Magnetic Sprayhead Coupling for Easy Release and Durable Retention

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Solution Overview

Problem

Faucets with pullout sprayheads often have connectors that degrade over time, losing retaining force, and may be too difficult for users to couple or uncouple due to excessive force requirements.

Innovation Solution

A magnetic coupling system using magnets and magnetically attractive materials, such as iron or steel, on the faucet head and body, allowing for easy attachment and detachment by switching between attracting and repelling modes through the orientation of magnetic fields.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If locking bayonet connectors or collars with snap fingers are used to couple the sprayhead to the faucet body, then the sprayhead can be securely retained, but the retaining force may be too great for users to overcome when attempting to uncouple the sprayhead

Engineering Contradiction:
Improveretaining forceVSAvoidease of uncoupling
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent replaces the mechanical locking system (bayonet connectors, collars, snap fingers) with a magnetic field-based coupling system. The magnetic field provides retaining force through magnetic attraction between the faucet body and sprayhead, eliminating the need for complex mechanical locking components while enabling easy uncoupling by simply overcoming the magnetic force through pulling motion.

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

Solution Approach 2:

The patent utilizes the property of magnetic fields to provide a retaining force that can be easily overcome by changing the parameter of applied force. The magnetic coupling strength can be designed to provide sufficient retention during normal use but can be easily overcome by a simple pulling motion, solving the contradiction between secure retention and ease of uncoupling.

Inventive Principle:
Principle #35Parameter changes

2Reliability

If connectors formed of collars and resilient snap fingers are used, then the sprayhead can be coupled to the faucet body, but the retaining force decreases with continual use as the components degrade

Engineering Contradiction:
Improveretaining forceVSAvoidservice life
Core Design Contradiction:
ReliabilityVSDuration of action of stationary object

Solution Approach 1:

The patent replaces degradable mechanical components (collars, snap fingers) with a magnetic field-based system that has no moving or resilient parts to wear out. The magnetic coupling mechanism eliminates wear and degradation issues inherent in mechanical connectors, significantly extending the service life while maintaining consistent retaining force.

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

Solution Approach 2:

The patent eliminates the need for complex mechanical components that require maintenance or replacement over time. The simple magnetic coupling system with no moving parts avoids the degradation and wear problems that plague mechanical connectors, providing a durable long-term solution.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

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

Provides a durable and user-friendly mechanism for coupling and uncoupling the sprayhead, ensuring consistent performance and ease of use by adjusting the magnetic force as needed.

Implementation Method 1

The magnet may have a magnetic field and the other of the faucet head and the faucet body may include an electromagnet

Methodology Applied
Scientific EffectMagnetic field: Magnetic Field

Implementation Method 2

a magnetic coupling may include a magnet disposed on either one of the faucet head and the faucet body, and a magnetically attractive material disposed on the other of the faucet head and the faucet body

Methodology Applied
Scientific EffectMagnetism: Magnetism

Implementation Method 3

the other of the faucet head and the faucet body may include an electromagnet. The electromagnet is switchable between an energized state and a de-energized state, wherein in the energized state the electromagnet exhibits an electromagnetic field oriented in a direction opposite the magnetic field of the magnet and thereby repels the faucet body from the faucet head

Methodology Applied
Scientific EffectElectromagnetic field: Electromagnet

Data Source

PatentUS12037776B2Magnetic coupling for sprayheads
Publication Date: 2024.07.16 DELTA FAUCET COMPANY
  • US12037776B2 patent drawing
  • US12037776B2 patent drawing
  • US12037776B2 patent drawing

AI summary

A faucet including a faucet head, a body and a magnetic coupling releasably coupling the faucet head to the faucet body.