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Electric quantity balancing system and balancing method

An equalization system and equalization technology, which is applied in the direction of current collectors, electric vehicles, electrical components, etc., can solve the problems of long equalization time, many devices, and the inability to achieve constant current equalization, and achieve the effect of simple structure and constant equalized current

Inactive Publication Date: 2015-03-04
DONGGUAN POWERWISE TECH CO LTD
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  • Abstract
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Problems solved by technology

[0003] Among them, the active equalization technology of battery packs in the prior art has complex circuits, many devices, high cost, and low reliability. The required equalization time is long, and constant current equalization cannot be achieved

Method used

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  • Electric quantity balancing system and balancing method
  • Electric quantity balancing system and balancing method

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Embodiment Construction

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0020] See figure 1 As shown, figure 1 It is a schematic diagram of the structure of the power balance system of the first embodiment of the present invention. Such as figure 1 As shown, the power balance system 1 disclosed in this embodiment includes a battery pack 10, a collection module 11, a processing module 12, a switch module 13, and a balance module 14.

[0021] The battery pack 10 includes a plurality of single cells 101 connected in series. The ...

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Abstract

The invention discloses an electric quantity balancing system and balancing method. The electric quantity balancing system comprises a battery pack, an acquisition module, a processing module, a switching module, and a balancing module. To be specific, the battery pack includes a plurality of single batteries that are connected in series. The acquisition module is connected with the battery pack and is used for collecting voltage values of all single batteries. The processing module connected with the acquisition module is used for obtaining the voltage values and generating a first control signal and a second control signal according to the voltage values. A control terminal of the switching module is connected with the processing module; and the switching module obtains the first control signal from the processing module and carries out connection or disconnection based on the first control signal. The balancing module respectively connected with the switching module, the processing module, and the battery pack is used for balancing the battery pack according to the second control signal of the processing module. On the basis of the technical scheme, the structure is simple; the balancing current is constant; and high-efficiency balancing can be realized.

Description

Technical field [0001] The invention relates to the technical field of power balance, in particular to a power balance system and a balance method thereof. Background technique [0002] The prior art battery pack active balancing technology mainly uses energy storage devices such as inductors or capacitors in combination with a switch matrix to transfer the power of single cells with surplus energy to single cells with insufficient energy, thereby achieving power balance. purpose. [0003] Among them, the prior art battery pack active equalization technology has complex circuits, many components, high cost, and low reliability. In the application of multi-string battery packs, when low-energy single cells are far away from high-energy single cells The required equalization time is longer, and constant current equalization cannot be achieved. Summary of the invention [0004] The embodiment of the present invention provides a power balance system and a balance method thereof. The s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00
Inventor 林田生
Owner DONGGUAN POWERWISE TECH CO LTD
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