JP4198311B2

JP4198311B2 - Battery storage device

Info

Publication number: JP4198311B2
Application number: JP2000334190A
Authority: JP
Inventors: 真治鈴木
Original assignee: Fujifilm Corp
Current assignee: Fujifilm Corp
Priority date: 2000-11-01
Filing date: 2000-11-01
Publication date: 2008-12-17
Anticipated expiration: 2020-11-01
Also published as: JP2002141037A

Description

【０００１】
【発明の属する技術分野】
本発明は、電池を収容して電池の電力を外部に供給する電池収容装置に関する。特に本発明は、外部から衝撃を受けた場合にも、電池との導通を確保できる電池収容装置に関する。
【０００２】
【従来の技術】
従来、この種の装置として、特開平７−８５８５１号公報に開示された電池収容装置が知られいる。上記電池収容装置は、電池のマイナス側電極と接触するマイナス端子と、電池のプラス側電極と接触するプラス端子とを有する。マイナス端子は、バネ性を有し、収容された電池をプラス端子側へ向けて強く押しつける。一方、プラス端子は、一枚の板材から形成されており、バネ性のない固定接点部と、バネ性がありマイナス端子へ向けて撓むことができる可動接点部とを有する。固定接点部は、マイナス端子により押しつけられた電池を不動に支持する接点部である。一方、可動接点部は、電池が何らかの原因により固定接点部から離れるようにマイナス端子へ向けて移動した場合に、電池のプラス側電極に追従してマイナス端子側へ撓み、電池との導通を確保する接点部である。
【０００３】
ところで、上記プラス端子が確実に電池電極との導通を確保するためには、可動接点がマイナス電極側へ撓むことができる距離を長くすることが望まれる。また、可動接点は、マイナス端子が有するバネ性より小さなバネ性を有することが必要である。なぜならば、可動接点のバネ性が大きすぎると、マイナス端子が電池を、プラス端子の固定接点部へ押しつけることができなくなるからである。このために、プラス端子の可動接点としては、バネ性が小さいながらも撓むことができる距離が大きい、しなやかな接点が望まれていた。
【０００４】
【発明が解決しようとする課題】
しかし、特開平７−８５８５１号公報に開示された電池収容装置では、プラス端子を一枚の板材から形成しているために、可動接点に望まれる上記条件を満たすことは困難であった。すなわち、固定接点部のように不動の部位を得るためには、比較的固く、厚い板材を使用しなければならない。しかし、このように固く厚い板材から、同時に、バネ性が小さくしなやかに撓む可動接点を形成することが困難であるという問題があった。
【０００５】
そこで本発明は、上記の課題を解決することのできる電池収容装置を提供することを目的とする。この目的は特許請求の範囲における独立項に記載の特徴の組み合わせにより達成される。また従属項は本発明の更なる有利な具体例を規定する。
【０００６】
【課題を解決するための手段】
上記目的を達成するために、本発明の第１の形態の電池収容装置は、電池を収容し、電池の電力を外部に供給する。電池収容装置は、電池の電極と接触する端子板と、端子板が取り付けられる端子板保持部と、端子板を端子板保持部に固定する固定具と、電池が端子板から離れた場合にも、端子板と電極との間の導通を確保する導電性部材とを備え、導電性部材は、固定具により端子板に固定される固定部と、固定部から電極まで延び、電池の主軸方向に弾性を有する電極接触部とを有することを特徴とする。
【０００７】
電極接触部は、基部を固定部によって支持され、電池の主軸方向に撓むことのできる片持ち梁であってもよい。電極接触部は、電極方向に向けて湾曲した形状を有し、電極接触部の固定部と反対側の端部は、端子板の電極側の表面上にスライド可能に配置されているようにしてもよい。
【０００８】
端子板は、電池の電極に対応する位置に開口部を有し、導電性部材の固定部は、端子板の電極側と反対側に固定されており、導電性部材の電極接触部は、開口部を通って電極側へ伸びることにより、端部を端子板の電極側の表面に配置させているようにしてもよい。
【０００９】
導電性部材の電極接触部は、端子板が電極と接触している部位よりも主軸方向に突出する突出部を有するようにしてもよい。端子板は、電池の電極に対応する位置に開口部を有し、電極接触部の突出部は、開口部を通って電池の電極に向けて突出しているようにしてもよい。固定部は、端子板と端子板保持部との間において固定されるようにしてもよい。
【００１０】
端子板保持部は、固定具が締結される突起部を有し、導電性部材の固定部は、突起部の側面に沿って変形されており、導電性部材は、固定部を突起部の側面に当てた状態で端子板保持部に固定されるようにしてもよい。
【００１１】
端子板保持部は、導電性部材の固定部を、端子板保持部の底面より間隔をおいて支持する支持部を有し、導電性部材の固定部は、端子板と支持部の間において固定されるようにしてもよい。導電性部材は、線材からなるようにしてもよい。
【００１２】
なお上記の発明の概要は、本発明の必要な特徴の全てを列挙したものではなく、これらの特徴群のサブコンビネーションも又発明となりうる。
【００１３】
【発明の実施の形態】
以下、発明の実施の形態を通じて本発明を説明するが、以下の実施形態はクレームにかかる発明を限定するものではなく、又実施形態の中で説明されている特徴の組み合わせの全てが発明の解決手段に必須であるとは限らない。
【００１４】
（第１実施形態）
図１は、第１実施形態の電池収容装置１００の概略断面図である。電池収容装置１００は、電池１２０を収容する収容容器１１０を備える。収容容器１１０の内部の図中上面には、上側固定電極部１１２が備えられている。上側固定電極部１１２は、電池１２０の第１の電極１２２と接触する。上側固定電極部１１２は、例えば、板バネ等から形成されている。
