JPH065123U - Battery status detector - Google Patents
Battery status detectorInfo
- Publication number
- JPH065123U JPH065123U JP4906992U JP4906992U JPH065123U JP H065123 U JPH065123 U JP H065123U JP 4906992 U JP4906992 U JP 4906992U JP 4906992 U JP4906992 U JP 4906992U JP H065123 U JPH065123 U JP H065123U
- Authority
- JP
- Japan
- Prior art keywords
- storage battery
- short side
- detection device
- pressure
- battery
- 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.)
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Links
- 238000001514 detection method Methods 0.000 claims abstract description 27
- 238000007600 charging Methods 0.000 claims abstract description 26
- 238000006073 displacement reaction Methods 0.000 claims abstract description 8
- 230000008602 contraction Effects 0.000 claims abstract description 5
- 239000002253 acid Substances 0.000 description 8
- 239000003792 electrolyte Substances 0.000 description 7
- 239000008151 electrolyte solution Substances 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000005484 gravity Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000010280 constant potential charging Methods 0.000 description 1
- 238000010277 constant-current charging Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
Classifications
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- Y02E60/12—
Landscapes
- Secondary Cells (AREA)
Abstract
(57)【要約】
【目的】 安価で信頼性の高い蓄電池状態検出装置を提
供する。
【構成】 蓄電池短側面１０の中央部に架設された剛性
を有する梁４であって、その両端が蓄電池短側面１０の
両角部に固定されたものと、梁４と蓄電池短側面１０と
の間に挾持された圧力検出装置１とを備え、蓄電池内部
圧力の変化に伴う蓄電池短側面１０の膨張、収縮の変位
を圧力検出装置１で検出することにより充電制御を行
う。
(57) [Abstract] [Purpose] To provide an inexpensive and highly reliable storage battery state detection device. [Structure] A beam 4 having a rigidity, which is erected in the central portion of a short side surface 10 of a storage battery, and whose both ends are fixed to both corners of the short side surface 10 of the storage battery, and between the beam 4 and the short side surface 10 of the storage battery. The pressure detection device 1 is held between the two, and the pressure detection device 1 detects a displacement of expansion and contraction of the storage battery short side surface 10 due to a change in the internal pressure of the storage battery, thereby performing charging control.
Description
【０００１】[0001]
本考案は蓄電池状態検出装置に関するものである。 The present invention relates to a storage battery state detection device.
【０００２】[0002]
蓄電池には、いわゆる開放形と密閉形とがある。 Storage batteries include so-called open type and closed type.
【０００３】 鉛蓄電池の開放形は、液式鉛蓄電池とも呼ばれ、蓄電池内に流動電解液を有し ている。鉛蓄電池と言えばほとんどこの構造のものを言い、歴史が古い関係上、 蓄電池状態を検出するために種々の提案が成されている。その主なものとしては 、充電により減少する電解液に着目した液面検出法によるものや、蓄電池容量と 密接な相関関係を有する電解液比重値に着目した電解液比重検出法によるものや 、容量と相関関係を有する開路電圧に着目した開路電圧検出法や、その他種々の ものがある。The open type lead-acid battery is also called a liquid lead-acid battery, and has a flowing electrolyte in the battery. Almost all lead-acid batteries have this structure, and due to their long history, various proposals have been made to detect the battery state. The main ones are the liquid level detection method that focuses on the electrolyte solution that decreases by charging, the electrolyte specific gravity detection method that focuses on the electrolyte specific gravity value that has a close correlation with the storage battery capacity, and the capacity. There are various open circuit voltage detection methods that focus on the open circuit voltage that has a correlation with.
