JP4234811B2

JP4234811B2 - Battery case

Info

Publication number: JP4234811B2
Application number: JP19980698A
Authority: JP
Inventors: 里美田中; 知広山田; 佐藤　　淳; 喜久鶴田
Original assignee: Sony Corp
Current assignee: Sony Corp
Priority date: 1998-06-30
Filing date: 1998-06-30
Publication date: 2009-03-04
Anticipated expiration: 2018-06-30
Also published as: JP2000021376A

Description

【０００１】
【発明の属する技術分野】
本発明は、内部に電池を収納し、この電池により電源が供給される機器本体部に装着されて使用されるバッテリーケースに関し、特に、バッテリーケースとしての製品の品質を向上する技術に関する。
【０００２】
【従来の技術】
従来、いわゆるポータブル型のテープレコーダ装置、ディスクプレーヤ装置、ビデオカメラ装置、或いは、ラジオ受信装置の如き、携帯用の記録再生装置又は音響再生装置として使用される電子機器が提案されている。
このような電子機器は、装置構成の小型化を図るため、駆動電源を供給する電池としても小型のものを用いるように構成されている。
小型の電池としては、例えば、小型の缶状に構成されたアルカリ電池やリチウム電池等のいわゆるボタン電池、又は、薄板状に形成されたいわゆるＮｉ−Ｃｄ電池の如き充電式の電池（二次電池）がある。
以上のような小型の電池は、上記電子機器の外筐体内に収納されて使用される。
【０００３】
ところで、上述のような小型の電池は、放電できる電気量が少ないため、長時間にわたって電子機器を連続的に使用する場合には、使用途中で電池交換を行う必要を生じさせ不便である。
このため、電子機器においては、電池を収納したバッテリケースを外筐体の外方側に着脱可能に取り付け得るようにしたものが提案されている。
このバッテリーケースは、いわゆる単３型や単２型の乾電池を収納する筐体部を有し、この筐体部の外周面部に、該乾電池の正負各極に対応して接続される一対の接点部を有している。
【０００４】
かかるバッテリーケースは、電子機器の外筐体に装着されることにより、各接点部を、電子機器の電源供給端子に接続させる。
即ち、電子機器は、各接点部を介して、乾電池より電源が供給される。この乾電池は、いわゆるアルカリ電池、マンガン電池の如き一次電池や、充電式の二次電池、或いは、積層電池等であって、上述した小型の電池よりも体積が大きいため、放電電気量を多くすることができ、電子機器は、乾電池より電源を供給されることによって、長時間にわたり連続して使用することができる。
【０００５】
以上のようなバッテリーケースとては、例えば、特開平８−１１１２１３号公報に開示されたものが知られている。
このバッテリーケースは、図１６及び図１７に示すように構成される。
即ち、バッテリーケースは、電池を収納する筐体部１を有している。この筐体部１は、下面部が蓋部２となっており、この蓋部２は、一側の図示しないヒンジ部を介して開閉可能となっており、開蓋されることによって、筐体部１内への電池の装着及び取り出しが行えるようになっている。
【０００６】
前記筐体部１内は、電池が収納される電池収納室３となっており、該電池収納室３には、電池の正極に接続される正極端子板４と、電池の負極に接続される負極端子バネ５とが、両端側に振り分けられて配設されている。
そして、筐体部１の外周部には、外方に臨まされた一対の接点部６，７が配設されている。これらの接点部６，７は、電池の正負各極に対応して接続されている。即ち、一方の接点部６は、筐体部１内において、正極端子板４に接続されている。又、他方の接点部７は、筐体部１内において、負極端子バネ５に接続されている。
【０００７】
【発明が解決しようとする課題】
しかしながら、このような従来のバッテリーケースにあっては、次のような問題点があった。
即ち、従来のバッテリーケースにおいては、電池を収納する筐体部１は、下面部が蓋部２となっており、この蓋部２は、一側のヒンジ部を介して開閉可能となっており、開蓋されることによって、筐体部１内への電池の装着及び取り出しが行えるようになっている。
【０００８】
しかし、このような電池の装着及び取り出し構造では、電池を横にし、かつ斜めにした状態で、先ず、電池の一端の負極を負極端子バネ５に押し当てて圧縮変形させ、この状態で、電池の他端を押し下げて、電池収納室３内に挿入し、他端の正極を正極端子板４に当接して、電池をセットする必要があり、電池のセットがワンタッチで行えず、電池のセット性が悪く、電池の取り出し性も悪い。
【０００９】
加えて、蓋部２は、筐体部１に対して、爪と溝等の係合で閉じ状態にロックする構成であるため、蓋部２を開き難く、爪と溝等の磨耗等によって、逆に蓋部２のロック状態が緩くなり、蓋部２が予期せずに簡単に開いて、電池が離脱するおそれもある。
又、電池のセット時に電池の方向が適正でなく、電池の一端の負極の負極端子バネ５への押し当て方が悪いと、該負極端子バネ５が変形し、その後の電池の端子への接触性に支障をきたし、接触不良を引き起こす。
【００１０】
更に、負極端子バネ５は電池の正極に、正極端子板１８は電池の負極にも接触可能であるため、電池の方向を誤って挿入した場合に逆接状態となるおそれがある。
更に、従来の正極端子板４は単なる板状に形成されているため、次の問題がある。
即ち、電子機器の振動等によって筐体部の内側にて電池が動き、負極端子バネ５の圧縮によって電池が一瞬ではあるが正極端子板４から離れるおそれがある。
【００１１】
一般に、電子機器がアナログ方式のものであれば上記のような電池の一瞬の非接触状態では何ら問題はない。
しかし、近年のＣＤ（コンパクトディスク）やＭＤ（ミニディスク）等のようにデジタル方式のディスクプレーヤ装置にあっては、上記のような電池の一瞬の非接触状態では大きな問題となり、音が飛ぶ等、音の再生に支障を来たす。
【００１２】
そこで、本発明は、上記のような課題を解決するためなされたものであり、バッテリーケースにおける蓋部の開閉構造、正負の端子の構造等の改良を行って、電池の着脱性の向上、電池の装着状態の安定化を図ると共に、接触不良防止、電池の逆方向挿入時の逆接の発生防止等を図って電気的接続の信頼性を高める等、製品としての信頼性を向上し得るバッテリーケースを提供することを目的とする。
【００１３】
【課題を解決するための手段】
このため、請求項１に係る発明は、一端が開放された筐体と該筐体の開放部を開閉する蓋体とからなり、電池を収納する電池収納室を内部に構成する開閉自由なケース本体と、前記筐体の内側に装着されて電池収納室内に収納された電池の正極に接続される正極端子板と、前記筐体の閉塞端部内側に装着されて電池の負極に接続される負極端子バネと、前記電池収納室内において、前記正極端子板及び負極端子バネにそれぞれ接続されて、前記ケース本体外面部から外方に臨まされる一対の接点部と、を含んで構成されるバッテリーケースであって、
前記蓋体は、内周面の周方向に沿った所定間隔毎の複数位置に係合突起部を有すると共に、前記正極端子板が固定された外蓋部と、該外蓋部の内側で前記正極端子板の固定位置下側にて所定角度範囲を回動自由となるように装着され、蓋体を開閉するためのヒンジ部の回動部が外周端に形成された内蓋部とから構成され、
前記筐体の開放部の外端には前記ヒンジ部の回動部を回動自由に支持する回動支持部が形成される一方、その内部には、その開放部から一部が外方に突出するように配設され、該突出部分の外周面の周方向に沿った所定間隔毎の複数位置に傾斜した溝部が形成される略筒状部材が装着され、
前記略筒状部材の溝部形成側端部は、その一部に切除部が形成されて、その径が収縮するべく弾性変形可能に構成されると共に、該略筒状部材の溝部は、略筒状部材の突出部分の先端部における始端部が開放され、一つの溝部の終端部の手前部分に凸部が形成された構成であって、始端部から挿入された前記外蓋部の各係合突起部が該外蓋部の回動によって各溝部の終端部までスライド移動し、一つの係合突起部が前記一つの溝部終端部の凸部を乗り越えることで、該凸部に係合して前記蓋体のロックを行う構成とされたことを特徴とする。
【００１４】
請求項２に係る発明は、前記外蓋部内端面には周方向に沿った所定間隔毎の複数位置に突起部を有し、内蓋部には周方向に沿った所定間隔毎の複数位置に前記突起部がスライド自由に挿入支持される円弧状の溝部が形成され、外蓋部の内側で内蓋部が所定角度範囲を回動自由となることを特徴とする。
【００１５】
請求項３に係る発明は、前記正極端子板は、前記内蓋部の溝部から突出する外蓋部の突起部が嵌め込まれる孔を有する略円形のベース部と、該ベース部から傾斜して立ち上げられて、電池の正極に接続される接続片部と、から構成されることを特徴とする。
【００１６】
請求項４に係る発明は、前記ベース部における接続片部の立ち上げ部の両側に切溝が形成されていることを特徴とする。
【００１７】
請求項５に係る発明は、前記接続片部には、両端部に該接続片部の係合部が形成され、中央部に陥凹部が形成された非導電性材料からなるアダプタが装着され、該アダプタの陥凹部から接続片部の電池の正極に接続される部分が露出することを特徴とする。
【００１８】
請求項６に係る発明は、前記外蓋部の係合突起部の先端部内側の面に勾配が設けられていることを特徴とする。
【００１９】
請求項７に係る発明は、前記正極端子板に接続される接点部は、一端部に正極端子板に接続される接続部を有し、筐体内側に該筐体内面に沿って配設され固定される略短冊状の第１の正極接点部材と、筐体の外面部に外方に拡張形成された収納溝に収納配置され、一端部が該第１の正極接点部材に接触され、他端部が前記収納溝から筐体外方に臨まされる第２の正極接点部材と、から構成される一方、
前記負極端子バネに接続される接点部は、一端部に負極端子バネに接続される接続部を有し、筐体内側に該筐体内面に沿って配設され固定される略短冊状の第１の負極接点部材と、前記収納溝に収納配置され、一端部が該第１の負極接点部材に接触され、他端部が前記収納溝から筐体外方に臨まされる第２の負極接点部材と、から構成されることを特徴とする。
【００２０】
請求項８に係る発明は、前記第２の正極接点部材と第２の負極接点部材は、それぞれ略Ｓ字形状に屈曲形成されてバネ性が付与された構成である。
【００２１】
請求項９に係る発明は、前記略筒状部材は、突出部分と反対側端部に筐体内部に該筐体の軸線方向に沿って延び、筐体内部の前記第１の正極接点部材と第２の負極接点部材をカバーするカバー部を有し、該カバー部の第１の正極接点部材と第２の負極接点部材に対面する面に勾配面が、筐体内部側に面する側に円弧面が、それぞれ形成されたことを特徴とする。
【００２２】
請求項１０に係る発明は、前記蓋体を開閉するためのヒンジ部の回動部を回動自由に支持する回動支持部は、筐体の開放部外端に該筐体の外壁の一部を外側に膨出させて拡張形成した溝部内側に形成される支持溝部と、略筒状部材外面の爪部との間に形成される支持溝から構成されることを特徴とする。
【００２３】
請求項１１に係る発明は、前記ヒンジ部の回動部は、前記支持溝内を軸方向にスライド自由に構成したことを特徴とする。
【００２４】
請求項１２に係る発明は、前記筐体内周面と略筒状部材外周面に形成された浅い凹部内面との間には、短冊状の接続片が挟持固定され、該接続片の一端部は前記第１の正極接点部材に接続されると共に、他端部の端縁は筐体の開放端部の端縁から外方に露呈して、蓋体を閉じたときに、該蓋体内端面に装着された正極端子板の接触片部に電気的に接触することを特徴とする。
【００２５】
かかる構成によれば、請求項１に係る発明では、蓋体を例えば上方から見て半時計方向に回動すると、蓋体が筐体から離脱し、該筐体の開放部が開かれる。
この状態で、電池を下側が負極となるようにして、筐体内部に落とし込んで収納させる。
【００２６】
次に、蓋体を筐体の開放端部に被せてから、上方から見て時計方向に回動すると、外蓋部の各係合突起部が筐体の開放部から外方に突出する略筒状部材の外周面の各溝部に挿入される。即ち、各溝部の始端部から挿入された外蓋部の各係合突起部が該外蓋部の回動によって各溝部の終端部までスライド移動する。この場合、一つの係合突起部がスライド移動により凸部を乗り越えようとする際に、略筒状部材の溝部形成側端部は、その径が収縮するように弾性変形して乗り越えを可能とし、乗り越えた後に、略筒状部材の溝部形成側端部の復元バネ力により元の径に復帰し、一つの係合突起部が溝部の終端部にて凸部に係合して前記蓋体のロックが行われる。
【００２７】
即ち、蓋体はねじ式に筐体側に嵌合され、ねじを緩める如く蓋体を回動することにより筐体から外れ（ヒンジ部にて繋がっているため分離するわけではない）、ねじを締める如く蓋体を回動することにより筐体に嵌合固定される。
このように蓋体を閉じた状態では、電池の負極が負極端子バネに圧接し、正極が正極端子板に圧接する。
【００２８】
請求項２に係る発明において、簡単な構成によって、外蓋部の内側で内蓋部が所定角度範囲をスムーズに回動するようになる。
【００２９】
請求項３に係る発明において、接続片部は、正極端子板のベース部から傾斜して立ち上げられており、バネ性が付与されているため、電池の正極に押されて圧縮変形し、このときのバネの反発力で該電池の正極に確実に圧接される。
【００３０】
請求項４に係る発明において、ベース部における接続片部の立ち上げ部の両側に切溝が形成されていることにより、接続片部のバネの反発力が強く、かつ、永年使用によってもこのバネのへたりが生じ難い等耐力性に優れ、接触不良を引き起こし難い。
【００３１】
請求項５に係る発明において、接続片部には中央部に陥凹部が形成された非導電性材料からなるアダプタが装着されることによって、接続片部の電池の正極と接触する部分は奥まったところにあり、電池の突出した正極は接触可能であるが、面である負極は接触不可能である。
このことは、電池の正負を逆にして筐体内に電池を誤挿入した場合であっても、電池の負極が接続片部とは接触状態とならず、逆接防止の利点を生む。
【００３２】
請求項６に係る発明において、外蓋部の係合突起部の先端部内側の面に勾配が設けられていることによって、係合突起部が凸部を乗り越え易く、また、係合突起部が凸部を乗り越えてこれと係合した状態である蓋体ロック時は、この係合が外れ難いという利点がある。
【００３３】
請求項７に係る発明において、正極端子板に接続される接点部を、略短冊状の第１の正極接点部材と、第２の正極接点部材と、から構成し、負極端子バネに接続される接点部を、略短冊状の第１の負極接点部材と、第２の負極接点部材と、から構成するようにしたから、各接点部の筐体内におけるレイアウトが容易となり、筐体内に狭いスペースに接点部を効果的に配設することができる。
【００３４】
請求項８に係る発明において、第２の正極接点部材と第２の負極接点部材を、それぞれ略Ｓ字形状に屈曲形成してバネ性を付与した構成としたから、第１の正極接点部材と第２の正極接点部材、第１の負極接点部材と第１の負極接点部材との接触性がそれぞれ良好に保たれ、第２の正極接点部材と第２の負極接点部材のへたり等も生じ難い等耐力性にも優れ、電気的接触性を常時確実に維持できると共に、バネ性を付与するため、単純に略Ｌ字形状に折曲した場合と比較して、第２の正極接点部材と第２の負極接点部材との間隔を狭くすることができ、第２の正極接点部材と第２の負極接点部材の筐体における収納溝内におけるレイアウトが容易となり、収納溝内の狭いスペースに第２の正極接点部材と第２の負極接点部材を効果的に配設することができる。
【００３５】
請求項９に係る発明において、カバー部によって、第１の正極接点部材と第１の負極接点部材と電池との絶縁性を確保でき、電気的ショートの発生を確実に防止することができ、筐体内部に配設された略筒状部材のカバー部の内面が円弧面に形成されていることによって、電池の筐体内における移動がスムーズになると共に、電池の収納状態では、電池が前記カバー部の円弧面に抑えられ、電池が確実に保持される。
【００３６】
請求項１０に係る発明において、蓋体を開閉するためのヒンジ部の回動部を回動自由に支持する回動支持部を、筐体の開放部外端に該筐体の外壁の一部を外側に膨出させて拡張形成した溝部内側に形成される支持溝部と、略筒状部材外面の爪部との間に形成される支持溝から構成したので、回動支持部の強度を高めることができる。
【００３７】
請求項１１に係る発明において、ヒンジ部の回動部を、前記支持溝内を軸方向にスライド自由に構成したので、蓋体の開閉動作をスムーズに行うことができる。
【００３８】
請求項１２に係る発明において、筐体内周面と略筒状部材外周面に形成された浅い凹部内面との間には、短冊状の接続片が挟持固定され、該接続片の一端部は前記第１の正極接点部材に接続されると共に、他端部の端縁は筐体の開放端部の端縁から外方に露呈して、蓋体を閉じたときに、該蓋体内端面に装着された正極端子板の接触片部に電気的に接触するように構成したので、電気的接続を確実に行うことができる。
【００３９】
【発明の実施の形態】
以下、添付された図面を参照して本発明の実施の形態を詳述する。
先ず、図１〜図６に基づいてバッテリーケースの全体構造の概略について説明する。
即ち、バッテリーケース１０は、一端が開放された筐体１１と該筐体１１の開放部を開閉する蓋体１２とからなり、電池１３を収納する電池収納室１４を内部に構成する開閉自由なケース本体１５と、前記蓋体１２の内側に装着されて電池収納室１４内に収納された電池１３の正極に接続される正極端子板１６と、前記筐体１１の閉塞端部内側に装着されて電池の負極に接続される負極端子バネ１７と、前記電池収納室１４内において、前記正極端子板１６及び負極端子バネ１７にそれぞれ接続されて、前記ケース本体１５外面部から外方に臨まされる一対の接点部１８，１９と、を含んで構成される。
【００４０】
前記ケース本体１５は、合成樹脂材料により、いわゆるアルカリ電池、マンガン電池の如き一次電池や、充電式の二次電池、或いは、積層電池で単３型電池に略対応した大きさの略筒状に形成される。
前記蓋体１２は、図７に示す外蓋部２０と図８に示す内蓋部２１とから構成される。
そして、外蓋部２０は、短い軸方向長さの円筒形状に形成されており、その内端面の中心部に回転支軸部２２が突出形成されると共に、周方向に沿った所定間隔毎の複数位置（本実施形態では３つの位置）にそれぞれ突起部２３が形成されている。
【００４１】
又、外蓋部２０の内周面の周方向に沿った所定間隔毎の複数位置（本実施形態では３つの位置）にそれぞれ係合突起部２７が形成されている。
尚、この係合突起部２７の先端部内側の面に勾配面２７ａが設けられている。かかる外蓋部２０には、前記正極端子板１６が固定される。これについては後に詳述する。
【００４２】
内蓋部２１は、器状に形成された薄板からなり、前記外蓋部２０の内側で後述する正極端子板固定位置の下側にて所定角度範囲を回動自由となるように装着されており、蓋体１２を開閉するためのヒンジ部の回動部が外周端に形成される。この回動部は、支持片部２４と該支持片部２４の両側から突出する支軸部２５とから構成される。
【００４３】
又、内蓋部２１には、その内端面の中心部に、外蓋部２０の回転支軸部２２が貫通支持される回転支持穴２８が形成されると共に、周方向に沿った所定間隔毎の複数位置（本実施形態では３つの位置）に外蓋部２０の突起部２３がスライド自由に挿入支持される円弧状の溝部２６が形成され、回転支軸部２２の回転支持穴２８への貫通支持と、突起部２３の溝部２６への挿入とによって、外蓋部２０の内側で内蓋部２１が所定角度範囲を回動自由となる。
【００４４】
前記正極端子板１６は、図９に示すように、前記内蓋部２１の回転支持穴２８から突出する外蓋部２０の回転支軸部２２が貫通される孔２９と溝部２６から突出する外蓋部２０の突起部２３が嵌め込まれる孔３０を有する略円形のベース部３１と、該ベース部３１から傾斜して立ち上げられて、電池１３の正極に接続される接続片部３２と、ベース部３１から若干立ち上げられて、後述する第１の正極接点部材の接続片と接触する接触片部３３と、から構成されている。
【００４５】
この場合、前記ベース部３１における接続片部３２の立ち上げ部の両側に切溝３４が形成されている。
又、前記接触片部３３はベース部３１に形成された切溝３５を介して立ち上げられ、その先端部は若干湾曲形成されて接触性を良好とするようになっている。
更に、前記接続片部３２には、両端部に該接続片部３２の係合部３６が形成され、中央部に陥凹部３７が形成された非導電性材料からなるアダプタ３８（図１０参照）が装着され、該アダプタ３８の陥凹部３７から接続片部３２の電池の正極に接続される部分が露出するようになっている。
【００４６】
一方、筐体１１は、一端部が開放された円筒状に形成されており、２つの略半円筒状の分割体１１Ａ，１１Ｂを結合することによって組み立てられる。
筐体１１の閉塞された底部には仕切板３９によって仕切り形成された空間部４０が形成され、この空間部４０には、ピーク的な電流の発生を抑制するためのコンデンサ及び抵抗等の回路部４０Ａが設けられている。
そして、前記負極端子バネ１７は、前記の仕切板３９の空間部４０と反対側の面に装着されている。
【００４７】
かかる筐体１１の開放部の外端には前記ヒンジ部の回動部を回動自由に支持する回動支持部が形成される。この回動支持部は、筐体１１の開放部外端に該筐体１１の外壁の一部を外側に膨出させて拡張形成した溝部４１内側に形成される支持溝部４２と図１１に示す後述の略筒状部材４３外面の爪部４４との間に形成される支持溝４５から構成され、この溝部４１に前記ヒンジ部の回動部の支持片部２４が挿入され、支持溝４５に前記支軸部２５が回転自由に支持される（図１２参照）。
【００４８】
この場合、回動支持部を構成する溝部４１を、筐体１１の開放部外端に該筐体１１の外壁の一部を外側に膨出させて拡張形成したことにより、該回動支持部の強度を高めることができる。
又、前記支持溝４５は筐体１１の軸方向に長く形成され、支軸部２５が上下にスライドできるようになっており、蓋体１２のヒンジ部における上下動が可能で、該蓋体１２のヒンジ部を介した回動がスムーズに行えるようになっている。
【００４９】
かかる筐体１１の内部には、その開放部から一部が外方に突出するように配設され、該突出部分の外周面の周方向に沿った所定間隔毎の複数位置（本実施形態では３つの位置）に傾斜して形成される溝部４６が形成される略筒状部材４３が装着されている（図１１参照）。
この場合、略筒状部材４３の内端部の両側位置に、それぞれ係合孔４７が形成された一対の係合片部４８が一体成形されており、一方の係合片部４８の係合孔４７が筐体１１を構成する一方の分割体１１Ａ内周面に形成された係合突起部（図示せず）に、他方の係合片部４８の係合孔４７が他方の分割体１１Ｂ内周面に形成された係合突起部（図示せず）に係合することによって、略筒状部材４３が筐体１１内側に装着される。
【００５０】
この場合、略筒状部材４３が、両分割体１１Ａ，１１Ｂを結合する役割を奏し、両分割体１１Ａ，１１Ｂの結合強度を高めることができ、筐体１１の強度向上を図れる。前記各溝部４６は、略筒状部材４３の突出部分の先端部における始端部が開放され、終端部が閉塞されると共に、略筒状部材４３の突出部分が上方に、底部が下方となるように垂直に置いたときに、該始端部が高位、終端部が低位となるように傾斜して形成されている。そして、各溝部４６の始端部から挿入された前記外蓋部２０の各係合突起部２７が該外蓋部２０の回動によってスライド移動して終端部に到るようになっている。ここで、一つの溝部４６の終端部の手前部分には、図１３に示すように、傾斜した凸部４９が形成されており、外蓋部２０の一つの係合突起部２７がこの凸部４９を乗り越えることで、溝部４６の終端部にて凸部４９に係合し、蓋体１２のロックを行うようになっている。
【００５１】
この場合、略筒状部材４３の溝部４６形成側端部の一部は図１１（Ｂ）に示すように切除部５０となっており、該略筒状部材４３の溝部４６形成側端部はその径が収縮するように弾性変形可能で、この弾性変形時の復元バネ力が働く構成となっているため、上記のように、一つの係合突起部２７が一つの凸部４９を乗り越えようとする際には、略筒状部材４３の溝部４６形成側端部はその径が収縮するように弾性変形して、この乗り越えを可能とし、乗り越えた後は、復元バネ力で元の径に復帰して、一つの係合突起部２７が溝部４６の終端部にて凸部４９に係合するようになっている。
【００５２】
一方、図１４に示すように、正極端子板１６に接続される接点部１８は、一端部に正極端子板１６に接続される接続部を有し、筐体１１内側に該筐体１１内面に沿って配設され固定される略短冊状の第１の正極接点部材５１と、筐体１１の外面部に外方に拡張形成された収納溝５２に収納配置され、一端部が該第１の正極接点部材５１に接触され、他端部が前記収納溝５２から筐体１１に形成された孔５３を介して筐体１１外方に臨まされる第２の正極接点部材５４と、から構成される。
