JPH0537414Y2 - - Google Patents
Info
- Publication number
- JPH0537414Y2 JPH0537414Y2 JP1985183552U JP18355285U JPH0537414Y2 JP H0537414 Y2 JPH0537414 Y2 JP H0537414Y2 JP 1985183552 U JP1985183552 U JP 1985183552U JP 18355285 U JP18355285 U JP 18355285U JP H0537414 Y2 JPH0537414 Y2 JP H0537414Y2
- Authority
- JP
- Japan
- Prior art keywords
- lead plate
- battery
- board
- narrow
- width
- 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
Links
- 238000003466 welding Methods 0.000 claims description 11
- 229910000679 solder Inorganic materials 0.000 claims description 3
- 238000005452 bending Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
- 241000238557 Decapoda Species 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- HEPLMSKRHVKCAQ-UHFFFAOYSA-N lead nickel Chemical compound [Ni].[Pb] HEPLMSKRHVKCAQ-UHFFFAOYSA-N 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- Y02E60/12—
Landscapes
- Battery Mounting, Suspending (AREA)
Description
＜産業上の利用分野＞
この考案は基板実装用電池に関し、詳しくは、
電流取出し用のリード板を電池端子に取付けてな
る基板実装用電池において、リード板の形状を工
夫して基板実装状態での落下時などにおけるリー
ド板断線などが生じにくいようにしたものに関す
る。
＜従来の技術＞
最近の各種エレクトロニクス機器の普及に伴
い、これらの機器中に組込まれるICメモリ、時
計回路などの停電時バツクアツプ用電源として、
コイン型や円筒型などの電池をプリント基板など
に直接実装する方法が広く用いられている。この
種の基板実装用電池は、長期間安定した動作を行
なわせるため、電流取出し用の金属製リード板の
一端部を電池端子面にスポツト溶接やレーザ溶接
するなどして直接固着し、またリード板他端部は
基板端子穴に挿入後半田付け等によつて固定し取
付けて用いられることが多い。このような基板実
装用電池に用いられているリード板としては、第
４図Ａ，Ｂに示すように、基板への差込み部分と
なる他端部１０ａを基板端子穴に入る程度の狭幅
片に形成してなる等幅のリード板１０や、同様な
狭幅片を他端部１１ａの片側に有してなる等幅の
リード板１１などが知られている。尚図中「×」
部は電池端子への溶接部を指す。
＜考案が解決しようとする問題点＞
しかしながら、以上のような形状のリード板を
用いてなる基板実装用電池には次のような問題が
ある。即ち、例えばこの種の電池を基板実装状態
において取扱う際に誤つて落下した時のように、
大きな衝撃や振動が電池に加わつた場合、リード
板１０，１１のコーナー部１０ｄ，１１ｄや、狭
幅片が形成された他端部１０ａ，１１ａの一部、
あるいはリード板一端部の電池端子との溶接部な
どに、落下に伴う大きな応力集中が生じる結果、
これらの部分の少なくとも１つが集中的に破壊さ
れ、コーナー部１０ｄ，１１ｄや他端部１０ａ，
１１ａにおけるリード板断線、あるいはリード板
と電池端子との溶着不良などが起き易い。このよ
うな応力集中による断線や溶着不良の起こる部分
は各部分の形状や強度などによりほぼ決まつてし
まい、例えば第４図Ａに示すリード板１０のよう
にコーナー部１０ｄが切欠き状となつている場合
には、溶接強度や狭幅片の強度が十分である限
り、このコーナー部１０ｄが破断し易く、また第
４図Ｂに示すようにリード板１１のコーナー部１
１ｄが応力集中しにくい適宜なＲ状となつている
