Electromagnetic Safe Deposit Lock with Vibration Sensing Mechanism
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Solution Overview
Problem
The existing electromagnetic opening devices for safe deposit boxes are prone to abnormal opening due to external forces like shaking or knocking, as the magnetic force of the electromagnet may not be sufficient to overcome the elastic force of the spring, compromising the stability and security of the safe deposit box.
Innovation Solution
An electromagnetic opening device with a vibration sensing mechanism, comprising a sensing block and a balance spring, is integrated to prevent abnormal unlocking by rotating counterclockwise and abutting against the shaft sleeve when external forces are applied, thereby maintaining the locking state.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the elastic force of the spring is increased to prevent abnormal opening under external force, then the stability and security are improved, but the magnetic force of the electromagnet must be even greater which increases device complexity and energy consumption
Solution Approach 1:
A vibration sensing mechanism is introduced as an intermediary component between the external force and the electromagnetic locking mechanism. This mechanism includes a sensing block that detects vibrations and a blocking component that prevents the movable iron core from compressing the spring under external force, thereby protecting the locking system without requiring increased magnetic force or spring elasticity.
2Reliability
If the elastic force of the spring is increased to prevent abnormal opening, then the security is improved, but the energy consumption of the electromagnet increases
Solution Approach 1:
The vibration sensing mechanism acts as a protective intermediary that prevents the movable iron core from compressing the spring under external force. By blocking this compression path, the system maintains security without requiring the electromagnet to consume additional energy to overcome increased spring elasticity.
3Reliability
If the magnetic force of the electromagnet is increased to overcome spring elastic force, then the locking reliability is improved, but the device complexity and potential for harmful factors increase
Solution Approach 1:
The vibration sensing mechanism serves as a protective intermediary that prevents external forces from compressing the spring and triggering abnormal unlocking. This mechanism includes a sensing block that detects vibrations and a blocking component that intercepts external forces before they can affect the electromagnetic locking mechanism, thereby maintaining locking reliability without increasing magnetic force or introducing harmful factors.
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 addition of the vibration sensing mechanism significantly enhances the stability and security of the safe deposit box by preventing unintended unlocking during events like shaking or knocking, ensuring reliable operation.
Implementation Method 1
an electromagnetic opening device, and a bolt assembly. The key reading device is typically a password or fingerprint reading device, the electromagnetic opening device is primarily an electromagnet driven by an electromagnetic coil
Implementation Method 2
a vibration sensing mechanism configured in the housing and comprising a sensing block having a stopping end and a balancing end located on two opposite sides of the movable iron core respectively, and a balance spring configured between a bottom of the balancing end and the housing
Implementation Method 3
a rebound spring structure is used to achieve locking and unlocking
Data Source
AI summary
An electromagnetic opening device comprises a housing, a fixed iron core, a movable iron core having a bottom end engaging with the fixed iron core, a shaft sleeve that sleeves a top end of the movable iron core and extends outside of the housing, and an electromagnetic coil, and a vibration sensing mechanism comprising a sensing block having a rotation shaft, a stopping end and a balancing end located on two sides of the movable iron core. A bottom of the stopping end is rotationally connected onto the housing through the rotation shaft. When the sensing block compresses a balance spring disposed between the balancing end and the housing through the rotation of the rotation shaft, the stopping end abuts against the shaft sleeve. The vibration sensing mechanism effectively prevents a mistaken shrinkage of the shaft sleeve of the movable iron core and abnormally opening of a safe deposit box.