【００１５】
収容容器１１０の図中下端は、端子板保持部１３０が備えられている。端子板保持部１３０は、端子板１４０を保持する。また、端子板保持部１３０は、収容容器１１０の蓋となっている。つまり、端子板保持部１３０は、図中点線で示すように、軸１３２を支点として回転させて開くことができる。端子板保持部１３０を開くことにより、電池１２０の出し入れが可能となる。
【００１６】
端子板保持部１３０に保持されている端子板１４０は、上側固定電極部１１２と共に、電池１２０の第２の電極１２４と接触することにより、電池１２０の電力を不図示の配線を通じて外部へ送電する。端子板１４０は、表面から電池１２０の方向に向けて突出する山形部１４２を有する。端子板１４０は、山形部１４２において、電池１２０の電極１２４と接する。
【００１７】
端子板１４０は、例えば、ネジ、釘、リベット等の固定具１５０により端子板保持部１３０に固定されている。固定具１５０は、端子板保持部１３０の中央付近に設けられた突起部１３４に挿入、固定される。このとき固定具１５０は、端子板１４０を端子板保持部１３０の突起部１３４との間に挟むようにして固定する。
【００１８】
端子板保持部１３０は、上記端子板１４０の他に、導線性部材１６０をも保持している。導電性部材１６０は、端子板保持部１３０と同様に、その一部を固定具１５０と、端子板保持部１３０の突起部１３４との間に挟まれることにより、端子板保持部１３０に固定されている。導電性部材１６０は、外部からの衝撃により電池１２０が端子板１４０から瞬間的に離れた場合に、端子板１４０と電池の電極１２４との間の導通を確保するための部材である。導電性部材１６０は、例えば、導電性のある針金等の金属製の線材からなる。導電性部材１６０は、固定具１５０から作用する力により、端子板１４０と端子板保持部１３０との間に固定される固定部１６４と、固定部１６４から電池の電極１２４まで延びる電極接触部１６２とを有する。
【００１９】
電極接触部１６２は、電池１２０の主軸方向（図中の矢印Ａ）に弾性力を有する片持ち梁である。ここで、電池１２０の主軸方向（図中の矢印Ａ）とは、電池１２０の電極１２４面に対して垂直な方向をいう。電極接触部１６２は、端子板１４０に設けられている開口部１４４から電池１２０の主軸方向に突出する突出部１６２ａを有する。電池１２０が収容容器１１０に収容されていない場合には、この突出部１６２ａは、端子板１４０の山形部４２よりも電池の主軸方向Ａに突出する。電池１２０が収容容器１１０に収容されている場合には、電池の電極１２４が、突出部１６２ａを端子板１４０の方へ押し下げながら、端子板の山形部１４２に接触する。したがって、通常は、電極１２４に端子板の山形部１４２および導電性部材の突出部１６４ａの双方が同時に接触して導通を保っている。
【００２０】
ここで、上部固定電極部１１２と導電性部材１６０とは、電池１２０に押されて撓むことができる程度の弾性力をそれぞれ有する。一方、端子板１４０の山形部４２は、端子板の一部である。通常、上部固定電極部１１２と端子板１４０の山形部１４２とが、それぞれ上下方向から電池１２０に接することによって導通を保っている。この際、上部固定電極部１１２は、その弾性力によって電池１２０を端子板１４０の山形部１４２に対して押しつけている。このため、導電性部材１６０の弾性力が上部固定電極部１１２の弾性力よりも強いと、電池１２０が端子板１４０の山形部１４２から離れてしまう。そこで、本実施形態では、導電性部材１６０の弾性力を上部固定電極１１２の弾性力より小さく設定している。
【００２１】
次に、電池収容装置１００が外部から衝撃を受けて、電池１２０が収容容器１１０内で移動する場合の導通確保の動作を説明する。電池１２０が電池１２０の主軸方向Ａに移動しようと場合には、上部固定電極部１１２は、撓みながら電池１２０を支える。同時に、電池１２０の電極１２４は、端子板１４０の山形部１４２から離れる。しかし、電池１２０に押しつけられ撓んでいた導電性部材１６０は、復元し電池１２０に追従して主軸方向Ａに移動して行く。従って、導電性部材１６０は、電池１２０の電極１２４との導通を引き続き確保することができる。
【００２２】
図２は、端子板保持部１３０の分解斜視図である。端子板保持部１３０は、内側の底面中央部に固定具１５０が締結される突起部１３４を有する。端子板保持部１３０は、突起部１３４から突出し、端子板保持部１３０の底面から間隔を空けて導電性部材１６０の固定部１６４を支持する支持部１３６を有する。支持部１３６の高さを高く設定すれば、導電性部材１６０と端子板保持部１３０の底面との間隔が大きくなる。従って、導電性部材１６０は、主軸方法Ａにしなやかに大きく撓むことができる。また、端子板保持部１３０は、導電性部材１６０の端部を、電極接触部１６２の主軸方向に案内するガイド部１３８を有する。
【００２３】
導電性部材１６０の固定部１６４は、端子板保持部１３０の突起部１３４の外周面に沿って、ほぼ半円形に湾曲した形状を有する。電極接触部１６２は、基部をこの固定部１６４によって支持され、電池１２０の主軸方向Ａに撓むことのできる片持ち梁である。また、電極接触部１６２は、中央部を主軸方向Ａに湾曲させることにより突出部１６２ａを形成している。
【００２４】
端子板１４０は、電池１２０の電極１２４に対応する位置に、換言すれば、電極１２４と向かい合う位置に、開口部１４４を有する。電極接触部１６２の突出部１６２ａは、開口部１４４を通って電池１２０の電極１２４に向けて突出している。端子板１４０の山形部１４２は、開口部１４４の近傍にあり電池１２０の電極１２４と接触する。
【００２５】
次に、端子板保持部１３０における導電性部材１６０及び端子板１４０の取り付け位置について説明する。導電性部材１６０の固定部１６４は、端子板保持部１３０の突起部１３４の側面に沿って当てた状態で取り付けられる。また、電極接触部１６２の端部は、ガイド部１３８の間に入るように取り付けられる。従って、導電性部材１６０は、端子板保持部１３０の内部底面に平行な方向にずれることなく、電池１２０の主軸方向Ａに適切に撓むことができる。
