Juicer Motor-Driven Attachment Control to Reduce Safety Accidents
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Solution Overview
Problem
Conventional juicers using the pair gear method face safety risks due to the coupling of the grinding part and drive part, which can lead to unexpected operations and accidents.
Innovation Solution
A juicer design that allows the drive part and roller part to be automatically attached and detached via normal and reverse rotation of the motor, incorporating a sensor system to control the motor's operation and ensure safe coupling and decoupling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the grinding part and drive part are coupled to drive the juicer uniformly, then the juicer operates smoothly and efficiently, but safety risks increase due to unexpected operations of the grinding part and drive part
Solution Approach 1:
The juicer is divided into separable components: the drive part (motor housing) and the roller part (grinding assembly). The roller part can be detached from the drive part, allowing the grinding mechanism to be separated from the power source when not in use, thereby eliminating safety risks while maintaining operational smoothness during juicing.
Solution Approach 2:
The coupling between the drive part and roller part is made dynamic rather than fixed. The roller part can be attached to or detached from the drive part based on operational needs. This dynamic configuration allows the system to switch between a coupled state (for smooth operation) and an uncoupled state (for safety), resolving the contradiction between reliability and safety.
2Object-affected harmful factors
If the roller part is detachably coupled to extend forward from the motor housing, then safety is improved through automatic attachment and detachment, but device complexity increases due to the need for sensor systems and control mechanisms
Solution Approach 1:
The sensor system automatically detects the attachment state of the roller part and controls the motor accordingly without requiring manual intervention. When the roller part is attached, the sensor signals the controller to enable motor operation; when detached, the motor is automatically disabled. This self-service mechanism manages the increased device complexity through automation, maintaining safety while minimizing user burden.
Solution Approach 2:
A sensor system provides feedback about the attachment state of the roller part to the control mechanism. The sensor detects whether the roller part is properly coupled to the drive part and sends this information to the controller, which then adjusts motor operation accordingly. This feedback loop ensures safety by preventing motor operation when the roller part is missing or improperly attached, justifying the added complexity through enhanced safety control.
3Reliability
If sensors are added to detect the attachment state of the roller part, then operational safety is enhanced, but manufacturing cost increases
Solution Approach 1:
The patent replaces complex mechanical interlocking mechanisms with a simpler sensor-based detection system. Instead of using elaborate mechanical switches or interlocks to ensure safe operation, the invention uses electronic sensors to detect the attachment state and control motor operation. This substitution reduces manufacturing complexity and cost while maintaining or improving safety, as electronic sensors are generally easier and cheaper to manufacture than precision mechanical safety mechanisms.
Data Source
AI summary
The present disclosure relates to a juicer with improved safety, and particularly, includes a motor housing, a drive part including a motor which is provided inside the motor housing, and a roller part which is detachably coupled to extend forward from the motor housing, and is provided therein to be rotatably driven by the drive force transferred from the drive part, in which the drive part and the roller part are attached and detached by the normal and reverse rotation of the motor, thereby greatly improving safety of the juicer.