JPH0638157U - Battery pack - Google Patents
Battery packInfo
- Publication number
- JPH0638157U JPH0638157U JP7528792U JP7528792U JPH0638157U JP H0638157 U JPH0638157 U JP H0638157U JP 7528792 U JP7528792 U JP 7528792U JP 7528792 U JP7528792 U JP 7528792U JP H0638157 U JPH0638157 U JP H0638157U
- Authority
- JP
- Japan
- Prior art keywords
- terminal
- battery
- batteries
- ptc element
- cap portion
- 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.)
- Granted
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Classifications
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- Y02E60/12—
Abstract
(57)【要約】
【目的】 小型化が可能な組電池の提供を目的としてい
る。
【構成】 複数の電池を有し、且つこれら電池のうち隣
接する２つの電池間には、一方の電池の凸状端子と接続
された第１端子２と、他方の電池の平状端子と接続され
た第２端子４と、これら両端子間に配置されたＰＴＣ素
子３とから成るスイッチング手段が設けられた組電池に
おいて、上記第１端子２には上記一方の電池の凸状端子
より若干大径のキャップ部２ａが形成されて、このキャ
ップ部２ａが上記凸状端子を覆うように構成され、且つ
上記ＰＴＣ素子３は上記第１端子２のキャップ部２ａよ
り若干大径の孔３ａを有し上記キャップ部２ａが挿通さ
れるように構成されていることを特徴とする。
(57) [Summary] [Purpose] The purpose is to provide a battery pack that can be miniaturized. [Structure] A plurality of batteries, and between two adjacent batteries among these batteries, a first terminal 2 connected to a convex terminal of one battery and a flat terminal of the other battery connected In the assembled battery provided with the switching means composed of the second terminal 4 and the PTC element 3 arranged between the two terminals, the first terminal 2 is slightly larger than the convex terminal of the one battery. A cap portion 2a having a diameter is formed so that the cap portion 2a covers the convex terminal, and the PTC element 3 has a hole 3a having a diameter slightly larger than that of the cap portion 2a of the first terminal 2. However, it is characterized in that the cap portion 2a is inserted.
Description
【０００１】[0001]
本考案は組電池に関し、特にＰＴＣ素子を有する組電池のＰＴＣ素子の取り付 け構造の改良に関する。 BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an assembled battery, and more particularly to improvement of a PTC element mounting structure of an assembled battery having a PTC element.
【０００２】[0002]
近年、ニッケル−カドミウム電池、ニッケル−水素電池、リチウム電池等の各 種の電池が提案されており、且つこれらの電池を複数本組み合わせた組電池が、 ＶＴＲ関連機器、ＯＡ関連機器、通信機器、電動工具、測定機器、或いはカメラ 等の分野で用いられている。 In recent years, various types of batteries such as nickel-cadmium batteries, nickel-hydrogen batteries, and lithium batteries have been proposed, and an assembled battery obtained by combining a plurality of these batteries is used for VTR-related equipment, OA-related equipment, communication equipment, It is used in the fields of electric tools, measuring instruments, and cameras.
【０００３】 ところで、このような分野で用いられる組電池においては、ショート等を生じ た場合に大電流が流れるのを防止する必要がある。したがって、従来より、大電 流が流れるのを阻止する機能を有するＰＴＣ素子が設けられている組電池がある 。 この場合、具体的なＰＴＣ素子の取り付け構造としては、図７及び図８に示す ように、方形状を成すＰＴＣ素子１００の上下両面には、隣接する２つの電池の 各端子１０３・１０４に接続される第１端子１０１と第２端子１０２とが設けら れ、且つこれらの端子１０１・１０２を覆うように絶縁板１０５・１０６が配置 されている。By the way, in an assembled battery used in such a field, it is necessary to prevent a large current from flowing when a short circuit or the like occurs. Therefore, conventionally, there is an assembled battery provided with a PTC element having a function of preventing a large current from flowing. In this case, as a concrete mounting structure of the PTC element, as shown in FIGS. 7 and 8, the upper and lower surfaces of the PTC element 100 having a rectangular shape are connected to the terminals 103 and 104 of two adjacent batteries. A first terminal 101 and a second terminal 102 are provided, and insulating plates 105 and 106 are arranged so as to cover these terminals 101 and 102.
