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Battery management device and portable computer

A portable computer and battery management technology, applied in the field of rechargeable battery management, can solve problems such as battery capacity attenuation, and achieve the effect of reducing capacity attenuation

Active Publication Date: 2011-07-06
LENOVO (BEIJING) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Therefore, the battery management method in the prior art always maintains the power of the battery at a relatively high level, resulting in attenuation of the battery capacity

Method used

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  • Battery management device and portable computer
  • Battery management device and portable computer
  • Battery management device and portable computer

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Embodiment Construction

[0046] In the embodiment of the present invention, whether to enter the battery storage state is judged by the mode judgment parameter, and in the battery storage mode, the remaining power of the battery is controlled below a certain level, so as to delay the capacity decay of the rechargeable battery of the portable computer.

[0047] The portable computer of the embodiment of the present invention includes a mainboard, a rechargeable battery connected to the mainboard, and a charging circuit for charging the battery, wherein the portable computer also includes a battery management device, such as figure 1 As shown, the battery management device includes:

[0048] a discharge circuit for discharging the battery;

[0049] An acquisition module, configured to acquire mode judgment parameters;

[0050] The first judgment module is used to judge whether to enter the battery storage mode according to the mode judgment parameter;

[0051] The first control module is configured to...

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Abstract

The invention provides a battery management device and a portable computer. The battery management device is used for managing a rechargeable battery arranged in the portable computer; the portable computer is provided with a charging circuit used for charging the battery; the battery management device comprises a discharging circuit used for discharging the battery, an acquisition module used for acquiring mode judging parameters, a first judging module used for judging whether the device is to be in a battery storage mode according to the mode judging parameters, and a first control module used for controlling the charging circuit or the discharging circuit to control the electric quantity of the battery in the battery storage mode so as to enable the electric quantity of the battery to be lower than a second electric quantity threshold; and the performance of the battery stored when the electric quantity is lower than the second electric quantity threshold is superior to that of the battery stored when the electric quantity is higher than the second electric quantity threshold. The battery management device postpones the capacity attenuation of the rechargeable battery of the portable computer.

Description

technical field [0001] The invention relates to the management of rechargeable batteries, in particular to a battery management device and a portable computer. Background technique [0002] As the performance of the portable computer is getting better and better, more and more home users have already regarded it as a must-have electronic product in the family. [0003] For portable computers, all are equipped with rechargeable batteries, so that portable computers can be used for a period of time when there is no external power supply. [0004] However, compared with business users, many home users are in a fixed place in most cases, and an external power supply provides power support for the portable computer. [0005] For existing portable computers, when it is powered by an external power supply, the battery will be taken out and stored, but in this way, the part covered by the battery will be exposed in the portable computer, and foreign objects (such as dust, etc.) wil...

Claims

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Application Information

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IPC IPC(8): H01M10/42G06F1/16
CPCY02E60/12H02J7/00H01M10/441G06F1/263H02J2007/0067H02J7/0063Y02E60/10H02J7/007182
Inventor 赵双成程孝仁林威志姚玲
Owner LENOVO (BEIJING) CO LTD
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