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Charging system

A charging system and charger technology, applied in current collectors, electric vehicles, electrical components, etc., can solve problems such as inability to communicate, and achieve the effects of reducing the number of terminals, improving reliability, and reducing the number of terminals

Inactive Publication Date: 2014-10-22
MAKITA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

That is, communication cannot be performed between a battery pack with a battery cell specification having a different inductance component and the above-mentioned charger.

Method used

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Experimental program
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Effect test

Embodiment approach 1

[0040] Below, based on Figure 1 ~ Figure 6 Next, the charging system 10 according to Embodiment 1 of the present invention will be described.

[0041]

[0042] Such as figure 1 As shown, the charging system 10 according to this embodiment includes a charger 20 and a battery pack 30 that is charged by the charger 20. In the charging system 10 described above, it is configured to be able to share a charging line for flowing a charging current between the charger 20 and the battery pack 30, and a microcomputer 24 for the charger 20 and a control microcomputer for the battery pack 30. 36 communication lines for sending and receiving data.

[0043]

[0044] The charger 20 is a device for charging the battery unit 32 (secondary battery) of the battery pack 30, such as figure 1 As shown, a box-shaped housing 20x is provided. In addition, a connection receiving portion 28 that connects the connection portion 38 of the battery pack 30 is formed at a position on the left side of the upper ...

Embodiment approach 2

[0108] Below, based on Figure 7 ~ Figure 14 Next, the charging system 40 according to the second embodiment of the present invention will be described.

[0109]

[0110] Such as Figure 7 As shown, the charging system 40 according to this embodiment is attached to a belt 41 configured to be able to be attached to the body, and is composed of a charger 20 having a dedicated cable 43 and a tool holder 45, and a tool holder capable of connecting with the charger 20 45 connected to the adapter 50 (refer to Figure 8 ), an electric tool 60 connected to the adapter 50, and a battery pack 30 connected to the electric tool 60. Furthermore, the adapter 50, the electric tool 60, and the battery pack 30 can be integrally removed from the tool holder 45 of the charger 20, and the electric tool 60 can be used for screw tightening operations and the like. Such as Picture 9 As shown, the adapter 50 and the electric tool 60 are electrically connected through the connector CN1, and the electric...

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PUM

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Abstract

In a charging system in which a charging current flows to a cell via power supply lines in a state where a charger and a battery pack are connected, two FETs for opening and closing a route in each power supply line are provided both at the charger side and the battery pack side. When the charger and the battery pack are connected to each other and FETs at the charger side and FETs at the battery pack side are set to be open, the power supply lines between FETs at the charger side and FETs at the battery pack side can be used as a communication line.

Description

Technical field [0001] The present invention relates to a charging system that is configured such that a charger and a battery pack can be connected directly or indirectly via other equipment, and when the charger and the battery pack are connected, a charging current can flow to the battery pack through a power cord. The battery unit of the battery pack. Background technique [0002] Patent Document 1 describes a technology related to a charger for charging a battery pack used as a power source of an electric tool. [0003] The charger of Patent Document 1 includes a pair of power supply terminals and a plurality of communication terminals. When the battery pack is slidably mounted with respect to the charger, the power supply terminals and communication terminals of the battery pack are connected to the power supply of the charger. It is constructed by connecting terminals and communication terminals. As a result, in a state where the battery pack is connected to the charger, c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00
CPCH02J7/0045H02J7/0031H02J7/0036H01M10/4257Y02E60/10
Inventor 铃木均野田将史
Owner MAKITA CORP