【００２６】
また、端子板１４０は、中央付近にある穴部１４６が端子板保持部１３０の突出部１３４と対応するように取り付けられる。さらに、端子板１４０の開口部１４４を、導電性部材１６０の突出部１６２ａに通すように取り付ける。このようにすれば、端子板１４０を端子板保持部１３０の適切な位置に取り付けることができる。つまり、端子板１４０の開口部１４４は、端子板１４０を端子板保持部１３０及び導電性部材１６０に取り付けるための位置決め部分としての役割を果たしている。また、端子板１４０は、導電性部材１６０に比べて大きい。従って、端子板１４０は、導電性部材１６０を端子板保持部１３０に対して安定に押さえつけて固定することができる。
【００２７】
最後に、ネジ等の固定具１５０を用いて、端子板保持部１３０に対して導電性部材１６０と端子板１４０とを固定する。このようにネジ等の固定具１５０を用いて端子板を固定することによって、製造工程や製造コストのかかるスポット溶接をおこなわずに済ますことができる。
【００２８】
図３は、図２の端子板保持部１３０のＣＣ線に沿った断面図である。本図は、導電性部材１６０及び端子板１４０が、端子板保持部１３０に取り付けられている状態を示している。
【００２９】
導電性部材１６０の固定部１６４は、端子板１４０と端子板保持部１３０との間において固定される。詳細には、固定部１６４は、端子板保持部１３０の突起部１３４の側面形状に沿った状態で、端子板１４０と端子板保持部１３０の支持部１３６との間において固定されている。従って、固定部１６４を利用することによって、導電性部材１６０を端子板保持部１３０の適切な位置に取り付けることができる。つまり、導電性部材１６０の固定部１６４は、導電性部材１６０を端子板保持部１３０に取り付けるための位置決め部分としての役割を担っている。
【００３０】
また、導電性部材１６０の突出部１６２ａは、端子板１４０が電池１２０の電極１２４と接触している部位よりも電池１２０の主軸方向に突出する。つまり、図のように収容容器１１０に電池１２０が収容されていない状態において、導電性部材１６０の突出部１６２ａの先端は、端子板１４０の山形部１４２の頂点よりも主軸方向の高い位置にある。ここで、電池１２０が収容容器１１０に収容されると、導電性部材１６０は、電池１２０によって押し下げられる。このため、導電性部材１６０における片持ち梁である電極接触部１６２は、電池１２０の主軸と反対方向に撓む。従って、電池収容装置１００が外部から衝撃を受けて電池１２０が主軸方向Ａに移動しても、導電性部材１６０は、電池１２０に追従して移動することによって、電池１２０との導通を確保することができる。
【００３１】
（第２実施形態）
図４は、第２実施形態の電池収容装置１００における端子板保持部２３０の断面図である。本実施形態においては、端子板保持部２３０の形状及び導電性部材１６０の取り付け方が、第１実施形態とは異なる。その他の点においては、本実施形態は、第１実施形態と同様である。そこで、以下では、本実施形態が第１実施形態と相違する点についてのみを説明する。なお、以下の説明におけて、既に第１実施形態において説明した部材には、第１実施形態で用いた符号と同一の符号を付すものとする。
【００３２】
導電性部材１６０の固定部１６４は、端子板１４０の電池１２０の電極１２４側とは反対側に固定されている。つまり、固定部１６４は、端子板１４０と端子板保持部１３０の内部底面との間に固定されている。また、導電性部材１６０の電極接触部１６２は、端子板１４０の開口部１４４を通って電極１２４側へ伸びている。電極接触部１６２の先端部は、端子板１４０の電極１２４側の表面に配置されている。
【００３３】
上記のような導電性部材１６０の配置において、電極接触部１６２が電池１２０に押された場合に、導電性部材１６０の電極接触部１６２は、図の点線で示したように撓んで変形する。すなわち、電極接触部１６２の固定部１６４と反対側にある２つの端部は、それぞれ端子板１４０の表面をスライドして図の矢印Ｂ方向に移動し、端子板１４０の下方に撓むことがない。
【００３４】
一方、電池１２０が移動して電極接触部１６２が電池１２０から離れた場合には、導電性部材１６０の先端部がスライド移動することによって、導電性部材１６０の突出部１６２ａは、電池１２０の主軸Ａ方向に撓む。従って、導電性部材１６０は、電池１２０の電極１２４に追従して移動し電池１２０との導通を確保できる。導電性部材１６０に伝わった電力は、端子板１４０と接している導電性部材１６０の先端部と固定部１６４付近とから端子板１４０に伝えらえる。
【００３５】
なお、導電性部材１６０が適切にスライド移動できるように、電極接触部１６２の端部と端子板保持部１３０との距離間隔を調節することが好ましい。
【００３６】
以上のように、導電性部材１６０を端子板１４０上に配置すれば、電池１２０との導通を確保しつう端子板保持部２３０内のスペースを減らすことができる。従って、電池収容装置１００の小型化を図ることができる。特に、コンパクト化の要求されるポータブル電子機器に収容される電池収容装置に好適である。
【００３７】
以上のとおり、第１及び第２実施形態によれば、外部衝撃に対して電池の導通を維持できる導電性部材を備えた電池収容装置１００を省スペースかつ安価に提供することができる。
【００３８】
また、導電性部材１６０として線材を使用し、導電性部材１６０等の取り付けに当たってスポット溶接を行わない。従って、コスト及び作業工数のかかるスポット溶接を行わずに済み、コスト及び作業工数を低減することができる。
【００３９】
また、導電性部材として線材を用いると、曲げ加工を行うだけでよい。従って、板バネのように金型加工を必要とせず製造コストを低減することができる。
【００４０】
以上、本発明を実施の形態を用いて説明したが、本発明の技術的範囲は上記実施の形態に記載の範囲には限定されない。上記実施の形態に、多様な変更又は改良を加えることができる。その様な変更又は改良を加えた形態も本発明の技術的範囲に含まれ得ることが、特許請求の範囲の記載から当業者に理解されるところである。
