JPH01204360A - Short circuit-heat generation protecting circuit for storage battery - Google Patents
Short circuit-heat generation protecting circuit for storage batteryInfo
- Publication number
- JPH01204360A JPH01204360A JP63027981A JP2798188A JPH01204360A JP H01204360 A JPH01204360 A JP H01204360A JP 63027981 A JP63027981 A JP 63027981A JP 2798188 A JP2798188 A JP 2798188A JP H01204360 A JPH01204360 A JP H01204360A
- Authority
- JP
- Japan
- Prior art keywords
- storage battery
- temperature
- circuit
- heat generation
- diode
- 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
- 230000002159 abnormal effect Effects 0.000 claims abstract description 4
- 230000020169 heat generation Effects 0.000 claims description 7
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000001012 protector Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/572—Means for preventing undesired use or discharge
- H01M50/574—Devices or arrangements for the interruption of current
-
- 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
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Protection Of Static Devices (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明はポータプル機器用として多方面に利用２ ベー
／′
されておシ、最近では急激に需要が増加してきたＶＴＲ
用電源などに使用される蓄電池の短絡及び発熱保護回路
に関するものである。[Detailed Description of the Invention] Industrial Application Field The present invention has been used in a wide variety of applications for portable equipment, and recently demand for VTRs has increased rapidly.
This invention relates to short-circuit and overheat protection circuits for storage batteries used in power supplies and the like.
従来の技術
蓄電池の短絡保護回路に関しては、その代表的なものと
して短絡時の大電流によシ回路をしゃ断するＩＣプロテ
クタ、電流ヒユーズ、さらには短絡時の短絡電流による
発熱で溶断して回路をしゃ断する温度ヒユーズなどの素
子を蓄電池のセルと端子との間に接続する方式が用いら
れている。中でも温度スイッチは蓄電池の異常発熱によ
っても動作し、その後、所定温度以下になれば復帰する
ので蓄電池の短絡保護と異常発熱時の回路しゃ断の目的
を兼ね備えた素子として広く利用されている。Conventional technologies Regarding short-circuit protection circuits for storage batteries, representative examples include IC protectors that cut off the circuit due to large currents during short circuits, current fuses, and furthermore, IC protectors that cut off the circuits due to the large current during short circuits, and furthermore, those that cut off the circuits by melting due to the heat generated by the short circuit current during short circuits. A method is used in which an element such as a thermal fuse that shuts off is connected between a storage battery cell and a terminal. Temperature switches, in particular, operate even when a storage battery generates abnormal heat, and then return to normal operation when the temperature drops below a predetermined temperature, so they are widely used as elements that serve both the purpose of protecting storage batteries from short circuits and cutting off circuits in the event of abnormal heating.
発明が解決しようとする課題
しかし、温度スイッチを蓄電池のセルと端子との間に接
続した短絡及び発熱保護回路を用いた場合には以下の様
な問題が生ずる。すなわち、蓄電池を充電中、何らかの
理由例えば高温雰囲気下での充電で蓄電池の温度が上昇
し、温度スイッチが３ベーノ
動作した場合、蓄電池が冷却されることにょ多温度スイ
ッチが自動復帰するまで、蓄電池は放電不能となり、給
電面から実用上問題であった。Problems to be Solved by the Invention However, when a short circuit and heat generation protection circuit in which a temperature switch is connected between a storage battery cell and a terminal is used, the following problems occur. In other words, if the temperature of the storage battery rises for some reason while charging the storage battery, for example due to charging in a high-temperature atmosphere, and the temperature switch operates three times, the temperature switch will automatically reset until the storage battery is cooled down. It became impossible to discharge, which was a practical problem from a power supply standpoint.
本発明は上記の問題点を解決するものである。The present invention solves the above problems.
すなわち、上記のような使用モードでの温度スイッチの
動作後、その自動復帰を待たずして蓄電池を放電可能と
する蓄電池短絡及び発熱保護回路を提供するものである
。That is, the present invention provides a storage battery short-circuit and heat generation protection circuit that enables the storage battery to be discharged without waiting for automatic recovery after the temperature switch operates in the usage mode as described above.
課題を解決するための手段
この問題点を解決するため、本発明はダイオードと直列
に動作温度８１℃以上の温度ヒユーズを直列接続した回
路と、動作温度５０〜８０’Ｃ，復帰温度６ｏ℃未満の
温度スイッチとを並列に接続した保護回路を蓄電池に直
列に接続することを特命とするものである。Means for Solving the Problem In order to solve this problem, the present invention provides a circuit in which a temperature fuse with an operating temperature of 81°C or more is connected in series with a diode, and a circuit with an operating temperature of 50 to 80'C and a release temperature of less than 6oC. The special mission is to connect a protection circuit in series with the storage battery, which is connected in parallel with the temperature switch.
