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JPS58157066A - Alarm device used for warning about over-discharge of battery - Google Patents

Alarm device used for warning about over-discharge of battery

Info

Publication number
JPS58157066A
JPS58157066A JP57039021A JP3902182A JPS58157066A JP S58157066 A JPS58157066 A JP S58157066A JP 57039021 A JP57039021 A JP 57039021A JP 3902182 A JP3902182 A JP 3902182A JP S58157066 A JPS58157066 A JP S58157066A
Authority
JP
Japan
Prior art keywords
battery
reference voltage
voltage
alarm
discharge
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
Application number
JP57039021A
Other languages
Japanese (ja)
Inventor
Masanori Tsugawa
津川　正典
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co Ltd
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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP57039021A priority Critical patent/JPS58157066A/en
Publication of JPS58157066A publication Critical patent/JPS58157066A/en
Pending legal-status Critical Current

Links

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
    • H01M10/44—Methods for charging or discharging
    • 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

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Secondary Cells (AREA)

Abstract

PURPOSE:To perform a detection when a battery comes to have a final discharge voltage by making a first constant reference voltage from the battery, and producing an alarm by comparing the first reference voltage with a second reference voltage which is proportional to the voltage of the battery. CONSTITUTION:A resistor 3 and a constant-voltage diode 4 are connected between the positive electrode and the negative electrode of a battery 1 through a switch 2 so as to make a first constant reference voltage. Resistors 5 and 6 are connected in a similar manner as above so as to make a second reference voltage which is proportional to the voltage of the battery 1. The first and the second voltages are compared by a comparing circuit 7, and an alarm circuit 8 operates and produces a warning when the second reference voltage becomes lower than the first reference voltage. Therefore, whether the battery 1 becomes unusable due to over discharge or not can be detected as soon as electric power is supplied from the battery 1 to a lead 9. Consequently, the handling of the battery 1, such as charging, exchange or the like, can be facilitated.

Description

【発明の詳細な説明】 この発明は、電池を用いた装置においてその電池が放電
終止電圧になった時に警報な発生する電池の過放１ｔｔ
ｖ報漬１１に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention provides an over-discharge alarm (1tt) that generates an alarm when the battery reaches its final discharge voltage in a device using a battery.
This is related to v-hozuke 11.

従来の電池な用いた装置には、この種過放電警報装置が
用いられていなかった。この為電池が使用寿命にきてい
るのにそれがわからなかったため乾電池使用の機器にお
いては使用中電池寿命で使えなくなったり、又蓄電池を
複数個使用した機器においては物っている電池が逆光電
されて電池からガス発生を起こし重大事故の騨因となる
事があった０ てこで、この発明の目的は電池が放電終止電圧に近づ（
・たら、これを警報する電池の過放電警報装−２捉供す
るにある。This type of over-discharge warning device has not been used in conventional devices using batteries. For this reason, it is not known that the battery has reached the end of its useful life, so devices that use dry batteries may become unusable during use, and devices that use multiple storage batteries may experience backlight damage. However, the purpose of this invention is to prevent the battery from reaching its final discharge voltage (
・There is a battery over-discharge alarm system-2 that will alert you to this.

次にこの発明の実施例について図面を参照して、ｉＭ明
する。凶はこの発明の一実施例を示すものである。Next, embodiments of the present invention will be explained with reference to the drawings. This figure shows one embodiment of this invention.

磁ｒにｔ　１の陽極と陰極の間にはスイッチ２を介して
抵抗器３と定電圧ダイオード４を接続し定電圧の参照電
圧ｍを作る。同様に抵抗器５と抵抗器６を・接続し電池
ｌの電圧に比例した参照電圧（２）を作る。こＣら参照
電圧（１）と参照電圧（２）を電圧比較回路７に入力す
る。この電圧比較回路７は、参照電圧ｔ１＋と参照電圧
（２）とな比較し、どちらの電圧が高いかを判定する。A resistor 3 and a constant voltage diode 4 are connected via a switch 2 between the anode and the cathode of t1 to the magnet r to create a constant reference voltage m. Similarly, resistor 5 and resistor 6 are connected to create a reference voltage (2) proportional to the voltage of battery l. These reference voltages (1) and (2) are input to the voltage comparison circuit 7. This voltage comparison circuit 7 compares the reference voltage t1+ and the reference voltage (2) to determine which voltage is higher.