【０００４】 一方、密閉形は開放形よりも歴史が新しく、又、開放形ほどには簡単に状態検 出ができないことから、必ずしも充分な状態検出がなされている訳ではない。後 者について言えば、密閉形は、開放形のような蓄電池内の流動電解液がなく電解 液はマット状セパレ−タに保持されているため、電解液比重の測定や電解液液面 位の測定が事実上出来ないことによる。このため、現在わずかに採用されている 密閉形の蓄電池状態検出法としては、前述の開路電圧測定による容量判定ぐらい である。しかし、近年、密閉形蓄電池の普及には著しいものがあり、密閉形にお いても適確な状態検出による蓄電池管理の重要性が大きく成ってきている。On the other hand, the hermetically sealed type has a newer history than the open type, and the state cannot be detected as easily as the open type, so that the state is not always sufficiently detected. Speaking of the latter, the closed type does not have the flowing electrolytic solution in the storage battery like the open type, and the electrolytic solution is held in the mat-shaped separator, so the specific gravity of the electrolytic solution and the electrolyte solution level Due to the fact that measurement is virtually impossible. For this reason, the only method that is currently used to detect the state of a closed storage battery is the capacity determination based on the open circuit voltage measurement described above. However, in recent years, the sealed type storage battery has been remarkably popularized, and even in the sealed type, it is becoming more important to control the storage battery by accurately detecting the state.
【０００５】[0005]
密閉形の充電特性は新・旧の別や温度条件の差異等により大幅に変化するため 、開放形よりはるかに制御が難しい。周知のように、密閉形蓄電池は蓄電池内部 でのガス吸収反応を利用している。密閉形鉛蓄電池では、新品時には蓄電池内に 若干の遊離電解液が存在しこれがガスを吸収する陰極板を覆うため、ガス吸収反 応が低下し開放形鉛蓄電池と同様の充電特性を示す。この結果、充電終末電圧は 、正常充電であっても、２．６〜２．７Ｖ／セルの電圧に達する。ところが、経 年により遊離電解液が徐々にガスに分解されて外部に排気されセパレ−タ内電解 液が遊離電解液のないスタ−ブ状態になると、陰極板でのガス吸収効率は上昇し 、充電終末電圧は２．４〜２．５Ｖ／セルまで大幅に降下する。従って、高い充 電電圧に設定すると、使用開始初期は適正な充電ができるものの、使用期間が長 くなるにつれて過充電傾向になる。逆に、低い充電電圧に設定すると、使用初期 には不完全充電となってしまう。このような理由で、従来形の簡易な充電器で密 閉形鉛蓄電池を充電すると、極端な過充電状態となる。そのため、密閉形には専 用の充電器が使用されなければならない。 Since the charging characteristics of the sealed type change significantly depending on whether it is new or old or the temperature conditions are different, it is much more difficult to control than the open type. As is well known, a sealed storage battery utilizes a gas absorption reaction inside the storage battery. In a sealed lead acid battery, when it is new, there is a small amount of free electrolyte in the battery that covers the cathode plate that absorbs gas, so the gas absorption reaction decreases and the charging characteristics are similar to those of an open lead acid battery. As a result, the end-of-charge voltage reaches a voltage of 2.6 to 2.7 V / cell even during normal charging. However, when the free electrolyte is gradually decomposed into gas and exhausted to the outside and the electrolyte in the separator becomes a stub with no free electrolyte over time, the gas absorption efficiency at the cathode plate increases, The end-of-charge voltage drops significantly to 2.4-2.5V / cell. Therefore, if a high charging voltage is set, proper charging can be performed at the beginning of use, but overcharging tends to occur as the usage period increases. Conversely, if the charging voltage is set low, incomplete charging will occur in the early stages of use. For this reason, charging a close-packed lead-acid battery with a conventional simple charger causes an extreme overcharge. Therefore, a dedicated charger must be used for the sealed type.
【０００６】 この専用充電器としては、充電電流をガス吸収範囲まで制限したトリクル充電 式のものがよく利用されが、これには、充電器自体のコストは安いものの、充電 に長時間要するという欠点がある。そこで、急速充電を要する場合は、やむなく 定電圧・定電流充電法の充電器を用いているのが現状である。しかし、これには 、充電時間は短かくなるものの、充電終末電圧が前述の通り変化するため定電圧 設定がむずかしいという問題や、コストが高くつくと言う問題がある。[0006] As this dedicated charger, a trickle charge type one in which the charging current is limited to the gas absorption range is often used. However, the cost of the charger itself is low, but this requires a long time for charging. There is. Therefore, when rapid charging is required, it is unavoidable to use a constant-voltage / constant-current charging method charger. However, this has a problem that the constant voltage setting is difficult because the end-of-charge voltage changes as described above, although the charging time becomes short, and the cost is high.