作用
本発明によれば、蓄電池の充電時の異常温度上昇時及び
高温雰囲気下での蓄電池端子間の短絡によシ、温度スイ
ッチが動作したのちも、温度ヒユーズとダイオードとか
らなるう回路によ多温度スイッチが自動復帰するまでの
蓄電池の冷却を待たずして、直ちに放電が可能となる。According to the present invention, even after the temperature switch is activated, the circuit consisting of the temperature fuse and the diode is used to prevent short circuits between the battery terminals when the temperature rises abnormally during charging of the storage battery or in a high-temperature atmosphere. Immediate discharge is possible without waiting for the storage battery to cool down until the multi-temperature switch automatically returns.
実施例
以下本発明の実施例について、第１図を用いて説明する
。EXAMPLE Hereinafter, an example of the present invention will be described with reference to FIG.
第１図において動作温度が１１０±５℃である温度ヒユ
ーズ２に直列にショットキー型ダイオード３を接続した
保護素子と、動作温度７ｏ±６℃１復帰温度４６±６℃
の温度スイッチ１とを並列接続した短絡及び発熱保護回
路の一端を、蓄電池セル４の正極端子に、他の一端を蓄
電池全体の正極端子板６に接続し、蓄電池セルの負極端
子を蓄電池の負極端子板６に接続した。In Figure 1, there is a protection element in which a Schottky diode 3 is connected in series to a temperature fuse 2 whose operating temperature is 110 ± 5°C, an operating temperature of 7°C ± 6°C, a release temperature of 46 ± 6°C.
One end of the short-circuit and heat protection circuit, which is connected in parallel with the temperature switch 1 of the storage battery cell 4, is connected to the positive terminal of the storage battery cell 4, the other end is connected to the positive terminal plate 6 of the entire storage battery, and the negative terminal of the storage battery cell is connected to the negative terminal of the storage battery. It was connected to the terminal board 6.
次に本発明の効果について説明する。Next, the effects of the present invention will be explained.
高温雰囲気（５０’Ｃ）下で実施例に示したような蓄電
池の充電を行い、故意に温度スイッチ１を動作させる。A storage battery as shown in the example is charged in a high temperature atmosphere (50'C), and the temperature switch 1 is intentionally operated.
このことによシ蓄電池の充電はダイオードの逆流阻止機
能で強制的に中断され、蓄電池温度は温度スイッチ１の
動作温度以上に上昇することはない。さらにこの蓄電池
を充電器よシと６ベージ
りはずし、室温２５℃下で、ただちに０．８５ Ａの定
電流放電を行う。この場合、ショットキーダイオード３
を通して放電が行われるため、蓄電池の冷却時間（２６
℃で３０分〜１時間）を待つことなく放電が可能となっ
た。このときの放電特性の一例を第２図に示した。温度
スイッチが復帰した時にダイオード間のドロップ電圧分
だけ、蓄電池端子間電圧が上昇する他は通常の放電特性
２と変わシがない。また蓄電池端子間の短絡時には温度
スイッチ及び温度ヒユーズが動作することによシ、蓄電
池セル一端子間の接続がしゃ断され、これらの特性は従
来の特性と何ら変わるところがない。As a result, charging of the storage battery is forcibly interrupted by the reverse current blocking function of the diode, and the storage battery temperature does not rise above the operating temperature of the temperature switch 1. Furthermore, this storage battery was removed from the charger and immediately discharged at a constant current of 0.85 A at a room temperature of 25°C. In this case, Schottky diode 3
Since the discharge takes place through the storage battery cooling time (26
It became possible to discharge without waiting for 30 minutes to 1 hour at ℃. An example of the discharge characteristics at this time is shown in FIG. This is the same as the normal discharge characteristic 2, except that when the temperature switch is reset, the voltage between the storage battery terminals increases by the voltage drop across the diodes. Furthermore, when there is a short circuit between the storage battery terminals, the temperature switch and the temperature fuse operate to cut off the connection between the storage battery cell terminals, and these characteristics are no different from conventional characteristics.
さらに温度スイッチが動作した状態で端子間を短絡させ
た場合、温度ヒユーズが動作し、蓄電池セル一端子間接
続がしゃ断され、安全が保たれる。Furthermore, if the temperature switch is activated and the terminals are short-circuited, the temperature fuse is activated and the connection between one terminal of the storage battery cell is cut off, thereby maintaining safety.
