JPH11339743A - Charger - Google Patents
ChargerInfo
- Publication number
- JPH11339743A JPH11339743A JP10146759A JP14675998A JPH11339743A JP H11339743 A JPH11339743 A JP H11339743A JP 10146759 A JP10146759 A JP 10146759A JP 14675998 A JP14675998 A JP 14675998A JP H11339743 A JPH11339743 A JP H11339743A
- Authority
- JP
- Japan
- Prior art keywords
- battery
- electrode
- electrode contact
- charger
- charging terminal
- 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.)
- Granted
Links
Classifications
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Secondary Cells (AREA)
- Battery Mounting, Suspending (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、二次電池を脱着自
在に装着して充電する充電器に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a charger for removably mounting and charging a secondary battery.
【０００２】[0002]
【従来の技術】充電器は、二次電池の充電状態を検出し
ながら充電する。二次電池が満充電されたときに、正確
に充電を停止することが大切である。満充電された後
に、さらに継続して充電すると二次電池は過充電になっ
て、電池性能が著しく低下する。反対に、満充電になる
前に充電を停止すると、二次電池に充分に充電されず、
実際に使用できる時間が短くなって、実質的な放電容量
を減少させる。2. Description of the Related Art A charger is charged while detecting the state of charge of a secondary battery. It is important to stop charging correctly when the secondary battery is fully charged. If the secondary battery is continuously charged after being fully charged, the secondary battery is overcharged, and the battery performance is significantly reduced. Conversely, if charging is stopped before the battery is fully charged, the secondary battery will not be fully charged,
The actual usable time is shortened, and the actual discharge capacity is reduced.
【０００３】二次電池の充電状態を検出するために、充
電回路は二次電池の電圧を検出する。電池電圧は充電が
進行するにしたがって高くなる。さらに、ニッケル−カ
ドミウム電池やニッケル−水素電池は、満充電になると
電池電圧がピーク電圧まで上昇した後に低下する特性を
示す。したがって、ピーク電圧からの低下、すなわち、
電圧のΔＶ低下を検出して、満充電を判定できる。しか
しながら、ΔＶ低下は極めて小さいので、電池電圧を高
い精度で検出することが大切である。In order to detect the state of charge of a secondary battery, a charging circuit detects the voltage of the secondary battery. The battery voltage increases as charging progresses. Furthermore, a nickel-cadmium battery and a nickel-hydrogen battery exhibit a characteristic that when fully charged, the battery voltage increases to a peak voltage and then decreases. Therefore, the decrease from the peak voltage, that is,
A full charge can be determined by detecting a decrease in the voltage ΔV. However, since the decrease in ΔV is extremely small, it is important to detect the battery voltage with high accuracy.
【０００４】さらに、リチウムイオン二次電池は、さら
に高い精度で電池電圧を検出する必要がある。それは、
満充電する電池電圧のわずかな誤差が、電池性能を大き
く左右するからである。現在市販されているリチウムイ
オン二次電池は、４．２Ｖを満充電と判定するものと、
４．１Ｖを満充電と判定するものがある。そして、これ
等の電池は、満充電と判定する電圧が０．１Ｖ高くなる
と、電池性能を著しく低下させ、反対に０．１Ｖ低くな
ると、実質的な充電容量を相当に小さくしてしまう。Further, a lithium ion secondary battery needs to detect the battery voltage with higher accuracy. that is,
This is because a slight error in the fully charged battery voltage greatly affects battery performance. Currently commercially available lithium ion secondary batteries determine that 4.2V is fully charged,
In some cases, 4.1 V is determined to be fully charged. In these batteries, when the voltage determined to be fully charged is increased by 0.1 V, the battery performance is significantly reduced. On the contrary, when the voltage is decreased by 0.1 V, the substantial charge capacity is considerably reduced.
【０００５】[0005]
【発明が解決しようとする課題】したがって、充電器
は、充電している電池の電圧を極めて高い精度で検出す
ることが大切である。電池電圧を正確に検出するには、
充電端子を電池の＋−の電極に、極めて少ない接触抵抗
で接続することが大切である。しかしながら、このこと
は、実際には相当に難しい。とくに、二次電池を脱着で
きるように装着して充電する充電器は、二次電池の＋−
の電極に、半田付けする等の構造で、充電端子を電気接
続することができないので、長期間にわたって低い電気
抵抗で電池の電極に接続するが難しい。Therefore, it is important for the charger to detect the voltage of the battery being charged with extremely high accuracy. To accurately detect battery voltage,
It is important to connect the charging terminal to the positive and negative electrodes of the battery with very low contact resistance. However, this is actually quite difficult. In particular, the charger that attaches and recharges a secondary battery so that it can be attached and detached is a +-
It is difficult to electrically connect the charging terminal to the battery electrode with a low electric resistance over a long period of time because of the structure such as soldering to the electrode.
