Title:
VOLTAGE DETECTOR
Document Type and Number:
WIPO Patent Application WO/1996/032651
Kind Code:
A1
Abstract:
A voltage detector that provides simplified safe means of quickly finding defective ones out of a large mumber of constituent unit cells in a high voltage cell with no skill without touching the individual cells. A voltage detection circuit equipped with a first light emission display circuit is connected fixedly by a pair of connection members. This display lights when a terminal voltage between the terminals of respective unit cells of a high voltage cell constituted by connecting in series a large number (n) of unit cells is or was below a first set value (V1). A second light emission display circuit for emitting light for display in different colors from that of the first light emission display circuit when the terminal voltage exceeds a second set value (V2) may be provided in the voltage detection circuit and in this case, light emitting diodes having a red color are used for the first light emission display circuit, and light emitting diodes having a green color are used for the second light emission display circuit. Since degradation of the unit cell car be detected at an initial stage, the cell life can be increased, and the environmental problem can be improved by eliminating wastes.
Inventors:
JOKO ISAO (JP)
KOIKE TETSUO (JP)
YAMAGUCHI KOICHI (JP)
MASUDA SATOSHI (JP)
ARITAKA KIYOSHI (JP)
MASUDA ATSUSHI (JP)
SHIMIZU KUNITOSHI (JP)
NAKAMURA HIDEJI (JP)
MIYAKE TOSHIHIKO (JP)
KOIKE TETSUO (JP)
YAMAGUCHI KOICHI (JP)
MASUDA SATOSHI (JP)
ARITAKA KIYOSHI (JP)
MASUDA ATSUSHI (JP)
SHIMIZU KUNITOSHI (JP)
NAKAMURA HIDEJI (JP)
MIYAKE TOSHIHIKO (JP)
Application Number:
PCT/JP1996/000966
Publication Date:
October 17, 1996
Filing Date:
April 09, 1996
Export Citation:
Assignee:
HINO MOTORS LTD (JP)
JAPAN STORAGE BATTERY CO LTD (JP)
JOKO ISAO (JP)
KOIKE TETSUO (JP)
YAMAGUCHI KOICHI (JP)
MASUDA SATOSHI (JP)
ARITAKA KIYOSHI (JP)
MASUDA ATSUSHI (JP)
SHIMIZU KUNITOSHI (JP)
NAKAMURA HIDEJI (JP)
MIYAKE TOSHIHIKO (JP)
JAPAN STORAGE BATTERY CO LTD (JP)
JOKO ISAO (JP)
KOIKE TETSUO (JP)
YAMAGUCHI KOICHI (JP)
MASUDA SATOSHI (JP)
ARITAKA KIYOSHI (JP)
MASUDA ATSUSHI (JP)
SHIMIZU KUNITOSHI (JP)
NAKAMURA HIDEJI (JP)
MIYAKE TOSHIHIKO (JP)
International Classes:
G01R31/36; (IPC1-7): G01R19/165; G01R31/36
Foreign References:
| JPS59126459U | 1984-08-25 | |||
| JPS61181382U | 1986-11-12 | |||
| JPS62124566U | 1987-08-07 | |||
| JPH0184077U | 1989-06-05 | |||
| JPS55113277A | 1980-09-01 |
Other References:
See also references of EP 0764851A4
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