【００５３】
この場合、前記第１の正極接点部材５１の接続部は、別体の短冊状の接続片５５から構成されている。
この接続片５５は、筐体１１内周面と略筒状部材４３外周面に形成された浅い凹部内面との間に挟持固定され、この状態で一端部の端縁が筐体１１の開放端部の端縁から外方に露呈して、蓋体１２を閉じたときに、該蓋体１２内端面に装着された正極端子板１６の接触片部３３に電気的に接触するようになっている。
【００５４】
又、前記負極端子バネ１７に接続される接点部は、一端部に負極端子バネ１７に接続される接続部を有し、筐体１１内側に該筐体１１内面に沿って配設され固定される略短冊状の第１の負極接点部材５６と、前記収納溝５２に収納配置され、一端部が該第１の負極接点部材５６に接触され、他端部が前記収納溝５２から筐体１１に形成された孔５７を介して筐体１１外方に臨まされる第２の負極接点部材５８と、から構成される。
【００５５】
この場合、前記第２の正極接点部材５４と第２の負極接点部材５８は、それぞれ図１５に示すように略Ｓ字形状に屈曲形成されてバネ性が付与されている。
又、前記略筒状部材４３は、図１１に示すように、筐体１１からの突出部分と反対側端部に筐体１１内部に該筐体１１の軸線方向に沿って延び、筐体１１内部の前記第１の正極接点部材５１と第１の負極接点部材５６をカバーするカバー部５９を有しており、このカバー部５９の内面には円弧面５９ａが形成され、第１の正極接点部材５１と第１の負極接点部材５６に対面する面に勾配面５９ｂが形成されている。
【００５６】
尚、筐体１１の収納溝５２には、回転体６０によって回転されるネジ６１が外方に突出して設けられており、このネジ６１によってバッテリーケース１０を電子機器に着脱できるようになっており、バッテリーケース１０の電子機器への装着時には、前記孔５３を介して筐体１１外方に臨まされる第２の正極接点部材５４の端部と第２の負極接点部材５８の端部がそれぞれ電子機器側の電源供給端子に接続される。
【００５７】
かかる構成のバッテリーケース１０において、先ず蓋体１２を上方から見て半時計方向に回動すると、蓋体１２が筐体１１から離脱し、該筐体１１の開放部が開かれる。
この状態で、電池１３を下側が負極となるようにして、筐体１１内部に落とし込んで収納させる。
【００５８】
次に、蓋体１２を筐体１１の開放端部に被せてから、上方から見て時計方向に回動すると、外蓋部２０の各係合突起部２７が筐体１１の開放部から外方に突出する略筒状部材４３の外周面の各溝部４６に挿入される。即ち、各溝部４６の始端部から挿入された外蓋部２０の各係合突起部２７が該外蓋部２０の回動によって各溝部４６の終端部までスライド移動する。この場合、一つの係合突起部２７がスライド移動により凸部４９を乗り越えようとする際に、略筒状部材４３の溝部４６形成側端部は、その径が収縮するように弾性変形して乗り越えを可能とし、乗り越えた後に、略筒状部材４３の溝部４６形成側端部の復元バネ力により元の径に復帰し、一つの係合突起部２７が溝部４６の終端部にて凸部４９に係合して前記蓋体１２のロックが行われる。
即ち、蓋体１２はねじ式に筐体１２側に嵌合され、ねじを緩める如く蓋体１２を回動することにより筐体１１から外れ（ヒンジ部にて繋がっているため分離するわけではない）、ねじを締める如く蓋体１２を回動することにより筐体１１に嵌合固定（ロック）される。
【００５９】
このように蓋体１２を閉じた状態では、電池１３の負極が負極端子バネ１７に圧接し、正極が正極端子板１６の接続片部３２に圧接する。
この場合、接続片部３２は、正極端子板１６のベース部３１から傾斜して立ち上げられており、バネ性が付与されているため、電池１３の正極に押されて圧縮変形し、このときのバネの反発力で該電池１３の正極に確実に圧接される。
【００６０】
以上説明したバッテリーケース１０によれば、次のような利点がある。
バッテリーケース１０の筐体１１内部への電池１３の出し入れを、筐体１１の軸方向の端部の開放部から行うようにしたから、電池１３を筐体１１内部に落とし込むことにより、電池１３の収納が容易に行え、取り出しも、筐体１１の開放部を下側にすることによって、容易に行うことができる。
この場合、筐体１１内部に配設された略筒状部材４３のカバー部５９の内面が円弧面５９ａに形成されていることによって、電池１３の筐体１１内における移動がスムーズになると共に、電池１３の収納状態では、電池１３が前記カバー部５９の円弧面５９ａに抑えられ、電池１３が確実に保持される。
【００６１】
即ち、従来のバッテリーケースのように電池を横にし、かつ斜めにした状態で、先ず、電池の一端の負極を負極端子バネに押し当てて圧縮変形させ、この状態で、電池の他端を押し下げて、筐体部内に挿入し、他端の正極を正極端子板に当接して、電池をセットする必要がなく、電池１３のセットがワンタッチで行え、電池１３のセット性に優れ、電池１３の取り出し性、保持性も良好となる。
【００６２】
加えて、蓋体１２をねじ式で筐体１１の開放部に装着・離脱させる構成としたから、蓋体１２を開き易く、蓋体１２をねじ式に筐体１２側に嵌合した際には、外蓋部２０の一つの係合突起部２７が溝部４６の終端部にて凸部４９に係合して蓋体１２のロックを行うようにしたから、ロック状態が確実であり、蓋体１２が予期せずに簡単に開くようなことがなく、電池１３が離脱するおそれがない。
【００６３】
この蓋体１２をねじ式で筐体１１の開放部に装着・離脱させる構成において、特に、外蓋部２０の係合突起部２７の先端部内側の面に勾配面２７ａを設けるようにしたため、係合突起部２７が凸部４９を乗り越え易く、また、係合突起部２７が凸部４９を乗り越えてこれと係合した状態である蓋体１２ロック時は、この係合が外れ難いという利点がある。
【００６４】
尚、蓋体をねじ式で筐体の開放部に装着・離脱させる構成とした場合、蓋体を筐体の開放部から開いた場合、蓋体が筐体から離脱するのが一般的である。
しかし、このように、蓋体が筐体から離脱したのでは、蓋体の紛失等が生じ、非常に思わしくない。
【００６５】
本発明は、これを克服するため、蓋体１２を正極端子板１６が固定された外蓋部２０と、該外蓋部２０の内側で前記正極端子板１６の固定位置下側にて所定角度範囲を回動自由となるように装着され、蓋体１２を開閉するためのヒンジ部の回動部が外周端に形成された内蓋部２１とから構成することによって、蓋体１２を筐体１１とヒンジ結合しつつ、ねじ式による着脱動作、即ち、蓋体１２の回動を可能にすることができたのである。
【００６６】
又、電池１３のセット時に電池１３の挿入位置が常に適正となるため、正極端子板１６及び負極端子バネ１７が変形するおそれもなく、電池１３の端子への接触性に支障をきたさず、接触不良を引き起こすことがない。
特に、接続片部３２は、正極端子板１６のベース部３１から傾斜して立ち上げられており、バネ性が付与されているため、電池１３の正極に押されて圧縮変形し、このときのバネの反発力で該電池１３の正極に確実に圧接される。
【００６７】
又、ベース部３１における接続片部３２の立ち上げ部の両側に切溝３４が形成されているため、上記のバネの反発力が強く、かつ、永年使用によってもこのバネのへたりが生じ難い等耐力性に優れ、接触不良を引き起こし難い。
更に、接続片部３２には、非導電性材料からなるアダプタ３８が装着され、接続片部３２のアダプタ３８の陥凹部３７から露呈する部分が電池１３の正極に接触する。
即ち、接続片部３２の電池１３の正極と接触する部分は奥まったところにあり、電池１３の突出した正極は接触可能であるが、面である負極は接触不可能である。
【００６８】
このことは、電池１３の正負を逆にして筐体１１内に電池を誤挿入した場合であっても、電池１３の負極が接続片部３２とは接触状態とならず、逆接防止の利点を生む。
更に、上記のように、正極端子板１６の接続片部３２と電池１３の正極との接触が確実に行われる結果、電子機器の振動等によって筐体１１の内側にて電池１３が動いた場合であっても、電池１３が一瞬たりとも、正極端子板１６及び負極端子バネ１７から離れるおそれがなく、特に、近年のＣＤ（コンパクトディスク）やＭＤ（ミニディスク）等のようにデジタル方式のディスクプレーヤ装置にあっては、電池１３の一瞬の非接触状態がなくなる結果、音が飛ぶ等、音の再生に支障をきたさず、常に的確な再生状態を得られる。
【００６９】
更に、上記の実施形態によると、次のような利点を有する。
即ち、正極端子板１６に接続される接点部１８を、略短冊状の第１の正極接点部材５１と、第２の正極接点部材５４と、から構成し、負極端子バネ１７に接続される接点部を、略短冊状の第１の負極接点部材５６と、第２の負極接点部材５８と、から構成するようにしたから、各接点部の筐体１１内におけるレイアウトが容易となり、筐体１１内に狭いスペースに接点部を効果的に配設することができる。
【００７０】
特に、第２の正極接点部材５４と第２の負極接点部材５８を、それぞれ略Ｓ字形状に屈曲形成してバネ性を付与した構成としたから、第１の正極接点部材５１と第２の正極接点部材５４、第１の負極接点部材５６と第１の負極接点部材５８との接触性がそれぞれ良好に保たれ、第２の正極接点部材５４と第２の負極接点部材５８のへたり等も生じ難い等耐力性にも優れ、電気的接触性を常時確実に維持できると共に、バネ性を付与するため、単純に略Ｌ字形状に折曲した場合と比較して、第２の正極接点部材５４と第２の負極接点部材５８との間隔を狭くすることができ、第２の正極接点部材５４と第２の負極接点部材５８の筐体１１における収納溝５２内におけるレイアウトが容易となり、収納溝５２内の狭いスペースに第２の正極接点部材５４と第２の負極接点部材５８を効果的に配設することができる。
【００７１】
又、略筒状部材４３は、突出部分と反対側端部に筐体１１内部に該筐体１１の軸線方向に沿って延び、筐体１１内部の前記第１の正極接点部材５１と第１の負極接点部材５６をカバーするカバー部５９を設けるようにしたから、第１の正極接点部材５１と第１の負極接点部材５６と電池１３との絶縁性を確保でき、電気的ショートの発生を確実に防止することができる。
【００７２】
特に、カバー部４９の第１の正極接点部材５１と第１の負極接点部材５６に対面する面に勾配面５９ｂを形成するようにしたから、該カバー部４９を第１の正極接点部材５１と第１の負極接点部材５６に近接して配しても、勾配面５９ｂ形成部がこれらの接点部材５１，５６の逃げ部となり、筐体１１内の狭いスペース内に第１の正極接点部材５１と第１の負極接点部材５６とカバー部４９とを共に効果的に配設することができる。
【００７３】
【発明の効果】
以上説明したように、請求項１に係る発明によれば、バッテリーケースにおける蓋部の開閉構造、正負の端子の構造等の改良を行って、電池の着脱性の向上、電池の装着状態の安定化を図ると共に、接触不良防止、電池の逆方向挿入時の逆接の発生防止等を図って電気的接続の信頼性を高める等、製品としての信頼性を向上し得るバッテリーケースを提供することができる。
【００７４】
請求項２に係る発明によれば、外蓋部内端面には、周方向に沿った所定間隔毎の複数位置に突起部を有し、内蓋部には周方向に沿った所定間隔毎の複数位置に前記突起部がスライド自由に挿入支持される円弧状の溝部が形成され、外蓋部の内側で内蓋部が所定角度範囲を回動自由となるように構成したので、簡単な構成によって、外蓋部の内側で内蓋部を所定角度範囲をスムーズに回動させることができ、蓋体の回動動作を確実かつ容易に行うことができる。
【００７５】
請求項３に係る発明によれば、正極端子板を、内蓋部の溝部から突出する外蓋部の突起部が嵌め込まれる孔を有する略円形のベース部と、該ベース部から傾斜して立ち上げられて、電池の正極に接続される接続片部と、から構成したので、正極端子板と電池の正極との接触性を確実に維持することができる。
【００７６】
請求項４に係る発明によれば、ベース部における接続片部の立ち上げ部の両側に切溝を形成するように構成したので、接続片部のバネの反発力を強くでき、かつ、永年使用によってもこのバネのへたりが生じ難い等耐力性に優れ、接触不良を引き起こし難いという利点がある。
【００７７】
請求項５に係る発明によれば、接続片部には、両端部に該接続片部の係合部が形成され、中央部に陥凹部が形成された非導電性材料からなるアダプタが装着され、該アダプタの陥凹部から接続片部の電池の正極に接続される部分が露出する構成としたので、池の正負を逆にして筐体内に電池を誤挿入した場合であっても、逆接のおそれがない。
【００７８】
請求項６に係る発明によれば、外蓋部の係合突起部の先端部内側の面に勾配を設けるように構成したので、外蓋部の係合突起部と略筒状部材側の溝部の凸部の係合を確実かつスムーズに行うことができる。
【００７９】
請求項７に係る発明によれば、正極端子板に接続される接点部を、一端部に正極端子板に接続される接続部を有し、筐体内側に該筐体内面に沿って配設され固定される略短冊状の第１の正極接点部材と、筐体の外面部に外方に拡張形成された収納溝に収納配置され、一端部が該第１の正極接点部材に接触され、他端部が前記収納溝から筐体外方に臨まされる第２の正極接点部材と、から構成される一方、負極端子バネに接続される接点部を、一端部に負極端子バネに接続される接続部を有し、筐体内側に該筐体内面に沿って配設され固定される略短冊状の第１の負極接点部材と、前記収納溝に収納配置され、一端部が該第１の負極接点部材に接触され、他端部が前記収納溝から筐体外方に臨まされる第２の負極接点部材と、から構成されるように構成したので、各接点部の筐体内におけるレイアウトが容易となり、筐体内に狭いスペースに接点部を効果的に配設することができる。
【００８０】
請求項８に係る発明によれば、第２の正極接点部材と第２の負極接点部材を、それぞれ略Ｓ字形状に屈曲形成されてバネ性が付与された構成としたので、第１の正極接点部材と第２の正極接点部材、第１の負極接点部材と第１の負極接点部材との接触性がそれぞれ良好に保たれ、第２の正極接点部材と第２の負極接点部材のへたり等も生じ難い等耐力性にも優れ、電気的接触性を常時確実に維持できると共に、第２の正極接点部材と第２の負極接点部材の筐体における収納溝内におけるレイアウトが容易となり、収納溝内の狭いスペースに第２の正極接点部材と第２の負極接点部材を効果的に配設することができる。
【００８１】
請求項９に係る発明によれば、略筒状部材を、突出部分と反対側端部に筐体内部に該筐体の軸線方向に沿って延び、筐体内部の第１の正極接点部材と第２の負極接点部材をカバーするカバー部を有し、該カバー部の第１の正極接点部材と第２の負極接点部材に対面する面に勾配面が、筐体内部側に面する側に円弧面を、それぞれ形成するように構成したので、第１の正極接点部材と第１の負極接点部材と電池との絶縁性を確保でき、電気的ショートの発生を確実に防止することができ、電池の筐体内における移動がスムーズになると共に、電池の保持を確実に行うことができる。
【００８２】
請求項１０に係る発明によれば、回動支持部を、筐体の開放部外端に該筐体の外壁の一部を外側に膨出させて拡張形成した溝部内側に形成される支持溝部と、略筒状部材外面の爪部との間に形成される支持溝から構成したので、回動支持部の強度を高めることができる。
【００８３】
請求項１１に係る発明によれば、蓋体ヒンジ部の回動部を、前記支持溝内を軸方向にスライド自由に構成したので、蓋体の開閉動作をスムーズに行うことができる。
【００８４】
請求項１２に係る発明によれば、筐体内周面と略筒状部材外周面に形成された浅い凹部内面との間には、短冊状の接続片が挟持固定され、該接続片の一端部は前記第１の正極接点部材に接続されると共に、他端部の端縁は筐体の開放端部の端縁から外方に露呈して、蓋体を閉じたときに、該蓋体内端面に装着された正極端子板の接触片部に電気的に接触するように構成したので、電気的接続を確実に行うことができる。
【００８５】
【図面の簡単な説明】
【図１】本発明に係るバッテリーケースの一実施形態を示す図で、（Ａ）はバッテリーケースの正面図、（Ｂ）はその左側面図、
【図２】同じく、（Ａ）は右側面図、（Ｂ）は平面図
【図３】同上のバッテリーケースの筐体を示す図で、（Ａ）は背面図、（Ｂ）はその右側面図
【図４】蓋体を外した状態を示す底面図
【図５】筐体内部を示す平面断面図
【図６】蓋体側の構造を示す図で、（Ａ）は平面図、（Ｂ）はその右側面図
【図７】外蓋部の構造を示す図で、（Ａ）は平面図、（Ｂ）はその右側面図、（Ｃ）は（Ａ）中Ａ−Ａ矢示断面図
【図８】内蓋部の構造を示す図で、（Ａ）は平面図、（Ｂ）はその右側面図
【図９】正極端子板の構造を示す図で、（Ａ）は背面図、（Ｂ）はその右側面図
【図１０】アダプタの構造を示す図で、（Ａ）は正面図、（Ｂ）はその左側面図
【図１１】略筒状部材の構造を示す図で、（Ａ）は正面図、（Ｂ）はその一部断右側面図、（示す）は底面図
【図１２】蓋体のヒンジ部の構造を示す縦断面図
【図１３】略筒状部材の溝部の構造を示す図で、（Ａ）は正面図、（Ｂ）は（Ａ）中Ｂ−Ｂ矢示断面図
【図１４】筐体内部の詳細を示す縦断面図
【図１５】（Ａ）は第２の正極接点部材の構成を示す正面図、（Ｂ）は第２の負極接点部材の構成を示す正面図
【図１６】従来のバッテリーケースの構成を透視して示す平面図
【図１７】同上のバッテリーケースの構成を透視して示す正面図
【符号の説明】
１０バッテリーケース
１１筐体
１２蓋体
１３電池
１４電池収納室
１５ケース本体
１６正極端子板
１７負極端子バネ
１８，１９接点部
２０外蓋部
２１内蓋部
２３突起部
２４支持片部
２５支軸部
２６溝部
２７係合突起部
２８回転支持穴
３２接続片部
３３接触片部
３８アダプタ
４３略筒状部材
５１第１の正極接点部材
５２収納溝
５４第２の正極接点部材
５５接続片
５６第１の負極接点部材
５８第２の負極接点部材
５９カバー部[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a battery case that is used by being housed in a device main body portion in which a battery is housed and to which power is supplied by the battery, and more particularly to a technique for improving the quality of a product as a battery case.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, electronic devices that are used as portable recording / reproducing devices or sound reproducing devices, such as so-called portable tape recorder devices, disc player devices, video camera devices, and radio receiver devices have been proposed.
Such an electronic device is configured to use a small battery as a battery for supplying driving power in order to reduce the size of the apparatus.
As a small battery, for example, a rechargeable battery (secondary battery) such as a so-called button battery such as an alkaline battery or a lithium battery configured in a small can shape, or a so-called Ni-Cd battery formed in a thin plate shape. )
The small battery as described above is used by being housed in the outer casing of the electronic device.
[0003]
By the way, since a small battery as described above has a small amount of electricity that can be discharged, when an electronic device is used continuously for a long time, it is inconvenient because it is necessary to replace the battery during use.
For this reason, an electronic device has been proposed in which a battery case containing a battery can be detachably attached to the outer side of the outer housing.
This battery case has a housing portion for housing a so-called AA or AA type dry battery, and a pair of contacts connected to the outer peripheral surface portion of the housing portion corresponding to the positive and negative electrodes of the dry cell. Has a part.
[0004]
Such a battery case is attached to the outer casing of the electronic device to connect each contact portion to the power supply terminal of the electronic device.
That is, the electronic device is supplied with power from the dry battery via each contact portion. This dry battery is a primary battery such as a so-called alkaline battery or a manganese battery, a rechargeable secondary battery, a laminated battery, or the like, and has a larger volume than the above-described small battery. The electronic device can be continuously used for a long time by being supplied with power from a dry battery.
[0005]
As such a battery case, for example, a battery case disclosed in Japanese Patent Laid-Open No. 8-111213 is known.
This battery case is configured as shown in FIGS.
That is, the battery case has a casing 1 that stores the battery. The casing 1 has a lid 2 at the bottom, and the lid 2 can be opened and closed via a hinge (not shown) on one side. The battery can be inserted into and removed from the unit 1.
[0006]
The housing 1 has a battery storage chamber 3 in which a battery is stored. The battery storage chamber 3 is connected to a positive terminal plate 4 connected to the positive electrode of the battery and a negative electrode of the battery. The negative terminal spring 5 is disposed so as to be distributed to both end sides.