場合には、溶接部や狭幅片などが破断し易くな
る。
＜問題点を解決するための手段＞
以上の問題点に鑑みなされたこの考案の基板実
装用電池は、電池と、２枚のリード板を有し、
該２枚のリード板は、一端側を幅の狭い挾幅片
とし、他端側を幅広の溶接部とし、上記溶接部と
挾幅片の間の少なくとも一部は曲率半径の大きな
円弧状あるいは曲線状の切り欠きによる挾幅部と
した単一板状品であり、
該２枚のリード板の挾幅片はプリント基板の端
子穴に嵌挿して半田で固着され、該２枚のリード
板の溶接部は電池の電池端子にそれぞれ溶接固着
されてなることを要旨とする。
上記のような狭幅部はリード板幅方向の中央部
に設けてもよいし、リード板幅方向の片側あるい
は両側などの部位に設けるようにしてもよい。
また狭幅部は上記部位に独立して設けてもよい
し、リード板中央あるいは片側に設ける場合など
においては、狭幅部をリード板他端部の狭幅片と
連続して形成するようにしてもよい。
尚、このような狭幅部のより具体的な形成部位
や幅並びに狭幅部側部の具体的な曲率などは、リ
ード板の厚さ、リード板他端部の狭幅片の形状や
リード板の全体形状、更にはリード板と電池端子
との溶接性などを考慮して実験などにより適宜に
定めればよい。
＜作用＞
以上のような狭幅部を設けることにより、基板
落下時などにおいてこの狭幅部に応力がかかり易
くなるため、他部分における断線や溶接不良が極
めて生じにくくなる。そして、狭幅部の少なくと
も片側を円弧状あるいは曲線状に切断したので、
この狭幅部に加わつた応力は緩衝されて狭幅部の
特定個所に応力集中が生じることはなくなり、結
果として狭幅部全体がよじれあるいは曲がる等の
変形を起こすのみで破断することはほとんどなく
なる。
＜実施例＞
実施例 １
第１図Ａに示すように、幅ｔ１が５mmで厚さが
0.2mmのニツケル製リード板１を用い、その他端
部に、基板端子穴挿入用の幅ｔ２が1.5mmの挾幅
片１ａを形成し、反対側に溶接部１ｂを形成し、
挾幅片１ａと溶接部１ｂとの間は、その両側を大
きな曲率半径で切り欠いて挾幅部１ｃを形成して
いる。尚、同図においてｔ３，ｔ４は夫々８mm、
12mmである。
このようなリード板１の溶接部１ｂをCR2430
型の電池２の正・負極端子に夫々十分な強度でス
ポツト溶接（「×」部）して本考案に係る基板実
装用電池（本考案品Ａ）を作製した。次いで、こ
の本考案品Ａのリード板１の他端部１ａをプリン
ト基板３の端子穴３ａに挿入し、挿入後は半田４
によつて第１図Ｂに示すように同穴に固定した。
一方、第４図Ａに示したリード板１０を用いた
他は同様にして、従来タイプの基板実装用電池
（従来品Ｂ）を作り、同じくプリント基板に取付
けた。尚、第４図Ａにおいてｔ５，ｔ６は夫々15
mm、５mmである。
以上のようにして電池を夫々実装した２種類の
プリント基板を夫々５個ずつ（No.１〜５）作り、
それらの全体重量を夫々250gとした後、これら
を夫々75cmの高さから落下させ、正極側あるいは
負極側リード板のいずれか一方が断線するまでの
回数を調べた。結果は第１表に示した通りであ
り、本考案品Ａは従来品Ｂに較べて平均値で約３
倍の耐久性があり、断線するまでの落下回数が!?
かに多いことがわかる。尚、従来品Ｂの場合、断
線はすべてリード板１０のコーナー部１０ｄで起
こつた。
<Industrial Application Field> This invention relates to batteries for board mounting.
This invention relates to a board-mounted battery in which a lead plate for taking out current is attached to a battery terminal, and in which the shape of the lead plate is devised to prevent breakage of the lead plate when it is dropped while mounted on the board. <Conventional technology> With the recent spread of various electronic devices, IC memory, clock circuits, etc. built into these devices are being used as backup power sources during power outages.