【００４１】
（変形例）
図５は、図４に示した第２実施形態の端子板保持部２３０の形状及び導電性部材１６０の取り付け位置を変更した一例を示す図である。本図においては、導電性部材１６０の固定部１６４は、端子板１４０における電池１２０の電極１２４側の面に、固定具１５０によって固定される。従って、導電性部材１６０は端子板１４０面上にあるので、端子板保持部３３０の内側のスペースを減少させることができる。また、端子板１４０が端子板保持部３３０の内部底面に面して接触するので、端子板１４０が安定してぐらつくことがない。また、端子板１４０及び導電性部材１６０の取り付けを容易に行うことができる。なお、本図では、第２実施形態のように端子板１４０の開口部１４４は、無くてもよい
【００４２】
図６は、第１、２実施形態における導電性部材１６０の変形例を示す図である。本図の導電性部材１７０は、例えば、細長い金属性の板材からなる。板材１７０は、中央付近に穴部１７４を有する。この穴部１７４を取り付け用の位置決め部分として利用することによって、板材１７０は、固定具１５０によって端子板保持部１３０の所定位置に取り付けられる。
【００４３】
なお、以上の図１から図６において、端子板１４０における開口部１４４及び山形部１４２の数は、図に限定されない。また、電池の方向、導電性部材１６０と接する電極の種類は、図に限定されない。また、導電性部材１６０本数は、１本に限定されない。
【００４４】
【発明の効果】
上記説明から明らかなように、本発明によれば、電池収容装置が外部から衝撃を受けて収容された電池が移動した場合に、導電性部材が電池との導通を適切に確保することができる。
【図面の簡単な説明】
【図１】第１実施形態の電池収容装置１００の概略断面図である。
【図２】端子板保持部１３０の分解斜視図である。
【図３】図２の端子板保持部１３０のＣＣ線に沿った断面図である。
【図４】第２実施形態の電池収容装置１００における端子板保持部２３０の断面図である。
【図５】図４に示した第２実施形態の端子板保持部２３０の形状及び導電性部材１６０の取り付け位置を変更した一例を示す図である。
【図６】第１、２実施形態における導電性部材１６０の変形例を示す図である。
【符号の説明】
１００電池収容装置
１１０収容容器
１１２上側固定電極部
１２０電池
１２２第１の電極
１２４第２の電極
１３０端子板保持部
１３２軸
１３４突起部
１３８ガイド部
１４０端子板
１４２山形部
１４４開口部
１５０固定具
１６０導電性部材
１６２電極接触部
１６２ａ突出部
１６４固定部[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a battery accommodating device that accommodates a battery and supplies electric power of the battery to the outside. In particular, the present invention relates to a battery housing device that can ensure electrical continuity with a battery even when subjected to an impact from the outside.
[0002]
[Prior art]
Conventionally, a battery housing device disclosed in Japanese Patent Application Laid-Open No. 7-85851 is known as this type of device. The battery housing device has a minus terminal that contacts the minus electrode of the battery and a plus terminal that contacts the plus electrode of the battery. The negative terminal has a spring property and strongly presses the accommodated battery toward the positive terminal. On the other hand, the plus terminal is formed from a single plate material, and has a fixed contact portion having no spring property and a movable contact portion having a spring property and being able to bend toward the minus terminal. The fixed contact portion is a contact portion that supports the battery pressed by the minus terminal in a stationary manner. On the other hand, when the battery moves toward the negative terminal so that the battery moves away from the fixed contact part for some reason, the movable contact part follows the positive electrode of the battery and bends to the negative terminal side to ensure continuity with the battery. It is a contact part.
