JP3656310B2 - Battery contact terminals - Google Patents

Battery contact terminals Download PDF

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Publication number
JP3656310B2
JP3656310B2 JP05227596A JP5227596A JP3656310B2 JP 3656310 B2 JP3656310 B2 JP 3656310B2 JP 05227596 A JP05227596 A JP 05227596A JP 5227596 A JP5227596 A JP 5227596A JP 3656310 B2 JP3656310 B2 JP 3656310B2
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Japan
Prior art keywords
battery
contact
coil spring
contact plate
conical coil
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 - Lifetime
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JP05227596A
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Japanese (ja)
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JPH09223489A (en
Inventor
雅人 吉田
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Nikon Corp
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Nikon Corp
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    • 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

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  • Camera Bodies And Camera Details Or Accessories (AREA)
  • Battery Mounting, Suspending (AREA)

Description

【０００１】
【発明の属する技術分野】
本発明は、カメラの電池室や電池ケースに最適な電池の接点端子に関するものである。
【０００２】
【従来の技術】
従来より、カメラの電池室や電池ケース内の電池接点には、円錐コイルバネまたは板バネが設けてある。また、電池のプラスマイナスを逆に装填したときに導通することのないように、電池の逆装填防止として、電池のプラス側の円錐コイルバネまたは板バネの接点上には、絶縁部材を設けている。スペースやバネのへたり等を考慮すると、板バネより円錐コイルバネを使用する場合が多い。この円錐コイルバネを用いた従来の電池の接点端子を図７に示す。図７は、カメラの電池室のプラス側接点を示す断面図である。
【０００３】
図７中で、導通板７２は中央部に穴７２ａを備える。導通板７２は、２本の電池を導通させる。７１は、接点バネとしての円錐コイルバネである。７３は、接点板、７４は絶縁部材である。接点板７３は、軸７６にビス７５で固定され、電池の＋極と接触する。軸７６は、穴７２ａより径の小さい小径部７６ａと、穴７２ａより径の大きい大径部７６ｂとから成る。小径部７６ａは穴７２ａに通されていて、大径部７６ｂの存在により、図７の右方向には抜くことができない。軸７６は、接点バネ７１の負荷により、接点板７３が安定するように自由長より撓む長さになっている。絶縁部材７４は、突起部７４ａで接点板７３に加締められている。
【０００４】
【発明が解決しようとする課題】
しかしながら、上記の従来技術では、部品点数が多く、また構成が複雑になる点で改善余地があった。
【０００５】
本発明は、上記の問題点に鑑みてなされたもので、組立が容易であり簡単な構成で部品数も少ない電池の接点端子を提供することを目的とする。
【０００６】
【課題を解決するための手段】
この目的を達成するために、本発明の電池の接点端子は、電池室または電池ケース内のプラス極の電池接点となる円錐コイルバネ部（２１）と、円錐コイルバネ部の電池側の先端部（２１ｂ）に設けられ、該円錐コイルバネの最小径よりも大きな径部を有する円弧部（２１ｄ）と、電池の電極と接触する電池接点板（２２）と、電池接点板に設けられ、円弧部を引掛けて固定するための複数の曲げ部（２２ａ）とを具備し、曲げ部に円弧部が引掛けられて固定されるように構成されている。
【０００７】
【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。
【０００８】
図１および図２は、本発明による電池の接点端子の一実施例を示す斜視図および断面図である。図１および図２において、２１は接点バネの円錐コイルバネ、２２は円形の接点板、２３は中央部に穴部２３ｂを持つドーナツ状の絶縁部材、２４は絶縁部２３を接点板２２に固定する為の両面テープである。
【０００９】
ここで円錐コイルバネ２１の形状について図３〜図５で説明する。
【００１０】
図３はバネの側面図である。図３において円錐コイルバネ２１は、バネの最大径部２１ａより等ピッチで巻かれ、連続して径が小さくなり、最小径部２１ｂに至る。最小径部２１ｂからは、皿状に径を大きくして延びており、円弧部２１ｄを形成している。図４は円弧部２１ｄの側面図である。円弧部２１ｄは、バネ部と中心を同じにする円弧部２１ｄおよび最小径部２１ｂと、両者をつなぐ直線部２１ｅで構成されている。図５は円弧部２１ｄの他の例を示す側面図である。円弧部２１ｄは、バネ部と中心を同じにする円弧部２１ｄおよび最小径部２１ｂと、両者をつなぐ連続してＲが変化する連絡部２１ｆで構成されている。以上のように、円錐コイルバネ２１は、１本で円錐コイルバネ部とバネ先端部より延びる皿状の径の大きい部分を構成している。
【００１１】
図１および図２において、接点板２２には、外周方向に向いた曲げ部２２ａが等間隔で３カ所設けてある。この３カ所の曲げ部２２ａは、コイルバネ２１の先端の円弧部２１ｄを固定する為のものであり、曲げ部２２ａの円周方向の位置は円弧部２１ｄの大きさとほぼ同じである。図１のように、円弧部２１ｄは曲げ部２２ａに掛けられ固定されている。円弧部２１ｄの大きさは、不図示の電池室または電池ケースのスペースによって制限されるが、大きければ大きいほど組立作業は容易になる。また接点板２２とコイルバネ２１の固定には、電池の出し入れの際に円弧部２１ｄが曲げ部２２ａより外れることのないように、曲げ部２２ａに半田付けをすると尚良い。
【００１２】
２３は、中央部に穴部２３ｂを持つドーナツ形状の絶縁部材である。絶縁部材２３の穴２３ｂは、図６（ａ）のように電池のプラス極は接点板２２に接し、マイナス極は図６（ｂ）のように接点板２２に接することのない大きさになっている。即ち、電池の逆装填防止の機能を果たしている。また、絶縁部材２３には接点板２２との位置決め及びずれ防止の為に、接点板２２と嵌合する段差２３ａ（図２）が設けてあり、両面テープ２４により絶縁部材２３が接点板２２に固定される。バネ２１の円弧部２１ｄと曲げ部２２ａを半田付けする場合は、半田付けの後に、両面テープ２４で絶縁部材２３を接点板２２に固定すれば、絶縁部材が半田の熱によって変形する問題もない。
【００１３】
以上のように、円錐コイルバネのバネ部の先端に接点板に取付けやすいように径の大きい円弧部を設け、接点板にはコイルバネの円弧部を引っかける曲げ部を設けた為、接点板は円錐コイルバネに容易に取付ける事が可能となり、また簡単な構成で部品も少ない電池の逆装填機構を提供することが出来る。
【００１４】
【発明の効果】
以上のように、本発明の電池の接点端子によれば、円錐コイルバネ部の電池側の先端部（２１ｂ）に設けられ、該円錐コイルバネの最小径よりも大きな径部を有する円弧部（２１ｄ）を、曲げ部（２２ａ）に引掛けられて固定するようにしたので、組立が容易であり、簡単な構成で部品数も少ない電池の接点端子を提供することが可能となる。
【図面の簡単な説明】
【図１】本発明による電池の接点端子の一実施例を示す斜視図である。
【図２】本発明による電池の接点端子の一実施例を示す断面図である。
【図３】本発明による電池の接点端子の一実施例を示す正面図である。
【図４】本発明による電池の接点端子の一実施例を示す側面図である。
【図５】本発明による電池の接点端子の他の実施例を示す側面図である。
【図６】本発明による電池の接点端子の一実施例を示す断面図である。
【図７】従来の電池の接点端子の一例を示す断面図である。
【符号の説明】
２１ 円錐コイルバネ
２２ 電池接点板
２２ａ 曲げ部２２ａ
２３ 絶縁部材
