Magnetic Mechanical Connector With Auto Locking and Low Leakage
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Solution Overview
Problem
Existing coupling devices for baby strollers and similar applications face issues with magnetic leakage, security risks, and instability under external forces, requiring cumbersome multi-step operations and lacking automatic locking mechanisms.
Innovation Solution
A magnetic and mechanical connection device with a telescopic structure that combines magnetic attraction with an automatic mechanical locking system, featuring a male and female part with spring-biased locking pins and a release mechanism to ensure secure attachment and easy disengagement, reducing magnetic leakage and enhancing safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a simple magnetic connection is used, then ease of operation is improved, but magnetic leakage increases causing security risks
Solution Approach 1:
A mechanical locking mechanism is introduced as an intermediary between the magnetic connection and the external environment. The locking pin and groove system mediates the connection strength, providing secure attachment without requiring increased magnetic force, thereby preventing magnetic leakage while maintaining ease of operation.
Solution Approach 2:
The connection parameters are changed from purely magnetic to a hybrid magnetic-mechanical system. By adjusting the connection mechanism from simple magnetic attraction to magnetic force combined with mechanical interlocking, the system achieves both ease of use and reduced magnetic leakage through optimized parameter configuration.
2Ease of operation
If a simple magnetic connection is used, then ease of operation is improved, but reliability deteriorates under large external forces
Solution Approach 1:
The patent merges magnetic connection and mechanical locking into a unified hybrid system. The magnetic force provides initial attraction and ease of operation, while the mechanical locking pin and groove structure provides reliability under external forces. This combination resolves the contradiction between ease of operation and connection stability.
3Reliability
If a mechanical locking mechanism is added to magnetic connection, then reliability is improved, but device complexity increases
Solution Approach 1:
The locking mechanism is designed to be self-activating through spring-loaded pins that automatically engage with grooves when the connection is formed. This self-service feature eliminates the need for additional actuators or complex control systems, maintaining simplicity while improving reliability through automatic mechanical interlocking.
4Reliability
If magnetic force is increased to prevent separation, then reliability is improved, but magnetic leakage worsens
Solution Approach 1:
The mechanical locking pin acts as an intermediary that bears the load of connection strength, allowing the magnetic force to be reduced to safe levels. The pin transfers the stress of preventing separation from the magnetic field to the mechanical structure, thereby maintaining reliability while eliminating excessive magnetic leakage.
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 provides a secure, easy-to-use connection that can withstand significant tensile strength, minimizes magnetic leakage, and allows safe transportation on airplanes, while enabling quick release and retraction, suitable for various applications beyond baby strollers.
Implementation Method 1
The female part is provided with a first connection surface provided on a female housing having a bottom and a top and to which bottom on the inside a permanent magnet is attached... The male part is provided with a second connection surface provided on a male part housing with a connection member having at least a magnetic surface... to connect magnetically with the permanent magnet
Data Source
Figure 1~3
Figure 4~7
Figure 8~11
AI summary
Magnetic and mechanical connection device (10) provided with, a connection surface (61) provided female part (11) with a female housing (71) having a bottom (72) and a top (73) to which bottom (72) on the inside a first permanent magnet (M1) is attached and which top (73) is provided with a female opening (74); a connection surface (41) provided male part (12) with a male housing (51) provided with a connection member (52) having at least a magnetic surface (53) and being slightly smaller than the female opening (74) in the female part (11) in order for the male part (12) to be able to enter the female opening (74) in an insertion direction and to connect magnetically with the permanent magnet (M); a spring biased locking pin (75) attached to either the connection member (52) of the male part (12) or the female opening (74) of the female part (11) which locking pin (75) is directed in a perpendicular direction from the insertion direction and which locking pin (75) is interacting in a locking engagement with an opposite locking groove 1 (54) in the opposite part which locking groove (54) is directed essentially perpendicular to the insertion direction and being wide enough to receive the spring biased locking pin (75); a release member (55) operable to press the locking pin (75) out from the locking groove (54) in order to make it possible to separate said connection surfaces (41, 61) from each other.