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Integrated lower bottom plate of anti-extrusion battery lower box body, and preparation method thereof

A technology of anti-extrusion and bottom plate, which is applied in the direction of secondary batteries, electrochemical generators, battery pack components, etc., can solve the problems of low space utilization, unintegrated battery box and water cooling structure, and heavy battery system weight and other issues, to achieve excellent structural strength and rigidity, to meet the effect of light weight and lower requirements

Inactive Publication Date: 2020-12-11
DONGFENG MOTOR CORP HUBEI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the above solution, not all components are made of aluminum profiles, which leads to a large weight of the battery system, and the battery box and the water cooling structure are not integrated, and the space utilization rate is not high

Method used

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  • Integrated lower bottom plate of anti-extrusion battery lower box body, and preparation method thereof
  • Integrated lower bottom plate of anti-extrusion battery lower box body, and preparation method thereof
  • Integrated lower bottom plate of anti-extrusion battery lower box body, and preparation method thereof

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Experimental program
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Effect test

Embodiment Construction

[0031] Below in conjunction with solid and embodiment the present invention will be further described.

[0032] Such as figure 1 As shown, an anti-extrusion battery lower box includes a frame beam assembly 1, a lower bottom plate 2, a 590 large module 3 with a lug end plate, a pipeline 4 composed of a tee / hose / pipe joint and riveted Standard parts 5.

[0033] Such as figure 1 and figure 2 As shown, the frame beam assembly 1 includes left and right load-bearing side beams 1.1, front and rear side beams and corner side beams 1.3, and a load-bearing middle beam 1.2. The left and right load-bearing side beams 1.1, the front and rear side beams and the bottom of the corner side beams 1.3 are all provided with approximately square grooves, and the two ends of the floor beam 2.3 are provided with bosses 2.3.1 overlapping with the approximately square grooves; The U-shaped opening 2.3.2 overlapping with the load-bearing center beam 1.2.

[0034] image 3 As shown, the lower bas...

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Abstract

The invention discloses an integrated lower bottom plate of an anti-extrusion battery lower box body, and a preparation method thereof. The lower bottom plate comprises bottom plate cross beams, watercooling plates and water cooling sealing plates; each water cooling plate comprises an upper cover plate with a pipe orifice and a lower cover plate stamped into parallel runners; reserved parts nested with the bottom plate cross beams are arranged at the left ends and the right ends of the water cooling plates in the X direction and do not fill the water cooling runners, and protruding parts connected with the bottom plate and the water cooling sealing plates in a nested mode are arranged at the left ends and the right ends of the bottom plate cross beams in the X direction; and the bottom plate cross beams are connected with the water cooling plates and the water cooling sealing plates in an XY plane in a nested mode, the reserved parts of the water cooling plates and the upper cover plate form square grooves, the square grooves are in lap joint with the protruding parts of the bottom plate cross beams, the water cooling sealing plates and the reserved parts of the water cooling plates form steps, and the steps are embedded into the groove below the protruding parts of the cross beams. Heat management is provided for a power battery system, the structure strength and rigidity are excellent, the requirement of the battery box body for the Z-direction height is reduced, and the production cost is reduced.

Description

technical field [0001] The invention belongs to the field of power batteries, and in particular relates to an integrated lower bottom plate of an anti-extrusion battery lower box and a preparation method thereof. Background technique [0002] Lithium-ion batteries have the advantages of high specific capacity, good reversibility, and long cycle life, and are an ideal energy storage device for electric passenger vehicles. In order to improve the cruising range of the whole vehicle, electric vehicles based on traditional fuel vehicles adopt battery systems that maximize the number of battery modules in a limited chassis space. This requires high structural strength for the power battery system, and existing solutions mostly adopt The integrated structure of casting / sheet metal machinery leads to heavy weight, high cost, complex assembly process and low space utilization of the battery system. At the same time, the water-cooling plate of the existing power battery system integ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/10H01M10/613H01M10/625H01M10/6554H01M10/6556H01M10/6567
CPCH01M10/613H01M10/625H01M10/6554H01M10/6556H01M10/6567Y02E60/10
Inventor 任强刘坤邢俊亚姜昕童小伟
Owner DONGFENG MOTOR CORP HUBEI
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