２４ 両面テープ[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a battery contact terminal optimal for a battery compartment or battery case of a camera.
[0002]
[Prior art]
Conventionally, conical coil springs or leaf springs are provided at battery contacts in camera battery compartments and battery cases. Moreover, an insulating member is provided on the contact point of the conical coil spring or the leaf spring on the positive side of the battery so as to prevent reverse charging of the battery so as not to conduct when the positive and negative of the battery are reversely loaded. . Considering space and spring sag, conical coil springs are often used rather than leaf springs. A contact terminal of a conventional battery using this conical coil spring is shown in FIG. FIG. 7 is a cross-sectional view showing the positive side contact of the battery chamber of the camera.
[0003]
In FIG. 7, the conduction plate 72 has a hole 72a at the center. The conduction plate 72 conducts two batteries. 71 is a conical coil spring as a contact spring. 73 is a contact plate, and 74 is an insulating member. The contact plate 73 is fixed to the shaft 76 with a screw 75 and is in contact with the positive electrode of the battery. The shaft 76 includes a small diameter portion 76a having a diameter smaller than that of the hole 72a and a large diameter portion 76b having a diameter larger than that of the hole 72a. The small diameter portion 76a is passed through the hole 72a and cannot be pulled out in the right direction in FIG. 7 due to the presence of the large diameter portion 76b. The shaft 76 is bent to a length longer than the free length so that the contact plate 73 is stabilized by the load of the contact spring 71. The insulating member 74 is crimped to the contact plate 73 by a protrusion 74a.
[0004]
[Problems to be solved by the invention]
However, the above-described prior art has room for improvement in that the number of parts is large and the configuration is complicated.
[0005]
The present invention has been made in view of the above problems, and an object of the present invention is to provide a battery contact terminal that is easy to assemble, has a simple configuration, and has a small number of components.
[0006]
[Means for Solving the Problems]
In order to achieve this object, the battery contact terminal of the present invention includes a conical coil spring portion (21) serving as a positive electrode battery contact in the battery chamber or battery case, and a battery-side tip portion (21b) of the conical coil spring portion. ), The arc portion (21d) having a diameter larger than the minimum diameter of the conical coil spring, the battery contact plate (22) in contact with the battery electrode, and the battery contact plate. A plurality of bent portions (22a) for hanging and fixing, and an arc portion is hooked and fixed to the bent portion.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0008]
1 and 2 are a perspective view and a cross-sectional view showing an embodiment of a battery contact terminal according to the present invention. 1 and 2, 21 is a conical coil spring of a contact spring, 22 is a circular contact plate, 23 is a donut-shaped insulating member having a hole 23b in the center, and 24 is for fixing the insulating portion 23 to the contact plate 22. This is a double-sided tape.
[0009]
Here, the shape of the conical coil spring 21 will be described with reference to FIGS.
[0010]
FIG. 3 is a side view of the spring. In FIG. 3, the conical coil spring 21 is wound at an equal pitch from the maximum diameter portion 21a of the spring, and the diameter continuously decreases to reach the minimum diameter portion 21b. From the minimum diameter portion 21b, it extends in a dish shape with a larger diameter, forming an arc portion 21d. FIG. 4 is a side view of the arc portion 21d. The arc portion 21d is composed of an arc portion 21d and a minimum diameter portion 21b having the same center as that of the spring portion, and a linear portion 21e that connects the two. FIG. 5 is a side view showing another example of the arc portion 21d. The arc portion 21d includes an arc portion 21d and a minimum diameter portion 21b that have the same center as the spring portion, and a connecting portion 21f that continuously changes R and connects the two. As described above, the single conical coil spring 21 constitutes a conical coil spring portion and a dish-shaped large portion extending from the spring tip.
