Hotplate device

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Solution Overview

Problem

Existing hob devices require time-consuming screwing processes and multiple assembly units for installation, leading to increased assembly time and complexity.

Innovation Solution

A hob device with integrated assembly units that combine centering and fastening functions using form-fitting means, such as a spring element and latching elements, allowing for a single, efficient assembly process that reduces the need for multiple operator actions and tools.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional screw connections and separate assembly units are used for installing the hob, then reliable attachment and centering are achieved, but assembly time and operational complexity increase significantly

Engineering Contradiction:
Improveattachment reliabilityVSAvoidassembly time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent combines the fastening function and centering function into a single integrated assembly unit. The form-fitting connection element simultaneously performs both attachment to the appliance housing and centering of the hob plate, eliminating the need for separate screw connections and centering mechanisms. This merging of functions directly reduces assembly time while maintaining reliable attachment.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The assembly unit is designed as a multi-functional component that performs multiple tasks: fastening the hob plate to the appliance housing, centering the hob in the recess, and providing a form-fitting connection. This universal design allows a single component to replace multiple traditional assembly elements, reducing both assembly time and complexity while ensuring reliable attachment.

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

2Ease of operation

If multiple separate assembly units are used for fastening and centering, then functional requirements are met, but the number of assembly steps and operator actions increases

Engineering Contradiction:
Improveassembly simplicityVSAvoidnumber of assembly units
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent merges multiple separate assembly units into a single integrated assembly unit that combines fastening and centering functions. This reduces the number of assembly steps and operator actions required, as the single unit performs both attachment and centering in one operation, thereby improving ease of operation while reducing device complexity.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The assembly unit is designed as a universal component that performs multiple functions simultaneously - fastening the hob plate, centering it in the recess, and providing form-fitting connection. This multi-functionality eliminates the need for multiple separate assembly units, simplifying the assembly process and reducing operational complexity.

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

3Productivity

If form-fitting connections are used instead of screw connections, then assembly time is reduced, but attachment strength may be compromised

Engineering Contradiction:
Improveassembly speedVSAvoidattachment strength
Core Design Contradiction:
ProductivityVSStrength

Solution Approach 1:

The form-fitting connection element utilizes curved or inclined surfaces that guide the hob plate into proper alignment and engagement. The geometry of the form-fitting means provides mechanical advantage, distributing loads across the connection interface and ensuring secure attachment while maintaining rapid assembly capability.

Inventive Principle:
Principle #14Spheroidality (Curvature)

Solution Approach 2:

The design optimizes the geometric parameters of the form-fitting connection, including the shape, size, and orientation of the engagement surfaces. By carefully selecting these parameters, the connection achieves both rapid assembly and sufficient attachment strength, eliminating the trade-off between assembly speed and connection reliability.

Inventive Principle:
Principle #35Parameter changes

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 solution significantly reduces assembly time by eliminating the need for screwing and simplifying the installation process, while ensuring secure and flexible attachment of the hob plate to the appliance housing part, allowing for easy maintenance and replacement.

Implementation Method 1

the assembly unit has at least one centering means, which is in particular designed as a spring element which, in the assembled state, is preferably supported on one of the edges of the worktop delimiting the recess

Methodology Applied
Scientific EffectSpring force: Spring

Implementation Method 2

the assembly unit has at least one fastening element with a form-fitting means for forming a form-fitting connection with a hob plate unit of the hob, in particular for fastening the hob plate unit to an appliance housing part of the hob

Methodology Applied
Scientific EffectForm-fitting connection: Mechanical Fastener

Data Source

PatentEP3839355A1Hotplate device
Publication Date: 2021.06.23 BSH HAUSGERATE GMBH
  • EP3839355A1 patent drawingFigure 1
  • EP3839355A1 patent drawingFigure 2~3
  • EP3839355A1 patent drawingFigure 4~5

AI summary

The invention relates to a cooktop device (10) with at least one mounting unit (12) for centering a cooktop (14) in a recess of a worktop (16). To simplify assembly, it is proposed that the mounting unit (12) has at least one fastening element (18) with a positive locking means (20) for forming a positive locking connection with a cooktop plate unit (22) of the cooktop (14).