JPH02126574A - Charging method for secondary cell, secondary cell pack, and power source for charging - Google Patents

Charging method for secondary cell, secondary cell pack, and power source for charging

Info

Publication number
JPH02126574A
JPH02126574A JP63278599A JP27859988A JPH02126574A JP H02126574 A JPH02126574 A JP H02126574A JP 63278599 A JP63278599 A JP 63278599A JP 27859988 A JP27859988 A JP 27859988A JP H02126574 A JPH02126574 A JP H02126574A
Authority
JP
Japan
Prior art keywords
secondary battery
charging
secondary cell
wire
power source
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
Application number
JP63278599A
Other languages
Japanese (ja)
Inventor
Masahiro Ichimura
雅弘 市村
Shizuo Ozora
大空 静男
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP63278599A priority Critical patent/JPH02126574A/en
Publication of JPH02126574A publication Critical patent/JPH02126574A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/42Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/44Methods for charging or discharging
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

Abstract

PURPOSE:To make it possible to use the charging method even in an inferior environment such as presenting a large amount of moisture, dirt, or corrosive gas by transferring the energy electromagnetically through coils provided at both a secondary cell pack side and a charging power source side, to charge the secondary cell. CONSTITUTION:When a secondary cell is charged, a secondary cell pack 1 and a power source 7 for charging are approached each other, and a coil 4 and a coil 9 are made to combine electromagnetically. By feeding an AC power to the coil 9 from a terminal 12, the density of the generated magnetic flux varies responding to the frequency of the applied AC current. This variation is transmitted to the coil 4 through cores 8 and 5, and a power to feed as the input of the charging circuit 3 for the secondary cell is generated. As a result, the secondary cell 2 can be charged without connecting wires between the secondary cell 2 and the charging power source 7 or without contacting physically. Consequently, it can be used even in an interior environment presenting a lot of moisture, dirt, or a corrosive gas, for example.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、充電用電源と二次電池パックを近接させるこ
とにより電線で接続せずに、あるいは接点等による物理
的な接触をすることなしに、二次電池を充電する方法、
およびとれに使用する二次電池パックと充電用電源に関
するものである。
[Detailed Description of the Invention] [Industrial Application Field] The present invention allows a charging power source and a secondary battery pack to be brought close to each other without connecting them with electric wires or making physical contact with them through contacts, etc. How to charge a secondary battery,
The present invention also relates to a secondary battery pack and a charging power source used in the tore.

〔従来の技術〕[Conventional technology]

二次電池は、化学的に蓄えられたエネルギーを放電時に
電気的エネルギーとして放出し、充電時に外部から供給
される電気的エネルギーを化学的エネルギーとして蓄え
ることができる丸め、繰シ返し利用することができ、携
帯用をはじめ多くの電気器具に使用されている。第8図
に従来の一般的な充電方法を示す。2は二次電池であシ
、6aおよび6bは充電用および負荷を接続する端子で
ある。この図は、二次電池を内蔵した電池79ツク1′
を例にして説明しているが、電池単体でも同様である。
Secondary batteries release chemically stored energy as electrical energy when discharging, and store electrical energy supplied from the outside as chemical energy when charging.They can be rolled up and used repeatedly. It is used in many electrical appliances, including portable ones. FIG. 8 shows a conventional general charging method. 2 is a secondary battery, and 6a and 6b are terminals for charging and connecting a load. This diagram shows a battery 79tsu1' with a built-in secondary battery.
Although the explanation is given using an example, the same applies to a single battery.

7′は二次電池を充電する充電器である。7' is a charger for charging the secondary battery.

3は端子12からの交流あるいは直流を受けて端子15
&および15bに直流を出力する充電回路である。なお
、10はスイッチ、IIはヒユーズである。二次電池2
を充電する場合、二次電池の端子6轟、6bと充電回路
の端子15*、15bを物理的に接触させるか、あるい
は充電用電線16を介して両端子を電気的に接続する。
3 receives the alternating current or direct current from the terminal 12 and connects it to the terminal 15.
This is a charging circuit that outputs direct current to & and 15b. Note that 10 is a switch and II is a fuse. Secondary battery 2
When charging, the terminals 6, 6b of the secondary battery and the terminals 15*, 15b of the charging circuit are brought into physical contact, or the two terminals are electrically connected via the charging wire 16.