【０００６】充電端子を低抵抗な状態で電池の電極に接
続するために、充電端子の表面を金メッキした充電器は
市販されている。金メッキされた充電端子は、表面が酸
化され難く、酸化膜に起因する接触抵抗の増加を防止で
きる。ただ、金メッキは極めて高価なために、経済的な
理由で膜厚が薄く制限される。薄膜の金メッキは、損傷
しやすくて、摩耗しやすい。このため、長期間にわたっ
て、電池の電極に確実に電気接続させるのは、実際には
難しい。電極表面のメッキに多く使用されるニッケルメ
ッキは、金メッキに比較すると低コストであるために、
厚膜にメッキできる。したがって、金メッキに比較して
耐久性を向上できる。ただ、ニッケルメッキは、金メッ
キに比較すると表面が酸化されやすく、金メッキに比較
して安定性が低下する。このため、ニッケルメッキされ
た充電端子も、長期間にわたって、電池の電極に低抵抗
な状態で安定して電気接続させるのは極めて難しい。[0006] In order to connect the charging terminal to the battery electrode in a state of low resistance, a charger having a gold-plated surface of the charging terminal is commercially available. The surface of the gold-plated charging terminal is hardly oxidized, and the contact resistance due to the oxide film can be prevented from increasing. However, since gold plating is extremely expensive, its thickness is limited to a thin film for economic reasons. Gold plating on thin films is susceptible to damage and wear. For this reason, it is actually difficult to reliably make an electrical connection to the battery electrode over a long period of time. Nickel plating, which is often used for plating the electrode surface, is less expensive than gold plating.
Can be plated on thick films. Therefore, durability can be improved as compared with gold plating. However, the surface of nickel plating is more easily oxidized than gold plating, and the stability is lower than that of gold plating. Therefore, it is extremely difficult to stably and electrically connect the nickel-plated charging terminal to the battery electrode in a low resistance state for a long period of time.
【０００７】本発明は、このような実状を考慮して開発
されたもので、本発明の重要な目的は、理想的な状態で
充電端子を電池に電気接続できるにもかかわらず、製造
コストを低減できる充電器をを提供することにある。[0007] The present invention has been developed in consideration of such circumstances, and an important object of the present invention is to reduce the manufacturing cost despite the fact that the charging terminal can be electrically connected to the battery in an ideal state. It is to provide a charger that can be reduced.
【０００８】[0008]
【課題を解決するための手段】本発明の請求項１の充電
器は、二次電池４を脱着自在に装着する装着部２を有す
るケース１と、ケース１に内蔵された充電回路と、この
充電回路に接続されて、ケース１の装着部２に装着され
る二次電池４の＋−の電極に接触する＋−の充電端子３
とを備える。電池の＋極に接触する＋充電端子３Ａは、
電極に接触される電極接点部３ａと、プリント基板７に
半田付けして固定される半田固定部３ｂとを備える。電
極接点部３ａは表面を金メッキしており、半田固定部３
ｂは表面をニッケルメッキしている。According to a first aspect of the present invention, there is provided a battery charger comprising: a case having a mounting portion for removably mounting a secondary battery; a charging circuit built in the case; A +-charging terminal 3 connected to a charging circuit and in contact with a +-electrode of a secondary battery 4 mounted on the mounting portion 2 of the case 1.
And The + charging terminal 3A that contacts the positive electrode of the battery is
An electrode contact portion 3a to be in contact with the electrode and a solder fixing portion 3b to be soldered and fixed to the printed circuit board 7 are provided. The electrode contact portion 3a has a gold-plated surface, and the solder fixing portion 3a
b has a nickel-plated surface.
【０００９】さらに、本発明の請求項２の充電器は、−
充電端子３Ｂを、弾性変形して電池の−極に電気接続
し、＋充電端子３Ａを弾性変形しないで電池の＋極に電
気接続する。−充電端子３Ｂは、弾性変形して電池の−
極に接続されるように、弾性板や弾性線で製作される。Further, the battery charger according to the second aspect of the present invention comprises:
The charging terminal 3B is elastically deformed and electrically connected to the negative electrode of the battery, and the positive charging terminal 3A is electrically connected to the positive electrode of the battery without being elastically deformed. -The charging terminal 3B is elastically deformed and the battery-
It is made of an elastic plate or an elastic wire so as to be connected to the pole.
【００１０】本発明の請求項３の充電器は、ケース１の
装着部２に、単３電池と単４電池を切り換えて装着する
切換片９を設けている。切換片９は回転できるようにケ
ース１に装着している。＋充電端子３Ａは、電極接点部
３ａを切換片９に固定して、半田固定部３ｂをプリント
基板７に固定している。切換片９を回転させると、切換
片９の電極接点部３ａは、半田固定部３ｂの表面を摺動
し、半田固定部３ｂに電気接続される。In the battery charger according to a third aspect of the present invention, the mounting portion 2 of the case 1 is provided with a switching piece 9 for switching between AA batteries and AAA batteries. The switching piece 9 is mounted on the case 1 so as to be rotatable. The + charging terminal 3A fixes the electrode contact portion 3a to the switching piece 9 and fixes the solder fixing portion 3b to the printed circuit board 7. When the switching piece 9 is rotated, the electrode contact portion 3a of the switching piece 9 slides on the surface of the solder fixing portion 3b and is electrically connected to the solder fixing portion 3b.
