2. For example, as shown in FIG. 6, it is preferable to bend the vicinity of the tip end into, for example, an R on the side opposite to the bending direction of the contact piece.
[0039]
As shown in FIGS. 1 and 7, the negative terminal 6 is formed by bending an elongated, substantially rectangular metal piece 40, for example, like the positive terminal 5. A mounting portion 41 formed by being bent to be mounted on the portion 22 and a part of the metal piece 40 forming the mounting portion 41 are engaged with the terminal mounting portion 22 of the second terminal mounting portion 14 for mounting. A locking portion 42 for locking the portion 41 and a circular surface on the minus pole side of the button battery 2 housed in the battery housing portion 10 by bending the metal piece 40 on the battery housing portion 10 side with respect to the mounting portion 41 to be electrically connected. The contact terminal 43 is in contact with the contact terminal 43.
The attachment portion 41 may be formed in any shape as long as it can be detachably attached to the terminal attachment portion 22 of the second terminal attachment portion 14, for example, a U shape, a U shape, an Ω shape, and the like. And preferably in a U-shape along the shape of the terminal mounting portion.
[0040]
Specifically, the negative terminal 6, for example, bends the metal piece 40 along a direction substantially orthogonal to the fixing portion 44 fixed to the wiring board by soldering. The fixing portion 44 and the first bent portion 45a are separated from the fixing portion 44 at a position slightly longer than the longitudinal length (the length between the upper surface and the lower surface) of the terminal mounting portion 22 of the second end mounting portion 14 from the first bent portion 45a. Is bent along the direction substantially perpendicular to the opposite side, and further, is folded along the direction substantially perpendicular to the second bent portion 45b so as to be folded at a position slightly longer than the thickness of the terminal mounting portion 22 from the second bent portion 45b. That is, the metal piece 40 is bent substantially in a U-shape from the fixing portion 44, and the portion bent in the U-shape is formed as a mounting portion 41 which is mounted to the terminal mounting portion 22 of the second terminal mounting portion 14. .
[0041]
Further, the metal piece 40 is separated from the third bent portion 45c by a length slightly longer than the longitudinal length (the length between the upper surface and the lower surface) of the terminal mounting portion 22 of the second terminal mounting portion 14. To bend along a direction substantially orthogonal to the side opposite to the fixing portion 44 side. Further, it is bent so as to incline toward the mounting portion 41 at a position separated by a predetermined distance from the fourth bent portion 45d, and is formed as a contact terminal portion 43 that comes into contact with the negative pole circular surface of the button battery 2, whereby , A negative terminal 6 is formed.
The inclination angle of the contact terminal portion 43 is arbitrarily determined as long as the contact terminal portion 43 surely contacts the circular surface of the negative pole of the button battery 2, and is preferably, for example, 15 ° to 20 °, and particularly preferably 18 °. .
[0042]
The tip portion of the contact terminal portion 43 may be curved or bent in a direction opposite to the tilt direction. For example, it is preferable to bend the vicinity of the distal end into, for example, an R on the side opposite to the bending direction of the contact piece.
In addition, a slit 46 is provided at a substantially central portion in the width direction of the contact terminal portion 43 from the vicinity of the base portion (inclined bent portion 45e) to the front end portion to form two contact terminal pieces 47, 47. It is preferable that the two contact terminal pieces 47 contact the circular surface of the negative pole of the button battery 2.
[0043]
In addition, when the attaching portion 41 is attached to the terminal attaching portion 22 of the second terminal attaching portion 14 when the attaching portion 41 can be engaged with the terminal attaching portion 22 to fix the plus terminal 5, Any part of the metal piece 40 (terminal 6) may be processed in any manner. For example, a U-shaped notch extending along the longitudinal direction is provided at the center of the metal piece, and the metal piece 40 is formed by this notch. It is preferable to use the bent portion as a locking piece.
[0044]
Specifically, for example, a notch extending in a U-shape along the longitudinal direction of the metal piece 40 and the direction of the second bent part 45b is provided at the center of the first bent part 45a of the metal piece 40. . By locating the portion formed by this notch in the same plane as the fixing portion 44, a U-shaped first locking piece 48 is formed.
In addition, a notch extending in a U-shape toward the third bent portion 45c is provided at the center of the fourth bent portion 45d of the metal piece 40. By extending the portion formed by this notch in the same plane as the fixing portion 44, the U-shaped second locking piece 49 is formed. When the minus terminal 6 is attached to the terminal attaching portion 22 of the second terminal attaching portion 14, the first and second locking pieces 48 and 49 come into surface contact (engagement) with the lower surface of the terminal attaching portion 22, respectively. The minus terminal 6 is locked.
[0045]
The contact terminal portion 43 is formed to be inclined at a position separated by a predetermined distance from the fourth bent portion 45d, and is formed to be bent at the fourth bent portion 45d so as to be inclined at, for example, 15 ° to 20 °. You may do so.
The fixing portion of the minus terminal 6 is formed along a direction substantially perpendicular to the mounting portion 41 so as to be fixed to the wiring board by soldering. As shown in FIG. 8, the fixing portion 44 may be formed via a U-shaped connecting portion 50 so as to extend substantially parallel to the surface of the mounting portion to which the fixing portion 44 is continuously provided. Good.
[0046]
