JP4815873B2

JP4815873B2 - Charger

Info

Publication number: JP4815873B2
Application number: JP2005149170A
Authority: JP
Inventors: 則久碓氷
Original assignee: Casio Computer Co Ltd
Current assignee: Casio Computer Co Ltd
Priority date: 2005-05-23
Filing date: 2005-05-23
Publication date: 2011-11-16
Anticipated expiration: 2025-05-23
Also published as: JP2006331668A

Description

この発明は、二次電池を充電する充電装置に関する。 The present invention relates to a charging device for charging a secondary battery .

一般に、電子機器においては、充電可能な円柱状の二次電池を収納する電池収納部と、この二次電池を充電するソーラーパネルなどの発電装置とを備え、電池収納部に収納された二次電池を発電装置で充電し、この充電された二次電池から電力を供給すると共に、この二次電池からの電力供給が途絶えたときに、二次電池を交換するように構成したものがある。このような電子機器では、二次電池を交換するときに、誤って同じサイズの一次電池を装着すると、この一次電池を発電装置で充電してしまうという問題がある。 Generally, in an electronic device, a secondary battery stored in a battery storage unit includes a battery storage unit that stores a rechargeable cylindrical secondary battery and a power generation device such as a solar panel that charges the secondary battery. Some batteries are configured to charge a battery with a power generation device, supply power from the charged secondary battery, and replace the secondary battery when power supply from the secondary battery is interrupted. In such an electronic device, when replacing the secondary battery, if the primary battery of the same size is mistakenly attached, there is a problem that the primary battery is charged by the power generation device.

そこで、このような問題を防ぐために、従来の二次電池においては、特許文献１に記載されているように、両端面にそれぞれ正極と負極とが設けられた円柱状の電池本体の絶縁性外周面に、正極と負極とのいずれの電極にも接続されない検査用の導電部を設け、この導電部に２つの検査用電極片を接触させ、この２つの検査用電極片が導電部によって短絡するか否かを検出することにより、二次電池であるか一次電池であるかを判別するように構成したものがある。
特開２００１−２２２９９１号 Therefore, in order to prevent such a problem, in the conventional secondary battery, as described in Patent Document 1, an insulating outer periphery of a cylindrical battery body in which a positive electrode and a negative electrode are provided on both end faces, respectively. An inspection conductive portion that is not connected to either the positive electrode or the negative electrode is provided on the surface, two inspection electrode pieces are brought into contact with the conductive portion, and the two inspection electrode pieces are short-circuited by the conductive portion. Some of them are configured to determine whether the battery is a secondary battery or a primary battery.
JP 2001-222991 A

しかしながら、このような従来の二次電池では、正極と負極以外に、検査用の導電部を設け、この導電部に２つの検査用電極片を接触させて、２つの検査用電極片が導電部によって短絡するか否かを検出することにより、二次電池であるか一次電池であるかを判別しているため、正極と負極とにそれぞれ接続される電極片のほかに、導電部に接触する２つの検査用電極片が必要となり、部品点数が増大するという問題がある。 However, in such a conventional secondary battery, in addition to the positive electrode and the negative electrode, an inspection conductive part is provided, and two inspection electrode pieces are brought into contact with the conductive part, so that the two inspection electrode pieces are conductive parts. Since it is determined whether it is a secondary battery or a primary battery by detecting whether it is short-circuited or not, it contacts the conductive part in addition to the electrode pieces connected to the positive electrode and the negative electrode, respectively. Two inspection electrode pieces are required, which increases the number of parts.

特に、このような二次電池では、電池の一面が一方の電極、例えば負極に形成され、これ以外のほぼ全ての面が他方の電極、例えば正極に形成され、これにより表面のほぼ全てが負極と正極との電極に形成されたコイン型の二次電池においては、導電部を設けることができないため、このような従来の技術を使用することができないという問題がある。 In particular, in such a secondary battery, one surface of the battery is formed on one electrode, for example, the negative electrode, and almost all other surfaces are formed on the other electrode, for example, the positive electrode, whereby almost all of the surface is formed on the negative electrode. In the coin-type secondary battery formed on the positive electrode and the positive electrode, there is a problem that such a conventional technique cannot be used because a conductive portion cannot be provided.

この発明が解決しようとする課題は、表面のほぼ全てが電極に形成されていても、１つの導電性接触片を追加するだけで、簡単に電池の種類を判別して指定された二次電池以外の電池の充電を防ぐようにすることである。 The problem to be solved by the present invention is that a secondary battery can be specified by simply identifying the type of battery and adding only one conductive contact piece, even if almost all of the surface is formed on the electrode. It is to prevent charging of other batteries.

この発明は、上記課題を解決するために、次のような構成要素を備えている。
なお、各構成要素には、後述する各実施形態の項で説明される各要素に付されている図面の参照番号などを括弧と共に付す。 In order to solve the above problems, the present invention includes the following components.
In addition, the reference numerals of the drawings attached to the respective elements described in the section of each embodiment described later are attached to the respective constituent elements together with parentheses.

請求項１に記載の発明は、図１〜図９に示すように、発電装置（ソーラーパネル２１または外部充電器３１）と、一面が第１の電極（負極７ａ）に形成され、この一面以外のほぼ全ての面が第２の電極（正極７ｂ）に形成されて、前記発電装置で充電される二次電池（７）と、この二次電池の前記第１、第２の電極のうちいずれか一方の電極（例えば、負極７ａ）の表面にそれぞれ接触可能に設けられた第１、第２導電性接触片（第１、第２電極板１１、１２）と、前記二次電池の前記第１、第２の電極のうち他方の電極（例えば、正極７ｂ）の表面に接触可能に設けられた第３導電性接触片（第３電極板１３）と、前記二次電池の前記一方の電極（負極７ａ）の表面に貼り付けられて前記第２導電性接触片が前記一方の電極の表面に接触するのを阻止する絶縁層（電池判別用シール９）とを備え、前記第１、第３導電性接触片に前記発電装置の出力が印加され、前記第２導電性接触片が前記一方の表面に接触していない場合のみ、充電が行われることを特徴とする充電装置（２０、３０）である。 As shown in FIGS. 1 to 9, the invention described in claim 1 includes a power generation device (solar panel 21 or external charger 31) and one surface formed on the first electrode (negative electrode 7a), other than this one surface. Of the secondary battery (7) formed on the second electrode (positive electrode 7b) and charged by the power generator, and any one of the first and second electrodes of the secondary battery. First and second conductive contact pieces (first and second electrode plates 11 and 12) provided so as to be in contact with the surface of one of the electrodes (for example, the negative electrode 7a), and the first of the secondary battery. A third conductive contact piece (third electrode plate 13) provided so as to be able to contact the surface of the other electrode (for example, positive electrode 7b) of the first and second electrodes, and the one electrode of the secondary battery The second conductive contact piece is attached to the surface of the (negative electrode 7a) and contacts the surface of the one electrode. And an insulating layer (battery discrimination seal 9) that prevents the power generation, the output of the power generation device is applied to the first and third conductive contact pieces, and the second conductive contact piece is placed on the one surface The charging device (20, 30) is characterized in that charging is performed only when there is no contact.

