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Battery pack for electrical power tool

A technology of electric tools and battery packs, which is applied in the direction of manufacturing tools, secondary batteries, secondary battery testing, etc., and can solve problems such as ignorance

Pending Publication Date: 2022-01-11
德国安海公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this is disadvantageous for the user of the power tool, since the power tool is suddenly no longer available, possibly without the user knowing the reason for this at all

Method used

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  • Battery pack for electrical power tool
  • Battery pack for electrical power tool
  • Battery pack for electrical power tool

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0062] figure 1 An exemplary embodiment of a power tool 1 according to a further development is shown schematically, which is designed, for example, as a battery-operated jigsaw. However, the improved solution is not limited to this power tool. In particular, all electric tools with a motor can be designed according to the refinement, which motors can be powered by means of the battery pack 2 , in particular according to the refinement of the battery pack 2 .

[0063] In some embodiments, the power tool 1 may have an output unit 6' to output visual, audible and / or tactile signals to a user of the power tool 1 .

[0064] An electric tool 1 has a battery pack 2 according to an improved solution, which is figure 1 In the state shown, it is mechanically and electrically connected to the power tool 1 .

[0065] figure 2 Schematically shows a battery pack 2 according to an improved solution, which can be used, for example, in figure 1 in the power tool 1. image 3 show figu...

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PUM

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Abstract

The invention relates to a battery pack (2) for an electric power tool (1), comprising at least one battery cell (3) and a monitoring circuit (4) which is designed to determine an electrical or thermal measured variable of the battery pack (2). The battery pack (2) has a control unit (5) which is designed to determine a power consumption characteristic of the battery pack (2) as a function of the electrical or thermal measurement variable, to predict a future power consumption characteristic of the battery pack (2) as a function of the determined power consumption characteristic, to check at least one predetermined acceptance condition as a function of the predicted power consumption characteristic, and introducing measures relating to the notification of the user depending on the result of the checking.

Description

technical field [0001] The invention relates to a battery pack for a power tool, a power tool with such a battery pack and a method for operating a battery pack for a power tool. Background technique [0002] The maximum power output of a battery pack for a power tool to the power tool is limited. In known electric tools, the battery management system of the electric tool or the battery pack cuts off the power supply as soon as a critical limit value is reached. However, this is disadvantageous for the user of the power tool, since the power tool is suddenly no longer available, possibly without the user knowing the reason for this at all. Contents of the invention [0003] Against this background, it is an object of the present invention to provide an improved solution for a battery pack for a power tool, by which the comfort of the user of the power tool is increased. [0004] This object is achieved by the corresponding objects of the independent claims. Advantageous...

Claims

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Application Information

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IPC IPC(8): H01M10/48H01M10/42
CPCH01M10/48H01M10/4285H01M2010/4271B25F5/00Y02E60/10
Inventor M·坦恩哈博M·斯特纳德
Owner 德国安海公司
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