A pair of contact portions 6, 7 facing outward is disposed on the outer peripheral portion of the housing portion 1. These contact parts 6 and 7 are connected corresponding to the positive and negative electrodes of the battery. That is, one contact portion 6 is connected to the positive terminal plate 4 in the housing portion 1. Further, the other contact portion 7 is connected to the negative terminal spring 5 in the housing portion 1.
[0007]
[Problems to be solved by the invention]
However, such a conventional battery case has the following problems.
That is, in the conventional battery case, the lower surface of the housing 1 for storing the battery is a lid 2, and the lid 2 can be opened and closed via a hinge on one side. By opening the lid, the battery can be attached to and removed from the housing 1.
[0008]
However, in such a battery mounting and removal structure, in a state where the battery is placed sideways and inclined, first, the negative electrode at one end of the battery is pressed against the negative terminal spring 5 to be compressed and deformed. The other end of the battery is pushed down and inserted into the battery storage chamber 3, and the positive electrode at the other end is brought into contact with the positive electrode terminal plate 4 to set the battery. The battery is poor and the battery can be taken out easily.
[0009]
In addition, since the lid portion 2 is configured to be locked in a closed state by engagement of a claw and a groove with respect to the housing portion 1, the lid portion 2 is difficult to open, and due to wear of the claw and the groove, etc. Conversely, the locked state of the lid portion 2 becomes loose, the lid portion 2 can easily open unexpectedly, and the battery may be detached.
Also, if the battery is not properly oriented when the battery is set and the negative electrode at one end of the battery is not properly pressed against the negative terminal spring 5, the negative terminal spring 5 is deformed and subsequently contacts the battery terminal. It interferes with sex and causes poor contact.
[0010]
Further, since the negative terminal spring 5 can be in contact with the positive electrode of the battery and the positive terminal plate 18 can be in contact with the negative electrode of the battery, there is a risk of reverse connection when the battery is incorrectly inserted.
Furthermore, since the conventional positive electrode terminal plate 4 is formed in a simple plate shape, there are the following problems.
That is, the battery may move inside the casing due to vibrations of the electronic device, and the battery may be separated from the positive terminal plate 4 for a moment due to compression of the negative terminal spring 5.
[0011]
In general, if the electronic device is of an analog type, there is no problem in the non-contact state of the battery as described above.
However, in a digital disc player device such as a recent CD (compact disc) or MD (mini disc), it becomes a big problem in a non-contact state of a battery as described above, and a sound flies. This interferes with sound playback.
[0012]
Accordingly, the present invention has been made to solve the above-described problems, and improved the battery detachability by improving the lid opening / closing structure and the positive / negative terminal structure in the battery case. Battery case that can improve the reliability of the product, such as improving the reliability of the electrical connection by stabilizing the mounting state of the battery and preventing the occurrence of contact failure and the reverse connection when the battery is inserted in the reverse direction. The purpose is to provide.
[0013]
[Means for Solving the Problems]
  For this reason, the invention according to claim 1 is a freely openable / closable case comprising a housing having one end opened and a lid for opening and closing the open portion of the housing, and constituting a battery housing chamber for housing the battery therein. A main body, a positive terminal plate that is attached to the inside of the housing and connected to the positive electrode of the battery housed in the battery housing chamber, and is attached to the inside of the closed end of the housing and connected to the negative electrode of the battery A battery configured to include a negative terminal spring and a pair of contact portions that are respectively connected to the positive terminal plate and the negative terminal spring and face outward from the outer surface of the case body in the battery housing chamber. A case,
  The lid body has engagement protrusions at a plurality of positions at predetermined intervals along the circumferential direction of the inner circumferential surface, and an outer lid portion to which the positive electrode terminal plate is fixed, and the inner side of the outer lid portion. A hinge part for opening and closing the lid body, which is mounted so as to be freely rotatable within a predetermined angle range below the fixed position of the positive terminal plate, and comprises an inner lid part formed at the outer peripheral end. And
  On the outer end of the opening part of the housing, a rotation support part for freely supporting the rotation part of the hinge part is formed, and inside thereof, a part is outward from the opening part. It is arranged so as to protrude, and is inclined at a plurality of positions at predetermined intervals along the circumferential direction of the outer peripheral surface of the protruding portion.didA substantially cylindrical member in which a groove is formed is attached,
  The groove-formation-side end of the substantially cylindrical member has a cut-out portion formed in a part thereof, and is configured to be elastically deformable so that its diameter contracts.The groove portion is open at the leading end portion of the protruding portion of the substantially cylindrical member, and the end portion of one groove portionConvex part in front ofThe engaging projections of the outer lid portion inserted from the starting end portion are rotated by the rotation of the outer lid portion.To the end of each grooveSlide, and one engaging protrusion is located at the end of the one groove.By getting over the convex part, it engages with the convex part and locks the lid.It is characterized by being configured.
[0014]
According to a second aspect of the present invention, the inner end surface of the outer lid portion has protrusions at a plurality of predetermined intervals along the circumferential direction, and the inner lid portion has a plurality of positions at predetermined intervals along the circumferential direction. An arc-shaped groove portion is formed in which the projection portion is slidably inserted and supported, and the inner lid portion is freely rotatable within a predetermined angle range inside the outer lid portion.
[0015]
According to a third aspect of the present invention, the positive terminal plate includes a substantially circular base portion having a hole into which a projection portion of the outer lid portion protruding from the groove portion of the inner lid portion is fitted, and an inclination from the base portion. And a connecting piece portion connected to the positive electrode of the battery.
[0016]
The invention according to claim 4 is characterized in that kerfs are formed on both sides of the rising portion of the connection piece in the base portion.
[0017]
In the invention according to claim 5, the connection piece portion is mounted with an adapter made of a non-conductive material in which an engagement portion of the connection piece portion is formed at both ends and a recess is formed in the central portion. A portion of the connecting piece connected to the positive electrode of the battery is exposed from the recessed portion of the adapter.
[0018]
The invention according to claim 6 is characterized in that a gradient is provided on the inner surface of the distal end of the engaging projection of the outer lid.
[0019]
In the invention according to claim 7, the contact portion connected to the positive terminal plate has a connecting portion connected to the positive terminal plate at one end, and is arranged along the inner surface of the casing inside the casing. A substantially strip-shaped first positive electrode contact member to be fixed, and a storage groove that is extended outwardly on the outer surface portion of the housing, and one end portion of which is in contact with the first positive electrode contact member. A second positive electrode contact member having an end portion facing the outside of the housing from the storage groove,
The contact portion connected to the negative electrode terminal spring has a connection portion connected to the negative electrode terminal spring at one end portion, and has a substantially strip-like shape that is disposed and fixed along the inner surface of the housing inside the housing. 1 negative contact member, and a second negative contact member that is housed and disposed in the housing groove, has one end in contact with the first negative contact member, and the other end facing the housing from the housing groove. It is characterized by comprising.
[0020]
According to an eighth aspect of the present invention, the second positive electrode contact member and the second negative electrode contact member are each bent into a substantially S shape and imparted with a spring property.
[0021]
According to a ninth aspect of the present invention, the substantially cylindrical member extends along the axial direction of the casing at the end opposite to the protruding portion, and extends along the axial direction of the casing. A cover portion that covers the second negative electrode contact member; a slope surface on a surface facing the first positive electrode contact member and the second negative electrode contact member of the cover portion; Each of the circular arc surfaces is formed.
[0022]
  The invention which concerns on Claim 10 is the saidSupports the rotating part of the hinge part for opening and closing the lid freely.The rotation support part includes a support groove part formed inside a groove part formed by expanding a part of the outer wall of the case to the outside at the outer end of the open part of the case, and a claw part on the outer surface of the substantially cylindrical member It is characterized by comprising a support groove formed between the two.
[0023]
  The invention according to claim 11 is:The hinge partThe rotating portion is configured to freely slide in the axial direction in the support groove.
[0024]