【０００４】[0004]
しかしながら、上記従来の構造では、図８に示すように、絶縁板１０５・１０ ６とＰＴＣ素子１００との厚みＬ10だけ突出するため、組電池自体の高さが大き くなる。この結果、組電池の小型化という市場ニーズに対応することができない という課題を有していた。However, in the above-mentioned conventional structure, as shown in FIG. 8, the height of the assembled battery itself becomes large because the insulating plates 105 and 106 and the PTC element 100 project by the thickness L 10 . As a result, there was a problem that it was not possible to meet the market needs for miniaturization of assembled batteries.
【０００５】 本考案は係る現状を考慮してなされたものであって、小型化が可能な組電池の 提供を目的としている。The present invention has been made in consideration of the present situation, and an object thereof is to provide an assembled battery which can be miniaturized.
【０００６】[0006]
本考案は上記目的を達成するために、複数の電池を有し、且つこれら電池のう ち隣接する２つの電池間には、一方の電池の凸状端子と接続された第１端子と、 他方の電池の平状端子と接続された第２端子と、これら両端子間に配置されたＰ ＴＣ素子とから成るスイッチング手段が設けられた組電池において、上記第１端 子には上記一方の電池の凸状端子より若干大径のキャップ部が形成されて、この キャップ部が上記凸状端子を覆うように構成され、且つ上記ＰＴＣ素子は上記第 １端子のキャップ部より若干大径の孔を有し上記キャップ部が挿通されるように 構成されていることを特徴とする。 In order to achieve the above-mentioned object, the present invention has a plurality of batteries, and between two adjacent batteries among these batteries, a first terminal connected to a convex terminal of one battery and another battery. Of the battery, the second terminal connected to the flat terminal of the battery, and the switching means including the PTC element arranged between the two terminals, wherein the first terminal is the one battery. Is formed so as to cover the convex terminal, and the PTC element has a hole slightly larger in diameter than the cap portion of the first terminal. It is characterized in that the cap portion is configured to be inserted.
【０００７】[0007]
上記構成であれば、第１端子のキャップ部が電池の凸状端子を覆い、且つこの キャップ部がＰＴＣ素子の孔を挿通するので、従来デッドスペースとなっていた 電池の凸状端子の高さ部分にＰＴＣ素子の厚みが吸収されることになる。したが って、組電池の高さはＰＴＣ素子を設けない場合と略同等となる。 With the above configuration, since the cap portion of the first terminal covers the convex terminal of the battery and the cap portion is inserted through the hole of the PTC element, the height of the convex terminal of the battery, which has conventionally been a dead space, is increased. The thickness of the PTC element is absorbed by the portion. Therefore, the height of the assembled battery is substantially the same as that when the PTC element is not provided.
【０００８】 加えて、ＰＴＣ素子と両端子とから構成されるスイッチング手段の配置は、単 に第１端子のキャップ部を電池の凸状端子に被せるだけで良いので、スイッチン グ手段の位置決めが極めて容易となる。In addition, the arrangement of the switching means composed of the PTC element and both terminals can be achieved by simply covering the convex terminal of the battery with the cap portion of the first terminal. It will be extremely easy.
【０００９】[0009]
本考案の一実施例を、図１〜図６に基づいて、以下に説明する。図１は本考案 の組電池に用いられるスイッチング手段の斜視図、図２は図１のスイッチング手 段の分解斜視図、図３は図１のスイッチング手段の断面斜視図、図４は本考案の 組電池の上面図、図５は本考案の組電池の正面図、図６は本考案の組電池の要部 断面図である。 An embodiment of the present invention will be described below with reference to FIGS. 1 is a perspective view of a switching means used in the assembled battery of the present invention, FIG. 2 is an exploded perspective view of the switching means of FIG. 1, FIG. 3 is a sectional perspective view of the switching means of FIG. 1, and FIG. FIG. 5 is a top view of the assembled battery, FIG. 5 is a front view of the assembled battery of the present invention, and FIG. 6 is a sectional view of a main part of the assembled battery of the present invention.