【０００７】 この考案は上記のような課題を解決するためになされたものであり、その目的 とするところは、安価で、しかも信頼性の高い蓄電池状態検出装置を提供するこ とである。The present invention has been made to solve the above problems, and an object thereof is to provide an inexpensive and highly reliable storage battery state detection device.
【０００８】[0008]
そこで、蓄電池短側面の中央部に架設された剛性を有する梁であって、その両 端が蓄電池短側面の両角部に固定されたものと、梁と蓄電池短側面との間に挾持 された圧力検出装置とを備え、蓄電池内部圧力の変化に伴う蓄電池短側面の膨張 、収縮の変位を圧力検出装置で検出することにより充電制御を行うよう構成され た蓄電池状態検出装置により、前記課題を解決するものである。 Therefore, a rigid beam erected in the center of the short side of the storage battery, with both ends fixed to both corners of the short side of the storage battery, and the pressure clamped between the beam and the short side of the storage battery. A storage battery state detection device, which is provided with a detection device and is configured to perform charge control by detecting displacement of expansion and contraction of the storage battery short side due to a change in storage battery internal pressure, by means of a storage battery state detection device, solves the above-mentioned problems It is a thing.
【０００９】[0009]
蓄電池の充電に際し、蓄電池の新旧、周囲温度、充電電流等の相違にかかわら ず、充電終期には、電圧が急上昇するとともに、電解液の分解による発生ガスに より蓄電池内部圧力が上昇する。また、通常の充電あるいは放置状態では、密閉 形蓄電池の内圧は常に減圧状態にある。このような圧力変化に伴って、蓄電池短 側面は膨脹、収縮する。従って、この変位を検知することにより、蓄電池の状態 を知ることができる。蓄電池の一部を薄内に構成し、その変化量を検出したり、 又排気部に装着したゴム弁の変化量を測定することにより蓄電池状態を検出する こともできるが、これらいずれの方法にも、蓄電池内圧検出のため蓄電池蓋の形 状を変えたり、またゴム弁を装着している排気部の形状を特別な形状に変更する 必要がある。本考案のように、蓄電池短側面の中央部に架設された剛性を有する 梁であって、その両端が蓄電池短側面の両角部に固定されたものと、梁と密閉形 蓄電池短側面との間に挾持された圧力検出装置とを備え、蓄電池短側面の膨張、 収縮による変位を圧力検出装置で検出することにより充電制御を行うよう構成さ れた蓄電池状態検出装置とすれば、蓄電池そのものの設計変更を伴うことなく、 容易に、しかも確実に蓄電池状態が検出でき、充電制御も確実に行うことができ る。 When charging the storage battery, the voltage inside the storage battery rises sharply at the end of charging, and the internal pressure of the storage battery rises due to the gas generated by the decomposition of the electrolytic solution, regardless of the difference between the old and new storage batteries, the ambient temperature, and the charging current. In addition, the internal pressure of the sealed storage battery is always in a depressurized state during normal charging or leaving. With such a pressure change, the short side surface of the storage battery expands and contracts. Therefore, the state of the storage battery can be known by detecting this displacement. It is possible to configure a part of the storage battery to be thin and detect the amount of change, or to detect the state of the storage battery by measuring the amount of change of the rubber valve attached to the exhaust part. However, it is necessary to change the shape of the storage battery lid to detect the internal pressure of the storage battery, and to change the shape of the exhaust part where the rubber valve is installed to a special shape. As in the present invention, a rigid beam erected in the center of the short side of the storage battery, with both ends fixed to both corners of the short side of the storage battery, and between the beam and the short side of the sealed storage battery. If the storage battery state detection device is configured to perform charging control by detecting the displacement due to expansion and contraction of the short side of the storage battery, the design of the storage battery itself The storage battery state can be detected easily and reliably without any change, and charging control can be performed reliably.
