Welding-free quick plug type device for electric core multi-module assembly

Abstract

The invention discloses a welding-free quick plug type device for electric core multi-module assembly. The welding-free quick plug type device comprises a housing with a plurality of positioning holesfor placing electric cores, an upper conductive plate and a lower conductive plate which are separately arranged at the upper end and the lower end of the housing, wherein a plurality of elastic lugbosses and elastic connecting blocks which are arranged at the peripheries of the elastic lug bosses in a surrounding mode are arranged on the upper conductive plate; the elastic connecting blocks aredivided into inclined sections and horizontal sections; a plurality of through holes I which are in one-to-one correspondence to the positioning holes in position are formed in the lower conductive plate; and a plurality of limiting blocks and elastic clamping blocks which point towards the inner parts of the positioning holes for clamping the electric cores are arranged around the through holesI in a surrounding mode. The quick plug type device greatly provides linking reliability of a battery pack electric core, improves safety reliability of the battery pack, and avoids various risks in awelding process.

Description

technical field [0001] The invention relates to the field of new energy lithium battery modules, in particular to a welding-free quick-plug device for assembling battery cell multi-modules. Background technique [0002] At present, the welding process is mainly used to assemble the positive and negative confluence devices of the battery. In addition to the unavoidable internal stress, virtual welding, false welding and other defects in the welding process, there is also the risk of welding through the positive electrode protective film of the battery. This is in It is difficult to avoid in the mass production process, and the consequences of welding through will directly lead to battery leakage, which in turn will cause changes in battery performance, such as overcharge, overdischarge, overtemperature, etc. The battery pack will catch fire or even explode due to overheating during charging and discharging, external temperature, electrical contact sparks, etc. After welding,...

AI Technical Summary

Problems solved by technology

[0002] At present, the welding process is mainly used to assemble the positive and negative confluence devices of the battery. In addition to the unavoidable internal stress, virtual welding, false welding and other defects in the welding process, there is also the risk of welding through the positive electrode protective film of the battery. This is in It is difficult to avoid in the mass production process, and the consequences of welding through will directly lead to battery leakage, which in turn will cause changes in battery performance, such as overcharge, overdischarge, overtemperature, etc. The battery pack will catch fire or even explode due to overheating during charging and discharging, external temperature, electrical contact sparks, etc.

After welding, the electroplating layer on the surface of the welding position is completely destroyed, and the anti-corrosion performance is greatly reduced. The corrosion of the solder joints and the vibration of the vehicle body accumulate over time, and there is a risk of the solder joints falling off or the welding position becomes smaller, resulting in no power output of the battery core, which is even more serious. The over-current capability of the contact point may be reduced, and heat will be generated, causing the battery pack to catch fire.

Eventually, the overall performance of the battery pack will be reduced, the safety performance will be reduced, and the requirements for the use of the whole vehicle will be reduced.

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