JPH01157232A - Charging equipment for electronic timepiece - Google Patents
Charging equipment for electronic timepieceInfo
- Publication number
- JPH01157232A JPH01157232A JP62312603A JP31260387A JPH01157232A JP H01157232 A JPH01157232 A JP H01157232A JP 62312603 A JP62312603 A JP 62312603A JP 31260387 A JP31260387 A JP 31260387A JP H01157232 A JPH01157232 A JP H01157232A
- Authority
- JP
- Japan
- Prior art keywords
- charging
- output
- coil
- generated
- timer
- 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.)
- Pending
Links
- 230000008878 coupling Effects 0.000 claims description 7
- 238000010168 coupling process Methods 0.000 claims description 7
- 238000005859 coupling reaction Methods 0.000 claims description 7
- 230000010355 oscillation Effects 0.000 abstract description 8
- 239000003990 capacitor Substances 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 11
- 230000000694 effects Effects 0.000 description 6
- 230000004907 flux Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000010453 quartz Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、電磁結合により充電可能な電子時計の充電装
置に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a charging device for an electronic watch that can be charged by electromagnetic coupling.
従来より、電子時計内部に２次コイルを配置し、充電器
のコイルとの電磁結合により、非接触にて電子時計を充
電する技術が提案されている。2. Description of the Related Art Conventionally, a technique has been proposed in which a secondary coil is placed inside an electronic watch, and the electronic watch is charged in a non-contact manner through electromagnetic coupling with a coil of a charger.
例えば、特開昭６１−２９７８３がある。For example, there is Japanese Patent Application Laid-Open No. 61-29783.
しかし、従来の技術では、電子時計の充電が完了したこ
とをユーザーに知らせる、あるいは充電完了後、充電動
作を停止する手段を具備していないため、以下の様な問
題点を有する。However, the conventional technology has the following problems because it does not have a means to notify the user that charging of the electronic watch is completed or to stop the charging operation after charging is completed.
第一に、ユーザーは電子時計の充電が完了したかどうか
判断できず不安であり、これを解消するためには、自ら
充電時間を判断する等しなければならず、非常に不便で
ある。First, the user is insecure because he or she cannot judge whether or not the electronic watch has been fully charged, and in order to solve this problem, the user has to judge the charging time by himself, which is very inconvenient.
第二に、充電が完了したにもかかわらず、引き続き充電
器が作動しているのは、エネルギーの浪費である。Second, the charger continues to operate even after charging is complete, which wastes energy.
第三に、充電完了後に、充電器の作動停止手段がないと
いうことは、安全上（例えば火災防止上）でも問題があ
る。Thirdly, the fact that there is no means to stop the charger after charging is completed poses a problem in terms of safety (for example, fire prevention).
だからといって、電子時計の２次電池の電圧を検出する
端子、手段等を付加することは、電磁結合充電という非
接触充電のメリットを損なうばかりか、装置の複雑化、
コストアップ、さらには電子時計のデザイン上の制約に
もつながり、問題である。However, adding terminals, means, etc. to detect the voltage of the secondary battery of an electronic watch not only negates the benefits of non-contact charging such as electromagnetic coupling charging, but also increases the complexity of the device.
This is a problem because it leads to increased costs and also to restrictions on the design of electronic watches.
そこで本発明はこの様な問題点を解決するもの−で、そ
の目的とするところは、電磁結合充電のメリットを損な
うことなく、簡単な構成で、充電動作自動停止手段を備
えた、電子時計用充電器を提供することである。The present invention is intended to solve these problems.The purpose of the present invention is to provide a simple structure for electronic watches equipped with automatic charging operation stopping means without sacrificing the advantages of electromagnetic coupling charging. The idea is to provide a charger.
本発明の電子時計用充電装置は、少な（とも充電コイル
、および、タイマーを有し、電磁結合充電により電子時
計を充電する電子時計用充電装置に於いて、充電動作開
始後より、前記タイマーによりあらかじめ設定された時
間経過後、充電動作を停止することを特徴とする。The charging device for an electronic watch of the present invention is a charging device for an electronic watch that has a charging coil and a timer and charges an electronic watch by electromagnetic coupling charging. It is characterized by stopping the charging operation after a preset time has elapsed.