請求項２に記載の発明は、前記第１導電性接触片（第１電極板１１）が前記第２導電性接触片（第２電極板１２）に電気的に接続されていることを特徴とする請求項１に記載の充電装置である。 The invention according to claim 2 is characterized in that the first conductive contact piece (first electrode plate 11) is electrically connected to the second conductive contact piece (second electrode plate 12). The charging device according to claim 1 .

請求項３に記載の発明は、図９に示すように、前記第１、第３導電性接触片（第１、第３電極板１１、１３）に、過充電防止回路（３２）が前記二次電池（７）と並列に接続されていることを特徴とする請求項１又は２に記載の充電装置（３０）である。 According to a third aspect of the invention, as shown in FIG. 9, the first, third conductive contact piece (first, third electrode plates 11 and 13), the overcharge preventing circuit (32) is the two The charging device (30) according to claim 1 or 2 , wherein the charging device (30) is connected in parallel with the secondary battery (7).

請求項１に記載の発明によれば、発電装置と、一面が第１の電極に形成され、この一面以外のほぼ全ての面が第２の電極に形成されて、発電装置で充電される二次電池と、この二次電池の前記第１、第２の電極のうちいずれか一方の電極の表面にそれぞれ接触可能に設けられた第１、第２導電性接触片と、二次電池の前記第１、第２の電極のうち他方の電極の表面に接触可能に設けられた第３導電性接触片と、二次電池の前記一方の電極の表面に貼り付けられて第２導電性接触片が前記一方の表面に接触するのを阻止する絶縁層とを備え、第１、第３導電性接触片に発電装置の出力が印加され、前記第２導電性接触片が前記一方の電極の表面に接触していない場合のみ、充電が行われる充電装置であることにより、表面のほぼ全てが正極と負極との電極に形成されたコイン型の二次電池であっても、この二次電池の第１、第２の電極のうちいずれか一方の電極の表面に設けられた絶縁層によって、その一方の電極の表面に第２導電性接触片が接触するのを阻止するので、指定された二次電池であるか否かを判別して、指定された二次電池以外の電池の充電を防ぐことができる。 According to the invention described in claim 1, the two power generating device, one side is formed on the first electrode, substantially all surfaces except the first surface is formed on the second electrode, which is charged by the power generation device A secondary battery, first and second conductive contact pieces provided so as to be in contact with the surface of one of the first and second electrodes of the secondary battery, and the secondary battery A third conductive contact piece provided to be able to contact the surface of the other electrode of the first and second electrodes, and a second conductive contact piece attached to the surface of the one electrode of the secondary battery And an insulating layer that prevents the first and third conductive contact pieces from being in contact with the one surface, the output of the power generation device is applied to the first and third conductive contact pieces, and the second conductive contact piece is the surface of the one electrode. Because the charging device is charged only when it is not in contact with the Even if the coin-type secondary battery is formed on the electrode, the insulating layer provided on the surface of one of the first and second electrodes of the secondary battery, Since the second conductive contact piece is prevented from coming into contact with the surface of the electrode, it is possible to discriminate whether or not the battery is a designated secondary battery and prevent charging of batteries other than the designated secondary battery. it can.

請求項２に記載の発明によれば、第１導電性接触片が第２導電性接触片に電気的に接続されているので、指定されていない電池を取り付けると、この指定されていない電池には絶縁層が設けられていないため、第２導電性接触片が指定されていない電池の電極に接触して、第１導電性接触片と第２導電性接触片とが短絡するので、指定されていない電池の充電を防ぐことができる。このため、１つの導電性接触片である第２導電性接触片を追加するだけの少ない部品点数で、簡単に且つ確実に電池の種類を判別して、指定された二次電池以外の電池が誤って取り付けられても、この二次電池以外の電池の充電を防ぐことができる。 According to the second aspect of the present invention, since the first conductive contact piece is electrically connected to the second conductive contact piece, when a non-designated battery is attached, the non-designated battery is Since the insulating layer is not provided, the first conductive contact piece and the second conductive contact piece are short-circuited due to contact with the electrode of the battery for which the second conductive contact piece is not specified. Can prevent the battery from charging. For this reason, the battery type other than the designated secondary battery can be determined easily and reliably with a small number of parts that only requires the addition of the second conductive contact piece, which is one conductive contact piece. Even if it is mistakenly attached, charging of batteries other than the secondary battery can be prevented.

請求項３に記載の発明によれば、第１、第３導電性接触片に過充電防止回路が二次電池と並列に接続されていることにより、発電装置によって二次電池を充電する際、この二次電池の充電が過剰になると、過充電防止回路によって二次電池の充電が阻止されるので、二次電池の過充電を防ぐことができ、これにより二次電池を安全に保護することができる。 According to the invention described in claim 3 , when the overcharge prevention circuit is connected to the first and third conductive contact pieces in parallel with the secondary battery, when the secondary battery is charged by the power generation device, If the secondary battery becomes excessively charged, the overcharge prevention circuit prevents the secondary battery from being charged, so it is possible to prevent the secondary battery from being overcharged, thereby protecting the secondary battery safely. Can do.

（実施形態１）
以下、図１〜図８を参照して、この発明を腕時計に適用した実施形態１について説明する。
図１はこの発明を適用した腕時計に組み込まれる時計モジュールを示した拡大断面図、図２は図１の二次電池を上面側から見た拡大斜視図、図３は図２の二次電池に電池判別用シールを貼り付ける状態を示した分解斜視図、図４は図３の電池判別用シールを複数個設けた電池判別用シールシートを示した斜視図である。 (Embodiment 1)
A first embodiment in which the present invention is applied to a wristwatch will be described below with reference to FIGS.
1 is an enlarged cross-sectional view showing a timepiece module incorporated in a wristwatch to which the present invention is applied, FIG. 2 is an enlarged perspective view of the secondary battery of FIG. 1 viewed from the upper surface side, and FIG. 3 is a secondary battery of FIG. FIG. 4 is an exploded perspective view showing a state in which a battery discrimination seal is attached, and FIG. 4 is a perspective view showing a battery discrimination seal sheet provided with a plurality of battery discrimination seals of FIG.

