JP3667686B2

JP3667686B2 - Button-type battery holder for board mounting

Info

Publication number: JP3667686B2
Application number: JP2001354893A
Authority: JP
Inventors: 孝至筒井
Original assignee: NEC AccessTechnica Ltd
Current assignee: NEC Platforms Ltd
Priority date: 2001-11-20
Filing date: 2001-11-20
Publication date: 2005-07-06
Anticipated expiration: 2021-11-20
Also published as: JP2003157818A

Description

【０００１】
【発明の属する技術分野】
本発明は、プリント基板に実装され、かつ、ボタン形電池が装着される基板実装用ボタン形電池ホルダに関するものである。
【０００２】
【従来の技術】
図７は、従来の基板実装用ボタン形電池ホルダ（以下、単に電池ホルダと表す。）の斜視図を示し、図８は、この電池ホルダにボタン形電池を挿入する過程を示す縦断面図であって、図９は、ボタン形電池の側面図を示す。
【０００３】
図７および図８に示すように、従来の電池ホルダ１３は、ボタン形電池１を挿入するための開口部１４を上部に有し、自動実装機によってプリント基板１５に実装される。
【０００４】
また、この電池ホルダ１３は、底部の片側の負極側接触端子１６と底部の他側の正極側接触端子１７を有し、この負極側接触端子１７の下端の負極端子半田付け部１７ａと正極側接触端子１６の下端の正極端子半田付け部１６ａを介してプリント基板１５に実装される。
【０００５】
このうち、負極側接触端子１６は、電池ホルダ１３の底部の内側から上方に傾斜して突出した接触端子部１６ｂを有する。
【０００６】
電池ホルダ１３に装着されるボタン形電池１は、図９に示すように、ほぼ円盤状で側面形状がほぼ台形状をなし、この台形状の下面側が正極１ｂ，１ｃで上面側が負極１ａとなっており、図８の矢印Ａで示すように、開口部１４の斜め上方から正極１ｂ側を下向きにして挿入された後、さらに下方に押し下げられることによって、電池ホルダ１３の内部に横に収納される。
【０００７】
この電池ホルダ１３は、ボタン形電池１の外側面を固定するために対称的に対置する弧状の保持壁（ハウジング）１８Ａ、１８Ｂを有し、さらに、この保持壁１８Ａ、１８Ｂの内側からの上方への脱出を防ぐために、この保持壁１８Ａ、１８Ｂの上端の内周側に固定金具端子１９Ａ、１９Ｂ、１９Ｃ、１９Ｄを等間隔に配置しており、これらの固定金具端子１９Ａ、１９Ｂ、１９Ｃ、１９Ｄは、それぞれ正極側接触端子１７に接続されている。
【０００８】
ボタン形電池１と電池ホルダ１３の接触方法は、電池ホルダ１３の底面から上方に突出する接触端子部１６ｂにボタン形電池１の負極１ａを接触させるとともに、ボタン形電池１の側面の正極１ｃと上面の正極１ｂを、電池ホルダ１３の固定金具端子１９Ａ、１９Ｂ、１９Ｃ、１９Ｄにそれぞれ接触させる。
【０００９】
【発明が解決しようとする課題】
しかしながら、このように構成された従来の電池ホルダでは、以下のような問題がある。
【００１０】
すなわち、ボタン形電池１を上方から挿入して、下方へ押し下げる際に、このボタン形電池１の側面の電極１ｃがこのボタン形電池１の脱出を防ぐための固定金具端子１９Ａ、１９Ｂ、１９Ｃ、１９Ｄの内側面に接触して、これらの固定金具端子１９Ａ、１９Ｂ、１９Ｃ、１９Ｄの内側部分が下方に湾曲するおそれがあった。
【００１１】
そのため、これらの固定金具端子１９Ａ、１９Ｂ、１９Ｃ、１９Ｄの湾曲を回避するために、これらの固定金具端子１９Ａ、１９Ｂ、１９Ｃ、１９Ｄの内側への突出長さを抑えると、ボタン形電池１との重なり部分が短くなるので、プリント基板１５にかかる衝撃でボタン形電池１が脱落するおそれがあった。
【００１２】
そこで本発明の目的は、プリント基板への実装面積を増やすことなく、ボタン形電池の脱落を防ぐことのできる基板実装用ボタン形電池ホルダを得ることである。
【００１３】
【課題を解決するための手段】
