Air Circuit Breaker Spring Charging Notification Mechanism
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Solution Overview
Problem
Current air circuit breakers lack a means to notify operators of the completion of spring charging, leading to potential operational inefficiencies and increased complexity with additional circuit configurations.
Innovation Solution
A spring charging device equipped with micro switches and a switch lever that compresses the connection spring and notifies the operator of charging completion, enhancing operational efficiency by integrating these components with a driving motor, output gear, and decelerating gear assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If a separate distributing circuit is added to the motor-controlling micro switch to notify charging completion, then the notification function is improved, but the device complexity and risk of erroneous operation increase
Solution Approach 1:
The patent combines the notification function with the existing motor-controlling micro switch by using its output terminal to directly control a notification device (lamp or buzzer). This merging approach eliminates the need for a separate distributing circuit, thereby reducing device complexity while maintaining the charging completion notification function.
Solution Approach 2:
The micro switch's output terminal is made multi-functional by using it both for motor control and for triggering the notification device. This universal usage of the existing component allows the system to notify charging completion without adding dedicated notification circuitry, thus avoiding increased complexity.
2Ease of operation
If the switch compressor is positioned far from the gear contactor, then the ease of installation is improved, but the compressing pressure weakens and the switch compressor may bend
Solution Approach 1:
The patent applies local quality by varying the thickness of the switch compressor along its length. The portion near the gear contactor is made thicker to provide sufficient compressing pressure and prevent bending, while other portions can be thinner to facilitate installation and positioning. This localized variation in structural properties resolves the contradiction between installation ease and compressing pressure.
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 notifies operators of charging completion, preventing weakened compressing pressure and switch compressor bending, thereby improving the operational efficiency and reliability of air circuit breakers.
Implementation Method 1
at least one or more micro switches and a switch lever for turning on/off the micro switch capable of compressing a connection spring
Implementation Method 2
a driving motor; an output gear formed at an circumferential surface thereof with a predetermined groove
Implementation Method 3
a decelerating gear assembly connecting the driving motor to the output gear for transmitting a rotational force of the driving motor to the output gear
Implementation Method 4
capable of compressing a connection spring of an air circuit breaker
Data Source
Figure 1~2a
Figure 2b~2c
Figure 3
AI summary
Disclosed is a spring charging device (100) of air circuit breaker mounted with at least one or more micro switches and a switch lever (140) for turning on/off the micro switches capable of compressing the spring (11) and notifying completion of the compression of the spring when the charging is completed, thereby enhancing the efficiency in operation of the air circuit breaker by a user (an operator).