A widely used method is to directly mount coin-shaped or cylindrical batteries on printed circuit boards. In order to ensure stable operation over a long period of time, this type of board-mounted battery has one end of a metal lead plate for current extraction directly fixed to the battery terminal surface by spot welding or laser welding. The other end of the plate is often inserted into a board terminal hole and then fixed and attached by soldering or the like. As shown in FIGS. 4A and 4B, the lead plate used in such a board-mounted battery is a narrow piece whose other end 10a, which is the part to be inserted into the board, fits into the terminal hole of the board. A uniform-width lead plate 10 formed by the same width, a uniform-width lead plate 11 having a similar narrow piece on one side of the other end 11a, and the like are known. In addition, "×" in the diagram
The part refers to the welded part to the battery terminal. <Problems to be solved by the invention> However, the board-mounted battery using the lead plate having the above shape has the following problems. In other words, for example, when this type of battery is accidentally dropped while being handled while mounted on a board,
When large shocks or vibrations are applied to the battery, the corners 10d, 11d of the lead plates 10, 11, the parts of the other ends 10a, 11a where the narrow strips are formed,
Alternatively, as a result of a large stress concentration occurring at the welded part of one end of the lead plate with the battery terminal, etc. due to the fall,
At least one of these parts is intensively destroyed, and the corner parts 10d and 11d and the other end part 10a,
Breakage of the lead plate at 11a or poor welding between the lead plate and the battery terminal are likely to occur. The areas where wire breakage or welding defects occur due to such stress concentration are almost determined by the shape and strength of each part. For example, as in the lead plate 10 shown in FIG. If the welding strength and the strength of the narrow piece are sufficient, this corner portion 10d is likely to break, and as shown in FIG. 4B, the corner portion 10d of the lead plate 11
If 1d has an appropriately rounded shape that makes it difficult to concentrate stress, welded parts, narrow pieces, etc. are likely to break. <Means for Solving the Problems> The board-mounted battery of this invention, which was created in view of the above problems, has a battery and two lead plates, one end of which is connected to the other. A narrow width piece is formed, the other end is a wide welded part, and at least a part of the gap between the welded part and the width piece is an arcuate or curved notch with a large radius of curvature. It is a single plate-shaped product, and the width pieces of the two lead plates are inserted into the terminal holes of the printed circuit board and fixed with solder, and the welded parts of the two lead plates are welded to the battery terminals of the battery. The gist is that it is fixed. The narrow portion as described above may be provided at the center in the width direction of the lead plate, or may be provided on one side or both sides in the width direction of the lead plate. Further, the narrow portion may be provided independently at the above-mentioned portion, or when provided in the center or on one side of the lead plate, the narrow portion may be formed continuously with the narrow piece at the other end of the lead plate. You can. Note that the more specific forming part and width of such a narrow part, as well as the specific curvature of the side part of the narrow part, depend on the thickness of the lead plate, the shape of the narrow piece at the other end of the lead plate, and the shape of the lead plate. It may be determined as appropriate through experiments, taking into account the overall shape of the plate, weldability between the lead plate and the battery terminal, etc. <Function> By providing the narrow width portion as described above, stress is easily applied to the narrow width portion when the board is dropped, so that disconnections and welding defects in other portions are extremely unlikely to occur. Then, at least one side of the narrow width part was cut into an arc shape or a curved shape, so
The stress applied to this narrow part is buffered, and stress concentration no longer occurs in specific parts of the narrow part, and as a result, the entire narrow part only deforms, such as twisting or bending, and is almost never ruptured. . <Example> Example 1 As shown in Figure 1A, the width t1 is 5 mm and the thickness is
Using a 0.2 mm nickel lead plate 1, at the other end, a clamp width piece 1a with a width t2 of 1.5 mm for insertion into a board terminal hole is formed, and a welded part 1b is formed on the opposite side.
Between the clamp width piece 1a and the welded part 1b, a clamp width part 1c is formed by cutting out both sides with a large radius of curvature. In addition, in the same figure, t3 and t4 are each 8 mm,
It is 12mm. The welded part 1b of such a lead plate 1 is made of CR2430.
A battery for mounting on a board according to the present invention (product A of the present invention) was prepared by spot welding the positive and negative terminals of the type battery 2 with sufficient strength (at the "x" parts). Next, insert the other end 1a of the lead plate 1 of this invention A into the terminal hole 3a of the printed circuit board 3, and after inserting the solder 4
was fixed in the same hole as shown in FIG. 1B. On the other hand, a conventional type board-mounted battery (conventional product B) was made in the same manner except that the lead plate 10 shown in FIG. 4A was used, and was similarly mounted on a printed board. In addition, in Fig. 4A, t5 and t6 are each 15
mm, 5 mm. In the above manner, two types of printed circuit boards each with batteries mounted thereon were made, five each (No. 1 to 5).
After setting the total weight of each to 250 g, each of these was dropped from a height of 75 cm, and the number of times until either the positive electrode side or the negative electrode side lead plate broke was determined. The results are shown in Table 1, and the average value of product A of the present invention is about 3 compared to conventional product B.