第9図(a) e (b)は二次電池の使用例である。Figures 9(a), e(b) are examples of how secondary batteries are used.

第9図(、)は使用する電気機器14′に二次電池2あ
るいは二次電池パック1′を着脱できるようになってい
る場合であシ、二次電池2と電機機器14′とは接点6
th 、6bを介して電気的に接続されている。
Figure 9 (,) shows a case where the secondary battery 2 or secondary battery pack 1' can be attached to and removed from the electrical equipment 14' used, and the secondary battery 2 and the electrical equipment 14' are at the contact point. 6
th, and are electrically connected via 6b.

二次電池2が放電し終わったら、電気機器14′よシ取
シ出し、!8図に示した充電方法によシ充電し、再度電
気機器14′に取シつけて使用する。
When the secondary battery 2 has finished discharging, remove it from the electrical equipment 14'! It is charged according to the charging method shown in FIG. 8, and is used again by attaching it to the electrical equipment 14'.

13は負荷である。第9図(b)は、使用する電気機器
14′に二次電池パック1′が内蔵されている場合であ
る。二次電池パック1′は電気機器14′内部の接続端
子6g 、6bで電気的に接続されている。
13 is a load. FIG. 9(b) shows a case where a secondary battery pack 1' is built into the electrical equipment 14' to be used. The secondary battery pack 1' is electrically connected through connection terminals 6g and 6b inside the electrical device 14'.

この場合にはこの二次電池パック1′を充電するために
、外部端子15m、15bを設ける必要がある。
In this case, it is necessary to provide external terminals 15m and 15b in order to charge this secondary battery pack 1'.

〔発明が解決しようとするH題〕[Problem H that the invention attempts to solve]

ところで、従来の技術では、環境の悪い、例えば湿気、
i埃、あるいは腐食性ガスの多く存在する環境中で、二
次電池ちるいはこれを使用した電気機器を充電する場合
、二次電池パックや電気機器の端子、充電用電線(ケー
ブル)の端末部に水分や汚染物質が付着するのを防ぐの
は難しい。これらが付着すると接点等が腐食によシ損傷
を受け、電気的な接触が困難になるばかシか、水に電解
質が溶は込んでいれば、グラスとマイナス間で短絡し、
電池が消耗しまた機器の正常動作が困難になシ、使用上
大きな制約があった。特に、水中で使用する電気機器の
例のように、電気機器14′に高度の防水性が要求され
る場合、第9図(、)における接点6m、6bおよび第
9図(b)における外部端子15a、15bの防水性の
確保が問題になる。第9図(alの場合は二次電池)9
ツク1′を出し入れする部分の蓋に防水dツキングを、
また、第9図価)の場合には外部端子部に防水ノ臂ツキ
ング付きの蓋を設けることによシ防水性の確保は可能で
あるが、二次電池ノ’?ツク1′の取付けや充電終了の
たびに、ノクツキングを有効な状態で蓋を取9つけられ
る保証は無く、信頼性や使い易さの点で大きな問題であ
った。
By the way, with conventional technology, it is difficult to use the
i When charging a secondary battery or an electrical device using it in an environment where there is a lot of dust or corrosive gas, do not charge the terminal of the secondary battery pack, the terminal of the electrical device, or the terminal of the charging wire (cable). It is difficult to prevent moisture and contaminants from adhering to the parts. If these adhere, the contacts will be damaged by corrosion, making it difficult to make electrical contact, or if the electrolyte is dissolved in the water, it will cause a short circuit between the glass and the negative.
The batteries were exhausted and the equipment was difficult to operate properly, which caused major limitations in its use. In particular, when the electrical equipment 14' is required to have a high level of waterproofness, such as the example of electrical equipment used underwater, the contacts 6m and 6b in Figure 9(,) and the external terminal in Figure 9(b) Ensuring waterproofness of 15a and 15b becomes a problem. Figure 9 (secondary battery in case of al) 9
Waterproof d-tuck on the lid of the part where you put in and take out the tsuku 1'.
In addition, in the case of Figure 9), it is possible to ensure waterproofness by providing a lid with a waterproof sleeve on the external terminal part, but what about the secondary battery? There is no guarantee that the lid can be reattached with knocking enabled each time the knocking 1' is installed or charging is completed, which is a major problem in terms of reliability and ease of use.