前記課題を解決するために本発明の請求項１に対応する発明では、上下の面が電極となり断面がほぼ台形状のボタン形電池が開口部から内部に装着され、かつ、プリント基板に実装される基板実装用ボタン形電池ホルダにおいて、装着されるボタン形電池の下面を斜面部で案内するストッパを開口部の片方の入口に設けるとともに、この開口部の片方と他方にボタン形電池の電極と接触する負極端子と正極端子を収納し、斜面部を経て挿入されるボタン形電池の側面が当接しかつ案内する接触部を開口部の他方の負極端子または正極端子に形成したことを特徴とする。
【００１４】
なお、開口部から挿入されるボタン形電池の上面と側面でなす角部が当接して、ボタン形電池の逆極性挿入を防止する凸部を開口部の他方に形成することが好ましく、また、プリント基板に半田付けされる負極端子の半田付け部または正極端子の半田付け部の一方を開口部の底部の一方の外側に設け、負極端子の半田付け部または正極端子の半田付け部の他方を開口部の他方の外側に設けて、横置形の基板実装用ボタン形電池ホルダとしてもよい。
【００１５】
【発明の実施の形態】
以下、本発明の基板実装用ボタン形電池ホルダの一実施の形態を図面を参照して詳述する。
【００１６】
図１は、本発明の基板実装用ボタン形電池ホルダの斜視図を示し、図２は平面図を示し、図３は縦断面拡大図を示す。また、図４は、ボタン形電池を装着した状態の縦断面図を示し、図５は、ボタン形電池の逆極性の挿入を防止する作用を示す縦断面図を示す。
【００１７】
図１ないし図４において、プリント基板４に自動実装された電池ホルダ２は、外形が従来の電池ホルダと異なり、立方体状であって、絶縁樹脂成形品の枠体３の上部から底部に亘ってボタン形電池１を挿入するための開口部３ａを形成し、この開口部３ａの片方の入口に対して、内面側に斜面を形成したストッパ７を備えるとともに、開口部３ａの入口の他方に凸部３ｂを形成している。
【００１８】
さらに、この電池ホルダ２は、枠体３の底面側から片側に装着される負極側接触端子５と、この負極側接触端子５と対置して枠体３の他側に装着される正極側接触端子６を備えている。
【００１９】
このうち、負極側接触端子５は、下端のプリント基板４に半田付けされる負極端子半田付け部５ａと上部のくの字状の負極側接触部５ｂを有し、正極側接触端子６も、下端のプリント基板４に半田付けされる正極半田付け部６ａと上部のくの字状の正極側接触部６ｂを有し、この正極側接触部６ｂの接触面の位置は、枠体３の底部からの高さが正極側接触部５ｂの接触面と比べて低くなっている。
【００２０】
次に、このように構成された基板実装用ボタン形電池ホルダにボタン形電池１を装着する手順を図５(ａ)を参照して説明する。
【００２１】
この図５(ａ)に示すように、ボタン形電池１は、電池ホルダ２のストッパ７の上方から正極１ｂ側をストッパ７の斜面に接触させて開口部３ａに挿入し、ボタン形電池１の正極１ｃを負極側接触部５ｂに接触させながら下方にスライドさせるとともに、垂直方向に徐々に姿勢を変えた後、下方に押圧され、さらに負極端子１ａが負極側接触部５ｂによって案内されて、電池ホルダ２の内部に縦に挿入される。
【００２２】
さらに、この基板実装用ボタン形電池ホルダは、図５(ｂ)に示すように、ボタン形電池１の正極１ａと負極１ｂの二面でなす角部と、ストッパ７の位置及びその角度並びに負極側接触部５ｂの位置及びその形状により、ボタン形電池１の極性の逆向きの挿入を前記角部によって防止する。
【００２３】
なお、ボタン形電池１と電池ホルダ２の接触方法は、図４に示すように、ボタン形電池１の上面側の負極１ａを負極側接触部５ｂに接触させるともに、ボタン形電池１の底面側の正極１ｂを正極側接触部６ｂに接触させる。
【００２４】
これにより、ボタン形電池１の負極１ａを、電池ホルダ２の負極側接触部５ｂの下方の凹部８に正極側接触部６ｂの弾性による反力で固定し、ボタン形電池１の正極１ｃの下端を、電池ホルダ２の底面の凹部９に当接させるとともに、ボタン形電池１の正極１ｃの上端面に対置するストッパ７の下面によって、このボタン電池１の電池ホルダからの脱出を防ぐ。
【００２５】
なお、このストッパ７は、ボタン形電池１を挿入した後、このボタン形電池１の脱出を防ぐために十分な幅がこのストッパ７の下端面に確保されている。
【００２６】
次に、本発明の基板実装用ボタン形電池ホルダの第２の実施の形態について図６を参照して説明する。
【００２７】
図６に示すように、横置形の電池ホルダ１０をプリント基板４に実装する負極側接触端子１１の半田付け部１１ａおよび正極側接触端子部１２の半田付け部１２ａの取付位置と形状を変えることにより、プリント基板４に対して横向きにも実装可能で、プリント基板４からの高さが制約される条件に採用する基板実装用ボタン形電池ホルダを提供することができる。