この腕時計の時計モジュール１は、図１に示すように、上部ハウジング２と下部ハウジング３とを備えている。この上部ハウジング２と下部ハウジング３との間には、時計機能に必要な各種の電子部品４ａを搭載した回路基板４が挟まれた状態で設けられている。上部ハウジング２内には、表示装置５がインターコネクタ６によって回路基板４と電気的に接続された状態で支持されて、上部ハウジング２の上面に形成された開口部２ａから上方に露出するように構成されている。この場合、表示装置５は、液晶表示素子やＥＬ（エレクトロルミネッセンス）表示素子などの平面型の表示素子からなり、時刻などの情報を電気光学的に表示するように構成されている。 As shown in FIG. 1, the watch module 1 of the wristwatch includes an upper housing 2 and a lower housing 3. Between the upper housing 2 and the lower housing 3, a circuit board 4 on which various electronic components 4a necessary for a clock function are mounted is provided. In the upper housing 2, the display device 5 is supported while being electrically connected to the circuit board 4 by the interconnector 6, and is exposed upward from the opening 2 a formed on the upper surface of the upper housing 2. It is configured. In this case, the display device 5 includes a flat display element such as a liquid crystal display element or an EL (electroluminescence) display element, and is configured to display information such as time in an electro-optical manner.

一方、下部ハウジング３内には、図１に示すように、二次電池７を収納する電池収納部８が設けられている。この場合、二次電池７は、図１〜図３に示すように、充電可能なコイン型の電池であり、上面が負極（―極）７ａに形成され、これ以外のほぼ全ての面つまり下面および側面が正極（＋極）７ｂに形成され、上面の負極７ａに電池判別用シール９が貼り付けられた構成になっている。この電池判別用シール９は、ＰＥＴ（ポリエチレンテレフタレート）などの絶縁性材料からなり、全体が二次電池７の上面の負極７ａとほぼ同じ大きさの円形状に形成され、その中心部に貫通孔９ａが形成されたリング形状になっている。これにより、二次電池７の負極７ａは、電池判別用シール９の中心部の貫通孔９ａに対応する部分が外部に露出し、これ以外の部分が電池判別用シール９によって覆われている。 On the other hand, as shown in FIG. 1, a battery housing portion 8 that houses the secondary battery 7 is provided in the lower housing 3. In this case, as shown in FIGS. 1 to 3, the secondary battery 7 is a rechargeable coin-type battery, the upper surface of which is formed on the negative electrode (-electrode) 7a, and almost all other surfaces, that is, the lower surface. The side surface is formed on the positive electrode (+ electrode) 7b, and the battery discrimination seal 9 is attached to the negative electrode 7a on the upper surface. The battery discriminating seal 9 is made of an insulating material such as PET (polyethylene terephthalate), and is entirely formed in a circular shape having the same size as the negative electrode 7a on the upper surface of the secondary battery 7, and has a through hole in the center thereof. 9a is formed in a ring shape. As a result, the negative electrode 7 a of the secondary battery 7 has a portion corresponding to the through hole 9 a at the center of the battery discrimination seal 9 exposed to the outside, and the other portion is covered with the battery discrimination seal 9.

この電池判別用シール９は、図４に示すように、電池判別用シールシート１０のベース材１０ａに剥離可能に複数個設けられている。すなわち、この電池判別用シールシート１０は、ベース材１０ａに複数の電池判別用シール９が接着層（図示せず）によって剥離可能に貼り付けられ、これら複数の電池判別用シール９のうち、所望する電池判別用シール９がベース材１０ａから接着層と共に自由に剥離されるように構成されている。これにより、剥離された電池判別用シール９は、図３に示すように、二次電池７の負極７ａに接着層によって貼り付けられるように構成されている。 As shown in FIG. 4, a plurality of battery discrimination seals 9 are provided on the base material 10a of the battery discrimination seal sheet 10 so as to be peelable. That is, the battery discrimination seal sheet 10 has a plurality of battery discrimination seals 9 attached to the base material 10a so as to be peelable by an adhesive layer (not shown). The battery discriminating seal 9 is configured to be peeled off together with the adhesive layer from the base material 10a. As a result, the peeled battery discrimination seal 9 is configured to be adhered to the negative electrode 7a of the secondary battery 7 with an adhesive layer, as shown in FIG.

また、下部ハウジング３内の電池収納部８には、図１および図２に示すように、その内部に収納された二次電池７の負極７ａの表面つまり二次電池７の上面にそれぞれ接触可能に設けられた第１、第２電極板１１、１２と、二次電池７の正極７ｂの表面つまり二次電池７の下面に接触可能に設けられた第３電極板１３とが設けられている。 Further, as shown in FIGS. 1 and 2, the battery housing portion 8 in the lower housing 3 can contact the surface of the negative electrode 7a of the secondary battery 7 housed therein, that is, the upper surface of the secondary battery 7, respectively. And the third electrode plate 13 provided so as to be in contact with the surface of the positive electrode 7 b of the secondary battery 7, that is, the lower surface of the secondary battery 7. .

第１電極板１１は、図１および図５に示すように、帯状の金属板を二股に分けた構成で、その基端部１１ａ（図１では左側の端部）が下側に折り曲げられて下部ハウジング３の左側上面に設けられた取付穴３ａに圧入により固定され、二股に分かれた一方の接触部１１ｂの先端が電池収納部８に収納された二次電池７の上面の負極７ａに接触するように斜め下方に向けて折り曲げられ、二股に分かれた他方の接触部１１ｃの先端が回路基板４の下面に接触するように斜め上方に向けて折り曲げられた構成になっている。 As shown in FIGS. 1 and 5, the first electrode plate 11 has a configuration in which a band-shaped metal plate is divided into two forks, and the base end portion 11 a (the left end portion in FIG. 1) is bent downward. The tip of one contact portion 11b, which is fixed into the mounting hole 3a provided on the upper left surface of the lower housing 3 by press-fitting, is in contact with the negative electrode 7a on the upper surface of the secondary battery 7 housed in the battery housing portion 8. Thus, it is bent obliquely downward, and is bent obliquely upward so that the tip of the other contact portion 11c divided into two is in contact with the lower surface of the circuit board 4.

すなわち、この第１電極板１１は、図１および図２に示すように、下部ハウジング３の電池収納部８に二次電池７が収納されたときに、二股に分かれた一方の接触部１１ｂが二次電池７の上面の負極７ａに貼り付けられた電池判別用シール９の中心部の貫通孔９ａに挿入されて二次電池７の負極７ａに接触し、二股に分かれた他方の接触部１１ｃの先端が回路基板４の下面に接触し、これにより二次電池７の負極７ａと回路基板４とを電気的に接続するように構成されている。 That is, as shown in FIGS. 1 and 2, when the secondary battery 7 is stored in the battery storage portion 8 of the lower housing 3, the first electrode plate 11 has one contact portion 11 b that is divided into two branches. The other contact portion 11c, which is inserted into the through hole 9a at the center of the battery discrimination seal 9 affixed to the negative electrode 7a on the upper surface of the secondary battery 7, contacts the negative electrode 7a of the secondary battery 7, and is divided into two branches. The tip of the battery is in contact with the lower surface of the circuit board 4, whereby the negative electrode 7 a of the secondary battery 7 and the circuit board 4 are electrically connected.

