JP2008234840A - Protecting apparatus - Google Patents

Protecting apparatus Download PDF

Info

Publication number
JP2008234840A
JP2008234840A JP2007068054A JP2007068054A JP2008234840A JP 2008234840 A JP2008234840 A JP 2008234840A JP 2007068054 A JP2007068054 A JP 2007068054A JP 2007068054 A JP2007068054 A JP 2007068054A JP 2008234840 A JP2008234840 A JP 2008234840A
Authority
JP
Japan
Prior art keywords
secondary battery
electrode
power supply
electronic device
protection device
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
Application number
JP2007068054A
Other languages
Japanese (ja)
Other versions
JP5048366B2 (en
Inventor
Katsumasa Ishihara
克政 石原
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP2007068054A priority Critical patent/JP5048366B2/en
Publication of JP2008234840A publication Critical patent/JP2008234840A/en
Application granted granted Critical
Publication of JP5048366B2 publication Critical patent/JP5048366B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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

Abstract

<P>PROBLEM TO BE SOLVED: To provide a protecting apparatus making it possible to detect continuous expansion in a secondary battery at an early timing by automatically stopping power supply to an electronic circuit when an outer shape of the secondary battery is expanded and automatically restarting power supply to the electronic circuit when the outer shape of the secondary battery is recovered. <P>SOLUTION: When the outer shape of the secondary battery is expanded, the protecting apparatus automatically stops power supply to electronic equipment. Therefore, a user senses some sort of abnormality and can take a suitable action at the early timing. Furthermore, when the outer form of the secondary battery is recovered, the power supply to the electronic circuit is automatically restarted. Therefore, the electronic equipment can be used continually by evading an excessive action against expansion problems with the secondary battery which are relatively not so acute. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、充電可能な二次電池を有する電子機器の保護装置に関し、特に二次電池の膨張によって電子機器への電力供給を自動的に停止する保護装置に関するものである。   The present invention relates to a protection device for an electronic device having a rechargeable secondary battery, and more particularly to a protection device that automatically stops power supply to an electronic device due to expansion of the secondary battery.

現在、携帯電話機、携帯型音響機器、モバイルパソコン、ＰＤＡ、その他の携帯用の電子機器は広く一般に普及しており、特に、携帯電話機は人々の生活に必要不可欠なものとなってきている。このような、携帯用の電子機器への電力供給源としては、外部電源、発電装置などから充電することが可能な二次電池が一般的に用いられる。また、この二次電池は電気自動車などの移動装置等の動力源としても用いられている。   At present, mobile phones, portable audio devices, mobile personal computers, PDAs, and other portable electronic devices are widely used. In particular, mobile phones have become indispensable for people's lives. As a power supply source for such portable electronic devices, secondary batteries that can be charged from an external power source, a power generation device, or the like are generally used. The secondary battery is also used as a power source for a mobile device such as an electric vehicle.

しかしながら、近年このような電子機器に用いられる二次電池が、内圧の異常増加などの何らかの原因によって膨張するという問題が発生している。   However, in recent years, there has been a problem that secondary batteries used in such electronic devices expand due to some cause such as an abnormal increase in internal pressure.

上記の膨張した二次電池は、電子機器に対して通常通り電力を供給し続ける場合と、電力の供給に異常が生じる場合とがある。また、特に二次電池のパッケージが樹脂やラミネート材等のように軟らかな材料で構成されている場合、二次電池の膨張が何らかの原因で復元し、そのまま通常どおり使用可能な場合も存在する。   The expanded secondary battery has a case where power is continuously supplied to an electronic device as usual and a case where abnormality occurs in the supply of power. In particular, when the package of the secondary battery is made of a soft material such as a resin or a laminate, there is a case where the expansion of the secondary battery is restored for some reason and can be used as usual.

二次電池の膨張により電力供給に異常が生じる場合には、この出力異常を感知する保護装置が所定の処置を行うため、ユーザは電子機器の異常を認識することができる。しかし、膨張した二次電池に電力供給の異常が生じない場合、上記の保護装置は作動せず膨張した二次電池が電子機器に電力を供給し続けることとなる。またこの場合、電子機器は正常に稼動するため、ユーザは電子機器の異常を知ることができない。このような膨張した二次電池による継続した電力供給は、如何に供給される電力に異常がないとしても好ましいものではない。   When an abnormality occurs in the power supply due to the expansion of the secondary battery, the protection device that detects this output abnormality performs a predetermined treatment, so that the user can recognize the abnormality of the electronic device. However, in the case where power supply abnormality does not occur in the expanded secondary battery, the protection device does not operate and the expanded secondary battery continues to supply power to the electronic device. In this case, since the electronic device operates normally, the user cannot know the abnormality of the electronic device. Such continuous power supply by the expanded secondary battery is not preferable even if there is no abnormality in the supplied power.

更に、二次電池の膨張の原因によっては電子機器に電力を供給し続けることで更に膨張し、最終的に破裂するなどして電子機器に大きな被害を及ぼす可能性や、突然の異常放電によって電子回路に損害を与える可能性も否めない。また、二次電池の膨張によって発生する物理的な力により、電子機器のパッケージングや電子機器を構成する電子部品、部材等に歪みや亀裂を生じさせたり、電子機器がスイッチやモータなどを備えている場合、これらに異常な負荷を与え誤作動や故障を引き起こす可能性もある。更に、膨張の原因によっては発熱を伴うものもあり、特に二次電池の規模、容量が大きなものの場合には、この二次電池の膨張に関与する発熱などにより、二次電池自体もしくは二次電池の周囲の構成部材等が、発火、爆発するなどして、最悪の場合ユーザに人的被害を及ぼすことも想定される。   Furthermore, depending on the cause of the expansion of the secondary battery, it may expand further by continuing to supply power to the electronic device, and may eventually rupture, causing serious damage to the electronic device, or sudden abnormal discharge. There is no denying the possibility of damage to the circuit. In addition, the physical force generated by the expansion of the secondary battery may cause distortion or cracks in the packaging of electronic devices and the electronic components and members that make up the electronic devices, and the electronic devices include switches and motors. If this is the case, an abnormal load may be applied to them, causing malfunction or failure. In addition, some batteries may generate heat depending on the cause of expansion. In particular, in the case where the secondary battery has a large scale and large capacity, the secondary battery itself or the secondary battery may be caused by heat generation related to expansion of the secondary battery. In the worst case, it is also assumed that structural members and the like around the user may cause a human damage to the user due to ignition or explosion.

上記の問題に対して、下記[特許文献１]及び[特許文献２]に開示されている発明では、いずれも二次電池の充放電に関わる主要な部材を改善することで、二次電池の膨張の発生を防止している。   In the inventions disclosed in the following [Patent Document 1] and [Patent Document 2] with respect to the above-mentioned problems, both of the secondary batteries are improved by improving main members related to charging and discharging of the secondary battery. The occurrence of expansion is prevented.

特開２００６−３３９０１１号公報JP 2006-339011 A

特開２００６−２６９２３４号公報JP 2006-269234 A

しかしながら、二次電池の膨張の原因は一つではないことに加え、二次電池の膨張は電子機器の使用環境、使用状況、その他の要因が複雑に絡み合って発生するものであるため未解明の部分が多く、[特許文献１]及び[特許文献２]に開示された発明によっても、二次電池の膨張を完全に防止することはできない。また、全ての二次電池の発生原因を特定し、それを回避するような二次電池を開発するには未だ多くの時間を要する。   However, in addition to the cause of secondary battery expansion, the secondary battery expansion is caused by complex intertwining of the usage environment, usage conditions, and other factors of electronic equipment, which has yet to be elucidated. There are many parts, and even the invention disclosed in [Patent Document 1] and [Patent Document 2] cannot completely prevent the secondary battery from expanding. Moreover, it takes much time to identify the cause of occurrence of all secondary batteries and to develop a secondary battery that avoids them.

本発明は、上記事情に鑑みてなされたものであり、二次電池の外形膨張時には自動的に電子回路への電力供給を停止し、二次電池の外形が復元すると自動的に電子回路への電力供給を再開させることで、継続的な二次電池の膨張を早期に発見することが可能な保護装置を提供することを目的とする。   The present invention has been made in view of the above circumstances, and automatically stops power supply to the electronic circuit when the outer shape of the secondary battery expands, and automatically returns to the electronic circuit when the outer shape of the secondary battery is restored. An object of the present invention is to provide a protection device that can detect continuous expansion of a secondary battery at an early stage by restarting power supply.

