Connector Surge Prevention via Elastic Ground Pin Sequencing
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Solution Overview
Problem
Conventional connectors often cause a surge phenomenon when connecting pins with different voltages to a circuit board, leading to potential damage of the BMS chip and safety issues due to unpredictable connection order.
Innovation Solution
A male connector design featuring ground connection members made of elastic material, which are detachably connected to the male connector pins and spaced from their front ends, ensuring that pins with lower voltages are connected first to prevent surges by sequencing the connection based on voltage levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If all connector pins are connected to the circuit board at the same time, then the connection process is simple and fast, but a surge occurs when a high voltage pin is unexpectedly connected first, potentially damaging the BMS chip
Solution Approach 1:
The connector pins are divided into multiple groups based on voltage levels, with each group having its own independent connection path to the circuit board. This segmentation allows pins to be connected in a controlled sequence rather than all at once, preventing surge while maintaining connection efficiency
Solution Approach 2:
Ground pins and low voltage pins are configured to be connected to the circuit board before high voltage pins through the segmented connection paths. This preliminary action ensures that the circuit board is properly grounded and ready to receive higher voltage signals, preventing surge phenomena
2Reliability
If connector pins are connected in sequence from ground to higher voltages, then surge is prevented, but the connection structure becomes more complex
Solution Approach 1:
Multiple connector pins sharing the same voltage level are grouped together and connected to the circuit board through a common connection path. This merging reduces the overall number of separate connection paths needed while still maintaining the sequential connection advantage for different voltage levels
Solution Approach 2:
Different connection paths are designed with different electrical characteristics suitable for their specific voltage levels. Ground and low voltage paths are established first with appropriate grounding characteristics, while high voltage paths are configured separately, allowing each path to have optimized local properties for its function
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 surge phenomena by ensuring that connector pins with lower voltages are connected to the circuit board first, thereby protecting the BMS chip and ensuring proper device function.
Implementation Method 1
ground connection members made of elastic material, which are detachably connected to the male connector pins
Data Source
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AI summary
Disclosed is a male connector, which is connected to or disconnected from a female connector, and includes a male connector housing; male connector pins disposed in an inner space of the male connector housing; and a ground connection member having one side connected to the male connector pins and the other side connected to an inner wall of the male connector housing, wherein the ground connection member is provided in plural, and wherein the plurality of ground connection members are respectively connected to the male connector pins in one-to-one relationship and are detachably connected to the male connector pins, respectively, at positions spaced from front ends of the male connector pins by predetermined distances such that the plurality of ground connection members are separated in sequence from the male connector pin by the female connector according to a depth by which the female connector is inserted into the male connector housing.