[0011]
1 and 2, the contact plate 22 is provided with three bent portions 22a facing the outer peripheral direction at equal intervals. The three bent portions 22a are for fixing the arc portion 21d at the tip of the coil spring 21, and the circumferential position of the bent portion 22a is substantially the same as the size of the arc portion 21d. As shown in FIG. 1, the arc portion 21d is fixed to the bent portion 22a. The size of the arc portion 21d is limited by the space of a battery chamber or a battery case (not shown), but the larger the size, the easier the assembly work. Further, for fixing the contact plate 22 and the coil spring 21, it is preferable to solder the bent portion 22a so that the arc portion 21d does not come off from the bent portion 22a when the battery is taken in and out.
[0012]
Reference numeral 23 denotes a donut-shaped insulating member having a hole 23b at the center. The hole 23b of the insulating member 23 has a size such that the positive electrode of the battery contacts the contact plate 22 as shown in FIG. 6A and the negative electrode does not contact the contact plate 22 as shown in FIG. 6B. ing. That is, it functions to prevent reverse loading of the battery. Further, the insulating member 23 is provided with a step 23 a (FIG. 2) that fits with the contact plate 22 in order to prevent positioning and displacement with the contact plate 22, and the insulating member 23 is made into the contact plate 22 by the double-sided tape 24. Fixed. When soldering the arc portion 21d and the bent portion 22a of the spring 21, if the insulating member 23 is fixed to the contact plate 22 with the double-sided tape 24 after soldering, there is no problem that the insulating member is deformed by the heat of the solder. .
[0013]
As described above, since the arc portion with a large diameter is provided at the tip of the spring portion of the conical coil spring so that it can be easily attached to the contact plate, and the bent portion that hooks the arc portion of the coil spring is provided on the contact plate, the contact plate is a conical coil spring. In addition, it is possible to provide a battery reverse loading mechanism with a simple configuration and few parts.
[0014]
【The invention's effect】
As described above, according to the contact terminal of the battery of the present invention, the arc portion (21d) provided at the tip (21b) on the battery side of the conical coil spring portion and having a diameter larger than the minimum diameter of the conical coil spring. Is fixed by being hooked on the bent portion (22a), so that it is easy to assemble, and it is possible to provide a battery contact terminal with a simple configuration and a small number of components.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an embodiment of a contact terminal of a battery according to the present invention.
FIG. 2 is a cross-sectional view showing an embodiment of a contact terminal of a battery according to the present invention.
FIG. 3 is a front view showing an embodiment of a contact terminal of a battery according to the present invention.
FIG. 4 is a side view showing an embodiment of a battery contact terminal according to the present invention.
FIG. 5 is a side view showing another embodiment of the contact terminal of the battery according to the present invention.
FIG. 6 is a cross-sectional view showing one embodiment of a contact terminal of a battery according to the present invention.
FIG. 7 is a cross-sectional view showing an example of a contact terminal of a conventional battery.
[Explanation of symbols]
21 Conical coil spring 22 Battery contact plate 22a Bending portion 22a
23 Insulating member 24 Double-sided tape

