Food Processor Rotational Locking Connector for Safe Power Supply

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Solution Overview

Problem

Existing household food preparation appliances lack effective safety measures and simplicity in design, making them potentially hazardous and complex to use.

Innovation Solution

A design featuring a base with a laterally arranged electric motorization connector, an upper motorized box with side pins, and an intermediate cover that allows for secure locking and electrical supply, enabling safe operation and easy handling.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the electric motorization connector is arranged vertically in the upright, then the structure is simple, but the upper motorized box cannot be securely locked and electrical supply is not safe

Engineering Contradiction:
ImprovesafetyVSAvoidconnector arrangement
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The electric motorization connector is moved from a vertical arrangement to a lateral arrangement in the upright, changing the spatial dimension of connection. This allows the upper motorized box to be securely locked through rotational engagement while ensuring safe electrical supply only when properly positioned.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The connection mechanism transitions from a static vertical connector to a dynamic rotational locking system. The upper motorized box can be rotated to engage with the lateral connector, providing both mechanical locking and electrical connection through a single rotational motion.

Inventive Principle:
Principle #15Dynamics

2Reliability

If multiple locking mechanisms are added to secure the upper motorized box, then safety is improved, but the device complexity increases

Engineering Contradiction:
Improvelocking safetyVSAvoidlocking mechanism
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The locking mechanism merges two functions into one: mechanical retention through rotation around the axis of rotation and electrical connection through engagement of the lateral connector. This single rotational action provides both locking and electrical supply, avoiding the need for separate locking mechanisms.

Inventive Principle:
Principle #5Merging (Combining)

3Ease of operation

If the upper motorized box is easily removable from the working container, then ease of operation is improved, but safety is compromised

Engineering Contradiction:
ImproveremovabilityVSAvoidsafety
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The connection system uses a dynamic rotational locking mechanism that requires a specific rotational motion to engage or disengage. This prevents accidental removal while maintaining ease of operation through a simple rotational action rather than complex locking procedures.

Inventive Principle:
Principle #15Dynamics

4Ease of operation

If electrical supply is always available, then ease of operation is improved, but safety is compromised due to improper assembly

Engineering Contradiction:
Improvecontinuous operationVSAvoidsafety
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The electrical supply is dynamically controlled through the rotational locking mechanism. Electrical contact is established only when the upper motorized box is properly rotated into the locked position, ensuring that power is supplied only when the device is correctly assembled and safe to operate.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentEP3528677B1Electrical household food-preparation appliance comprising a power supply base
Publication Date: 2021.09.08 SEB SA
  • EP3528677B1 patent drawingFigure 1
  • EP3528677B1 patent drawingFigure 2
  • EP3528677B1 patent drawingFigure 3

AI summary

- The invention concerns an electrical household food-preparation appliance comprising a working vessel (2), a rotary working accessory (57), a top motorised housing (4) arranged on the working vessel (2) in order to rotate the rotary working accessory (57) about an axis of rotation (58), a base receiving the working vessel (2) and comprising a post having an motor electrical connector for supplying power to the top motorised housing (4). - According to the invention, the motor electrical connector is arranged laterally in the post, the top motorised housing (4) comprises at least two lateral pins (44a, 44b, 44c), and the top motorised housing (4) can be turned on the working vessel (2) to bring the motor electrical connector into engagement with the lateral pins (44a, 44b, 44c) and supply power to the top motorised housing (4).