JP3505286B2 - Battery pack - Google Patents
Battery packInfo
- Publication number
- JP3505286B2 JP3505286B2 JP20563395A JP20563395A JP3505286B2 JP 3505286 B2 JP3505286 B2 JP 3505286B2 JP 20563395 A JP20563395 A JP 20563395A JP 20563395 A JP20563395 A JP 20563395A JP 3505286 B2 JP3505286 B2 JP 3505286B2
- Authority
- JP
- Japan
- Prior art keywords
- case
- notch
- battery pack
- electrode terminal
- reverse
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Description
【発明の詳細な説明】
【０００１】
【発明の属する技術分野】本発明は、＋−の逆接続を防
止できるパック電池に関する。
【０００２】
【従来の技術】パック電池は、＋−の電極端子を正しく
電気機器や充電器に装着する必要がある。電極端子の＋
−が逆に接続されると、パック電池や電気機器に過大な
電流が流れ、パック電池や電気機器に著しく悪影響を与
える欠点がある。図１に示すように、ケース１の先端部
に＋−の電極端子２を設けたパック電池は、＋−を逆に
して電気機器や充電器の装着部に装着できるので、＋−
が逆接続される欠点がある。
【０００３】この弊害を防止するために、図２に示すよ
うに、ケース１の先端部の片側の隅部に切欠３を設けた
パック電池が開発されている（特開昭５９−５６８３１
号公報）。このパック電池は、切欠３を電気機器や充電
器の装着部の凸部に案内して装着する。いいかえると、
電気機器や充電器は、装着部に切欠３を案内する凸部を
設けている。この形状のパック電池は、ケース１先端の
左右を逆にして、すなわち、電極端子２の＋−を逆にし
て電気機器等の装着部にセットできないように構成でき
る。電気機器等の凸部が、ケース１の切欠３のない部分
に当たるからである。このため、電極端子２の＋−を逆
にして装着部に装着されるのを阻止できる。
【０００４】
【発明が解決しようとする課題】したがって、図２に示
すように、ケース１の先端部に切欠３を設けたパック電
池は、電極端子２の＋−の逆接続を阻止できる。しかし
ながら、この構造のパック電池は、ケース１の先端面に
電極端子２を表出させているので、電気機器等の装着部
にセットした状態で、電気機器等の電源端子に押し付け
て電気接続される。電源端子は、電気機器に確実に接触
できるように、弾性的に変形できる金属板や金属線が使
用される。この構造のパック電池は、新しいときは、電
気機器を電源端子に確実に電気接続できる。しかしなが
ら、長期間使用して、電極端子の表面に異物が付着し、
あるいは、電極端子の表面が酸化するなどの変質する
と、電源端子に確実に電気接続できなくなることがあ
り、使用するにしたがって接触不良を起こしやすい欠点
がある。
【０００５】この弊害は、図３に示すように、ケース１
の側面に電極端子２を設けることで有効に防止できる。
ケースの側面に電極端子２のあるパック電池は、矢印で
示すように縦に押し込んで電気機器等の装着部に挿入す
るときに、電極端子２が装着部の電源端子に対して摺動
する。パック電池を脱着する毎に電源端子で表面を擦ら
れる電極端子は、表面の酸化膜や異物が除去されて、電
源端子に確実に電気接続できる。このため、接触不良を
有効に阻止できる特長がある。しかしながら、電源端子
に摺動させて接続する電極端子は、図２に示すパック電
池の電極端子２のように小さくすることができない。電
気機器等の装着部に設けられた電源端子に押し付けて電
気接続される電極端子は、電源端子に接続される部分の
みを小さく開口して接続できるが、電源端子を摺動して
接続される電極端子は、図３に示すように、摺動方向に
長くする必要がある。このため、電極端子２のある部分
を大きく開口する必要がある。電極端子２を大きく開口
するパック電池は、電気機器等から外した状態で、電気
機器がショートしやすくなる欠点がある。このため、図
３に示すパック電池は、電極端子の接触不良を有効に阻
止できる特長はあるが、電極端子がショートしやすくな
る欠点がある。
【０００６】本発明はさらに、この弊害を防止すること
を目的に開発されたものである。本発明の重要な目的
は、＋−の電極端子の逆接続を阻止する逆装着阻止突起
を、電極端子のショートの阻止パーツに併用することに
よって、極めて簡単な構造で、パック電池の逆接続と、
接触不良と、ショートとを有効に阻止できるパック電池
を提供することにある。
【０００７】
【課題を解決するための手段】本発明のパック電池は、
前述の目的を達成するために下記の構成を備える。パッ
ク電池は、外形の断面形状を方形状とする角型のケース
１に二次電池４を内蔵している。ケース１は、先端部の
両側面と両端面に表出したＬ字状に電極端子２を備え
る。さらに、ケース１の先端部には、充電器や電気機器
