Electrical Heating Device

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Solution Overview

Problem

Existing electrical heating devices with multiple heating chambers suffer from uneven heat dissipation due to temperature variances in the medium flowing through each chamber.

Innovation Solution

The proposed electrical heating device includes a distributor that splits the medium into two partial flows, which are then heated in separate chambers, ensuring both flows enter at identical temperatures and are heated uniformly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Power

If the medium flows sequentially through multiple heating chambers, then the heating device can heat the medium in stages, but the temperature variance between chambers causes uneven heat dissipation

Engineering Contradiction:

Improveheating capacityVSAvoidtemperature uniformity

Core Design Contradiction:

PowerVSTemperature

Solution Approach 1:

The heating device is divided into multiple heating chambers (first heating chamber, second heating chamber, etc.), each equipped with its own heating element. The distributor divides the medium flow into separate partial flows that simultaneously enter different heating chambers, allowing staged heating while maintaining temperature uniformity across chambers.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

A distributor is introduced as an intermediary component that receives the incoming medium flow and divides it into multiple partial flows. This distributor ensures that each heating chamber receives medium at the same initial temperature, enabling uniform heat dissipation across all chambers while maintaining the staged heating capability.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Device complexity

If heating chambers are arranged in series, then the device structure is simplified, but heat dissipation becomes uneven across chambers

Engineering Contradiction:

Improvestructural simplicityVSAvoidheat dissipation efficiency

Core Design Contradiction:

Device complexityVSLoss of energy

Solution Approach 1:

The heating system is segmented into multiple independent heating chambers, each with its own heating element and medium flow path. This segmentation allows each chamber to operate independently with uniform heat dissipation, while the overall structure remains relatively simple through the use of a common distributor component.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The distributor acts as a mediating component that enables parallel flow distribution to multiple heating chambers. This intermediary structure maintains structural simplicity by using a single distribution point while achieving uniform heat dissipation across all chambers through simultaneous medium distribution.

Inventive Principle:

Principle #24Intermediary (Mediator)

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 configuration achieves more uniform heating of the medium and heat dissipation across both heating chambers, addressing the issue of temperature variance and improving overall heating efficiency.

Implementation Method 1

an electrical heating assembly which is provided between the first heating chamber and the second heating chamber and is coupled to the first heating chamber and the second heating chamber in a heat-conducting manner

Methodology Applied

Scientific EffectJoule heating: Joule Heating

Implementation Method 2

a distributor is formed through which the medium is distributed between the first heating chamber and the second heating chamber, wherein the distributor comprises a distributing body through which the medium introduced into the distributor is divided into a first partial flow which is conducted into the first heating chamber and a second partial flow which is conducted into the second heating chamber

Methodology Applied

Scientific EffectFluid flow distribution:

Implementation Method 3

Methodology Applied

Scientific EffectThermal conduction: Conduction (thermal)

Data Source

PatentUS20250056677A1Electrical Heating Device

Publication Date: 2025.02.13 EBERSPACHER CATEM GMBH & CO KG

AI summary

An electrical heating device comprises two heating chambers between which an electrical heating assembly is formed. Via a distributor a flow of a medium to be heated entering the electrical heating device in the inflow direction is divided into a first partial flow and a second partial flow. The first partial flow flows through the first heating chamber, while the second partial flow flows through the second heating chamber. For this purpose, the distributor has a distributing body, which may be configured as a conical bod that is rotationally symmetrical about an axis of symmetry. The axis of symmetry may be parallel to an inlet axis. Alternatively, the distributing body can also be configured as an overflow edge.