Safe battery pack shunt circuit structure

Abstract

The invention discloses a safe battery pack shunt circuit structure. Two ends of batteries are fixed in fixed through holes in connecting plates through connecting plates, the batteries are mutually connected in parallel through conducting pieces arranged in the fixed through holes and extend to be guided out of the side surfaces of the connecting plates, the batteries fixedly arranged on the connecting plates form battery groups, and PCB boards are electrically connected with extending parts so as to connect the battery groups in parallel to form a battery pack; the apertures of the fixed through holes are fit with the batteries, so that the batteries can be always smoothly and steadily and fixedly arranged on the connecting plates even during vibration in a use process of the battery pack, and the relative displacement is prevented; fuse protectors arranged on the PCB boards can be automatically fused when the current supplied by the batteries is excessive, and the electric connection of the abnormal battery groups are cut off, so that a dangerous accident is further avoided; and shells containing the batteries are arranged to be a dual-layer structure, and a second shell located at an inner layer is a polyvinyl chloride flame-retardant layer, so that the spontaneous combustion of the battery pack when the batteries are in a superheat state can be avoided.

Description

technical field [0001] The invention relates to a battery parallel circuit structure, in particular to a safe battery pack parallel circuit structure. Background technique [0002] With the increasing application of batteries and people's continuous pursuit of high-capacity battery packs, there are more and more fields where batteries are combined in batches to form battery packs, and then the battery packs are connected to each other to form battery packs for use. Once a large external force or short-circuit of the internal circuit is encountered during the discharge process, it is very easy to cause fire or circuit paralysis, causing major safety hazards to users. Therefore, a reliable battery pack often requires a safe and reliable internal circuit layout and connection structure. Contents of the invention [0003] In order to solve the deficiencies of the prior art, the purpose of the present invention is to provide a stable structure, which can automatically break th...

AI Technical Summary

Problems solved by technology

[0002] With the increasingly wide application of batteries and people's continuous pursuit of high-capacity battery packs, there are more and more fields where batteries are combined in batches to form battery packs, and then the battery packs are connected to each other to form battery packs for use. Once a large external force or internal circuit short circuit is encountered during the discharge process, it is very easy to cause fire or circuit paralysis, causing major safety hazards to users. Therefore, a reliable battery pack often requires a safe and reliable internal circuit layout and connection structure

Images