【００１０】[0010]
蓄電池を急速に充電しようとする場合、どうしても大電流で充電する必要があ る。この場合、充電終末の電圧上昇も急激で、陰極板のガス吸収許容値を越える と、陰極板に吸収されないガスにより密閉形蓄電池の内圧は急上昇する。このま ま蓄積ガスを電池内に残溜させると電槽破損に至るため、密閉形鉛蓄電池には外 気圧に対し１．２〜１．３気圧になると開弁する弁部が装着されている。これと は別に、通常の充電あるいは放置状態では密閉形蓄電池の内圧は常に減圧状態と なり、０．２気圧程度まで低下することがある。蓄電池の新旧、温度、充電電流 値に関係なく、過充電状態に突入すると内圧が上昇し、９５〜１００％の充電状 態で開弁状態、つまり蓄電池構成薄肉部が最大限にふくらむことが分かっている 。蓄電池短側面が大きく内外に湾曲すると商品性が低下するため、短側面表面に は補強リブが施してあるが、面積が大きいため、減圧時には標準面レベルより３ 〜５ｍｍ内側に湾曲し、加圧時には２〜３ｍｍ外側に湾曲するのが普通である。 このように、密閉形蓄電池では０．２気圧〜１．３気圧までの範囲で内圧が変化 し、これにつれて電槽短側面も内外方向に湾曲する。このことは容易に目視確認 することができる。本考案はこの現象に着眼したものである。 If you want to quickly charge a storage battery, you must charge it with a large current. In this case, the voltage increase at the end of charging is also abrupt, and when the gas absorption allowable value of the cathode plate is exceeded, the internal pressure of the sealed storage battery rises rapidly due to the gas not absorbed by the cathode plate. If the accumulated gas remains in the battery as it is, it will damage the battery case. Therefore, the sealed lead-acid battery is equipped with a valve that opens when the atmospheric pressure is 1.2 to 1.3 atm. . Apart from this, the internal pressure of the sealed storage battery is always in a depressurized state when it is normally charged or left standing, and it may drop to about 0.2 atm. Regardless of the old or new battery, temperature, or charging current value, when the battery enters the overcharged state, the internal pressure rises and the valve is opened at 95 to 100% of the charged state, that is, the thin portion of the battery configuration expands to the maximum. ing . The storage battery has a reinforcing rib on the surface of the short side surface because the commercial side deteriorates if the short side surface bends greatly inward and outward, but due to the large area, it bends inwardly 3 to 5 mm from the standard surface level when pressure is applied and pressurizes. Sometimes it is common to curve outwards by 2-3 mm. As described above, in the sealed storage battery, the internal pressure changes in the range of 0.2 atm to 1.3 atm, and the short side surface of the battery case also curves inward and outward as the internal pressure changes. This can be easily visually confirmed. The present invention focuses on this phenomenon.
【００１１】 以下、本考案を具体的実施例により詳述する。図１は、本考案の１実施例であ る密閉形鉛蓄電池を短側両面からみた正面図であり、図２はそのＡＡ断面、図３ は同じくＢＢ断面である。これらの図において、１０は蓄電池短側面、４は蓄電 池短側面中央部を横断する梁であり、梁４の両端部は蓄電池短側面両角部の電槽 リブ９に固定フック５で固定されている。梁４は、蓄電池短側面１０の変位を圧 力として検知するための圧力検知器（後述）を固定するためのものであり、蓄電 池短側面１０の変位に連動するような柔軟なものであってはならず、剛性を有す る必要がある。１は、蓄電池短側面１０と梁４との間に、両者に挾持されて配設 された圧力検出装置である。圧力検出装置１としては、どのような原理の圧力検 出装置であっても良いが、蓄電池短側面１０と梁４との隙間が収縮し圧力検出装 置表面にかかる圧力値が一定値に上昇した時点で電気的出力が得られるものであ ればよい。６は梁４の内面に装着された加圧板で、圧力検出装置１に圧力が均一 にかかるようにしてある。７は圧力調整用ネジで、蓄電池機種によっては蓄電池 短側面１０と梁４の内面との間融が相達するため、これを調整するためのもので ある。８は電槽蓋、９は蓄電池四角に設けた電槽リブ、１１は蓄電池長側面であ る。２Ａ、２Ｂは圧力検出装置１内の電気接点の一例を示したもので、本接点は バネ状金属片により構成され、圧力検出装置表面に圧力が印加された場合、両金 属片は接触し、電気接点を構成する構造となってる。３Ａ，３Ｂは前記金属片に 接続された接続線であって、３Ａ側は蓄電池＋端子に接続され、電源端子となる 。３Ｂ側は出力端子であて、充電器制御部と接続される。