In the invention according to claim 12, a strip-shaped connection piece is sandwiched and fixed between the inner peripheral surface of the casing and the inner surface of the shallow concave portion formed on the outer peripheral surface of the substantially cylindrical member, and one end portion of the connection piece is The edge of the other end is exposed to the outside from the edge of the open end of the housing and is connected to the first positive electrode contact member. It electrically contacts the contact piece of the attached positive electrode terminal plate.
[0025]
According to this configuration, in the invention according to claim 1, when the lid is rotated in the counterclockwise direction as viewed from above, for example, the lid is detached from the casing, and the opening portion of the casing is opened.
In this state, the battery is dropped into the housing and stored with the lower side serving as the negative electrode.
[0026]
  Next, when the cover is put on the open end of the casing and then rotated clockwise as viewed from above, each engagement protrusion of the outer cover protrudes outward from the open section of the casing. It inserts in each groove part of the outer peripheral surface of a cylindrical member. That is, each engaging protrusion of the outer lid inserted from the starting end of each groove is rotated by the rotation of the outer lid.To the end of each grooveSlide movementTo do. In this case, when one engaging projection is about to move over the convex portion by sliding movement, the groove forming side end portion of the substantially cylindrical member is elastically deformed so that the diameter thereof contracts, and can be overcome. After getting over, it returns to the original diameter by the restoring spring force of the groove forming side end of the substantially cylindrical member,One engaging projection is the end of the grooveEngage with the projection atLock is performed.
[0027]
In other words, the lid is screwed into the housing, and is removed from the housing by rotating the lid so as to loosen the screw (it is not separated because it is connected by a hinge), and the screw is tightened Thus, the lid is fitted and fixed to the casing by rotating the lid.
In this state where the lid is closed, the negative electrode of the battery is pressed against the negative terminal spring and the positive electrode is pressed against the positive terminal plate.
[0028]
In the invention which concerns on Claim 2, an inner cover part comes to rotate smoothly within the predetermined angle range inside an outer cover part by simple structure.
[0029]
In the invention according to claim 3, the connecting piece is inclined and raised from the base portion of the positive electrode terminal plate, and is provided with a spring property. Therefore, the connecting piece is compressed and deformed by being pushed by the positive electrode of the battery. It is surely pressed against the positive electrode of the battery by the repulsive force of the spring.
[0030]
In the invention according to claim 4, since the cut groove is formed on both sides of the rising portion of the connecting piece in the base portion, the spring of the connecting piece has a strong repulsive force. It has excellent proof stress, such as being less likely to sag, and hardly causes poor contact.
[0031]
In the invention which concerns on Claim 5, the part which contacts the positive electrode of the battery of a connection piece part became deep by attaching the adapter which consists of a nonelectroconductive material in which the recessed part was formed in the connection piece part to the connection piece part. However, the protruding positive electrode of the battery can be contacted, but the negative electrode which is the surface cannot be contacted.
This means that even when the battery is inserted in the housing with the polarity of the battery reversed, the negative electrode of the battery is not in contact with the connection piece portion, and the advantage of preventing reverse connection is obtained.
[0032]
  In the invention which concerns on Claim 6, since the slope is provided in the surface inside the front-end | tip part of the engagement protrusion part of an outer cover part, an engagement protrusion part isConvexEasy to get over,In addition, when the lid locks in a state where the engaging protrusion has overtaken the protrusion and is engaged therewith,There is an advantage that this engagement is difficult to disengage.
[0033]
In the invention which concerns on Claim 7, the contact part connected to a positive electrode terminal board is comprised from a substantially strip-shaped 1st positive electrode contact member and a 2nd positive electrode contact member, and is connected to a negative electrode terminal spring. Since the contact portion is composed of a first strip-shaped first negative electrode contact member and a second negative electrode contact member, the layout of each contact portion within the housing is facilitated, and the space within the housing is reduced. The contact portion can be effectively arranged.
[0034]
In the invention according to claim 8, since the second positive electrode contact member and the second negative electrode contact member are each formed into a substantially S-shape and are provided with spring properties, the first positive electrode contact member and The contact between the second positive electrode contact member, the first negative electrode contact member and the first negative electrode contact member is maintained well, and the second positive electrode contact member and the second negative electrode contact member are also sagged. Compared with the case where it is simply bent into a substantially L-shape, the second positive contact member The interval between the second negative electrode contact member and the second negative electrode contact member can be narrowed, and the layout of the second positive electrode contact member and the second negative electrode contact member in the housing groove in the housing is facilitated. The positive electrode contact member and the second negative electrode contact member are effectively disposed. It is possible.
[0035]
In the invention according to claim 9, the cover portion can ensure insulation between the first positive electrode contact member, the first negative electrode contact member, and the battery, and can reliably prevent the occurrence of an electrical short circuit. The inner surface of the cover portion of the substantially cylindrical member disposed inside the body is formed into an arcuate surface, so that the battery can move smoothly within the housing, and in the battery storage state, the battery Thus, the battery is securely held.
[0036]
  In the invention according to claim 10,Supports the rotating part of the hinge part for opening and closing the lid freely.A support groove portion formed inside a groove portion formed by expanding a rotation support portion by expanding a part of the outer wall of the housing outward at the outer end of the open portion of the housing, and a claw portion on the outer surface of the substantially cylindrical member , The strength of the rotation support portion can be increased.
[0037]
  In the invention according to claim 11,Hinge partSince the rotating part is configured to freely slide in the support groove in the axial direction, the lid can be opened and closed smoothly.
[0038]
In the invention according to claim 12, a strip-shaped connection piece is sandwiched and fixed between the inner peripheral surface of the housing and the inner surface of the shallow concave portion formed on the outer peripheral surface of the substantially cylindrical member, and one end portion of the connection piece is Connected to the first positive electrode contact member, and the edge of the other end is exposed outwardly from the edge of the open end of the housing, and is attached to the end face of the lid when the lid is closed Since it is configured to be in electrical contact with the contact piece portion of the positive electrode terminal plate, electrical connection can be reliably performed.
[0039]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
First, an outline of the overall structure of the battery case will be described with reference to FIGS.
That is, the battery case 10 includes a housing 11 having one end opened and a lid 12 that opens and closes an open portion of the housing 11, and is freely openable and closable that constitutes a battery storage chamber 14 that stores a battery 13 therein. A case body 15, a positive terminal plate 16 that is attached to the inside of the lid 12 and is connected to the positive electrode of the battery 13 accommodated in the battery storage chamber 14, and an inside of the closed end of the housing 11. The negative terminal spring 17 connected to the negative electrode of the battery and the positive electrode terminal plate 16 and the negative terminal spring 17 are respectively connected to the positive electrode terminal plate 16 and the negative terminal spring 17 in the battery storage chamber 14 and face outward from the outer surface of the case body 15. And a pair of contact portions 18, 19.
[0040]
The case body 15 is made of a synthetic resin material into a substantially cylindrical shape having a size substantially corresponding to that of a primary battery such as an alkaline battery or a manganese battery, a rechargeable secondary battery, or a stacked battery. It is formed.
The lid body 12 includes an outer lid portion 20 shown in FIG. 7 and an inner lid portion 21 shown in FIG.
And the outer cover part 20 is formed in the cylindrical shape of short axial direction length, and while the rotation support shaft part 22 protrudes in the center part of the inner end surface, it is every predetermined interval along the circumferential direction. Projections 23 are formed at a plurality of positions (three positions in the present embodiment).
[0041]
In addition, engagement protrusions 27 are formed at a plurality of positions (three positions in the present embodiment) at predetermined intervals along the circumferential direction of the inner peripheral surface of the outer lid part 20.
A slope surface 27 a is provided on the inner surface of the distal end portion of the engagement protrusion 27. The positive terminal plate 16 is fixed to the outer lid portion 20. This will be described in detail later.
[0042]
The inner lid portion 21 is made of a thin plate formed in a vessel shape, and is mounted on the inner side of the outer lid portion 20 so as to be freely rotatable within a predetermined angle range below a positive electrode terminal plate fixing position to be described later. And the rotation part of the hinge part for opening and closing the cover body 12 is formed in an outer peripheral end. The rotating portion is composed of a support piece portion 24 and a support shaft portion 25 protruding from both sides of the support piece portion 24.
