Universal Reed Switch Structure for Omnidirectional Magnetic Closure
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Solution Overview
Problem
Conventional reed switches fail to close when a magnet approaches from the side, leading to malfunction and failure, as the magnetic field control is directional.
Innovation Solution
A universal touch control reed switch with a special universal touch structure, featuring an active contact and a ring contact arranged in a sealed housing, allowing the contacts to close when an external magnet approaches from any direction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If conventional reed switch contacts are arranged parallel in a glass tube, then the structure is simple and compact, but the contacts fail to close when a magnet approaches from the side, causing malfunction
Solution Approach 1:
The patent transforms the traditional linear parallel arrangement of contacts into a three-dimensional configuration where contacts are positioned at different spatial locations within the glass tube. The first and second contacts are arranged such that they can be actuated by magnetic fields from multiple directions (top, bottom, left, right), effectively adding dimensional diversity to the contact arrangement. This allows the reed switch to respond to magnets approaching from any direction while maintaining structural simplicity.
Solution Approach 2:
The patent creates a universal contact arrangement that can detect magnetic fields from all directions (360-degree coverage). The contacts are configured to work effectively regardless of the magnet's approach direction, making the reed switch universally responsive to magnetic actuation. This multi-directional capability ensures reliable operation in various installation orientations and usage scenarios.
2Adaptability or versatility
If the reed switch is installed in a product, then it is fixed in position, but the magnet may approach from any direction making conventional directional contacts unreliable
Solution Approach 1:
The patent employs a three-dimensional contact configuration where contacts are positioned to detect magnetic fields from multiple spatial directions. This dimensional arrangement ensures that regardless of how the reed switch is installed or which direction the magnet approaches from, at least one contact pair will be properly actuated, providing both installation flexibility and activation reliability.
Solution Approach 2:
The patent divides the contact system into multiple independent contact pairs (first contact and second contact) positioned at different orientations within the glass tube. Each contact pair is optimized to respond to magnets approaching from specific directions. By segmenting the detection capability across multiple contacts, the system ensures that one contact will reliably activate regardless of the magnet's approach direction or the device's installation orientation.
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 universal touch control structure ensures that the contacts close reliably from any direction, preventing failure and reducing the rate of malfunction.
Implementation Method 1
The reed switch is a switch controlled by a magnetic field signal
Implementation Method 2
when an external magnet approaches the two contacts from any direction, the two contacts close through the universal touch control structure
Data Source
AI summary
A universal touch control reed switch is provided, including a first lead (3), a second lead (2) and contacts respectively arranged on the first lead (3) and the second lead (2). The contacts are conducted in a touch control mode by using a universal touch control structure. When an external magnet approaches the two contacts in any direction, the two contacts are in contact with each other and closed in any direction through the universal touch control structure. The reed switch provided by the present disclosure uses the special universal touch control structure such that the external magnet, when moving close to the contacts, can close the two contacts regardless of the approaching direction, and a problem of contact failure in the prior art is effectively solved.