本発明の上記構成によれば、充電動作が開始されると同
時にタイマーが作動し、タイマーによりあらかじめ設定
された時間を経過すると、充電器の電源が切れ、充電動
作を自動的に停止する。According to the above configuration of the present invention, the timer is activated at the same time as the charging operation is started, and when the time preset by the timer has elapsed, the charger is powered off and the charging operation is automatically stopped.
〔実施例〕
第１図は本発明の実施例における電子時計用充電装置の
回路図であり、ｌは発振部、２，３．４゜５はスイッチ
ング素子、６はスイッチング素子により励磁される充電
コイルである。発振部ｌより出力される信号ＳＯにより
、充電コイルの励磁周波数、即ち、充電用磁界の周波数
が決定される。[Embodiment] Fig. 1 is a circuit diagram of a charging device for an electronic watch according to an embodiment of the present invention, where l is an oscillation part, 2, 3.4° 5 is a switching element, and 6 is a charging device excited by the switching element. It is a coil. The excitation frequency of the charging coil, ie, the frequency of the charging magnetic field, is determined by the signal SO output from the oscillation unit l.
また、７はタイマーコンデンサ８及びタイマー抵抗９よ
り成るＣＲタイマ一部であり、１０は単安定型スイッチ
である。また、１１は発光ダイオード（今後ＬＥＤと書
く）であり、充電動作中は点灯して、充電中であること
を表示するものである。Further, 7 is a part of a CR timer consisting of a timer capacitor 8 and a timer resistor 9, and 10 is a monostable switch. Further, 11 is a light emitting diode (hereinafter referred to as LED), which lights up during charging operation to indicate that charging is in progress.
また、■＋は電源電圧を示している。次に、本実施例の
回路動作をタイミングチャートに従い説明する。Moreover, ■+ indicates the power supply voltage. Next, the circuit operation of this embodiment will be explained according to a timing chart.
第２図は、本発明の実施例における回路のタイミングチ
ャートである。図中ＳＯは発振部１の発振 型波形を示
しており、この周波数ｆが充電磁界周波数となる。スイ
ッチ１０がＯＮした直後より、タイマーコンデンサ８に
電荷がたまり始める。ｖｃはこの時のタイマーコンデン
サ８の両端電圧を示している。ｖｃが回路により設定さ
れる ｖｔｈ（本実施例の場合、Ｖｔｈ”ＧＶ”）に到
達すると、ＮＡＮＤゲート１４の出力Ｓ３はＨｉｇｈか
らＬＯ−Ｗとなる０図示した期間Ｔにより充電動作区間
、即ち充電時間が決定される。Ｓｌ、Ｓ２はそれぞれＮ
ＡＮＤゲー） １５．１６の出力信号、即ち、それぞれ
スイソチン・グ素子２及び３，３及び５のベース入力信
号を示している０図に示した様に 、充電区間Ｔの間は
、Ｓｌ及びＳ２は極性逆でＨｉｇｈ／Ｌｏ−をくり返し
、その周波数はｆである。また、第１図に示した様に、
２．３はＰチャンネルルトランジスタ、４．５はＮチャ
ンネルトランジスタであるので、Ｓｌが）（ｉｇｈ、Ｓ
２がＬｏｗの時には、２．５がＯＮとなり、３．４がＯ
ＦＦとなる。同様に、ＳｌがＬｏｗ、Ｓ２がＨｉｇｈの
時には、３．４がＯＮとなり、２．５がＯＦＦとなる。FIG. 2 is a timing chart of a circuit in an embodiment of the present invention. In the figure, SO indicates the oscillation type waveform of the oscillator 1, and this frequency f becomes the charging magnetic field frequency. Immediately after the switch 10 is turned on, charge begins to accumulate in the timer capacitor 8. VC indicates the voltage across the timer capacitor 8 at this time. When vc reaches vth (in the case of this embodiment, Vth"GV") set by the circuit, the output S3 of the NAND gate 14 changes from High to LOW-W. time is determined. Sl and S2 are each N
As shown in Figure 0, which shows the output signals of 15.16, i.e. the base input signals of switching elements 2 and 3, 3 and 5, respectively, during the charging period T, Sl and S2 repeats High/Lo- with opposite polarity, and its frequency is f. Also, as shown in Figure 1,
Since 2.3 is a P-channel transistor and 4.5 is an N-channel transistor, Sl is )(igh, S
When 2 is Low, 2.5 is ON and 3.4 is O.
