Top-Mounted Battery Compartment Layout for Slimmer Power Tools

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Solution Overview

Problem

The bulkiness of powerful batteries in power tools leads to cumbersome housings, reducing maneuverability and safety due to increased size and weight.

Innovation Solution

A battery compartment is designed to be slimmer by positioning it at the top side of the housing with short sides parallel to the housing ends, and skewing it backwards at an angle to facilitate easy battery insertion and removal.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Power

If powerful batteries are used to increase power, then power is improved, but the housing becomes bulkier and maneuverability deteriorates

Engineering Contradiction:
Improvebattery powerVSAvoidmaneuverability
Core Design Contradiction:
PowerVSEase of operation

Solution Approach 1:

The battery compartment is positioned at the top side of the housing rather than in traditional side or bottom positions. By orienting the compartment with its short sides parallel to the front and rear ends of the housing, the battery occupies vertical and longitudinal space efficiently, reducing the housing width and improving maneuverability while maintaining high power capacity

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Data Source

PatentEP3673532B1Battery compartment for power tools
Publication Date: 2025.05.14 GLOBE (JIANGSU) CO LTD
  • EP3673532B1 patent drawingFigure 1~2
  • EP3673532B1 patent drawingFigure 3~4

AI summary

The present invention relates to a housing (2) for power tools such as chainsaws, blowers, trimmers or hedge trimmers. The housing (2) has a front end (4), at which a tool (20) of the power tool is attached. The housing furthermore comprises a rear end (16) and a top side (18). A battery compartment (14) is provided at the top side (18) of the housing (2) and extends inside the housing (2) and has a shape adapted to receive a battery (6). The shape is essentially cuboidal and has a rectangular cross section looking at the top side (18) of the housing (2). The short sides (22) of the rectangular cross section are substantially parallel with the rear end (16) and the front end (4) of the housing (2).