Food Processor Base Venting With Integrated Baffle for Noise Reduction
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Solution Overview
Problem
Existing food processor bases fail to effectively reduce noise emitted by the motor and vibrations, as previous noise reduction methods, such as enclosures and baffles, are either ineffective or complex and difficult to manufacture.
Innovation Solution
A base design featuring a baffle projection integrated into the bottom surface with a support flange creating an internal cavity, and outlet ports and exhaust vents positioned on opposing sides of the baffle, which redirects airflow and noise, making it simpler to manufacture and more effective.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If an enclosure is provided around the container to contain noise, then noise from the container is reduced, but noise from the motor in the base is not addressed and the design becomes more complex
Solution Approach 1:
The noise reduction approach is segmented into two distinct parts: (1) an enclosure for the container to address container-related noise, and (2) a separate base design with integrated baffle and exhaust vent configuration to address motor-related noise. This segmentation allows each component to be optimized independently for its specific noise source.
Solution Approach 2:
A baffle structure is introduced as an intermediary element within the base, positioned between the motor and the exhaust vent. This baffle redirects the airflow path and prevents direct transmission of motor noise through the exhaust airflow to the exterior, effectively mediating the noise transmission path.
2Temperature
If cooling air is forced out through an air exhaust, then motor cooling is achieved, but noise carried by the airflow is amplified and emitted to the exterior
Solution Approach 1:
The baffle serves as an intermediary structure that intercepts and redirects the cooling airflow before it exits through the exhaust vent. By positioning the baffle between the motor area and the exhaust vent, the airflow path is modified to reduce the direct carry-over of motor noise to the exterior while maintaining the cooling function.
Solution Approach 2:
The exhaust vent is positioned at an angle or in a different spatial dimension relative to the motor and baffle configuration. This dimensional repositioning allows the exhaust to discharge cooling air effectively while the baffle blocks the direct line-of-sight path for noise transmission, separating the cooling function from the noise emission path.
3Object-generated harmful factors
If a baffle is provided within the base to suppress noise, then noise reduction is achieved, but the design becomes complex and difficult to manufacture
Solution Approach 1:
The baffle structure is merged with the base housing itself rather than being a separate, complex component. The baffle is formed as an integrated feature of the base, utilizing the existing base geometry and manufacturing processes, which simplifies production while maintaining effective noise suppression functionality.
Solution Approach 2:
The base structure serves multiple functions simultaneously: it houses the motor, provides structural support, and incorporates the noise-reducing baffle feature. This multi-functionality eliminates the need for separate noise control components, simplifying both design and manufacturing while achieving effective noise suppression.
4Ease of operation
If the base and its components are allowed to vibrate, then motor operation is straightforward, but additional noise is generated through vibration
Solution Approach 1:
The noise-generating vibration is extracted and isolated from the base structure through the baffle configuration. By redirecting airflow and creating acoustic barriers, the baffle prevents vibration-induced noise from being transmitted through the base to the exterior, allowing the motor to operate freely while minimizing noise transmission.
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 design significantly reduces noise transfer to the environment by redirecting airflow and noise within the base, ensuring efficient motor cooling while maintaining a cost-effective and straightforward manufacturing process.
Implementation Method 1
the baffle projection and outlet port and exhaust vent act to redirect airflow and noise within the base
Implementation Method 2
The vibrations created by the operating motor cause the base itself, and other components within the base, to vibrate, thereby generating additional noise
Implementation Method 3
The airflow exiting the base of the food processor carries the noise created therein during operation of the food processor to the exterior of the base
Data Source
Figure 1
Figure 2~3
AI summary
A base (10) for a food processor housing a motor and including controls (26) for operation of the food processor. The base (10) includes an air intake (28), an air exhaust (36), and a baffle (38), wherein the air exhaust (36) and baffle (38) are formed as a part of the bottom (20) of the food processor base (10) and act to reduce the sound emitted by the food processor. The bottom (20) of the food processor base includes an internal cavity (30) defined partially by a support flange (32) where heated air is exhausted. The air is then forced to change directions before exiting through exhaust ports (36).