Now, in order to obtain the battery holder 1 using the plus terminal 5 and the minus terminal 6, as shown in FIG. 1, the plus terminal 5 is attached to the first terminal mounting portion 13 of the first peripheral wall 8 of the holder body 4. At the same time, the minus terminal 6 is attached to the second terminal mounting portion 14 of the second peripheral wall 9.
Specifically, the positive terminal 5 is mounted by opening the substantially U-shaped mounting portion 31 of the positive terminal 5 and the terminal mounting of the first terminal mounting portion 13 so that the fixing portion 35 is located outside the holder body 4. The mounting portion 31 of the plus terminal 5 is moved so as to cover the terminal mounting portion 17 by contacting the upper end portion of the portion 17, and between the second bent portion 36 b and the third bent portion 36 c of the mounting portion 31. When the terminal 5 contacts the upper end of the terminal mounting portion 17, the first locking piece 37 makes surface contact (engagement) with the lower surface of the terminal mounting portion 17, and the second locking piece 38 The positive terminal 5 is engaged with the concave groove 18 of the first surface 17a, and is locked to the holder body 4.
[0047]
At this time, since the inclined surface 19 is provided on the second surface 17 b of the terminal mounting portion 17, even if the first locking piece 37 extends into the mounting portion 31, the positive terminal 5 can easily be connected to the second terminal 17. It can be attached to the terminal attachment part 17 of the one terminal attachment part 13.
Further, the first and second locking pieces 37 and 38, which are the locking portions 32, are formed by U-shaped cuts extending along the longitudinal direction of the terminal 5, so that they are reliably formed in a simple shape. The positive terminal 5 can be locked.
[0048]
Specifically, the minus terminal 6 is attached by opening the substantially U-shaped attachment portion 41 of the minus terminal 6 and by attaching the terminal to the second terminal attachment portion 14 such that the fixing portion 44 is located outside the holder body 4. The mounting portion 41 is moved so as to cover the terminal mounting portion 22 by contacting the upper end of the portion 22 and the terminal 6 between the second bent portion 45b and the third bent portion 45c of the mounting portion 41 is moved. When contacting the upper end of the terminal mounting portion 22, the first and second locking pieces 48, 49 are in surface contact (engagement) with the lower surface of the terminal mounting portion 22, respectively, and the minus terminal 6 is locked by the holder body 4. You.
[0049]
At this time, since the inclined surfaces 23 and 24 are respectively provided on both surfaces of the terminal mounting portion 22, even if the first and second locking pieces 48 and 49 extend in the mounting portion 41 respectively, it is easy. The negative terminal 6 can be attached to the terminal attachment portion 22 of the second terminal attachment portion 14.
Further, the first and second locking pieces 46 and 49, which are the locking portions 42, are formed by U-shaped cuts extending along the longitudinal direction of the terminal 6, so that they are reliably formed in a simple shape. The minus terminal 6 can be locked.
[0050]
In order to store the button battery 2 in the battery holder 1 thus obtained, the button battery 2 is arranged such that the circular surface on the minus pole side is on the bottom plate 7 and the peripheral surface of the button battery 2 is It is brought into contact with the elastic terminal portion 33. At this time, the button battery 2 on the peripheral surface opposite to the peripheral surface in contact with the elastic terminal portion 33 is located on the second peripheral wall 9. That is, the button battery 2 is in a state inclined with respect to the battery accommodating portion 10 (the bottom plate 7).
[0051]
When the portion on the second peripheral wall 9 of the button battery 2 is pushed (slid) toward the plus terminal 5, the elastic terminal portion 33 in contact with the peripheral surface of the button battery 2 resists the urging force due to the pressing force. As a result, the button battery 2 moves (slids) in the direction of the plus terminal 5, and the button battery 2 at a location opposite to the contact location passes over the protruding pieces 25, 25 of the second peripheral wall 9, so that the button battery 2 The battery 2 enters the battery housing 10. As shown in FIGS. 2 and 3, the button battery 2 that has entered the battery accommodating portion 10 is pressed and moved in the direction of the second peripheral wall 9 by the urging force (restoring force) of the elastic terminal portion 33 and moves to the second peripheral wall. 9, and the protruding pieces 25, 25 come into contact with the circular surface on the positive pole side of the button battery 2. Also, since the contact piece 34 of the plus terminal 5 is in contact with the circular surface facing the place where the projecting pieces 25, 25 are in contact, the button battery 2 is fitted into the battery It is housed in a state where it is prevented from coming off.
[0052]
Thus, the elastic terminal portion 33 of the plus terminal 5 comes into contact with the peripheral surface of the button battery 2 housed in the battery housing portion 10 and the contact piece 34 comes into contact with the circular surface on the plus pole side. And the plus terminal 5 is electrically connected.
When the button battery 2 enters the battery accommodating portion 10, the contact terminal portion 33 of the negative terminal 6 is inclined from the vicinity of the bottom plate 7 into the battery accommodating portion 10, so that the circular surface on the negative pole side has a contact terminal. Since the contact is made in a state where the portion 33 is pressed, the minus pole of the button battery 2 and the minus terminal 6 are electrically connected.
[0053]
Therefore, since the terminal for a battery holder of the present invention functions sufficiently as a terminal, both the plus terminal 5 and the minus terminal 6 are formed by bending the elongated, substantially rectangular metal pieces 30, 40. When manufacturing a large number of plus terminals 5 and / or minus terminals 6 from one metal plate, there is little wasted part. Therefore, the plus terminal 5 and the minus terminal 6 are particularly suitable for mass production, so that production costs can be reduced as much as possible.
[0054]
