Modular Interface and Control Unit for Upgradable Cooking Appliances

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Solution Overview

Problem

Existing food preparation appliances face challenges in upgrading their interface and control assemblies to include new control functions due to space constraints and the inability to easily replace or update them with the latest versions, which limits the development of additional functionalities and user safety features.

Innovation Solution

An integrated interface and control assembly with a communication circuit that allows remote control and updates, enabling the transfer of control signals and information via a bidirectional communication protocol, while retaining the mechanical and power components, and incorporating safety features like movement detection and user confirmation for task execution.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the interface and control assembly is integrated into the housing with fixed geometry, then the mechanical structure is stable, but the ability to add new control functions is limited due to space constraints

Engineering Contradiction:
Improveability to add new control functionsVSAvoidspace available in housing
Core Design Contradiction:
Adaptability or versatilityVSArea of stationary object

Solution Approach 1:

The control assembly is divided into separate functional modules: control circuit, communication circuit, and user interface elements. This segmentation allows selective replacement and upgrading of individual components without redesigning the entire housing structure, enabling new control functions to be added in limited space.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The control circuit is designed with universal interfaces and standardized mounting structures that can accommodate different control functions and configurations. The socket connection system allows the same physical assembly to support multiple functional versions, maximizing the use of available space for diverse control capabilities.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Ease of repair

If the control assembly is designed as a single integrated unit, then it is easy to replace, but it cannot be upgraded with newer versions that have more control functions

Engineering Contradiction:
Improveease of replacementVSAvoidupgradability to newer versions
Core Design Contradiction:
Ease of repairVSAdaptability or versatility

Solution Approach 1:

The control assembly uses modular segmentation with standardized interfaces between components. The control circuit, communication circuit, and user interface are separate replaceable modules that can be independently upgraded. This maintains the ease of replacement benefit while enabling progressive upgrades to newer functional versions.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system is designed with dynamic upgradability in mind, allowing the control circuits to be updated independently of the mechanical housing. The standardized socket connections and mounting structures enable the assembly to evolve from simpler to more complex control versions without changing the fundamental replacement mechanism.

Inventive Principle:
Principle #15Dynamics

3Adaptability or versatility

If control functions are added to the interface and control assembly, then the functionality is enhanced, but the size and complexity of the assembly increases

Engineering Contradiction:
Improvecontrol functionalityVSAvoidassembly complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

Control functions are segmented into separate circuit modules rather than being integrated into a single complex unit. Each functional module (control circuit, communication circuit, sensor interfaces) can be independently designed, tested, and replaced, reducing overall assembly complexity while maintaining enhanced functionality.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Standardized interface circuits and communication protocols act as intermediaries between different control functions and the main control circuit. This intermediary layer simplifies the integration of new control functions by providing uniform connection standards, thereby enhancing functionality without proportionally increasing assembly complexity.

Inventive Principle:
Principle #24Intermediary (Mediator)

4Area of stationary object

If the control assembly is made compact to fit housing constraints, then space is saved, but the ability to include new control and command elements is reduced

Engineering Contradiction:
Improvespace utilizationVSAvoidinclusion of new control elements
Core Design Contradiction:
Area of stationary objectVSAdaptability or versatility

Solution Approach 1:

The control assembly utilizes three-dimensional space more efficiently by stacking circuit boards and arranging components in multiple layers rather than spreading them out in a single plane. This vertical arrangement maintains a compact footprint while providing sufficient space for additional control elements and communication circuits.

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

Solution Approach 2:

Smaller control circuit boards and components are nested within the housing structure and around existing mechanical elements, utilizing otherwise wasted space. The control circuits are arranged to fit within the contours of the housing and mechanical components, maximizing space utilization while accommodating enhanced control functionality.

Inventive Principle:
Principle #7Nested doll (Nesting)

Data Source

PatentEP3389454B1Interface and control unit
Publication Date: 2024.04.17 SEB SA
  • EP3389454B1 patent drawingFigure 1
  • EP3389454B1 patent drawingFigure 2~3
  • EP3389454B1 patent drawingFigure 4~6

AI summary

The invention relates to an interface and control unit (27) for a cooking appliance, comprising: a control circuit (19) comprising a connection point (20) for connecting to a power circuit (18) of the cooking appliance (A) or to an element for connection to said power circuit (18), the control circuit being arranged so as to emit a control signal for at least one functional element of the cooking appliance; a communication circuit (25) arranged so as to communicate according to a known communication protocol, for example a protocol for two-way communication by radio waves, the communication circuit (25) also being able to exchange information with the control circuit (19); and a support to which are attached, or in which are arranged, the control circuit (19) and the communication circuit (25), the support comprising elements for fixing to a frame of the cooking appliance (A).