等の装着部に装着されるときに、＋−の電極端子２が逆
になる状態で装着されるのを阻止するための切欠３が、
電極端子２が設けられている少なくとも一方の側面に設
けられている。この切欠３が充電器や電気機器等の装着
部に設けられている凸部に案内されて装着されるように
構成されている。
【０００８】 さらに、本発明のパック電池は、少なく
とも片方の電極端子２はケース１の切欠３に配設されて
いる。切欠３には、パック電池の＋−の逆挿入を阻止す
る逆装着阻止突起５を設けている。逆装着阻止突起５
は、切欠３に設けられた電極端子２に隣接し、ケース１
の先端方向に延長して設けられており、この逆装着阻止
突起５は、切欠３の上縁に沿って設けられることによっ
て、ケースの側面から突出することなく切欠３から突出
しており、この逆装着阻止突起５は、パック電池の逆接
続を阻止することに加えて、切欠３に設けられている電
極端子２に金属等が接触してショートするのを防止す
る。
【０００９】
【発明の実施の形態】以下、本発明の実施の形態を図面
に基づいて説明する。ただし、以下に示す実施の形態
は、本発明の技術思想を具体化するためのパック電池を
例示するものであって、本発明はパック電池を下記のも
のに特定しない。
【００１０】さらに、この明細書は、特許請求の範囲を
理解し易いように、実施の形態に示される部材に対応す
る番号を、「特許請求の範囲の欄」、および「課題を解
決するための手段の欄」に示される部材に付記してい
る。ただ、特許請求の範囲に示される部材を、実施の形
態の部材に特定するものでは決してない。
【００１１】図４と図５に示すパック電池は、プラスチ
ック製のケース１に、角型の二次電池４と、保護回路を
実装しているプリント基板６と、保護素子７であるＰＴ
Ｃを内蔵している。
【００１２】ケース１は、外形の断面形状を長方形とす
る角型で、先端面と両側面に電極端子２を設けている。
電極端子２は、長方形をしているケース１の先端部分の
隅角に設けている。ケース１の先端面と両側面とに＋−
の電極端子２を表出させるために、金属板をＬ字状に折
曲して電極端子２とし、この電極端子２をケース１の内
面に配設している。この図のパック電池は、ケース１の
先端面と両側面とに電極端子２を配設しているが、電極
端子はケースの両側面にのみ設けることもできる。
【００１３】ケース１の先端部には、充電器や電気機器
等の装着部に装着されるときに、＋−の電極端子２が逆
になる状態で装着されるのを阻止するための切欠３を１
面に設けている。図に示すパック電池は、ケース１の片
方に切欠３を設けている。したがって、一方の電極端子
２は切欠３に、他方の電極端子２は切欠３のないケース
１の側面に配設している。切欠３は、図４に示すよう
に、充電器や電気機器等の装着部８に設けられている凸
部８Ａに案内されて、パック電池を決められた姿勢で装
着する。
【００１４】さらに、ケース１は、図４に示すように、
電極端子２を配設している切欠３に隣接して、しかもケ
ース１の先端に延長して、＋−の逆挿入を阻止する逆装
着阻止突起５を設けている。図４に示すパック電池は、
切欠３の上縁に沿って逆装着阻止突起５を設けている。
逆装着阻止突起５は、切欠３を設けているケース先端部
の幅を、切欠３のない部分と同じ幅に形成している。逆
装着阻止突起５は、ケース１をプラスチックで成形する
ときに、ケース１と一体的に成形される。
【００１５】この図に示す形状のパック電池は、図４に
示すように、切欠３を電気機器や充電器の凸部８Ａに案
内する姿勢で電気機器等の装着部８に装着できる。しか
しながら、図６と図７に示すように、電極端子２の＋−
を逆にする姿勢では、パック電池を水平の姿勢として
も、また、パック電池の先端部のみを挿入する姿勢とし
ても、装着部８に装着できない。それは、逆装着阻止突
起５と装着部８の凸部８Ａが当たって挿入できないから
である。
【００１６】以上のパック電池は、ケース１先端部の片
側に切欠３を設けている。切欠３は、図８に示すよう
に、ケース１先端の両側に設けることもできる。この図
のパック電池は、両側に切欠３を設けて、両方の切欠３
に電極端子２を配設し、両方の切欠３の上縁にそって逆
装着阻止突起５を設けている。逆装着阻止突起５は、ケ
ース１の幅を、切欠３のない部分と同じにしている。こ
の図のパック電池を装着する電気機器や充電器の装着部
８は、図８に示すように、両側の切欠３に案内される凸
部８Ａを両側に設けている。
【００１７】ケース１に内蔵して定位置に固定される電
極端子２は、プリント基板６に固定されて、ケース１に
開口された電極窓９からケース１の外部に表出する。電
極端子２は、パック電池を電気機器や充電器に装着した
状態で、二次電池を電気機器や充電器の電源端子（図示
せず）に接続する為の端子である。図に示すパック電池
は、ケース１先端面の形状を、左右非対称にしている。
パック電池を逆にしたときに、＋−の電極端子２が逆接
続するのをより確実に阻止するためである。
【００１８】＋−の電極端子２は、金属板をＬ字状に折
曲して、ケース１内面の先端部でその隅部に配設されて
いる。Ｌ字状の電極端子２は、プリント基板６のコーナ
ーと、先端部とに半田付等の方法で接続されている。プ
