Instant Water Heater Passage Structure to Prevent Local Overheating

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Solution Overview

Problem

Instantaneous heating apparatuses face frequent deformation of heating passages, leading to local overheating and water splashing, which can cause user accidents like burns during water discharge.

Innovation Solution

The apparatus includes a passage forming member and a close-pressing part with a pressing member to securely form a heating passage between the heating part and the passage forming member, reducing deformation and overheating, and utilizing a silicon passage forming member with a spiral groove to maintain a stable heating passage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the heating passage is formed by combining various members in a fitting fashion to increase heating time and prevent local overheating, then the heating effectiveness is improved, but the heating passage deforms frequently during formation and use, leading to local overheating and water splashing

Engineering Contradiction:
Improveheating passage stabilityVSAvoidheating passage deformation
Core Design Contradiction:
ReliabilityVSManufacturing precision

Solution Approach 1:

The heating passage is formed by nesting the passage forming member inside the heating part, creating a concentric structure where the passage forming member fits within the heating part to define the heating passage space. This nested configuration improves structural stability while preventing deformation during formation and use.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The discharge member acts as an intermediary component that connects the heating passage to the external environment. It is inserted through the passage forming member and heating part, providing structural support and sealing functionality that prevents deformation and maintains heating passage integrity.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Temperature

If the heating passage has a predetermined volume to prevent local overheating, then water heating uniformity is improved, but the heating passage deforms and loses its predetermined volume, causing local overheating

Engineering Contradiction:
Improvewater heating uniformityVSAvoidheating passage volume stability
Core Design Contradiction:
TemperatureVSStability of the object's composition

Solution Approach 1:

The passage forming member is nested inside the heating part to precisely define and maintain the heating passage volume. This nested structure ensures the heating passage retains its predetermined volume during formation and use, preventing deformation that would cause local overheating.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The heating passage is pre-formed with a predetermined volume and shape before water heating occurs. The passage forming member is pre-positioned inside the heating part to establish the correct geometric configuration, ensuring uniform water heating from the beginning of operation.

Inventive Principle:
Principle #10Preliminary action

3Manufacturing precision

If the heating passage is formed by inserting one member inside another member, then the heating passage maintains predetermined volume and prevents local overheating, but the heating passage deforms during formation and use

Engineering Contradiction:
Improveheating passage volume controlVSAvoidheating passage deformation resistance
Core Design Contradiction:
Manufacturing precisionVSReliability

Solution Approach 1:

The discharge member serves as an intermediary structural element that is inserted through the passage forming member and heating part. This intermediary component provides reinforcement and sealing, preventing deformation of the heating passage while maintaining the predetermined volume established by the nested structure.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The multi-level nested structure consisting of the passage forming member inside the heating part, with the discharge member passing through both, creates a reinforced configuration. This nested arrangement with multiple interacting members improves deformation resistance while maintaining precise volume control.

Inventive Principle:
Principle #7Nested doll (Nesting)

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 significantly reduces deformation, prevents water splashing, and minimizes the risk of user accidents from overheated water discharge.

Implementation Method 1

a heating part for heating the water flowing in the flow part

Methodology Applied
Scientific EffectThermal conduction: Conduction (thermal)

Data Source

PatentEP3258186B1Instantaneous heating apparatus
Publication Date: 2019.03.13 COWAY CO LTD
  • EP3258186B1 patent drawingFigure 1
  • EP3258186B1 patent drawingFigure 2
  • EP3258186B1 patent drawingFigure 3

AI summary

An instantaneous heating apparatus is disclosed. The instantaneous heating apparatus according to one embodiment of the present invention comprises: a water inlet part into which water flows from the outside; a flow part in which the water, flowing into the water inlet part, flows; a heating part for heating the water flowing in the flow part; and a water outlet part for discharging, to the outside, the water heated by the heating part, wherein the flow part can comprise: a passage forming member disposed inside the heating part; and a close-pressing part for bringing the passage forming member into close contact with the heating part such that a heating passage is formed between the heating part and the passage forming member.