EP0609101A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Electric power accumulating apparatus and electric power system
Assignee: Canon Inc
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Filing: 1994-01-28
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Granted: —
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Expires: 2014-01-28
Abstract
Abstract An electric power accumulating apparatus utilizing a prallel and/or serial array of plural secondary batteries comprises means for detecting abnormality in each of the secondary batteries, means for electrically detaching the output terminals of the secondary battery showing abnormality and, in case of serial connection, shortcircuiting the terminals to which the secondary battery showing abnormality has been connected, and means for compensating the voltage corresponding to the detached battery, thereby providing improved safety, stable output and extended service lives of the secondary batteries.
Inventors
- 👤 Soichiro C/O Canon Kabushiki Kaisha Kawakami
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-07 23:36
CPC Classifications
H; H02; H02J; H02J7/00; H02J7/50; H02J7/575; H01; H01M; H01M10/00; H01M10/42; H01M10/4207; H02J7/60; H02J7/65; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
72 words
An electric power apparatus provided with plural secondary batteries arranged in a serial and/or parallel array, comprising: means for detecting abnormality in each of said plural secondary batteries; means for electrically detaching the output terminals of a secondary battery showing abnormality and, in case of a serial connection, shortcircuiting the terminals to which said secondary battery showing abnormality has been connected; and means for compensating the voltage corresponding to said detached battery.
Claim 2
Dependent Claim
28 words
An apparatus according to claim 1, wherein said means for compensating the voltage corresponding to said detached battery is an auxiliary power source composed of a secondary battery.
Claim 3
Dependent Claim
27 words
An apparatus according to claim 1, wherein said means for detaching of the secondary battery showing abnormality, eventually with shortcircuiting of the terminals includes a switching element.
Claim 4
Dependent Claim
40 words
An apparatus according to claim 1, wherein said means for detecting abnormality of said secondary batteries is means adapted to measure the state of at least one of the voltage, current, temperature and strain of each of the secondary batteries.
Claim 5
Dependent Claim
18 words
An apparatus according to claim 1, further comprising means for requesting replacement of the secondary battery showing abnormality.
Claim 6
Dependent Claim
35 words
An apparatus according to claim 1, further comprising means for connecting, after said secondary battery showing abnormality is replaced by a normal one, the output terminals thereof to the battery array thereby restoring the apparatus.
Claim 7
Dependent Claim
22 words
An apparatus according to claim 1, further comprising means for informing the timing of replacement of the secondary batteries constituting said apparatus.
Claim 8
Dependent Claim
10 words
An apparatus according to claim 1, further comprising rectifying means.
Claim 9
Dependent Claim
16 words
An apparatus according to claim 1, further comprising stabilizing means for providing a stable constant voltage.
Claim 10
Dependent Claim
17 words
An apparatus according to claim 1, further comprising means for controlling charging and discharging of the apparatus.
Claim 11
Dependent Claim
24 words
An apparatus according to claim 1, further comprising an inverter for elevating the output voltage and converting the output current into an AC current.
Claim 12
Dependent Claim
11 words
An apparatus according to claim 1, further comprising noise eliminating means.
Claim 13
Dependent Claim
16 words
An apparatus according to claim 1, further comprising means for displaying the amount of accumulated electricity.
Claim 14
Dependent Claim
11 words
An apparatus according to claim 1, further comprising a DC-DC converter.
Claim 15
Dependent Claim
29 words
An apparatus according to claim 1, wherein said secondary batteries are selected from a group consisting of lithium battery, nickel-zinc battery, air-zinc battery, bromine-zinc battery and silver oxide-zinc battery.
Claim 16
Dependent Claim
18 words
An apparatus according to claim 1, wherein said secondary batteries are unit batteries of a substantially same capacity.
Claim 17
Dependent Claim
28 words
An electric power system including a power accumulating apparatus as claimed in any one of the preceding claims, and a load electrically connected to said power accumulating apparatus.
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