[0003]
By the way, in order to ensure that the positive terminal is electrically connected to the battery electrode, it is desired to increase the distance that the movable contact can bend toward the negative electrode. In addition, the movable contact needs to have a spring property smaller than that of the negative terminal. This is because if the spring property of the movable contact is too great, the minus terminal cannot press the battery against the fixed contact portion of the plus terminal. For this reason, as a movable contact of the plus terminal, a flexible contact having a large distance that can be bent while having a small spring property has been desired.
[0004]
[Problems to be solved by the invention]
However, in the battery housing device disclosed in Japanese Patent Application Laid-Open No. 7-85851, the plus terminal is formed from a single plate material, so that it is difficult to satisfy the above-described conditions desired for the movable contact. That is, in order to obtain a stationary part such as a fixed contact portion, a relatively hard and thick plate material must be used. However, there has been a problem that it is difficult to form a movable contact that has a small spring property and bends flexibly and flexibly from such a thick and thick plate material.
[0005]
Then, an object of this invention is to provide the battery accommodating apparatus which can solve said subject. This object is achieved by a combination of features described in the independent claims. The dependent claims define further advantageous specific examples of the present invention.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the battery accommodating device of the first aspect of the present invention accommodates a battery and supplies the battery power to the outside. The battery housing device includes a terminal plate that comes into contact with the battery electrode, a terminal plate holding portion to which the terminal plate is attached, a fixture that fixes the terminal plate to the terminal plate holding portion, A conductive member that secures electrical conduction between the terminal plate and the electrode, the conductive member extending from the fixed portion to the electrode and fixed to the terminal plate by a fixture, and extending in the main axis direction of the battery And an electrode contact portion having elasticity.
[0007]
The electrode contact portion may be a cantilever beam whose base portion is supported by a fixing portion and can be bent in the main axis direction of the battery. The electrode contact portion has a shape curved toward the electrode direction, and the end portion opposite to the fixed portion of the electrode contact portion is slidably disposed on the electrode side surface of the terminal plate. Also good.
[0008]
The terminal plate has an opening at a position corresponding to the electrode of the battery, the fixing portion of the conductive member is fixed on the opposite side of the electrode side of the terminal plate, and the electrode contact portion of the conductive member is open. The end may be disposed on the electrode side surface of the terminal board by extending to the electrode side through the portion.
[0009]
The electrode contact portion of the conductive member may have a protruding portion that protrudes in the principal axis direction from a portion where the terminal plate is in contact with the electrode. The terminal plate may have an opening at a position corresponding to the electrode of the battery, and the protruding portion of the electrode contact portion may protrude toward the battery electrode through the opening. The fixing part may be fixed between the terminal board and the terminal board holding part.
[0010]
The terminal plate holding part has a protrusion part to which the fixture is fastened, the fixing part of the conductive member is deformed along the side surface of the protrusion part, and the conductive member is connected to the side surface of the protrusion part. You may make it fix to a terminal board holding | maintenance part in the state applied to.
[0011]
The terminal plate holding part has a support part for supporting the fixing part of the conductive member at a distance from the bottom surface of the terminal board holding part, and the fixing part of the conductive member is fixed between the terminal board and the support part. You may be made to do. The conductive member may be made of a wire.
[0012]
The above summary of the invention does not enumerate all the necessary features of the present invention, and sub-combinations of these feature groups can also be the invention.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described through embodiments of the invention. However, the following embodiments do not limit the claimed invention, and all combinations of features described in the embodiments are the solution of the invention. It is not always essential to the means.
[0014]
(First embodiment)
FIG. 1 is a schematic cross-sectional view of the battery accommodating device 100 of the first embodiment. The battery housing device 100 includes a housing container 110 that houses the battery 120. An upper fixed electrode portion 112 is provided on the upper surface of the container 110 in the drawing. Upper fixed electrode portion 112 is in contact with first electrode 122 of battery 120. The upper fixed electrode portion 112 is formed of, for example, a leaf spring.
[0015]
A terminal plate holding part 130 is provided at the lower end of the container 110 in the figure. The terminal board holding part 130 holds the terminal board 140. In addition, the terminal plate holding part 130 is a lid of the storage container 110. That is, the terminal board holding | maintenance part 130 can be rotated and rotated with the axis | shaft 132 as a fulcrum, as shown by the dotted line in the figure. By opening the terminal board holding part 130, the battery 120 can be taken in and out.
[0016]
The terminal board 140 held by the terminal board holding part 130 contacts the second electrode 124 of the battery 120 together with the upper fixed electrode part 112, thereby transmitting the electric power of the battery 120 to the outside through a wiring (not shown). . Terminal plate 140 has a chevron 142 that protrudes from the surface toward battery 120. Terminal plate 140 is in contact with electrode 124 of battery 120 at chevron 142.
[0017]
The terminal plate 140 is fixed to the terminal plate holding part 130 by a fixing tool 150 such as a screw, a nail, or a rivet. The fixing tool 150 is inserted and fixed to a protrusion 134 provided near the center of the terminal board holding part 130. At this time, the fixture 150 fixes the terminal plate 140 so as to be sandwiched between the protrusions 134 of the terminal plate holding unit 130.
