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Connecting device and connecting structure for high-voltage battery modules in electric automobile

A technology for electric vehicles and high-voltage batteries, applied in battery pack parts, structural parts, circuits, etc., can solve problems such as difficulty in routing low-voltage lines and high-voltage lines of battery modules

Active Publication Date: 2021-05-28
DONGFENG MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Based on this, it is necessary to provide a high-voltage battery module connection device for electric vehicles and a high-voltage battery module connection structure for electric vehicles in view of the technical problem that the low-voltage and high-voltage lines of the battery module in the prior art are difficult to route in the car.

Method used

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  • Connecting device and connecting structure for high-voltage battery modules in electric automobile
  • Connecting device and connecting structure for high-voltage battery modules in electric automobile
  • Connecting device and connecting structure for high-voltage battery modules in electric automobile

Examples

Experimental program
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Effect test

Embodiment 1

[0056] Such as figure 1 Shown is an electric vehicle high-voltage battery module connecting device 1-1 according to an embodiment of the present invention, comprising: an upper cover plate 1 of the device, a low-voltage connecting module 5, a high-voltage copper bar connecting module 7, and a lower cover plate 9 of the device. The upper cover plate 1 of the device and the lower cover plate 9 of the device are connected to form a device shell, and the low-voltage connection module 5 and the high-voltage copper bar connection module 7 are housed in the device shell;

[0057] The low-voltage connection module 5 includes a low-voltage wire harness assembly 5-1 electrically connected to the low-voltage circuit of the battery module 10, and a flexible circuit board assembly 5-2 electrically connected to the battery management system of the electric vehicle;

[0058] The high-voltage copper bar connection module 7 includes a high-voltage copper bar electrically connected to the high...

Embodiment 2

[0074] Such as Figure 1 to Figure 24 As shown, a connection device 1-1 for a high-voltage battery module of an electric vehicle in the present invention includes: an upper cover plate 1 of the device, a low-voltage connection module 5, a high-voltage copper bar connection module 7, and a low-voltage connection module arranged above the low-voltage connection module 5. The upper partition plate 4 of the module, the lower partition plate 6 of the low-voltage module arranged below the low-voltage connection module 5, and the lower cover plate 9 of the device, the upper cover plate 1 of the device and the lower cover plate 9 of the device are connected to form a device shell, The low-voltage connection module 5 and the high-voltage copper bar connection module 7 are accommodated in the device shell, and the low-voltage connection module 5 and the upper partition plate 4 of the low-voltage module are metal plates;

[0075] The low-voltage connection module 5 includes a low-voltage...

Embodiment 3

[0108] An embodiment of the present invention is a high-voltage battery module connection structure for an electric vehicle, including a high-voltage battery module connection device 1-1 for an electric vehicle, and a plurality of battery modules 10;

[0109] Electric vehicle high-voltage battery module connection device 1-1, including: device upper cover 1, low-voltage connection module 5, high-voltage copper bar connection module 7, and device lower cover 9, the device upper cover 1 and the device The lower cover plate 9 is connected to form a device casing, and the low-voltage connection module 5 and the high-voltage copper bar connection module 7 are accommodated in the device casing;

[0110] The low-voltage connection module 5 includes a low-voltage wire harness assembly 5-1 electrically connected to the low-voltage circuit of the battery module 10, and a flexible circuit board assembly 5-2 electrically connected to the battery management system of the electric vehicle; ...

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Abstract

The invention discloses a connecting device and connecting structure for high-voltage battery modules in an electric automobile. The connecting device comprises an upper cover plate of the device, a low-voltage connecting module, a high-voltage copper bar connecting module and a lower cover plate of the device, wherein the low-voltage connection module comprises a low-voltage wire harness assembly and a flexible circuit board assembly; and the high-voltage copper bar connecting module comprises a high-voltage copper bar, a copper bar temperature sensor for detecting the temperature of the high-voltage copper bar is arranged on the high-voltage copper bar, and the copper bar temperature sensor is electrically connected with the flexible circuit board assembly. According to the invention, through concentrated wiring, the wiring lengths of the high-voltage copper bar and low-voltage wire harnesses are reduced, the wiring disorder of the high-voltage copper bar and the low-voltage wire harnesses is avoided, the space utilization rate of an internal circuit of the power battery is increased, a scheme is provided for production automation, the external packaging cost of the high-voltage busbar and the low-voltage wire harnesses is reduced, a connection path is optimized, and a design scheme is provided for modularization and platformization.

Description

technical field [0001] The invention relates to the technical field related to automobiles, in particular to an electric vehicle high-voltage battery module connection device and an electric vehicle high-voltage battery module connection structure. Background technique [0002] An electric vehicle includes multiple high-voltage battery modules, and the poles of the battery modules are electrically connected through copper bars to provide power for the electric vehicle. In order to manage the battery modules, the electric vehicle is equipped with a battery management system (Battery Management System, BMS) and a battery disconnect unit (Battery Disconnect Unit, BDU). Among them, the BMS monitors the battery module through the internal low-voltage control harness of the battery module, while the BDU is connected to the copper row to control the disconnection and connection of the high-voltage power of the battery. [0003] However, if Figure 27 with Figure 28 As shown, sin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M50/507H01M50/258H01M50/249H01M50/244H01M50/209H01M50/298
CPCY02E60/10
Inventor 刘刚李凯淳周顺
Owner DONGFENG MOTOR CO LTD
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