また、この第１電極板１１は、図６に示すように、下部ハウジング３の電池収納部８に一次電池１４が収納されると、二股に分かれた一方の接触部１１ｂが一次電池１４の上面の負極１４ａに接触し、二股に分かれた他方の接触部１１ｃの先端が回路基板４の下面に接触し、これにより一次電池１４の負極１４ａと回路基板４とを電気的に接続するように構成されている。 In addition, as shown in FIG. 6, when the primary battery 14 is accommodated in the battery accommodating portion 8 of the lower housing 3, the first electrode plate 11 has one contact portion 11 b that is divided into two parts, the upper surface of the primary battery 14. The tip of the other contact portion 11c that is divided into two is in contact with the lower surface of the circuit board 4, thereby electrically connecting the negative electrode 14a of the primary battery 14 and the circuit board 4 to each other. Has been.

第２電極板１２は、検査用の電極板であり、第１電極板１１と同様、帯状の金属板を二股に分けた構成で、その基端部１２ａ（図１では右側の端部）が下側に折り曲げられて下部ハウジング３の右側上面に設けられた取付穴３ｂに圧入により固定され、二股に分かれた一方の接触部１２ｂの先端が電池収納部８に収納された二次電池７の上面の負極７ａに設けられた電池判別用シール９に接触するように斜め下方に向けて折り曲げられ、二股に分かれた他方の接触部１２ｃの先端が回路基板４の下面に接触するように斜め上方に向けて折り曲げられた構成になっている。 The second electrode plate 12 is an electrode plate for inspection. Like the first electrode plate 11, the second electrode plate 12 has a configuration in which a strip-shaped metal plate is divided into two forks, and its base end portion 12a (right end portion in FIG. 1) is The secondary battery 7 is bent downward and fixed by press-fitting into a mounting hole 3 b provided on the upper right side of the lower housing 3, and the tip of one of the contact parts 12 b divided into two forks is housed in the battery housing part 8. Slightly upward so that the tip of the other contact portion 12c that is bifurcated and in contact with the lower surface of the circuit board 4 is bent obliquely downward so as to contact the battery discrimination seal 9 provided on the negative electrode 7a on the upper surface. It is the structure bent toward the side.

すなわち、この第２電極板１２は、図１および図２に示すように、下部ハウジング３の電池収納部８に二次電池７が収納されたときに、二股に分かれた一方の接触部１２ｂの先端が二次電池７の上面の負極７ａに設けられた電池判別用シール９に接触し、二股に分かれた他方の接触部１２ｃの先端が回路基板４の下面に接触し、これにより二次電池７の負極７ａと回路基板４とが電気的に接続されないように構成されている。 That is, as shown in FIGS. 1 and 2, the second electrode plate 12 has one contact portion 12 b that is divided into two branches when the secondary battery 7 is stored in the battery storage portion 8 of the lower housing 3. The tip contacts the battery discriminating seal 9 provided on the negative electrode 7a on the upper surface of the secondary battery 7, and the tip of the other contact portion 12c divided into two branches contacts the lower surface of the circuit board 4, thereby the secondary battery. 7 is configured such that the negative electrode 7a and the circuit board 4 are not electrically connected.

また、この第２電極板１２は、図６に示すように、下部ハウジング３の電池収納部８に一次電池１４が収納されたときには、この一次電池１４に電池判別用シール９が設けられていないため、二股に分かれた一方の接触部１２ｂの先端が一次電池１４の上面の負極１４ａに接触し、二股に分かれた他方の接触部１２ｃが回路基板４に接触し、これにより一次電池１４の負極１４ａによって第２電極板１２が第１電極板１１と短絡するように構成されている。 Further, as shown in FIG. 6, when the primary battery 14 is stored in the battery storage portion 8 of the lower housing 3, the second electrode plate 12 is not provided with the battery discrimination seal 9 on the primary battery 14. Therefore, the tip of one of the contact parts 12b divided into two branches contacts the negative electrode 14a on the upper surface of the primary battery 14, and the other contact part 12c divided into two branches contacts the circuit board 4, thereby the negative electrode of the primary battery 14 The second electrode plate 12 is configured to be short-circuited with the first electrode plate 11 by 14a.

第３電極板１３は、図１および図６に示すように、帯状の金属板の両端部にフック部１３ａが上方に折り曲げられ、この両側のフック部１３ａが下部ハウジング３の下面の両側に設けられた挿入孔３ｃにそれぞれ挿入し、この挿入孔３ｃ内に設けられた係止突起１５にそれぞれ係止されることにより、電池収納部８の下面側に架け渡され、この状態で接続部材(図示せず)によって第３電極板１３が回路基板４と電気的に接続された構成になっている。 As shown in FIGS. 1 and 6, the third electrode plate 13 has hook portions 13 a bent upward at both ends of a strip-shaped metal plate, and the hook portions 13 a on both sides are provided on both sides of the lower surface of the lower housing 3. Each of the insertion holes 3c is inserted into the insertion hole 3c and is engaged with the engagement protrusion 15 provided in the insertion hole 3c. The third electrode plate 13 is electrically connected to the circuit board 4 by a not-shown).

これにより、この第３電極板１３は、図１および図６に示すように、下部ハウジング３の電池収納部８に二次電池７または一次電池１４が収納されたときに、二次電池７の下面の正極７ｂまたは一次電池１４の下面の正極１４ｂに接触し、二次電池７の下面の正極７ｂまたは一次電池１４の下面の正極１４ｂと回路基板４とを電気的に接続するように構成されている。 Thereby, as shown in FIGS. 1 and 6, when the secondary battery 7 or the primary battery 14 is stored in the battery storage portion 8 of the lower housing 3, the third electrode plate 13 It is configured to contact the positive electrode 7b on the lower surface or the positive electrode 14b on the lower surface of the primary battery 14, and to electrically connect the positive electrode 7b on the lower surface of the secondary battery 7 or the positive electrode 14b on the lower surface of the primary battery 14 and the circuit board 4. ing.

次に、この時計モジュール１の充電装置２０の回路について、図７および図８を参照して説明する。
この充電装置２０は、図７および図８に示すように、ソーラーパネル２１を備えている。このソーラーパネル２１は、発電装置であり、複数のソーラーセル（太陽電池素子）からなり、光が照射されると起電力を発生するように構成されている。このソーラーパネル２１の正極は、逆流防止ダイオード２２のアノードに接続されており、この逆流防止ダイオード２２のカソードは、二次電池７の正極７ｂまたは一次電池１４の正極１４ｂに接触する第３電極板１３に接続されている。 Next, the circuit of the charging device 20 of the timepiece module 1 will be described with reference to FIGS.
As shown in FIGS. 7 and 8, the charging device 20 includes a solar panel 21. The solar panel 21 is a power generation device, and includes a plurality of solar cells (solar cell elements), and is configured to generate an electromotive force when irradiated with light. The positive electrode of the solar panel 21 is connected to the anode of the backflow prevention diode 22, and the cathode of the backflow prevention diode 22 is a third electrode plate that contacts the positive electrode 7 b of the secondary battery 7 or the positive electrode 14 b of the primary battery 14. 13 is connected.

