Device for balancing power batteries

A technology for power batteries and power battery packs, applied in battery circuit devices, circuit devices, current collectors, etc., can solve the problems of inconsistency of single cells, affecting the performance of battery packs, shortening the life of single cells, etc., to achieve a balanced Processing, performance-enhancing effects

Active Publication Date: 2013-01-02
BEIQI FOTON MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the individuality of the battery cell and the change of battery parameters during the use of the product, it will lead to the inconsistency of the cell, and the inconsistency of the performance of the cell will affect the performance of the entire battery pack and shorten the life of the cell.

Method used

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  • Device for balancing power batteries
  • Device for balancing power batteries
  • Device for balancing power batteries

Examples

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Embodiment Construction

[0015] Typical embodiments embodying the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention can have various changes in different embodiments, which do not depart from the scope of the present invention, and the description and accompanying drawings are essentially for illustrative purposes, not for use To limit the invention.

[0016] This embodiment provides a power battery balancing device, which can effectively balance the battery pack and improve the overall performance of the battery pack and the life of the single cells. The device includes: a battery pack composed of at least two batteries in series, a balance transformer and a microcontroller.

[0017] See figure 1 Shown is the circuit structure diagram of the power battery balancing device of this embodiment, figure 2 Shown is the circuit connection diagram of the microcontroller UC, figure 1 A-R and figure 2 The ...

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PUM

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Abstract

The invention discloses a device for balancing power batteries. The device comprises a battery pack consisting of at least two batteries connected in series, a balancing transformer and a microcontroller; each battery is connected with a primary coil of the balancing transformer through a control switch, and a secondary coil of the balancing transformer is connected with the battery pack through the control switch; the microcontroller is used for controlling connection between the batteries and the primary coil of the balancing transformer and connection between the secondary coil of the balancing transformer and the battery pack; and the battery pack is balanced through energy transfer of the primary coil and the secondary coil of the balancing transformer. According to the device for balancing the power batteries, the balancing transformer is connected with the battery pack and the single batteries, and energy is transferred through the balancing transformer, so that balancing treatment of the battery pack is realized, overall performance of the battery pack is improved, and service lives of the single batteries are prolonged.

Description

Technical field [0001] The invention relates to the technical field of automobile battery balancing, and in particular to a device suitable for automobile power battery balancing. Background technique [0002] New energy technology is a major innovation in the automotive field. New energy electric vehicles are the main development direction of new energy vehicles. The core technology of electric vehicles is the battery management system. The effective management of batteries is related to the performance and service life of the batteries. . [0003] Car batteries are usually managed in units of battery packs. The battery packs are usually connected in series. The current and time passing through each cell in the series circuit are the same, that is, the discharge of each cell is the same. Due to the personality of the battery cells and the changes in the battery parameters during the use of the product, the inconsistencies of the single cells will be caused. The inconsistency of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00
Inventor 何付同张春淮
Owner BEIQI FOTON MOTOR CO LTD
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