Unlock instant, AI-driven research and patent intelligence for your innovation.

Battery pack insulation detection system, battery pack system and working method

A detection system and battery pack technology, applied in the direction of measuring current/voltage, measuring electricity, measuring devices, etc., can solve the problems of complex calculation process, affecting the normal operation of the system, easy to form ripple interference, etc., and achieve the effect of convenient maintenance

Active Publication Date: 2020-02-18
NEW UNITED RAIL TRANSIT TECH
View PDF17 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The test signal in the AC signal injection method is easy to form ripple interference in the system, which affects the normal operation of the system; the external resistance method needs to measure multiple sets of voltage and current data, and solve the equations in parallel. The overall calculation process is more complicated

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Battery pack insulation detection system, battery pack system and working method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] figure 1 It is a circuit diagram of the battery pack insulation detection system of the present invention.

[0024] In this example, if figure 1 As shown, this embodiment provides a battery pack insulation detection system, which includes: a processor module, an insulation control circuit electrically connected to the processor module, a leakage current signal detection circuit and a CAN isolation module; wherein the The insulation control circuit is electrically connected to the battery pack; the leakage current signal detection circuit is connected to the battery pack box; the processor module is suitable for controlling the conduction of the insulation control circuit so that the battery pack and the battery pack box are connected to form a leakage current signal, the leakage current signal detection circuit is adapted to detect the leakage current signal and send it to the processor module, that is, if the leakage current signal is within the insulation qualified t...

Embodiment 2

[0050] On the basis of Embodiment 1, this embodiment provides a battery pack system, which includes: the battery pack insulation detection system provided in Embodiment 1, and a battery pack control system; the battery pack insulation detection system is suitable for detecting The insulation status between the battery pack and the battery pack box is sent to the battery pack control system.

[0051] In this embodiment, the battery pack insulation detection system has been clearly described in the above embodiments.

Embodiment 3

[0053] On the basis of the above-mentioned embodiments, this embodiment provides a working method of the battery pack insulation detection system, which includes: operating as the battery pack insulation detection system provided in Embodiment 1.

[0054] The processor module controls the conduction of the insulation control circuit, so that the battery pack and the battery pack box are connected to form a leakage current signal, and the leakage current signal is detected by the leakage current signal detection circuit and sent to the processor Module, that is, if the leakage current signal is within the insulation qualified threshold, it is judged that the battery pack and the battery pack box are well insulated; and if the leakage current signal exceeds the insulation qualified threshold, it is judged that the battery pack and the battery pack box are not qualified; The processor module sends the insulation state of the battery pack and the battery pack box to the external de...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a battery pack insulation detection system, a battery pack system and a working method. The battery pack insulation detection system comprises a processor module, an insulation control circuit electrically connected with the processor module, a leakage current signal detection circuit and a CAN isolation module; the processor module is suitable for controlling the insulation control circuit to conduct, so that a battery pack is connected with a battery pack box body to form a leakage current signal, the leakage current signal detection circuit is suitable for detectingthe leakage current signal and sending the leakage current signal to the processor module, namely, if the leakage current signal is within an insulation qualified threshold value, the battery pack isjudged to be well insulated from the battery pack box body; and the processor module is also suitable for sending the insulation state of the battery pack and the battery pack box body to external equipment through the CAN isolation module. According to the battery pack insulation detection system, the insulation performance of the battery pack to the battery pack box body is monitored, the faultpole of the battery pack can be quickly positioned, the maintenance is convenient, and transplanting can be carried out through the CAN isolation module to work on any equipment needing insulation detection.

Description

technical field [0001] The invention relates to the field of battery pack insulation detection, in particular to a battery pack insulation detection system, a battery pack system and a working method. Background technique [0002] With the rapid development of the electric vehicle industry, the insulation performance of the battery pack has gradually become a key issue for people to consider. The DC high voltage used by the battery pack has far exceeded the safe voltage that the human body can withstand. In order to avoid the risk of electric shock, it is necessary to ensure that the casing of the battery pack The insulation performance is good, so the insulation test is introduced to enhance the safety and reliability of the external connection circuit of the battery pack. [0003] At present, the insulation detection of the battery pack is mainly to measure the insulation resistance, one is the AC signal injection method, and the other is the external resistance method. T...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/382G01R31/396G01R19/165G01R31/12
CPCG01R19/16542G01R31/12G01R31/382G01R31/396
Inventor 许杰谈浩楠金诚姜敞潘晓晨盛晓峰顾铭麒
Owner NEW UNITED RAIL TRANSIT TECH