この出力電圧は警報回路８へ送られる。警報回路は電圧
比較回路７から参照電圧（１）より参照電圧（２）の電
圧が下がっていると点滅する発光ダイオードや断続音又
はそれらを同時に発生する。これによりスイッチ２が入
れられたときにこの警報が発生されるので、電池１から
スイッチ２を経て負荷９へ電力が供給されると同時に電
池ｌが使用可能の状態か否かがわかるので乾電池使用の
機器なら電池１の交換が必要な事を、蓄電池使用の機器
なら蓄電池の充電の必要な拳を知る事ができる。This output voltage is sent to the alarm circuit 8. The alarm circuit generates a flashing light emitting diode, an intermittent sound, or both at the same time when the reference voltage (2) from the voltage comparison circuit 7 is lower than the reference voltage (1). As a result, this alarm is generated when switch 2 is turned on, so power is supplied from battery 1 to load 9 via switch 2, and at the same time it is known whether battery 1 is ready for use or not, so dry batteries are used. If it is a device that uses a storage battery, you can know when the battery 1 needs to be replaced, and if it is a device that uses a storage battery, you can know when the storage battery needs to be charged.

【図面の簡単な説明】[Brief explanation of the drawing]

図はこの発明の一実施例を示す電気系軌図である。 １：電池、２：スイッチ、３：抵抗器、４：冗電圧ダイ
オード、５：抵抗器、６：抵抗器、７：電圧比較回路、
８：警報回路、９：負荷。The figure is an electrical system diagram showing one embodiment of the present invention. 1: battery, 2: switch, 3: resistor, 4: redundant voltage diode, 5: resistor, 6: resistor, 7: voltage comparison circuit,
8: Alarm circuit, 9: Load.

Claims (1)

【特許請求の範囲】[Claims] 電池から一定電圧の槻１の参照電圧な得る回路と、電池
電圧に比例した第２の参＃ＭｖＬ圧を作る回路と、これ
ら電圧を比較する比較回路と、この比較回路により制御
される警報回路を有し、ｆＮ記第２の参照電圧が前記第
１の参照電圧より低（なった時に警報を発生させること
により、ｔｉ、池の過放電を警報させることを特徴とし
た電池の過放電讐報装■。A circuit that obtains a constant reference voltage from a battery, a circuit that generates a second reference voltage proportional to the battery voltage, a comparison circuit that compares these voltages, and an alarm circuit that is controlled by this comparison circuit. an over-discharge alarm for a battery, characterized in that the second reference voltage fN is lower than the first reference voltage, by generating an alarm, an alarm is issued for over-discharge of the battery. Information ■.
JP57039021A 1982-03-12 1982-03-12 Alarm device used for warning about over-discharge of battery Pending JPS58157066A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57039021A JPS58157066A (en) 1982-03-12 1982-03-12 Alarm device used for warning about over-discharge of battery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57039021A JPS58157066A (en) 1982-03-12 1982-03-12 Alarm device used for warning about over-discharge of battery

Publications (1)

Publication Number Publication Date
JPS58157066A true JPS58157066A (en) 1983-09-19

Family

ID=12541449

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57039021A Pending JPS58157066A (en) 1982-03-12 1982-03-12 Alarm device used for warning about over-discharge of battery

Country Status (1)

Country Link
JP (1) JPS58157066A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4727006A (en) * 1986-02-12 1988-02-23 The United States Of America As Represented By The Secretary Of The Army Method of monitoring electrochemical cells
JPH03276579A (en) * 1990-03-26 1991-12-06 Pfu Ltd battery circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4727006A (en) * 1986-02-12 1988-02-23 The United States Of America As Represented By The Secretary Of The Army Method of monitoring electrochemical cells
JPH03276579A (en) * 1990-03-26 1991-12-06 Pfu Ltd battery circuit

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