【００２８】
すなわち、図６に示すように、これらの半田付け部１１ａ，１２ａは、電池ホルダ１０の底部側の片側に対して、所定の間隔で底面と直行方向に設けるとともに、これに対応して、開口部３ａ側の片側に固定用端子２０を追加する。
【００２９】
【発明の効果】
以上詳述したように、本発明の基板実装用ボタン形電池ホルダによれば、上下の面が電極となり断面がほぼ台形状のボタン形電池が枠体の開口部から内部に装着され、この枠体がプリント基板に実装される基板実装用ボタン形電池ホルダにおいて、装着されるボタン形電池の上面を斜面部で案内するストッパを開口部の片方の入口に設けるとともに、この開口部の片方と他方にボタン形電池の電極と接触する負極端子と正極端子を収納し、斜面部を経て挿入されるボタン形電池の側面が当接しかつ案内する接触部を開口部の他方の負極端子または正極端子に形成して、電池ホルダの上面からボタン形電池をプリント基板に縦に挿入するようにしたので、プリント基板への実装面積を抑えるとともに、振動等によるボタン形電池の脱出も防ぐことのできる基板実装用ボタン形電池ホルダを得ることができる。
【００３０】
また、ボタン形電池を２本の接触端子のみで保持するため、電池ホルダのコストダウンを図ることもできる。さらに、開口部の他方の凸部によって逆極性の装着を防止できるため、安全性と作業性に優れ、かつ、品質管理の容易な基板実装用ボタン形電池ホルダを得ることができる。
【図面の簡単な説明】
【図１】本発明の基板実装用ボタン形電池ホルダの第１の実施の形態を示す斜視図。
【図２】本発明の基板実装用ボタン形電池ホルダの第１の実施の形態を示す平面図。
【図３】図２の縦断面拡大図。
【図４】本発明の基板実装用ボタン形電池ホルダにボタン形電池が装着された状態を示す縦断面図。
【図５】本発明の基板実装用ボタン形電池ホルダの作用を示す縦断面図であり、(ａ)は、ボタン電池の装着を開始した状態を示し、(ｂ)は、ボタン形電池の極性を誤って逆にして装着を開始した状態を示す。
【図６】本発明の基板実装用ボタン形電池ホルダの第２の実施の形態を示す縦断面図。
【図７】従来の基板実装用ボタン形電池ホルダの一例を示す斜視図。
【図８】従来の基板実装用ボタン形電池ホルダの一例を示す縦断面図。
【図９】従来および本発明の基板実装用ボタン形電池ホルダに装着されるボタン形電池を示す側面図。
【符号の説明】
１ボタン形電池
２基板実装用ボタン形電池ホルダ
３枠体
３ａ開口部
４プリント基板
５負極側接触端子
５ａ負極端子半田付け部
５ｂ負極側接触部
６正極側接触端子
６ａ正極端子半田付け部
６ｂ正極側接触部
７ストッパ
８、９凹部[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a button-type battery holder for mounting on a board, which is mounted on a printed board and on which a button-type battery is mounted.
[0002]
[Prior art]
FIG. 7 is a perspective view of a conventional button-type battery holder for board mounting (hereinafter simply referred to as a battery holder), and FIG. 8 is a longitudinal sectional view showing a process of inserting the button-type battery into the battery holder. FIG. 9 shows a side view of the button-type battery.
[0003]
As shown in FIGS. 7 and 8, the conventional battery holder 13 has an opening 14 for inserting the button-type battery 1 at the top, and is mounted on the printed circuit board 15 by an automatic mounting machine.
