Wireless Earphone Case With Magnetic Auto-Open and Drop Locking
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Solution Overview
Problem
Current wireless earphone cases are inconvenient to open with two hands, prone to accidental opening when dropped, and fail to securely attach to wireless charging stations, leading to potential damage and inefficient charging.
Innovation Solution
The case features a switch lock catch and repelling magnets that allow automatic one-handed opening, secure magnetic attachment to wireless charging stations, and a design using TPU and PC materials for enhanced durability and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the case cover and charging case body are magnetically attracted and fixed through magnets, then the case cover can be securely closed, but the case cover cannot automatically open and requires two hands to open
Solution Approach 1:
The patent applies the inversion principle by using repelling magnets instead of attracting magnets for the opening mechanism. The second magnet on the charging case body and third magnet on the case cover are configured to repel each other, creating an automatic opening force that overcomes the magnetic attraction holding the case closed. This inverts the conventional magnetic attraction approach to achieve automatic opening while maintaining secure closure.
Solution Approach 2:
The patent employs parameter changes by adjusting the magnetic field strength and direction at different locations. The first magnets provide strong attraction for secure closure, while the second and third magnets provide repulsion for automatic opening. By changing the magnetic parameters (attraction vs. repulsion) at different positions, the system achieves both secure closure and easy opening without increasing overall structural complexity.
2Reliability
If the case cover is securely magnetically fixed to the charging case body, then the case remains closed during normal use, but the case cover is easy to open when the case falls on the ground
Solution Approach 1:
The patent applies local quality by differentiating the magnetic function at different locations. The first magnets on the back surfaces provide strong attraction for secure closure during normal use. The second and third magnets positioned at the front create a localized repelling force that activates only under specific conditions (impact or manual pressing), preventing accidental opening during drops while maintaining reliability during normal handling.
Solution Approach 2:
The patent implements preliminary anti-action by pre-positioning the repelling magnets to counteract the magnetic attraction force before impact occurs. When the case experiences a drop or pressing action, the repelling force between the second and third magnets activates in advance to prevent the case cover from opening, thereby protecting the earphones from falling out or damage.
3Reliability
If the case does not have magnetic attachment capability, then the structure remains simple, but the case easily slides off from the wireless charging station
Solution Approach 1:
The patent applies universality by making the magnets serve multiple functions. The first magnets on the back surfaces of both the charging case body and case cover provide dual functionality: they maintain secure closure of the case and simultaneously enable magnetic attachment to the wireless charging station. This multi-functionality achieves reliable attachment without adding separate magnetic components, thereby avoiding increased device complexity.
4Productivity
If the case cannot be rapidly charged in place, then the charging mechanism remains simple, but the charging efficiency is low
Solution Approach 1:
The patent implements self-service through the magnetic positioning system that automatically aligns the case with the wireless charging station upon contact. The first magnets create a self-correcting magnetic field that guides the case into the correct position without user intervention, enabling rapid charging in place. This automatic positioning achieves high charging efficiency while keeping the system simple, as the magnets themselves perform the alignment function without requiring additional actuators or sensors.
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
Enables convenient one-handed operation, prevents accidental opening and earphone damage, and ensures secure, rapid wireless charging by magnetically fixing the case to charging stations.
Implementation Method 1
A plurality of first magnets are respectively disposed on both a back surface of the charging case body and a back surface of the case cover, the plurality of the first magnets are magnetically attracted and fixed to a wireless charging station for wireless charging
Implementation Method 2
A second magnet is fixed to a top portion of a front side of the charging case body, a third magnet is disposed at a bottom portion of a front side of the case cover, the second magnet and the third magnet are repelled to drive the case cover to bounce upwards with respect to the charging case body
Data Source
AI summary
A case for wireless earphones includes a charging case body and a case cover. The charging case body includes an accommodating cavity for accommodating wireless earphones, and an opening of the accommodating cavity faces upwards. The case for the wireless earphones further includes a switch lock catch, a second magnet, and a third magnet, the case cover is locked through the switch lock catch, and the second magnet and the third magnet are repelled, after pressing the switch lock catch, the cover case may automatically open, so that users may operate through only one hand, which is very convenient. At the same time, when the case for the wireless earphones falls on the ground, the case cover is not easily opened, which prevent the wireless earphones from falling out and being damaged, so that the wireless earphones are well protected.