[0043]
In addition, the inner lid portion 21 is formed with a rotation support hole 28 through which the rotation support shaft portion 22 of the outer lid portion 20 is penetrated and supported at a center portion of the inner end surface, and at predetermined intervals along the circumferential direction. Arc-shaped groove portions 26 into which the projections 23 of the outer lid portion 20 are slidably inserted and supported are formed at a plurality of positions (three positions in the present embodiment), and the rotation support shaft portion 22 is connected to the rotation support hole 28. Through the penetration support and the insertion of the protrusion 23 into the groove 26, the inner lid 21 can freely rotate within a predetermined angle range inside the outer lid 20.
[0044]
As shown in FIG. 9, the positive terminal plate 16 has an outer portion protruding from a groove 29 and a hole 29 through which the rotation support shaft portion 22 of the outer lid portion 20 protrudes from the rotation support hole 28 of the inner lid portion 21. A substantially circular base portion 31 having a hole 30 into which the projection portion 23 of the lid portion 20 is fitted, a connection piece portion 32 that is inclined from the base portion 31 and is connected to the positive electrode of the battery 13, and a base The contact piece portion 33 is slightly raised from the portion 31 and comes into contact with a connection piece of a first positive electrode contact member to be described later.
[0045]
In this case, kerfs 34 are formed on both sides of the raised portion of the connection piece 32 in the base portion 31.
The contact piece 33 is raised through a kerf 35 formed in the base 31, and its tip is slightly curved to improve contact.
Further, the connecting piece portion 32 is formed with an adapter 38 (see FIG. 10) made of a non-conductive material having engaging portions 36 of the connecting piece portion 32 formed at both ends and a recessed portion 37 formed at the center portion. Is attached, and the portion of the connecting piece 32 connected to the positive electrode of the battery is exposed from the recessed portion 37 of the adapter 38.
[0046]
On the other hand, the housing 11 is formed in a cylindrical shape with one end opened, and is assembled by joining two substantially semi-cylindrical divided bodies 11A and 11B.
A space 40 formed by partitioning plates 39 is formed at the closed bottom of the housing 11, and the space 40 includes circuit portions such as a capacitor and a resistor for suppressing peak current generation. 40A is provided.
The negative terminal spring 17 is mounted on the surface of the partition plate 39 opposite to the space 40.
[0047]
At the outer end of the open part of the housing 11, a rotation support part that freely supports the rotation part of the hinge part is formed. This rotation support portion is shown in FIG. 11 and a support groove portion 42 formed inside a groove portion 41 formed by expanding a part of the outer wall of the housing 11 to the outside at the outer end of the open portion of the housing 11. A support groove 45 is formed between the outer surface of the substantially cylindrical member 43 (described later) and a claw portion 44, and the support piece portion 24 of the rotating portion of the hinge portion is inserted into the groove portion 41. The said spindle part 25 is rotatably supported (refer FIG. 12).
[0048]
In this case, the groove portion 41 constituting the rotation support portion is formed by expanding a part of the outer wall of the housing 11 to the outside at the outer end of the open portion of the housing 11. The strength of can be increased.
Further, the support groove 45 is formed long in the axial direction of the housing 11 so that the support shaft portion 25 can slide up and down, and the hinge portion of the lid 12 can be moved up and down. Can be smoothly rotated through the hinge portion.
[0049]
Inside the housing 11, a part is protruded outward from the open portion, and a plurality of positions (in this embodiment) at predetermined intervals along the circumferential direction of the outer peripheral surface of the protruding portion. A substantially cylindrical member 43 in which a groove portion 46 formed at an inclination is formed at three positions (see FIG. 11).
In this case, a pair of engagement piece portions 48 each having an engagement hole 47 are integrally formed at both side positions of the inner end portion of the substantially cylindrical member 43, and the engagement of one engagement piece portion 48 is performed. An engagement protrusion 47 (not shown) formed on the inner peripheral surface of one divided body 11A that constitutes the housing 11 has a hole 47 formed on the other divided body 11B. By engaging with an engaging protrusion (not shown) formed on the inner peripheral surface, the substantially cylindrical member 43 is mounted inside the housing 11.
[0050]
  In this case, the substantially cylindrical member 43 plays a role of connecting the two divided bodies 11A and 11B, and can increase the bonding strength of the two divided bodies 11A and 11B, thereby improving the strength of the housing 11. Each of the groove portions 46 is opened at the start end portion at the tip end portion of the protruding portion of the substantially cylindrical member 43.In addition, when the terminal portion is closed and the protruding portion of the substantially cylindrical member 43 is placed vertically so that the bottom portion is downward, the starting end portion is inclined to be high and the terminal portion is inclined to be low. Is formed. And each groove 46Each engaging projection 27 of the outer lid 20 inserted from the start end slides as the outer lid 20 rotates.The endIt has come to reach.here,As shown in FIG. 13, an inclined convex portion 49 is formed in the front portion of the end portion of one groove portion 46, and one engaging projection portion 27 of the outer lid portion 20 gets over this convex portion 49.ByEnd portion of groove 46To the convex part 49Engaging the lid 12It is designed to lock.
[0051]
  In this case, a part of the end portion of the substantially cylindrical member 43 on the side where the groove 46 is formed is a cut portion 50 as shown in FIG. Since it can be elastically deformed so that its diameter contracts, and the restoring spring force at the time of this elastic deformation acts, as described above, one engaging protrusion 27 gets over one convex 49.When trying toThe end of the substantially cylindrical member 43 on the side where the groove 46 is formed is elastically deformed so that its diameter contracts.And this overcoming is possible,OvercameAfter thatWith restoring spring forceReturning to the original diameter, one engaging protrusion 27Is the end of the groove 46Engage with the protrusion 49 atIt is like that.
[0052]
On the other hand, as shown in FIG. 14, the contact portion 18 connected to the positive electrode terminal plate 16 has a connection portion connected to the positive electrode terminal plate 16 at one end, and the inner surface of the housing 11 is provided inside the housing 11. A substantially strip-shaped first positive electrode contact member 51 disposed and fixed along the storage groove 52 extended outwardly on the outer surface portion of the housing 11, and one end portion of the first positive electrode contact member 51 being arranged in the first groove. A second positive contact member 54 which is brought into contact with the positive contact member 51 and whose other end faces the outside of the housing 11 through a hole 53 formed in the housing 11 from the housing groove 52. The
[0053]
In this case, the connection portion of the first positive electrode contact member 51 is composed of a separate strip-shaped connection piece 55.
The connection piece 55 is clamped and fixed between the inner peripheral surface of the housing 11 and the inner surface of a shallow concave portion formed on the outer peripheral surface of the substantially cylindrical member 43, and in this state, the edge of one end portion is the open end of the housing 11. When exposed to the outside from the edge of the part, when the lid 12 is closed, it comes into electrical contact with the contact piece 33 of the positive terminal plate 16 mounted on the inner end surface of the lid 12. Yes.
[0054]
The contact portion connected to the negative terminal spring 17 has a connection portion connected to the negative terminal spring 17 at one end, and is disposed and fixed along the inner surface of the casing 11 inside the casing 11. The first strip-shaped first negative electrode contact member 56 is housed and disposed in the housing groove 52, one end is in contact with the first negative electrode contact member 56, and the other end is disposed from the housing groove 52. And a second negative electrode contact member 58 that faces the outside of the housing 11 through a hole 57 formed in the inner wall.
[0055]
In this case, the second positive electrode contact member 54 and the second negative electrode contact member 58 are each bent and formed into a substantially S shape as shown in FIG.
Further, as shown in FIG. 11, the substantially cylindrical member 43 extends into the housing 11 along the axial direction of the housing 11 at the end opposite to the protruding portion from the housing 11. A cover portion 59 is provided to cover the first positive electrode contact member 51 and the first negative electrode contact member 56 inside, and an arc surface 59a is formed on the inner surface of the cover portion 59, and the first positive electrode contact is formed. A sloped surface 59 b is formed on the surface facing the member 51 and the first negative electrode contact member 56.
[0056]
The housing groove 52 of the housing 11 is provided with a screw 61 that is rotated outwardly by the rotating body 60 so that the battery case 10 can be attached to and detached from the electronic device. When the battery case 10 is mounted on an electronic device, the end of the second positive contact member 54 and the end of the second negative contact member 58 that face the outside of the housing 11 through the hole 53 are respectively provided. Connected to the power supply terminal on the electronic device side.
[0057]
In the battery case 10 having such a configuration, when the lid body 12 is first rotated counterclockwise as viewed from above, the lid body 12 is detached from the housing 11 and the opening portion of the housing 11 is opened.
In this state, the battery 13 is dropped into the housing 11 and stored with the negative electrode on the lower side.
[0058]