[0004]
The battery holder 13 has a negative electrode side contact terminal 16 on one side of the bottom portion and a positive electrode side contact terminal 17 on the other side of the bottom portion. The negative electrode terminal soldering portion 17a at the lower end of the negative electrode side contact terminal 17 and the positive electrode side. The contact terminal 16 is mounted on the printed circuit board 15 through the positive terminal soldering portion 16a at the lower end.
[0005]
Among these, the negative electrode side contact terminal 16 has a contact terminal portion 16 b that protrudes obliquely upward from the inside of the bottom of the battery holder 13.
[0006]
As shown in FIG. 9, the button-type battery 1 attached to the battery holder 13 is substantially disc-shaped and has a substantially trapezoidal side surface. The lower surface of the trapezoid is the positive electrode 1b and 1c, and the upper surface is the negative electrode 1a. As shown by arrow A in FIG. 8, after being inserted with the positive electrode 1 b facing downward from an obliquely upper side of the opening 14, it is further pushed down to be housed horizontally in the battery holder 13. The
[0007]
The battery holder 13 has arc-shaped holding walls (housings) 18A and 18B which are symmetrically opposed to fix the outer surface of the button-type battery 1, and further, the upper side from the inside of the holding walls 18A and 18B. In order to prevent escape to the fixing wall terminals 18A, 18B, fixing metal terminals 19A, 19B, 19C, 19D are arranged at equal intervals on the inner peripheral side, and these fixing metal terminals 19A, 19B, 19C, 19D is connected to the positive electrode side contact terminal 17, respectively.
[0008]
The button-type battery 1 and the battery holder 13 are brought into contact with each other by bringing the negative electrode 1a of the button-type battery 1 into contact with the contact terminal portion 16b that protrudes upward from the bottom surface of the battery holder 13, and the positive electrode 1c on the side surface of the button-type battery 1. The positive electrode 1b on the upper surface is brought into contact with the fixture terminal 19A, 19B, 19C, 19D of the battery holder 13, respectively.
[0009]
[Problems to be solved by the invention]
However, the conventional battery holder configured as described above has the following problems.
[0010]
That is, when the button-type battery 1 is inserted from above and pushed downward, the electrode 1c on the side surface of the button-type battery 1 prevents the button-type battery 1 from coming out of the fixing metal terminals 19A, 19B, 19C, In contact with the inner surface of 19D, the inner portions of these fixing bracket terminals 19A, 19B, 19C, 19D may be bent downward.
[0011]
For this reason, in order to avoid the bending of the fixing metal terminals 19A, 19B, 19C, 19D, the length of the protrusion to the inside of the fixing metal terminals 19A, 19B, 19C, 19D is suppressed. Therefore, the button-type battery 1 may fall off due to an impact applied to the printed circuit board 15.
[0012]
Accordingly, an object of the present invention is to obtain a button-type battery holder for mounting on a board that can prevent the button-type battery from dropping without increasing the mounting area on a printed board.
[0013]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, in the invention corresponding to claim 1 of the present invention, a button-type battery having upper and lower surfaces serving as electrodes and having a substantially trapezoidal cross section is mounted from the opening and mounted on the printed circuit board. In the button-type battery holder for mounting on a board, a stopper for guiding the lower surface of the button-type battery to be mounted on the inclined surface is provided at one entrance of the opening, and the electrode of the button-type battery is provided on one side and the other side of the opening. The contact negative electrode terminal and the positive electrode terminal are accommodated, and a contact portion that contacts and guides the side surface of the button-type battery inserted through the slope portion is formed on the other negative electrode terminal or positive electrode terminal of the opening. .
[0014]
In addition, it is preferable to form the convex part which prevents the reverse polarity insertion of the button-type battery on the other side of the opening part by contacting the corners formed on the upper surface and the side surface of the button-type battery inserted from the opening part. One of the soldering part of the negative electrode terminal or the soldering part of the positive electrode terminal to be soldered to the printed circuit board is provided outside one of the bottoms of the opening, and the other of the soldering part of the negative electrode terminal or the soldering part of the positive electrode terminal is provided. It is good also as a button type battery holder for a horizontal mounting type | mold, providing in the other outer side of an opening part.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of a button-type battery holder for mounting on a substrate according to the present invention will be described in detail with reference to the drawings.