本発明の目的は、劣悪な環境中、例えば湿気。The purpose of the invention is in harsh environments, such as humidity.

塵埃、あるいは腐食性ガスの多く存在する環境中におけ
る二次電池パックあるいはこれを使用した電気機器の劣
化を防止し、また使用上の制限を取シ除いた、二次電池
の充電方法およびこれに使用する二次電池ノ蓼ツクと充
電用電源を提供することにある。
A method for charging a secondary battery, which prevents deterioration of a secondary battery pack or an electrical device using the same in an environment where there is a lot of dust or corrosive gas, and eliminates restrictions on use, and the method thereof. The purpose is to provide a secondary battery source and a power source for charging.

〔課題を解決するための手段と作用〕[Means and actions to solve the problem]

本発明は上記目的を達成するために、二次電池・!ツク
側と充電用電源側の双方に設けた線輪を介して、電磁気
的にエネルギーを移動し、二次電池を充電することを最
も主な特徴とする。従来の発明とは物理的な接触なしに
二次電池を充電する点が異なる。
In order to achieve the above-mentioned object, the present invention provides a secondary battery! The main feature is that energy is electromagnetically transferred to charge the secondary battery via wires provided on both the power supply side and the charging power source side. This invention differs from conventional inventions in that the secondary battery is charged without physical contact.

〔実施例〕〔Example〕

本発明の実施例を第1図および第2図にょシ説明する。 An embodiment of the present invention will be explained with reference to FIGS. 1 and 2.

第1図は本発明による二次電池の充電方法を示す。1は
二次電池2を内蔵した二次電池パックである。二次電池
2の両端は二次電池用充電回路3の出力端に接続されて
いる。この二次電池用充電回路3は交流を入力として動
作するものであシ、この入力回路には線輪4が接続され
ている。
FIG. 1 shows a method of charging a secondary battery according to the present invention. Reference numeral 1 denotes a secondary battery pack containing a secondary battery 2. Both ends of the secondary battery 2 are connected to output ends of a secondary battery charging circuit 3. This secondary battery charging circuit 3 operates with alternating current as input, and a coil 4 is connected to this input circuit.

5は透磁率の大きな物質で形成されたコアであう、外部
の磁界の変化を効率よく線輪4に伝え大きな交流電力を
生じさせるためのものである。6a。
Reference numeral 5 denotes a core made of a material with high magnetic permeability, which efficiently transmits changes in the external magnetic field to the wire ring 4 and generates large alternating current power. 6a.

6bは充電された電池から電力を取り出すための端子で
ある。また、外装Aの全体あるいは少なくとも線輪4に
対応した外装部分は磁力線を透過する物質で構成される
。7は二次電池パック1を充電するための充電用電源で
ある。端子12はスイッチ10およびヒユーズ11を介
して線輪9と接続する。8は透磁率の大きな物質で形成
されたコアであυ、線輪9で発生する磁束度の変化を効
率よく外部に放出するだめのものである。この充電用電
源7もその外装Aの全体あるいは少なくとも線輪9に対
応した外装部分は磁力線を透過する物質で構成される。
6b is a terminal for extracting power from the charged battery. Further, the entire exterior A or at least the exterior portion corresponding to the wire ring 4 is made of a material that transmits magnetic lines of force. 7 is a charging power source for charging the secondary battery pack 1. Terminal 12 is connected to coil 9 via switch 10 and fuse 11. A core 8 is made of a material with high magnetic permeability and is used to efficiently release changes in magnetic flux generated in the wire ring 9 to the outside. This charging power source 7 also has its entire exterior A or at least the exterior portion corresponding to the wire ring 9 made of a material that transmits magnetic lines of force.