Becomes FF. Similarly, when Sl is Low and S2 is High, 3.4 is ON and 2.5 is OFF.
この様にして、スイッチング素子２〜５は、周波数ｆで
０Ｎ１０ＦＦをくり返し、充電コイル６には周波数ｆに
より向きの変わる電流が流れる。従って、充電コイル６
には周波数ｆの交流磁界が発生する。また、第２図Ｐ１
． Ｐ２はそれぞれ充電コイル両端１２．１３に発生す
る磁極の向きを示している０図に示した様に、コイル両
端の磁極の向きは周波数ｆにより反転する。In this way, the switching elements 2 to 5 repeat 0N10FF at the frequency f, and a current flows through the charging coil 6 whose direction changes depending on the frequency f. Therefore, charging coil 6
An alternating magnetic field of frequency f is generated. Also, Fig. 2 P1
．． P2 indicates the direction of the magnetic poles generated at both ends 12 and 13 of the charging coil, respectively. As shown in FIG. 0, the direction of the magnetic poles at both ends of the coil is reversed depending on the frequency f.
また、充電区間Ｔの間は、ＬＥＤはＯＮ即ち点灯し、Ｔ
以外の区間はＯＦＦ即ち消灯する。これにより、充電中
であるか否かをユーザーに知らせることができる−
第３図は、本発明の実施例における電子時計用充電装置
の外観図であり、ｌＯはスイッチ、１１は発光ダイオー
ドである。また、１７は電子時計で、１８は電子時計１
７を！！１可能な外装ケースである。また、６，６゛は
外装ケースを１８内に配置された充電コイルである。ま
た、１９．１９°は電子時計固定部材、２０は電源コー
ドである。Also, during the charging period T, the LED is ON, that is, lights up, and the T
The other sections are OFF, that is, the lights are turned off. This allows the user to be informed whether or not charging is in progress. FIG. 3 is an external view of a charging device for an electronic watch according to an embodiment of the present invention, where IO is a switch and 11 is a light emitting diode. . Also, 17 is an electronic clock, and 18 is electronic clock 1.
7! ! 1 possible exterior case. Further, reference numeral 6,6' denotes a charging coil disposed within the outer case 18. Further, 19.19° is an electronic watch fixing member, and 20 is a power cord.
第４図は、充電コイル６の詳細図である。同図より分か
る様に、一対の充電コイル６．６゛は、電磁鋼板より成
るコイルヨーク２１に貼り付けられている。また充電コ
イル１つの巻線仕様は、線径０．３鶴、巻数１７０ター
ン、インダクタンス０．６ｓＨである、形状は、平面状
おむすび型形状となっているが、他の任意形状、例えば
円型等にしても良い。FIG. 4 is a detailed diagram of the charging coil 6. As can be seen from the figure, the pair of charging coils 6.6' are attached to a coil yoke 21 made of electromagnetic steel plate. The winding specifications for one charging coil are a wire diameter of 0.3 turns, a number of turns of 170 turns, and an inductance of 0.6 sH.The shape is a flat rice ball shape, but other arbitrary shapes, such as a circular shape, can be used. etc.