リント基板６のコーナーに固定される電極端子２は、ケ
ース１に設けた切欠３の内側に配設されている。この電
極端子２は、ＰＴＣ等の保護素子７を介して、二次電池
の＋電極に接続されている。プリント基板６の先端に固
定される電極端子２は、内蔵される二次電池の外装缶に
スポット溶接されて、二次電池の−極に接続されてい
る。図に示す二次電池は、外装缶を−、封口蓋の中心を
＋極としているが、外装缶を＋、封口蓋の中心を−極と
する二次電池も使用できる。
【００１９】内蔵される二次電池は、ニッケル−カドミ
ウム電池、ニッケル−水素電池、リチウムイオン二次電
池等の角型電池である。図に示す二次電池は、角型のス
リム電池である。図に示すパック電池は、１個の二次電
池を内蔵するが、内蔵する二次電池を、２個以上とする
こともできる。
【００２０】二次電池とケース１との間に配設されるプ
リント基板６は、二次電池の過充電や過放電を防止する
保護回路を内蔵している。プリント基板６には電子部品
が固定されている。図５に示すパック電池は、プリント
基板６に固定する電子部品を、ケース１に切欠３を設け
ることによってできるケース１と二次電池との間の空隙
に配設している。さらに、プリント基板６に接続するＰ
ＴＣ等の保護素子７も、ケース１と二次電池との間の空
隙に配設している。先端に切欠３を設けるケース１は、
内部に角型の二次電池を収納すると、切欠３のない部分
に空隙ができる。ここに電子部品やＰＴＣを内蔵させる
と、ケース１内に無駄な空隙ができなように、電子部品
やＰＴＣを内蔵できる。
【００２１】さらに、図５に示すパック電池は、プリン
ト基板６の電子部品とＰＴＣとの間にできる空隙に、位
置決用の凹部１０を設けている。凹部１０は、図４に示
すように、電気機器や充電器の装着部８に装着した状態
で、弾性片１１が弾性的に圧入されて、パック電池が装
着部８から外れるのを防止する。したがって、ケース１
の側部に凹部１０のあるパック電池は、装着部８に外れ
難いように装着できる。さらに、プリント基板６の電子
部品とＰＴＣの間の空隙に凹部１０を設けることによ
り、ケース１内の空隙を有効利用して、凹部１０を設け
ることができる特長がある。
【００２２】
【発明の効果】本発明のパック電池は、極めて簡単な構
造で、パック電池の逆接続と、接触不良と、ショートと
を有効に阻止できる特長がある。それは、本発明のパッ
ク電池が、切欠に電極端子を設けると共に、この電極端
子に隣接して、ケースの先端方向に延長して逆装着阻止
突起を設けているからである。逆装着阻止突起は、パッ
ク電池の＋−を逆にして装着部にセットするのを阻止す
ることに加えて、切欠に設けた電極端子のショートを有
効に防止する。ケースの両側に設けた電極端子は、パッ
ク電池を装着部に挿入するときに、電気機器等に設けら
れた電源端子を摺動させて電気接続される。このため、
ケースの先端面に設ける電極端子よりも大きく開口する
必要があって、ショートしやすい欠点がある。本発明の
パック電池は、電極端子のある切欠に設けている逆装着
阻止突起でこの欠点を解消する。逆装着阻止突起は、パ
ック電池の＋−の逆接続を阻止するのに加えて、電極端
子のショートを防止するパーツにも併用される。逆装着
阻止突起が電極端子のショートを防止するのは、切欠か
ら突出する逆装着阻止突起が、電極端子に接触しようと
する金属片等を押し出して接触しないようにするからで
ある。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a battery pack capable of preventing reverse connection of + and-. 2. Description of the Related Art In a battery pack, it is necessary to correctly mount + and-electrode terminals to electric equipment or a charger. + Of electrode terminal
When-is connected in reverse, an excessive current flows in the battery pack or the electric equipment, and there is a disadvantage that the pack battery or the electric equipment is significantly adversely affected. As shown in FIG. 1, a battery pack provided with a +-electrode terminal 2 at the end of a case 1 can be mounted on a mounting portion of an electric device or a charger by reversing the +-direction.
