Immersion blender
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Solution Overview
Problem
Current hand blenders are difficult to control, leading to fatigue and performance issues, and pose safety and sanitary concerns due to the need to grasp the blending arm. Additionally, existing systems with permanently mounted handles or stand-alone mixing pot solutions are cumbersome and expensive.
Innovation Solution
A mixing appliance assembly with a housing, motor, and shaft that includes a top handle with a pulse button and continuous run switch, a side port for interchangeable features like a bowl clamp or secondary handle, and an interlocking switch that allows continuous operation without resetting the on/off switch when secured to a bowl.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a user grabs the blending arm for control, then the blender is easier to handle, but safety and sanitary concerns arise with the food being prepared
Solution Approach 1:
A magnetic coupling system acts as an intermediary between the motor housing and the blending arm. The magnetic field transmits rotational force without direct mechanical contact, allowing the user to hold the non-contacting housing while the blade rotates inside the food container. This eliminates the need to grasp the blending arm directly, resolving the safety and sanitation issues while maintaining ease of control.
2Stability of the object's composition
If permanently mounted handles or stand-alone mixing pot mounting solutions are used, then the blender is more stable, but the system becomes cumbersome and expensive
Solution Approach 1:
The magnetic coupling system provides dynamic stability rather than fixed mechanical mounting. The magnetic field continuously adapts to maintain coupling between the motor housing and blending arm during operation, providing stable force transmission without rigid mechanical connections. This eliminates cumbersome mounting structures and reduces system complexity and cost.
3Device complexity
If a user must reset an on/off switch after releasing a pulse button, then the switch control is simple, but continuous operation requires repeated manual intervention
Solution Approach 1:
The magnetic coupling system maintains continuous engagement between the motor housing and blending arm throughout operation. Once activated, the magnetic field automatically sustains the coupling without requiring manual reset or intervention, allowing continuous operation while keeping the control system simple. The system serves itself by maintaining the magnetic connection without user action.
Data Source
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AI summary
A mixing appliance assembly (10, 100, 200) includes a housing (12, 212), which includes a motor (17, 217) and shaft (18, 218) operably coupled with the motor (17, 217) and extending outwardly from the housing (12, 212). A top handle (24, 102, 224) is operably coupled with the housing (17, 217) and includes a pulse button (35, 106, 201). A continuous run switch (107, 268) is disposed on one of the housing (12, 212) and the top handle (24, 102, 224). A receiving port (263) is disposed in the housing (12, 212) and configured to receive a port connecting member (330) and includes an interlocking feature. An interlock switch (253) is disposed inside the receiving port (263). A switch engagement member (332) is configured to engage the interlock switch (253) such that the continuous run switch (107, 268) can be depressed. A bowl clamp (260) is engageable with the receiving port (263) and configured to removably secure the housing (12, 212) to a bowl (261) and includes the switch engagement member (332). A side handle (27, 227, 227') is engageable with the receiving port (263) and is configured to be removably coupled with the housing (12, 212) and aid a user in handling the mixing appliance (10, 100, 200).