Modular battery pack

Abstract

The invention discloses a modular battery pack, comprising a sheet metal box body, a handle, a power indicator lamp, a protective top cover, an insulating plate, a fixing bracket, a battery pack and abuffer pad. The protective top cover is connected with the upper wall inside the sheet metal box. The insulating plate is connected to both sides of the inside of the sheet metal box, the insulatingplate is connected to a fixing bracket, the fixing bracket is connected to a battery pack, and the cushion is connected to both sides of the connecting surface of the insulating plate and the sheet metal box. A battery management system BMS is arranged on one side of the outside of the sheet metal box, and a communication interface and a charging port are arranged on the battery management systemBMS. An electrically conductive copper sheet is arranged between the insulating plate and the fixing bracket, and a shaped nickel strip is arranged between the electrically conductive copper sheet andthe fixing bracket. The invention can prevent the battery from being overcharged or overdischarged, and improve the safety of the battery pack. Copper plated with nickel to improve the safety of thebattery pack, and can effectively reduce the module resistance.

Description

technical field [0001] The invention relates to the technical field of battery packs, in particular to a modular battery pack. Background technique [0002] As people's awareness of green environmental protection becomes stronger and stronger, new energy is widely accepted and utilized by people, and new energy has become the focus of the public. Traditional electric bicycles use lead-acid batteries, which have a short service life, are not energy-saving, and are not environmentally friendly. Lithium batteries have attracted widespread attention in the field of transportation due to their environmental protection, pollution-free, long cycle life, high operating voltage, and high energy ratio. [0003] The modular batteries in the prior art often generate heat and heat during charging or driving, which poses certain potential safety hazards. Most of the heating of the battery pack is due to excessive resistance, which not only accelerates the loss of battery power, shortens ...

AI Technical Summary

Problems solved by technology

[0002] As people's awareness of green environmental protection becomes stronger and stronger, new energy is widely accepted and utilized by people, and new energy has become the focus of the public. Traditional electric bicycles use lead-acid batteries, which have a short service life, are not energy-saving, and are not environmentally friendly. Lithium batteries have attracted widespread attention in the field of transportation due to their environmental protection, pollution-free, long cycle life, high working voltage, and high energy ratio.

[0003] The module batteries in the prior art often generate heat and heat during charging or driving, and there are certain potential safety hazards

The heating of the battery pack is mostly due to excessive resistance, which not only accelerates the loss of battery power, shortens the service life of the battery pack, but also increases potential safety hazards.

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