Galvanic battery with detection unit

A technology of battery pack and detection unit, which is applied in the direction of measuring electricity, secondary batteries, measuring electrical variables, etc., can solve the problems of non-battery faults that cannot be detected and too many connections

Active Publication Date: 2006-03-15
EMERSON NETWORK POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to solve the above-mentioned problems in the prior art

Method used

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  • Galvanic battery with detection unit
  • Galvanic battery with detection unit
  • Galvanic battery with detection unit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Figure 2A It is a schematic diagram of the principle of Embodiment 1, which includes a battery detection unit 30 and one or more groups of battery subgroups 20 connected in parallel, wherein each battery subgroup 20 includes a plurality of single batteries connected in series; the battery detection unit 30 uses To detect the state of the battery subgroup according to the detection point voltage of each battery subgroup 20, it includes one or more detection voltage input terminals, which are respectively connected to the detection point voltage output terminals 26 of each battery subgroup; the detection point is set at At the midpoint of a battery subpack (a battery subpack contains an even number of cells, so there can be a true midpoint). At this time, each battery sub-group only needs to connect at least three wires.

[0033] Figure 3A Shown is a schematic block diagram of the battery detection unit 30 of this embodiment, which includes a detection point ideal vol...

Embodiment 2

[0046] like Figure 2B , 2C As shown, each battery sub-group 20 still includes only one detection point, which is set at a node located close to the midpoint of the battery sub-group and far away from the terminal voltage output end of the battery group, rather than strictly located at the midpoint (when the single battery When the number is an odd number, there will be no strict midpoint, and this embodiment is especially useful).

[0047] According to the first and second embodiments, real-time detection of the storage battery can be realized with the least wiring, and the reasons are explained as follows:

[0048] (1) Since the battery pack works in parallel with one or more battery sub-groups and the communication power supply, the terminal voltage of one of the battery sub-groups can still remain unchanged when a fault occurs in one of the battery sub-groups, so it is impossible to simply detect the terminal voltage of the battery pack To achieve the detection purpose. ...

Embodiment 3

[0053] like Figure 2D As shown, in each battery subgroup, there is more than one detection point, which is set at the node of the series connection of the battery cells in the battery subgroup. At least two battery cells are spaced between at least one of the voltage output terminals 22 , 24 . The advantage of doing this is that when a fault occurs, the location of the fault in the battery sub-group can be further located, instead of only locating which battery sub-group has failed as in the first embodiment.

[0054] But as before, the purpose of battery testing is to find faults. Once a fault is found, the rest of the problems—determining the fault location and follow-up disposal—are easy to deal with. Therefore, in comparison, finding a fault is much more important than locating the fault location, and the first and second embodiments achieve this with the least wiring. It can be seen that each of the three embodiments has its unique advantages.

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PUM

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Abstract

The invention comprises a battery checking unit and one or more groups of battery packs connected each other in parallel. Each battery pack comprises multi batteries connected each other in series. The battery checking unit checks the state of each battery pack by checking the voltage at the checking point of battery pack. The checking point is located in node of series connection between batteries. The interval of checking point is two batteries. At least one checking point should be mounted in each battery pack. It also includes one or more checking voltage input end connected with voltage output end of checking point of each battery pack.

Description

【Technical field】 [0001] The invention relates to a battery pack with a detection unit. 【Background technique】 [0002] In the communication power supply equipment of telecom operators, batteries account for a large part of investment, so operators attach great importance to the maintenance of batteries. There are many studies and related equipment for battery maintenance. But most of them are judged by detecting the terminal voltage of each single battery. According to the working principle of the battery, when a battery is in a fault state, its terminal voltage will be much lower than normal when it is discharged. For example, a A 12V single battery is about 12V when it starts to discharge normally, but the faulty battery will be below 10.5V. like figure 1 Shown is an existing technology designed according to the above idea. This solution is relatively accurate in detection, but there are many wirings. For each battery, two sampling lines are required. The solution is m...

Claims

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Application Information

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IPC IPC(8): H01M10/48G01R31/36
CPCY02E60/10
Inventor 蒋玮
Owner EMERSON NETWORK POWER CO LTD
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