Battery-Powered Fluid Mixing Device with Rack and Pinion Extrusion

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Solution Overview

Problem

Existing fluid mixing devices are complex, leave traces when switching between mixtures, and do not allow independent treatment of base and additive fluids, making them difficult to use and clean.

Innovation Solution

A portable, battery-operated fluid mixing device that uses independent containers with a mechanical extrusion system to mix fluids without leaving traces, featuring a rack and pinion mechanism and electronic container level detection for easy operation and maintenance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a mechanical extrusion system with independent containers is used, then fluids can be treated independently and mixed without traces, but the device complexity increases

Engineering Contradiction:
Improveindependent treatment of base and additive fluidsVSAvoidmechanical extrusion system structure
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The device divides the fluid storage and dispensing system into separate independent containers for base fluid and additive fluids. Each container has its own extrusion mechanism, allowing independent treatment and control of each fluid type before mixing. This segmentation enables trace-free operation when switching between different fluid combinations.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The mechanical extrusion system is designed with universal components that can handle different types of fluids through the same basic mechanism. The extrusion heads and containers are designed to work with various fluid viscosities and properties, making the complex system adaptable to multiple fluid types without requiring separate specialized mechanisms for each.

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

2Adaptability or versatility

If containers are made interchangeable for different fluids, then versatility is improved, but traces from previous fluids may remain

Engineering Contradiction:
Improveinterchangeable containers for different fluidsVSAvoidresidual traces when switching fluids
Core Design Contradiction:
Adaptability or versatilityVSObject-generated harmful factors

Solution Approach 1:

The invention extracts the mixing and dispensing function from the container itself, using separate disposable or removable containers that are emptied completely through mechanical extrusion. This separation allows the container to be fully emptied without residual traces, while the permanent device housing remains clean and ready for the next fluid combination.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The system is designed to completely discard the fluid contents of interchangeable containers through full mechanical extrusion, ensuring no traces remain. The containers can be discarded after use or recovered and refilled, while the device itself maintains a clean state ready for the next fluid combination, eliminating cross-contamination.

Inventive Principle:
Principle #34Discarding and recovering

3Measurement precision

If electronic container level detection is implemented, then monitoring precision is improved, but device complexity increases

Engineering Contradiction:
Improvecontainer level detectionVSAvoidelectronic detection system
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The invention replaces complex mechanical level sensing mechanisms with electronic detection systems. Simple electronic sensors (such as capacitive, resistive, or optical sensors) are integrated into the container or device housing to detect fluid levels, providing precise monitoring without the mechanical complexity of float mechanisms or mechanical gauges.

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

4Ease of operation

If the device is made portable and battery-operated, then ease of operation is improved, but power consumption becomes a constraint

Engineering Contradiction:
Improveportability and battery operationVSAvoidbattery power consumption
Core Design Contradiction:
Ease of operationVSUse of energy by moving object

Solution Approach 1:

The mechanical extrusion system operates in periodic cycles rather than continuously. The containers are extruded completely over a set period, and the system remains idle between cycles. This periodic operation significantly reduces average power consumption compared to continuous operation, making battery operation feasible for portable use.

Inventive Principle:
Principle #19Periodic action

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

Enables instant, personalized mixing of cosmetic creams or other fluids with no residual traces, allowing for easy interchange of containers and real-time level monitoring, ensuring efficient and clean operation.

Implementation Method 1

a rack and pinion mechanism

Methodology Applied
Scientific EffectRack and pinion: Rack and Pinion

Implementation Method 2

mechanical extrusion system to mix fluids

Methodology Applied
Scientific EffectExtrusion: Extrusion

Data Source

PatentEP3632528B1Fluid mixing device
Publication Date: 2023.04.05 LESIELLE COSMETICS SL
  • EP3632528B1 patent drawingFigure 1
  • EP3632528B1 patent drawingFigure 1A~1B
  • EP3632528B1 patent drawingFigure 2

AI summary

The invention relates to a fluid mixing device which mixes a base fluid with one or more additive fluids coming from respective containers, said device being characterised in that it is quick and easy to use and in that no traces are left between uses. The device comprises a first module (1) for extracting at least one first fluid contained in at least one base fluid container (23), a drag, extrusion and discharge mechanism (2), a second module (3) for extracting one or more second fluids or additive fluids from one or more additive containers (24), a mixing tank (4) provided with a hole for the discharge of the final mixture, a battery-powered electronic control board (27), wherein a single stepper motor is used for applying pressure to the base fluid container and the additional fluid container(s), and the drag, extrusion and discharge mechanisms (2) are actuated.