Electronic Padlock Blocking Mechanism Prevents Erroneous Opening
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing electronic padlocks are prone to erroneous opening due to internal friction or external influences like knocking, which can cause the cam piece to turn incorrectly, leading to unintended unlocking.
Innovation Solution
A blocking mechanism comprising a locking plate, latch piece, driver, and torsion projection, connected to the electronic actuator's pivot shaft, which prevents unauthorized turning of the cam piece by using a spring to maintain the locking plate in position and only allowing turning when the correct code is entered, ensuring secure locking and unlocking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the cam piece is held in position only by internal friction in the electronic actuator or its gearing, then the device complexity is reduced, but the reliability deteriorates as the cam piece can erroneously turn due to knocking or vibrations
Solution Approach 1:
The blocking mechanism is activated in advance by the electronic actuator before any external force can cause erroneous turning. When the correct code is entered, the electronic actuator proactively moves the blocking mechanism to the releasing position, preemptively preventing any potential erroneous opening that might occur from subsequent knocking or vibrations.
Solution Approach 2:
The blocking mechanism serves as an intermediary component between the electronic actuator and the cam piece. It transmits and controls the turning motion, allowing the electronic actuator to precisely control cam piece movement while blocking any unintended turning caused by external forces like knocking or vibrations.
2Reliability
If a blocking mechanism is introduced to prevent erroneous turning of the cam piece, then the reliability is improved, but the device complexity increases due to additional components
Solution Approach 1:
The blocking mechanism is merged with the existing electronic actuator structure. The blocking mechanism shares the pivot shaft with the electronic actuator and is integrated into the same housing, combining multiple functions into a unified structure that reduces overall device complexity despite adding functional capabilities.
Solution Approach 2:
The electronic actuator serves multiple functions: it not only drives the cam piece for locking/unlocking but also activates the blocking mechanism to prevent erroneous turning. This multi-functionality reduces the need for separate dedicated components, thereby limiting the increase in device complexity while maintaining improved reliability.
3Reliability
If the blocking mechanism uses a spring to maintain the locking plate in position, then the reliability is improved by preventing erroneous opening, but the use of energy increases due to the spring mechanism
Solution Approach 1:
The spring in the blocking mechanism is a self-service component that automatically maintains the locking plate in the blocking position without requiring external energy input. The spring constantly exerts force to keep the blocking mechanism engaged, and this elastic energy is passively stored and released as needed, eliminating the need for continuous power consumption while maintaining reliable prevention of erroneous opening.
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 solution effectively prevents erroneous opening by securely locking the cam piece in place, even under external vibrations or damage to the electronic actuator, ensuring the padlock remains locked unless the correct code is entered, thus enhancing security and reliability.
Implementation Method 1
there is a blocking mechanism in the direction of the pivot shaft of the electronic actuator... The blocking mechanism connects the pivot shaft of the electronic actuator functionally to the cam piece
Data Source
AI summary
The object of the invention is to provide an electronic padlock (1), by means of which the chance of erroneous opening of the electronic padlock is reduced. The electronic padlock according to the invention comprises a body (2) and a shackle (3). The body has latch parts (4), a cam piece (5) and an electronic actuator (6). The electronic actuator (6) comprises a pivot shaft (7), which is arranged to turn the cam piece (5) to release the latch parts (4) from a locking state, and also to turn the cam piece (5) to hold the latch parts in the locking state. In the locking state, the latch parts (4) prevent the shackle (2) from being moved to open the electronic padlock (1). Between the electronic actuator (6) and cam piece (5) there is a blocking mechanism (8). The blocking mechanism connects the pivot shaft (7) of the electronic actuator (6) functionally to the cam piece (5) to turn it with the electronic actuator (6) and prevent any other turning of the cam piece (5) in relation to the body (2).