Mixer Tool Detection and Bowl Design for Small-Volume Mixing
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Solution Overview
Problem
Conventional food mixers often require users to learn through trial and error, struggle with mixing small volumes, and have issues with ingredient splashing and visibility due to design limitations, leading to inefficient and wasteful mixing processes.
Innovation Solution
A food mixing machine with a tilted bowl and advanced attachment detection system, featuring a motor-driven mixing tool that can adjust speed and power based on the attached tool, along with a lid design that prevents ingredient ejection and enhances visibility, allowing for efficient mixing of small volumes and improved user interaction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a mixer tool is configured to fit tightly against the bottom surface of the bowl, then mixing effectiveness is improved, but the tool may be damaged if the bowl is not correctly positioned or if heavy ingredients resist the precisely configured movement
Solution Approach 1:
The mixing tool incorporates a spring mechanism that allows dynamic adjustment of the tool's position relative to the bowl bottom. The spring enables the tool to maintain contact with the bowl bottom for effective mixing while accommodating variations in bowl positioning and ingredient resistance, preventing tool damage through elastic deformation rather than rigid constraint
Solution Approach 2:
The spring constant and pre-compression force of the spring mechanism can be designed to optimize the contact force between the mixing tool and bowl bottom. By carefully selecting these parameters, the system achieves sufficient contact pressure for effective mixing while limiting maximum force to prevent tool damage under adverse conditions
2Object-generated harmful factors
If a lid is added to prevent ingredient splashing, then ingredient containment is improved, but access and vision of the bowl interior is reduced
Solution Approach 1:
The lid is designed with a transparent window or opening in specific locations to provide localized visibility and access. This allows the lid to maintain its protective function against splashing while creating targeted openings that enable users to observe and access the bowl interior without compromising overall containment
Solution Approach 2:
A removable insert or divider may be placed inside the lid that can be adjusted or removed to facilitate access to specific areas of the bowl. This intermediary element allows selective access while maintaining the lid's protective function for the remaining portions
3Ease of operation
If the lid has a central opening directly above the mixer tool for ingredient addition, then ingredient addition is simplified, but ingredients are placed on top of the tool attachment which slows mixing and wastes ingredients
Solution Approach 1:
The lid opening is positioned asymmetrically offset from the central axis of the bowl, specifically located away from the path of the rotating mixing tool. This asymmetric positioning allows ingredients to be added through the opening and fall directly into the mixing zone without contacting the tool attachment, maintaining mixing efficiency while enabling easy ingredient addition
Solution Approach 2:
The opening is positioned in the lateral dimension rather than directly above the tool in the vertical dimension. By moving the opening to the side of the bowl, ingredients can be added horizontally and fall vertically into the mixing zone, avoiding interference with the rotating tool while maintaining access simplicity
4Object-generated harmful factors
If the lid is made difficult to attach to ensure it stays on during mixing, then ingredient containment is improved, but the lid may come off during operation and user time is increased
Solution Approach 1:
The lid attachment mechanism uses a snap-fit or friction-based connection that creates a self-locking condition when properly installed. The design ensures that once attached, the lid remains securely in place during mixing operations without requiring additional fastening steps, balancing ease of attachment with secure containment
Solution Approach 2:
The lid incorporates automatic engagement features such as spring-loaded clips or friction ridges that self-adjust to secure the lid to the bowl. Once the lid is placed on the bowl, these mechanisms automatically engage to maintain containment, eliminating the need for complex manual fastening while ensuring reliable attachment during operation
Data Source
AI summary
A food mixer is presented having mixing tool detection capability. The food mixer has a base unit with a tool attachment portion, a mixing bowl attached to the base unit, and a motor attached to the base unit. The motor has operational settings and is configured to apply a torque to the tool attachment portion. A mixing tool is removably attached to the tool attachment portion, and a controller unit of the mixer is configured to detect the mixing tool attached to the tool attachment portion and to automatically control the operational settings of the drive motor based on the mixing tool detected. A magnet carrier may be used to detect a magnetic portion of the mixing tool as it moves with respect to a magnetically-sensitive sensor in the base unit.