[0018]
The terminal board holding part 130 holds the conductive member 160 in addition to the terminal board 140. Similar to the terminal plate holding portion 130, the conductive member 160 is fixed to the terminal plate holding portion 130 by being partly sandwiched between the fixture 150 and the protrusion 134 of the terminal plate holding portion 130. ing. The conductive member 160 is a member for ensuring electrical connection between the terminal plate 140 and the battery electrode 124 when the battery 120 is momentarily separated from the terminal plate 140 due to an external impact. The conductive member 160 is made of, for example, a metal wire such as a conductive wire. The conductive member 160 includes a fixing portion 164 that is fixed between the terminal plate 140 and the terminal plate holding portion 130 by a force acting from the fixing device 150, and an electrode contact portion 162 that extends from the fixing portion 164 to the battery electrode 124. And have.
[0019]
The electrode contact portion 162 is a cantilever beam having an elastic force in the main axis direction (arrow A in the figure) of the battery 120. Here, the main axis direction of the battery 120 (arrow A in the figure) means a direction perpendicular to the surface of the electrode 124 of the battery 120. The electrode contact portion 162 has a protruding portion 162 a that protrudes from the opening 144 provided in the terminal plate 140 in the main axis direction of the battery 120. When the battery 120 is not housed in the housing container 110, the projecting portion 162 a projects in the main axis direction A of the battery from the mountain-shaped portion 42 of the terminal plate 140. When the battery 120 is housed in the housing container 110, the battery electrode 124 contacts the chevron 142 of the terminal plate while pushing down the protrusion 162 a toward the terminal plate 140. Therefore, normally, both the terminal portion chevron 142 and the conductive member protrusion 164a are in contact with the electrode 124 at the same time to maintain conduction.
[0020]
Here, the upper fixed electrode portion 112 and the conductive member 160 each have an elastic force that can be pressed and bent by the battery 120. On the other hand, the chevron 42 of the terminal board 140 is a part of the terminal board. In general, the upper fixed electrode portion 112 and the mountain-shaped portion 142 of the terminal plate 140 are kept conductive by contacting the battery 120 from above and below, respectively. At this time, the upper fixed electrode portion 112 presses the battery 120 against the chevron portion 142 of the terminal board 140 by its elastic force. For this reason, when the elastic force of the conductive member 160 is stronger than the elastic force of the upper fixed electrode portion 112, the battery 120 is separated from the chevron portion 142 of the terminal plate 140. Therefore, in this embodiment, the elastic force of the conductive member 160 is set to be smaller than the elastic force of the upper fixed electrode 112.
[0021]
Next, an operation for ensuring conduction when the battery housing apparatus 100 receives an impact from the outside and the battery 120 moves in the housing container 110 will be described. When the battery 120 is about to move in the main axis direction A of the battery 120, the upper fixed electrode portion 112 supports the battery 120 while being bent. At the same time, the electrode 124 of the battery 120 is separated from the chevron 142 of the terminal board 140. However, the conductive member 160 that has been pressed and bent against the battery 120 is restored and moves in the main axis direction A following the battery 120. Therefore, the conductive member 160 can continuously ensure conduction with the electrode 124 of the battery 120.
[0022]
FIG. 2 is an exploded perspective view of the terminal board holding part 130. The terminal board holding part 130 has the protrusion part 134 to which the fixing tool 150 is fastened at the inner bottom center part. The terminal board holding part 130 has a support part 136 that protrudes from the protruding part 134 and supports the fixing part 164 of the conductive member 160 at a distance from the bottom surface of the terminal board holding part 130. If the height of the support part 136 is set high, the space | interval of the electroconductive member 160 and the bottom face of the terminal board holding | maintenance part 130 will become large. Therefore, the conductive member 160 can be flexed greatly and flexibly by the spindle method A. Further, the terminal board holding part 130 has a guide part 138 that guides the end part of the conductive member 160 in the main axis direction of the electrode contact part 162.
[0023]
The fixing portion 164 of the conductive member 160 has a shape curved in a substantially semicircular shape along the outer peripheral surface of the protruding portion 134 of the terminal board holding portion 130. The electrode contact portion 162 is a cantilever beam whose base portion is supported by the fixing portion 164 and can be bent in the main axis direction A of the battery 120. Further, the electrode contact portion 162 forms a protruding portion 162a by curving the central portion in the main axis direction A.
[0024]
Terminal plate 140 has an opening 144 at a position corresponding to electrode 124 of battery 120, in other words, at a position facing electrode 124. The protruding portion 162 a of the electrode contact portion 162 protrudes toward the electrode 124 of the battery 120 through the opening 144. The chevron 142 of the terminal board 140 is in the vicinity of the opening 144 and contacts the electrode 124 of the battery 120.
[0025]
Next, the attachment position of the conductive member 160 and the terminal board 140 in the terminal board holding | maintenance part 130 is demonstrated. The fixing portion 164 of the conductive member 160 is attached in a state of being applied along the side surface of the protruding portion 134 of the terminal plate holding portion 130. Further, the end portion of the electrode contact portion 162 is attached so as to enter between the guide portions 138. Therefore, the conductive member 160 can be appropriately bent in the main axis direction A of the battery 120 without being displaced in a direction parallel to the inner bottom surface of the terminal plate holding portion 130.