また、ソーラーパネル２１の負極は、図７および図８に示すように、二次電池７の負極７ａまたは一次電池１４の負極１４ａに接触する第１電極板１１に接続されている。さらに、第３電極板１３に接続されたソーラーパネル２１の正極は、二次電池７の負極７ａに設けられた電池判別用シール９または一次電池１４の負極１４ａに接触する検査用の第２電極板１２に接続されている。そして、第１、第３電極板１１、１３には、時計回路２３が接続されている。 Moreover, the negative electrode of the solar panel 21 is connected to the first electrode plate 11 in contact with the negative electrode 7a of the secondary battery 7 or the negative electrode 14a of the primary battery 14, as shown in FIGS. Further, the positive electrode of the solar panel 21 connected to the third electrode plate 13 is the second electrode for inspection that contacts the battery discrimination seal 9 provided on the negative electrode 7 a of the secondary battery 7 or the negative electrode 14 a of the primary battery 14. Connected to the plate 12. A clock circuit 23 is connected to the first and third electrode plates 11 and 13.

次に、このような充電装置２０の回路の動作について説明する。
まず、図１に示すように、電池収納部８に二次電池７が収納されると、図７に示すように、この二次電池７の負極７ａに第１電極板１１が接続され、二次電池７の正極７ｂに第３電極板１３が接続される。また、検査用の第２電極板１２は、二次電池７の負極７ａに設けられた電池判別用シール９に接触し、二次電池７の負極７ａには接続されない。この状態で、ソーラーパネル２１に光が照射されて十分な起電力が発生すると、ソーラーパネル２１から逆流防止ダイオード２２を通して二次電池７が充電される。これにより、二次電池７に蓄えられた電力によって時計回路２３が動作する。 Next, the operation of the circuit of the charging device 20 will be described.
First, as shown in FIG. 1, when the secondary battery 7 is stored in the battery storage unit 8, the first electrode plate 11 is connected to the negative electrode 7a of the secondary battery 7 as shown in FIG. The third electrode plate 13 is connected to the positive electrode 7 b of the secondary battery 7. Further, the second electrode plate 12 for inspection is in contact with the battery discrimination seal 9 provided on the negative electrode 7 a of the secondary battery 7 and is not connected to the negative electrode 7 a of the secondary battery 7. In this state, when the solar panel 21 is irradiated with light and sufficient electromotive force is generated, the secondary battery 7 is charged from the solar panel 21 through the backflow prevention diode 22. Thereby, the clock circuit 23 is operated by the electric power stored in the secondary battery 7.

また、図６に示すように、電池収納部８に一次電池１４が収納されると、図８に示すように、この一次電池１４の負極１４ａに第１電極板１１が接続され、一次電池１４の正極１４ｂに第３電極板１３が接続される。また、検査用の第２電極板１２は、一次電池１４の負極１４ａに電池判別用シール９が設けられていないため、一次電池１４の負極１４ａに接触して接続される。この状態では、第１電極板１１と第２電極板１２とが一次電池１４の負極１４ａによって短絡するため、ソーラーパネル２１に光が照射されて起電力が発生しても、一次電池１４が充電されることがない。なお、このときには、一次電池１４の電力で時計回路２３が動作する。 As shown in FIG. 6, when the primary battery 14 is stored in the battery storage unit 8, the first electrode plate 11 is connected to the negative electrode 14a of the primary battery 14 as shown in FIG. The third electrode plate 13 is connected to the positive electrode 14b. The second electrode plate 12 for inspection is connected in contact with the negative electrode 14 a of the primary battery 14 because the battery discrimination seal 9 is not provided on the negative electrode 14 a of the primary battery 14. In this state, since the first electrode plate 11 and the second electrode plate 12 are short-circuited by the negative electrode 14a of the primary battery 14, even if the solar panel 21 is irradiated with light and an electromotive force is generated, the primary battery 14 is charged. It will not be done. At this time, the clock circuit 23 operates with the power of the primary battery 14.

このように、この時計モジュール１の充電装置２０によれば、ソーラーパネル２１で充電されるコイン型の二次電池７と、この二次電池７の負極７ａにそれぞれ接触可能に設けられた第１、第２電極板１１、１２と、二次電池７の正極７ｂに接触可能に設けられた第３電極板１３と、二次電池７の負極７ａの表面に貼り付けられて第２電極板１２が負極７ａに接触するのを阻止する絶縁性の電池判別用シール９とを備え、第１、第３電極板１１、１３にソーラーパネル２１の出力が印加され、第２電極板２が第３電極板１３に電気的に接続された構成であるから、電池収納部８に二次電池７が収納されると、ソーラーパネル２１によって充電することができ、また電池収納部８に一次電池１４が収納されても、一次電池１４の充電を防ぐことができる。 Thus, according to the charging device 20 of the timepiece module 1, the coin-type secondary battery 7 charged by the solar panel 21 and the first negative electrode 7a of the secondary battery 7 are provided so as to be in contact with each other. The second electrode plates 12, 12, the third electrode plate 13 provided so as to be in contact with the positive electrode 7 b of the secondary battery 7, and the second electrode plate 12 attached to the surface of the negative electrode 7 a of the secondary battery 7. And an insulating battery discriminating seal 9 that prevents contact with the negative electrode 7a. The output of the solar panel 21 is applied to the first and third electrode plates 11 and 13, and the second electrode plate 2 is connected to the third electrode plate 3. Since the structure is electrically connected to the electrode plate 13, when the secondary battery 7 is stored in the battery storage unit 8, it can be charged by the solar panel 21, and the primary battery 14 is stored in the battery storage unit 8. Prevent charging of the primary battery 14 even when stored. It can be.

すなわち、この充電装置２０では、コイン型の二次電池７の負極７ａの表面に設けられた絶縁性の電池判別用シール９によって、その負極７ａに第２電極板１２が接触するのを阻止していることにより、指定された二次電池であるか否かを判別することができる。例えば、二次電池７を交換するときに、一次電池１４を電池収納部８に収納すると、この一次電池１４には電池判別用シール９が設けられていないため、第２電極板１２が一次電池１４の負極１４ａに接触し、この第２電極板１２と第１電極板１１とが短絡することにより、ソーラーパネル２１から電力が一次電池１４に供給されることがないので、一次電池１４の充電を防ぐことができる。 That is, in this charging device 20, the insulating electrode discrimination seal 9 provided on the surface of the negative electrode 7a of the coin-type secondary battery 7 prevents the second electrode plate 12 from contacting the negative electrode 7a. Therefore, it can be determined whether or not it is a designated secondary battery. For example, when the secondary battery 7 is replaced, if the primary battery 14 is stored in the battery storage unit 8, since the battery discrimination seal 9 is not provided in the primary battery 14, the second electrode plate 12 is used as the primary battery. 14 is in contact with the negative electrode 14a and the second electrode plate 12 and the first electrode plate 11 are short-circuited, so that no power is supplied from the solar panel 21 to the primary battery 14. Can be prevented.