【００１０】 図１に示すように、スイッチング手段１は、第１端子２とＰＴＣ素子３と第２ 端子４とから構成されている。 上記第１端子２は円板状を成すと共に、その中央部に凸状のキャップ部２ａが 形成されている。このキャップ部２ａの内径Ｌ1 は、図６に示すように、電池９ の正極９ａの直径Ｌ2 より若干大きくなるように構成されており、これにより第 １端子２を電池９の正極９ａに容易に被せることが可能となる。As shown in FIG. 1, the switching means 1 is composed of a first terminal 2, a PTC element 3, and a second terminal 4. The first terminal 2 has a disc shape, and a convex cap portion 2a is formed in the center thereof. As shown in FIG. 6, the inner diameter L 1 of the cap portion 2a is configured to be slightly larger than the diameter L 2 of the positive electrode 9a of the battery 9 so that the first terminal 2 is connected to the positive electrode 9a of the battery 9. It is possible to cover easily.
【００１１】 上記ＰＴＣ素子３はリング状を成しており、ショート等が生じた場合に大電流 が流れるのを阻止する役目を有する。また、図２に示すように、ＰＴＣ素子３の 孔径Ｌ3 は、上記第１端子２のキャップ部２ａの外径Ｌ4 より若干大きくなるよ うに形成されており、且つ、ＰＴＣ素子３の高さＬ5 は、第１端子２のキャップ 部２ａの高さＬ6 と略同等となるように構成されている。The PTC element 3 has a ring shape and has a role of preventing a large current from flowing when a short circuit or the like occurs. Further, as shown in FIG. 2, pore size L 3 of the PTC element 3, the it is by Uni formed slightly larger than the outer diameter L 4 of the first terminal 2 of the cap 2a, and, of the PTC element 3 High is L 5 represents, is configured such that the height L 6 and substantially equal to the first terminal 2 of the cap portion 2a.
【００１２】 上記第２端子４は、円弧状の第１接続部４ａと、この第１接続部４ａの外周か ら延びる第２接続部４ｂとから成り、上記第１接続部４ａは上記ＰＴＣ素子３に 固定される一方、上記第２接続部４ｂは、図４に示すように、隣接する他の電池 １０の負極１０ａに接続されている。 上記構造のスイッチング手段１は、図４及び図５に示すように、直列接続され た４本の電池８〜１１のうち中央部に位置する２本の電池９・１０間に設けられ ている。また、電池８と電池９、及び電池１０と電池１１とは、それぞれ連結タ ブ１２・１３により接続されており、更に電池８の他端子と電池１１の他端子と には、それぞれ外部取出端子１４・１５が接続されている。The second terminal 4 includes an arc-shaped first connecting portion 4a and a second connecting portion 4b extending from the outer circumference of the first connecting portion 4a, and the first connecting portion 4a is the PTC element. While being fixed to No. 3, the second connecting portion 4b is connected to the negative electrode 10a of another adjacent battery 10 as shown in FIG. As shown in FIGS. 4 and 5, the switching means 1 having the above structure is provided between the two batteries 9 and 10 located in the center of the four batteries 8 to 11 connected in series. Further, the batteries 8 and 9 and the batteries 10 and 11 are connected by connecting tabs 12 and 13, respectively. Further, the other terminals of the battery 8 and the other terminals of the battery 11 are connected to external extraction terminals, respectively. 14 and 15 are connected.
【００１３】 また、上記電池８〜１１は、端子部を除き、それぞれ熱収縮チューブ１６によ り覆われており、更に、４本の電池８〜１１はテープ１７により固定されている 。加えて、４本の電池８〜１１、前記スイッチング手段１、前記連結タブ１２・ １３、及び前記外部取出端子１４・１５の一部は外装チューブ１８により覆われ ており、これによって短絡等を防止している。The batteries 8 to 11 are covered with a heat-shrinkable tube 16 except for the terminals, and the four batteries 8 to 11 are fixed with a tape 17. In addition, the four batteries 8 to 11, the switching means 1, the connection tabs 12 and 13, and a part of the external output terminals 14 and 15 are covered with an exterior tube 18, which prevents a short circuit or the like. is doing.