  Next, when the lid 12 is put on the open end of the housing 11 and then rotated clockwise as viewed from above, each engagement protrusion 27 of the outer lid 20 is removed from the open portion of the housing 11. Are inserted into the respective grooves 46 on the outer peripheral surface of the substantially cylindrical member 43 projecting in the direction. That is, each engaging projection 27 of the outer lid 20 inserted from the start end of each groove 46 is rotated by the rotation of the outer lid 20.To the end of each groove 46Slide movementTo do. In this case, when one engagement protrusion 27 tries to get over the protrusion 49 by sliding movement, the end of the substantially cylindrical member 43 on the side where the groove 46 is formed is elastically deformed so that its diameter contracts. It is possible to get over, and after getting over, it returns to its original diameter by the restoring spring force of the groove 46 forming side end of the substantially cylindrical member 43,One engaging projection 27The end of the groove portion 46 is engaged with the convex portion 49 so that the lid body 12Lock is performed.
  That is,The lid body 12 is fitted to the housing 12 side in a screw manner, and is removed from the housing 11 by rotating the lid body 12 so as to loosen the screw (it is not separated because it is connected by a hinge part), Fitting and fixing to the housing 11 by rotating the lid 12 so as to tighten the screw(Lock)Is done.
[0059]
In this state where the lid 12 is closed, the negative electrode of the battery 13 is in pressure contact with the negative electrode terminal spring 17, and the positive electrode is in pressure contact with the connection piece 32 of the positive electrode terminal plate 16.
In this case, the connection piece portion 32 is inclined and raised from the base portion 31 of the positive electrode terminal plate 16 and is provided with a spring property. Therefore, the connection piece portion 32 is pressed by the positive electrode of the battery 13 and is compressed and deformed. The spring 13 is surely pressed against the positive electrode of the battery 13 by the repulsive force of the spring.
[0060]
The battery case 10 described above has the following advantages.
Since the battery 13 is taken into and out of the housing 11 of the battery case 10 from the open end of the axial end of the housing 11, the battery 13 is dropped into the housing 11, thereby The housing 11 can be easily stored and taken out by placing the opening portion of the housing 11 on the lower side.
In this case, since the inner surface of the cover portion 59 of the substantially cylindrical member 43 disposed in the housing 11 is formed on the arc surface 59a, the movement of the battery 13 in the housing 11 becomes smooth, In the storage state of the battery 13, the battery 13 is restrained by the arc surface 59 a of the cover portion 59, and the battery 13 is securely held.
[0061]
That is, with the battery lying sideways and slanted like a conventional battery case, first, the negative electrode at one end of the battery is pressed against the negative terminal spring to compress and deform, and in this state, the other end of the battery is pushed down. Thus, it is not necessary to set the battery by inserting the positive electrode at the other end into contact with the positive terminal plate, the battery 13 can be set with one touch, and the battery 13 can be easily set. The takeout and holding properties are also good.
[0062]
  In addition, since the lid 12 is configured to be attached to and detached from the open portion of the housing 11 with a screw type, the lid 12 can be easily opened,When the lid body 12 is screwed into the housing 12 side, one engagement protrusion 27 of the outer lid portion 20 engages with the convex portion 49 at the end portion of the groove portion 46 and the lid body 12. Since I started to lockLockedButSureAndThe lid 12 is not easily opened unexpectedly, and there is no possibility that the battery 13 is detached.
[0063]
  In the configuration in which the lid 12 is attached to and detached from the open portion of the housing 11 with a screw type, in particular, the slope surface 27a is provided on the inner surface of the distal end portion of the engaging projection portion 27 of the outer lid portion 20. The engaging protrusion 27 is easy to get over the protrusion 49,In addition, when the lid 12 is in the locked state where the engaging protrusion 27 gets over the protruding portion 49 and is engaged therewith,There is an advantage that this engagement is difficult to disengage.
[0064]
In addition, when it is set as the structure which attaches / detaches the cover body to the open part of the housing with a screw type, when the cover body is opened from the open part of the housing, the cover body is generally detached from the housing. .
However, if the lid is detached from the housing as described above, the lid is lost, which is not very desirable.
[0065]
In the present invention, in order to overcome this problem, the lid 12 has an outer lid portion 20 to which the positive electrode terminal plate 16 is fixed, and a predetermined angle below the fixed position of the positive electrode terminal plate 16 inside the outer lid portion 20. The lid 12 is mounted on the casing by comprising an inner lid portion 21 which is mounted so that the range can be freely rotated and a hinge portion for opening and closing the lid body 12 is formed at the outer peripheral end. 11, while being connected to the hinge 11, the screw type attaching / detaching operation, that is, the lid 12 can be rotated.
[0066]
Further, since the insertion position of the battery 13 is always appropriate when the battery 13 is set, there is no risk of the positive terminal plate 16 and the negative terminal spring 17 being deformed, and the contact with the terminal of the battery 13 is not hindered. It does not cause defects.
In particular, the connection piece 32 is inclined and raised from the base 31 of the positive terminal plate 16 and is provided with a spring property, so that it is pressed by the positive electrode of the battery 13 and is compressed and deformed. The spring 13 is surely pressed against the positive electrode of the battery 13 by the repulsive force of the spring.
[0067]
Further, since the kerf 34 is formed on both sides of the rising portion of the connection piece 32 in the base portion 31, the spring repulsive force is strong, and the spring sag hardly occurs even after long-term use. Excellent strength and resistance to poor contact.
Further, an adapter 38 made of a non-conductive material is attached to the connection piece portion 32, and a portion exposed from the recessed portion 37 of the adapter 38 of the connection piece portion 32 contacts the positive electrode of the battery 13.
That is, the portion of the connection piece 32 that contacts the positive electrode of the battery 13 is in the back, and the protruding positive electrode of the battery 13 can be contacted, but the negative electrode that is the surface cannot be contacted.
[0068]
This is because the negative electrode of the battery 13 is not in contact with the connection piece 32 even when the battery 13 is inserted in the casing 11 with the positive and negative of the battery 13 reversed. Born.
Further, as described above, when the connection piece 32 of the positive electrode terminal plate 16 and the positive electrode of the battery 13 are reliably contacted, the battery 13 moves inside the housing 11 due to vibration of the electronic device or the like. However, there is no possibility that the battery 13 will be separated from the positive terminal plate 16 and the negative terminal spring 17 even for a moment, and in particular, a digital disc such as a recent CD (compact disc) or MD (mini disc). In the player device, as a result of eliminating the instantaneous non-contact state of the battery 13, a sound reproduction such as sound skipping is not hindered, and an accurate reproduction state can always be obtained.
[0069]
Furthermore, the above embodiment has the following advantages.
That is, the contact portion 18 connected to the positive terminal plate 16 includes a first strip-shaped first positive contact member 51 and a second positive contact member 54, and is connected to the negative terminal spring 17. Since the portion is composed of the first strip-shaped first negative electrode contact member 56 and the second negative electrode contact member 58, the layout of each contact portion in the housing 11 is facilitated. The contact portion can be effectively arranged in a narrow space inside.
[0070]
In particular, since the second positive electrode contact member 54 and the second negative electrode contact member 58 are bent in a substantially S shape and imparted with a spring property, the first positive electrode contact member 51 and the second negative electrode contact member 58 are provided. The contact properties of the positive contact member 54, the first negative contact member 56, and the first negative contact member 58 are maintained well, and the second positive contact member 54 and the second negative contact member 58 are slid. The second positive electrode contact is superior to the case where it is simply bent into a substantially L-shape in order to maintain the electrical contact property at all times and to provide springiness. The interval between the member 54 and the second negative contact member 58 can be narrowed, and the layout of the second positive contact member 54 and the second negative contact member 58 in the housing groove 52 in the housing 11 becomes easy. Second positive electrode contact portion in a narrow space in the storage groove 52 54 and may be a second negative electrode contact member 58 effectively disposed.
[0071]
Further, the substantially cylindrical member 43 extends along the axial direction of the housing 11 at the end opposite to the protruding portion in the housing 11, and the first positive electrode contact member 51 and the first positive electrode contact member 51 inside the housing 11. Since the cover portion 59 that covers the negative electrode contact member 56 is provided, the insulation between the first positive electrode contact member 51, the first negative electrode contact member 56, and the battery 13 can be secured, and an electrical short circuit can be generated. It can be surely prevented.
[0072]
In particular, since the inclined surface 59b is formed on the surface of the cover portion 49 facing the first positive electrode contact member 51 and the first negative electrode contact member 56, the cover portion 49 is connected to the first positive electrode contact member 51. Even when the first negative electrode contact member 56 is disposed close to the first negative electrode contact member 56, the sloped surface 59 b forming portion serves as a relief portion of the contact members 51 and 56, and the first positive electrode contact member 51 is placed in a narrow space in the housing 11. And the first negative electrode contact member 56 and the cover portion 49 can be effectively disposed together.
