Blender Control Button Assembly with Supporter-Protected PCB Mounting
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Solution Overview
Problem
Existing blenders face issues with the structural integrity of control buttons, which can be damaged by strong forces and lead to displacement, and the appearance is not neat due to the placement of control buttons and display screens on the front surface.
Innovation Solution
A blender design that includes a supporter system within the inner case to securely mount the main PCB device, preventing it from being pushed backward and maintaining the control button's position, along with a light guide system to visualize operation states without a separate display, enhancing user convenience and appearance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a control button protrudes from the front surface for operation manipulation, then ease of operation is improved, but structural reliability deteriorates as the button can be damaged by strong forces and may be pushed to the rear
Solution Approach 1:
The control button assembly is separated into distinct functional components: the protruding control button for user interaction, the rotation shaft for signal transmission, and the PCB mounting area for electronic control. This segmentation allows the button to protrude for ease of operation while the internal components are securely mounted to prevent damage from strong forces.
Solution Approach 2:
The control button is pre-mounted on the rotation shaft which is already secured to the PCB before final assembly. This preliminary mounting ensures that when the button is pushed during operation, the force is transmitted through the pre-positioned shaft to the PCB without causing displacement or damage to internal components.
2Loss of information
If both control button and display screen are provided on the front surface, then information transmission is improved, but appearance neatness deteriorates
Solution Approach 1:
The display screen and control button are merged into a single integrated front panel assembly. This combination allows both information display and operation manipulation to occur on the same surface without requiring separate protruding components, thereby maintaining a neat and compact appearance while providing complete operational feedback.
3Device complexity
If the control button is supported directly by the PCB, then device complexity is reduced, but reliability deteriorates as strong forces can damage the PCB
Solution Approach 1:
The rotation shaft serves as an intermediary component between the control button and the PCB. It transmits the rotational motion and operational signals from the button to the PCB without requiring the button to be directly mounted on the fragile PCB surface, thereby protecting the PCB from damage while maintaining a simple overall structure.
Data Source
AI summary
The present disclosure relates to a blender including a main body including an outer case forming an outer appearance and an inner case configured to be received inside the outer case, a jar configured to be seated on the main body and provided with a blade device for crushing food, a motor assembly provided inside the inner case and configured to generate rotation power of the blade device, a main PCB device which is provided inside the inner case and on which a knob rotation shaft is mounted to input rotation of the knob rotation shaft, a knob assembly mounted on the knob rotation shaft and protruding outwardly through the outer case so that the operation of the knob assembly is manipulated by a user for operation manipulation of the motor assembly, and a supporter provided inside the inner case and supporting the main PCB device.