本発明は、二次電池１６からの電力供給により稼動する電子機器１０に設置され、二次電池１６の外形膨張に伴い前記電子機器１０への電力供給を自動的に停止するとともに、二次電池１６の外形の復元に伴い前記電子機器１０への電力供給を自動的に再開することを特徴とする保護装置５０を提供することにより、上記課題を解決する。
また、二次電池１６の側面側に設けられた第１電極２０と第１電極２０と対向するように設けられた第２電極２２とが、二次電池１６の外形の膨張もしくは復元によって非接触状態もしくは接触状態となることにより、電子機器１０への電力供給を電気的に停止もしくは再開することを特徴とする上記の保護装置５０ａ、５０ｂ、５０ｃを提供することにより、上記課題を解決する。
また、二次電池１６の外形膨張時に第１電極２０及び第２電極２２の設置方向に復元力を生じる弾性体２４を設けたことを特徴とする上記の保護装置５０ｄ、５０ｅ、５０ｆを提供することにより、上記課題を解決する。
また、二次電池１６の側面側に設けられた開閉器２８が、二次電池１６の外形の膨張もしくは復元によって開閉することにより、電子機器１０への電力供給を停止もしくは再開することを特徴とする上記の保護装置５０ｇを提供することにより、上記課題を解決する。
また、第１電極２０を二次電池１６の側面に固定したことを特徴とする上記の保護装置５０を提供することにより、上記課題を解決する。 The present invention is installed in an electronic device 10 that is operated by power supply from a secondary battery 16, and automatically stops power supply to the electronic device 10 as the secondary battery 16 expands in outer shape. The above-described problem is solved by providing a protection device 50 that automatically restarts the power supply to the electronic device 10 in accordance with the restoration of 16 external shapes.
Further, the first electrode 20 provided on the side surface side of the secondary battery 16 and the second electrode 22 provided so as to face the first electrode 20 are not in contact with each other by expansion or restoration of the outer shape of the secondary battery 16. By providing the protection devices 50a, 50b, and 50c described above, wherein the power supply to the electronic device 10 is electrically stopped or restarted by entering the state or the contact state, the above-described problems are solved.
In addition, the protection devices 50d, 50e, and 50f are provided, which are provided with the elastic body 24 that generates a restoring force in the installation direction of the first electrode 20 and the second electrode 22 when the secondary battery 16 expands. This solves the above problem.
In addition, the switch 28 provided on the side surface of the secondary battery 16 is opened or closed by expansion or restoration of the outer shape of the secondary battery 16 to stop or restart the power supply to the electronic device 10. The above-described problem is solved by providing the protective device 50g.
Moreover, the said subject is solved by providing said protective device 50 characterized by fixing the 1st electrode 20 to the side surface of the secondary battery 16. FIG.

本発明に係る保護装置は、上記の構成により、
（１）二次電池の外形が膨張すると電力供給の異常の有無に関わらず自動的に電子機器への電力供給を停止するため、ユーザが異常を感知して早期に適切な処置を行う事ができる。
（２）二次電池の外形が復元すると自動的に電子機器への電力供給を再開するため、二次電池の短期的かつ非継続的な比較的問題の少ない膨張に際しては、過剰な処置を回避して電子機器をそのまま継続して使用することができる。 The protection device according to the present invention has the above-described configuration.
(1) When the outer shape of the secondary battery expands, the power supply to the electronic device is automatically stopped regardless of whether there is an abnormality in the power supply. Therefore, the user may detect an abnormality and take appropriate measures at an early stage. it can.
(2) Since the power supply to the electronic device is automatically resumed when the secondary battery's external shape is restored, excessive treatment should be avoided when the secondary battery expands in a short-term and non-continuous manner with relatively little problem. Thus, the electronic device can be used as it is.

本発明に係る保護装置の実施の形態について図面に基づいて説明する。図１は、本発明に係る保護装置を携帯型予備充電器に適用した場合の概略図である。図２は、本発明に係る保護装置の第１の形態を示す部分拡大図である。図３は、本発明に係る保護装置の第２の形態を示す部分拡大図である。図４は、本発明に係る保護装置の第３の形態を示す部分拡大図である。図５は、本発明に係る保護装置の変形例を示す部分拡大図である。尚、ここで述べる実施の形態は本発明の好適な具体例であるから、技術的に好ましい種々の限定が付されているが、本発明の範囲は以下の説明において特に本発明を限定する旨の記載がない限り、これらの態様に限られるものではない。   Embodiments of a protection device according to the present invention will be described with reference to the drawings. FIG. 1 is a schematic view when the protection device according to the present invention is applied to a portable precharger. FIG. 2 is a partially enlarged view showing a first embodiment of the protection device according to the present invention. FIG. 3 is a partially enlarged view showing a second embodiment of the protection device according to the present invention. FIG. 4 is a partially enlarged view showing a third embodiment of the protection device according to the present invention. FIG. 5 is a partially enlarged view showing a modification of the protective device according to the present invention. The embodiments described here are preferred specific examples of the present invention, and thus various technically preferable limitations are given. However, the scope of the present invention is particularly limited in the following description. Unless otherwise described, the present invention is not limited to these embodiments.

図１に示す携帯電話機への携帯型予備充電器である電子機器１０は、外装体１２の内部に二次電池１６と回路基板１８とを有しており、回路基板１８には二次電池１６の過充電、過熱、過電流、過放電、短絡に対する保護回路や、電子機器１０の動作を制御する制御回路などの電子回路を有している。これらの二次電池１６と回路基板１８は外装体１２に固定され、更に外装体１２と二次電池１６との間には、本発明に係る保護装置５０が設けられる。尚、保護装置５０は二次電池１６の回路基板１８の無い側の側面（回路基板１８とは反対側の面もしくはその面と隣合う側面）に設置することが好ましいが、保護装置５０が回路基板１８の動作に影響を与えないような措置を講ずれば回路基板１８側に設置しても構わない。また、保護装置５０は必ずしも単数である必要は無く、二次電池１６の複数の側面にそれぞれ設置することも可能である。尚、二次電池１６が電池収納部などに収納されて用いられる場合には、この電池収納部が外装体１２となる。更に、二次電池１６が何らかの固定された装置、基板、部材等に隣接して配置される場合には、それらの隣接する装置、基板、部材等における二次電池１６側の面を外装体１２とみなし、この間に保護装置５０を設けても良い。   An electronic device 10 that is a portable precharger for a mobile phone shown in FIG. 1 includes a secondary battery 16 and a circuit board 18 inside an exterior body 12, and the circuit board 18 includes a secondary battery 16. And an electronic circuit such as a protection circuit against overcharge, overheat, overcurrent, overdischarge, and short circuit, and a control circuit for controlling the operation of the electronic device 10. The secondary battery 16 and the circuit board 18 are fixed to the exterior body 12, and a protection device 50 according to the present invention is provided between the exterior body 12 and the secondary battery 16. The protective device 50 is preferably installed on the side surface of the secondary battery 16 on the side without the circuit board 18 (the surface opposite to the circuit board 18 or the side surface adjacent thereto). If measures are taken so as not to affect the operation of the board 18, the circuit board 18 may be installed. Moreover, the protection device 50 does not necessarily need to be singular, and can be installed on each of a plurality of side surfaces of the secondary battery 16. In addition, when the secondary battery 16 is stored and used in a battery storage unit or the like, the battery storage unit becomes the exterior body 12. Further, when the secondary battery 16 is disposed adjacent to any fixed device, substrate, member, etc., the surface of the adjacent device, substrate, member, etc. on the secondary battery 16 side is the exterior body 12. The protective device 50 may be provided between them.

電子機器１０に用いる二次電池１６の種類には特に限定は無く、リチウムイオン電池、ニッケルカドミウム電池、ニッケル水素電池などの他、周知の二次電池を用いることが可能である。   The type of the secondary battery 16 used in the electronic device 10 is not particularly limited, and a known secondary battery can be used in addition to a lithium ion battery, a nickel cadmium battery, a nickel hydrogen battery, and the like.

次に、携帯型予備充電器である電子機器１０の動作の概略を説明する、先ず、電子機器１０を構成する二次電池１６を充電する場合、二次電池１６と電力供給源５とを回路基板１８を介して接続する。これにより、電力供給源５からの電力が二次電池１６に充電される。   Next, an outline of the operation of the electronic device 10 which is a portable precharger will be described. First, when the secondary battery 16 constituting the electronic device 10 is charged, the secondary battery 16 and the power supply source 5 are connected to the circuit. The connection is made through the substrate 18. As a result, the secondary battery 16 is charged with power from the power supply source 5.

電力供給源５としては、家庭用コンセント又は、家庭用コンセントに接続された携帯電話機６の充電器もしくはＡＣ−ＤＣ変換アダプタ、シガーソケットを介した車両用バッテリ、光の照射により発電する太陽電池パネルなどを用いることができる。   Examples of the power supply source 5 include a household outlet, a charger of a mobile phone 6 connected to the household outlet or an AC-DC conversion adapter, a vehicle battery via a cigar socket, and a solar panel that generates power by light irradiation. Etc. can be used.

次に、携帯型予備充電器である電子機器１０を用いて携帯電話機６内の二次電池に充電を行う場合、二次電池１６と携帯電話機６とを回路基板１８を介して接続する。これにより、二次電池１６に蓄電された電力が出力され、携帯電話機６の二次電池が充電される。   Next, when charging the secondary battery in the mobile phone 6 using the electronic device 10 that is a portable precharger, the secondary battery 16 and the mobile phone 6 are connected via the circuit board 18. Thereby, the electric power stored in the secondary battery 16 is output, and the secondary battery of the mobile phone 6 is charged.

次に、本発明に係る保護装置５０の動作を説明する。保護装置５０は、二次電池１６が通常状態の場合には特別な動作は行わず、よって電子機器１０は通常通り動作する。しかし、図１中の破線で示すように、二次電池１６の外形が何らかの原因によって膨張した場合には、保護装置５０がこの膨張を感知して例えばスイッチング機構５１を開く等の所定の動作を行い、電子機器１０への電力供給を自動的に停止する。これにより、二次電池１６に対する充放電動作を含む電子機器１０の動作は停止する。この停止動作は二次電池１６の外形が膨張している間継続する。   Next, the operation of the protection device 50 according to the present invention will be described. The protection device 50 does not perform any special operation when the secondary battery 16 is in a normal state, and thus the electronic device 10 operates normally. However, as shown by the broken line in FIG. 1, when the outer shape of the secondary battery 16 expands for some reason, the protection device 50 detects the expansion and performs a predetermined operation such as opening the switching mechanism 51, for example. The power supply to the electronic device 10 is automatically stopped. Thereby, operation | movement of the electronic device 10 including charging / discharging operation | movement with respect to the secondary battery 16 stops. This stopping operation continues while the outer shape of the secondary battery 16 is expanded.