【００１１】[0011]
【発明の実施の形態】以下、本発明の実施例を図面に基
づいて説明する。ただし、以下に示す実施例は、本発明
の技術思想を具体化するための充電器を例示するもので
あって、本発明は充電器を以下のものに特定しない。Embodiments of the present invention will be described below with reference to the drawings. However, the embodiments described below exemplify a charger for embodying the technical idea of the present invention, and the present invention does not limit the charger to the following.
【００１２】さらに、この明細書は、特許請求の範囲を
理解しやすいように、実施例に示される部材に対応する
番号を、「特許請求の範囲の欄」、および「課題を解決
するための手段の欄」に示される部材に付記している。
ただ、特許請求の範囲に示される部材を、実施例の部材
に特定するものでは決してない。Further, in this specification, in order to make it easier to understand the claims, the numbers corresponding to the members shown in the embodiments will be referred to as "claims" and "claims". In the column of “means”.
However, the members described in the claims are not limited to the members of the embodiments.
【００１３】図１ないし図５に示す充電器は、ケース１
と、このケース１に内蔵された充電回路と、充電回路に
接続されて、ケース１の装着部２に装着される二次電池
４の＋−の電極に接触する＋−の充電端子３とを備え
る。The charger shown in FIG. 1 to FIG.
And a charging circuit built in the case 1 and a +-charging terminal 3 connected to the charging circuit and in contact with a +-electrode of the secondary battery 4 mounted on the mounting portion 2 of the case 1. Prepare.
【００１４】ケース１は、図１と図６に示すように、上
面に開口して、二次電池４を脱着自在に装着する装着部
２を設けている。図のケース１は、装着部２の形状を、
４列に並べて二次電池４を装着できるようにしている。
装着部２は、二次電池４を装着した状態で、上面の開口
部を閉塞する開閉蓋５を設けている。開閉蓋５は、図６
において右端部を、蝶番を介してケース１に開閉できる
ように連結している。As shown in FIGS. 1 and 6, the case 1 is provided with a mounting portion 2 which is opened on the upper surface and on which a secondary battery 4 is removably mounted. In the case 1 shown in the figure, the shape of the mounting portion 2 is
The secondary batteries 4 can be mounted in four rows.
The mounting section 2 is provided with an opening / closing lid 5 that closes an opening on the upper surface when the secondary battery 4 is mounted. The opening / closing lid 5 is shown in FIG.
Is connected to the case 1 via a hinge so as to be able to open and close.
【００１５】この図の充電器は、開閉蓋５を閉じたこと
を検出するリミットスイッチ６を備える。リミットスイ
ッチ６は、開閉蓋５をケース１に連結する蝶番の近傍に
内蔵される。リミットスイッチ６は、充電回路に接続さ
れて、開閉蓋５を閉じたことを検出して、装着部２に装
着された二次電池４を充電する。開閉蓋５を開いた状態
では、二次電池４を充電しない。The charger shown in FIG. 1 includes a limit switch 6 for detecting that the open / close lid 5 is closed. The limit switch 6 is built in the vicinity of a hinge connecting the opening / closing lid 5 to the case 1. The limit switch 6 is connected to the charging circuit, detects that the open / close lid 5 is closed, and charges the secondary battery 4 mounted on the mounting section 2. When the cover 5 is open, the secondary battery 4 is not charged.
【００１６】さらに、ケース１には、図４と図５に示す
ように、プリント基板７を内蔵している。プリント基板
７は、ケース１の底部に水平に固定される。このプリン
ト基板７には、二次電池４を充電するための充電回路を
構成する部品を実装している。さらに、ケース１は、底
面に、電源プラグ８を、起こしたり折り畳んだりできる
ように装着している。電源プラグ８は、充電回路に接続
されており、充電回路は電源プラグ８から入力される商
用電源を、二次電池４を充電できる電圧と電流に制御し
て出力する。Further, the printed circuit board 7 is built in the case 1 as shown in FIGS. The printed circuit board 7 is fixed horizontally to the bottom of the case 1. On the printed circuit board 7, components constituting a charging circuit for charging the secondary battery 4 are mounted. Further, the case 1 has a power plug 8 mounted on the bottom surface so that the power plug 8 can be raised and folded. The power plug 8 is connected to a charging circuit, and the charging circuit controls the commercial power input from the power plug 8 to a voltage and a current that can charge the secondary battery 4 and outputs the same.
【００１７】図のケース１は、装着部２に、単３電池と
単４電池の両方を装着できる構造としている。単３電池
と単４電池は全長が異なるので、これ等を切り換えする
ために、装着部２の＋側に切換片９を設けている。切換
片９は、回転できるようにケース１に装着される。切換
片９が、図４に示す位置に回転されると、装着部２には
単３電池が装着される。切換片９を図５に示す位置に回
転させると、装着部２には単４電池が装着される。The case 1 shown in the drawing has a structure in which both AA batteries and AAA batteries can be mounted on the mounting portion 2. Since the AA batteries and the AAA batteries have different overall lengths, a switching piece 9 is provided on the + side of the mounting portion 2 to switch between them. The switching piece 9 is mounted on the case 1 so as to be rotatable. When the switching piece 9 is rotated to the position shown in FIG. 4, an AA battery is mounted on the mounting section 2. When the switching piece 9 is rotated to the position shown in FIG.
