JPS54131735A - Battery charger - Google Patents

Battery charger

Info

Publication number
JPS54131735A
JPS54131735A JP3918378A JP3918378A JPS54131735A JP S54131735 A JPS54131735 A JP S54131735A JP 3918378 A JP3918378 A JP 3918378A JP 3918378 A JP3918378 A JP 3918378A JP S54131735 A JPS54131735 A JP S54131735A
Authority
JP
Japan
Prior art keywords
measuring element
battery
temperature
charging voltage
temperature measuring
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
JP3918378A
Other languages
Japanese (ja)
Inventor
Kazuaki Yamamoto
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP3918378A priority Critical patent/JPS54131735A/en
Publication of JPS54131735A publication Critical patent/JPS54131735A/en
Pending legal-status Critical Current

Links

Classifications

    • Y02E60/12—

Landscapes

  • Secondary Cells (AREA)

Abstract

PURPOSE: To accomplish automatic adjustment of battery charging voltage according to anbient temperature by detecting thereof with a temperature measuring element utilizing the fact that the charging capacity of the battery during the cold season increases in proportion to the level of charging voltage.
CONSTITUTION: When the anbient temperature is at the normal level, a temperature measuring element 8 has a high resistance value, where with a relay 9 off, a contact 91 is closed. Thus, lower voltage of a transformer 1 is applied to a rectifying circuit. As the ambient temperature lowers, the temperature measuring element reduces in resistance value until the relay 9 is turned on. Consequantly, while a contact 91 is turned off, with a contact 92 on, the charging voltage of a battery 7 rises. On the other hand, when the ambient temperature returns to the normal, the temperature measuring element goes back to a high resistance value and the relay is turned off. Accordingly, the charging voltage of the battery lowers.
COPYRIGHT: (C)1979,JPO&Japio
JP3918378A 1978-04-05 1978-04-05 Battery charger Pending JPS54131735A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3918378A JPS54131735A (en) 1978-04-05 1978-04-05 Battery charger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3918378A JPS54131735A (en) 1978-04-05 1978-04-05 Battery charger

Publications (1)

Publication Number Publication Date
JPS54131735A true JPS54131735A (en) 1979-10-13

Family

ID=12545990

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3918378A Pending JPS54131735A (en) 1978-04-05 1978-04-05 Battery charger

Country Status (1)

Country Link
JP (1) JPS54131735A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6464533A (en) * 1987-09-02 1989-03-10 Yuasa Battery Co Ltd Charge

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6464533A (en) * 1987-09-02 1989-03-10 Yuasa Battery Co Ltd Charge

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