また、二次電池１６の外形が内部のガスの放出等の何らかの原因により復元したときには、保護装置５０は例えばスイッチング機構５１を閉じる等の所定の動作を行い、二次電池１６からの電子機器１０への電力供給を再開させる。これにより、電子機器１０は通常通りの動作を開始する。   Further, when the external shape of the secondary battery 16 is restored due to some cause such as internal gas release, the protection device 50 performs a predetermined operation such as closing the switching mechanism 51, and the electronic device 10 from the secondary battery 16. Restart the power supply to. Thereby, the electronic device 10 starts the normal operation.

尚、スイッチング機構５１としてはオートリセット機能付のスイッチングＩＣ、スイッチングトランジスタ、その他の回路構成によるスイッチング回路、開閉器等の周知の機構を、保護装置５０の構成によって適宜選択して使用することができる。また、スイッチング機構５１は必ずしも回路基板１８上に設ける必要は無い他、後述するように保護装置５０がスイッチング機構５１を兼ね備えるようにしても良い。   As the switching mechanism 51, a well-known mechanism such as a switching IC with an auto reset function, a switching transistor, a switching circuit having other circuit configuration, a switch, or the like can be appropriately selected depending on the configuration of the protection device 50. . Further, the switching mechanism 51 is not necessarily provided on the circuit board 18, and the protection device 50 may also have the switching mechanism 51 as described later.

次に、本発明に係る保護装置の第１の形態を図２の部分拡大図を用いて説明する。尚、以下に示す図２〜図５においては、保護装置５０における電気配線の記載は省略する。   Next, the 1st form of the protection apparatus which concerns on this invention is demonstrated using the partial enlarged view of FIG. In addition, in FIG. 2 to FIG. 5 shown below, description of electric wiring in the protection device 50 is omitted.

図２（ａ１）、（ａ２）に示す本発明に係る第１の形態の保護装置５０ａは、二次電池１６の側面側に設けられた第１電極２０と、外装体１２側に第１電極２０と対向するように設けられた第２電極２２と、図示しないスイッチング機構を有している。そして、第１電極２０と第２電極２２とは、所定の間隔（約１ｍｍ程度が好ましい。）を取って設置されている。   A protection device 50a according to the first embodiment of the present invention shown in FIGS. 2 (a1) and 2 (a2) includes a first electrode 20 provided on the side of the secondary battery 16 and a first electrode on the exterior body 12 side. 20 has a second electrode 22 provided to face 20 and a switching mechanism (not shown). The first electrode 20 and the second electrode 22 are installed with a predetermined distance (preferably about 1 mm).

先ず、二次電池１６の外形に膨張が生じていない場合、図２（ａ１）に示すように、第１電極２０と第２電極２２とは非接触の状態にある。このような場合には、保護装置５０ａは特別な動作は行わず電子機器１０は通常通り動作する。しかし、図２（ａ２）に示すように、二次電池１６の外形が膨張した場合、二次電池１６の側面側に設けられた第１電極２０は、この二次電池１６の膨張により外装体１２側に設けられた第２電極２２の方向に押し上げられることとなる。そして、二次電池１６の膨張が第１電極２０と第２電極２２との隙間間隔を超えるまでに増大すると、第１電極２０と第２電極２２とが接触する。第１電極２０と第２電極２２とには図示しない電気配線が施されており、この接触により第１電極２０と第２電極２２とが電気的に導通する。また、第１電極２０及び第２電極２２の電気配線の先には図示しないスイッチング機構が接続されており、このスイッチング機構は第１電極２０と第２電極２２との導通を受けて、二次電池１６からの電子機器１０への電力供給を停止させる。これにより、電子機器１０の動作は停止する。   First, when the secondary battery 16 does not expand, the first electrode 20 and the second electrode 22 are not in contact with each other, as shown in FIG. In such a case, the protective device 50a does not perform any special operation, and the electronic device 10 operates normally. However, as shown in FIG. 2 (a2), when the outer shape of the secondary battery 16 expands, the first electrode 20 provided on the side surface of the secondary battery 16 has an exterior body due to the expansion of the secondary battery 16. It is pushed up in the direction of the second electrode 22 provided on the 12 side. When the expansion of the secondary battery 16 increases to exceed the gap distance between the first electrode 20 and the second electrode 22, the first electrode 20 and the second electrode 22 come into contact with each other. The first electrode 20 and the second electrode 22 are provided with electrical wiring (not shown), and the first electrode 20 and the second electrode 22 are electrically connected by this contact. In addition, a switching mechanism (not shown) is connected to the tip of the electrical wiring of the first electrode 20 and the second electrode 22, and this switching mechanism receives the conduction between the first electrode 20 and the second electrode 22, so that the secondary electrode The power supply from the battery 16 to the electronic device 10 is stopped. Thereby, the operation of the electronic device 10 is stopped.

また、二次電池１６の外形が復元したときには、第１電極２０と第２電極２２とは、図２（ａ１）に示すように再度非接触の状態となり、第１電極２０と第２電極２２との導通は遮断される。第１電極２０と第２電極２２との導通が遮断されると、図示しないスイッチング機構は二次電池１６からの電子機器１０への電力供給を再開させ、これにより電子機器１０は通常通り動作する。   When the outer shape of the secondary battery 16 is restored, the first electrode 20 and the second electrode 22 are brought into a non-contact state again as shown in FIG. Connection with is interrupted. When the conduction between the first electrode 20 and the second electrode 22 is interrupted, a switching mechanism (not shown) resumes power supply from the secondary battery 16 to the electronic device 10, whereby the electronic device 10 operates normally. .

以上の動作により、保護装置５０ａは二次電池１６の外形膨張時には電子機器１０への電力供給を停止させ、二次電池１６の外形が復元したときには電子機器１０への電力供給を再開させることができる。   With the above operation, the protection device 50a can stop the power supply to the electronic device 10 when the outer shape of the secondary battery 16 expands, and can restart the power supply to the electronic device 10 when the outer shape of the secondary battery 16 is restored. it can.

次に、本発明に係る保護装置の第１の形態の第１変形例を図２（ｂ１）、（ｂ２）に示す。保護装置の第１の形態の第１変形例である保護装置５０ｂは、二次電池１６の側面側に設けられた先端部分のみに導電性を有する凸状の第１電極２０と、外装体１２側に設けられた先端部分のみに導電性を備えた凹部を有する円筒状もしくはＵ字状の第２電極２２と、第１電極２０と第２電極２２とに接続された図示しないスイッチング機構とを有している。そして、第１電極２０と第２電極２２とは、第１電極２０の凸部が第２電極２２の凹部内を可動するように対向して設置されている。   Next, the 1st modification of the 1st form of the protection device concerning the present invention is shown in Drawing 2 (b1) and (b2). A protection device 50b, which is a first modification of the first form of the protection device, includes a convex first electrode 20 having conductivity only at a tip portion provided on the side surface side of the secondary battery 16, and the exterior body 12. A cylindrical or U-shaped second electrode 22 having a conductive recess only at the tip provided on the side, and a switching mechanism (not shown) connected to the first electrode 20 and the second electrode 22. Have. The first electrode 20 and the second electrode 22 are disposed to face each other so that the convex portion of the first electrode 20 can move in the concave portion of the second electrode 22.

先ず、二次電池１６の外形に膨張が生じていない場合、図２（ｂ１）に示すように、導電性を共に有する第１電極２０の先端部分と第２電極２２の凹部の先端部分とが接触状態にあり、第１電極２０と第２電極２２とは電気的に導通している。   First, when the outer shape of the secondary battery 16 is not expanded, as shown in FIG. 2 (b1), the leading end portion of the first electrode 20 and the leading end portion of the concave portion of the second electrode 22 both have conductivity. The first electrode 20 and the second electrode 22 are in electrical contact with each other.

しかし、二次電池１６の外形が膨張した場合、導電性を有する第１電極２０の先端部分は、この二次電池１６の膨張により絶縁性を示す第２電極２２の凹部の奥側（図２（ｂ１）、（ｂ２）の斜線部）方向に押し上げられこととなる。これにより、図２（ｂ２）に示すように、第１電極２０と第２電極２２とは非接触の状態となり、第１電極２０と第２電極２２との導通は遮断される。   However, when the outer shape of the secondary battery 16 expands, the front end portion of the conductive first electrode 20 is located on the back side of the recess of the second electrode 22 that exhibits insulation due to the expansion of the secondary battery 16 (FIG. 2). It is pushed up in the direction of (b1) and (b2). As a result, as shown in FIG. 2 (b2), the first electrode 20 and the second electrode 22 are not in contact with each other, and the conduction between the first electrode 20 and the second electrode 22 is interrupted.

更に、二次電池１６の外形が復元したときには、図２（ｂ１）に示すように、第１電極２０と第２電極２２とは再度接触状態となり、第１電極２０と第２電極２２とは導通する。   Further, when the outer shape of the secondary battery 16 is restored, as shown in FIG. 2 (b1), the first electrode 20 and the second electrode 22 are brought into contact again, and the first electrode 20 and the second electrode 22 are in contact with each other. Conduct.

第１電極２０及び第２電極２２には図示しないスイッチング機構が接続されており、このスイッチング機構は保護装置５０ａの場合とは逆に第１電極２０と第２電極２２との導通が遮断された場合に電子機器１０への電力供給を停止させるよう動作する。   A switching mechanism (not shown) is connected to the first electrode 20 and the second electrode 22, and this switching mechanism interrupts conduction between the first electrode 20 and the second electrode 22, contrary to the case of the protective device 50 a. In such a case, the power supply to the electronic device 10 is stopped.