【００１４】 尚、上記第１端子２と電池９との間には、図６に示すように、絶縁リング２０ が設けられている。 ここで、上記構成の組電池の製造方法について、以下に説明する。 先ず、ＰＴＣ素子３の孔３ａに第１端子２のキャップ部２ａを挿通した後、Ｐ ＴＣ素子３の一方の面に第１端子２を電気溶接すると共に、ＰＴＣ素子３の他方 の面に第２端子４を載置した後、両者を電気溶接する。これにより、スイッチン グ手段１が作製される。また、この工程と並行して、各電池８〜１１を熱収縮チ ューブ１６で覆った後、４本の電池８〜１１の正負極が交互に逆向きとなるよう に電池８〜１１を配置する。次に、４本の電池８〜１１をテープ１７により固定 する。次いで、電池９の正極に、絶縁リング２０及びスイッチング手段１の第１ 端子２を順次被せた後、電池９の正極と第１端子２及び電池１０の負極と第２端 子４とを電気溶接する。更に、電池８の正極と電池９の負極、及び電池１０の正 極と電池１１の負極とに、それぞれ連結タブ１２・１３を電気溶接し、且つ電池 ８の負極と電池１１の正極とに外部取出端子１４・１５を電気溶接する。しかる 後、電池８〜１１や上記スイッチング手段１等を外装チューブ１８で覆う。An insulating ring 20 is provided between the first terminal 2 and the battery 9 as shown in FIG. Here, a method for manufacturing the assembled battery having the above configuration will be described below. First, after inserting the cap portion 2a of the first terminal 2 into the hole 3a of the PTC element 3, the first terminal 2 is electrically welded to one surface of the PTC element 3 and the other surface of the PTC element 3 is first welded. After mounting the two terminals 4, both are electrically welded. As a result, the switching means 1 is manufactured. In addition, in parallel with this step, after covering each of the batteries 8 to 11 with the heat shrinkable tube 16, the batteries 8 to 11 are arranged so that the positive and negative electrodes of the four batteries 8 to 11 are alternately reversed. To do. Next, the four batteries 8 to 11 are fixed with the tape 17. Then, the positive electrode of the battery 9 is sequentially covered with the insulating ring 20 and the first terminal 2 of the switching means 1, and then the positive electrode of the battery 9 and the first terminal 2 and the negative electrode of the battery 10 and the second terminal 4 are electrically welded. To do. Further, the connection tabs 12 and 13 are electrically welded to the positive electrode of the battery 8 and the negative electrode of the battery 9 and to the positive electrode of the battery 10 and the negative electrode of the battery 11, respectively, and externally connected to the negative electrode of the battery 8 and the positive electrode of the battery 11. Electrically weld the lead terminals 14 and 15. Thereafter, the batteries 8 to 11, the switching means 1 and the like are covered with the outer tube 18.
【００１５】 ここで、上記のようにして作製した組電池では、電池９の正極に、正極より低 い第１端子２のキャップ部２ａが被され、且つこのキャップ部２ａの高さＬ6 と 略同等の厚みＬ5 を有するＰＴＣ素子３に、キャップ部２ａが挿通されるように なっている。したがって、図６に示すように、従来デッドスペースとなっていた 電池の正極の高さにＰＴＣ素子３の厚みＬ5 が吸収されるため、組電池の高さが ＰＴＣ素子３を設けない場合と略同等となる。Here, in the assembled battery manufactured as described above, the positive electrode of the battery 9 is covered with the cap portion 2a of the first terminal 2 lower than the positive electrode, and the height L 6 of the cap portion 2a is The cap portion 2a is adapted to be inserted into the PTC element 3 having a substantially equal thickness L 5 . Therefore, as shown in FIG. 6, since the thickness L 5 of the PTC element 3 is absorbed by the height of the positive electrode of the battery, which has conventionally become a dead space, the height of the assembled battery is not provided with the PTC element 3. It is almost the same.
【００１６】 加えて、ＰＴＣ素子３を含むスイッチング手段１の配置は、単に第１端子２の キャップ部２ａを電池９の正極９ａに被せるだけで良いので、スイッチング手段 １の位置決めが、極めて容易となる。 尚、上記実施例では第２端子４は、円弧状の第１接続部４ａと、この第１接続 部４ａの外周から延びる第２接続部４ｂとから構成されているが、このような形 状に限定されるものではなく、第１接続部４ａをリング状としても良いし、更に 第１端子２と接触しないならばＴ字状やＹ字状としても良いことは勿論である。In addition, the switching means 1 including the PTC element 3 can be arranged by simply covering the positive electrode 9a of the battery 9 with the cap portion 2a of the first terminal 2, so that the positioning of the switching means 1 is extremely easy. Become. In the above embodiment, the second terminal 4 is composed of the arc-shaped first connecting portion 4a and the second connecting portion 4b extending from the outer periphery of the first connecting portion 4a. However, the first connecting portion 4a may be formed in a ring shape, or may be formed in a T shape or a Y shape if it does not contact the first terminal 2.