It's twice as durable and can only be dropped so many times before it breaks!?
It turns out that there are a lot of crabs. In the case of conventional product B, all the wire breaks occurred at the corner portions 10d of the lead plate 10.
【表】
実施例 ２〜４
第２図Ａ〜Ｃに示す３種類のリード板５〜７を
用いた他は実施例１と同様にして基板実装用電池
を作つた。即ち、リード板５はリード板両側を
夫々曲線状に切断してリード板中央に独立した狭
幅部５ｃを設けたものであり、リード板６はリー
ド板中央部を曲線状に切断し取除いてリード板両
側に狭幅部６ｃを形成したものであり、リード板
７はリード板片側を曲線状に２ケ所互い違いに切
断して略Ｓ字状に連なる狭幅部７ｃを形成したも
のである。
尚、以上はリード板他端部近傍を曲げることな
しにそのまま基板に装着する場合について説明し
たが、高さ方向に制限があり、リード板他端部近
傍を折曲する必要がある場合には、その折曲部は
第３図Ａ，Ｂに示すリード板８，９のように、狭
幅部８ｃと他端部８ａとの間でもよいし、狭幅部
９ｃ上でもよく、いずれの場合でも本考案の効果
はほぼ同様であることが知得されている。
＜考案の効果＞
以上のように構成されるこの考案の基板実装用
電池によれば、電池が溶接固着される広幅の溶接
部と、プリント基板とは半田付けで固定される幅
の狭い狭幅片との間の少なくとも一部が、曲率半
径の大きな円弧状あるいは曲線状の切り欠きによ
る狭幅部となつているから、基板装着状態などに
おいて衝撃や大きな振動が加わつた時でもリード
板に応力集中個所を生じなくすることができ、リ
ード板断線や溶着不良が生じにくい、信頼性の極
めて高い基板実装用電池を提供することができ
る。[Table] Examples 2 to 4 Batteries for board mounting were made in the same manner as in Example 1, except that three types of lead plates 5 to 7 shown in FIGS. 2A to 2C were used. That is, the lead plate 5 has an independent narrow width part 5c at the center of the lead plate by cutting both sides of the lead plate into a curved shape, and the lead plate 6 is obtained by cutting the center part of the lead plate into a curved shape and removing it. The lead plate 7 has narrow width parts 6c formed on both sides of the lead plate, and the lead plate 7 has narrow width parts 7c continuous in a substantially S-shape by cutting one side of the lead plate in a curved shape at two alternate locations. . The above description has been about the case where the lead plate is attached to the board as it is without bending the area near the other end, but if there is a limit in the height direction and it is necessary to bend the area near the other end of the lead plate. , the bent part may be between the narrow part 8c and the other end part 8a, as in the lead plates 8 and 9 shown in FIGS. 3A and 3B, or may be on the narrow part 9c, in either case. However, it is known that the effects of the present invention are almost the same. <Effects of the invention> According to the board-mounted battery of this invention constructed as described above, there is a wide welded part to which the battery is welded and fixed, and a narrow narrow part to which the printed circuit board is fixed by soldering. At least a part of the gap between the lead plate and the lead plate is a narrow part formed by an arcuate or curved notch with a large radius of curvature, so even when shock or large vibration is applied when the lead plate is attached to a board, stress is not applied to the lead plate. It is possible to provide an extremely reliable battery for mounting on a board, in which concentration points can be eliminated, lead plate breakage and poor welding are less likely to occur.
第１図Ａは実施例に用いるリード板を示した平
面図、第１図Ｂは実施例の基板装着状態を示した
部分断面図、第２図Ａ〜Ｃは夫々リード板の他例
を示した平面図、第３図Ａ，Ｂは夫々本考案に係
るリード板の折曲状態例を示した斜視図、第４図
Ａ，Ｂは夫々リード板の従来例を示した平面図で
ある。
１，５〜１１……リード板、３……プリント基
板、１ａ，５ａ〜９ａ……溶接部、１ｂ，５ｂ〜
９ｂ……狭幅片、１ｃ，５ｃ〜９ｃ……狭幅部。
FIG. 1A is a plan view showing a lead plate used in the example, FIG. 1B is a partial cross-sectional view showing the state of mounting the example on a board, and FIGS. 2A to C each show other examples of the lead plate. FIGS. 3A and 3B are perspective views showing examples of folded lead plates according to the present invention, and FIGS. 4A and 4B are plan views showing conventional examples of lead plates. 1, 5-11...Lead plate, 3...Printed circuit board, 1a, 5a-9a...Welding part, 1b, 5b-
9b...Narrow width piece, 1c, 5c to 9c...Narrow width portion.
