Waterproof Smoke Generator Heating Module for Hot Ejection

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Solution Overview

Problem

Existing smoke generators face issues with water leakage leading to damage of electric circuits and poor atomization due to temperature drops at the ejection portion, causing condensation and reduced smoky effect.

Innovation Solution

A waterproof heating module with a heat exchanger, tightening member, and closure plate design that provides waterproof coupling and maintains the ejection portion at a working temperature above 200°C, using a fixture to squeeze the tightening member and a closure plate with low heat exchange efficiency to prevent water ingress and maintain temperature.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the ejection portion is extended to the outer side of the smoke generator, then the smoke can be ejected into the air, but the temperature at the ejection portion drops below 200°C due to heat exchange with the atmosphere

Engineering Contradiction:

Improvesmoke ejection capabilityVSAvoidejection portion temperature

Core Design Contradiction:

Ease of operationVSTemperature

Solution Approach 1:

The ejection portion is segmented from the heating module by extending it through the outer casing, allowing the heating element to remain thermally isolated while the ejection tip reaches the exterior. This segmentation enables smoke ejection functionality without compromising the thermal environment of the heating components.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent introduces an intermediary structure (the extended ejection portion with internal passage) that transports hot vapor from the heating module to the external environment. This intermediary allows thermal energy to be delivered outward without exposing the entire ejection path to atmospheric cooling.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Productivity

If the vaporization pipeline is coupled with the ejection portion, then smoke liquid can be vaporized and ejected, but water can enter the ejection portion causing temperature reduction

Engineering Contradiction:

Improvevaporization and ejection efficiencyVSAvoidwaterproofing reliability

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The tightening member acts as an intermediary sealing element between the vaporization pipeline and ejection portion. It provides a waterproof interface that allows thermal and material transfer while blocking water ingress, thus maintaining system reliability during outdoor operation.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The tightening member with sealing hole creates a flexible sealing arrangement that accommodates thermal expansion and contraction while maintaining waterproof integrity. This flexible sealing mechanism ensures continuous protection against water entry during temperature cycles.

Inventive Principle:

Principle #30Flexible shells and thin films

3Reliability

If the closure plate is used to provide waterproof coupling, then water ingress is prevented, but heat exchange efficiency between the ejection portion and atmosphere is reduced

Engineering Contradiction:

Improvewaterproof coupling reliabilityVSAvoidheat loss through closure plate

Core Design Contradiction:

ReliabilityVSLoss of energy

Solution Approach 1:

The closure plate functions as a thin film barrier that provides waterproof coupling while minimizing thermal mass. Its thin profile reduces heat storage and conduction losses, allowing the ejection portion to maintain operating temperature more effectively while still providing reliable water protection.

Inventive Principle:

Principle #30Flexible shells and thin films

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 design effectively prevents water ingress, maintains the ejection portion at the required temperature, and enhances the smoky effect by ensuring consistent vaporization.

Implementation Method 1

a heat exchanger including an ejection portion and a vaporization pipeline... heats and, thus, vaporizes a smoke liquid into a smoke

Methodology Applied

Scientific EffectHeating: Heating

Implementation Method 2

the tightening member is in waterproof coupling with the outlet end of the vaporization pipeline, and the tightening member is also in waterproof coupling with the ejection portion

Methodology Applied

Scientific EffectWaterproof coupling:

Implementation Method 3

a closure plate... with low heat exchange efficiency to prevent water ingress and maintain temperature

Methodology Applied

Scientific EffectThermal insulation: Thermal Insulation

Data Source

PatentUS12551819B2Waterproof heating module for smoke generator

Publication Date: 2026.02.17 NOVACORP INC

AI summary

A waterproof heating module for a smoke generator comprises a heat exchanger (45) including an ejection portion (115) configured to eject smoke. The heat exchanger (45) is received in an inner side of an outer casing (135). The ejection portion (115) extends through a through-hole (139) of the outer casing (135) to an outer side of the outer casing (135). A closure plate (155) includes a closure face (157) and a coupling hole (159) extending through the closure face (157). The coupling hole (159) of the closure plate (155) has an inner periphery (160) in waterproof coupling with an outer periphery of the ejection portion (115). The ejection portion (115) extends out of the closure plate (155) via the coupling hole (159). The closure face (157) of the closure plate (155) is in waterproof coupling with the through-hole (139) of the outer casing (135).