Battery Equalizer Detection Module for Abnormal State Monitoring

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Solution Overview

Problem

Conventional power supply devices with battery equalizers cannot detect abnormal operating states of battery equalizers, leading to increased electricity consumption and reduced battery service life due to potential short-circuit conditions.

Innovation Solution

A detecting module comprising a current detecting unit, drive circuit, and control circuit is used to monitor current flow through battery equalizers, determining their operational state and preventing abnormal charging or discharging by controlling the drive circuit.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Duration of action of stationary object

If battery equalizers are used to equalize electrical input/output of batteries, then service life of battery set is increased, but ability to detect abnormal operating state is lost

Engineering Contradiction:
Improveservice life of battery setVSAvoiddetection capability of battery equalizer
Core Design Contradiction:
Duration of action of stationary objectVSReliability

Solution Approach 1:

A current detecting unit is introduced as an intermediary component between the battery equalizer and the control circuit. This detecting unit monitors current flow through the battery equalizer and provides detection signals to the control circuit, enabling indirect detection of abnormal operating states without interfering with the equalization function.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The control circuit receives detection signals from the current detecting unit and generates control signals based on the detected current flow. When abnormal current flow is detected (indicating short-circuit or other faults), the control circuit activates alarm signals or shuts down the battery equalizer, providing feedback control to prevent damage and extend battery service life.

Inventive Principle:
Principle #23Feedback

2Device complexity

If battery equalizer operates without detection capability, then device complexity is reduced, but electricity consumption increases and battery service life shortens

Engineering Contradiction:
Improvestructure of battery equalizerVSAvoidelectricity consumption
Core Design Contradiction:
Device complexityVSLoss of energy

Solution Approach 1:

The current detecting unit serves as a minimal-complexity intermediary that monitors battery equalizer operation. By detecting current flow through the battery equalizer, it enables energy loss detection and abnormal state identification without requiring complex monitoring systems, thus preventing excessive electricity consumption while maintaining simple device architecture.

Inventive Principle:
Principle #24Intermediary (Mediator)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The solution effectively prevents damage to batteries by detecting abnormal states of battery equalizers, reducing electricity consumption and extending battery life by ensuring normal operating conditions.

Implementation Method 1

The current detecting unit is to be coupled to the battery equalizer and the battery set of the power supply device, and generates an output based on detected current flow through the battery equalizer

Methodology Applied
Scientific EffectElectrical current detection: Conduction (electrical)

Data Source

PatentUS8441234B2Detecting module for a battery equalizer and method for detecting a battery equalizer
Publication Date: 2013.05.14 LITE ON TECH CORP
  • US8441234B2 patent drawing
  • US8441234B2 patent drawing
  • US8441234B2 patent drawing

AI summary

A detecting module is for detecting a battery equalizer of a power supply device. The detecting module includes a current detecting unit, a drive circuit, and a control circuit. The current detecting unit is to be coupled to the battery equalizer and a battery set of the power supply device, and generates an output based on detected current flow through the battery equalizer. The drive circuit is to be coupled to the battery equalizer for driving operation of the battery equalizer. The control circuit is coupled to the drive circuit and the current detecting unit, controls the drive circuit to drive operation of the battery equalizer and determines, according to the output of the current detecting circuit, whether the battery equalizer is in a normal operating state.