第５図は、充電コイルの外装ケース１８への取付構造を
示す断面図である。充電コイル６．６”およびコイルヨ
ーク２１は、取付ネジ２２．２２°により、外装ケース
１８に直接取付られている。また、ネジによる取付以外
に、接着等により固定する方法を用いても良い、 ゛
第６図は、本発明の実施例における電子時計用充電装置
の充電原理を示す図である。充電コイルより発生した磁
束２３は、コイルヨーク２１及び電子時計内部の２次コ
イル２４の磁心２５により構成される磁気回路を通して
流れ（即ち、充電コイル６の上面のＮ極→２次コイル磁
心２５ブ充電コイル６゛の上面のＳ極→同下面のＮ極→
コイルヨーク２１→充電コイル６の下面のＳ極という経
路）、２次コイル２４には誘起電圧が発生し、整流ダイ
オード２６を通して電流が流れ、２次電池２７が充電さ
れる。FIG. 5 is a sectional view showing the mounting structure of the charging coil to the exterior case 18. The charging coil 6.6'' and the coil yoke 21 are directly attached to the exterior case 18 with a mounting screw 22.22°.Furthermore, in addition to mounting with screws, a fixing method such as adhesive may be used. 6 is a diagram showing the charging principle of the electronic watch charging device according to the embodiment of the present invention. The magnetic flux 23 generated from the charging coil is transferred to the coil yoke 21 and the magnetic core 25 of the secondary coil 24 inside the electronic watch. (i.e., N pole on the upper surface of the charging coil 6 → S pole on the upper surface of the secondary coil magnetic core 25 → N pole on the lower surface →
An induced voltage is generated in the secondary coil 24 (coil yoke 21 → S pole on the lower surface of the charging coil 6), current flows through the rectifier diode 26, and the secondary battery 27 is charged.
本発明の場合、一対の充電コイル６．６°をコイルヨー
ク２１に固定した構造であるため、充電コイルより発生
した磁束の大部分はコイルヨーク２１の内部を通り、上
述した磁路が効果的に形成される。In the case of the present invention, since the structure is such that a pair of charging coils 6.6° are fixed to the coil yoke 21, most of the magnetic flux generated from the charging coil passes through the inside of the coil yoke 21, and the above-mentioned magnetic path is effectively is formed.
このコイルヨーク２１がないと、空気中に漏れる磁束が
多くなり、充電効率が低下する。また、本発明の場合、
充電コイル６及び６°に発生する磁極が１８０度位相差
、即ち反対向きとなる様構成されているため、２次コイ
ル磁心２５を鎖交する磁束は強め合う、即ち【一方の充
電コイルより発生した磁束は２次コイル磁心を通り、も
う一方の充電コイルに確実に鎖交することにより、充電
効率が高められる。Without this coil yoke 21, more magnetic flux would leak into the air, reducing charging efficiency. In addition, in the case of the present invention,
Since the magnetic poles generated in the charging coils 6 and 6° are configured to have a 180 degree phase difference, that is, in opposite directions, the magnetic fluxes interlinking the secondary coil magnetic core 25 strengthen each other, that is, [generated by one charging coil] The generated magnetic flux passes through the secondary coil magnetic core and reliably interlinks with the other charging coil, thereby increasing charging efficiency.
次に、第１図における発振部１の出力信号ＳＯの周波数
について説明する。第７図は、充電用交流磁界により、
電子時計のステップモーターのロータが振動又は回転し
、運針のミスリ、とビリ等の影響を受は始める限界の周
波数と、ロータの慣性モーメント（直径をパラメータに
示しである）の関係を示す図である０図より分かる様に
、ロータ慣性モーメントがｔｓ （ロータ径３ｍ）の
時には、２００Ｈｚ以上の磁界にはロータが追従せず、
運針への影響はない。同様に、ロータの慣性モーメント
が１．（ロータ径１＋ｏｔ）の時には、磁界周波数を６
００ Ｈｚ以上にすれば運針への影響はない。Next, the frequency of the output signal SO of the oscillation section 1 in FIG. 1 will be explained. Figure 7 shows that due to the charging AC magnetic field,
This is a diagram showing the relationship between the limit frequency at which the rotor of the step motor of an electronic watch begins to vibrate or rotate, and is affected by erroneous hand movement, chatter, etc., and the moment of inertia of the rotor (diameter is shown as a parameter). As can be seen from a certain diagram, when the rotor moment of inertia is ts (rotor diameter 3 m), the rotor does not follow a magnetic field of 200 Hz or more,
There is no effect on hand movement. Similarly, the moment of inertia of the rotor is 1. (rotor diameter 1+ot), the magnetic field frequency is 6
If the frequency is set to 00 Hz or higher, there will be no effect on the movement of the hands.
