JPS55147365A - Device for warning reduction of capacity of battery - Google Patents

Device for warning reduction of capacity of battery

Info

Publication number
JPS55147365A
JPS55147365A JP5400979A JP5400979A JPS55147365A JP S55147365 A JPS55147365 A JP S55147365A JP 5400979 A JP5400979 A JP 5400979A JP 5400979 A JP5400979 A JP 5400979A JP S55147365 A JPS55147365 A JP S55147365A
Authority
JP
Japan
Prior art keywords
battery
transistor
lamp
reduction
sensor
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
JP5400979A
Other languages
Japanese (ja)
Inventor
Yoshiaki Hayashi
Kimiaki Ishikawa
Kazuki Takahashi
Makoto Yamanoi
Kiyoshi Wada
Seiichi Arai
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.)
Koito Manufacturing Co Ltd
Original Assignee
Koito Manufacturing 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 Koito Manufacturing Co Ltd filed Critical Koito Manufacturing Co Ltd
Priority to JP5400979A priority Critical patent/JPS55147365A/en
Publication of JPS55147365A publication Critical patent/JPS55147365A/en
Pending legal-status Critical Current

Links

Classifications

    • Y02E60/12—

Landscapes

  • Measurement Of Current Or Voltage (AREA)
  • Tests Of Electric Status Of Batteries (AREA)
  • Secondary Cells (AREA)

Abstract

PURPOSE: To exactly warn the reduction of the capacity of a battery by detecting the voltage drop at the terminal of the battery and stably indicating it by an indicator such as a lamp or the like.
CONSTITUTION: In order to detect the electrolytic level drop in a battery owing to the reduction of the electrolyte in the battery, a liquid level sensor LS is provided, and the output of the sensor LS is inverted and applied to the transistor Tr2 of a drive circuit. When the transistor Tr1 produces the voltage detection output voltage, the transistor Tr2 is conducted to energize the lamp L as an indicator and to ground the base of the transistor Tr1 through the transistor Tr2. Thus, the lamp L is retained in the energized state. Then, the electromotive force of the sensor LS is reduced when the liquid level drop of the electrolyte in the battery occurs to cut off the transistor Tr3 and to thus energize the lamp L.
COPYRIGHT: (C)1980,JPO&Japio
JP5400979A 1979-05-04 1979-05-04 Device for warning reduction of capacity of battery Pending JPS55147365A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5400979A JPS55147365A (en) 1979-05-04 1979-05-04 Device for warning reduction of capacity of battery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5400979A JPS55147365A (en) 1979-05-04 1979-05-04 Device for warning reduction of capacity of battery

Publications (1)

Publication Number Publication Date
JPS55147365A true JPS55147365A (en) 1980-11-17

Family

ID=12958572

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5400979A Pending JPS55147365A (en) 1979-05-04 1979-05-04 Device for warning reduction of capacity of battery

Country Status (1)

Country Link
JP (1) JPS55147365A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57183666U (en) * 1981-05-18 1982-11-20
JPS61105869U (en) * 1984-12-18 1986-07-05
JPS6293670A (en) * 1985-10-18 1987-04-30 Matsushita Electric Ind Co Ltd Voltage drop display method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5036927A (en) * 1973-08-08 1975-04-07

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5036927A (en) * 1973-08-08 1975-04-07

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57183666U (en) * 1981-05-18 1982-11-20
JPS61105869U (en) * 1984-12-18 1986-07-05
JPH0541415Y2 (en) * 1984-12-18 1993-10-20
JPS6293670A (en) * 1985-10-18 1987-04-30 Matsushita Electric Ind Co Ltd Voltage drop display method

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