Hereinafter, the present invention will be described in detail with reference to specific embodiments. FIG. 1 is a front view of a sealed lead-acid battery according to an embodiment of the present invention viewed from both sides on the short side, FIG. 2 is its AA cross section, and FIG. 3 is its BB cross section. In these figures, 10 is a short side surface of the storage battery, 4 is a beam that traverses the central portion of the short side surface of the storage battery, and both ends of the beam 4 are fixed to the battery case ribs 9 at both corners of the short side surface of the storage battery with fixing hooks 5. There is. The beam 4 is for fixing a pressure detector (described later) for detecting the displacement of the short side surface 10 of the storage battery as a pressure force, and is flexible so as to be linked to the displacement of the short side surface 10 of the storage battery. Must be rigid and rigid. Reference numeral 1 denotes a pressure detecting device which is disposed between the short side surface 10 of the storage battery and the beam 4 so as to be sandwiched between them. The pressure detection device 1 may be a pressure detection device of any principle, but the gap between the short side surface 10 of the storage battery and the beam 4 contracts, and the pressure value applied to the pressure detection device surface rises to a constant value. It suffices that the electrical output can be obtained at the point of time. A pressure plate 6 is attached to the inner surface of the beam 4 so that the pressure is uniformly applied to the pressure detecting device 1. Reference numeral 7 is a pressure adjusting screw for adjusting the short side surface 10 of the storage battery and the inner surface of the beam 4 depending on the storage battery model. Reference numeral 8 is a battery case lid, 9 is a battery case rib provided on a square of the storage battery, and 11 is a long side surface of the storage battery. 2A and 2B show an example of electrical contacts in the pressure detection device 1. This contact is composed of a spring-shaped metal piece, and when pressure is applied to the surface of the pressure detection device, both metal pieces come into contact with each other. , Has a structure that constitutes an electrical contact. 3A and 3B are connection lines connected to the metal piece, and the 3A side is connected to the storage battery + terminal and serves as a power supply terminal. The 3B side is an output terminal and is connected to the charger control unit.
【００１２】 蓄電池内圧が減圧時、短側面１０は外気圧と内圧との差圧により内側に湾曲す るため、短側面１０と梁４内面とで構成された間隙は拡大し、金属片２Ａ，２Ｂ は互いに隔離状態となって、出力の端子３Ｂは無電位となる。又、蓄電池内圧が 加圧状態となると、梁４内面の間隙は縮小し、所定値の圧力に達すると金属片２ Ａ、２Ｂは接触し、出力端子３Ｂには電源端子の電圧が印加される。前述したよ うに、蓄電池内圧が加圧状態になるのは充電状態が９５〜１００％に達した時点 と判断されるので、出力端子３Ｂに電源電圧が現われた時点で充電器を庶断でき る開路を構成すれば、どのようなシステムの充電法でも、過充電状態になる直前 で充電を遮断できる。When the internal pressure of the storage battery is reduced, the short side surface 10 bends inward due to the pressure difference between the external pressure and the internal pressure, so the gap formed by the short side surface 10 and the inner surface of the beam 4 expands, and the metal piece 2A, 2B are isolated from each other, and the output terminal 3B has no potential. When the internal pressure of the storage battery is increased, the gap on the inner surface of the beam 4 is reduced, and when the pressure reaches a predetermined value, the metal pieces 2A and 2B come into contact with each other, and the voltage of the power supply terminal is applied to the output terminal 3B. . As described above, it is determined that the internal pressure of the storage battery is in the pressurized state when the state of charge reaches 95 to 100%, so the charger can be disconnected when the power supply voltage appears at the output terminal 3B. With an open circuit, any system charging method can shut off the charge just before it becomes overcharged.