[0073]
【The invention's effect】
As described above, according to the first aspect of the invention, the lid opening / closing structure and the positive / negative terminal structure in the battery case are improved to improve the detachability of the battery and stabilize the battery mounting state. And providing a battery case that can improve the reliability of the product, for example, by improving the reliability of electrical connection by preventing contact failure and preventing reverse connection when the battery is inserted in the reverse direction. it can.
[0074]
According to the second aspect of the invention, the inner end surface of the outer lid portion has protrusions at a plurality of predetermined intervals along the circumferential direction, and the inner lid portion includes a plurality of projections at predetermined intervals along the circumferential direction. An arc-shaped groove portion is formed at the position where the protruding portion is slidably inserted and supported, and the inner lid portion is configured to freely rotate within a predetermined angle range inside the outer lid portion. The inner lid can be smoothly rotated within a predetermined angle range inside the outer lid, and the lid can be rotated reliably and easily.
[0075]
According to the third aspect of the present invention, the positive terminal plate is provided with a substantially circular base portion having a hole into which the projection portion of the outer lid portion protruding from the groove portion of the inner lid portion is fitted, and the positive terminal plate is inclined from the base portion. Since the connecting piece portion is connected to the positive electrode of the battery, the contact between the positive terminal plate and the positive electrode of the battery can be reliably maintained.
[0076]
According to the invention according to claim 4, since the groove is formed on both sides of the rising portion of the connection piece portion in the base portion, the repulsive force of the spring of the connection piece portion can be increased and used for many years. However, there is an advantage in that the spring sag is less likely to occur and is excellent in yield strength and hardly causes poor contact.
[0077]
According to the fifth aspect of the present invention, the connection piece portion is mounted with an adapter made of a non-conductive material in which the engagement portions of the connection piece portion are formed at both ends and the recess is formed in the center portion. Since the portion of the connecting piece that is connected to the positive electrode of the battery is exposed from the recessed portion of the adapter, even if the battery is mistakenly inserted into the case with the positive and negative of the pond reversed, There is no fear.
[0078]
  According to the sixth aspect of the present invention, since the slope is provided on the inner surface of the front end of the engaging projection of the outer lid, the engaging projection of the outer lid and the groove on the substantially cylindrical member side. ofConvexCan be reliably and smoothly engaged.
[0079]
According to the seventh aspect of the present invention, the contact portion connected to the positive terminal plate has the connection portion connected to the positive terminal plate at one end, and is arranged along the inner surface of the casing inside the casing. The first positive electrode contact member having a substantially strip shape that is fixed and the storage groove that is extended outwardly on the outer surface portion of the housing, and one end portion is in contact with the first positive electrode contact member; A second positive electrode contact member having the other end facing the outside of the housing from the housing groove, and a contact portion connected to the negative terminal spring is connected to the negative terminal spring at one end A substantially strip-shaped first negative electrode contact member having a connection portion and disposed and fixed along the inner surface of the housing inside the housing, and housed in the housing groove, and one end portion of the first negative contact member A second negative electrode contact member that is in contact with the negative electrode contact member and whose other end faces the outside of the housing from the housing groove. Since it is configured in the layout is facilitated in the housing of each contact portion can be effectively disposed contact portion in a narrow space in the housing.
[0080]
According to the eighth aspect of the present invention, the second positive electrode contact member and the second negative electrode contact member are each bent and formed in a substantially S shape to provide springiness. The contact between the contact member and the second positive contact member, and the contact between the first negative contact member and the first negative contact member are kept good, and the second positive contact member and the second negative contact member are stretched. In addition, the electrical contact can be maintained constantly and the layout of the second positive contact member and the second negative contact member in the housing groove in the housing is facilitated and stored. The second positive electrode contact member and the second negative electrode contact member can be effectively disposed in a narrow space in the groove.
[0081]
According to the ninth aspect of the present invention, the substantially cylindrical member extends along the axial direction of the casing inside the casing at the end opposite to the protruding portion, and the first positive contact member inside the casing A cover portion that covers the second negative electrode contact member; a slope surface on a surface facing the first positive electrode contact member and the second negative electrode contact member of the cover portion; Since the arc surfaces are formed so as to form each, the insulation between the first positive electrode contact member, the first negative electrode contact member and the battery can be secured, and the occurrence of an electrical short circuit can be reliably prevented, The movement of the battery in the casing is smooth, and the battery can be securely held.
[0082]
According to the invention which concerns on Claim 10, the rotation support part is a support groove part formed inside the groove part formed by expanding a part of the outer wall of the case to the outside at the outer end of the open part of the case. And the support groove formed between the substantially cylindrical member outer surface and the claw portion, the strength of the rotation support portion can be increased.
[0083]
According to the eleventh aspect of the present invention, since the rotating portion of the lid hinge portion is configured to be freely slidable in the support groove in the axial direction, the lid can be opened and closed smoothly.
[0084]
According to the twelfth aspect of the present invention, the strip-shaped connection piece is sandwiched and fixed between the inner peripheral surface of the casing and the inner surface of the shallow concave portion formed on the outer peripheral surface of the substantially cylindrical member, and one end portion of the connection piece Is connected to the first positive electrode contact member, and the edge of the other end is exposed outward from the edge of the open end of the housing, and the lid body end face is closed when the lid is closed. Since it is configured so as to be in electrical contact with the contact piece portion of the positive electrode terminal plate attached to the battery, electrical connection can be reliably performed.
[0085]
[Brief description of the drawings]
1A and 1B are diagrams showing an embodiment of a battery case according to the present invention, in which FIG. 1A is a front view of the battery case, FIG. 1B is a left side view thereof,
2A is a right side view, and FIG. 2B is a plan view.
FIGS. 3A and 3B are views showing a housing of the battery case, wherein FIG. 3A is a rear view and FIG. 3B is a right side view thereof.
FIG. 4 is a bottom view showing a state where a lid is removed.
FIG. 5 is a plan sectional view showing the inside of the housing.
6A and 6B are diagrams showing the structure of the lid body side, where FIG. 6A is a plan view and FIG. 6B is a right side view thereof.
7A and 7B are views showing the structure of the outer lid, in which FIG. 7A is a plan view, FIG. 7B is a right side view thereof, and FIG.
FIGS. 8A and 8B are diagrams showing the structure of the inner lid, in which FIG. 8A is a plan view and FIG. 8B is a right side view thereof.
9A and 9B are diagrams showing the structure of a positive terminal plate, where FIG. 9A is a rear view, and FIG. 9B is a right side view thereof.
10A and 10B are diagrams showing the structure of an adapter, where FIG. 10A is a front view and FIG. 10B is a left side view thereof.
FIGS. 11A and 11B are diagrams showing the structure of a substantially cylindrical member, in which FIG. 11A is a front view, FIG. 11B is a partially cut right side view, and FIG.
FIG. 12 is a longitudinal sectional view showing the structure of the hinge part of the lid
FIGS. 13A and 13B are views showing the structure of a groove portion of a substantially cylindrical member, in which FIG. 13A is a front view, and FIG. 13B is a cross-sectional view taken along line BB in FIG.
FIG. 14 is a longitudinal sectional view showing details inside the housing.
15A is a front view showing the configuration of the second positive electrode contact member, and FIG. 15B is a front view showing the configuration of the second negative electrode contact member.
FIG. 16 is a plan view showing a configuration of a conventional battery case in a transparent manner.
FIG. 17 is a front view showing the configuration of the battery case as seen through.
[Explanation of symbols]
10 Battery case
11 Case
12 Lid
13 batteries
14 Battery compartment
15 Case body
16 Positive terminal block
17 Negative terminal spring
18, 19 Contact part
20 outer lid
21 Inner lid
23 Protrusion
24 Support piece
25 Support shaft
26 Groove
27 Engaging protrusion
28 Rotating support hole
32 Connection piece
33 Contact piece
38 adapter
43 substantially cylindrical member
51 1st positive electrode contact member
52 Storage groove
54 Second positive electrode contact member
55 connection piece
56 First negative electrode contact member
58 Second negative contact member
59 Cover

