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Battery device

A technology for battery devices and battery packs, applied to battery circuit devices, circuit devices, measuring devices, etc., can solve the problems of unmanageable ascending and descending sequence of identification information, becoming communication load, etc., and achieve the effect of avoiding the increase of communication load.

Active Publication Date: 2011-11-09
MITSUBISHI HEAVY IND LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, in the invention disclosed in the aforementioned Patent Document 1, since the reconnected terminal generates a request message using temporary identification information, there is a problem that the ascending and descending order of the identification information cannot be managed.
[0007] In addition, in the invention disclosed in the above-mentioned Patent Document 2, since the allocation request message is periodically transmitted, there is a problem that it becomes a communication load.

Method used

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no. 1 approach

[0031]figure 1 is a diagram showing a schematic configuration of the battery device according to the first embodiment of the present invention.

[0032] Such as figure 1 As shown, the battery device 100 of the present embodiment is mainly composed of a plurality of battery management units (battery management units) 10a, 10b, 10c, a central management unit (central management unit) 20, a first communication line 30, a second communication line 40. A battery pack group composed of a plurality of battery packs 50a, 50b, 50c, and switching elements 60a, 60b, 60c.

[0033] The battery packs 50a, 50b, and 50c are basically composed of single cells or a plurality of single cells connected in series. A voltage sensor (not shown) for detecting the voltage of the cell and a temperature sensor (not shown) for detecting temperature are provided on each cell. The detection results of the voltage sensor and the temperature sensor are output to the battery management unit 10 provided corr...

no. 2 approach

[0063] Next, use figure 2 A second embodiment of the present invention will be described.

[0064] In the above-mentioned first embodiment, identification information is assigned to each battery management unit by sequentially connecting the second communication line 40, but in this embodiment, each battery management unit is assigned identification information by sequentially turning on the power of each battery management unit. The two differ in that the battery management unit assigns identification information sequentially.

[0065] Hereinafter, regarding the battery device 200 of this embodiment, the description of the same points as those of the first embodiment will be omitted, and only the different points will be described.

[0066] Such as figure 2 As shown, the battery management units 10a', 10b', 10c' are connected by a daisy chain through the second communication line 40, and any battery management unit 10a' located at the end of the plurality of battery manag...

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Abstract

A battery device (100) includes a series of battery group made up of series batteries (50a to 50c) having one or more battery cells and connected in series, battery managing units (10a to 10c) provided correspondingly to each of the series batteries (50a to 50c) and adapted for managing the battery states of the corresponding series batteries (50a to 50c), a central managing unit (20) for giving unique identification information to each of the battery managing units (10a to 10c), acquiring information relating to the battery states of the series batteries (50a to 50c) from the battery managing units (10a to 10c), and managing the batteries, second communication lines (40) daisychaining the battery managing units (10a to 10c), a first communication line (30) connecting any one of the battery managing units (10a to 10c); disposed at one end of the daisychained battery managing units (10a to 10c) to the central managing unit (20), and connection switching units (60a to 60c) provided to the second communication lines (40) between the battery managing units and adapted for switching the connection / disconnection between the battery managing units.

Description

technical field [0001] The invention relates to a battery device. Background technique [0002] Conventionally, as a method of setting identification information of a network connecting a plurality of devices, for example, a method disclosed in Japanese Patent Laid-Open No. 2004-193643 (Patent Document 1) is known. Patent Document 1 discloses a technique in which a reconnected terminal transmits a connection request message including temporary identification information to other terminals, and as a response, when the other terminal that has received the connection request message does not receive the message, it is displayed that it has the same information as the temporary identification information. In the case of a competition message of a terminal whose identification information competes with the identification information, the temporary identification information is set as its own identification information. [0003] In addition, for example, Patent No. 3549676 (Paten...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/02H01M10/42H01M10/48
CPCH01M10/0525G01R31/3658H02J7/0021H01M2010/4278H01M10/425H01M10/06H01M10/482Y02E60/12H01M10/486G01R31/396Y02E60/10H02J7/0013H01M10/4257H02J7/00034H02J7/00038
Inventor 西田健彦桥崎克雄足立和之村上慎治仓山功治藤田宽文
Owner MITSUBISHI HEAVY IND LTD