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Batteries for electric tools

一种电动工具、电池的技术，应用在二次电池、制造工具、电池电路装置等方向，能够解决历史数据不存在、无法把握电动工具用电池等问题，达到抑制消耗电力、消除空白期间的效果

Inactive Publication Date: 2012-07-04
MAKITA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The environment in which the electric tool battery is placed, such as the surrounding temperature, etc. has a great influence on the life of the electric tool battery. However, since there is no historical data during the sleep mode period, it is impossible to grasp the life span of the electric tool during this period. What kind of environment is the battery in?

Method used

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  • Batteries for electric tools
  • Batteries for electric tools
  • Batteries for electric tools

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0036] Below, based on Figure 1 to Figure 8 The electric tool battery 10 according to Embodiment 1 of the present invention will be described.

[0037]

[0038] Such as figure 1 As shown, the electric tool battery 10 is a battery used as a power source of the electric tool 30 by being connected to the electric tool 30 . and, if figure 2 As shown, the battery 10 for an electric tool is configured to be charged by the charger 40 by being connected to the charger 40 .

[0039] Such as image 3 As shown in the circuit diagram of , the electric tool battery 10 includes a plurality of battery cells 12 that are secondary batteries such as lithium ion batteries, and is configured to obtain a predetermined voltage by connecting these battery cells 12 in series. Furthermore, a shunt resistor 14 that is a current detection element is provided on a negative line 11n of the battery 10 for an electric tool.

[0040] The shunt resistor 14 is set to have a small resistance value in o...

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PUM

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Abstract

The invention provides a battery for an electric tool, aiming to obtain historical data of the battery condition even during non-use of the battery. The battery is sush a battery that: during use of the battery, a microcomputer (24) is switched to an active mode capable of controlling charging or discharging so as to enable a peripheral device (21, 22, 26, 27) to work, and during not-use of the battery, is witched to a sleep mode for stopping the peripheral device (21, 22, 26, 27). During the sleep mode, the microcomputer (24) periodically switches to the active mode so as to enable the peripheral device (21, 22, 26, 27) to work. The microcomputer (24) can detect the battery condition via the peripheral device (21, 22, 26, 27).

Description

technical field [0001] The present invention relates to a battery for an electric tool that can be charged by a charger and used as a power source of the electric tool. Background technique [0002] Patent Document 1 describes a related conventional electric tool battery. [0003] In the battery for electric tools in Patent Document 1, when the battery is in use, that is, when the charger is connected, or the electric tool is connected and the main switch of the tool is turned on, the internal microcomputer turns on the power supply of the peripheral circuit and switches to control charging or charging. The activation mode of the discharge. [0004] Furthermore, when the electric tool battery is not being used, the microcomputer is configured to switch to the sleep mode by turning off the power supply of the peripheral circuit. Therefore, when the electric tool battery is not in use, power consumption of the electric tool battery can be suppressed. [0005] Patent Documen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/42B25F5/00
CPCY02E60/12H01M10/482H01M10/0525H01M10/425H01M10/4207Y02E60/10B25F5/00H01M10/44H02J7/00G01R31/36
Inventor 野田将史
Owner MAKITA CORP