発明の効果
このように本発明では、温度スイッチが動作したのちも
、温度ヒユーズとダイオードとからなるう回路によ多温
度スイッチが自動復帰するまでの冷却期間を待たずして
直ちに放電することができ６へ一ノ
る。Effects of the Invention As described above, in the present invention, even after the temperature switch is activated, the multi-temperature switch can be immediately discharged without waiting for a cooling period until it automatically returns to its normal state due to the circuit consisting of the temperature fuse and the diode. Ichino goes to Deki 6.
第１図は本発明による蓄電池用短絡及び発熱防止回路を
示す図、第２図は本発明による蓄電池用短絡及び発熱防
止回路が高温（５０’Ｃ）雰囲気下の蓄電池の充電によ
多動作した後の蓄電池の放電電圧特性を示す図である。
１・・・・・・温度スイッチ、２・山・・温度ヒユーズ
、３・・・・・・ダイオード、４・・・・・蓄電池のセ
ル、５，６・・・・・・蓄電池の端子板。Fig. 1 is a diagram showing a short circuit and heat generation prevention circuit for a storage battery according to the present invention, and Fig. 2 is a diagram showing a short circuit and heat generation prevention circuit for a storage battery according to the present invention that operates frequently when charging a storage battery in a high temperature (50'C) atmosphere. It is a figure which shows the discharge voltage characteristic of a subsequent storage battery. 1... Temperature switch, 2... Temperature fuse, 3... Diode, 4... Storage battery cell, 5, 6... Storage battery terminal board. .
Claims (2)
セルと端子間の接続をしゃ断する保護回路であって、自
動復帰形温度スイッチと並列に、この温度スイッチより
も高温で溶断動作する温度ヒューズとダイオードとを直
列に接続した素子を接続したことを特徴とする蓄電池用
短絡及び発熱保護回路。(1) A protection circuit that cuts off the connection between the cells and terminals of the storage battery in the event of a short circuit between the terminals of the storage battery or abnormal heat generation, and is installed in parallel with an automatic reset type temperature switch, and operates at a temperature higher than that of the temperature switch. A short-circuit and heat generation protection circuit for a storage battery, characterized by connecting an element in which a fuse and a diode are connected in series.
度を５０℃未満とし、温度ヒューズの動作温度を８１℃
以上とし、さらにダイオードとしてショットキーダイオ
ードを使用した特許請求の範囲第１項記載の蓄電池用短
絡及び発熱保護回路。(2) The operating temperature of the temperature switch should be 50 to 80°C, the reset temperature should be less than 50°C, and the operating temperature of the thermal fuse should be 81°C.
A short-circuit and heat generation protection circuit for a storage battery according to claim 1, which further uses a Schottky diode as the diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63027981A JPH01204360A (en) | 1988-02-09 | 1988-02-09 | Short circuit-heat generation protecting circuit for storage battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63027981A JPH01204360A (en) | 1988-02-09 | 1988-02-09 | Short circuit-heat generation protecting circuit for storage battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01204360A true JPH01204360A (en) | 1989-08-16 |
Family
ID=12236034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63027981A Pending JPH01204360A (en) | 1988-02-09 | 1988-02-09 | Short circuit-heat generation protecting circuit for storage battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01204360A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1353429A1 (en) * | 2001-02-06 | 2003-10-15 | Sony Chemicals Corp. | Protection circuit-equipped secondary battery |
| EP3336935A1 (en) * | 2016-12-19 | 2018-06-20 | SK Innovation Co., Ltd. | Battery safety apparatus |
-
1988
- 1988-02-09 JP JP63027981A patent/JPH01204360A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1353429A1 (en) * | 2001-02-06 | 2003-10-15 | Sony Chemicals Corp. | Protection circuit-equipped secondary battery |
| EP1353429A4 (en) * | 2001-02-06 | 2009-05-13 | Sony Chemicals Corp | Protection circuit-equipped secondary battery |
| EP3336935A1 (en) * | 2016-12-19 | 2018-06-20 | SK Innovation Co., Ltd. | Battery safety apparatus |
| US20180175457A1 (en) * | 2016-12-19 | 2018-06-21 | Sk Innovation Co., Ltd. | Battery Safety Apparatus |
| KR20180070876A (en) * | 2016-12-19 | 2018-06-27 | 에스케이이노베이션 주식회사 | Apparatus for protecting battery |
| CN108258183A (en) * | 2016-12-19 | 2018-07-06 | Sk新技术株式会社 | Cell safety equipment |
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