[0016]
1 shows a perspective view of a button-type battery holder for mounting on a substrate according to the present invention, FIG. 2 shows a plan view, and FIG. 3 shows an enlarged longitudinal sectional view. FIG. 4 is a longitudinal sectional view showing a state in which the button-type battery is mounted, and FIG. 5 is a longitudinal sectional view showing an action for preventing the reverse polarity insertion of the button-type battery.
[0017]
1 to 4, the battery holder 2 automatically mounted on the printed circuit board 4 has a cubic shape, unlike the conventional battery holder, and extends from the top to the bottom of the frame 3 of the insulating resin molded product. An opening 3a for inserting the button-type battery 1 is formed, and a stopper 7 having an inclined surface on the inner surface side with respect to one inlet of the opening 3a is provided, and the other of the inlets of the opening 3a is convex. Part 3b is formed.
[0018]
Further, the battery holder 2 includes a negative electrode side contact terminal 5 mounted on one side from the bottom surface side of the frame body 3 and a positive electrode side contact mounted on the other side of the frame body 3 so as to face the negative electrode side contact terminal 5. A terminal 6 is provided.
[0019]
Among these, the negative electrode side contact terminal 5 has a negative electrode terminal soldering part 5a to be soldered to the printed circuit board 4 at the lower end and an upper negative electrode side contact part 5b, and the positive electrode side contact terminal 6 is also It has a positive electrode soldering part 6a to be soldered to the printed circuit board 4 at the lower end and a top-shaped positive electrode side contact part 6b at the upper part, and the position of the contact surface of this positive electrode side contact part 6b is the bottom of the frame 3 Is lower than the contact surface of the positive electrode side contact portion 5b.
[0020]
Next, a procedure for mounting the button-type battery 1 on the board-mounting button-type battery holder configured as described above will be described with reference to FIG.
[0021]
As shown in FIG. 5A, the button-type battery 1 is inserted into the opening 3 a with the positive electrode 1 b side coming into contact with the slope of the stopper 7 from above the stopper 7 of the battery holder 2. The positive electrode 1c is slid downward while being in contact with the negative electrode side contact portion 5b, and after being gradually changed in the vertical direction, it is pressed downward, and the negative electrode terminal 1a is guided by the negative electrode side contact portion 5b. It is inserted vertically into the holder 2.
[0022]
Further, as shown in FIG. 5 (b), the button-type battery holder for mounting on a board includes a corner formed by two surfaces of the positive electrode 1a and the negative electrode 1b of the button-type battery 1, the position and angle of the stopper 7, and the negative electrode. Depending on the position and shape of the side contact portion 5b, insertion of the button-type battery 1 in the opposite direction of polarity is prevented by the corner portion.
[0023]
As shown in FIG. 4, the button-type battery 1 and the battery holder 2 are brought into contact with the negative electrode 1 a on the upper surface side of the button-shaped battery 1 in contact with the negative electrode-side contact portion 5 b and at the bottom side of the button-shaped battery 1. The positive electrode 1b is brought into contact with the positive electrode side contact portion 6b.
[0024]
As a result, the negative electrode 1a of the button-type battery 1 is fixed to the concave portion 8 below the negative electrode-side contact portion 5b of the battery holder 2 by the reaction force due to the elasticity of the positive electrode-side contact portion 6b, and the lower end of the positive electrode 1c of the button-type battery 1 Is brought into contact with the concave portion 9 on the bottom surface of the battery holder 2 and the lower surface of the stopper 7 facing the upper end surface of the positive electrode 1c of the button-type battery 1 prevents the button battery 1 from coming out of the battery holder.
[0025]
The stopper 7 has a sufficient width at the lower end surface of the stopper 7 to prevent the button-type battery 1 from escaping after the button-type battery 1 is inserted.
[0026]
Next, a second embodiment of the board-mounted button-type battery holder of the present invention will be described with reference to FIG.
[0027]
As shown in FIG. 6, the mounting position and shape of the soldering part 11a of the negative electrode side contact terminal 11 and the soldering part 12a of the positive electrode side contact terminal part 12 for mounting the horizontal battery holder 10 on the printed board 4 are changed. Thus, it is possible to provide a button-type battery holder for mounting on a substrate that can be mounted sideways with respect to the printed circuit board 4 and that is employed under conditions where the height from the printed circuit board 4 is restricted.
