Blender Control Button Nesting and PCB Support to Prevent Displacement
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Solution Overview
Problem
Existing blenders face issues with control buttons protruding from the front surface, which can be structurally damaged by strong forces and lead to displacement, and the combination of control buttons and display screens results in an unneat outer appearance.
Innovation Solution
A blender design featuring a supporter system within the inner case to securely mount the main PCB device, including upper and lower supporters, and a light guide mechanism using LEDs to visualize operation states without a separate display, maintaining the control button's position and enhancing the device's appearance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a control button protrudes from the front surface for operation input, then ease of operation is improved, but structural reliability deteriorates due to damage risk from strong forces
Solution Approach 1:
The control button is integrated into a recessed cavity in the front surface rather than protruding outward. The button is nested within the housing structure, allowing it to be pressed inward into the cavity without exposing it to external forces that could cause damage from the front surface.
Solution Approach 2:
A pressurizing member (spring) is introduced as an intermediary between the control button and the PCB. When the button is pressed, the spring absorbs the force and transmits it gradually to the PCB, preventing direct impact forces from damaging the button or internal structures.
2Ease of operation
If a control button protrudes from the front surface, then ease of operation is improved, but the control button may be displaced from its normal position due to rear pushing
Solution Approach 1:
The control button is nested within a recessed cavity that provides physical boundaries on all sides. This cavity structure prevents the button from being pushed backward or displaced from its intended position, as the housing walls constrain its movement in all directions.
Solution Approach 2:
The recessed cavity is pre-formed in the housing structure before the control button is installed. This preliminary structural preparation ensures that the button is guided into its correct position and maintained there, preventing displacement during operation.
3Loss of information
If both control button and display screen are provided on the base part, then information transmission is improved, but outer appearance neatness deteriorates
Solution Approach 1:
The control button and display screen are merged into a single integrated unit. The display screen is positioned within the same recessed cavity as the control button, creating a unified control panel that maintains a neat, streamlined appearance while providing both input and visual feedback functions.
Solution Approach 2:
The display screen utilizes the vertical depth of the recessed cavity rather than extending the front surface horizontally. By placing the screen within the cavity depth, the design maintains a compact, neat front surface profile while still accommodating both the button and display components.
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 supporter system prevents the main PCB device from being pushed backward, ensuring secure operation and maintaining the blender's compact appearance, while the LED light guide enhances user interaction and visual feedback without additional display components.
Implementation Method 1
a light guide configured to guide light from the LED toward the front surface of the main body
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.