この場合、ソーラーパネル２１で充電される二次電池７は、上面が負極７ａに形成され、これ以外のほぼ全ての面つまり下面および側面が正極７ｂに形成され、これにより表面のほぼ全体が負極７ａと正極７ｂとの電極で形成されたコイン型の電池であっても、負極７ａの表面に絶縁性の電池判別用シール９が設けられていることにより、この電池判別用シール９によって、二次電池であるか否かを判別するための検査用の第２電極板１２が二次電池７の負極７ａに接触するのを阻止するので、指定された二次電池７であるか否かを判別することができる。このため、１つの第２電極板１２を追加するだけの少ない部品点数で、且つ狭い実装スペースで、簡単に且つ確実に電池の種類を判別して、指定された二次電池７以外の電池、つまり一次電池１４の充電を防ぐことができる。 In this case, the secondary battery 7 charged by the solar panel 21 has the upper surface formed on the negative electrode 7a and substantially all other surfaces, that is, the lower surface and the side surfaces formed on the positive electrode 7b. Even in the case of a coin-type battery formed of electrodes of 7a and a positive electrode 7b, an insulating battery discrimination seal 9 is provided on the surface of the negative electrode 7a. Since the second electrode plate for inspection 12 for discriminating whether or not it is a secondary battery is prevented from contacting the negative electrode 7a of the secondary battery 7, it is determined whether or not it is a designated secondary battery 7. Can be determined. For this reason, the battery type other than the designated secondary battery 7 can be easily and reliably determined with a small number of parts and a small mounting space by adding one second electrode plate 12, That is, charging of the primary battery 14 can be prevented.

すなわち、この電池判別用シール９は、ソーラーパネル２１で充電されるコイン型の二次電池７における負極７ａの表面に貼り付けられ、この負極７ａの表面にそれぞれ接触可能に設けられた第１、第２電極板１１、１２のうち、検査用の第２電極板１２が負極７ａに接触するのを阻止するので、表面のほぼ全てが負極７ａと正極７ｂとの電極に形成されたコイン型の二次電池７であっても、この二次電池７の負極７ａの表面に貼り付けることができ、これにより第２電極板１２が接触するのを阻止することができるので、指定された二次電池７であるか否かを確実に判別することができる。 That is, the battery discrimination seal 9 is attached to the surface of the negative electrode 7a in the coin-type secondary battery 7 charged by the solar panel 21, and the first, Of the second electrode plates 11 and 12, the second electrode plate 12 for inspection is prevented from coming into contact with the negative electrode 7a, so that almost all of the surface is a coin type formed on the electrodes of the negative electrode 7a and the positive electrode 7b. Even the secondary battery 7 can be affixed to the surface of the negative electrode 7a of the secondary battery 7, thereby preventing the second electrode plate 12 from coming into contact with the designated secondary battery. Whether or not the battery 7 is used can be reliably determined.

また、この電池判別用シール９は、二次電池７の負極７ａの表面に貼り付けるだけで良いので、簡単に二次電池７に取り付けて使用することができる。特に、この電池判別用シール９は、取付スペースをほとんど必要とせずに二次電池７に取り付けることができるほか、二次電池７の負極７ａの表面形状に合った形状に簡単に製作することができ、その製作が容易で、その取付作業も簡単にできるので、生産性が高く、低価格なものを提供することができる。 Further, since the battery discrimination seal 9 has only to be attached to the surface of the negative electrode 7a of the secondary battery 7, it can be easily attached to the secondary battery 7 for use. In particular, the battery discrimination seal 9 can be attached to the secondary battery 7 with almost no installation space, and can be easily manufactured in a shape that matches the surface shape of the negative electrode 7a of the secondary battery 7. It is easy to manufacture and can be easily attached, so that it is possible to provide a product with high productivity and low price.

さらに、この電池判別用シールシート１０によれば、電池判別用シール９がベース材１０ａに剥離可能に接触層によって複数個設けられているので、所望する電池判別用シール９を自由にベース材１０ａから接着層と共に剥離することができると共に、この接着層によって二次電池７の負極７ａの表面に簡単に且つ容易に貼り付けることができ、これにより電池判別用シール９の取り扱いが容易で便利である。 Furthermore, according to this battery discrimination seal sheet 10, since a plurality of battery discrimination seals 9 are provided on the base material 10a by the contact layer so as to be peeled off, the desired battery discrimination seal 9 can be freely attached to the base material 10a. Can be peeled off together with the adhesive layer, and can be easily and easily attached to the surface of the negative electrode 7a of the secondary battery 7 by this adhesive layer, whereby the battery discrimination seal 9 can be handled easily and conveniently. is there.

（実施形態２）
次に、図９を参照して、この発明を腕時計に適用した実施形態２について説明する。なお、図１〜図８に示された実施形態１と同一部分には同一符号を付して説明する。
この腕時計に組み込まれる時計モジュール１は、充電装置３０が実施形態１と異なる構成で、これ以外は実施形態１とほぼ同じ構成になっている。すなわち、この充電装置３０は、ソーラーパネル２１に代えて外部充電器３１を用いると共に、二次電池７の過充電を防ぐ過充電防止回路３２を組み込んだ構成になっている。 (Embodiment 2)
Next, a second embodiment in which the present invention is applied to a wristwatch will be described with reference to FIG. In addition, the same code | symbol is attached | subjected and demonstrated to the same part as Embodiment 1 shown by FIGS.
The timepiece module 1 incorporated in the wristwatch has a configuration in which the charging device 30 is different from that of the first embodiment, and the configuration other than this is substantially the same as that of the first embodiment. That is, the charging device 30 is configured to use an external charger 31 instead of the solar panel 21 and incorporate an overcharge prevention circuit 32 that prevents overcharge of the secondary battery 7.

すなわち、外部充電器３１は、時計モジュール１とは別に構成され、時計モジュール１の外部に配置されて、時計モジュール１に電気的に接続されるように構成されている。この場合、外部充電器３１の正極は、実施形態１と同様に、逆流防止ダイオード２２のアノードに接続されており、この逆流防止ダイオード２２のカソードは、二次電池７の正極７ｂまたは一次電池１４の正極１４ｂに接触する第３電極板１３に接続されている。 That is, the external charger 31 is configured separately from the timepiece module 1, arranged outside the timepiece module 1, and electrically connected to the timepiece module 1. In this case, the positive electrode of the external charger 31 is connected to the anode of the backflow prevention diode 22 as in the first embodiment, and the cathode of the backflow prevention diode 22 is the positive electrode 7b of the secondary battery 7 or the primary battery 14. The third electrode plate 13 is in contact with the positive electrode 14b.

