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Reliability detecting system for battery balancing circuit

A battery equalization and detection system technology, applied in the electronic field, can solve the problems of permanent battery damage, uncontrollable battery discharge, etc., and achieve high practicability, simple structure, and improved reliability

Inactive Publication Date: 2012-07-18
NINGDE AMPEREX TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the switch failure mode is in the normally closed state, it will cause the battery to continue to discharge uncontrollably through the closed switch, causing the battery voltage to drop below the failure voltage, resulting in permanent damage to the battery

Method used

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  • Reliability detecting system for battery balancing circuit
  • Reliability detecting system for battery balancing circuit
  • Reliability detecting system for battery balancing circuit

Examples

Experimental program
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Embodiment Construction

[0026] The technical solutions and technical effects of the battery balancing circuit reliability detection system of the present invention will be clearly and completely described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments described in this specification are only some, not all, embodiments of the present invention. Based on the various embodiments given in the present invention, all other embodiments obtained by those skilled in the art without creative work all belong to the protection scope of the present invention

[0027] See figure 1 As shown, it is a structural schematic diagram of the first embodiment of the battery balancing circuit reliability detection system provided by the present invention.

[0028] The battery balance circuit reliability detection system provided by the embodiment of the present invention includes a battery A1, a battery balance circuit 1 and a reliability detection circuit 2; th...

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Abstract

The invention discloses a reliability detecting system for a battery balancing circuit, which comprises a battery, a battery balancing circuit and a reliability detecting circuit. The battery balancing circuit comprises a discharge load, a switch device and a control unit; the reliability detecting circuit comprises a voltage detecting judgment unit; after the discharge load is connected in series with the switch device, the two ends of a series-connected circuit which is formed by the discharge load and the switch device are respectively connected with a positive electrode and a negative electrode of the battery; the control unit sends a control signal to the switch device, and the control device is controlled to be in an off or on state; and the voltage detecting judgment unit judges whether the switch device is in failure through detecting the voltages at the two ends of the discharge load and the voltages at the two ends of the battery. The reliability detecting system for the battery balancing circuit can detect that whether the switch device used in the battery balancing circuit is damaged or not, so that the reliability of the battery system is improved.

Description

technical field [0001] The invention relates to the field of electronic technology, in particular to a battery equalization circuit reliability detection system. Background technique [0002] Due to the limitations of battery energy and terminal voltage, it is usually necessary to use multiple batteries in series and parallel combinations to achieve higher voltage and greater energy in practical applications. However, due to the highly nonlinear characteristics of the battery, and the differences in manufacturing process, material, use environment, and wiring method among many batteries in the battery pack, it is inevitable that there will be inconsistencies in capacity, terminal voltage, and internal resistance between individual batteries. During the long-term charging and discharging process, the inconsistency between individual batteries will intensify, which will lead to a rapid decline in the capacity of the entire group of batteries, and even cause damage to individua...

Claims

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Application Information

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IPC IPC(8): H02J7/00G01R31/327H01M10/42
CPCY02E60/12Y02E60/10
Inventor 夏军黄昌明
Owner NINGDE AMPEREX TECH
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