Accumulator group and handheld electric tool

A technology for hand-held electric tools and battery packs, applied in lithium batteries, battery pack parts, non-aqueous electrolyte batteries, etc., can solve the problems of high installation costs, achieve simple mechanical connection and electrical connection, realize tolerance compensation, and high reliability Effect

Inactive Publication Date: 2008-09-17
麦太保有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage in this case is the relatively high installation costs

Method used

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  • Accumulator group and handheld electric tool
  • Accumulator group and handheld electric tool
  • Accumulator group and handheld electric tool

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] figure 1 An exploded view is shown of the core pack, generally designated 12 (lower figure), and printed circuit board 14 (middle figure) with lead plate 16 and electronics housing 18 (upper figure).

[0023] The core pack 12 in this case comprises eight battery cells 20, of which every two battery cells 20' and 20" are connected in parallel to form a battery cell block. The battery cells 20 are lithium-ion cells which, unlike nickel-cadmium cells, can be connected in parallel. The battery cell block is composed of battery cells 20' and 20", which are connected in series front and rear respectively. The battery cells 20 are inserted into the battery holder 22 and the battery cells 20 are separated from each other by the battery holder, so that the battery cells 20 do not come into contact with each other, since otherwise a short circuit would result. In this case, the poles of the individual battery cells 20 are freed by the battery holder 22 so that electrical contact...

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PUM

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Abstract

The invention relates to a rechargeable battery pack, in particular for an electrical hand tool device, comprising at least two series-connected rechargeable battery cells (20) and/or rechargeable battery cell blocks and an electronics unit having a printed circuit board (14), wherein sheet metal conductors (16) for electrically connecting the series-connected rechargeable battery cells (20) and/or rechargeable battery cell blocks are provided, wherein the sheet metal conductors (16) are connected directly to the printed circuit board (14).

Description

technical field [0001] The invention relates to a battery pack, in particular for hand-held electric tools, comprising at least two battery cells connected in series and / or battery cell blocks and an electronic unit with a printed circuit board, in which there are Or the lead plate to which the battery cell block is electrically connected. Background technique [0002] Rechargeable battery packs are widely used for operating hand-held electric tools, since the rechargeable battery devices are operated with a high degree of flexibility and in particular are not dependent on an existing power supply and can therefore also be operated outdoors without being limited by power supply problems. In this respect, the battery arrangement has a rechargeable battery in a battery housing, which can be connected to the housing of the electric hand tool, wherein when the two housings are connected, the electric motor is electrically connected to the battery pack and supplied by it. In ord...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/10H01M50/529H01M50/503H01M50/509H01M50/51H01M50/516H01M50/522H01M50/528
CPCH01M10/46H01M10/425H01M10/052H01M2/22H01M2/105H01M2/204Y02E60/10H01M50/213H01M50/528H01M50/522H01M50/516H01M50/509H01M50/51H01M50/503
Inventor 拉尔夫·利尔施沃尔夫冈·斯蒂克尔约亨·格拉贝尔
Owner 麦太保有限公司
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