However, there is a disadvantage that the connection is reversed. In order to prevent this adverse effect, as shown in FIG. 2, a battery pack has been developed in which a notch 3 is provided at one corner of the front end of a case 1 (Japanese Patent Laid-Open No. 59-56831).
Publication). The battery pack is mounted by guiding the notch 3 to a convex portion of a mounting portion of an electric device or a charger. In other words,
The electric device or the charger has a projection for guiding the notch 3 in the mounting portion. The battery pack of this shape can be configured such that the left and right ends of the case 1 are reversed, that is, the + and-of the electrode terminals 2 are reversed so that they cannot be set in a mounting portion of an electric device or the like. This is because the convex portion of the electric device or the like corresponds to a portion of the case 1 where the notch 3 is not provided. For this reason, it is possible to prevent the electrode terminal 2 from being mounted on the mounting portion by reversing + and-. [0004] Therefore, as shown in FIG. 2, a battery pack provided with a notch 3 at the tip end of a case 1 can prevent reverse connection of the electrode terminals 2. However, in the battery pack having this structure, the electrode terminals 2 are exposed on the front end surface of the case 1, so that the battery pack is set in the mounting portion of the electric device or the like and pressed against the power terminal of the electric device or the like to be electrically connected. You. As the power supply terminal, a metal plate or a metal wire that can be elastically deformed is used so that the power supply terminal can surely come into contact with the electric device. When the battery pack of this structure is new, the electric device can be reliably electrically connected to the power supply terminal. However, after long-term use, foreign matter adheres to the surface of the electrode terminals,
Alternatively, if the surface of the electrode terminal is deteriorated by oxidation or the like, it may not be possible to reliably make an electrical connection to the power supply terminal, and there is a disadvantage that a contact failure is likely to occur as the terminal is used. [0005] As shown in FIG.
Can be effectively prevented by providing the electrode terminals 2 on the side surfaces of the.