【００１７】 また、上記実施例ではＰＴＣ素子３と両端子２・４との固定を電気溶接にて行 っているが、これに限定するものではなく、半田付け等の方法で行っても良いこ とは勿論である。Further, although the PTC element 3 and both terminals 2 and 4 are fixed by electric welding in the above-mentioned embodiment, the present invention is not limited to this, and a method such as soldering may be used. This is of course.
【００１８】[0018]
以上説明したように本考案によれば、従来デッドスペースとなっていた電池の 凸状端子の高さ部分にＰＴＣ素子の厚みが吸収されるため、組電池の高さがＰＴ Ｃ素子を設けない場合と略同等となる。したがって、市場ニーズである組電池の 小型化を達成することが可能となるといった効果がある。 As described above, according to the present invention, the height of the PTC element is absorbed in the height of the convex terminal of the battery, which has conventionally been a dead space, so that the height of the assembled battery does not include the PTC element. It is almost the same as the case. Therefore, there is an effect that it is possible to achieve the downsizing of the assembled battery, which is a market need.
【００１９】 加えて、ＰＴＣ素子及び両端子から成るスイッチング手段の配置は、単に第１ 端子のキャップ部を電池の凸状端子に被せるだけで良いので、スイッチング手段 の位置決めが極めて容易となる。したがって、組電池の製造が容易となるといっ た効果も併せて奏する。In addition, as for the arrangement of the switching means composed of the PTC element and both terminals, it suffices to simply cover the cap terminal portion of the first terminal on the convex terminal of the battery, so that the positioning of the switching means becomes extremely easy. Therefore, there is an effect that the manufacturing of the assembled battery becomes easy.
【図１】本考案の組電池に用いられるスイッチング手段
の斜視図である。FIG. 1 is a perspective view of a switching means used in an assembled battery of the present invention.
【図２】図１のスイッチング手段の分解斜視図である。FIG. 2 is an exploded perspective view of the switching means of FIG.
【図３】図１のスイッチング手段の断面斜視図である。3 is a cross-sectional perspective view of the switching means of FIG.
【図４】本考案の一例に係る組電池の上面図である。FIG. 4 is a top view of an assembled battery according to an example of the present invention.
【図５】本考案の一例に係る組電池の正面図である。FIG. 5 is a front view of an assembled battery according to an example of the present invention.
【図６】本考案の一例に係る組電池の要部断面図であ
る。FIG. 6 is a cross-sectional view of essential parts of an assembled battery according to an example of the present invention.
【図７】従来の組電池の上面図である。FIG. 7 is a top view of a conventional assembled battery.
【図８】従来の組電池の拡大正面図である。FIG. 8 is an enlarged front view of a conventional assembled battery.
