Rechargeable battery pack

Abstract

The invention discloses a rechargeable battery pack with each rechargeable battery provided with an independent charge-discharge protection control unit, and aims to provide a rechargeable battery pack which is simple in structure, low in construction cost, convenient in operation and practical. The rechargeable battery pack comprises at least two rechargeable batteries, fixing and mounting structural parts, two electrodes and two main charging electrodes. Each rechargeable battery is provided with a charging unit board, each charging unit board is provided with a charging sub-electrode connected with the main charging electrodes, a transformer is arranged on each charging unit board, and battery connecting poles and the two charging sub-electrodes of the two charging boards are isolated by the transformers. The rechargeable battery pack is simple in structure, low in construction cost, convenient in operation and practical, and defective batteries can be found timely so that maintenance of the rechargeable battery pack is simpler. In addition, the problem of battery charging can be solved without inputting excessive capital.

Description

Technical field [0001] The invention relates to a secondary battery, in particular to a rechargeable battery pack in which each rechargeable battery has an independent charging and discharging protection control unit. Background technique [0002] With the continuous popularization of energy storage batteries and electric vehicles, rechargeable batteries with large capacity and large discharge current are used more and more. The current large-capacity rechargeable batteries are obtained by connecting several small single batteries in series / parallel , Difficulty in maintenance of existing technologies and difficulty in meeting charging requirements are the main reasons restricting the development of electric vehicles. Due to the difficulty of battery maintenance, often because a battery is damaged and cannot be maintained in time, the performance of the whole vehicle is reduced or the entire battery pack is scrapped. The cost of one-time use is too high for consumers to acce...

AI Technical Summary

Problems solved by technology

[0002] With the continuous popularization of energy storage batteries and electric vehicles, rechargeable batteries with large capacity and large discharge current are used more and more. The current large-capacity rechargeable batteries are obtained by connecting several small single batteries in series / parallel , Difficulty in maintenance of existing technologies and difficulty in meeting charging needs are the main reasons restricting the development of electric vehicles

Due to the difficulty of battery maintenance, often because a battery is damaged and cannot be maintained in time, the performance of the whole vehicle is reduced or the entire battery pack is scrapped. The cost of one-time use is too high for consumers to accept; in addition, due to large-scale energy storage The voltage of power batteries used in batteries and electric vehicles is relatively high, generally higher than the voltage of the mains. If the rechargeable batteries are connected in series to charge, the voltage of the mains must be boosted, and the current used by the battery is also relatively large. Generally, a special Charging equipment can charge the battery; to meet the charging needs of a large number of electric vehicles, etc., it is necessary to build a large number of special equipment for charging villages, which requires huge investment to complete.

Furthermore, for battery packs used as energy storage batteries or backup batteries, due to the different current and voltage requirements of various electrical equipment, one battery can only be used for one voltage and current parameter, and the practicability is relatively low.

[0003] In order to solve the problems of difficult maintenance and charging equipment, the present invention provides a rechargeable battery pack with simple structure, low construction cost, convenient operation, and practicality, and can find faulty batteries in time, and is relatively simple to maintain, and does not require Investing too much money can solve battery charging problems

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