【００１８】図の切換片９は、９０度回転させて、単３
電池と単４電池とを切り換える。切換片９は、図４に示
すように、垂直に立てる姿勢で単３電池を装着し、図５
に示すように、水平に倒した状態で、単４電池を装着す
る。切換片９は、立てる姿勢において、装着部２の全長
を長くして単３電池を装着し、水平に倒した姿勢では、
装着部２の全長を短くして、単４電池を装着する。The switching piece 9 shown in FIG.
Switch between batteries and AAA batteries. As shown in FIG. 4, the switching piece 9 is mounted with an AA battery in an upright posture.
As shown in the figure, the AAA battery is mounted in a state where the battery is horizontally laid. When the switching piece 9 is in the upright position, the AA battery is mounted by extending the entire length of the mounting portion 2,
The total length of the mounting portion 2 is shortened, and a AAA battery is mounted.
【００１９】図１の充電器は、切換片９を左右に２分割
して、それぞれの切換片９を独立して回転できるように
している。この充電器は、図６に示すように、２本の二
次電池４を１組として、単３電池と単４電池を充電でき
る。In the charger shown in FIG. 1, the switching piece 9 is divided into two parts, left and right, so that each switching piece 9 can be rotated independently. As shown in FIG. 6, this charger can charge AA batteries and AAA batteries using two rechargeable batteries 4 as one set.
【００２０】プリント基板７は、装着部２に表出するよ
うに、＋−の充電端子３を設けている。＋−の充電端子
３は、装着部２に装着される電池の＋−の電極に接続で
きる位置に設けられる。充電端子３は、プリント基板７
の充電回路に接続されて、電池を充電回路に接続する。
−充電端子３Ｂは、電池の−極に接続され、＋充電端子
３Ａは、電池の＋極に接続される。−充電端子３Ｂは、
下端をプリント基板７に固定して、単３電池と単４電池
の両方の−極に電気接続される。The printed circuit board 7 is provided with + and-charging terminals 3 so as to be exposed on the mounting section 2. The positive and negative charging terminals 3 are provided at positions that can be connected to the positive and negative electrodes of the battery mounted on the mounting unit 2. The charging terminal 3 is a printed circuit board 7
And the battery is connected to the charging circuit.
The negative charging terminal 3B is connected to the negative electrode of the battery, and the positive charging terminal 3A is connected to the positive electrode of the battery. The charging terminal 3B
The lower end is fixed to the printed circuit board 7, and is electrically connected to both negative electrodes of the AA battery and the AAA battery.
【００２１】−充電端子３Ｂは、図４と図５に示すよう
に、電池の−極に接続されるときに弾性変形する。した
がって、−充電端子３Ｂは、弾性変形できる金属板、ま
たは、金属線で製作される。単３電池と単４電池は、太
さが多少は異なるので、図の−充電端子３Ｂは、電池の
−極に接触する部分を山形に折曲する形状として、単３
電池と単４電池の両方に接続させるようにしている。The charging terminal 3B is elastically deformed when connected to the negative electrode of the battery, as shown in FIGS. Therefore, the negative charging terminal 3B is made of an elastically deformable metal plate or metal wire. Since the size of the AA battery and the AAA battery is slightly different from each other, the -charging terminal 3B in the figure has a shape in which the portion in contact with the-pole of the battery is bent in a mountain shape, and
It connects to both batteries and AAA batteries.
【００２２】−充電端子３Ｂは、電池を装着するときに
弾性変形しながら、電池の−極の表面に弾性的に押圧さ
れる状態で摺動して接触される。電池の−極に押圧され
て摺動する−充電端子３Ｂは、電池を脱着するときに、
表面の酸化膜が除去される。−充電端子３Ｂは、低抵抗
な状態で電池の−極に接続するために、表面をニッケル
メッキしている。−充電端子３Ｂは、全表面をニッケル
メッキして、上端部を電池の−極に接触させ、下端部を
プリント基板７に半田付けして固定している。The charging terminal 3B is slid in contact with the negative electrode surface of the battery while being elastically deformed when the battery is mounted. The charging terminal 3B, which is pressed by the pole of the battery and slides,
The oxide film on the surface is removed. The surface of the charging terminal 3B is nickel-plated in order to connect to the negative electrode of the battery in a low resistance state. The charging terminal 3B is nickel-plated on the entire surface, the upper end thereof is in contact with the negative electrode of the battery, and the lower end is fixed to the printed circuit board 7 by soldering.