これにより、保護装置５０ｂは保護装置５０ａと同様、二次電池１６の外形膨張時には電子機器１０への電力供給を停止させ、二次電池１６の外形が復元したときには電子機器１０への電力供給を再開させることができる。   As a result, the protection device 50b stops the power supply to the electronic device 10 when the secondary battery 16 expands in the same manner as the protection device 50a, and supplies the power to the electronic device 10 when the external shape of the secondary battery 16 is restored. It can be resumed.

尚、第２電極２２を外装体１２に埋め込むようにして設置すれば、二次電池１６の膨張により第２電極２２が破損することはない。   If the second electrode 22 is installed so as to be embedded in the exterior body 12, the second electrode 22 is not damaged by the expansion of the secondary battery 16.

次に、本発明に係る保護装置の第１の形態の第２変形例を図２（ｃ１）、（ｃ２）に示す。保護装置の第１の形態の第２変形例である保護装置５０ｃは、第１電極２０が二次電池１６に二次電池１６の中心から所定の距離だけ離れて設けられる。また所定の長さを有する棒状もしくは板状の第２電極２２が、その一端を第１電極２０と対向かつ接触させるとともに、もう一端でのみ二次電池１６に固定される。尚、第１電極２０と第２電極２２とには図示しないスイッチング機構が接続される。   Next, the 2nd modification of the 1st form of the protection device concerning the present invention is shown in Drawing 2 (c1) and (c2). In a protection device 50c, which is a second modification of the first form of protection device, the first electrode 20 is provided on the secondary battery 16 at a predetermined distance from the center of the secondary battery 16. In addition, a rod-like or plate-like second electrode 22 having a predetermined length has one end opposed to and in contact with the first electrode 20 and is fixed to the secondary battery 16 only at the other end. A switching mechanism (not shown) is connected to the first electrode 20 and the second electrode 22.

先ず、二次電池１６の外形に膨張が生じていない場合、図２（ｃ１）に示すように、第１電極２０と第２電極２２とは接触状態にあり、第１電極２０と第２電極２２とは電気的に導通している。   First, when the outer shape of the secondary battery 16 is not expanded, as shown in FIG. 2C1, the first electrode 20 and the second electrode 22 are in contact with each other, and the first electrode 20 and the second electrode 22 is electrically connected.

しかし、二次電池１６の外形が膨張した場合、図２（ｃ２）に示すように、第２電極２２における第１電極２０側の一端がこの二次電池１６の膨張により浮き上がり、第１電極２０と第２電極２２とが非接触の状態となる。これにより、第１電極２０と第２電極２２との導通は遮断される。   However, when the outer shape of the secondary battery 16 expands, one end of the second electrode 22 on the first electrode 20 side is lifted by the expansion of the secondary battery 16 as shown in FIG. And the second electrode 22 are not in contact with each other. Thereby, conduction between the first electrode 20 and the second electrode 22 is interrupted.

更に、二次電池１６の外形が復元したときには、図２（ｃ１）に示すように、第１電極２０と第２電極２２とは再度接触状態となり、第１電極２０と第２電極２２とは導通する。   Furthermore, when the outer shape of the secondary battery 16 is restored, as shown in FIG. 2C1, the first electrode 20 and the second electrode 22 are brought into contact again, and the first electrode 20 and the second electrode 22 are in contact with each other. Conduct.

第１電極２０及び第２電極２２に接続されるスイッチング機構は、この第１電極２０と第２電極２２との接触、非接触状態に伴う電気的導通、遮断に応じて、、保護装置５０ｂと同様の動作を行う。   The switching mechanism connected to the first electrode 20 and the second electrode 22 includes a protective device 50b in accordance with contact between the first electrode 20 and the second electrode 22, electrical conduction and disconnection associated with a non-contact state, The same operation is performed.

これにより、保護装置５０ｃは二次電池１６の外形膨張時には電子機器１０への電力供給を停止させ、二次電池１６の外形が復元したときには電子機器１０への電力供給を再開させることができる。   Thereby, the protective device 50c can stop the power supply to the electronic device 10 when the outer shape of the secondary battery 16 expands, and can restart the power supply to the electronic device 10 when the outer shape of the secondary battery 16 is restored.

尚、保護装置５０ｂ、５０ｃ及び、後述する保護装置５０ｆでは、二次電池１６が膨張していない通常時に第１電極２０と第２電極２２とが導通状態にあり、二次電池１６の外形膨張時に第１電極２０と第２電極２２とが遮断状態となるために、スイッチング機構の回路構成をより単純化することができる。また、保護装置５０ｂ、５０ｃ、５０ｆを二次電池１６からの電力供給の経路上に設ければ、これ自体がスイッチング機構を兼ねることもできる。   In the protective devices 50b, 50c and the protective device 50f described later, the first electrode 20 and the second electrode 22 are in a conductive state when the secondary battery 16 is not expanded, and the outer shape of the secondary battery 16 is expanded. Since the first electrode 20 and the second electrode 22 are sometimes cut off, the circuit configuration of the switching mechanism can be further simplified. Further, if the protection devices 50b, 50c, and 50f are provided on the power supply path from the secondary battery 16, the protection devices 50b, 50c, and 50f can also serve as a switching mechanism.

次に、本発明に係る保護装置の第２の形態を図３の部分拡大図を用いて説明する。   Next, a second embodiment of the protection device according to the present invention will be described with reference to a partially enlarged view of FIG.

図３（ａ１）、（ａ２）に示す本発明に係る第２の形態の保護装置５０ｄは、二次電池１６の側面側に設けられた第１電極２０と、外装体１２側に第１電極２０と対向するように設けられた第２電極２２と、第１電極２０と第２電極２２との間に設けられた弾性体２４と、図示しないスイッチング機構とを有している。そして、弾性体２４によって第１電極２０と第２電極２２とが所定の間隔を取るように保持される。   A protection device 50d according to the second embodiment of the present invention shown in FIGS. 3A1 and 3A2 includes a first electrode 20 provided on the side surface of the secondary battery 16 and a first electrode on the exterior body 12 side. 20, a second electrode 22 provided so as to face 20, an elastic body 24 provided between the first electrode 20 and the second electrode 22, and a switching mechanism (not shown). The first electrode 20 and the second electrode 22 are held by the elastic body 24 so as to have a predetermined interval.

尚、保護装置５０ｄでは弾性体２４を板バネとして、後述する保護装置５０ｅではスプリングとして、保護装置５０ｅでは円柱状のゴムとしてそれぞれ図示したが、用いる弾性体２４には特に限定は無く、金属製、樹脂製などのスプリング、板バネ、弓形バネ、線バネ、トーションスプリング等や、ゴム等の弾性を有する球形、円柱形、直方体などの弾性部材、その他周知のものを用いることができる。尚、弾性体２４に金属などの導電性を有する部材を用いる場合には、第１電極２０と第２電極２２とが常時導通状態にならないよう、少なくとも第１電極２０もしくは第２電極２２の接触部分には絶縁の被膜や絶縁体を挿入するなどして絶縁性を持たせなくてはならない。   In the protective device 50d, the elastic body 24 is illustrated as a leaf spring, the protective device 50e described later is illustrated as a spring, and the protective device 50e is illustrated as a cylindrical rubber. However, the elastic body 24 used is not particularly limited and is made of metal. It is possible to use a spring made of resin, a leaf spring, an arc spring, a wire spring, a torsion spring, etc., an elastic member having elasticity such as rubber, a cylindrical shape, a rectangular parallelepiped, or the like. In the case where a conductive member such as a metal is used for the elastic body 24, at least contact of the first electrode 20 or the second electrode 22 so that the first electrode 20 and the second electrode 22 are not always in a conductive state. The part must be made insulating by inserting an insulating film or insulator.

保護装置５０ｄは、二次電池１６の外形に膨張が生じていない場合、図３（ａ１）に示すように、第１電極２０と第２電極２２とは非接触の状態にある。しかし、二次電池１６が膨張した場合、この二次電池１６の膨張により第１電極２０が第２電極２２の方向に押し上げられることとなり、図３（ａ２）に示すように、第１電極２０と第２電極２２とが接触状態となる。これにより、第１電極２０と第２電極２２とは導通する。更に、二次電池１６の外形が復元したときには、図３（ａ１）に示すように、第１電極２０と第２電極２２とは再度非接触の状態となり、第１電極２０と第２電極２２との導通は遮断する。   In the protection device 50d, when the outer shape of the secondary battery 16 is not expanded, the first electrode 20 and the second electrode 22 are in a non-contact state as shown in FIG. However, when the secondary battery 16 expands, the first electrode 20 is pushed up in the direction of the second electrode 22 by the expansion of the secondary battery 16, and as shown in FIG. And the second electrode 22 are in contact with each other. Thereby, the first electrode 20 and the second electrode 22 are electrically connected. Further, when the outer shape of the secondary battery 16 is restored, as shown in FIG. 3A1, the first electrode 20 and the second electrode 22 are brought into a non-contact state again, and the first electrode 20 and the second electrode 22 are restored. Connection with is interrupted.

そして、第１電極２０及び第２電極２２に接続されるスイッチング機構は、この第１電極２０と第２電極２２との接触、非接触状態に伴う電気的導通、遮断に応じて、保護装置５０ａと同様の動作を行う。これにより、保護装置５０ｄは二次電池１６の外形膨張時には電子機器１０への電力供給を停止させ、二次電池１６の外形が復元したときには電子機器１０への電力供給を再開させることができる。   And the switching mechanism connected to the 1st electrode 20 and the 2nd electrode 22 is based on the contact with this 1st electrode 20 and the 2nd electrode 22, the electrical continuity in connection with a non-contact state, and interception, protection device 50a. The same operation is performed. Thereby, the protection device 50d can stop the power supply to the electronic device 10 when the outer shape of the secondary battery 16 expands, and can restart the power supply to the electronic device 10 when the outer shape of the secondary battery 16 is restored.

尚、保護装置５０ｄは、図３（ｂ１）、（ｂ２）に示す保護装置５０ｅように、第１電極２０と第２電極２２との中央部分に弾性体２４を設けても良い。   The protective device 50d may be provided with an elastic body 24 at the central portion between the first electrode 20 and the second electrode 22 as in the protective device 50e shown in FIGS. 3 (b1) and 3 (b2).

次に、本発明に係る保護装置の第２の形態の変形例を図３（ｃ１）、（ｃ２）に示す。図３（ｃ１）、（ｃ２）に示す保護装置５０ｆは、二次電池１６側に設けられその一端が二次電池１６の中心から所定の距離だけ離れると共に外装体１２の側に屈曲した所定の長さの第１電極２０と、外装体１２側に設けられた所定の長さを有する第２電極２２と、二次電池１６の略中心に位置し第１電極２０のもう一端と第２電極２２とで挟み込まれるように設けられた弾性体２４と、第２電極２２の略中央に位置する部分に設けられた絶縁性の突起物２６と、図示しないスイッチング機構とを有している。そして、弾性体２４によって第１電極２０の屈曲端と第２電極２２の一端とが接触するとともに、第１電極２０と第２電極２２とが保持されている。   Next, the modification of the 2nd form of the protection apparatus which concerns on this invention is shown to FIG.3 (c1), (c2). The protective device 50f shown in FIGS. 3C1 and 3C2 is provided on the secondary battery 16 side, and one end of the protective device 50f is separated from the center of the secondary battery 16 by a predetermined distance and bent toward the exterior body 12 side. The first electrode 20 having a length, the second electrode 22 having a predetermined length provided on the exterior body 12 side, the other end of the first electrode 20 located at the approximate center of the secondary battery 16, and the second electrode The elastic body 24 provided so that it may be pinched | interposed with 22, the insulating protrusion 26 provided in the part located in the approximate center of the 2nd electrode 22, and the switching mechanism which is not shown in figure. The bent end of the first electrode 20 and one end of the second electrode 22 are in contact with each other by the elastic body 24, and the first electrode 20 and the second electrode 22 are held.

先ず、二次電池１６の外形に膨張が生じていない場合、図３（ｃ１）に示すように、第１電極２０と第２電極２２とは接触状態にある。しかし、二次電池１６が膨張した場合、図３（ｃ２）に示すように、第１電極２０の弾性体２４側が第２電極２２の方向に押し上げられるとともに、第１電極２０の屈曲端が突起物２６を支点として二次電池１６の側に移動する。これにより、第１電極２０と第２電極２２とは非接触の状態となる。更に、二次電池１６の外形が復元したときには、図３（ｃ１）に示すように、第１電極２０と第２電極２２とは再度接触状態となる。   First, when the external shape of the secondary battery 16 is not expanded, the first electrode 20 and the second electrode 22 are in contact with each other as shown in FIG. However, when the secondary battery 16 expands, the elastic body 24 side of the first electrode 20 is pushed up toward the second electrode 22 and the bent end of the first electrode 20 protrudes as shown in FIG. The object 26 moves to the secondary battery 16 side as a fulcrum. Thereby, the 1st electrode 20 and the 2nd electrode 22 will be in a non-contact state. Further, when the outer shape of the secondary battery 16 is restored, as shown in FIG. 3C1, the first electrode 20 and the second electrode 22 are brought into contact again.

そして、第１電極２０及び第２電極２２に接続されるスイッチング機構は、この第１電極２０と第２電極２２との接触、非接触状態に伴う電気的導通、遮断に応じて、保護装置５０ｂと同様の動作を行う。これにより、保護装置５０ｆは二次電池１６の外形膨張時には電子機器１０への電力供給を停止させ、二次電池１６の外形が復元したときには電子機器１０への電力供給を再開させることができる。   And the switching mechanism connected to the 1st electrode 20 and the 2nd electrode 22 is based on the contact with this 1st electrode 20 and the 2nd electrode 22, the electrical conduction according to a non-contact state, and interception, protection device 50b. The same operation is performed. Thereby, the protection device 50f can stop the power supply to the electronic device 10 when the outer shape of the secondary battery 16 expands, and can restart the power supply to the electronic device 10 when the outer shape of the secondary battery 16 is restored.

上記の保護装置５０ｄ、５０ｅ、５０ｆでは、二次電池１６の外形膨張に際して、弾性体２４に第１電極及び第２電極の設置方向への復元力が生じる。このため、二次電池１６の外形が復元したときには、この弾性体２４の復元力によって第１電極２０、第２電極２２を速やかに膨張前の位置に戻すことができる。また、弾性体２４が存在することで、振動などによる保護装置の誤作動を防止することができる。   In the protection devices 50d, 50e, and 50f, when the secondary battery 16 expands in shape, a restoring force is generated in the elastic body 24 in the installation direction of the first electrode and the second electrode. Therefore, when the outer shape of the secondary battery 16 is restored, the first electrode 20 and the second electrode 22 can be quickly returned to the positions before expansion by the restoring force of the elastic body 24. Further, the presence of the elastic body 24 can prevent malfunction of the protective device due to vibration or the like.

次に、本発明に係る保護装置の第３の形態を図４の部分拡大図を用いて説明する。   Next, a third embodiment of the protection device according to the present invention will be described with reference to a partially enlarged view of FIG.

図４に示す本発明に係る第３の形態の保護装置５０ｇは、二次電池１６と外装体１２との間に、開閉器２８が設けられる。尚、開閉器２８としては開閉器２８の押圧端２８ａが押された状態のときのみにオフ（オン）するような機構のものが用いられる。   In the protection device 50g according to the third embodiment of the present invention shown in FIG. 4, a switch 28 is provided between the secondary battery 16 and the exterior body 12. As the switch 28, a mechanism that is turned off only when the pressing end 28a of the switch 28 is pressed is used.

そして保護装置５０ｇの開閉器２８は、二次電池１６の外形に膨張が生じていない場合には、図４（ａ１）に示すように、押圧端２８ａが押されていないオン状態（閉状態）にある。しかし、二次電池１６が膨張した場合、図４（ａ２）に示すように、二次電池１６の膨張により押圧端２８ａが押されて開閉器２８がオフ状態（開状態）となる。更に、二次電池１６の外形が復元したときには、図４（ａ１）に示すように、開閉器２８は押圧端２８ａが押されていないオン状態（閉状態）となる。   The switch 28 of the protection device 50g is in an on state (closed state) where the pressing end 28a is not pressed as shown in FIG. 4 (a1) when the outer shape of the secondary battery 16 is not expanded. It is in. However, when the secondary battery 16 expands, as shown in FIG. 4A2, the pressing end 28a is pushed by the expansion of the secondary battery 16, and the switch 28 is turned off (open state). Furthermore, when the outer shape of the secondary battery 16 is restored, the switch 28 is in an on state (closed state) in which the pressing end 28a is not pressed, as shown in FIG. 4 (a1).

保護装置５０ｇでは、上記のように動作する開閉器２８を二次電池１６からの電力供給の経路上に設けることで、二次電池１６の外形膨張時には電子機器１０への電力供給を停止させ、二次電池１６の外形が復元したときには電子機器１０への電力供給を再開させることができる。この場合、保護装置５０ｇにはスイッチング機構が必要なく、また電力供給の停止、再開を開閉器２８が行うため高い動作信頼性を得る事ができる。尚、開閉器２８にタクトスイッチを用いる場合には、タクトスイッチのオン、オフによって電力供給を停止、再開するようなスイッチング機構を別に設けることが好ましい。またこの場合、タクトスイッチのオン、オフは前述の記載と逆転しても構わない。   In the protective device 50g, by providing the switch 28 that operates as described above on the path of power supply from the secondary battery 16, power supply to the electronic device 10 is stopped when the secondary battery 16 expands, When the outer shape of the secondary battery 16 is restored, the power supply to the electronic device 10 can be resumed. In this case, the protective device 50g does not require a switching mechanism, and since the switch 28 stops and restarts the power supply, high operational reliability can be obtained. When a tact switch is used for the switch 28, it is preferable to provide a separate switching mechanism that stops and restarts power supply when the tact switch is turned on / off. In this case, turning on and off of the tact switch may be reversed from the above description.

また、上記の保護装置５０ｇでは保護装置の電極が露出しないため、ゴミや埃による保護装置の誤動作を防止することができる。   Further, since the electrodes of the protective device are not exposed in the protective device 50g, malfunction of the protective device due to dust or dirt can be prevented.

次に、本発明に係る保護装置の変形例を図５の部分拡大図を用いて説明する。   Next, a modification of the protection device according to the present invention will be described with reference to a partially enlarged view of FIG.

図５（ａ）に示す保護装置５０ｈは、二次電池１６の側に電子機器１０の電子回路に悪影響を及ぼさない程度の磁力を有する磁性体３０が設けられ、磁性体３０に対向する外装体１２の側に磁性体３０の磁力（図５（ａ）中の破線は磁力線を示す）の多少に応じて出力電圧が変化するホール素子３２が設けられる。そして、二次電池１６の膨張により磁性体３０とホール素子３２との距離が変化すると、ホール素子３２が検知する磁力が増減し、ホール素子３２の出力電圧が変化する。この出力変化をスイッチング機構が読み取って電子機器１０への電力供給の停止、再開を行う構成である。尚、磁性体３０とホール素子３２の設置位置は入れ替えても良い。   A protective device 50 h shown in FIG. 5A is provided with a magnetic body 30 having a magnetic force that does not adversely affect the electronic circuit of the electronic device 10 on the side of the secondary battery 16. The Hall element 32 whose output voltage changes according to the degree of the magnetic force of the magnetic body 30 (the broken line in FIG. 5A indicates the lines of magnetic force) is provided on the 12 side. When the distance between the magnetic body 30 and the Hall element 32 changes due to the expansion of the secondary battery 16, the magnetic force detected by the Hall element 32 increases or decreases, and the output voltage of the Hall element 32 changes. This is a configuration in which the switching mechanism reads the output change and stops and restarts the power supply to the electronic device 10. The installation positions of the magnetic body 30 and the hall element 32 may be interchanged.

また、図５（ｂ）に示す保護装置５０ｉは、二次電池１６と外装体１２との間に圧電素子３４が設けられ、二次電池１６の膨張により圧電素子３４に加わる圧力が変化することで、圧電素子３４に生じる電位差が変化し、この変化をスイッチング機構が読み取って電子機器１０への電力供給の停止、再開を行う構成である。尚、圧電素子３４と二次電池１６もしくは圧電素子３４と外装体１２の間には保護弾性体３６を設けても良い。   5B, the piezoelectric element 34 is provided between the secondary battery 16 and the exterior body 12, and the pressure applied to the piezoelectric element 34 changes due to the expansion of the secondary battery 16. Thus, the potential difference generated in the piezoelectric element 34 changes, and the switching mechanism reads this change to stop and restart the power supply to the electronic device 10. A protective elastic body 36 may be provided between the piezoelectric element 34 and the secondary battery 16 or between the piezoelectric element 34 and the exterior body 12.

また、図５（ｃ）に示す保護装置５０ｊは、二次電池１６の側に反射板３８が設けられ、外装体１２の側に反射板３８に向かってレーザ光を照射するレーザ光源４０と、反射板３８からの反射光を受光する受光素子４２とが設けられる。そして、二次電池１６の膨張により受光素子４２が反射光の光路長の変化もしくは反射光の反射角度などを検出しスイッチング機構に出力する。スイッチング機構はこの出力変化を読み取って電子機器１０への電力供給の停止、再開を行う構成である。尚、反射板３８とレーザ光源４０及び受光素子４２の設置位置は入れ替えても良い他、レーザ光源４０と受光素子４２を別の位置に設け、ミラー、レンズなどの光学部品を介してレーザ光の照射及び受光を行う構成としても良い。   Further, the protection device 50j shown in FIG. 5C includes a laser light source 40 provided with a reflection plate 38 on the secondary battery 16 side, and irradiating laser light toward the reflection plate 38 on the exterior body 12 side, A light receiving element 42 that receives reflected light from the reflecting plate 38 is provided. Then, as the secondary battery 16 expands, the light receiving element 42 detects a change in the optical path length of the reflected light or a reflection angle of the reflected light and outputs the detected light to the switching mechanism. The switching mechanism is configured to read and stop the power supply to the electronic device 10 by reading this output change. The installation positions of the reflector 38, the laser light source 40, and the light receiving element 42 may be interchanged, and the laser light source 40 and the light receiving element 42 are provided at different positions so that the laser light can be transmitted via optical components such as a mirror and a lens. It is good also as a structure which performs irradiation and light reception.

また、図５（ｄ）に示す保護装置５０ｋは、二次電池１６の側に第３電極４４を設け、外装体１２の側に第４電極４６を設け、第３電極４４と第４電極４６との間に所定の電圧を印加するとともに、二次電池１６の膨張による第３電極４４と第４電極４６との間の静電容量の変化をスイッチング機構が読み取って電子機器１０への電力供給の停止、再開を行う構成である。   5D, the third electrode 44 is provided on the secondary battery 16 side, the fourth electrode 46 is provided on the exterior body 12, and the third electrode 44 and the fourth electrode 46 are provided. A predetermined voltage is applied between the switching device and the switching mechanism reads a change in capacitance between the third electrode 44 and the fourth electrode 46 due to expansion of the secondary battery 16, and power is supplied to the electronic device 10. Is configured to stop and restart.

また、図５（ｅ）に示す保護装置５０Ｌは、二次電池１６の側に遮蔽物４８を設け、外装体１２の側に凹状センサ４９を設け、二次電池１６の膨張に伴い遮蔽物４８が凹状センサ４９の凹部側に移動することによる、凹部側壁内面間のレーザ光の遮蔽もしくは静電容量の変化もしくは磁力の変化等をスイッチング機構が読み取って電子機器１０への電力供給の停止、再開を行う構成である。尚、遮蔽物４８と凹状センサ４９の設置位置は入れ替えても良い。   In addition, the protection device 50L shown in FIG. 5E is provided with a shield 48 on the secondary battery 16 side and a concave sensor 49 on the exterior body 12 side. As the secondary battery 16 expands, the shield 48L is provided. Is moved to the concave side of the concave sensor 49, and the switching mechanism reads the shielding of the laser beam between the inner surfaces of the concave side walls, the change in capacitance or the change in magnetic force, etc. to stop and restart the power supply to the electronic device 10 It is the structure which performs. The installation positions of the shield 48 and the concave sensor 49 may be switched.

保護装置５０ｈ〜５０Ｌでは、二次電池１６の外形膨張の程度によって各出力が変化するため、電子機器１０への電力供給の停止、再開に関わる閾値を比較的自由に設定することができる。   In the protection devices 50h to 50L, each output varies depending on the degree of external expansion of the secondary battery 16, and therefore a threshold value related to stopping and resuming power supply to the electronic device 10 can be set relatively freely.

また、保護装置５０ｈ〜５０Ｌは、比較的大きなスペースを確保可能な大型の電子機器１０や二次電池１６を動力源にもつ電気自動車などの移動装置に特に好適である。   The protection devices 50h to 50L are particularly suitable for a mobile device such as a large-sized electronic device 10 capable of securing a relatively large space or an electric vehicle having a secondary battery 16 as a power source.

尚、保護装置５０ｈ〜５０Ｌは電子機器１０への電力供給の停止が行われても、保護装置５０ｈ〜５０Ｌを稼動させるための別電源もしくは二次電池１６から分岐した別の電源系路が必要となる。   In addition, even if the power supply to the electronic device 10 is stopped, the protection devices 50h to 50L require a separate power source for operating the protection devices 50h to 50L or another power supply path branched from the secondary battery 16. It becomes.

また、本発明に係る保護装置には上記の構成以外の、接近センサ、磁気センサ、変位センサ、位置センサ、及び所定の周波数の電気信号を用いてその電気信号が二次電池１６の外形膨張によって変化するようなセンサ、なども用いることができる。   Further, the protective device according to the present invention uses an proximity sensor, a magnetic sensor, a displacement sensor, a position sensor, and an electrical signal of a predetermined frequency other than the above configuration, and the electrical signal is generated by the expansion of the secondary battery 16. Sensors that change can be used.

以上のことから、本発明に係る保護装置は二次電池の外形が膨張すると、二次電池からの電力供給の異常の有無に関わらず自動的に電子機器への電力供給を停止する。このため、ユーザが何らかの異常を感知して早期に修理や退避などの適切な処置を行う事ができる。更に、二次電池の膨張の原因によっては、二次電池の破裂や電子回路に対する損傷を未然に防ぐことができる。   From the above, when the outer shape of the secondary battery expands, the protection device according to the present invention automatically stops the power supply to the electronic device regardless of whether there is an abnormality in the power supply from the secondary battery. Therefore, the user can detect an abnormality and take appropriate measures such as repair or evacuation at an early stage. Furthermore, depending on the cause of the expansion of the secondary battery, it is possible to prevent the secondary battery from bursting or damaging the electronic circuit.

また、本発明に係る保護装置は二次電池の外形が復元すると、自動的に電子回路への電力供給を再開させる。このため、二次電池の短期的かつ非継続的な比較的問題の少ない膨張に際しては、不必要な修理などの過剰な処置を回避して電子機器をそのまま継続して使用することができる。ただし、短期的な二次電池の膨張が頻発する場合には、それに応じて電子機器の停止状態も頻発するためユーザは異常を感知して適切な処置を行う事ができる。   Further, the protection device according to the present invention automatically restarts the power supply to the electronic circuit when the external shape of the secondary battery is restored. For this reason, when the secondary battery expands in a short-term and non-continuous manner with relatively few problems, it is possible to avoid excessive treatment such as unnecessary repair and continue to use the electronic device as it is. However, when the expansion of the secondary battery in the short term frequently occurs, the electronic device is also frequently stopped, so that the user can detect an abnormality and take appropriate measures.

尚、上記の保護装置の第１電極２０、第２電極２２、開閉器２８、及び保護装置５０ｈ〜５０Ｌに用いられる各部材は二次電池１６もしくは外装体１２に直接、粘着テープ、接着剤などで固着しても良いし、絶縁部材、板状部材を介して設置しても良い。ただし、保護装置５０ａ、５０ｃにおいては、用いる板状部材は容易に湾曲可能なフレキシブルなものが好ましい。また、上記の保護装置の第１電極２０、第２電極２２、開閉器２８、及び保護装置５０ｈ〜５０Ｌに用いられる各部材とスイッチング機構等との間で取り交わされる信号は、直流信号、交流信号、及び所定の周波数を有するパルス信号等を用いることができる。   Each member used for the first electrode 20, the second electrode 22, the switch 28, and the protection devices 50h to 50L of the protection device is directly attached to the secondary battery 16 or the exterior body 12, such as an adhesive tape or an adhesive. It may be fixed by using an insulating member or a plate-like member. However, in the protection devices 50a and 50c, the plate-like member to be used is preferably a flexible member that can be easily bent. In addition, the signals exchanged between the first electrode 20, the second electrode 22, the switch 28, and each member used for the protection devices 50 h to 50 L and the switching mechanism etc. of the protection device are a DC signal, an AC A signal, a pulse signal having a predetermined frequency, or the like can be used.

尚、本例においては電子機器として携帯電話機の携帯型予備充電器を例に用いて説明を行ったが、特にこれに限定する必要は無く、二次電池を備えた携帯電話機、モバイル型パーソナルコンピュータ、ＰＤＡ、携帯型ＭＤプレーヤ、携帯型ＣＤプレーヤ、携帯型ＤＶＤプレーヤ、ハードディスクもしくは不揮発性メモリを備えた携帯音響機器、携帯電話機以外の携帯型充電器、その他の電子機器、更には電気自動車（ハイブリッド車を含む）などの移動装置の動力源としての二次電池を制御するための電子機器に対しても適用が可能な他、本発明は本発明の要旨を逸脱しない範囲で変更して実施することが可能である。   In this example, the description has been given by taking the portable precharger of the cellular phone as an example of the electronic device. However, the present invention is not particularly limited to this, and the cellular phone including the secondary battery and the mobile personal computer are not limited thereto. , PDAs, portable MD players, portable CD players, portable DVD players, portable audio equipment with a hard disk or nonvolatile memory, portable chargers other than mobile phones, other electronic devices, and electric vehicles (hybrids) The present invention can be applied to an electronic device for controlling a secondary battery as a power source of a mobile device such as a car), and the present invention is modified and implemented without departing from the gist of the present invention. It is possible.

本発明に係る保護装置を携帯型予備充電器に適用した場合の概略図である。It is the schematic at the time of applying the protection apparatus which concerns on this invention to a portable precharger. 本発明に係る保護装置の第１の形態を示す部分拡大図である。It is the elements on larger scale which show the 1st form of the protection apparatus which concerns on this invention. 本発明に係る保護装置の第２の形態を示す部分拡大図である。It is the elements on larger scale which show the 2nd form of the protection apparatus which concerns on this invention. 本発明に係る保護装置の第３の形態を示す部分拡大図である。It is the elements on larger scale which show the 3rd form of the protection apparatus which concerns on this invention. 本発明に係る保護装置の変形例を示す部分拡大図である。It is the elements on larger scale which show the modification of the protection apparatus which concerns on this invention.

符号の説明Explanation of symbols

１０ 電子機器
１６ 二次電池
２０ 第１電極
２２ 第２電極
２４ 弾性体
２８ 開閉器
５０、５０ａ〜５０Ｌ 保護装置 10 Electronic equipment
16 Secondary battery
20 First electrode
22 Second electrode
24 Elastic body
28 Switch
50, 50a-50L Protection device

Claims (5)

二次電池からの電力供給により稼動する電子機器に設置され、
二次電池の外形膨張に伴い前記電子機器への電力供給を自動的に停止するとともに、
二次電池の外形の復元に伴い前記電子機器への電力供給を自動的に再開することを特徴とする保護装置。 Installed in electronic equipment that operates by supplying power from secondary batteries,
While automatically stopping the power supply to the electronic device with the expansion of the secondary battery,
A protection device, wherein power supply to the electronic device is automatically restarted with the restoration of the outer shape of the secondary battery. 二次電池の側面側に設けられた第１電極と
第１電極と対向するように設けられた第２電極とが、
二次電池の外形の膨張もしくは復元によって非接触状態もしくは接触状態となることにより、
電子機器への電力供給を電気的に停止もしくは再開することを特徴とする請求項１記載の保護装置。 A first electrode provided on the side surface of the secondary battery and a second electrode provided to face the first electrode,
By becoming non-contact state or contact state due to expansion or restoration of the external shape of the secondary battery,
The protection device according to claim 1, wherein power supply to the electronic device is electrically stopped or restarted. 二次電池の外形膨張時に
第１電極及び第２電極の設置方向に復元力を生じる弾性体を設けたことを特徴とする請求項２記載の保護装置。 The protection device according to claim 2, further comprising an elastic body that generates a restoring force in the installation direction of the first electrode and the second electrode when the secondary battery expands. 二次電池の側面側に設けられた開閉器が、
二次電池の外形の膨張もしくは復元によって開閉することにより、
電子機器への電力供給を停止もしくは再開することを特徴とする請求項１記載の保護装置。 A switch provided on the side of the secondary battery
By opening and closing by expansion or restoration of the external shape of the secondary battery,
The protection device according to claim 1, wherein power supply to the electronic device is stopped or restarted. 第１電極を二次電池の側面に固定したことを特徴とする請求項２または請求項３記載の保護装置。 The protection device according to claim 2 or 3, wherein the first electrode is fixed to a side surface of the secondary battery.
JP2007068054A 2007-03-16 2007-03-16 Protective device Expired - Fee Related JP5048366B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2007068054A JP5048366B2 (en) 2007-03-16 2007-03-16 Protective device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2007068054A JP5048366B2 (en) 2007-03-16 2007-03-16 Protective device

Publications (2)

Publication Number Publication Date
JP2008234840A true JP2008234840A (en) 2008-10-02
JP5048366B2 JP5048366B2 (en) 2012-10-17

Family

ID=39907422

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2007068054A Expired - Fee Related JP5048366B2 (en) 2007-03-16 2007-03-16 Protective device

Country Status (1)

Country Link
JP (1) JP5048366B2 (en)

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008251437A (en) * 2007-03-30 2008-10-16 Tdk Corp Power supply device and expansion detection method of electrochemical element
JP2012114078A (en) * 2010-11-19 2012-06-14 General Electric Co <Ge> Device and method of determining safety in battery pack
KR101351427B1 (en) 2010-02-12 2014-01-14 주식회사 엘지화학 Apparatus for monitoring and controlling swelling of secondary cell
WO2015151331A1 (en) * 2014-03-31 2015-10-08 東洋ゴム工業株式会社 Deformation-detecting sensor for sealed secondary battery
WO2015151332A1 (en) * 2014-03-31 2015-10-08 東洋ゴム工業株式会社 Deformation-detecting sensor for sealed secondary battery
WO2016002454A1 (en) * 2014-06-30 2016-01-07 東洋ゴム工業株式会社 Sensor for detecting deformation of sealed secondary battery, sealed secondary battery, and method for detecting deformation of sealed secondary battery
WO2016002295A1 (en) * 2014-06-30 2016-01-07 東洋ゴム工業株式会社 Method for determining abnormality in battery pack, and device for determining abnormality in battery pack
JP2016504899A (en) * 2013-10-29 2016-02-12 シャオミ・インコーポレイテッド Electronic device, battery protection method, facility, program, and recording medium
JP2016063692A (en) * 2014-09-19 2016-04-25 株式会社デンソーウェーブ Mobile terminal
JP2016099319A (en) * 2014-11-26 2016-05-30 東洋ゴム工業株式会社 Monitoring sensor for sealed secondary battery, sealed secondary battery, and monitoring method for sealed secondary battery
WO2016163470A1 (en) * 2015-04-09 2016-10-13 オリンパス株式会社 Medical device
WO2016163473A1 (en) * 2015-04-09 2016-10-13 オリンパス株式会社 Battery assembly for medical device, and medical device unit
TWI556492B (en) * 2014-11-20 2016-11-01 Toyo Tire & Rubber Co Method for manufacturing deformation detecting sensor of sealed secondary battery
TWI556491B (en) * 2014-11-25 2016-11-01 Toyo Tire & Rubber Co Deformation detection sensor for closed type secondary battery
US20170047621A1 (en) * 2014-06-27 2017-02-16 Toyo Tire & Rubber Co., Ltd. Monitoring sensor for sealed secondary battery, sealed secondary battery, and monitoring method for sealed secondary battery
CN106463795A (en) * 2014-06-27 2017-02-22 东洋橡胶工业株式会社 Deformation detection sensor for sealed secondary battery, sealed secondary battery, and deformation detection method for sealed secondary battery
US9660301B2 (en) 2013-10-29 2017-05-23 Xiaomi Inc. Methods and devices for battery protection
CN114122549A (en) * 2021-11-26 2022-03-01 歌尔科技有限公司 Battery bulge detection method and device and computer readable storage medium
JP2022549099A (en) * 2019-11-20 2022-11-24 エルジー エナジー ソリューション リミテッド Apparatus and method for detecting swelling of battery module

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101770332B1 (en) * 2014-07-09 2017-09-05 주식회사 엘지화학 Secondary Battery Pack with Self Discharge Circuit

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10214612A (en) * 1997-01-30 1998-08-11 Fuji Elelctrochem Co Ltd Secondary battery equipped with safety mechanism
JP2001243991A (en) * 2000-02-28 2001-09-07 Japan Storage Battery Co Ltd Non-aqueous electrolyte battery device and battery pack
JP2002093399A (en) * 2000-09-14 2002-03-29 Alps Electric Co Ltd Circuit-breaking element for battery and its manufacturing method
JP2002117911A (en) * 2000-10-06 2002-04-19 Nec Mobile Energy Kk Battery mounted apparatus
JP2003059484A (en) * 2001-08-10 2003-02-28 Nec Corp Battery, its protection method, and its protection circuit
JP2004039512A (en) * 2002-07-05 2004-02-05 Japan Storage Battery Co Ltd Battery
JP2006352998A (en) * 2005-06-15 2006-12-28 Nec Tokin Corp Battery pack

