Battery pack case
A battery pack and box shell technology, applied in battery pack parts, circuits, electrical components, etc., can solve the problems of slow processing, high parts cost, poor sealing reliability, etc. Enhanced structural stability and enhanced ventilation and heat transfer effects
Pending Publication Date: 2018-09-11
嘉兴埃特纳新能源科技有限公司
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Problems solved by technology
The battery pack is difficult to assemble and disassemble, and the cost of maintenance man-hours is high
[0007] (3) There are multiple welds on the joint surface of the battery pack box and the upper case, the flatness is not good, and the sealing reliability of the joint surface of the upper and battery pack boxes is poor
[0008] (4) There is local welding deformation on the mating surface of the battery pack box and the electrical connector, and the sealing reliability of the connector is poor after installation
[0009] (5) The battery pack box adopts sheet metal welding structure, the structure process is complex, and the cost of parts is high
[0010] (6) The bottom of the battery pack box is a flat sheet metal structure. In order to effectively reduce the risk of impact damage caused by road gravel to the bottom of the power battery pack, it is usually necessary to add sheet metal reinforcements for the battery pack box to enhance the strength of the battery pack box and rigidity, making the overall weight of the battery pack box too large, which does not meet the lightweight design requirements of new energy vehicles
[0012] The above-mentioned patent still adopts a sheet metal structure, and its manufacturing process generally includes cutting, punching, bending and pressing, etc. These methods are slow in processing and low in yield
Method used
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[0042] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0043] Figure 1 to Figure 3 The structural diagram of the battery pack box provided in , which is integrally formed by molten aluminum casting, is characterized in that it includes an inwardly recessed shell 10, and the bottom surface 11 of the shell includes several criss-crossing reinforcing ribs 2, and the shell A spacer 12 is disposed in the middle of the bottom surface 11 , and the spacer portion 12 divides the bottom surface 11 of the housing into three...
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Abstract
The invention discloses a battery pack case, which is integrally molded using molten aluminum casting and is characterized in that the case includes a recessed shell. The bottom surface of the shell comprises a plurality of crisscross reinforcing bars. The middle of the bottom surface of the shell is provided with a partition part which divides the bottom surface of the shell into two parts. The battery pack case aims at providing a battery pack box with reasonable design, adjusting the original preparation method and the internal structure thereof, accelerating the production speed of the battery pack box and improving the yield of the battery pack box.
Description
technical field [0001] The invention belongs to the technical field of power battery packs for new energy vehicles, in particular to a battery pack box for new energy vehicles. Background technique [0002] At present, new energy vehicles are developing rapidly and their use is becoming more and more common. New energy vehicles generally use power battery packs as the power source, and the battery pack box is mainly equipped with battery modules, electrical components, upper casings and other parts. It can be seen that the battery pack box is the main bearing and sealing structure of the power battery pack. [0003] The battery pack box of the existing new energy vehicle power battery pack adopts a sheet metal welding structure. The material is generally a steel plate with a thickness of 1-2mm. Welded joints are sealed with sealant. The installation points on the battery pack box for the upper shell, battery module and electrical components require welding nuts or sheet m...
Claims
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IPC IPC(8): H01M2/10H01M50/249
CPCH01M50/20Y02E60/10
Inventor 张连峰
Owner 嘉兴埃特纳新能源科技有限公司