【００２３】＋充電端子３Ａは、電池の＋極に接続され
る電極接点部３ａと、プリント基板７に固定される半田
固定部３ｂとからなる。電極接点部３ａは、切換片９に
固定されて、電池の＋極に接続される。電極接点部３ａ
は、切換片９を回転させて、単３電池と単４電池とに切
り換えて接続できるように、切換片９の回転方向に延長
されて、切換片９の外周面に固定される。図の電極接点
部３ａは、金属板を溝形に折曲して、切換片９の外周に
固定される。さらに、電極接点部３ａは、両端を内側に
折曲し、折曲片３ｃを切換片９に挿入して、切換片９に
装着される。電極接点部３ａは、−充電端子３Ｂのよう
に弾性変形して電池の電極に押圧されず、切換片９に動
かないように固定されて、＋電極に接触する。The positive charging terminal 3A comprises an electrode contact 3a connected to the positive electrode of the battery and a solder fixing portion 3b fixed to the printed circuit board 7. The electrode contact portion 3a is fixed to the switching piece 9 and connected to the positive electrode of the battery. Electrode contact 3a
Is extended in the rotating direction of the switching piece 9 and fixed to the outer peripheral surface of the switching piece 9 so that the switching piece 9 can be rotated to switch and connect between the AA battery and the AAA battery. The electrode contact portion 3a in the figure is fixed to the outer periphery of the switching piece 9 by bending a metal plate into a groove shape. Further, the electrode contact portion 3a is bent at both ends inward, and the bent piece 3c is inserted into the switching piece 9 and mounted on the switching piece 9. The electrode contact portion 3a is elastically deformed like the negative charging terminal 3B, is not pressed by the battery electrode, is fixed to the switching piece 9 so as not to move, and contacts the positive electrode.
【００２４】電極接点部３ａは、全体の形状を溝形に形
成して、切換片９を垂直から水平に回動させた状態で、
電池の＋電極と、半田固定部３ｂに接触する。電極接点
部３ａは、表面の全面を金メッキしている。＋電極に対
する接触抵抗を小さくするためである。電極接点部３ａ
は、下地処理をして表面を金メッキすることもできる
が、好ましくは、ニッケルメッキをして、ニッケルメッ
キの上に金メッキを積層する。ニッケルメッキと金メッ
キを２層にメッキした電極接点部３ａは、仮に金メッキ
が摩耗し、あるいは破損しても、ニッケルメッキが表出
して、＋電極に接続できる。ニッケルメッキは、金メッ
キに比較して酸化膜を作りやすいが、電極接点部３ａの
金属表面が直接に表出するのに比較して、接触抵抗を小
さくできる。The electrode contact portion 3a is formed in a groove shape as a whole, and the switching piece 9 is rotated from vertical to horizontal.
The positive electrode of the battery contacts the solder fixing part 3b. The entire surface of the electrode contact portion 3a is gold-plated. This is for reducing the contact resistance to the + electrode. Electrode contact 3a
Can be subjected to a base treatment and the surface can be gold-plated, but preferably, nickel plating is performed, and gold plating is laminated on the nickel plating. The electrode contact portion 3a in which nickel plating and gold plating are plated in two layers can be connected to the + electrode by exposing the nickel plating even if the gold plating is worn or damaged. Nickel plating is easier to form an oxide film than gold plating, but can reduce the contact resistance as compared to the case where the metal surface of the electrode contact portion 3a is directly exposed.
【００２５】半田固定部３ｂは、電極接点部３ａの下方
に位置して、プリント基板７に半田付けして固定されて
いる。半田固定部３ｂは、弾性変形できる金属板を所定
の幅に切断して、その表面の全面をニッケルメッキした
ものである。半田固定部３ｂは、電極接点部３ａの下面
に弾性的に押圧されるように、プリント基板７から突出
する部分をＵ曲して、折曲片３ｄとしている。折曲片３
ｄは、電極接点部３ａの下面に弾性的に押圧されて電気
的に接続される。切換片９が回転されるとき、電極接点
部３ａは折曲片３ｄの表面を摺動する。切換片９を回動
させるときに、電極接点部３ａは半田固定部３ｂの表面
を摺動するが、このときの金メッキの摩耗は問題になら
ない。それは、切換片９を回転させて単３電池と単４電
池とを切り換える頻度が極めて少ないからである。互い
に押圧される状態で電気接続される、電極接点部３ａと
半田固定部３ｂは、より低抵抗な状態で接続するため
に、むしろ多少は摺動させて、表面の酸化膜や汚れを除
去するのがよい。したがって、切換片９を回転させるこ
とにより、電極接点部３ａと半田固定部３ｂとの接触状
態を向上させる。The solder fixing portion 3b is located below the electrode contact portion 3a and is fixed to the printed circuit board 7 by soldering. The solder fixing portion 3b is obtained by cutting a metal plate that can be elastically deformed to a predetermined width, and plating the entire surface of the metal plate with nickel. The solder fixing portion 3b is formed by bending a portion protruding from the printed circuit board 7 into a bent piece 3d so as to be elastically pressed against the lower surface of the electrode contact portion 3a. Bent piece 3
d is elastically pressed to the lower surface of the electrode contact portion 3a and is electrically connected. When the switching piece 9 is rotated, the electrode contact portion 3a slides on the surface of the bent piece 3d. When the switching piece 9 is rotated, the electrode contact portion 3a slides on the surface of the solder fixing portion 3b, but wear of the gold plating at this time does not matter. This is because the frequency of switching between the AA battery and the AAA battery by rotating the switching piece 9 is extremely low. The electrode contact portion 3a and the solder fixing portion 3b, which are electrically connected to each other in a pressed state, are somewhat slid to remove the oxide film and dirt on the surface in order to connect in a lower resistance state. Is good. Therefore, by rotating the switching piece 9, the contact state between the electrode contact portion 3a and the solder fixing portion 3b is improved.