In addition, since the button battery 2 is housed in the battery housing portion 10 by the urging force of the elastic terminal portion 33 of the plus terminal 5, the plus terminal 5 is required to house (lock) the button battery 2 in the battery housing portion 10. Since this contributes, the number of members for locking the button battery 2 can be reduced, leading to overall cost reduction and weight reduction of the battery holder 1.
[0055]
The mounting portion 31 of the plus terminal 5 is bent substantially in a U-shape, and the elastic terminal portion 33 is connected to the mounting portion 31 and bent substantially in a U-shape, and Since the contact terminal portion is the contact piece 34 that contacts the positive electrode-side circular surface of the button battery 2, the positive terminal 5 has a simple and not complicated shape, and can be easily manufactured.
[0056]
In addition, contact portions 39, 39 protruding toward the button battery 2 are provided on both sides or near both sides of the portion of the elastic terminal portion 33 that contacts the button battery 2, respectively. Since the two contact portions 39 and 39 are in contact with each other, the lateral displacement of the button battery 2 can be prevented as compared with the case where one of the terminals is contacted.
[0057]
When the tip of the contact piece 34 is bent or bent to the side opposite to the positive electrode side circular surface of the button battery 2, when the button battery 2 is brought into contact with the contact piece 34 to be accommodated in the battery accommodating section 10, If the distal end of the contact piece 34 is plate-shaped, the contact piece 34 may be caught on the distal end, but the button battery 2 can be smoothly housed without any fear. When the button battery 2 housed in the battery housing 10 is removed, the button battery 2 can be easily taken out as compared with the case where the flat contact piece 34 is in contact with the circular surface of the button battery 2. .
[0058]
The attachment portion 41 of the minus terminal 6 is formed by being bent substantially in a U-shape, and the contact terminal portion 43 is accommodated in the battery accommodation portion 10 when the attachment portion 41 is attached to the second peripheral wall 9. Since the negative terminal 6 is formed to be inclined from the vicinity of the bottom plate to be in contact with the circular surface on the minus pole side of the button cell 2 and to be inclined with respect to the bottom plate 7, the minus terminal 6 has a simple shape and is not complicated. , Can be easily manufactured, and the cost can be reduced.
[0059]
When the button terminal 2 is accommodated in the battery accommodating portion 10, the tip of the contact terminal portion 43 of the minus terminal 6 is bent or bent to the opposite side to the negative pole side circular surface of the button battery 2. If the distal end of the terminal portion 43 is plate-shaped, the terminal portion 43 may be caught on the distal end, but the button battery 2 can be smoothly accommodated without such a concern.
[0060]
When the contact terminal portion 43 of the minus terminal 6 includes two or more (two in the illustrated example) contact terminal pieces 47, 47, one contact terminal portion comes into contact with the minus pole side circular surface of the button battery 2. Since the button battery 2 is less likely to rattle, the button battery 2 can be stably housed in the battery housing portion 10.
[0061]
【The invention's effect】
In short, according to the first aspect of the invention, a terminal for a battery holder that can reduce the production cost as much as possible is obtained.
[0062]
According to the second aspect of the present invention, the overall cost of the battery holder can be reduced.
[0063]
According to the third aspect of the present invention, since the shape of the positive terminal is not complicated but simple, it can be easily manufactured and cost can be reduced.
[0064]
According to the fourth aspect of the present invention, the button battery contacts the two contact portions near both sides of the terminal or at the two contact portions near the both sides. Lateral displacement can be prevented.
[0065]
According to the fifth aspect of the present invention, the button battery can be accommodated smoothly and the button battery can be easily taken out.
[0066]
According to the sixth aspect of the present invention, since the shape is not complicated but simple, it can be easily manufactured and cost can be reduced.
[0067]
According to the seventh aspect of the present invention, the button battery can be accommodated smoothly.
[0068]
According to the invention described in claim 8, the button battery can be stably accommodated in the battery accommodating portion.
[0069]
According to the ninth aspect of the present invention, a locking portion that can be securely locked with a simple shape can be obtained.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view showing an example in which a battery holder is configured using the battery holder terminal of the present invention.
FIG. 2 is a perspective view showing a state in which a button battery is mounted on a battery holder using the battery holder terminal of the present invention.
FIG. 3 is a cross-sectional view showing a state in which a button battery is mounted on a battery holder using the battery holder terminal of the present invention.
FIG. 4 is a perspective view showing an example of a plus terminal of the present invention.
FIG. 5 is a perspective view showing another example of the plus terminal of the present invention.
FIG. 6 is a perspective view showing another example of the plus terminal of the present invention.
FIG. 7 is a perspective view showing an example of a minus terminal of the present invention.
FIG. 8 is a perspective view showing another example of the minus terminal of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Battery holder 2 Button battery 5 Positive terminal 6 Negative terminal 7 Bottom plate 8 First peripheral wall 9 Second peripheral wall 10 Battery housing part 30 Metal piece 31 Mounting part 32 Locking part 33 Elastic terminal part 34 Contact terminal part 37 First locking piece 38 second locking piece 39 contact part 40 metal piece 41 mounting part 42 locking part 43 contact terminal part 46 slit 47 contact terminal piece 48 first locking piece 49 second locking piece