また、外部充電器３１の負極は、過充電防止回路３２を介して二次電池７の負極７ａまたは一次電池１４の負極１４ａに接触する第１電極板１１に接続されている。さらに、第３電極板１３に接続された外部充電器３１の正極は、二次電池７の負極７ａに設けられた電池判別用シール９または一次電池１４の負極１４ａに接触する検査用の第２電極板１２に接続されている。この場合、過充電防止回路３２は、第３電極板１３と第１電極板１１とに二次電池７または一次電池１４と並列に接続されている。なお、第１、第３電極板１１、１３には、過充電防止回路３２を介して時計回路２３が接続されている。 The negative electrode of the external charger 31 is connected to the first electrode plate 11 that is in contact with the negative electrode 7 a of the secondary battery 7 or the negative electrode 14 a of the primary battery 14 via the overcharge prevention circuit 32. Further, the positive electrode of the external charger 31 connected to the third electrode plate 13 is in contact with the battery discrimination seal 9 provided on the negative electrode 7 a of the secondary battery 7 or the negative electrode 14 a of the primary battery 14. It is connected to the electrode plate 12. In this case, the overcharge prevention circuit 32 is connected to the third electrode plate 13 and the first electrode plate 11 in parallel with the secondary battery 7 or the primary battery 14. A timepiece circuit 23 is connected to the first and third electrode plates 11 and 13 via an overcharge prevention circuit 32.

次に、この充電装置３０の回路の動作について説明する。
まず、図１に示すように、電池収納部８に二次電池７が収納されると、図９に示すように、この二次電池７の負極７ａに第１電極板１１が接続されると共に、この二次電池７の正極７ｂに第３電極板１３が接続される。また、検査用の第２電極板１２は、二次電池７の負極７ａに設けられた電池判別用シール９に接触し、二次電池７の負極７ａに接続されていない。この状態で、外部充電器３１が接続されると、この外部充電器３１から逆流防止ダイオード２２を通して二次電池７が充電される。そして、二次電池７の充電が過剰になると、外部充電器３１から過充電防止回路３２に電流がなれて二次電池７の過充電を防ぐ。これにより、二次電池７に蓄えられた電力によって時計回路２３が動作する。 Next, the operation of the circuit of the charging device 30 will be described.
First, as shown in FIG. 1, when the secondary battery 7 is stored in the battery storage unit 8, the first electrode plate 11 is connected to the negative electrode 7a of the secondary battery 7 as shown in FIG. The third electrode plate 13 is connected to the positive electrode 7b of the secondary battery 7. The second electrode plate 12 for inspection is in contact with the battery discrimination seal 9 provided on the negative electrode 7 a of the secondary battery 7 and is not connected to the negative electrode 7 a of the secondary battery 7. When the external charger 31 is connected in this state, the secondary battery 7 is charged from the external charger 31 through the backflow prevention diode 22. When the secondary battery 7 is excessively charged, a current is supplied from the external charger 31 to the overcharge prevention circuit 32 to prevent the secondary battery 7 from being overcharged. Thereby, the clock circuit 23 is operated by the electric power stored in the secondary battery 7.

また、図６に示したように、電池収納部８に一次電池１４が収納されると、図９に示すように、この一次電池１４の負極１４ａに第１電極板１１が接続されると共に、この一次電池１４の正極１４ｂに第３電極板１３が接続される。また、検査用の第２電極板１２は、図示しないが、一次電池１４の負極１４ａに電池判別用シール９が設けられていないため、一次電池１４の負極１４ａに接触して接続される。この状態では、第１電極板１１と第２電極板１２とが一次電池１４の負極１４ａによって短絡するため、外部充電器３１によって一次電池１４が充電されることがない。なお、このときには、一次電池１４の電力で時計回路２３が動作する。 As shown in FIG. 6, when the primary battery 14 is stored in the battery storage unit 8, the first electrode plate 11 is connected to the negative electrode 14a of the primary battery 14 as shown in FIG. The third electrode plate 13 is connected to the positive electrode 14 b of the primary battery 14. Although not shown, the second electrode plate 12 for inspection is connected to the negative electrode 14a of the primary battery 14 because the negative electrode 14a of the primary battery 14 is not provided with the battery discrimination seal 9. In this state, since the first electrode plate 11 and the second electrode plate 12 are short-circuited by the negative electrode 14 a of the primary battery 14, the primary battery 14 is not charged by the external charger 31. At this time, the clock circuit 23 operates with the power of the primary battery 14.

このように、この充電装置３０によれば、実施形態１と同様、表面のほぼ全てが負極７ａと正極７ｂとの電極に形成されたコイン型の二次電池７であっても、この二次電池７の負極７ａの表面に電池判別用シール９が設けられていることにより、この電池判別用シール９によって、二次電池７の負極７ａの表面に第２電極板１２が接触するのを阻止することができ、これにより指定された二次電池７であるか否かを判別することができる。このため、二次電池７を交換するときに、誤って一次電池１４を電池収納部８に収納しても、一次電池１４の充電を確実に防ぐことができる。 As described above, according to the charging device 30, even in the coin-type secondary battery 7 in which almost the entire surface is formed on the electrodes of the negative electrode 7a and the positive electrode 7b, as in the first embodiment, Since the battery discrimination seal 9 is provided on the surface of the negative electrode 7a of the battery 7, the battery discrimination seal 9 prevents the second electrode plate 12 from contacting the surface of the negative electrode 7a of the secondary battery 7. Accordingly, it is possible to determine whether or not the secondary battery 7 is designated. For this reason, even when the secondary battery 7 is replaced, even if the primary battery 14 is stored in the battery storage unit 8 by mistake, the charging of the primary battery 14 can be reliably prevented.

これにより、実施形態１と同様、１つの第２電極板１２を追加するだけの少ない部品点数で、且つ狭い実装スペースで、簡単に且つ確実に電池の種類を判別し、指定された二次電池７以外の電池、つまり一次電池１４の充電を防ぐことができるほか、特に過充電防止回路３２を備えているので、二次電池７の充電が過剰になると、外部充電器３１から過充電防止回路３２に電流がなれて二次電池７の過充電を防ぐことができ、これにより二次電池７を安全に保護することができる。 As in the first embodiment, this makes it possible to easily and reliably discriminate the type of battery with a small number of parts that only requires the addition of one second electrode plate 12 and a small mounting space, and to designate a specified secondary battery. In addition to being able to prevent charging of batteries other than 7, that is, the primary battery 14, the overcharge prevention circuit 32 is particularly provided. Therefore, when the secondary battery 7 is excessively charged, the external charger 31 starts overcharge prevention circuit. As a result, the secondary battery 7 can be prevented from being overcharged due to current flowing in the battery 32, whereby the secondary battery 7 can be safely protected.