[0026]
The terminal board 140 is attached so that the hole 146 near the center corresponds to the protruding part 134 of the terminal board holding part 130. Further, the opening 144 of the terminal plate 140 is attached so as to pass through the protruding portion 162 a of the conductive member 160. In this way, the terminal board 140 can be attached to an appropriate position of the terminal board holding part 130. That is, the opening 144 of the terminal plate 140 serves as a positioning portion for attaching the terminal plate 140 to the terminal plate holding unit 130 and the conductive member 160. Further, the terminal board 140 is larger than the conductive member 160. Accordingly, the terminal plate 140 can stably hold the conductive member 160 against the terminal plate holding portion 130 and fix it.
[0027]
Finally, the conductive member 160 and the terminal plate 140 are fixed to the terminal plate holding part 130 using a fixing tool 150 such as a screw. In this way, by fixing the terminal plate using the fixing tool 150 such as a screw, it is possible to avoid spot welding which requires a manufacturing process and manufacturing cost.
[0028]
FIG. 3 is a cross-sectional view taken along line CC of the terminal board holding portion 130 of FIG. This figure shows a state in which the conductive member 160 and the terminal plate 140 are attached to the terminal plate holding part 130.
[0029]
The fixing portion 164 of the conductive member 160 is fixed between the terminal plate 140 and the terminal plate holding portion 130. Specifically, the fixing portion 164 is fixed between the terminal plate 140 and the support portion 136 of the terminal plate holding portion 130 in a state along the side surface shape of the protruding portion 134 of the terminal plate holding portion 130. Therefore, by using the fixing portion 164, the conductive member 160 can be attached to an appropriate position of the terminal board holding portion 130. That is, the fixing portion 164 of the conductive member 160 serves as a positioning portion for attaching the conductive member 160 to the terminal board holding portion 130.
[0030]
Further, the protruding portion 162 a of the conductive member 160 protrudes in the main axis direction of the battery 120 from a portion where the terminal plate 140 is in contact with the electrode 124 of the battery 120. That is, when the battery 120 is not housed in the housing container 110 as shown, the tip of the protruding portion 162a of the conductive member 160 is at a position higher in the main axis direction than the apex of the mountain-shaped portion 142 of the terminal plate 140. . Here, when the battery 120 is housed in the housing container 110, the conductive member 160 is pushed down by the battery 120. For this reason, the electrode contact portion 162 that is a cantilever in the conductive member 160 bends in the direction opposite to the main axis of the battery 120. Therefore, even when the battery accommodating device 100 receives an impact from the outside and the battery 120 moves in the main axis direction A, the conductive member 160 ensures the continuity with the battery 120 by moving following the battery 120. be able to.
[0031]
(Second Embodiment)
FIG. 4 is a cross-sectional view of the terminal plate holding portion 230 in the battery housing device 100 of the second embodiment. In this embodiment, the shape of the terminal board holding | maintenance part 230 and the attachment method of the electroconductive member 160 differ from 1st Embodiment. In other respects, the present embodiment is the same as the first embodiment. Therefore, only the differences of the present embodiment from the first embodiment will be described below. In the following description, the members already described in the first embodiment are denoted by the same reference numerals as those used in the first embodiment.
[0032]
The fixing portion 164 of the conductive member 160 is fixed to the terminal plate 140 on the side opposite to the electrode 124 side of the battery 120. That is, the fixing portion 164 is fixed between the terminal plate 140 and the inner bottom surface of the terminal plate holding portion 130. The electrode contact portion 162 of the conductive member 160 extends to the electrode 124 side through the opening portion 144 of the terminal plate 140. The tip of the electrode contact portion 162 is disposed on the surface of the terminal plate 140 on the electrode 124 side.
[0033]
In the arrangement of the conductive member 160 as described above, when the electrode contact portion 162 is pushed by the battery 120, the electrode contact portion 162 of the conductive member 160 bends and deforms as shown by the dotted line in the figure. That is, the two end portions of the electrode contact portion 162 on the side opposite to the fixed portion 164 slide on the surface of the terminal plate 140 and move in the direction of arrow B in the figure, and bend downward of the terminal plate 140. Absent.
[0034]
On the other hand, when the battery 120 moves and the electrode contact portion 162 moves away from the battery 120, the leading end portion of the conductive member 160 slides, so that the protruding portion 162 a of the conductive member 160 becomes the main axis of the battery 120. Bends in direction A. Accordingly, the conductive member 160 can move following the electrode 124 of the battery 120 to ensure conduction with the battery 120. The electric power transmitted to the conductive member 160 is transmitted to the terminal plate 140 from the front end portion of the conductive member 160 in contact with the terminal plate 140 and the vicinity of the fixing portion 164.
[0035]
It is preferable to adjust the distance between the end of the electrode contact portion 162 and the terminal plate holding portion 130 so that the conductive member 160 can slide appropriately.
[0036]
As described above, if the conductive member 160 is arranged on the terminal plate 140, the space in the terminal plate holding portion 230 that can maintain the electrical connection with the battery 120 can be reduced. Therefore, the battery housing device 100 can be downsized. In particular, it is suitable for a battery accommodating device accommodated in a portable electronic device that is required to be compact.
[0037]
As described above, according to the first and second embodiments, it is possible to provide the battery housing device 100 including the conductive member capable of maintaining the continuity of the battery against an external impact in a space-saving and inexpensive manner.