一般に、アナログクォーツウォッチにおいては、その寸
法制約上からロータ径は３日程度が最大であり、また、
ロータの加工能力上、ロータ径は１日程度が最小である
。さらに、現在主流である小型薄型アナログクォーツに
おいては、ロータ径は１．５寵以下のものがほとんどで
ある。従って、実用的には、充電用交流磁界周波数、即
ち、ＳＯの周波数は５００Ｈ２以上に設定しておけば問
題はない。Generally, in analog quartz watches, the maximum rotor diameter is about 3 days due to dimensional constraints, and
In terms of rotor processing capacity, the minimum rotor diameter is about one day. Furthermore, most of the currently mainstream small and thin analog quartz models have a rotor diameter of 1.5 mm or less. Therefore, practically, there is no problem if the charging AC magnetic field frequency, that is, the frequency of SO, is set to 500H2 or higher.
第８図は、充電磁界周波数と、２次コイルから２次電池
へと流れる充電電流の関係を示す図である。本実施例の
場合、充電コイルの仕様は線径０．３鶴、巻数１７０タ
ーン、インダクタンス０．６ｄで、インダクタンス０．
５Ｈとなっている。図から分かる様に、充電電流は、周
波数１０００Ｈｚ付近で最大となる。また、前述した様
に、磁界の周波数を５００Ｈｚ以上に設定すれば運針へ
の影響もない。従って、本実施例では充電磁界周波数、
即ち発振周波数ＳＯを１０００Ｈｚに設定している。FIG. 8 is a diagram showing the relationship between the charging magnetic field frequency and the charging current flowing from the secondary coil to the secondary battery. In the case of this example, the specifications of the charging coil are a wire diameter of 0.3, a number of turns of 170, and an inductance of 0.6d.
It is 5H. As can be seen from the figure, the charging current reaches its maximum near a frequency of 1000 Hz. Further, as described above, if the frequency of the magnetic field is set to 500 Hz or more, there will be no effect on the movement of the hands. Therefore, in this embodiment, the charging magnetic field frequency,
That is, the oscillation frequency SO is set to 1000 Hz.
次に、本発明の実施例におけるタイマーの設定時間（第
２図のＴ）について説明する。第９図は本実施例におけ
る充電装置による、充電時間と電子時計２次電池の電圧
上昇の関係を示した図である。本実施例の場合、充電コ
イルの仕様は線径０．３報、巻数１７０ターン、インダ
クタンス０．６ｄであり、電子時計の２次コイルの仕様
は線径０．０３５ ｍ、巻数３８３０ターン、インダク
タンス０．５Ｈである。Next, the timer setting time (T in FIG. 2) in the embodiment of the present invention will be explained. FIG. 9 is a diagram showing the relationship between the charging time and the voltage rise of the electronic watch secondary battery using the charging device in this embodiment. In the case of this example, the specifications of the charging coil are a wire diameter of 0.3 m, the number of turns of 170 turns, and an inductance of 0.6 d, and the specifications of the secondary coil of the electronic watch are a wire diameter of 0.035 m, a number of turns of 3830 turns, and an inductance of 0.6 d. It is 0.5H.
また、電源電圧Ｖ”＝８Ｖ、発振部の周波数は、１００
０Ｈｚである。図に示した様に５分間充電を行えば、２
次電池や電圧は１．５ Ｖを越え、ウォッチ用２次電池
の充電量としては実用上充分である。In addition, the power supply voltage V''=8V, and the frequency of the oscillation part is 100V.