【００２６】以上の構造の充電器は、単３電池と単４電
池の両方を充電できると共に、切換片９を回転させて、
電極接点部３ａを半田固定部３ｂに低抵抗な状態で接続
できる。さらに、この構造の充電器は、＋充電端子３Ａ
を、互いに別々に分離して製作される電極接点部３ａと
半田固定部３ｂとで構成し、電極接点部３ａを金メッキ
し、半田固定部３ｂをニッケルメッキするので、電極接
点部３ａを能率よく金メッキできる。それは、電極接点
部３ａの全面を金メッキできるからである。The charger having the above structure can charge both AA batteries and AAA batteries, and rotates the switching piece 9 to
The electrode contact portion 3a can be connected to the solder fixing portion 3b with a low resistance. Further, the charger having this structure has a positive charging terminal 3A.
Is composed of an electrode contact portion 3a and a solder fixing portion 3b which are separately manufactured from each other, and the electrode contact portion 3a is gold-plated and the solder fixing portion 3b is nickel-plated. Gold plating is available. This is because the entire surface of the electrode contact portion 3a can be plated with gold.
【００２７】ただ、本発明は、単３電池と単４電池に切
り換えて、両方の二次電池４を充電できる充電器に特定
しない。単一タイプの二次電池４のみを充電する構造と
することもできる。単一タイプの二次電池４を充電する
充電器は、ひとつの＋充電端子３Ａを、電極接点部３ａ
と半田固定部３ｂに分離する。この＋充電端子３Ａは、
図７に示すように、上端部を電極接点部３ａとして、下
部を半田固定部３ｂとする。この＋充電端子３Ａは、＋
電極に接触する電極接点部３ａの表面を金メッキし、プ
リント基板７に半田付けして固定される半田固定部３ｂ
の表面をニッケルメッキする。この＋充電端子３Ａは、
最初に全面にニッケルメッキを施し、その後に、上部に
電極接点部３ａとなる部分を金メッキして製造する。However, the present invention does not specify a charger capable of charging both secondary batteries 4 by switching between AA batteries and AAA batteries. A structure in which only a single type of secondary battery 4 is charged may be employed. A charger for charging a single type of secondary battery 4 has one positive charging terminal 3A and an electrode contact 3a.
And the solder fixing portion 3b. This + charging terminal 3A is
As shown in FIG. 7, the upper end portion is an electrode contact portion 3a, and the lower portion is a solder fixing portion 3b. The + charging terminal 3A is
The surface of the electrode contact portion 3a that contacts the electrode is gold-plated, and the solder fixing portion 3b that is fixed by soldering to the printed circuit board 7
Is nickel-plated. This + charging terminal 3A is
First, nickel plating is applied to the entire surface, and thereafter, a portion to be the electrode contact portion 3a is gold-plated on the upper portion to manufacture.
【００２８】[0028]
【発明の効果】本発明の充電器は、理想的な状態で充電
端子を電池に電気接続できるにもかかわらず、製造コス
トを低減できる特長がある。それは、本発明の充電器
が、ケースの装着部に脱着自在に装着される二次電池の
＋−の電極に接触する＋−の充電端子を備えており、二
次電池の＋極に接触する＋充電端子が、電極に接触され
る電極接点部と、プリント基板に半田付けして固定され
る半田固定部とを備え、さらに、電極接点部は表面を金
メッキしており、半田固定部は表面をニッケルメッキし
ているからである。本発明の充電器は、電池の電極に押
圧されながら摺動されることの少ない＋充電端子の電極
接点部の表面に金メッキをしている。したがって、金メ
ッキの膜厚を薄くしても、損傷や摩耗し難く、長期間に
わたって電池の電極に確実に電気接続させることができ
る。金メッキされた充電端子は、表面が酸化され難く、
酸化膜に起因する接触抵抗の増加を防止できる。したが
って、本発明の充電器は、充電端子を低抵抗な状態で電
池に電気接続して、充電している電池の電圧を極めて高
い精度で検出できる特長がある。しかも、高価な金メッ
キを薄膜にできるので、製造コストを低減できる特長が
ある。The charger of the present invention has an advantage that the manufacturing cost can be reduced although the charging terminal can be electrically connected to the battery in an ideal state. That is, the charger of the present invention is provided with a +-charging terminal that contacts a +-electrode of a secondary battery that is detachably attached to a mounting portion of a case, and contacts a + electrode of the secondary battery. The + charging terminal has an electrode contact portion to be brought into contact with the electrode and a solder fixing portion to be soldered and fixed to a printed circuit board. Further, the electrode contact portion has a gold-plated surface, and the solder fixing portion has a front surface. Is nickel-plated. In the battery charger of the present invention, the surface of the electrode contact portion of the + charging terminal, which is hardly slid while being pressed by the electrode of the battery, is plated with gold. Therefore, even if the film thickness of the gold plating is reduced, it is hard to be damaged or worn, and it can be surely electrically connected to the electrode of the battery for a long period of time. Gold-plated charging terminals are hardly oxidized on the surface,
An increase in contact resistance caused by the oxide film can be prevented. Therefore, the battery charger of the present invention has a feature that the voltage of the battery being charged can be detected with extremely high accuracy by electrically connecting the charging terminal to the battery in a state of low resistance. Moreover, since expensive gold plating can be made into a thin film, there is a feature that manufacturing cost can be reduced.
