Compact Electrical Connection Tester Using Constant Current
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional multifunction testing devices for determining electrical connection status are bulky, costly, energy-intensive, and require complex setup procedures, making them inconvenient for use, especially in clean room environments.
Innovation Solution
A compact testing device with a measuring unit, testing board, and connecting interface that supplies a constant electric current to a device under test for a preset duration to measure voltage, determining the electrical connection status based on the measured voltage difference, utilizing a microcontroller, charge time measurement unit, and analog-to-digital converter, with a gripping assembly and drive component for efficient DUT placement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a multifunction testing device is used to determine electrical connection status, then the testing function is provided, but the device becomes bulky and costly
Solution Approach 1:
The patent extracts the specific function of determining electrical connection status from a multifunction testing device, creating a dedicated single-function device. This extraction allows the device to be minimized in size and cost while maintaining the core testing capability, eliminating unnecessary components and features that would increase bulk and expense.
Solution Approach 2:
The patent employs a disposable probe card design where the probe card can be easily replaced. This approach allows the main testing device to remain compact and cost-effective, while the probe card serves as a consumable component that can be discarded after use, reducing the need for expensive, durable, and bulky equipment.
2Adaptability or versatility
If a multifunction testing device is used to determine electrical connection status, then the testing function is provided, but the device consumes a large amount of electricity
Solution Approach 1:
By extracting only the essential electrical connection testing function from a multifunction device, the patent eliminates energy-consuming features and components that are not needed for this specific task. The simplified device architecture requires less power for operation, reducing overall energy consumption while maintaining effective testing capability.
3Adaptability or versatility
If a multifunction testing device is used to determine electrical connection status, then the testing function is provided, but the setup procedure becomes complicated and time-consuming
Solution Approach 1:
The patent extracts and isolates the electrical connection testing function into a dedicated device with a simplified interface and procedure. This eliminates the complexity of configuring and operating a multifunction device for a single task, making the setup process more straightforward and less time-consuming while maintaining accurate testing capability.
Solution Approach 2:
The probe card is pre-configured with specific electrical connection patterns and test circuits before use. This preliminary preparation eliminates the need for complex setup procedures during operation, as the card is already configured for specific testing scenarios, reducing both complexity and time requirements.
4Adaptability or versatility
If a multifunction testing device is used to determine electrical connection status, then the testing function is provided, but the device is not portable
Solution Approach 1:
By extracting only the essential electrical connection testing function from a multifunction device, the patent creates a lightweight, portable instrument. The removal of unnecessary components and systems reduces weight and size, enabling portability while maintaining the core testing capability needed for electrical connection determination.
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 device efficiently determines electrical connection status with reduced space and energy consumption, simplifying setup and operation, and allowing for individual testing of connectors and traces, while being more portable and user-friendly compared to conventional devices.
Implementation Method 1
supply a constant electric current via the testing board and the connecting interface to the DUT for a preset duration to result in a voltage, to measure the voltage, and to determine, based on a result of measurement of the voltage, the electrical connection status of the DUT
Data Source
AI summary
A testing device includes a measuring unit, a testing board supporting the measuring unit and connected to the measuring unit, and a connecting interface coupled to the testing board. The connecting interface includes connecting terminals protruding in a direction away from the testing board, and is connected to a device under test (DUT) via the connecting terminals. When the DUT is connected to the connecting interface, the measuring unit supplies a constant electric current via the testing board and the connecting interface to the DUT for a preset duration to result in a voltage, measures the voltage, and determines, based on a result of measurement of the voltage, an electrical connection status of the DUT.