二次電池2を充電する時は、まず二次電池パック1と充
電用電源7を充分近づけ、両者の線輪4および9が電磁
気的に強く結合するようにする。端子12よシ線輪9に
交流電力を供給すると、発生する磁束の密度は印加され
た交流の周波数に応じて変化する。この変化をコア8及
び5を介して線輪4に効率よく伝え、二次電池用充電回
路3の入力として供給するだめの電力を発生させる。こ
のようにして二次電池2は、充電用電源7との間で電線
を接続することなしに、あるいは物理的に接触をするこ
となしに充電を行うことができる。充電用電源1に供給
する交流の周波数に制限はないが、周波数を高くすると
同じ形状の線輪でより多くのエネルギーを転送すること
ができるため、装置を小型化できる。また商用電源をそ
のまま用いれば構成が簡単になり安価な装置が実現でき
る。またコア5と8にフェライトのような絶縁物を用い
れば、両コアをできるだけ空隙がないように接触させた
場合、電気的な絶縁を保ったままで、両線輪を介してよ
り効率良く電力が転送できる。第2図は本発明の二次電
池パック1を電気機器14内に組み込んだ図である。二
次電池パック1は端子6a、6bを介して負荷13に接
続されている。電気機器14の外装Aも線輪4と対応す
る部分あるいは全部が磁力線を透過する物質で構成され
る。このように本発明の電池を内蔵して使用すれば、外
部に電気的な端子を一切設けない電気機器を実現するこ
とができる。
When charging the secondary battery 2, first the secondary battery pack 1 and the charging power source 7 are brought close enough to each other so that the wires 4 and 9 of the two are strongly electromagnetically coupled. When AC power is supplied from the terminal 12 to the wire ring 9, the density of the generated magnetic flux changes depending on the frequency of the applied AC. This change is efficiently transmitted to the coil 4 via the cores 8 and 5 to generate additional power to be supplied as an input to the secondary battery charging circuit 3. In this way, the secondary battery 2 can be charged without connecting an electric wire or physically contacting the charging power source 7. There is no limit to the frequency of the alternating current supplied to the charging power source 1, but if the frequency is increased, more energy can be transferred with the same wire ring, so the device can be made smaller. Furthermore, if a commercial power source is used as is, the configuration becomes simple and an inexpensive device can be realized. In addition, if an insulator such as ferrite is used for cores 5 and 8, if the two cores are brought into contact with as little air gap as possible, electric power can be transferred more efficiently through both wires while maintaining electrical insulation. Can be transferred. FIG. 2 is a diagram in which the secondary battery pack 1 of the present invention is incorporated into an electrical device 14. Secondary battery pack 1 is connected to load 13 via terminals 6a and 6b. The exterior A of the electric device 14 also has a portion corresponding to the wire ring 4 or the entirety made of a material that transmits magnetic lines of force. By incorporating and using the battery of the present invention in this way, it is possible to realize an electrical device that does not have any external electrical terminals.

第3図(a) * (b)は本発明の第1の具体的実施
例であシ、保温皿に適用した例である。21は例えば特
願昭63−185085号「二次電池およびその製造方
法」で記載された方法によ)製造された超薄形二次電池
であシ、22は該超薄形二次電池21を充電するためチ
ップ上に形成されたダイオードや抵抗等により構成され
た充電回路、23は断熱層、24は発熱体、25は線輪
、26はコア、27は耐熱性合成樹脂である。本実施例
における二次電池ノ9ツクは、22,22,25および
26で構成される。この保温皿を使用するには、第1図
に示した充電用電源7に第3図の保温皿を載せる。この
時、充電用電源7の線輪9は、保温皿の線輪25との間
で電磁的に強く結合する位置、即ち両線輪19と25が
近接するように配置する。
FIGS. 3(a) and 3(b) show a first specific embodiment of the present invention, which is an example applied to a heat-retaining plate. 21 is an ultra-thin secondary battery manufactured, for example, by the method described in Japanese Patent Application No. 185085/1985 (Secondary Battery and Method for Manufacturing the Same); 22 is the ultra-thin secondary battery 21; 23 is a heat insulating layer, 24 is a heating element, 25 is a coil, 26 is a core, and 27 is a heat-resistant synthetic resin. The secondary battery block in this embodiment is composed of 22, 22, 25, and 26. To use this heat-insulating plate, place the heat-insulating plate shown in FIG. 3 on the charging power source 7 shown in FIG. 1. At this time, the wire ring 9 of the charging power source 7 is placed at a position where it is electromagnetically strongly coupled to the wire ring 25 of the heat-insulating plate, that is, so that both the wire rings 19 and 25 are close to each other.

