Magnetic Switch Mechanism for Stable Power-On Under External Interference
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Solution Overview
Problem
Conventional contact switches are prone to malfunctions due to external factors like vibration, weather exposure, and unintended magnetic field interactions, leading to unreliable power states.
Innovation Solution
A magnetic switch mechanism with internal contact members and a controller that operates via non-contact magnetic fields, using a logic circuit to manage power supply based on predefined signal codes, preventing malfunctions and ensuring reliable power delivery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If contact switches are used with exposed switching mechanisms, then the structure is simple and easy to manufacture, but the reliability deteriorates due to vibration, weather exposure, and unintended contact
Solution Approach 1:
The patent replaces the traditional mechanical contact switch with a magnetic field-based switching mechanism. The magnetic switch uses magnetic attraction and repulsion forces between magnets to open and close contacts, eliminating the need for manual mechanical operation. This substitution maintains manufacturing simplicity while significantly improving reliability by removing the exposed mechanical components that are susceptible to vibration, weather, and unintended contact.
Solution Approach 2:
The patent employs a protective casing or enclosure that houses the switching mechanism internally. This protective shell protects the contact members and magnetic components from external environmental factors such as moisture, dust, and physical damage, while allowing the magnetic field to penetrate through to actuate the switch. This approach maintains structural simplicity while enhancing reliability through environmental protection.
2Reliability
If reed switches are used for non-contact operation, then weather resistance is improved, but reliability deteriorates due to unintended operation from external magnetic fields
Solution Approach 1:
The patent introduces a magnetic shield or magnetic barrier as an intermediary element between the external environment and the reed switch contacts. This magnetic shield selectively blocks external magnetic fields that could cause unintended switching while allowing the controlled magnetic field from the actuator to reach the contacts. This resolves the contradiction by maintaining weather resistance while preventing magnetic field interference.
Solution Approach 2:
The patent applies magnetic shielding material specifically in strategic locations around the reed switch contacts, rather than enclosing the entire device. This localized application of magnetic shielding provides protection against external magnetic field interference while maintaining the weather-resistant sealed structure and allowing necessary magnetic field penetration for normal operation.
3Ease of operation
If the switching mechanism is exposed externally, then ease of operation is improved, but reliability deteriorates due to unintended contact and environmental damage
Solution Approach 1:
The patent replaces manual mechanical operation with automatic magnetic field actuation. The magnetic actuator can be operated remotely or automatically, eliminating the need for direct physical contact with the switching mechanism. This maintains ease of operation through remote control while improving reliability by protecting the internal contacts from environmental damage and unintended contact.
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 mechanism prevents malfunctions from external influences, enhances durability, and ensures stable power supply to connected devices by using internal components and signal-coded operations.
Implementation Method 1
a magnetic switch configured to accept a first operation and a second operation, the first operation enabling a first contact member and a second contact member to transition from a contact state to a non-contact state or from the non-contact state to the contact state by an external magnetic field
Data Source
AI summary
A switch mechanism includes: a magnetic switch that accepts a first operation and a second operation, the first operation enabling a first contact member and a second contact member to transition from a contact state to a non-contact state or from the non-contact state to the contact state by an external magnetic field, a second operation enabling the first contact member and the second contact member to transition from the contact state to the non-contact state or from the non-contact state to the contact state at least once or more by the external magnetic field; and a controller that operates in response to an operation on the magnetic switch. The controller drives a power receiving device when the second operation performed on the magnetic sensor is accepted.