When the battery pack having the electrode terminals 2 on the side surface of the case is pushed vertically as shown by the arrow and inserted into a mounting portion of an electric device or the like, the electrode terminals 2 slide with respect to the power supply terminals of the mounting portion. The electrode terminals whose surfaces are rubbed by the power supply terminal each time the battery pack is detached can be reliably electrically connected to the power supply terminal by removing an oxide film and foreign substances on the surface. For this reason, there is a feature that a contact failure can be effectively prevented. However, the electrode terminal slidably connected to the power supply terminal cannot be made as small as the electrode terminal 2 of the battery pack shown in FIG. Electrode terminals that are electrically connected to a power supply terminal provided in a mounting portion of an electric device or the like can be connected by opening only a small portion of the electrode terminal to be connected to the power supply terminal, but are connected by sliding the power supply terminal. The electrode terminals need to be lengthened in the sliding direction, as shown in FIG. For this reason, it is necessary to open a large portion of the electrode terminal 2. A battery pack having a large opening at the electrode terminal 2 has a drawback that the electric device is likely to short-circuit when detached from the electric device or the like. For this reason, the battery pack shown in FIG. 3 has a feature that the contact failure of the electrode terminals can be effectively prevented, but has a disadvantage that the electrode terminals are easily short-circuited. The present invention has been further developed for the purpose of preventing this adverse effect. An important object of the present invention is to use a reverse mounting preventing projection for preventing reverse connection of the + and-electrode terminals together with a short-circuit preventing part of the electrode terminal, thereby achieving a very simple structure and a reverse connection of the battery pack. ,
An object of the present invention is to provide a battery pack that can effectively prevent poor contact and short circuit. [0007] The battery pack of the present invention comprises:
In order to achieve the above object, the following configuration is provided. In the battery pack, a secondary battery 4 is built in a rectangular case 1 having a rectangular outer cross-sectional shape. The case 1 includes electrode terminals 2 in an L-shape exposed on both side surfaces and both end surfaces of the distal end portion. Further, a notch 3 for preventing the +/- electrode terminal 2 from being mounted in an inverted state when mounted on a mounting portion of a charger, an electric device, or the like, is provided at a distal end portion of the case 1. ,
It is provided on at least one side surface where the electrode terminal 2 is provided. The notch 3 is configured to be mounted by being guided by a protrusion provided on a mounting portion of a charger, an electric device, or the like. Further, in the battery pack of the present invention, at least one of the electrode terminals 2 is provided in the notch 3 of the case 1. The notch 3 is provided with a reverse mounting prevention protrusion 5 for preventing reverse insertion of + and-of the battery pack. Reverse mounting prevention protrusion 5
Is adjacent to the electrode terminal 2 provided in the notch 3 and the case 1
Of provided to extend in the distal direction, the reverse mounting blocking
The protrusion 5 is provided along the upper edge of the notch 3.
And project from the notch 3 without projecting from the side of the case
And is, the inverse mounting preventing projections 5, in addition to preventing the reverse connection of the battery pack, a metal or the like to the electrode terminals 2 provided in the notch 3 is prevented from being shorted by contact. Embodiments of the present invention will be described below with reference to the drawings. However, the embodiments described below exemplify a battery pack for embodying the technical idea of the present invention, and the present invention does not specify a battery pack as follows. Further, in this specification, in order to facilitate understanding of the claims, the numbers corresponding to the members described in the embodiments will be referred to as "claims" and " In the column of "means of the above". However, the members described in the claims are not limited to the members of the embodiments. The battery pack shown in FIGS. 4 and 5 has a prismatic secondary battery 4, a printed circuit board 6 on which a protection circuit is mounted, and a PT as a protection element 7, in a plastic case 1.
C is built in. The case 1 has a rectangular shape with a rectangular outer cross-sectional shape, and has electrode terminals 2 provided on the end face and both side faces.
The electrode terminals 2 are provided at the corners of the front end of the rectangular case 1. +-On both the end surface and both side surfaces of case 1
The metal plate is bent into an L-shape to form the electrode terminal 2, and the electrode terminal 2 is disposed on the inner surface of the case 1. In the battery pack of this figure, the electrode terminals 2 are provided on the front end surface and both side surfaces of the case 1, but the electrode terminals may be provided only on both side surfaces of the case. A notch 3 is formed at the tip of the case 1 to prevent the + and-electrode terminals 2 from being mounted in a reversed state when mounted on a mounting portion such as a charger or an electric device. 1
It is provided on the surface. The battery pack shown in the drawing has a notch 3 on one side of a case 1. Therefore, one electrode terminal 2 is provided on the notch 3 and the other electrode terminal 2 is provided on the side surface of the case 1 having no notch 3. As shown in FIG. 4, the notch 3 is guided by a convex portion 8A provided on a mounting portion 8 of a charger, an electric device, or the like, and mounts the battery pack in a predetermined posture. Further, as shown in FIG.