充電用電源7は商用電源からの電力を高周波化して線輪
9に供給し、保温皿の線輪25に高周波の交流を誘起さ
せることによシ装置全体を小型化している。保温皿の線
輪25に誘起した交流を、二次電池用充電回路22で直
流出力に変換し、超薄形二次電池21を充電するととも
に、発熱体24に電流を流し保温皿の加熱を開始する。
The charging power source 7 converts power from a commercial power source into a high frequency and supplies it to the wire ring 9, thereby inducing high frequency alternating current in the wire wire 25 of the heat-insulating plate, thereby reducing the size of the entire device. The alternating current induced in the wire ring 25 of the heat-insulating plate is converted into a DC output by the secondary battery charging circuit 22 to charge the ultra-thin secondary battery 21, and at the same time, current is passed through the heating element 24 to heat the heat-insulating plate. Start.

所期の充電が完了したら、保温皿を充電用電源よシ取り
外し、食物を盛シつける。この時から、保温皿に内蔵し
た超薄形二次電池21より発熱体24に電流が流れ、超
薄形二次電池2ノが全放電するまで食物を保温すること
ができる。本実施例では、線輪25を保温皿の外周に同
心円状に配置し、線輪25の内側には透磁率の大きな物
質で形成されたコア26を配置している。第4図はこの
保温皿を複数枚重ねて充電する例であり、第4図の点線
49に示すように磁路が形成され効率よく充電すること
ができる。40はコア、4ノは線輪、42は充電用電源
である。このように、本発明による充電方式を適用すれ
ば、保温皿の外表面に充電のための電気的接点を設ける
必要がないため接点の腐食等による劣化の心配がなく、
容易に保温皿を水洗することができ、また美観を損なう
ことがない。また写真製版の技術を用いて形成されたシ
ート状の線輪およびコア、前述の超薄形二次電池、チッ
プ上に形成された薄形の充電回路、断熱材の薄板上にカ
ーメンを蒸着することにより形成した発熱体を適用する
ことにより、薄いことが要求される皿への応用が可能と
なった。
When the desired charging is completed, remove the heating plate from the charging power source and place the food on it. From this point on, current flows from the ultra-thin secondary battery 21 built into the heat-insulating dish to the heating element 24, and the food can be kept warm until the ultra-thin secondary battery 2 is fully discharged. In this embodiment, the wire ring 25 is arranged concentrically around the outer periphery of the heat-insulating plate, and the core 26 made of a material with high magnetic permeability is arranged inside the wire ring 25. FIG. 4 shows an example in which a plurality of heat-retaining plates are stacked and charged, and a magnetic path is formed as shown by the dotted line 49 in FIG. 4, allowing efficient charging. 40 is a core, 4 is a wire, and 42 is a charging power source. In this way, if the charging method according to the present invention is applied, there is no need to provide electrical contacts for charging on the outer surface of the heat-insulating plate, so there is no need to worry about deterioration due to corrosion of the contacts, etc.
The heat-retaining plate can be easily washed with water and does not spoil its appearance. In addition, carmen is vapor-deposited on sheet-like coils and cores formed using photolithography technology, the aforementioned ultra-thin secondary battery, a thin charging circuit formed on a chip, and a thin plate of heat insulating material. By applying the heating element formed by this method, it has become possible to apply it to dishes that are required to be thin.

