Portable Meter Battery Shaft for Compact Secure Connection
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Solution Overview
Problem
Existing measuring devices for electrical quantities, particularly portable ones, face complexity and lack of compactness in connecting electrical energy storage devices, which hinders functionality and construction efficiency.
Innovation Solution
A measuring device with a housing body featuring a shaft-like or multi-sided recess for receiving an energy storage device, providing a secure and compact connection through both electrical and mechanical means, including a guide device for easy insertion and removal, and a safety mechanism to prevent accidental disconnection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If conventional connection methods for energy storage devices are used, then electrical connection is achieved, but the device becomes complex and not compact
Solution Approach 1:
The patent combines the electrical connection and mechanical retention functions into a single integrated spring mechanism. The spring element simultaneously provides electrical contact through its conductive body and mechanical retention through its elastic clamping force, eliminating the need for separate connection components and reducing overall complexity while maintaining reliability
Solution Approach 2:
The spring element serves multiple functions: it provides electrical conduction, mechanical retention through elastic clamping, and shock absorption. This multi-functional design replaces what would traditionally require multiple separate components, thereby reducing device complexity while ensuring reliable connection
2Volume of stationary object
If conventional connection methods are used, then electrical connection is established, but the design is not compact
Solution Approach 1:
The spring element is nested within the housing structure, with its ends anchored to the housing walls. This nesting approach allows the connection mechanism to be integrated into the existing housing volume without requiring additional external components, achieving compactness while maintaining connection stability through the spring's elastic retention force
Solution Approach 2:
The electrical connection and mechanical retention functions are merged into a single spring element that fits within the housing volume. This integration eliminates the need for separate connection components, achieving compact design while ensuring reliable connection through the spring's dual functionality
3Ease of operation
If simple insertion is allowed, then ease of operation is improved, but accidental disconnection may occur
Solution Approach 1:
The spring element provides dynamic retention through its elastic properties, allowing easy insertion of the energy storage device while automatically exerting clamping force to prevent accidental disconnection. The spring's dynamic response to insertion force and subsequent relaxation provides both ease of operation and connection security
4Volume of stationary object
If compact connection is achieved, then device size is reduced, but manufacturing complexity may increase
Solution Approach 1:
The spring element's material properties and geometric parameters are optimized to achieve the required combination of electrical conductivity, elastic retention force, and compact size. By carefully selecting spring material, wire diameter, and coil dimensions, the design achieves compact connection while maintaining manufacturability through standard spring manufacturing processes
Data Source
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AI summary
Measuring instrument (1) for measuring electrical quantities, in particular electrical voltages and/or electrical currents, comprising: - a housing body (2) comprising a housing space, - at least one measuring device arranged or formed in the housing space for measuring an electrical quantity measurable by means of the measuring instrument (1), wherein the housing body (2) has at least one receiving area (4) for the detachable receiving of an electrical energy storage device (3), wherein the receiving area (4) is formed as a shaft-like or shaft-shaped recess (5) in the housing body (2).