なお、上記実施形態１、２では、二次電池７の上面の負極７ａに電池判別用シール９を貼り付け、この電池判別用シール９に第２電極板１２を接触させて、第２電極板１２が二次電池７の負極７ａに接触するのを阻止するように構成した場合について述べたが、これに限らず、例えば二次電池７の下面の正極７ｂに電池判別用シール９を貼り付け、この電池判別用シール９に第２電極板１２を接触させて、第２電極板１２が二次電池７の正極７ｂに接触するのを阻止するように構成しても良い。この場合には、第１電極板１１を二次電池７の正極７ｂに接触させるように設け、第３電極板１３を二次電池７の負極７ａに接触させるように設ければ良い。 In the first and second embodiments, the battery discrimination seal 9 is attached to the negative electrode 7a on the upper surface of the secondary battery 7, and the second electrode plate 12 is brought into contact with the battery discrimination seal 9 so that the second electrode plate Although the case where the battery 12 is configured to be prevented from coming into contact with the negative electrode 7a of the secondary battery 7 is described, the present invention is not limited to this. For example, the battery discrimination seal 9 is attached to the positive electrode 7b on the lower surface of the secondary battery 7. Alternatively, the second electrode plate 12 may be brought into contact with the battery discrimination seal 9 to prevent the second electrode plate 12 from contacting the positive electrode 7b of the secondary battery 7. In this case, the first electrode plate 11 may be provided so as to be in contact with the positive electrode 7 b of the secondary battery 7, and the third electrode plate 13 may be provided so as to be in contact with the negative electrode 7 a of the secondary battery 7.

また、上記実施形態１、２では、電池判別用シール９が円形状に形成され、その中心部に貫通孔９ａが設けられた構成になっている場合について述べたが、必ずしも電池判別用シールは円形状である必要はなく、二次電池７の負極７ａと正極７ａとの一方の電極の表面を覆う形状であれば、三角形、四角形、五角形などの多角形や楕円形状などの各種の形状であっても良く、また貫通孔９ａは必ずしも中心部に設けられている必要はなく、第２電極板１２が挿入しない位置であれば、どのような位置に設けられていても良い。 In the first and second embodiments, the case where the battery discrimination seal 9 is formed in a circular shape and the through hole 9a is provided at the center thereof is described. However, the battery discrimination seal is not necessarily provided. The shape does not need to be circular, and may be various shapes such as a polygon, such as a triangle, a quadrangle, and a pentagon, and an ellipse, as long as it covers the surface of one of the negative electrode 7a and the positive electrode 7a of the secondary battery 7. The through hole 9a is not necessarily provided at the center, and may be provided at any position as long as the second electrode plate 12 is not inserted.

さらに、上記実施形態１、２では、腕時計に組み込まれる時計モジュール１に適用した場合にいて述べたが、これに限らず、トラベルウオッチや目覚まし時計、置き時計、掛け時計などの各種の時計に用いられる時計モジュールにも適用することができるほか、携帯電話機やＰＤＡ（パーソナル・デジタル・アシスタント）などの各種の電子機器にも広く適用することができる。 Further, in the first and second embodiments, the case where the present invention is applied to the timepiece module 1 incorporated in a wristwatch has been described. However, the present invention is not limited to this, and the timepiece used for various timepieces such as a travel watch, an alarm clock, a table clock, and a wall clock. Besides being applicable to modules, it can also be widely applied to various electronic devices such as mobile phones and PDAs (personal digital assistants).

この発明を適用した腕時計の時計モジュールを示した拡大断面図である。（実施形態１）It is an expanded sectional view showing a timepiece module of a wristwatch to which the present invention is applied. (Embodiment 1) 図１の二次電池を上側から見た拡大斜視図である。It is the expansion perspective view which looked at the secondary battery of FIG. 1 from the upper side. 図２の二次電池に電池判別用シールを貼り付ける状態を示した分解斜視図である。FIG. 3 is an exploded perspective view illustrating a state in which a battery discrimination seal is attached to the secondary battery of FIG. 2. 図３の電池判別用シールをベース材に複数個設けた電池判別用シールシートを示した斜視図である。FIG. 4 is a perspective view showing a battery discrimination seal sheet in which a plurality of battery discrimination seals of FIG. 3 are provided on a base material. 図１の第１電極板を示した拡大斜視図である。It is the expansion perspective view which showed the 1st electrode plate of FIG. 図１の電池収納部に一次電池を収納した場合の時計モジュールを示した拡大断面図である。FIG. 2 is an enlarged cross-sectional view showing a timepiece module when a primary battery is housed in the battery housing portion of FIG. 1. 図１の時計モジュールにおける充電装置の回路図である。It is a circuit diagram of the charging device in the timepiece module of FIG. 図７の充電装置に一次電池を装着した場合の回路図である。It is a circuit diagram at the time of attaching a primary battery to the charging device of FIG. この発明を適用した腕時計の時計モジュールにおける充電装置の回路図である。（実施形態２）It is a circuit diagram of the charging device in the timepiece module of the wristwatch to which the present invention is applied. (Embodiment 2)

Explanation of symbols

１時計モジュール
４回路基板
７二次電池
７ａ負極
７ｂ正極
８電池収納部
９電池判別用シール
９ａ貫通孔
１０電池判別用シールシート
１０ａベース材
１１第１電極板
１２第２電極板
１３第３電極板
１４一次電池
１４ａ負極
１４ｂ正極
２０、３０充電装置
２１ソーラーパネル
３１外部充電器
３２過充電防止回路 DESCRIPTION OF SYMBOLS 1 Clock module 4 Circuit board 7 Secondary battery 7a Negative electrode 7b Positive electrode 8 Battery storage part 9 Battery discrimination seal 9a Through hole 10 Battery discrimination seal sheet 10a Base material 11 First electrode plate 12 Second electrode plate 13 Third electrode plate 14 Primary battery 14a Negative electrode 14b Positive electrode 20, 30 Charging device 21 Solar panel 31 External charger 32 Overcharge prevention circuit

Claims

A power generator,
A secondary battery in which one surface is formed on the first electrode and almost all surfaces other than the one surface are formed on the second electrode, and is charged by the power generation device;
First and second conductive contact pieces provided on the surface of one of the first and second electrodes of the secondary battery so as to be in contact with each other;
A third conductive contact piece provided in contact with the surface of the other electrode of the first and second electrodes of the secondary battery;
An insulating layer which is attached to the surface of the one electrode of the secondary battery and prevents the second conductive contact piece from contacting the surface of the one electrode;
The output of the power generator is applied to the first and third conductive contact pieces,
The charging device is characterized in that charging is performed only when the second conductive contact piece is not in contact with the surface of the one electrode.

The charging device according to claim 1, wherein the first conductive contact piece is electrically connected to the second conductive contact piece.

3. The charging device according to claim 1, wherein an overcharge prevention circuit is connected to the first and third conductive contact pieces in parallel with the secondary battery.