[0038]
Further, a wire is used as the conductive member 160, and spot welding is not performed when the conductive member 160 or the like is attached. Therefore, it is not necessary to perform spot welding which requires cost and work man-hours, and the cost and work man-hours can be reduced.
[0039]
Further, when a wire is used as the conductive member, it is only necessary to perform bending. Therefore, it is possible to reduce the manufacturing cost without the need for mold processing like a leaf spring.
[0040]
As mentioned above, although this invention was demonstrated using embodiment, the technical scope of this invention is not limited to the range as described in the said embodiment. Various modifications or improvements can be added to the above embodiment. It will be understood by those skilled in the art from the description of the scope of the claims that the embodiments added with such changes or improvements can also be included in the technical scope of the present invention.
[0041]
(Modification)
FIG. 5 is a diagram illustrating an example in which the shape of the terminal board holding unit 230 and the attachment position of the conductive member 160 according to the second embodiment illustrated in FIG. 4 are changed. In this drawing, the fixing portion 164 of the conductive member 160 is fixed to the surface of the terminal plate 140 on the electrode 124 side of the battery 120 by the fixing tool 150. Therefore, since the conductive member 160 is on the surface of the terminal plate 140, the space inside the terminal plate holding portion 330 can be reduced. Moreover, since the terminal board 140 faces and contacts the inner bottom surface of the terminal board holding part 330, the terminal board 140 does not wobble stably. Further, the terminal plate 140 and the conductive member 160 can be easily attached. In this figure, the opening 144 of the terminal board 140 may be omitted as in the second embodiment.
FIG. 6 is a view showing a modification of the conductive member 160 in the first and second embodiments. The conductive member 170 in the figure is made of, for example, an elongated metal plate. The plate member 170 has a hole 174 near the center. By using the hole 174 as a positioning portion for attachment, the plate member 170 is attached to a predetermined position of the terminal plate holding portion 130 by the fixture 150.
[0043]
1 to 6 described above, the numbers of the openings 144 and the chevron portions 142 in the terminal board 140 are not limited to the drawings. Further, the direction of the battery and the type of the electrode in contact with the conductive member 160 are not limited to the drawings. The number of conductive members 160 is not limited to one.
[0044]
【The invention's effect】
As is clear from the above description, according to the present invention, when the battery accommodated by the battery accommodating device receives an impact from the outside and the battery accommodated moves, the conductive member can appropriately ensure conduction with the battery. .
[Brief description of the drawings]
FIG. 1 is a schematic cross-sectional view of a battery housing device 100 according to a first embodiment.
FIG. 2 is an exploded perspective view of a terminal board holding unit 130. FIG.
3 is a cross-sectional view taken along line CC of the terminal board holding portion 130 of FIG.
FIG. 4 is a cross-sectional view of a terminal plate holding unit 230 in the battery housing device 100 of the second embodiment.
FIG. 5 is a diagram showing an example in which the shape of the terminal board holding portion 230 and the attachment position of the conductive member 160 of the second embodiment shown in FIG. 4 are changed.
FIG. 6 is a view showing a modification of the conductive member 160 in the first and second embodiments.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 100 Battery accommodation apparatus 110 Housing container 112 Upper side fixed electrode part 120 Battery 122 1st electrode 124 2nd electrode 130 Terminal board holding part 132 Shaft 134 Protrusion part 138 Guide part 140 Terminal board 142 Angle-shaped part 144 Opening part 150 Fixing tool 160 Conductive member 162 Electrode contact portion 162a Protruding portion 164 Fixed portion

Claims

In a battery housing device that houses a battery and supplies the battery power to the outside,
From the surface to protrude toward a direction of the battery includes a chevron portion in contact with the electrodes of the battery, a terminal plate in contact with the front Symbol electrodes in the mountain-shaped portions,
A terminal plate holding part to which the terminal plate is attached;
A fixture for fixing the terminal plate to the terminal plate holding portion;
When the electrodes are spaced from said angled portion is also provided with a conductive member for securing conduction between the electrode and the terminal plate,
The conductive member includes a fixing portion which is fixed to the front SL terminal plate, extending from the fixed portion to the electrode, to have a electrode contact portion having elasticity to the main axis direction of the battery,
The fixing device fixes the fixing portion to the electrode side surface of the terminal board,
The end of the electrode contact portion opposite to the fixed portion is arranged so as to slide and move on the surface of the terminal plate on the electrode side without bending downward of the terminal plate. A battery accommodating device.

2. The battery accommodating device according to claim 1, wherein the electrode contact portion is a cantilever beam having a base portion supported by the fixing portion and capable of bending in a principal axis direction of the battery.

The electrode contact section, a battery housing device according to have a curved shape toward the electrode direction in claim 1, feature.

The said electrode contact part of the said electroconductive member has a protrusion part which protrudes in the said main axis direction rather than the site | part with which the said terminal board is contacting the said electrode. Battery storage device.

The terminal board holding part has a protrusion part to which the fixing tool is fastened, the fixing part of the conductive member is deformed along a side surface of the protrusion part, and the conductive member is fixed to the fixing part. The battery accommodating device according to claim 1, wherein the battery housing device is fixed to the terminal board holding portion in a state where the portion is brought into contact with a side surface of the protruding portion.