Claims (2)

電池室または電池ケース内のプラス極の電池接点となる円錐コイルバネ部と、
前記円錐コイルバネ部の電池側の先端部に設けられ、該円錐コイルバネの最小径よりも大きな径部を有する円弧部と、
電池の電極と接触する電池接点板と、
前記電池接点板に設けられ、前記円弧部を引掛けて固定するための複数の曲げ部とを具備し、
前記曲げ部に前記円弧部が引掛けられて固定されることを特徴とする電池の接点端子。A conical coil spring that is a positive battery contact in the battery chamber or battery case;
An arc portion provided at the battery-side tip of the conical coil spring portion and having a diameter portion larger than the minimum diameter of the conical coil spring;
A battery contact plate in contact with the electrode of the battery;
Provided on the battery contact plate, comprising a plurality of bent portions for hooking and fixing the arc portion,
A contact terminal of a battery, wherein the arc portion is hooked and fixed to the bent portion. 請求項１において、
前記電池接点板の電池接触面に設けられ、中央に穴部を持つ絶縁部材を更に具備し、
前記絶縁部材は、前記穴部に電池の正極が挿入されたときだけ、電池の正極と前記電池接点板とを接触させることにより、逆装填を防止することを特徴とする電池の接点端子。In claim 1,
Provided on the battery contact surface of the battery contact plate, further comprising an insulating member having a hole in the center;
The battery contact terminal according to claim 1, wherein the insulating member prevents reverse loading by contacting the battery positive electrode and the battery contact plate only when the battery positive electrode is inserted into the hole.
JP05227596A 1996-02-15 1996-02-15 Battery contact terminals Expired - Lifetime JP3656310B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP05227596A JP3656310B2 (en) 1996-02-15 1996-02-15 Battery contact terminals

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Application Number Priority Date Filing Date Title
JP05227596A JP3656310B2 (en) 1996-02-15 1996-02-15 Battery contact terminals

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JPH09223489A JPH09223489A (en) 1997-08-26
JP3656310B2 true JP3656310B2 (en) 2005-06-08

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JP5117454B2 (en) * 2009-07-22 2013-01-16 Ｈｏｙａ株式会社 Support structure for biasing member of lens barrel
JP5938825B2 (en) * 2012-03-27 2016-06-22 オプテックス株式会社 Reverse connection prevention structure for battery-powered object detection device

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