Adjacent to the notch 3 in which the electrode terminal 2 is provided, and further extending to the tip of the case 1, there is provided a reverse mounting prevention protrusion 5 for preventing reverse insertion of + and-. The battery pack shown in FIG.
A reverse mounting prevention protrusion 5 is provided along the upper edge of the notch 3.
The reverse mounting prevention projection 5 is formed such that the width of the front end of the case provided with the notch 3 is the same as the width of the portion without the notch 3. The reverse mounting prevention projection 5 is formed integrally with the case 1 when the case 1 is formed of plastic. As shown in FIG. 4, the battery pack having the shape shown in this figure can be mounted on the mounting portion 8 of an electric device or the like in such a manner that the notch 3 is guided to the projection 8A of the electric device or the charger. However, as shown in FIG. 6 and FIG.
When the battery pack is in a horizontal posture, or when only the tip of the battery pack is inserted, the battery pack cannot be mounted on the mounting portion 8. This is because the reverse mounting prevention projection 5 and the convex portion 8A of the mounting portion 8 hit each other and cannot be inserted. In the above battery pack, a notch 3 is provided on one side of the tip of the case 1. The notches 3 can be provided on both sides of the front end of the case 1 as shown in FIG. In the battery pack of this figure, notches 3 are provided on both sides, and both notches 3
The electrode terminals 2 are disposed on the upper side of the cutouts 3, and the reverse mounting prevention projections 5 are provided along the upper edges of both the notches 3. The width of the case 1 is the same as that of the portion without the notch 3 in the reverse mounting prevention protrusion 5. As shown in FIG. 8, the mounting portion 8 of the electric device or the charger for mounting the battery pack shown in this figure has projections 8A on both sides guided by the cutouts 3 on both sides. The electrode terminal 2 built in the case 1 and fixed at a fixed position is fixed to a printed circuit board 6 and is exposed to the outside of the case 1 through an electrode window 9 opened in the case 1. The electrode terminal 2 is a terminal for connecting the secondary battery to a power terminal (not shown) of the electric device or the charger while the battery pack is mounted on the electric device or the charger. In the battery pack shown in the figure, the shape of the front end surface of the case 1 is left-right asymmetric.
This is to prevent the + -electrode terminals 2 from being reversely connected when the battery pack is reversed. The positive and negative electrode terminals 2 are formed by bending a metal plate into an L-shape, and are disposed in the corners at the front end of the inner surface of the case 1. The L-shaped electrode terminal 2 is connected to a corner of the printed circuit board 6 and to a tip portion by soldering or the like. The electrode terminals 2 fixed to the corners of the printed circuit board 6 are arranged inside the cutouts 3 provided in the case 1. The electrode terminal 2 is connected to a positive electrode of the secondary battery via a protection element 7 such as PTC. The electrode terminal 2 fixed to the tip of the printed circuit board 6 is spot-welded to an external can of a built-in secondary battery, and is connected to the negative electrode of the secondary battery. Although the secondary battery shown in the figure has an outer can having a negative polarity and the center of the lid being a positive electrode, a secondary battery having an outer can having a positive polarity and the center of the lid having a negative polarity can also be used. The built-in secondary battery is a prismatic battery such as a nickel-cadmium battery, a nickel-hydrogen battery, and a lithium ion secondary battery. The secondary battery shown in the figure is a rectangular slim battery. Although the battery pack shown in the figure incorporates one secondary battery, the number of secondary batteries incorporated may be two or more. The printed circuit board 6 disposed between the secondary battery and the case 1 has a built-in protection circuit for preventing overcharge and overdischarge of the secondary battery. Electronic components are fixed to the printed circuit board 6. In the battery pack shown in FIG. 5, electronic components to be fixed to the printed circuit board 6 are provided in a gap between the case 1 and the secondary battery formed by providing the cutout 3 in the case 1. Further, P connected to the printed circuit board 6
