Voltage Tester Latch Assembly for Secure Probe Attachment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Handheld voltage testers with snap connections for probes are often not robust, making them unwieldy and difficult to manage in certain situations.
Innovation Solution
A handheld voltage tester with a removable probe coupled to the main body via a cord, utilizing a latch assembly with a socket and mating protrusion for secure attachment, and a readout panel with selectable backlight and test feature buttons for easy operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If snap connections are used to connect probes to the main body, then the device structure is simple, but the connection is not robust and the device becomes unwieldy to handle
Solution Approach 1:
The probe connection system is segmented into modular components: a cord with connector, a receptacle on the main body, and a latch assembly with movable and fixed portions. This segmentation allows each component to be optimized independently - the receptacle provides structural support while the latch assembly provides secure engagement, resolving the contradiction between simple structure and robust connection.
Solution Approach 2:
The latch assembly introduces dynamic elements - the movable portion can be actuated to engage or disengage from the fixed portion, transforming the connection from static to controllable. This dynamic mechanism enables secure attachment when needed while allowing easy detachment, improving both connection robustness and ease of operation without complicating the overall structure.
2Ease of operation
If probes are made removable and cord-connected, then the probes are easier to manage, but the connection mechanism becomes more complex
Solution Approach 1:
The latch assembly employs a nested structure where the movable portion fits within or alongside the fixed portion, with engagement surfaces nested together. This nesting minimizes the space required for the connection mechanism and reduces the number of external components, thereby improving probe manageability without proportionally increasing device complexity.
Solution Approach 2:
The latch assembly is designed to be self-actuating through user manipulation - the movable portion is directly operable by the user to engage or disengage the connection. This self-service design eliminates the need for additional actuating mechanisms, motors, or complex control systems, maintaining simplicity while enabling easy probe attachment and detachment.
3Reliability
If a robust latch assembly is used to secure probes, then connection reliability is improved, but the device becomes more difficult to assemble
Solution Approach 1:
The latch assembly is segmented into the fixed portion (integrated with the receptacle) and the movable portion (on the cord connector). This segmentation allows the complex latch mechanism to be manufactured as separate, pre-assembled modules that can be easily installed into the main body, reducing overall assembly difficulty while maintaining connection stability.
Solution Approach 2:
The cord connector serves as an intermediary component that houses the movable latch portion and interfaces with both the user and the main body receptacle. This intermediary structure simplifies assembly by providing a pre-integrated unit that combines the connector, latch mechanism, and probe attachment, reducing the number of discrete assembly steps required.
Data Source
AI summary
A tester includes a main body and a removable probe. The main body includes a main body probe and a front panel including selectable options for selecting a tester function. The removable probe may be coupled to the main body via a cord. The removable probe is fixable to the main body via a latch assembly. The latch assembly includes a socket disposed on one of the removable probe or the main body and a mating protrusion disposed at the other of the removable probe or the main body.