第5図は本発明を保温皿に適用したに2の具体的実施例
である。第1の具体的実施例と異なる主な点は1本発明
における二次電池パック部および充電用電源部の線輪2
5およびコア26の部分の形状である。線輪25および
コア26は保温皿下部表面に位置し、コア26は下向き
にE型の形状をしており端部を表面に露出させる。第1
図の充電用電源7側の線輪9およびコア8は、充電時に
保温皿のそれと対峙するように位置させ、上向きのE型
のコア8の端部は保温皿のコア26と微小な隙間を介し
て接するようにする。このような構造にすることにより
、第6図の点線50に示すように保温皿および充電用電
源の両者のコア26と8によシ磁路が形成され効率よく
充電することができる。この場合、保温皿下部表面にコ
ア26が露出するが、コアの材料であるフェライトは絶
縁性で不溶性であるため水洗いしても問題なく、また、
露出面が皿の下部表面であるため美観上問題になること
はない。
FIG. 5 shows a second specific embodiment in which the present invention is applied to a heat-retaining plate. The main points different from the first specific example are 1. The wire loops of the secondary battery pack section and the charging power supply section in the present invention.
5 and the shape of the core 26. The wire ring 25 and the core 26 are located on the lower surface of the heat-retaining dish, and the core 26 has an E-shape facing downward, and its end portion is exposed on the surface. 1st
The wire ring 9 and the core 8 on the side of the charging power source 7 in the figure are positioned so as to face those of the heat-insulating tray during charging, and the upwardly facing E-shaped end of the core 8 has a minute gap with the core 26 of the heat-insulating dish. Let's communicate through each other. With this structure, a magnetic path is formed between the cores 26 and 8 of both the heat-retaining dish and the charging power source, as shown by the dotted line 50 in FIG. 6, so that efficient charging can be achieved. In this case, the core 26 is exposed on the lower surface of the heat-insulating plate, but since the ferrite that is the material of the core is insulating and insoluble, there is no problem even if it is washed with water.
Since the exposed surface is the lower surface of the dish, there is no aesthetic problem.

第7図(al # (b)は本発明による二次電池パッ
クを内蔵した携帯用発光体の第3の具体的実施例でおる
。21は前述の超薄形二次電池であシ、22はこの二次
電池を充電する回路、25は充電回路の入力に接続され
た線輪、26は透磁率の大きな材料で形成されたコアで
ある。前記実施例と同様の充電用電源により充電された
超薄形二次電池21は、押しボタン30を押すことによ
シ発光体たとえばエレクトロルミネッセンス(EL)素
子29に電流を供給し発光させる。ここで、写真製版の
技術を用いて形成されたシート状の線輪およびコア、前
述の超薄形二次電池、チップ上に形成された薄形の充電
回路およびエレクトロルミネッセンス素子により構成す
ることにより、洋服等のポケット、財布や名刺入れに容
易に収納できる携帯用発光体が実現できた。従来の技術
を用いた充電方法では携行時あるいは使用時の充電用端
子部における短絡を防ぐため、端子部の保護カバーカニ
必要であったが1本発明の技術を用いれば、外部に電気
的端子を設ける必要がなくなったため、雨の中や水中の
ように電気器具にとって厳しい環境中での使用も可能と
なった。
FIG. 7 (al # (b) shows a third specific embodiment of a portable light emitter incorporating a secondary battery pack according to the present invention. 21 is the ultra-thin secondary battery described above, 22 is a circuit for charging this secondary battery, 25 is a wire connected to the input of the charging circuit, and 26 is a core made of a material with high magnetic permeability. The ultra-thin secondary battery 21 supplies current to a light-emitting element, such as an electroluminescence (EL) element 29, to emit light by pressing a push button 30. Composed of a sheet-like wire ring and core, the aforementioned ultra-thin secondary battery, a thin charging circuit formed on a chip, and an electroluminescent element, it can be easily placed in a pocket of clothes, a wallet, or a business card holder. A portable light emitter that can be stored has been realized.In the charging method using conventional technology, a protective cover for the terminal part was required to prevent short circuits at the charging terminal part when carrying or using it. The technology eliminates the need for external electrical terminals, making it possible to use electrical appliances in environments that are harsh to them, such as in the rain or underwater.

