Battery module and laptop

Abstract

The invention discloses a battery module, a battery and a laptop. The battery module comprises a cell, a protecting circuit board, a battery protecting chip and safety device, wherein the safety device comprises a first pin, a second pin and a third pin, the safety device comprises an insulating thermal-conduction substrate attaching to the cell, the first pin and the second pin are arranged on the insulating thermal-conduction substrate at interval and electrically connected through a fuse, a heat generating module is further connected to the insulating thermal-conduction substrate, the third pin is electrically connected with the heat generating module, the first pin and the second pin are serially connected into the charge and discharge main loop of the cell, and the third pin is electrically connected with the battery protecting chip. By the arrangement, the battery module has the advantages that controllable protection such as overcurrent protection, overtemperature protection and overcharge protection is achieved; the circuit is simplified through the safety device, the use amount of electronic components is reduced, the area of the protecting circuit board cab be further reduced, design flexibility is achieved, and the miniaturization and lightening of electronic equipment especially laptops are benefited.

Description

technical field [0001] The invention relates to the field of batteries, in particular to a battery module and a notebook computer using the battery module. Background technique [0002] With the widespread use of various electronic devices, batteries are crucial as energy providers. For example, notebook batteries usually use lithium-ion batteries as power sources, among which lithium-ion batteries have the characteristics of high energy density and light weight. Due to the product characteristics of lithium-ion batteries, it is necessary to protect the battery from charging, discharging, and temperature to ensure safety during use. [0003] In the prior art, in order to be able to protect the battery cell from overcharging, overdischarging, overcurrent and short circuit. Taking the laptop battery as an example, it is usually necessary to use a temperature switch close to the battery to form a secondary protection with the safety device set on the protection circuit board....

AI Technical Summary

Problems solved by technology

[0004] Although the above-mentioned prior art can protect the overcurrent, overtemperature and overcharge of the battery, the temperature switch and the safety device each play their own roles. The functions of these two components are independent and single, and they need to be used at the same time to realize lithium battery protection. The protection of ion batteries, which will lead to an increase in the cost of battery products and space occupation

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