[0028]
That is, as shown in FIG. 6, these soldering portions 11a and 12a are provided in a direction perpendicular to the bottom surface at a predetermined interval with respect to one side on the bottom side of the battery holder 10 and correspondingly open. The fixing terminal 20 is added to one side on the part 3a side.
[0029]
【The invention's effect】
As described above in detail, according to the button-type battery holder for mounting a substrate according to the present invention, a button-type battery having upper and lower surfaces serving as electrodes and having a substantially trapezoidal cross section is mounted from the opening of the frame body. In a button-type battery holder for mounting a substrate on a printed circuit board, a stopper for guiding the upper surface of the button-type battery to be mounted by a slope is provided at one entrance of the opening, and one and the other of the opening are provided. The negative electrode terminal and the positive electrode terminal that are in contact with the electrode of the button-type battery are housed, and the side surface of the button-type battery that is inserted through the sloped part contacts and guides the contact part to the other negative electrode terminal or positive electrode terminal of the opening. Since the button-type battery is inserted vertically into the printed circuit board from the top of the battery holder, the mounting area on the printed circuit board can be reduced and the button-type battery can be prevented from escaping due to vibration. It is possible to obtain a button-shaped battery holder for board mounting, which can.
[0030]
In addition, since the button-type battery is held by only two contact terminals, the cost of the battery holder can be reduced. Furthermore, since the reverse projection can be prevented by the other convex portion of the opening, it is possible to obtain a button-type battery holder for mounting on a substrate that is excellent in safety and workability and easy in quality control.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a first embodiment of a button-type battery holder for mounting on a substrate according to the present invention.
FIG. 2 is a plan view showing a first embodiment of a button-type battery holder for mounting on a substrate according to the present invention.
FIG. 3 is an enlarged vertical cross-sectional view of FIG.
FIG. 4 is a longitudinal sectional view showing a state in which a button-type battery is mounted on a board-type button-type battery holder according to the present invention.
FIGS. 5A and 5B are longitudinal sectional views showing the operation of the button-type battery holder for mounting a substrate according to the present invention, in which FIG. 5A shows a state in which the button battery is started to be mounted, and FIG. The state where the wearing is started by reversing is shown.
FIG. 6 is a longitudinal sectional view showing a second embodiment of a button-type battery holder for mounting on a substrate according to the present invention.
FIG. 7 is a perspective view showing an example of a conventional battery mounting button-type battery holder.
FIG. 8 is a longitudinal sectional view showing an example of a conventional battery mounting button-type battery holder.
FIG. 9 is a side view showing a button-type battery mounted on a conventional button-mount battery holder for board mounting according to the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Button type battery 2 Button type battery holder 3 for board mounting Frame 3a Opening part 4 Printed circuit board 5 Negative electrode side contact terminal 5a Negative electrode terminal soldering part 5b Negative electrode side contact part 6 Positive electrode side contact terminal 6a Positive electrode terminal soldering part 6b Positive electrode Side contact 7 Stopper 8, 9 Recess

Claims

In the button-type battery holder for mounting a substrate, a button-type battery whose upper and lower surfaces are electrodes and which has a substantially trapezoidal cross section is mounted from the opening of the frame, and the frame is mounted on a printed circuit board. A stopper for guiding the lower surface of the button-type battery at the inclined surface is provided at one inlet of the opening, and a negative electrode terminal and a positive electrode terminal that are in contact with the electrode of the button-type battery are accommodated in one and the other of the opening. A button-type battery holder for mounting on a substrate, wherein a contact portion that abuts and guides a side surface of the button-type battery inserted through the slope portion is formed on the other negative electrode terminal or positive electrode terminal of the opening. .

A convex portion that prevents a reverse polarity insertion of the button-type battery is formed on the other side of the opening portion by contacting a corner formed by the upper surface and the side surface of the button-type battery inserted from the opening portion. The button-type battery holder for mounting on a substrate according to claim 1.

One of the soldering part of the negative electrode terminal or the positive electrode terminal soldering part to be soldered to the printed circuit board is provided outside one of the bottoms of the opening, and the soldering part of the negative electrode terminal or the soldering part of the positive electrode terminal 3. The button-type battery holder for mounting on a substrate according to claim 1, wherein the other is provided on the outside of the opening on the other side of the opening to be horizontally mounted.