Magnetic Docking for Faucet Spray Head Retraction

Solution Overview

Problem

Conventional pull-out faucet systems face difficulties in achieving optimal retraction and secure docking of the spray head due to misplacement of the hose weight, leading to undesirable dangling of the spray head.

Innovation Solution

A magnetic docking system is introduced, comprising a socket with integrated magnetic coupling elements at the spout end and a bonnet with magnetic elements on the spray head, allowing for secure magnetic coupling and alignment to facilitate easy docking and undocking.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a weight is used to drag the hose downward for retraction, then the spray head moves toward the spout, but the spray head may undesirably dangle about the spout due to misplacement of the weight

Engineering Contradiction:

Improvedocking operationVSAvoiddocking reliability

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The patent replaces the weight-based mechanical retraction system with a magnetic docking system. The magnetic coupling elements (permanent magnets or electromagnets) in the spout and spray head create magnetic attraction forces that securely dock the spray head to the spout, eliminating the need for weights and the associated reliability issues of dangling or misplacement.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent introduces magnetic coupling elements as an intermediary mechanism between the spout and spray head. These magnetic elements serve as a mediator that provides reliable docking without direct mechanical contact, solving the problem of weight misplacement causing unreliable docking.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Productivity

If a weight-based retraction system is used, then the hose is pulled downward, but optimal retraction and secure docking are difficult to achieve

Engineering Contradiction:

Improveretraction efficiencyVSAvoiddocking ease

Core Design Contradiction:

ProductivityVSEase of operation

Solution Approach 1:

The patent replaces the weight-based mechanical retraction system with a magnetic docking system. The magnetic coupling elements (permanent magnets or electromagnets) in the spout and spray head create magnetic attraction forces that securely dock the spray head to the spout, eliminating the need for weights and the associated reliability issues of dangling or misplacement.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Reliability

If conventional docking mechanisms are used, then the spray head can be docked, but misalignment and dangling occur due to weight placement issues

Engineering Contradiction:

Improvedocking stabilityVSAvoiddocking mechanism complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent replaces the weight-based mechanical retraction system with a magnetic docking system. The magnetic coupling elements (permanent magnets or electromagnets) in the spout and spray head create magnetic attraction forces that securely dock the spray head to the spout, eliminating the need for weights and the associated reliability issues of dangling or misplacement.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

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 magnetic docking system ensures the spray head is securely docked and easily undocked, improving the retraction process and preventing misalignment issues, enhancing user convenience and functionality.

Implementation Method 1

a magnetic docking system, comprising a socket with integrated magnetic coupling elements at the spout end and a bonnet with magnetic elements on the spray head, allowing for secure magnetic coupling and alignment to facilitate easy docking and undocking

Methodology Applied

Scientific EffectMagnetic coupling: Magnetism

Data Source

PatentEP3259412B1Faucet spray head magnetic docking systems

Publication Date: 2024.04.24 AS AMERICA INC

Figure 1
Figure 2a~2d
Figure 2e~2h

AI summary

A faucet spray head magnetic docking system includes a socket that couples to an end of the spout, and a bonnet that couples to the spray head and that engages with the socket. The socket includes a shell configured to be arranged in the mouth of the spout, and integrated with one or more magnetic elements. The magnetic elements may be inserted into corresponding holes of the socket shell. Alternatively, the magnetic elements may be incorporated directly into the shell. The bonnet includes a threaded portion for coupling to corresponding threads of a connector at the spray head, and includes one or more corresponding magnets configured to magnetically attract to the magnetic elements of the socket.