EV Battery Connector Pin Dynamics for Stable Exchange
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Solution Overview
Problem
Electric vehicle batteries require long charging times, which hinders their widespread adoption, and existing battery exchange systems face challenges with vertical alignment and vibration-induced connector pin disconnection.
Innovation Solution
An electric vehicle battery attaching/detaching device with a battery mounting unit and a loader, featuring a connector pin module that ascends and descends to establish and maintain connections, and a movement device that allows for X-axis, Y-axis, and Z-axis movement to facilitate easy exchange of batteries, even when the mounting unit is not vertically aligned.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If batteries are charged for a long period of time, then the battery charge capacity is sufficient, but the time required for charging increases significantly
Solution Approach 1:
The patent extracts the charging process from the vehicle operation by providing external charging facilities at bus stops. Fully charged batteries are stored in battery stands, and the vehicle quickly exchanges batteries rather than charging while in use. This separates the charging function from the vehicle's operational time.
Solution Approach 2:
The patent introduces battery stands as intermediary storage facilities at bus stops. These stands hold fully charged batteries and enable quick exchange between vehicle batteries and stationary batteries, acting as a mediator that eliminates long charging waits.
2Manufacturing precision
If the battery mounting unit is positioned accurately on the vertical line with the battery attaching/detaching unit, then the connection is precise, but the system cannot accommodate positioning deviations
Solution Approach 1:
The connector pins are designed to move vertically (ascend and descend) rather than being fixed. This dynamic adjustment allows the pins to reach the correct connection position even when the battery mounting unit is slightly displaced from the ideal vertical alignment, accommodating real-world positioning variations.
3Reliability
If the connector pins are fixed in position, then the connection is stable, but the pins cannot accommodate vibrations during vehicle operation
Solution Approach 1:
The connector pins are designed to move vertically (ascend and descend) rather than being fixed. This dynamic adjustment allows the pins to reach the correct connection position even when the battery mounting unit is slightly displaced from the ideal vertical alignment, accommodating real-world positioning variations.
Solution Approach 2:
The system preemptively addresses vibration effects by designing connector pins that can adjust their position. The pins ascend to engage with the battery's connector holes, and their movable nature prevents vibration-induced disconnection by maintaining contact despite operational disturbances.
4Productivity
If a automated battery exchange system is implemented, then the battery exchange speed increases, but the system complexity increases
Solution Approach 1:
The system is divided into separate functional modules: battery stands for storage, mounting units for attachment, and detachable connector pins for connection. This segmentation allows each component to perform its specific function independently, simplifying the overall system while enabling automated quick exchange.
Data Source
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AI summary
Disclosed is an electric vehicle battery attaching /detaching device including a battery mounting unit formed on an electric vehicle to detachably mount a battery and provided with a connector pin module adapted to be lifted/lowered by a lifting/lowering means; a loader having a plurality of battery stands, each battery stand being adapted to detachably mount a fully-charged battery to be exchanged with the battery mounted on the battery mounting unit; and a battery attaching/detaching unit adapted to move along X-axis, Y-axis, and Z-axis between the battery mounting unit and the battery stand by means of a movement device, detach a battery mounted on the battery mounting unit or the battery stand, and exchange/mount the battery on the battery stand or the battery mounting unit. A connector pin, which is installed on the battery mounting unit and adapted to ascend/descend, is controlled to ascend, only if the battery is seated and set in the accurate position on the battery mounting unit, and inserted into the connector pin hole of the battery to establish stable electric connection between the battery and the battery mounting unit. Furthermore, the connector pin does not escape from the connector pin hole, even when vibration occurs during running of the electric vehicle, but maintains stable electric connection.