〔発明の効果〕〔Effect of the invention〕

以上説明したように、本発明による二次電池の充電方法
では、二次電池パック部と充電用電源部とを電気的な接
触をせずに充電できることから、外部に電気的端子を全
く設けない二次電池内蔵の電気機器を実現することがで
きる。本発明は以上の実施例のほかに、二次電池を内蔵
した機器の充電に幅広く応用でき、特に防水性あるいは
耐薬品性を持たせることができるため、劣悪な環境中、
例えば湿気、塵埃、あるいは腐食性ガスの多く存在する
環境中での使用を可能とし、寿命を長くする利点がある
As explained above, in the method for charging a secondary battery according to the present invention, since it is possible to charge the secondary battery pack part and the charging power supply part without electrical contact, no external electrical terminal is provided. Electrical equipment with a built-in secondary battery can be realized. In addition to the embodiments described above, the present invention can be widely applied to charging devices with built-in secondary batteries, and can be particularly waterproof or chemically resistant, so it can be used in harsh environments.
For example, it can be used in environments where there is a lot of moisture, dust, or corrosive gas, and has the advantage of extending its life.

【図面の簡単な説明】[Brief explanation of drawings]

第1図は本発明による二次電池の充電方法、これに使用
する二次電池/ぐツクおよび充電用電源の一実施例を示
す回路構成図、第2図は本発明による二次を池zfツク
を電気機器に組み込んだときの一実施例を示す回路構成
図、第3図(a)は本発明の保温皿への第1の具体的実
施例を示す平面図、第3図(b)Vi第3図(&)のA
 −A’線断面図、第4図は第3図に示す保温皿の充電
方法の一例を示す断面図、第5図は本発明の保温皿への
第2の具体的実施例を示す断面図、第6図は第5図に示
す保温皿の充電方法の一例を示す断面図、第7図(、)
は本発明の携帯用発光体への第3の具体的実施例を示す
断面図、第7図(b)は同じく裏面図、第8図は従来技
術による二次電池の充電方法を示す回路構成図、第9図
(a) * (b)は従来技術による二次電池の一般的
使用例を示す回路構成図である。 1・・・二次電池パック、2・・・二次電池、3・・・
充電回路、4.9・・・線輪、5,8・・・コア、7・
・・充電用電源、12・・・端子。 出願人代理人  弁理士 鈴 江 武 彦・二次電池パ
ック 第 図 第 図 第 図 第 ズ 2つ 第 図 (b)
FIG. 1 is a circuit configuration diagram showing an embodiment of a secondary battery charging method according to the present invention, a secondary battery/gun used in the method, and a charging power source, and FIG. 2 is a circuit diagram showing an embodiment of a secondary battery charging method according to the present invention. FIG. 3(a) is a circuit diagram showing an embodiment of the heat-retaining plate according to the present invention; FIG. Vi Figure 3 (&) A
-A' line sectional view, FIG. 4 is a sectional view showing an example of a charging method for the heat-insulating dish shown in FIG. 3, and FIG. 5 is a sectional view showing a second specific embodiment of the heat-insulating dish of the present invention. , FIG. 6 is a sectional view showing an example of the charging method for the heat-retaining dish shown in FIG. 5, and FIG. 7 (,)
is a sectional view showing a third specific embodiment of the portable light emitting body of the present invention, FIG. 7(b) is a back view, and FIG. 8 is a circuit configuration showing a method of charging a secondary battery according to the prior art. 9(a) and 9(b) are circuit configuration diagrams showing general usage examples of secondary batteries according to the prior art. 1... Secondary battery pack, 2... Secondary battery, 3...
Charging circuit, 4.9... wire ring, 5, 8... core, 7.
... Charging power supply, 12... terminal. Applicant's representative Patent attorney Takehiko Suzue Rechargeable battery pack Figure 2 Figure 2 (b)

