Handheld Power Tool Battery Interface Damping
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Solution Overview
Problem
Existing handheld power tools lack effective protection against vibrations during operation, which can lead to instability and reduced performance.
Innovation Solution
A handheld power tool design featuring a battery interface with a separate damping unit that is partially pivotable, incorporating a rocker element with a first and second arm, and a damping element, which reduces vibrations by engaging the battery pack with the housing upon insertion, providing a secure and frictional connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the battery pack is detachably connected to the housing without a damping unit, then the battery interface is simple in structure, but vibrations during operation cause instability and reduced performance
Solution Approach 1:
The battery interface is segmented into distinct functional components: a locking unit for mechanical connection and a separate damping unit for vibration absorption. This segmentation allows each component to be optimized independently - the locking unit provides secure attachment while the damping unit specifically addresses vibration issues, resolving the contradiction between structural simplicity and operational reliability
Solution Approach 2:
The damping unit acts as an intermediary element between the battery pack and housing. It mediates the vibration forces by absorbing and dissipating them through its pivotable rocker element and damping element, preventing direct transmission of vibrations to the battery interface while maintaining the simplicity of the overall connection structure
2Object-affected harmful factors
If a damping unit is added to the battery interface, then vibrations are effectively reduced, but the device complexity increases
Solution Approach 1:
The damping unit utilizes parameter changes in the pivotable rocker element, which pivots about an axis of rotation to change its configuration dynamically. This allows the damping element to engage and disengage based on operational conditions, providing effective vibration reduction while maintaining a relatively simple structure that only adds a few moving parts rather than a complex mechanism
Solution Approach 2:
The damping unit incorporates a pivotable rocker element that dynamically adapts to vibration forces. The dynamic pivoting motion allows the damping element to actively respond to and absorb vibrations during operation, providing effective harm reduction without requiring a complex active control system or multiple rigid components
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The damping unit effectively absorbs and reduces vibrations, ensuring the battery pack is securely fixed within the housing, enhancing the tool's operational stability and protection against mechanical stress.
Implementation Method 1
a damping element (142), which is designed to frictionally engage the battery pack (60)
Implementation Method 2
the damping unit effectively absorbs and reduces vibrations, ensuring the battery pack is securely fixed within the housing
Data Source
Figure 1
Figure 2a~2b
Figure 2c~2d
AI summary
The invention relates to a hand-held power tool comprising a housing, a battery pack for powering the power tool, and a battery interface for detachably connecting the battery pack to the housing, wherein the battery interface includes an operable locking unit. It is proposed that the battery interface include a damping unit, which is at least partially pivotable.