Blender Base Motor Isolation for Noise and Vibration Reduction
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Solution Overview
Problem
Loud noise and vibration from blender bases, particularly in commercial settings, are not effectively addressed by existing noise reduction methods, as they fail to isolate the motor noise and vibration within the base itself.
Innovation Solution
The blender base design includes a motor housing isolated from the outer shell and base frame, with features like air passages, diffusers, and gaskets to reduce noise and vibration transfer, and a fan chamber to manage airflow and noise amplification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the motor housing is directly connected to the outer shell for structural simplicity, then the device complexity is reduced, but noise and vibration are amplified and transmitted to the exterior
Solution Approach 1:
The patent introduces an intermediate isolation structure between the motor housing and outer shell. This intermediary component decouples the direct connection, allowing the motor housing to be mounted on isolated supports or dampers that prevent vibration and noise transmission to the outer shell, thus resolving the contradiction between structural simplicity and noise control
Solution Approach 2:
The patent segments the base structure into distinct isolated components: the outer shell, the base frame, and the motor housing mounted on isolation elements. This segmentation allows each component to be optimized independently, with the motor housing separated from the noise-sensitive outer shell by vibration isolation mechanisms
2Temperature
If cooling air is forced through the base to cool the motor, then the motor temperature is controlled, but the airflow amplifies and carries noise to the exterior
Solution Approach 1:
The patent introduces acoustic treatment materials as intermediary elements within the air passages. These materials line the cooling airflow paths to absorb noise while allowing thermal exchange, thus mediating between the need for effective cooling and the need to prevent noise amplification by the airflow
Solution Approach 2:
The patent converts the harmful effect of noise-carrying airflow into a beneficial dual-function system where the same airflow path serves both cooling and acoustic absorption purposes. The air passages are designed to utilize the airflow itself to activate acoustic treatment materials, transforming the noise-amplifying airflow into a noise-absorbing cooling stream
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
This design significantly reduces the overall noise output of the blender by isolating motor noise and vibration, minimizing their transfer to the outer shell and base frame, thereby enhancing operational quietness.
Implementation Method 1
The motor housing is isolated from any direct connection with the outer shell to reduce or even eliminate the transfer of noise and vibration from the motor to the shell
Data Source
AI summary
A blender base is generally described. The blender base includes a base frame. An outer shell may be connected to the base frame. A motor housing is supported by the base frame and positioned inside the outer shell. The motor housing is isolated from direct connection with the outer shell to reduce the transfer of noise and vibration from the motor to the outer shell.