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Battery assembly, electric vehicle and design method

A battery assembly and battery module technology, applied in the field of electric vehicles and design, battery assembly, can solve problems such as failure, low safety performance, liquid cooling plate damage, etc., to delay thermal runaway, reduce weight, and reduce fatigue. the effect of destruction

Active Publication Date: 2022-05-31
CHINA FIRST AUTOMOBILE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the existing battery modules use CTP battery assembly (integrated battery assembly). The liquid cooling plate of the battery is loaded, which is easy to cause damage to the liquid cooling plate, has a high risk of failure, and has low safety performance

Method used

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  • Battery assembly, electric vehicle and design method
  • Battery assembly, electric vehicle and design method
  • Battery assembly, electric vehicle and design method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] As shown in Figures 1-7, the embodiment of the present invention provides a battery assembly, comprising a lower case 1 and a liquid cooling plate 2. drop box

[0051] Further, the liquid cooling plate 2 includes an upper plate 23, a lower plate 24, a water outlet pipe joint 25 and a water inlet pipe joint 26. on board 23

[0054] Further, the liquid cooling plate 2 also includes a plurality of insulating strips 27, a heat conducting structure and a plurality of fixing columns 28. Insulation strip 27 solid

[0055] Further, the flow channel 241 includes three total flow channels 2413 and a spoiler structure. Three total flow channels 2413 are set in parallel,

[0056] Further, the spoiler structure includes a spoiler ring 2415 and a spoiler channel 2416. As shown in Figure 7, the total flow of the three parallel

Embodiment 2

[0058] This embodiment provides an electric vehicle, including the battery assembly in the first embodiment. Electric Vehicle Adoption Example

Embodiment 3

[0062] The general flow channel 2413 designed in parallel can enhance the mechanical reliability of the battery assembly and improve the overall fatigue performance. exist

[0064] The parallel shunt channels 2414 are calculated by the pressure drop of the liquid cooling plate 2, and the number of the shunt channels 2414 in common use is 3-6. Pass

[0066] The turbulence structure is used to adjust the flow distribution of the plurality of total flow channels 2413, and through the turbulence structure, the

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Abstract

The invention belongs to the technical field of new energy vehicles, and in particular relates to a battery assembly, an electric vehicle and a design method. The battery assembly includes a lower box and a liquid cooling plate, and the lower box includes a frame, longitudinal beams and beams. The frame includes front beams, rear beams and side beams; both ends of the longitudinal beams are respectively fixedly connected to the front beams and rear beams, and a plurality of first bosses are arranged on the bottom surface; multiple cross beams are arranged parallel to each other, and the two ends are respectively fixedly connected to the side beams on both sides , the crossbeam and the longitudinal beam are cross-fixedly connected, and the bottom surface of the beam is provided with a plurality of second bosses; the liquid cooling plate includes a plurality of first installation ports and a plurality of second installation ports penetrating through it, and the liquid cooling plate is fixedly connected to the lower box, The first mounting port is snapped to the first boss, the second mounting port is snapped to the second boss, and the upper surface of the liquid cooling plate is connected to the battery module. In the battery assembly of the present invention, the liquid cooling plate has strong load-bearing capacity, simple structural arrangement, high integration, and high space utilization; the battery module of the electric vehicle has high safety performance; and the design method is used to design the above liquid cooling plate.

Description

A battery assembly, electric vehicle and design method technical field [0001] The present invention relates to the technical field of new energy vehicles, in particular to a battery assembly, an electric vehicle and a design method. Background technique [0002] At present, the development prospect of new energy vehicles is very broad. New energy vehicles have high energy efficiency, zero emissions, no Pollution, high specific energy, low noise and high reliability. The power battery system is the main energy storage part of the new energy battery vehicle components, mainly to ensure the driving of the whole vehicle, the electricity demand of high and low voltage components, the recovery of braking energy, and the hybrid engine system. Energy regulation and other functions. The lower box and liquid cooling plate of the battery assembly serve as structural protection and thermal management functions for the battery assembly core components, its importance is self-evi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M50/204H01M50/233H01M50/242H01M50/244H01M50/249H01M50/258H01M10/613H01M10/625H01M10/6554H01M10/6556H01M10/6567H01M10/658B60L50/64G06F30/15G06F30/28
CPCH01M50/233H01M50/242H01M50/244H01M50/249H01M50/258H01M50/204H01M10/613H01M10/625H01M10/6554H01M10/6556H01M10/6567H01M10/658B60L50/64G06F30/28G06F30/15Y02T10/70
Inventor 孙焕丽卢军许立超乔延涛刘鹏曹云飞
Owner CHINA FIRST AUTOMOBILE
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