Claims (3)

【特許請求の範囲】[Claims] (1)二次電池と、該二次電池に出力端が接続され交流
を入力とする二次電池用充電回路と、該二次電池用充電
回路の入力端に接続された線輪とを内蔵した二次電池パ
ックを、前記線輪と電磁的に結合できる別の線輪を内蔵
した充電用電源に近接させて二次電池パックの線輪を充
電用電源の線輪に電磁的に結合することにより、電線を
接続することなしに、あるいは物理的に接触することな
しに前記二次電池パック内の二次電池を充電することを
特徴とする二次電池の充電方法。
(1) Built-in a secondary battery, a charging circuit for the secondary battery whose output end is connected to the secondary battery and inputs alternating current, and a wire connected to the input end of the charging circuit for the secondary battery. The secondary battery pack is brought close to a charging power source that has a built-in wire that can be electromagnetically coupled to the wire, and the wire of the secondary battery pack is electromagnetically coupled to the wire of the charging power source. A method for charging a secondary battery, characterized in that the secondary battery in the secondary battery pack is charged without connecting an electric wire or physically contacting the secondary battery.
(2)二次電池と、該二次電池に出力端が接続され交流
を入力とする二次電池用充電回路と、該二次電池用充電
回路の入力端に接続され外部の電磁界の変化により交流
電圧を発生する線輪とを内蔵することを特徴とする二次
電池パック。
(2) A secondary battery, a secondary battery charging circuit whose output terminal is connected to the secondary battery and which inputs alternating current, and a change in external electromagnetic field which is connected to the input terminal of the secondary battery charging circuit. A secondary battery pack characterized by having a built-in wire ring that generates an alternating current voltage.
(3)交流を流すことにより外部に変化する電磁界を形
成するための線輪を内蔵し、請求項2記載の二次電池パ
ックあるいは請求項2記載の二次電池パックを内蔵した
電気機器を近接させることにより、前記線輪と前記二次
電池パックに内蔵する線輪とを電磁的に結合させること
を特徴とする充電用電源。
(3) A secondary battery pack according to claim 2 or an electric device incorporating a secondary battery pack according to claim 2, which has a built-in coil for forming an electromagnetic field that changes externally by flowing alternating current. A charging power supply characterized in that the wire and the wire built in the secondary battery pack are electromagnetically coupled by bringing them close to each other.
JP63278599A 1988-11-04 1988-11-04 Charging method for secondary cell, secondary cell pack, and power source for charging Pending JPH02126574A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63278599A JPH02126574A (en) 1988-11-04 1988-11-04 Charging method for secondary cell, secondary cell pack, and power source for charging

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63278599A JPH02126574A (en) 1988-11-04 1988-11-04 Charging method for secondary cell, secondary cell pack, and power source for charging

Publications (1)

Publication Number Publication Date
JPH02126574A true JPH02126574A (en) 1990-05-15

Family

ID=17599512

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63278599A Pending JPH02126574A (en) 1988-11-04 1988-11-04 Charging method for secondary cell, secondary cell pack, and power source for charging

Country Status (1)

Country Link
JP (1) JPH02126574A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012081384A1 (en) * 2010-12-13 2012-06-21 Udトラックス株式会社 Power storage cell and power storage apparatus
JP2014017920A (en) * 2012-07-06 2014-01-30 Sharp Corp Battery pack
JP2014017921A (en) * 2012-07-06 2014-01-30 Sharp Corp Charger, control method of charger, and charging system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012081384A1 (en) * 2010-12-13 2012-06-21 Udトラックス株式会社 Power storage cell and power storage apparatus
JP2012130094A (en) * 2010-12-13 2012-07-05 Ud Trucks Corp Storage cell and power storage
US9208957B2 (en) 2010-12-13 2015-12-08 Ud Trucks Corporation Electric storage cell and electric storage apparatus
JP2014017920A (en) * 2012-07-06 2014-01-30 Sharp Corp Battery pack
JP2014017921A (en) * 2012-07-06 2014-01-30 Sharp Corp Charger, control method of charger, and charging system

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