１ スイッチング手段 ２ 第１端子 ２ａ キャップ部 ３ ＰＴＣ素子 ４ 第２端子 ８〜１１ 電池 DESCRIPTION OF SYMBOLS 1 Switching means 2 1st terminal 2a Cap part 3 PTC element 4 2nd terminal 8-11 Battery
Claims (1)
ち隣接する２つの電池間には、一方の電池の凸状端子と
接続された第１端子と、他方の電池の平状端子と接続さ
れた第２端子と、これら両端子間に配置されたＰＴＣ素
子とから成るスイッチング手段が設けられた組電池にお
いて、上記第１端子には上記一方の電池の凸状端子より
若干大径のキャップ部が形成されて、このキャップ部が
上記凸状端子を覆うように構成され、且つ上記ＰＴＣ素
子は上記第１端子のキャップ部より若干大径の孔を有し
上記キャップ部が挿通されるように構成されていること
を特徴とする組電池。1. A first terminal having a plurality of batteries, and between two adjacent batteries among these batteries, a first terminal connected to a convex terminal of one battery and a flat terminal of the other battery. In an assembled battery provided with a switching means composed of a connected second terminal and a PTC element arranged between the two terminals, the first terminal has a diameter slightly larger than that of the convex terminal of the one battery. A cap portion is formed, the cap portion is configured to cover the convex terminal, and the PTC element has a hole slightly larger in diameter than the cap portion of the first terminal, and the cap portion is inserted therethrough. An assembled battery characterized in that it is configured as follows.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1992075287U JP2585011Y2 (en) | 1992-10-29 | 1992-10-29 | Switching means and battery pack incorporating switching means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1992075287U JP2585011Y2 (en) | 1992-10-29 | 1992-10-29 | Switching means and battery pack incorporating switching means |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0638157U true JPH0638157U (en) | 1994-05-20 |
| JP2585011Y2 JP2585011Y2 (en) | 1998-11-11 |
Family
ID=13571871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1992075287U Expired - Fee Related JP2585011Y2 (en) | 1992-10-29 | 1992-10-29 | Switching means and battery pack incorporating switching means |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2585011Y2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102064355A (en) * | 2009-11-16 | 2011-05-18 | 三星Sdi株式会社 | Secondary battery and method of manufacturing the same |
| WO2012086526A1 (en) * | 2010-12-20 | 2012-06-28 | Ｆｄｋ鳥取株式会社 | Externally attached ptc element unit and battery |
| JP2016127034A (en) * | 2014-12-26 | 2016-07-11 | Ｆｄｋ鳥取株式会社 | External ptc element and cylindrical battery |
| WO2017056988A1 (en) * | 2015-09-28 | 2017-04-06 | Ｌｉｔｔｅｌｆｕｓｅジャパン合同会社 | Protection element |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6382391U (en) * | 1986-11-17 | 1988-05-30 | ||
| JPS63158744A (en) * | 1986-12-23 | 1988-07-01 | Nippon Mektron Ltd | High output battery pack |
| JPH042451U (en) * | 1990-04-23 | 1992-01-10 |
-
1992
- 1992-10-29 JP JP1992075287U patent/JP2585011Y2/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6382391U (en) * | 1986-11-17 | 1988-05-30 | ||
| JPS63158744A (en) * | 1986-12-23 | 1988-07-01 | Nippon Mektron Ltd | High output battery pack |
| JPH042451U (en) * | 1990-04-23 | 1992-01-10 |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102064355A (en) * | 2009-11-16 | 2011-05-18 | 三星Sdi株式会社 | Secondary battery and method of manufacturing the same |
| CN102064304A (en) * | 2009-11-16 | 2011-05-18 | 三星Sdi株式会社 | Safety element assembly |
| JP2011108625A (en) * | 2009-11-16 | 2011-06-02 | Samsung Sdi Co Ltd | Secondary battery and method for manufacturing the same |
| EP2323200A3 (en) * | 2009-11-16 | 2011-10-05 | Samsung SDI Co., Ltd. | Secondary battery and method of manufacturing the same |
| EP2323199A3 (en) * | 2009-11-16 | 2011-10-05 | Samsung SDI Co., Ltd. | Safety element assembly |
| US9406923B2 (en) | 2009-11-16 | 2016-08-02 | Samsung Sdi Co., Ltd. | Secondary battery and method of manufacturing the same |
| WO2012086526A1 (en) * | 2010-12-20 | 2012-06-28 | Ｆｄｋ鳥取株式会社 | Externally attached ptc element unit and battery |
| JP2012133947A (en) * | 2010-12-20 | 2012-07-12 | Fdk Tottori Co Ltd | External ptc element unit and battery |
| JP2016127034A (en) * | 2014-12-26 | 2016-07-11 | Ｆｄｋ鳥取株式会社 | External ptc element and cylindrical battery |
| US10658777B2 (en) | 2014-12-26 | 2020-05-19 | Fdk Corporation | Externally-attached PTC element and tubular battery |
| WO2017056988A1 (en) * | 2015-09-28 | 2017-04-06 | Ｌｉｔｔｅｌｆｕｓｅジャパン合同会社 | Protection element |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2585011Y2 (en) | 1998-11-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |