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1. JP2021191230 - 保護回路

官庁
日本
出願番号 2021090220
出願日 28.05.2021
公開番号 2021191230
公開日 13.12.2021
公報種別 A
IPC
H02H 7/18
H電気
02電力の発電,変換,配電
H非常保護回路装置
7特定の電気機械または装置,またはケーブルあるいは線路系統の区間保護に特に適用され,正常な動作状態からの異常変化の場合に自動スイッチングを行なわせる非常保護回路装置(特殊な機械または装置と保護装置との構造的結合および自動断路を有しない保護装置は,機械または装置に関連するサブクラスを参照)
18バッテリーのためのもの;蓄電池のためのもの
CPC
H01H 85/11
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
85Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
02Details
04Fuses, i.e. expendable parts of the protective device, e.g. cartridges
05Component parts thereof
055Fusible members
08characterised by the shape or form of the fusible member
11with applied local area of a metal which, on melting, forms a eutectic with the main material of the fusible member, i.e. M-effect devices
H02H 7/18
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
7Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
18for batteries; for accumulators
H02J 7/00
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
7Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
H01M 10/48
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
42Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
48Accumulators combined with arrangements for measuring, testing or indicating condition, e.g. level or density of the electrolyte
H01M 10/44
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
42Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
44Methods for charging or discharging
H01H 37/76
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
37Thermally-actuated switches
74Switches in which only the opening movement or only the closing movement of a contact is effected by heating or cooling
76Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material
出願人 DEXERIALS CORP
デクセリアルズ株式会社
発明者 YONEDA YOSHIHIRO
米田 吉弘
代理人 田▲崎▼ 聡
荒 則彦
細川 文広
松本 裕幸
優先権情報 2020094274 29.05.2020 JP
発明の名称
(EN) PROTECTION CIRCUIT
(JA) 保護回路
要約
(EN)

PROBLEM TO BE SOLVED: To provide a protection circuit that can realize high safety by surely shutting off a charge/discharge circuit of a secondary battery.

SOLUTION: A protection circuit 1A includes a protective element 10A, a plurality of secondary battery cells 20, 20, ... an external positive electrode terminal 30a, an external negative electrode terminal 30b, an auxiliary power supply 40, a first control device 50, and a switch 60. The protection element 10A includes a first soluble conductor 15 with both ends connected to a first terminal 11 and a second terminal 12, and a heating element 16 installed in a first energization path P1A between a third terminal 13 and a fourth terminal 14. The auxiliary power supply 40 is electrically independently provided with a plurality of secondary battery cells 20,20, ... and in this protection circuit 1A, the switch 60 is switched to be energized by a signal from the first control device 50; the heating element 16 of the protection element 10A generates heat; and the first soluble conductor 15 is melted to cut off between the plurality of secondary battery cells 20, 20, ... and the external negative electrode terminal 30b.

SELECTED DRAWING: Figure 1

COPYRIGHT: (C)2022,JPO&INPIT


(JA)

【課題】二次電池の充放電回路を確実に遮断して、高い安全性を実現することができる保護回路を提供する。
【解決手段】保護回路1Aは、保護素子10A、複数の二次電池セル20,20,・・・、外部正極端子30a及び外部負極端子30b、補助電源40、第1の制御デバイス50及びスイッチ60を備える。保護素子10Aは、両端が第1の端子11と第2の端子12に接続された第1の可溶導体15と、第3の端子13と第4の端子14の間の第1の通電経路P1Aに設置された発熱体16とを有する。補助電源40は、複数の二次電池セル20,20,・・・と電気的に独立して設けられている。この保護回路1Aでは、第1の制御デバイス50からの信号によりスイッチ60が通電する様に切り替えられ、保護素子10Aの発熱体16が発熱し第1の可溶導体15が溶断されて複数の二次電池セル20,20,・・・と外部負極端子30b間を遮断する。
【選択図】図1


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