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Open circuit detecting system

A technology of open circuit detection and switch matrix, applied in the direction of measuring electricity, measuring devices, measuring electrical variables, etc., can solve the problems of low work efficiency and cumbersome open circuit detection process, and achieve the goal of improving work efficiency, shortening detection time, and simplifying detection steps Effect

Pending Publication Date: 2019-04-19
安徽优旦科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problem that the open circuit detection process in the existing battery management system is cumbersome and thus the work efficiency is low, the present invention provides an open circuit detection system

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Embodiment 1 switch matrix

[0038] refer to image 3 , this embodiment provides a switch matrix, including optocoupler OC1, optocoupler OC2, optocoupler OC3, optocoupler OC4, optocoupler OC5, optocoupler OC6, optocoupler OC7, optocoupler OC8 and optocoupler OC9. Among them, there is an electrical connection between the optocoupler and the system under test, the signal input detection and conditioning module, and the MCU controller, thereby ensuring the normal operation of the open circuit detection system as a whole and establishing communication between the system under test and the open circuit detection system bridge.

[0039] Furthermore, port 1 and port 3 of photoresistor optocoupler OC1, optocoupler OC2, optocoupler OC3, optocoupler OC4, optocoupler OC5 and optocoupler OC6 are electrically connected to the positive pole of the power supply through resistors ; The 2 ports and 4 ports of photoresistor optocoupler OC1, optocoupler OC2, optocoupler OC3, optocouple...

Embodiment 2

[0050] Embodiment 2 Signal input detection conditioning module

[0051] refer to figure 2 , this embodiment provides a signal input detection and conditioning module, including a diode and an amplifier, which is to perform specific processing on the signal transmitted from the switch matrix, and then transmit it to the ADC analog-to-digital converter, thereby ensuring The overall accuracy of the open circuit detection system.

[0052] Wherein, the amplifier includes an amplifier A1 and an amplifier A2, and the diode includes a diode D1, a diode D2, and a diode D3. Further, the diode D1 and the diode D2 are connected in parallel with each other. In this embodiment, specifically, the cathode of the diode D1 The anode of the diode D2 is electrically connected, and the anode of the diode D1 is electrically connected to the cathode of the diode D2. At the same time, the parallel circuit is electrically connected to the input terminal of the amplifier A1, specifically, the cathod...

Embodiment 3

[0057] Embodiment 3 display module

[0058] This embodiment provides a display module, including an LED display, wherein the LED display is electrically connected to the MCU controller. In this embodiment, the LED display can be a display screen or a simple LED lamp. Obviously, the LED display here is only a device that can achieve the effect of displaying results, and there is no fixed device requirement. It is sufficient to display the judgment result made by the MCU controller in this embodiment.

[0059] In this embodiment, the LED display is a display screen. When the MCU controller receives the voltage in the ADC analog-to-digital converter and makes a judgment, the MCU controller will send the judgment result signal to the display screen. The screen can display the results according to the pre-design. It is worth noting that the design here can be set according to the actual needs of users. For example: the display only simply shows the voltage value in the ADC analog...

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Abstract

The invention discloses an open circuit detecting system, and belongs to the technical field of battery management. The system comprises a switch matrix, an ADC analog-digital converter and a displaymodule, the ADC analog-digital converter is electrically connected with the switch matrix, and the switch matrix is electrically connected with an MCU controller through the ADC analog-digital converter; the MCU controller is electrically connected with the display module and a battery supply. The switch matrix is electrically connected with a detected system, the MCU controller can monitor running states of the switch matrix, therefore in the detecting process of the open circuit detecting system, the detecting result can be quickly obtained, the detecting time is shortened, and the work efficiency of detection can be improved.

Description

technical field [0001] The invention belongs to the technical field of battery management, and in particular relates to an open circuit detection system. Background technique [0002] With the increasing application of battery packs in the field of new energy vehicles, the fuse at the input end of the BMS (Battery Management System) may be damaged at any time during the application process. When the damage occurs, it will be difficult to locate , thus bringing a lot of inconvenience to the after-sales personnel. In order to be able to solve this problem, the only way is to disassemble the BMS and actually measure the input fuse to check if it is damaged. However, the process takes too long and the work efficiency is too low, which is not conducive to long-term use. [0003] Chinese Patent Publication No.: CN 102209903 A; Publication Date: October 5, 2011, discloses a system and method for identifying open circuits in parallel connections on circuit assemblies such as print...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/02G01R31/36
CPCG01R31/50
Inventor 王晓东彭勇俊董丽伟曹瑞
Owner 安徽优旦科技有限公司