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10214612A (en) * 1997-01-30 1998-08-11 Fuji Elelctrochem Co Ltd Secondary battery equipped with safety mechanism
JP2001243991A (en) * 2000-02-28 2001-09-07 Japan Storage Battery Co Ltd Non-aqueous electrolyte battery device and battery pack
JP2002093399A (en) * 2000-09-14 2002-03-29 Alps Electric Co Ltd Circuit-breaking element for battery and its manufacturing method
JP2002117911A (en) * 2000-10-06 2002-04-19 Nec Mobile Energy Kk Battery mounted apparatus
JP2003059484A (en) * 2001-08-10 2003-02-28 Nec Corp Battery, its protection method, and its protection circuit
JP2004039512A (en) * 2002-07-05 2004-02-05 Japan Storage Battery Co Ltd Battery
JP2006352998A (en) * 2005-06-15 2006-12-28 Nec Tokin Corp Battery pack

Cited By (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008251437A (en) * 2007-03-30 2008-10-16 Tdk Corp Power supply device and expansion detection method of electrochemical element
KR101351427B1 (en) 2010-02-12 2014-01-14 주식회사 엘지화학 Apparatus for monitoring and controlling swelling of secondary cell
JP2012114078A (en) * 2010-11-19 2012-06-14 General Electric Co <Ge> Device and method of determining safety in battery pack
JP2016504899A (en) * 2013-10-29 2016-02-12 シャオミ・インコーポレイテッド Electronic device, battery protection method, facility, program, and recording medium
US9660301B2 (en) 2013-10-29 2017-05-23 Xiaomi Inc. Methods and devices for battery protection
EP3128573A4 (en) * 2014-03-31 2017-11-22 Toyo Tire & Rubber Co., Ltd. Deformation-detecting sensor for sealed secondary battery
KR101817457B1 (en) * 2014-03-31 2018-01-10 도요 고무 고교 가부시키가이샤 Deformation-detecting sensor for sealed secondary battery
US10312555B2 (en) 2014-03-31 2019-06-04 Toyo Tire Corporation Deformation detecting sensor for sealed secondary battery
CN106165145A (en) * 2014-03-31 2016-11-23 东洋橡胶工业株式会社 Enclosed secondary battery deformation detection sensor
EP3128600A4 (en) * 2014-03-31 2017-10-11 Toyo Tire & Rubber Co., Ltd. Deformation-detecting sensor for sealed secondary battery
KR101775863B1 (en) * 2014-03-31 2017-09-06 도요 고무 고교 가부시키가이샤 Deformation-detecting sensor for sealed secondary battery
WO2015151332A1 (en) * 2014-03-31 2015-10-08 東洋ゴム工業株式会社 Deformation-detecting sensor for sealed secondary battery
JPWO2015151332A1 (en) * 2014-03-31 2017-04-13 東洋ゴム工業株式会社 Deformation detection sensor for sealed secondary battery
JPWO2015151331A1 (en) * 2014-03-31 2017-04-13 東洋ゴム工業株式会社 Deformation detection sensor for sealed secondary battery
WO2015151331A1 (en) * 2014-03-31 2015-10-08 東洋ゴム工業株式会社 Deformation-detecting sensor for sealed secondary battery
CN106165187A (en) * 2014-03-31 2016-11-23 东洋橡胶工业株式会社 Enclosed secondary battery deformation detection sensor
CN106463796A (en) * 2014-06-27 2017-02-22 东洋橡胶工业株式会社 Monitoring sensor for sealed secondary battery, sealed secondary battery, and monitoring method for sealed secondary battery
CN106463795A (en) * 2014-06-27 2017-02-22 东洋橡胶工业株式会社 Deformation detection sensor for sealed secondary battery, sealed secondary battery, and deformation detection method for sealed secondary battery
US10122050B2 (en) 2014-06-27 2018-11-06 Toyo Tire & Rubber Co., Ltd. Deformation detection sensor for sealed secondary battery, sealed secondary battery, and deformation detection method for sealed secondary battery
US20170047621A1 (en) * 2014-06-27 2017-02-16 Toyo Tire & Rubber Co., Ltd. Monitoring sensor for sealed secondary battery, sealed secondary battery, and monitoring method for sealed secondary battery
US10230136B2 (en) * 2014-06-27 2019-03-12 Toyo Tire Corporation Monitoring sensor including a polymer matrix for monitoring a sealed secondary battery, sealed secondary battery including the monitoring sensor, and monitoring method for sealed secondary battery
WO2016002295A1 (en) * 2014-06-30 2016-01-07 東洋ゴム工業株式会社 Method for determining abnormality in battery pack, and device for determining abnormality in battery pack
WO2016002454A1 (en) * 2014-06-30 2016-01-07 東洋ゴム工業株式会社 Sensor for detecting deformation of sealed secondary battery, sealed secondary battery, and method for detecting deformation of sealed secondary battery
JPWO2016002454A1 (en) * 2014-06-30 2017-04-27 東洋ゴム工業株式会社 Deformation detection sensor for sealed secondary battery, sealed secondary battery, and deformation detection method for sealed secondary battery
CN106415880A (en) * 2014-06-30 2017-02-15 东洋橡胶工业株式会社 Sensor for detecting deformation of sealed secondary battery, sealed secondary battery, and method for detecting deformation of sealed secondary battery
JP2016027539A (en) * 2014-06-30 2016-02-18 東洋ゴム工業株式会社 Abnormality determining method and device for battery pack
JP2016063692A (en) * 2014-09-19 2016-04-25 株式会社デンソーウェーブ Mobile terminal
TWI556492B (en) * 2014-11-20 2016-11-01 Toyo Tire & Rubber Co Method for manufacturing deformation detecting sensor of sealed secondary battery
CN106716052A (en) * 2014-11-20 2017-05-24 东洋橡胶工业株式会社 Method for manufacturing displacement detection sensor for sealed-type secondary battery
CN106716707A (en) * 2014-11-25 2017-05-24 东洋橡胶工业株式会社 Sensor for detecting deformation of sealed secondary battery
TWI556491B (en) * 2014-11-25 2016-11-01 Toyo Tire & Rubber Co Deformation detection sensor for closed type secondary battery
KR20170066610A (en) * 2014-11-26 2017-06-14 도요 고무 고교 가부시키가이샤 Sensor for monitoring sealed secondary battery, sealed secondary battery, and method for monitoring sealed secondary battery
JP2016099319A (en) * 2014-11-26 2016-05-30 東洋ゴム工業株式会社 Monitoring sensor for sealed secondary battery, sealed secondary battery, and monitoring method for sealed secondary battery
WO2016084620A1 (en) * 2014-11-26 2016-06-02 東洋ゴム工業株式会社 Sensor for monitoring sealed secondary battery, sealed secondary battery, and method for monitoring sealed secondary battery
US10094884B2 (en) 2014-11-26 2018-10-09 Toyo Tire & Rubber Co., Ltd. Sensor including a polymer matrix for monitoring sealed secondary battery, sealed secondary battery including the monitoring sensor, and method for monitoring sealed secondary battery
CN106662425A (en) * 2014-11-26 2017-05-10 东洋橡胶工业株式会社 Sensor for monitoring sealed secondary battery, sealed secondary battery, and method for monitoring sealed secondary battery
WO2016163470A1 (en) * 2015-04-09 2016-10-13 オリンパス株式会社 Medical device
WO2016163473A1 (en) * 2015-04-09 2016-10-13 オリンパス株式会社 Battery assembly for medical device, and medical device unit
JP2022549099A (en) * 2019-11-20 2022-11-24 エルジー エナジー ソリューション リミテッド Apparatus and method for detecting swelling of battery module
JP7306645B2 (en) 2019-11-20 2023-07-11 エルジー エナジー ソリューション リミテッド Apparatus and method for detecting swelling of battery module
CN114122549A (en) * 2021-11-26 2022-03-01 歌尔科技有限公司 Battery bulge detection method and device and computer readable storage medium

Also Published As

Publication number Publication date
JP5048366B2 (en) 2012-10-17

Similar Documents

Publication Publication Date Title
JP5048366B2 (en) Protective device
JP5785213B2 (en) Safety device and protection method for secondary battery for electric vehicle using switch
JP5352014B2 (en) Power supply
JP6071638B2 (en) Small electric apparatus provided with non-contact charging device and non-contact charging system
KR20180064051A (en) Overcharge safety device
JP2006352998A (en) Battery pack
WO2012136171A2 (en) Charging and discharging management device and mobile terminal
KR102425827B1 (en) Battery module
JPH09223488A (en) Battery holder
JP6111856B2 (en) Power storage device
JP2001185124A (en) Battery with pressure sensitive current breaker mechanism
KR20090063839A (en) Apparatus for protecting battery from over-charge for vehicle
JP3564375B2 (en) Instantaneous interruption detection device for connection terminals
KR100572703B1 (en) Battery having safety device
CN112039100A (en) Energy storage device with black start function and black start method
JP2010086823A (en) Plug socket device
CN111971568A (en) Diagnostic device, power storage device, and diagnostic method
WO2024009839A1 (en) Power storage device
JP2015099669A (en) Power storage device
JP2017112762A (en) Power supply system and power conversion device
CN211744059U (en) System for realizing safe butt joint with charging device
WO2021039482A1 (en) Protective device, electricity storage device, and method for reducing contact resistance of relay
US20230411093A1 (en) Relay control device
KR20100005945A (en) Apparatus for preventing explosion by high temperature of battery pack
WO2022254978A1 (en) Electricity storage device, and failure diagnosis method

Legal Events

Date Code Title Description
A711 Notification of change in applicant

Free format text: JAPANESE INTERMEDIATE CODE: A711

Effective date: 20090323

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A821

Effective date: 20090323

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20100114

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20120601

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20120613

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20120706

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20120719

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20150727

Year of fee payment: 3

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

LAPS Cancellation because of no payment of annual fees