Spring-Loaded Battery Contacts for Vibration-Proof Power Tool Connection
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Solution Overview
Problem
Vibrations and shocks in power tools and rechargeable batteries can lead to relative movement and breakage of electrical contacts, causing wear, premature deterioration, and potential sparking or arcing.
Innovation Solution
A connection apparatus with a holding and receiving apparatus and compensating elements, including springs or elastically deformable materials, to compensate for vibrations and shocks, ensuring a vibration- and shock-proof connection between the rechargeable battery and power tool.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the rechargeable battery is connected to the power tool via force-fitting electrical contacts, then electrical energy can be transmitted from the battery to the power tool, but vibrations and shocks cause relative movement and breakage of the contacts leading to wear and premature deterioration
Solution Approach 1:
The patent applies beforehand cushioning by introducing a compensating element (spring or elastomer) between the connection element and the holding and receiving apparatus. This compensating element is pre-configured to absorb vibrations and shocks before they can damage the electrical contacts, thereby protecting the connection from relative movement and breakage while maintaining reliable electrical energy transmission
2Stability of the object's composition
If the electrical contacts are rigidly connected, then structural stability is improved, but vibrations and shocks cannot be compensated for, causing contact breakage and sparking
Solution Approach 1:
The patent applies dynamics by replacing the rigid connection with a dynamic compensating element that can adapt to vibrations and shocks. The spring or elastomer allows the connection element to move dynamically within the holding and receiving apparatus, absorbing mechanical stresses while maintaining stable electrical contact and preventing sparking
3Use of energy by moving object
If a spring-mounted clip and insertion element are used for force-fitting connection, then electrical energy transmission is enabled, but the connection is vulnerable to relative movement and breakage under vibrations and shocks
Solution Approach 1:
The patent applies the intermediary principle by introducing a compensating element as a mediator between the connection element and the holding and receiving apparatus. This intermediary component absorbs vibrations and shocks, protecting the electrical contacts from relative movement and breakage while allowing continuous electrical energy transmission from the battery to the power tool
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
Prevents relative movement and breakage of electrical contacts, reducing wear and preventing sparking or arcing, thereby enhancing the reliability and durability of the connection.
Implementation Method 1
the first and second connection elements are connected to the holding and receiving apparatus by at least one compensating element in such a way that a relative movement in at least one direction between the first and second connection element and the holding and receiving apparatus can be compensated for
Implementation Method 2
the respective electrical contacts of the power tool and of the rechargeable battery abut against one another with force fit. In this case, such force-fitting connections usually consist of a spring-mounted clip
Data Source
AI summary
A rechargeable battery, preferably as a releasable energy supply for a power tool, comprising at least one energy storage cell and a connection apparatus for releasably connecting the rechargeable battery to a power tool, the connection apparatus comprising at least one first, second and third connection element. The connection apparatus includes a holding and receiving apparatus with a substantially elongate chamber for at least partially receiving the first, second and third connection elements, wherein the first and second connection elements are connected to the holding and receiving apparatus by at least one compensating element in such a way that a relative movement in at least one direction between the first and second connection element and the holding and receiving apparatus can be compensated for, and wherein the first and second connection elements are connected to the third connection element in such a way that a relative movement in at least one direction between the third connection element and the holding and receiving apparatus can be compensated for.