Claims

A case main body comprising a case opened at one end and a lid for opening and closing the open portion of the case, and comprising a battery storage chamber for storing a battery therein, and mounted inside the case. A positive terminal plate connected to the positive electrode of the battery stored in the battery storage chamber, a negative terminal spring attached to the inside of the closed end of the housing and connected to the negative electrode of the battery, and in the battery storage chamber, A battery case configured to include a pair of contact portions connected to the positive terminal plate and the negative terminal spring, respectively, and facing outward from the outer surface of the case body,
The lid body has engagement protrusions at a plurality of positions at predetermined intervals along the circumferential direction of the inner circumferential surface, and an outer lid portion to which the positive electrode terminal plate is fixed, and the inner side of the outer lid portion. A hinge part for opening and closing the lid body, which is mounted so as to be freely rotatable within a predetermined angle range below the fixed position of the positive terminal plate, and comprises an inner lid part formed at the outer peripheral end. And
On the outer end of the opening part of the housing, a rotation support part for freely supporting the rotation part of the hinge part is formed, and inside thereof, a part is outward from the opening part. A substantially cylindrical member that is disposed so as to protrude and is formed with inclined grooves at a plurality of predetermined intervals along the circumferential direction of the outer peripheral surface of the protruding portion is mounted,
The groove-forming side end of the substantially cylindrical member is formed so that a cut-out portion is formed in a part thereof and can be elastically deformed so that the diameter thereof is contracted, and the groove of the substantially cylindrical member is substantially cylindrical. Each of the outer lid portions inserted from the start end portion is configured such that the start end portion at the tip end portion of the protruding portion of the shaped member is opened and a convex portion is formed in the front portion of the end portion of one groove portion. protrusion slides to the end portion of the groove by the rotation of the outer lid, that one engaging protrusion rides over the convex portion of the one groove end portion, engaged with the convex portion A battery case configured to lock the lid .

On the inner end surface of the outer lid portion, there are projections at a plurality of positions at predetermined intervals along the circumferential direction, and the projection portion can freely slide at a plurality of positions at predetermined intervals along the circumferential direction on the inner lid portion. 2. The battery case according to claim 1, wherein an arcuate groove portion to be inserted and supported is formed, and the inner lid portion is freely rotatable within a predetermined angle range inside the outer lid portion.

The positive terminal plate has a substantially circular base portion having a hole into which a projection portion of the outer lid portion protruding from the groove portion of the inner lid portion is fitted, and is tilted up from the base portion to rise to the positive electrode of the battery. The battery case according to claim 1, wherein the battery case is configured to be connected to each other.

The battery case according to claim 3, wherein kerfs are formed on both sides of the rising portion of the connection piece portion in the base portion.

An adapter made of a non-conductive material having engaging portions of the connection piece formed at both ends and a recess formed at the center is attached to the connection piece, and the connection piece extends from the recess of the adapter. 5. The battery case according to claim 3, wherein a portion connected to the positive electrode of the battery is exposed.

The battery case according to any one of claims 1 to 5, wherein a gradient is provided on the inner surface of the front end of the engaging projection of the outer lid.

The contact portion connected to the positive electrode terminal plate has a connection portion connected to the positive electrode terminal plate at one end portion, and is arranged in a substantially strip-like shape that is disposed and fixed along the inner surface of the housing inside the housing. 1 positive contact member and a housing groove extended outwardly on the outer peripheral surface of the housing, one end is in contact with the first positive contact member, and the other end from the housing groove to the housing. A second positive electrode contact member facing outside the body,
The contact portion connected to the negative electrode terminal spring has a connection portion connected to the negative electrode terminal spring at one end portion, and has a substantially strip-like shape that is disposed and fixed along the inner surface of the housing inside the housing. 1 negative contact member and a second negative contact member that is housed and disposed in the storage chamber, one end of which is in contact with the first negative contact member, and the other end that faces the housing from the housing groove. The battery case according to any one of claims 1 to 6, wherein

8. The battery case according to claim 7, wherein each of the second positive electrode contact member and the second negative electrode contact member is bent into a substantially S shape and is provided with a spring property.

The substantially cylindrical member extends along the axial direction of the casing at the end opposite to the protruding portion, and covers the first positive electrode contact member and the second negative electrode contact member inside the casing. And a slope surface is formed on a surface of the cover portion facing the first positive electrode contact member and the second negative electrode contact member, and an arc surface is formed on the side facing the inside of the housing. The battery case according to any one of claims 1 to 8, wherein:

The rotation support part that freely supports the rotation part of the hinge part for opening and closing the lid body has a part of the outer wall of the casing bulges outward at the outer end of the casing. It is comprised from the support groove formed between the support groove part formed in the extended groove part inner side, and the nail | claw part of a substantially cylindrical member outer surface, It is any one of the Claims 1-9 characterized by the above-mentioned. Battery case as described in.

The battery case according to claim 10, wherein the rotation portion of the hinge portion is configured to freely slide in the support groove in the axial direction.

A strip-shaped connection piece is sandwiched and fixed between the inner peripheral surface of the housing and the inner surface of the shallow concave portion formed on the outer peripheral surface of the substantially cylindrical member, and one end of the connection piece is connected to the first positive electrode contact member. And the edge of the other end is exposed outward from the edge of the open end of the housing, and when the lid is closed, the positive terminal plate attached to the peripheral surface of the lid The battery case according to claim 1, wherein the battery case is in electrical contact with the contact piece.