It is 0Hz. If you charge for 5 minutes as shown in the figure, 2
The voltage of the secondary battery exceeds 1.5 V, which is sufficient for practical purposes as a rechargeable battery for a watch.
さちに、停止している電子時計でも、電池電圧は０．４
〜０．８ｖ程度はあり、実際には３分充電すれば実用上
問題ない。By the way, even when the electronic watch is stopped, the battery voltage is 0.4
There is about ~0.8V, and there is no problem in practical use if you charge it for 3 minutes.
タイマー設定時間Ｔは、第１図のタイマーコンデンサの
容量Ｃおよびタイマー抵抗の抵抗値Ｒに比例する。即ち
、Ｔζ０．６９３ ＣＲで表せる。The timer setting time T is proportional to the capacitance C of the timer capacitor and the resistance value R of the timer resistor shown in FIG. That is, it can be expressed as Tζ0.693 CR.
本実施の場合、Ｃ＝４７μＦ、Ｒ＝６ＭΩとしてりイマ
ー時間Ｔを約３分に設定している。In this embodiment, C=47 μF, R=6 MΩ, and the timer time T is set to about 3 minutes.
（発明の効果〕
以上述べた様に本発明は、少なくとも充電コイル、およ
び、タイマーを有し、電磁結合充電により電子時計を充
電する電子時計用充電装置に於いて、充電動作開始後よ
り、前記タイマーによりあらかじめ設定された時間経過
後、充電動作を停止することにより、電磁結合充電のメ
リット（電気的、機械的接合手段を必要としない非接触
充電）を損なうことなく、簡単な構成で１．充電動作自
動停止機能を備えた電子の時計充電装置を実現できると
いう効果を有する。(Effects of the Invention) As described above, the present invention provides an electronic watch charging device that includes at least a charging coil and a timer and that charges an electronic watch by electromagnetic coupling charging. By stopping the charging operation after a preset time has elapsed using a timer, 1. This has the effect of realizing an electronic watch charging device with an automatic charging operation stop function.
さらに、充電装置は自動的に停止するため、ユーザーは
常にそばにいる必要はなく、手軽に使える。また、発熱
、火災等の心配もない。Furthermore, since the charging device automatically stops, the user does not have to be nearby at all times, making it easy to use. Also, there is no need to worry about heat generation or fire.
以上、本発明の実用上の効果は大である。As described above, the practical effects of the present invention are great.
第１図は本発明の実施例における電子時計用充電装置の
回路図。
第２図は本発明の実施例における電子時計用充電装置の
回路タイミングチャート。
第３図は本発明の実施例における電子時計用充電装置の
外観図。
第４図は充電コイルの詳細図。
第５図は充電コイルの取付構造断面図。
第６図は充電原理図
第７図は限界周波数とロータ慣性モーメントの関係図。
第８図は充電磁界周波数と充電電流の関係図。
第９図は充電時間と２次電池電圧の関係図。
６−・−充電コイル ７・−・−タイマ一部。
以 上
出願人 セイコーエプソン株式会社
代理人 弁理士 最 上 務他１名
範３ 図
菖４−図
１ 図
茅 ′７ 図
第 ｇ 図FIG. 1 is a circuit diagram of a charging device for an electronic watch in an embodiment of the present invention. FIG. 2 is a circuit timing chart of a charging device for an electronic watch in an embodiment of the present invention. FIG. 3 is an external view of a charging device for an electronic watch in an embodiment of the present invention. Figure 4 is a detailed diagram of the charging coil. FIG. 5 is a sectional view of the mounting structure of the charging coil. Fig. 6 shows the principle of charging, and Fig. 7 shows the relationship between the limit frequency and rotor inertia moment. FIG. 8 is a diagram showing the relationship between charging magnetic field frequency and charging current. FIG. 9 is a diagram showing the relationship between charging time and secondary battery voltage. 6--Charging coil 7--Part of the timer. Applicant Seiko Epson Co., Ltd. Agent Patent attorney Tsutomu Mogami and one other person Han 3 Iris 4-Figure 1 Iris '7 Figure g
Claims (1)
合充電により電子時計を充電する電子時計用充電装置に
於いて、充電動作開始後より、前記タイマーによりあら
かじめ設定された時間経過後、充電動作を停止すること
