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Solar active equalization storage battery device of electrocar

A technology for solar cells and battery devices, applied in battery circuit devices, electric vehicles, circuit devices, etc., can solve the problems of large energy loss, short battery performance and life, battery failure, etc., and achieve extended life and less water loss. , the effect of reducing energy loss

Inactive Publication Date: 2012-12-12
WEIFANG GUANGSHENG NEW ENERGY
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Problems solved by technology

[0009] Aiming at the shortcomings of existing common lead-acid batteries and solar cell components used in electric vehicles, the present invention proposes a solar energy active equalization battery device for electric vehicles, which can avoid traditional problems caused by unbalanced batteries. The failure of the battery, large energy loss, short performance and life of the single battery, etc.

Method used

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  • Solar active equalization storage battery device of electrocar

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Embodiment Construction

[0017] like figure 1 As shown, a plurality of storage batteries 1 are connected in series to form a battery pack to provide electric energy for an electric vehicle, and a solar battery module 2 that provides an active equalizing voltage is connected to a charging circuit 8. Multiple fixed contacts of 6 are connected, the negative poles of multiple storage batteries are respectively connected with multiple fixed contacts of the second single-pole multi-throw analog switch 7, and the movable contacts of the first and second single-pole multi-throw analog switches 6 and 7 The movable contacts of the double-pole double-throw analog switch 9 are respectively connected, and the control signal input terminals of the first and second single-pole multi-throw analog switches 6 and 7 and the double-pole double-throw analog switch 9 are connected with the controller 3, and the controller 3 The output control signal controls the actions of the analog switches 6, 7 and 9, so that the movabl...

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Abstract

The invention relates to a solar active equalization storage battery device of an electrocar, the device comprises a storage battery pack, a solar battery component, a controller, a charging circuit and a plurality of analogue switches, the controller cyclically detects voltage of each storage battery by controlling the analogue switches and charges a storage battery having the lowest voltage by controlling the charging circuit so as to realize active equalization of the storage battery pack, thereby prolonging the service life of the storage battery and saving the energy source as well.

Description

technical field [0001] The invention relates to a battery device, in particular to a solar active balancing battery device for an electric vehicle. Background technique [0002] Electric vehicles are a new type of transportation that represents the future direction. The bottleneck restricting the promotion of electric vehicles is the high cost and low life of batteries. High-end electric vehicles use lithium batteries, while low-end electric vehicles use lead-acid batteries. [0003] The lead-acid batteries used in low-end electric vehicles are generally used after connecting multiple batteries in series. Even if the consistency of the batteries is better after screening before grouping, there will be differences after a period of use. [0004] The traditional method of equalizing the voltage of the battery device is to increase the charging voltage (that is, the so-called "overcharge"), and the current gradually decreases in the later stage of charging. "Passive balance"....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/00
Inventor 李玉芝
Owner WEIFANG GUANGSHENG NEW ENERGY
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