The protection element 7 such as TC is also provided in the gap between the case 1 and the secondary battery. Case 1, in which notch 3 is provided at the tip,
When a rectangular secondary battery is housed inside, a void is formed in a portion where the notch 3 is not provided. When the electronic components and the PTC are incorporated therein, the electronic components and the PTC can be incorporated so that no useless air gap is formed in the case 1. Further, in the battery pack shown in FIG. 5, a concave portion 10 for positioning is provided in a gap formed between the electronic component of the printed circuit board 6 and the PTC. As shown in FIG. 4, the recess 10 prevents the elastic battery 11 from being elastically press-fitted in the state of being mounted on the mounting portion 8 of the electric device or the charger, and preventing the battery pack from coming off from the mounting portion 8. Therefore, Case 1
The battery pack having the concave portion 10 on the side of the battery pack can be mounted to the mounting section 8 so as not to come off easily. Further, by providing the recess 10 in the gap between the electronic component of the printed circuit board 6 and the PTC, there is a feature that the recess 10 can be provided by effectively utilizing the gap in the case 1. The battery pack of the present invention has a very simple structure and has the advantage that reverse connection of the battery pack, poor contact and short-circuit can be effectively prevented. This is because the battery pack of the present invention is provided with an electrode terminal in the notch, and is provided with a reverse mounting prevention protrusion adjacent to the electrode terminal and extending in the direction of the tip of the case. The reverse mounting prevention projection not only prevents the battery pack from being set in the mounting portion by reversing the + and-of the battery pack, but also effectively prevents a short circuit of the electrode terminal provided in the notch. The electrode terminals provided on both sides of the case are electrically connected by sliding a power supply terminal provided on an electric device or the like when the battery pack is inserted into the mounting portion. For this reason,
It is necessary to make the opening larger than the electrode terminal provided on the front end surface of the case, and there is a disadvantage that a short circuit is easily caused. The battery pack of the present invention eliminates this drawback by the reverse mounting prevention projection provided in the notch having the electrode terminal. The reverse mounting prevention protrusion is used not only to prevent reverse connection of + and-of the battery pack but also to a part for preventing a short circuit of the electrode terminal. The reverse mounting prevention projection prevents the electrode terminal from being short-circuited because the reverse mounting prevention projection protruding from the notch pushes out a metal piece or the like that is going to come into contact with the electrode terminal so as not to come into contact therewith.
【図面の簡単な説明】
【図１】従来のパック電池を示す斜視図
【図２】従来の他の形状のパック電池の斜視図
【図３】従来の他の形状のパック電池の斜視図
【図４】本発明の実施の形態のパック電池の斜視図
【図５】図４に示すパック電池の断面斜視図
【図６】図４に示すパック電池の＋−を逆にして装着部
にセットする状態を示す斜視図
【図７】図４に示すパック電池の＋−を逆にして装着部
にセットする状態を示す斜視図
【図８】本発明の他の実施の形態のパック電池を示す斜
視図
【符号の説明】
１…ケース
２…電極端子
３…切欠
４…二次電池
５…逆装着阻止突起
６…プリント基板
７…保護素子
８…装着部 ８Ａ…凸部
９…電極窓
１０…凹部
１１…弾性片BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing a conventional battery pack. FIG. 2 is a perspective view of another conventional battery pack. FIG. 3 is a perspective view of another conventional battery pack. FIG. 4 is a perspective view of the battery pack according to the embodiment of the present invention. FIG. 5 is a sectional perspective view of the battery pack shown in FIG. 4. FIG. 6 is a battery pack shown in FIG. FIG. 7 is a perspective view showing a state in which the battery pack shown in FIG. 4 is set in a mounting part with +/− reversed. FIG. 8 shows a battery pack in another embodiment of the present invention. 1: case 2 ... electrode terminal 3 ... notch 4 ... rechargeable battery 5 ... reverse mounting prevention protrusion 6 ... printed circuit board 7 ... protective element 8 ... mounting part 8A ... convex part 9 ... electrode window 10 ... Recess 11 ... elastic piece
