Encoder-Controlled Barrel Cover for Stable Bin Lid Motion
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Solution Overview
Problem
Existing garbage bins with manual, pedal, or induction-type barrel covers face issues such as unstable opening and closing speeds, leading to shaking of the bin, potential pollution, and health hazards due to gas diffusion, especially when placed inclined.
Innovation Solution
A barrel cover with an encoder, motor, buffer, driving shaft, and drive circuit that stabilizes the cover plate movement, preventing severe shaking and gas leakage by controlling the rotation speed and angle, ensuring a tight fit even when the bin is inclined.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a simple mechanical structure is used to connect the barrel cover to the barrel body, then the device complexity is reduced, but the opening and closing speed becomes unstable
Solution Approach 1:
The patent replaces the simple mechanical connection structure with an electric motor-driven system. The motor controls the cover plate's opening and closing through electromagnetic force, eliminating the unreliability of pure mechanical linkages while maintaining reasonable device complexity through integrated motor-controller-encoder architecture.
Solution Approach 2:
The patent implements a feedback control system using an encoder to detect the cover plate's position and speed. The controller receives encoder signals and adjusts motor output in real-time to maintain stable opening and closing speeds, creating a closed-loop control system that ensures reliability.
2Speed
If the barrel cover opens too quickly, then the opening speed is improved, but the barrel body shakes and garbage is spilled
Solution Approach 1:
The patent employs dynamic speed control where the motor adjusts its rotation speed during the cover opening process. The system can accelerate rapidly initially then decelerate near the end position, or maintain a controlled maximum speed throughout, preventing excessive shaking while achieving fast opening. The encoder provides real-time position feedback enabling this dynamic adjustment.
Solution Approach 2:
The patent uses periodic or phased action by dividing the cover opening process into multiple stages with different speed profiles. The motor may operate at high speed for the majority of the opening stroke then transition to a deceleration phase near the endpoint, achieving both speed and stability through time-phased control.
3Speed
If the barrel cover closes too quickly, then the closing speed is improved, but gas diffuses faster to the surrounding environment
Solution Approach 1:
The patent applies dynamic speed control during cover closing, where the motor adjusts rotation speed based on real-time position feedback from the encoder. The system can maintain controlled speeds that balance quick closing with minimized gas turbulence, preventing excessive gas diffusion while achieving efficient closure.
Solution Approach 2:
The encoder provides continuous position feedback during the closing process, allowing the controller to adjust motor speed to prevent turbulent flow that would cause gas diffusion. The feedback loop ensures the cover closes at an optimized speed profile that minimizes harmful gas release.
4Adaptability or versatility
If the garbage bin is placed in an inclined manner, then the adaptability is improved, but the barrel cover separates from the barrel body due to gravity
Solution Approach 1:
The patent replaces gravity-dependent mechanical connections with an electric motor-driven system that can actively counteract gravitational forces. The motor maintains the cover plate's position and connection stability through controlled electromagnetic force, enabling the bin to be placed at various inclinations without separation.
Solution Approach 2:
The encoder detects the cover plate's position and any movement caused by gravity on inclined surfaces. The controller compensates for gravitational effects by adjusting motor output in real-time, maintaining stable connection between cover and body regardless of bin orientation, thus enabling adaptability to various placements.
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 garbage from being spilled or gas from escaping, enhancing user experience and health safety by stabilizing the cover plate movement and maintaining a secure fit, regardless of the bin's orientation.
Implementation Method 1
a motor provided with an encoder and connected to the housing
Implementation Method 2
a rotary shaft of the motor is connected to the first end of the buffer, and the buffer rotates under the drive of the motor
Implementation Method 3
the other end of the driving shaft is connected to a second end of the buffer, the second connecting base and the buffer enable to the driving shaft to be fixed on the housing, and the driving shaft rotates around its own axial direction under the function of the buffer
Implementation Method 4
the cover plate is connected to the driving shaft, the cover plate rotates with the rotation of the driving shaft
Data Source
AI summary
Disclosed are a barrel cover with an encoder, a garbage bin, a barrel cover control method, a motor driver, and a non-transitory computer-readable storage medium. The barrel cover with the encoder includes a housing, a motor, a buffer, a driving shaft, a cover plate, and a drive circuit; the housing is provided with a cover opening, a first connecting base, and a second connecting base; the motor is connected to the housing and provided with an encoder; a first end of the buffer is rotatably connected to the first connecting base, and a rotary shaft of the motor is connected to the first end of the buffer; an end of the driving shaft is rotatably connected to the second connecting base, and the other end of the driving shaft is connected to a second end of the buffer.