Improvements to portable power supply

A technology of voltage and power, applied in the field of portable power supply, can solve problems such as unsafe battery packs

Active Publication Date: 2016-12-14
7RDD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disclosure also prevents the use of battery packs

Method used

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  • Improvements to portable power supply
  • Improvements to portable power supply
  • Improvements to portable power supply

Examples

Experimental program
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Embodiment Construction

[0040] first reference figure 1 , which shows some electric tools 1 as examples of various electric tools that can utilize the portable battery pack according to the present invention. Examples given include a drill 2 , a chain saw 4 , and a flashlight 6 . In each case, the power tool has a working part 8 which is powered to operate. In the case of chainsaws and drills, likewise in the housing 10 there is an electric motor moving the working part 8, while in the torch a bulb 12 is provided to allow light to be emitted from the face 14 of the torch. In each case, the body is provided with electrical connection means, generally in the form of pins 16, positioned so as to be received in matching sockets provided in the battery pack 18, The battery pack 18 may be mechanically positioned with respect to the housing, as shown in phantom. When the electrical connection has been made (typically automatically when the battery pack is properly mechanically positioned with respect to ...

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PUM

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Abstract

The invention relates to a power tool and battery pack assembly including a battery pack (18) for connection with the power tool (1) to provide power for the operation of the power tool (1) when connected thereto. The battery pack (18) includes a plurality of power cells and connection means (40, 42) are provided to allow the selective supply of power at least a first or second voltage level to the power tool (1) from the battery pack (18).

Description

technical field [0001] The invention to which this application relates is a portable power source, generally in the form of what is referred to as a battery pack, which can be detachably attached to a powered object, such as a power tool, in order to allow the power tool to be becomes operable while at least partially charging. Background technique [0002] It is known to provide battery packs that can be attached to power tools to allow power to operate the tool. Traditionally, for tools such as drills, reciprocating saws, etc., two types of specific modes will be provided, a first type connected to mains power and a second type in which power is supplied from a connected battery pack , so the second version allows the tool to be used in locations where it is not easy to connect to the mains. [0003] A battery pack generally includes a plurality of unit cells connected to each other to provide power therefrom. The unit cells are generally arranged in a sealed casing, an...

Claims

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Application Information

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IPC IPC(8): B25F5/00H01M2/10H01M2/30H01M50/209H01M50/247H01M50/269H01M50/55
CPCB25F5/00B25F5/008H01M50/247H01M50/269H01M50/209H01M50/55Y02E60/10H01M50/00H01M2220/30
Inventor R·巴克
Owner 7RDD
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