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) H01M 2/10 ──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. 7 , DB name) H01M 2/10
Claims (1)
とする角型で、ケース（１）の先端部の両側面と両端面
に表出したＬ字状に電極端子（２）が設けられており、
さらに、ケース（１）の先端部には、充電器や電機機器
等の装着部（８）に装着されるときに、＋−の電極端子
（２）が逆になる状態で装着されるのを阻止するための
切欠（３）が、電極端子（２）が設けられている少なく
とも一方の側面に設けられており、この切欠（３）が充
電器や電機機器等の装着部（８）に設けられている凸部
（８Ａ）に案内されて装着されるように構成されたパッ
ク電池において、 少なくとも片方の電極端子（２）はケース（１）の切欠
（３）に配設されており、電極端子（２）に隣接し、か
つ、ケース（１）の先端方向に延長して、＋−の逆挿入
を阻止する逆装着阻止突起（５）が切欠（３）に設けら
れており、この逆装着阻止突起（５）は、切欠（３）の
上縁に沿って設けられることによって、ケースの側面か
ら突出することなく切欠（３）から突出しており、この
逆装着阻止突起（５）によって、切欠（３）に設けられ
た電極端子（２）のショートが防止されるように構成さ
れてなることを特徴とするパック電池。(1) The outer shape of the case (1) is a rectangular shape having a rectangular cross-sectional shape, and is formed on both side surfaces and both end surfaces of the distal end portion of the case (1). The exposed L-shaped electrode terminal (2) is provided,
Furthermore, the case (1) should be attached to the tip of the case (1) in a state where the + and-electrode terminals (2) are reversed when the case (1) is mounted on the mounting part (8) of a charger, an electric appliance or the like. A notch (3) for blocking is provided on at least one side where the electrode terminal (2) is provided, and the notch (3) is provided on a mounting portion (8) of a charger, an electric device, or the like. In the battery pack configured to be guided and mounted on the convex portion (8A) provided, at least one of the electrode terminals (2) is disposed in the notch (3) of the case (1). adjacent to the terminal (2), and extends to the tip direction of the case (1), + - reverse mounting blocking projection for preventing reverse insertion (5) is provided in the notch (3), the reverse The mounting prevention protrusion (5) has a notch (3).
By being provided along the upper edge, the side of the case
Projecting from the notch (3) without protruding from the notch (3), and the reverse mounting prevention protrusion (5) is configured to prevent short-circuit of the electrode terminal (2) provided in the notch (3). Battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20563395A JP3505286B2 (en) | 1995-08-11 | 1995-08-11 | Battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20563395A JP3505286B2 (en) | 1995-08-11 | 1995-08-11 | Battery pack |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0955196A JPH0955196A (en) | 1997-02-25 |
| JP3505286B2 true JP3505286B2 (en) | 2004-03-08 |
Family
ID=16510128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20563395A Expired - Fee Related JP3505286B2 (en) | 1995-08-11 | 1995-08-11 | Battery pack |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3505286B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7476216B2 (en) | 2002-10-15 | 2009-01-13 | Nippon Shika Yakuhin Co., Ltd. | Electric syringe for dental anesthetic |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1276525C (en) | 2001-07-24 | 2006-09-20 | 索尼公司 | Method for preventing erroneous mounting of mounting part on main body device, mounting part and battery pack used for this |
| JP3925120B2 (en) * | 2001-07-24 | 2007-06-06 | ソニー株式会社 | Method for preventing erroneous mounting of mounting parts on main body side equipment and mounting parts used therefor |
| JP4123516B2 (en) | 2003-12-26 | 2008-07-23 | ソニー株式会社 | Battery device |
| DE102004031975A1 (en) * | 2004-07-01 | 2006-01-19 | Varta Microbattery Gmbh | Galvanic element |
| KR100686860B1 (en) * | 2005-11-02 | 2007-02-26 | 삼성에스디아이 주식회사 | Lithium rechargeable battery and electric/electronic device set using the same for power resource |
| JP5092351B2 (en) * | 2006-10-26 | 2012-12-05 | 日本電気株式会社 | Mobile terminal device |
| JP2010103103A (en) * | 2008-09-26 | 2010-05-06 | Panasonic Corp | Battery pack holding mechanism, electronic device |
| JP6369497B2 (en) * | 2015-02-25 | 2018-08-08 | ソニー株式会社 | A combination of a battery and a device to which the battery is attached |
| CN111477776B (en) * | 2020-04-24 | 2021-04-23 | 珠海格力电器股份有限公司 | Battery box cover, battery box and temperature measuring gun |
-
1995
- 1995-08-11 JP JP20563395A patent/JP3505286B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7476216B2 (en) | 2002-10-15 | 2009-01-13 | Nippon Shika Yakuhin Co., Ltd. | Electric syringe for dental anesthetic |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0955196A (en) | 1997-02-25 |
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