Battery Locking Lever Mechanism for Vibration-Stable Tool Connection
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Solution Overview
Problem
Existing systems with machine tools and accumulators experience mechanical stresses such as vibrations, leading to relative movements between the machine tool and the accumulator, which can damage the mechanical and electrical connection components.
Innovation Solution
Incorporating a locking device with at least a first and second fitting lever element in the accumulator, allowing it to be reversibly locked to the machine tool, thereby reducing relative movement and enhancing the connection between the two.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a simple plug-socket connection is used to connect the accumulator to the machine tool, then the ease of operation is improved, but the reliability deteriorates due to damage from vibrations and relative movements
Solution Approach 1:
The locking device is divided into multiple functional components: a locking lever with locking elements, a spring element for applying force, and a actuating mechanism. This segmentation allows each component to perform its specific function efficiently while working together to provide both easy operation and reliable connection.
Solution Approach 2:
The spring element is pre-loaded to automatically apply locking force as soon as the accumulator is connected to the machine tool. This preliminary action ensures that the connection is immediately secured against vibrations without requiring additional manual steps, maintaining both ease of operation and reliability.
2Reliability
If a rigid locking mechanism is used to prevent relative movement, then the reliability is improved, but the device complexity increases
Solution Approach 1:
The locking device uses a dynamic spring element that automatically adjusts the locking force based on the connection state and vibration conditions. This dynamic mechanism provides reliable connection stability without requiring a complex rigid structure, as the spring adapts to different operational conditions.
Solution Approach 2:
The locking device is designed to automatically engage and disengage without manual intervention. The spring element self-adjusts to maintain proper locking force, and the actuating mechanism automatically releases the lock when needed. This self-service capability reduces the need for complex control systems while maintaining reliability.
3Reliability
If the accumulator and machine tool are firmly connected to prevent vibrations, then the reliability is improved, but the ease of operation deteriorates due to difficulty in detachment
Solution Approach 1:
The actuating mechanism is designed to apply a preliminary releasing action that overcomes the spring locking force. When the user activates the release mechanism, it pre-compsensates for the strong locking force by storing energy in a release spring, making detachment easy despite the firm connection during operation.
Solution Approach 2:
The locking device operates in periodic cycles: automatic locking upon connection, sustained locking during operation, and automatic releasing upon actuation. This periodic action allows the system to maintain strong connection stability during use while enabling easy detachment when needed, switching between these states smoothly.
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 locking device provides a more stable connection between the machine tool and the accumulator, reducing the risk of damage from vibrations and ensuring a secure power supply.
Implementation Method 1
The second lever element can be designed to be elastic. This can create a preload in the locking device.
Data Source
Figure 1
Figure 2
Figure 3a
AI summary
The invention relates to a system comprising a machine tool and an accumulator for supplying the machine tool with electrical energy. Accumulator for supplying a machine tool with electrical energy. The accumulator contains a locking device for releasably connecting the accumulator to the machine tool, the locking device containing at least a first and a second lever element which are connected to each other in an articulated manner, so that the locking device is movable in a reversible manner from a locking position into a release position, wherein, in the locking position, the accumulator is rigidly connected to the machine tool and, in the release position, the accumulator can be removed from the machine tool.