Steam Hairdressing Appliance Pump Control

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Solution Overview

Problem

Existing hairdressing appliances using steam lack compactness, robustness, and the ability to provide a continuous, responsive, and controlled steam flow, especially in hot environments, with no means to regulate or stop the steam flow effectively.

Innovation Solution

A steam hairdressing device with a control unit that maintains a continuous and demand-responsive steam flow by using a peristaltic pump and microcontroller to manage fluid flow, adjusting based on heating temperature, internal pipe volume, and pressure, ensuring efficient vaporization and automatic control of steam production.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If manual actuation control is used for the pump, then the user can choose when to apply steam, but the pump takes several seconds to prime and deliver fluid, resulting in delayed steam production

Engineering Contradiction:
Improveuser control of steam applicationVSAvoidsteam response time
Core Design Contradiction:
Ease of operationVSLoss of time

Solution Approach 1:

The pump is activated in advance during a priming phase before steam generation is actually needed. This preliminary action fills the fluid transport line and vaporization chamber with liquid, so that when the user activates steam generation, the pump responds immediately without delay. The control unit manages this timing, activating the pump before heat is applied to ensure fluid is ready for immediate vaporization.

Inventive Principle:
Principle #10Preliminary action

2Stability of the object's composition

If a porous element is used to bring liquid into contact with the heating block, then a constant flow of steam is achieved, but the steam flow cannot be stopped or regulated effectively

Engineering Contradiction:
Improveconstant steam flowVSAvoidsteam flow control
Core Design Contradiction:
Stability of the object's compositionVSAdaptability or versatility

Solution Approach 1:

The mechanical porous element system is replaced with an electronically controlled pump and valve system managed by a microcontroller. This substitution allows precise electronic control of fluid flow to the vaporization chamber, enabling the user to start, stop, and regulate steam flow dynamically through electronic signals rather than relying on passive porous material saturation.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The control unit monitors the state of the vaporization chamber and fluid transport line, and adjusts pump operation accordingly. This feedback mechanism ensures continuous fluid supply when needed while allowing the system to respond to user demands, maintaining stable flow during operation and enabling complete stop when steam is not required.

Inventive Principle:
Principle #23Feedback

3Reliability

If the fluid transport line is not kept filled with fluid, then the fluid adjustment means may be compromised, but the pump and system experience excessive strain operating continuously

Engineering Contradiction:
Improvefluid adjustment means functionalityVSAvoidpump strain
Core Design Contradiction:
ReliabilityVSPower

Solution Approach 1:

Instead of continuous pump operation, the system uses periodic activation. The pump runs in brief cycles to refill the fluid transport line and vaporization chamber when fluid levels drop, then stops to allow the system to maintain pressure and temperature. This periodic action reduces cumulative pump strain while ensuring fluid is available when needed for steam generation.

Inventive Principle:
Principle #19Periodic action

4Reliability

If the device is designed to be compact and robust, then it can operate reliably in hot environments, but the complexity of controlling multiple parameters increases

Engineering Contradiction:
Improveoperation in hot environmentsVSAvoidcontrol system complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The microcontroller serves multiple functions: it controls the pump timing and duration, regulates fluid flow to the vaporization chamber, monitors system state, and manages the heating element. By consolidating these control functions into a single intelligent controller, the system achieves reliable operation in hot environments without proportionally increasing overall device complexity, as one component performs multiple regulatory roles.

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

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 device achieves a continuous and responsive steam flow, ensuring efficient operation, safety, and ease of use, even in hot environments, with a compact and robust design that maintains steam production without excessive strain on components.

Implementation Method 1

The pump is of the peristaltic type

Methodology Applied
Scientific EffectPeristalsis: Peristalsis

Implementation Method 2

a means for vaporizing the fluid (7)

Methodology Applied
Scientific EffectVaporization: Evaporation

Data Source

PatentEP2765884B1Steam hairdressing appliance having a controlled pump
Publication Date: 2015.09.23 SEB SA
  • EP2765884B1 patent drawingFigure 1~2
  • EP2765884B1 patent drawingFigure 3~4
  • EP2765884B1 patent drawingFigure 5

AI summary

The invention relates to a steam hairdressing appliance for styling the hair, including: a fluid tank; a chamber for vaporizing the fluid, comprising at least one fluid inlet and at least one outlet for the egress of steam toward the hair; a pipe for transporting the fluid between the tank and the inlet of the vaporisation chamber, the end of said pipe being arranged at least partially inside said chamber; a means for adjusting the fluid flow rate, which acts on the pipe; a control unit for controlling at least the means for adjusting the fluid flow rate; and at least one actuating means capable of emitting an actuation signal towards the control unit in order to control the means for adjusting the flow rate, wherein the control unit comprises a counter for counting down from a predetermined countdown time and a compensation means for ensuring the means for adjusting the flow rate is not actuated such that, when the countdown D1 ends without receiving the actuation signal, the means for adjusting the flow rate is controlled automatically for a predetermined temporary period.