Cassette Heating Module Layout for Replaceable Hot Drink Machines

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Solution Overview

Problem

Existing heating modules for hot beverage machines are not optimized for space-saving designs and require numerous connecting lines, leading to increased error rates during installation and maintenance, and are not easily replaceable.

Innovation Solution

A modular design featuring two half-shells that form a cassette-like unit with integrated cavities for the pump, heater, and fluid channels, reducing the need for external connecting lines and allowing for preassembly and easy replacement, along with a pressure relief valve and temperature sensors for precise control.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If a conventional heating system with separate pump and heater components is used, then the system can be assembled with individual components, but the number of connecting lines increases and installation complexity increases

Engineering Contradiction:
Improvenumber of connecting linesVSAvoidassembly complexity
Core Design Contradiction:
Device complexityVSEase of manufacture

Solution Approach 1:

The patent combines the pump, heater, and connecting lines into an integrated heating module where the pump housing serves as part of the connecting structure. The pump housing has integrated water inlets and outlets that directly connect to the heater, eliminating the need for separate connecting lines and reducing assembly complexity.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The pump housing serves multiple functions: it houses the pump mechanism, provides structural support, and acts as a connecting element with integrated water pathways. This multi-functionality reduces the number of separate components needed in the system.

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

2Ease of repair

If individual components are used for pump and heater, then component replacement is possible, but replacement time increases and service costs increase

Engineering Contradiction:
Improvecomponent replaceabilityVSAvoidreplacement time
Core Design Contradiction:
Ease of repairVSLoss of time

Solution Approach 1:

The heating module is designed as a segmented, replaceable unit that can be easily removed and replaced as a complete assembly. The module includes the pump, heater, and all connecting lines as an integrated unit with standardized mounting interfaces, allowing quick replacement without complex disassembly.

Inventive Principle:
Principle #1Segmentation

3Adaptability or versatility

If multiple separate components are assembled manually, then system flexibility is maintained, but installation error rate increases

Engineering Contradiction:
Improvesystem flexibilityVSAvoidinstallation error rate
Core Design Contradiction:
Adaptability or versatilityVSManufacturing precision

Solution Approach 1:

The pump, heater, and connecting lines are pre-assembled and pre-tested as an integrated module before installation. This reduces installation errors by eliminating manual connection steps while maintaining system flexibility through the modular design that can be easily replaced or reconfigured.

Inventive Principle:
Principle #5Merging (Combining)

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

This design significantly reduces installation errors, simplifies maintenance, and minimizes leaks, while enabling a space-saving and functionally optimal arrangement of components, with reduced service costs and improved reliability.

Implementation Method 1

a pump (2) for pumping the water

Methodology Applied
Scientific EffectPumping: Pump

Implementation Method 2

a heater (3) for heating the water

Methodology Applied
Scientific EffectHeating: Heating

Data Source

PatentEP2526841B1Heating module for a hot drink machine or a hot drink device
Publication Date: 2013.06.05 SEVERIN ELEKTROGERATE
  • EP2526841B1 patent drawingFigure 1
  • EP2526841B1 patent drawingFigure 2
  • EP2526841B1 patent drawingFigure 3

AI summary

The heating module (1) has two cassette-like half-shells (6a,6b) that are provided with heating element cavity (7), fluid cavity (8) and fresh water inlet cavity (9). A pump (2) is arranged outside one half-shell. A heated water outlet (5) is connected with output unit (13) in the heating element cavity. A valve (15) is controlled with an inlet of fluid cavity. An inlet is arranged in the fresh water inlet cavity for supplying fresh water (4). An outlet (18) is provided in fluid cavity for discharging excess water.