を特徴とする電子時計用充電装置。In a charging device for an electronic watch that has at least a charging coil and a timer and charges an electronic watch by electromagnetic coupling charging, the charging operation is stopped after a time preset by the timer has elapsed from the start of the charging operation. A charging device for an electronic watch characterized by the following.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62312603A JPH01157232A (en) | 1987-05-25 | 1987-12-10 | Charging equipment for electronic timepiece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62312603A JPH01157232A (en) | 1987-05-25 | 1987-12-10 | Charging equipment for electronic timepiece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01157232A true JPH01157232A (en) | 1989-06-20 |
Family
ID=18031196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62312603A Pending JPH01157232A (en) | 1987-05-25 | 1987-12-10 | Charging equipment for electronic timepiece |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01157232A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010220409A (en) * | 2009-03-17 | 2010-09-30 | Ricoh Elemex Corp | Primary side core of non-contact energy transmission device, primary side core determination method of non-contact energy transmission device, and charger of electronic clock for non-contact charging |
| JP2010219331A (en) * | 2009-03-17 | 2010-09-30 | Ricoh Elemex Corp | Contactless energy transmission device, electronic clock, charging device, and method of determining core form of the contactless energy transmission device |
| JP2010219330A (en) * | 2009-03-17 | 2010-09-30 | Ricoh Elemex Corp | Primary coil and secondary coil of contactless energy transmission device, method of determining coil conditions of contactless energy transmission device |
| WO2011096569A1 (en) * | 2010-02-05 | 2011-08-11 | 日立金属株式会社 | Magnetic circuit for a non-contact charging device, power supply device, power receiving device, and non-contact charging device |
| JP2015210106A (en) * | 2014-04-24 | 2015-11-24 | セイコーエプソン株式会社 | Electronic apparatus and control method of the same |
-
1987
- 1987-12-10 JP JP62312603A patent/JPH01157232A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010220409A (en) * | 2009-03-17 | 2010-09-30 | Ricoh Elemex Corp | Primary side core of non-contact energy transmission device, primary side core determination method of non-contact energy transmission device, and charger of electronic clock for non-contact charging |
| JP2010219331A (en) * | 2009-03-17 | 2010-09-30 | Ricoh Elemex Corp | Contactless energy transmission device, electronic clock, charging device, and method of determining core form of the contactless energy transmission device |
| JP2010219330A (en) * | 2009-03-17 | 2010-09-30 | Ricoh Elemex Corp | Primary coil and secondary coil of contactless energy transmission device, method of determining coil conditions of contactless energy transmission device |
| WO2011096569A1 (en) * | 2010-02-05 | 2011-08-11 | 日立金属株式会社 | Magnetic circuit for a non-contact charging device, power supply device, power receiving device, and non-contact charging device |
| CN102741954A (en) * | 2010-02-05 | 2012-10-17 | 日立金属株式会社 | Magnetic circuit for a non-contact charging device, power supply device, power receiving device, and non-contact charging device |
| JP5477393B2 (en) * | 2010-02-05 | 2014-04-23 | 日立金属株式会社 | Magnetic circuit for non-contact charging device, power supply device, power receiving device, and non-contact charging device |
| US9143041B2 (en) | 2010-02-05 | 2015-09-22 | Hitachi Metals, Ltd. | Magnetic circuit, power-supplying device and power-receiving device for non-contact charging apparatus, and non-contact charging apparatus |
| JP2015210106A (en) * | 2014-04-24 | 2015-11-24 | セイコーエプソン株式会社 | Electronic apparatus and control method of the same |
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