Claims (1)
い挾幅片１ａ，５ａ〜９ａとし、他端側を幅広の
溶接部１ｂ，５ｂ〜９ｂとし、上記溶接部１ｂ，
５ｂ〜９ｂと挾幅片１ａ，５ａ〜９ａの間の少な
くとも一部は曲率半径の大きな円弧状あるいは曲
線状の切り欠きによる挾幅部１ｂ，５ｂ〜９ｂと
した単一板状品であり、 該２枚のリード板の挾幅片１ａ，５ａ〜９ａは
プリント基板３の端子穴３ａに嵌挿して半田４で
固着し、該２枚のリード板の溶接部１ｂ，５ｂ〜
９ｂは電池２の電池端子にそれぞれ溶接固着して
なる 基板実装用電池。[Claims for Utility Model Registration] It has a battery 2 and two lead plates 1, 5 to 9, and one end of the two lead plates 1, 5 to 9 has narrow width pieces 1a, 5a. ~9a, and the other end side is a wide welding part 1b, 5b~9b, and the welding part 1b,
5b to 9b and the clamp width pieces 1a, 5a to 9a are at least partially formed by a circular arc or curved notch with a large radius of curvature, and the clamp width parts 1b, 5b to 9b are single plate-shaped products; The width pieces 1a, 5a to 9a of the two lead plates are fitted into the terminal holes 3a of the printed circuit board 3 and fixed with solder 4, and the welded parts 1b, 5b to 9a of the two lead plates are
9b is a board-mounted battery that is welded and fixed to the battery terminals of battery 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985183552U JPH0537414Y2 (en) | 1985-11-28 | 1985-11-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985183552U JPH0537414Y2 (en) | 1985-11-28 | 1985-11-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6291353U JPS6291353U (en) | 1987-06-11 |
| JPH0537414Y2 true JPH0537414Y2 (en) | 1993-09-21 |
Family
ID=31130396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985183552U Expired - Lifetime JPH0537414Y2 (en) | 1985-11-28 | 1985-11-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0537414Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001185122A (en) * | 1999-12-24 | 2001-07-06 | Toshiba Battery Co Ltd | Battery with lead terminal |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4618577B2 (en) * | 2001-04-12 | 2011-01-26 | 染矢電線株式会社 | Wire connection terminal |
| JP5550842B2 (en) * | 2009-03-19 | 2014-07-16 | 日立マクセル株式会社 | Flat battery with lead terminal |
| JP6055983B2 (en) * | 2012-06-25 | 2017-01-11 | エリーパワー株式会社 | Battery current collector and lithium ion battery |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60131753A (en) * | 1983-07-25 | 1985-07-13 | メモリ−・プロテクシヨン・デイヴアイス・インコ−ポレ−テツド | Coil type battery holder |
| JPS6142892B2 (en) * | 1978-02-20 | 1986-09-24 | Matsushita Electric Ind Co Ltd |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5183641U (en) * | 1974-12-26 | 1976-07-05 | ||
| JPS58189564U (en) * | 1982-06-11 | 1983-12-16 | 松下電器産業株式会社 | Electrical component |
| JPS59182869U (en) * | 1983-05-24 | 1984-12-05 | ジエコ−株式会社 | dry battery holder |
| JPS6142892U (en) * | 1984-08-20 | 1986-03-19 | 松下電工株式会社 | Wiring board for rechargeable electrical equipment |
-
1985
- 1985-11-28 JP JP1985183552U patent/JPH0537414Y2/ja not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6142892B2 (en) * | 1978-02-20 | 1986-09-24 | Matsushita Electric Ind Co Ltd | |
| JPS60131753A (en) * | 1983-07-25 | 1985-07-13 | メモリ−・プロテクシヨン・デイヴアイス・インコ−ポレ−テツド | Coil type battery holder |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001185122A (en) * | 1999-12-24 | 2001-07-06 | Toshiba Battery Co Ltd | Battery with lead terminal |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6291353U (en) | 1987-06-11 |
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