【００１３】 蓄電池の一部を薄内に構成し、その変化量を検出したり、又排気部に装着した ゴム弁の変化量を測定することにより蓄電池状態を検出することもできるが、こ れらいずれの方法も蓄電池内圧検出のため蓄電池蓋の形状を変えたり、またゴム 弁を装着している排気部の形状を特別な形状に変更する必要がある。また、現在 の密閉形蓄電池を前述した構造にすると量産性がなくなりコストアップの原因と なるため、検出装置の必要性を感じながらも実施されていないのが現状である。 本考案にかかる蓄電池状態検出装置によれば、従来の蓄電池そのものの設計変更 を伴うことなく、安価かつ確実に状態を検出することができる。It is possible to detect the amount of change in the storage battery by configuring a part of the storage battery in a thin space, and to measure the amount of change in the rubber valve attached to the exhaust unit. In any of these methods, it is necessary to change the shape of the storage battery lid to detect the internal pressure of the storage battery, and to change the shape of the exhaust part equipped with the rubber valve to a special shape. In addition, if the current sealed storage battery has the above-mentioned structure, mass productivity will be lost and cost will be increased. Therefore, the current situation is that it has not been implemented while feeling the need for a detection device. According to the storage battery state detection device of the present invention, it is possible to detect the state inexpensively and reliably without changing the design of the conventional storage battery itself.
【００１４】[0014]
本考案にかかるは蓄電池状態検出装置は、蓄電池短側面の中央部に架設された 剛性を有する梁であって、その両端が蓄電池短側面の両角部に固定されたものと 、梁と蓄電池短側面との間に挾持された圧力検出装置とを備え、蓄電池短側面の 膨張、収縮による変位を圧力検出装置で検出することにより充電制御を行うよう 構成されたことを特徴とする。従って、どのような蓄電池にも、蓄電池自体の構 造変更することなしに、応用できる。しかも、蓄電池の新旧、周囲温度、充電電 流等の相違にかかわらず、確実に状態検出が可能で、簡単な構造であり、その実 用的効果は大きい。 The storage battery state detection device according to the present invention is a rigid beam installed at the center of the storage battery short side surface, with both ends fixed to both corners of the storage battery short side surface, the beam and the storage battery short side surface. And a pressure detection device sandwiched between the pressure detection device and the pressure detection device, and the charging control is performed by detecting the displacement due to expansion and contraction of the short side surface of the storage battery by the pressure detection device. Therefore, it can be applied to any storage battery without changing the structure of the storage battery itself. Moreover, regardless of differences in old and new storage batteries, ambient temperature, charging current, etc., the state can be reliably detected, and the structure is simple, and its practical effect is great.
【図１】本考案の１実施例を示す図である。FIG. 1 is a diagram showing an embodiment of the present invention.
【図２】本考案の１実施例の断面図である。FIG. 2 is a sectional view of an embodiment of the present invention.
【図３】本考案の１実施例の断面図である。FIG. 3 is a sectional view of an embodiment of the present invention.
１ 圧力検出装置 ４ 梁 １０ 蓄電池短側面 1 Pressure detector 4 Beam 10 Storage battery short side
Claims (1)
れた剛性を有する梁（４）であって、その両端が蓄電池
短側面（１０）の両角部に固定されたものと、 梁（４）と蓄電池短側面（１０）との間に挾持された圧
力検出装置（１）とを備え、 蓄電池内部圧力の変化に伴う蓄電池短側面（１０）の膨
張、収縮の変位を圧力検出装置（１）で検出することに
より充電制御を行うよう構成された蓄電池状態検出装
置。1. A beam (4) having rigidity, which is erected in a central portion of a short side surface (10) of the storage battery, both ends of which are fixed to both corners of the short side surface (10) of the storage battery. 4) and a pressure detection device (1) sandwiched between the storage battery short side surface (10), and the pressure detection device detects the displacement of expansion and contraction of the storage battery short side surface (10) due to a change in the storage battery internal pressure. A storage battery state detection device configured to perform charging control by detecting in 1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4906992U JPH065123U (en) | 1992-06-18 | 1992-06-18 | Battery status detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4906992U JPH065123U (en) | 1992-06-18 | 1992-06-18 | Battery status detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH065123U true JPH065123U (en) | 1994-01-21 |
Family
ID=12820795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4906992U Pending JPH065123U (en) | 1992-06-18 | 1992-06-18 | Battery status detector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH065123U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002099922A1 (en) * | 2001-06-05 | 2002-12-12 | Japan Storage Battery Co., Ltd. | Storage battery device and power source apparatus comprising it |
-
1992
- 1992-06-18 JP JP4906992U patent/JPH065123U/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002099922A1 (en) * | 2001-06-05 | 2002-12-12 | Japan Storage Battery Co., Ltd. | Storage battery device and power source apparatus comprising it |
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