【００２９】さらに、この構造の充電器は、＋充電端子
を、互いに別々に分離して製作される電極接点部と半田
固定部とで構成すると共に、電極接点部を金メッキし、
半田固定部をニッケルメッキしているので、電極接点部
を能率よく金メッキできる特長がある。それは、電極接
点部の全面を金メッキできるからである。このため、簡
単かつ低コストに充電端子を製造できる特長も備える。Further, in the battery charger having this structure, the positive charging terminal is constituted by an electrode contact portion and a solder fixing portion which are separately manufactured, and the electrode contact portion is plated with gold.
Since the solder fixing part is plated with nickel, there is a feature that the electrode contact part can be plated with gold efficiently. This is because the entire surface of the electrode contact portion can be plated with gold. For this reason, it also has a feature that the charging terminal can be manufactured easily and at low cost.
【００３０】さらに、本発明の請求項２の充電器は、−
充電端子を、弾性変形して電池の−極に電気接続し、＋
充電端子を弾性変形しないで電池の＋極に電気接続して
いる。このため、金メッキを施した＋充電端子の損傷や
摩耗を少なくし、長期間にわたって電池の電極に確実に
電気接続できると共に、弾性変形する−充電端子で装着
される電池を確実に定位置に保持できる特長がある。Further, the battery charger according to the second aspect of the present invention comprises:
The charging terminal is elastically deformed and electrically connected to the negative electrode of the battery.
The charging terminal is electrically connected to the positive electrode of the battery without elastic deformation. For this reason, the damage and wear of the gold-plated + charging terminal are reduced, the electric connection to the battery electrode can be reliably performed for a long period of time, and the battery mounted with the-charging terminal that elastically deforms is securely held in a fixed position. There are features that can be done.
【００３１】さらに、本発明の請求項３の充電器は、ケ
ースの装着部に、単３電池と単４電池を切り換えて装着
する切換片を設けているので、この切換片を切り換え
て、単３電池と単４電池の両方を充電できる特長があ
る。とくに、切換片は回転できるようにケースに装着さ
れているので、極めて簡単に切換片を切り換えて、便利
に使用できる特長がある。Further, in the battery charger according to the third aspect of the present invention, the switching portion for switching and mounting the AA battery and the AAA battery is provided in the mounting portion of the case. The feature is that both 3 batteries and AAA batteries can be charged. Particularly, since the switching piece is mounted on the case so as to be rotatable, there is a feature that the switching piece can be switched very easily and used conveniently.
【００３２】さらに、本発明の請求項３の充電器は、＋
充電端子の電極接点部を切換片に固定し、半田固定部を
プリント基板に固定しており、切換片を回転させると、
切換片の電極接点部が半田固定部の表面を摺動して、半
田固定部に電気接続されるように構成されている。この
ため、電極接点部と半田固定部は、互いに押圧される状
態で摺動して電気接続され、このとき、表面の酸化膜や
汚れが除去されて、より低抵抗な状態で接続することが
できる。すなわち、この構造の充電器は、切換片を回転
させることにより、電極接点部と半田固定部との接触状
態を向上できる特長も備える。Further, according to the third aspect of the present invention, the battery charger
The electrode contact part of the charging terminal is fixed to the switching piece, the solder fixing part is fixed to the printed board, and when the switching piece is rotated,
The electrode contact portion of the switching piece slides on the surface of the solder fixing portion and is electrically connected to the solder fixing portion. Therefore, the electrode contact portion and the solder fixing portion are slid and electrically connected to each other while being pressed against each other. At this time, the oxide film and dirt on the surface are removed, and the connection can be made with a lower resistance. it can. That is, the charger having this structure also has a feature that the contact state between the electrode contact portion and the solder fixing portion can be improved by rotating the switching piece.
【図１】本発明の実施例の充電器の開閉蓋を開けた状態
を示す平面図FIG. 1 is a plan view showing a state in which an opening / closing lid of a charger according to an embodiment of the present invention is opened.
【図２】本発明の実施例の充電器の平面図FIG. 2 is a plan view of the charger according to the embodiment of the present invention.
【図３】本発明の実施例の充電器の電源プラグを起した
状態を示す側面図FIG. 3 is a side view showing a state in which a power plug of the charger according to the embodiment of the present invention is raised.
【図４】本発明の実施例の充電器に単３電池を装着する
状態を示す縦断面図FIG. 4 is a longitudinal sectional view showing a state in which an AA battery is mounted on the charger according to the embodiment of the present invention.
【図５】本発明の実施例の充電器に単４電池を装着する
状態を示す縦断面図FIG. 5 is a longitudinal sectional view showing a state where a AAA battery is mounted on the charger according to the embodiment of the present invention.
【図６】本発明の実施例の充電器に単３電池と単４電池
を装着する状態を示す横断面図FIG. 6 is a cross-sectional view showing a state where AA batteries and AAA batteries are mounted on the charger according to the embodiment of the present invention.