Claims

In a battery holder terminal in which a positive terminal electrically contacts a positive electrode of a button battery housed in a battery housing portion including a bottom plate and a peripheral wall provided on the bottom plate, and a negative terminal electrically contacts a negative electrode. ,
The plus terminal and / or the minus terminal are provided on a mounting part formed by bending an elongated substantially rectangular metal piece so as to be mounted on the peripheral wall, and on a part of the metal piece forming the mounting part, A locking portion that engages with the peripheral wall to lock the mounting portion; and a contact terminal that bends a metal piece on the battery housing portion side from the mounting portion to electrically contact the electrode of the button battery housed in the battery housing portion. And a terminal for a battery holder.

The button battery is accommodated in the battery accommodating portion such that the negative pole is on the bottom plate side, and the peripheral wall includes two opposing peripheral walls on which the plus terminal and the minus terminal are separately attached, respectively. An elastic terminal portion is provided between the contact portion and the contact terminal portion, the elastic terminal portion being elastically deformed by the button battery housed in the battery housing portion and pressing the button battery against the other peripheral wall by the urging force. The terminal for a battery holder described in the above.

The mounting portion of the plus terminal is formed by being bent substantially in a U shape, the elastic terminal portion is formed by being bent substantially in a U shape, and the contact terminal portion is housed in the battery housing portion. The terminal for a battery holder according to claim 2, wherein the contact piece is a contact piece that contacts a circular surface on the positive pole side of the battery to prevent detachment of the button battery.

4. The battery holder terminal according to claim 2, wherein contact portions protruding toward the button battery are provided on both sides or near both sides of a location where the elastic terminal portion contacts the button battery. 5.

5. The battery holder terminal according to claim 3, wherein a tip end of the contact piece is curved or bent to a side opposite to a positive-side circular surface of the button battery. 6.

The button battery is accommodated in the battery accommodating portion such that the negative pole is on the bottom plate side, and the peripheral wall includes two opposed peripheral walls on which the positive terminal and the negative terminal are separately mounted, respectively. The portion is formed by bending substantially in a U-shape, and when the contact terminal portion is attached to one of the peripheral walls, the negative electrode side circular surface of the button battery housed in the battery housing portion. The battery holder terminal according to any one of claims 1 to 5, wherein the battery holder terminal is formed so as to be bent from the vicinity of the bottom plate so as to be in contact with the bottom plate.

7. The battery holder terminal according to claim 6, wherein a tip portion of the contact terminal portion is curved or bent to a side opposite to a negative-polarity-side circular surface of the button battery.

At least a portion of the contact terminal portion that contacts the negative electrode-side circular surface of the button battery is divided into two or more contact terminal pieces by a slit extending from a tip portion along a longitudinal direction of the terminal. The terminal for a battery holder according to 6 or 7.

9. The mounting portion according to claim 1, wherein the locking portion is configured such that a locking piece formed by a U-shaped notch extending along a longitudinal direction of the terminal is located in the mounting portion. 10. Terminal for battery holder.