【図７】本発明の他の実施例の充電器に単３電池を装着
する状態を示す縦断面図FIG. 7 is a longitudinal sectional view showing a state in which an AA battery is mounted on a charger according to another embodiment of the present invention.
１…ケース ２…装着部 ３…充電端子 ３Ａ…＋充電端子 ３Ｂ…−充電端
子 ３ａ…電極接点部 ３ｂ…半田固定部 ３ｃ…折曲片 ３ｄ…折曲片 ４…二次電池 ５…開閉蓋 ６…リミットスイッチ ７…プリント基板 ８…電源プラグ ９…切換片DESCRIPTION OF SYMBOLS 1 ... Case 2 ... Mounting part 3 ... Charging terminal 3A ... + Charging terminal 3B ...- Charging terminal 3a ... Electrode contact part 3b ... Solder fixing part 3c ... Bending piece 3d ... Bending piece 4 ... Secondary battery 5 ... Opening / closing lid 6 Limit switch 7 Printed circuit board 8 Power plug 9 Switching piece
Claims (3)
部(2)を有するケース(1)と、このケース(1)に内蔵され
た充電回路と、この充電回路に接続されて、ケース(1)
の装着部(2)に装着される二次電池(4)の＋−の電極に接
触する＋−の充電端子(3)とを備える充電器において、 電池の＋極に接触する＋充電端子(3A)は、電極に接触さ
れる電極接点部(3a)と、プリント基板(7)に半田付けし
て固定される半田固定部(3b)とを備え、 電極接点部(3a)は表面を金メッキし、半田固定部(3b)は
表面をニッケルメッキしてなることを特徴とする充電
器。A case (1) having a mounting portion (2) for detachably mounting a secondary battery (4), a charging circuit built in the case (1), and a charging circuit connected to the charging circuit. ,case 1)
And a charging terminal (3) that contacts the positive and negative electrodes of the secondary battery (4) mounted on the mounting portion (2) of the battery. 3A) includes an electrode contact portion (3a) that is in contact with the electrode, and a solder fixing portion (3b) that is soldered and fixed to the printed circuit board (7), and the surface of the electrode contact portion (3a) is gold-plated. A charger characterized in that the surface of the solder fixing part (3b) is plated with nickel.
−極に電気接続され、＋充電端子(3A)は弾性変形しない
で電池の＋極に電気接続される請求項１に記載される充
電器。2. The battery according to claim 1, wherein the charging terminal (3B) is elastically deformed and electrically connected to the negative electrode of the battery, and the positive charging terminal (3A) is electrically connected to the positive electrode of the battery without being elastically deformed. Charger described.
４電池を切り換えて装着する切換片(9)を設けており、
この切換片(9)は回転できるようにケース(1)に装着され
ており、切換片(9)に電極接点部(3a)を固定して、プリ
ント基板(7)に半田固定部(3b)を固定しており、 切換片(9)を回転させると、切換片(9)の電極接点部(3a)
が、半田固定部(3b)の表面を摺動して、電極接点部(3a)
が半田固定部(3b)に電気接続されるように構成されてな
る請求項１に記載される充電器。3. A switching part (9) for switching and mounting between AA batteries and AAA batteries is provided in a mounting part (2) of the case (1),
The switching piece (9) is rotatably mounted on the case (1), and the electrode contact part (3a) is fixed to the switching piece (9), and the solder fixing part (3b) is mounted on the printed circuit board (7). When the switching piece (9) is rotated, the electrode contact part (3a) of the switching piece (9)
However, the surface of the solder fixing part (3b) slides, and the electrode contact part (3a)
The charger according to claim 1, wherein the charger is configured to be electrically connected to the solder fixing part (3b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14675998A JP3667991B2 (en) | 1998-05-28 | 1998-05-28 | Charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14675998A JP3667991B2 (en) | 1998-05-28 | 1998-05-28 | Charger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11339743A true JPH11339743A (en) | 1999-12-10 |
| JP3667991B2 JP3667991B2 (en) | 2005-07-06 |
Family
ID=15414937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14675998A Expired - Fee Related JP3667991B2 (en) | 1998-05-28 | 1998-05-28 | Charger |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3667991B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002091633A (en) * | 2000-09-12 | 2002-03-29 | Canon Inc | Data processor; method for controlling power source and storage medium for the same |
| JP2006120531A (en) * | 2004-10-22 | 2006-05-11 | Olympus Corp | Battery device and endoscope device |
| JP2007209058A (en) * | 2006-01-31 | 2007-08-16 | Sanyo Electric Co Ltd | Charger |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4420879B2 (en) | 2005-09-29 | 2010-02-24 | 三洋電機株式会社 | Charger |
-
1998
- 1998-05-28 JP JP14675998A patent/JP3667991B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002091633A (en) * | 2000-09-12 | 2002-03-29 | Canon Inc | Data processor; method for controlling power source and storage medium for the same |
| JP2006120531A (en) * | 2004-10-22 | 2006-05-11 | Olympus Corp | Battery device and endoscope device |
| JP2007209058A (en) * | 2006-01-31 | 2007-08-16 | Sanyo Electric Co Ltd | Charger |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3667991B2 (en) | 2005-07-06 |
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