Magnetic Aquarium Pump Mounting for Flexible Bracketless Placement

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Solution Overview

Problem

Existing aquarium pumps are less than ideal due to mechanical brackets that obstruct viewing and are limited by their location, necessitating a more flexible and unobtrusive mounting solution.

Innovation Solution

A magnetically supported fluid pump assembly using outer and inner mounts with permanent magnets and soft magnetic materials to allow bracketless mounting on any desired position on the aquarium glass wall, enabling flexible placement and rotation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If mechanical brackets are used to support the pump, then the pump can be mounted and supported, but the brackets obstruct viewing of the aquarium contents

Engineering Contradiction:
Improvepump support stabilityVSAvoidviewing obstruction
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent replaces the mechanical bracket support system with a magnetic field-based support system. Permanent magnets mounted on the aquarium glass wall magnetically attract and hold the pump assembly, eliminating the need for mechanical brackets that would obstruct viewing. The magnetic field acts as an invisible support mechanism that provides reliable pump mounting without any physical obstructions in the aquarium view.

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

Solution Approach 2:

The patent extracts and removes the mechanical bracket component from the support system entirely. By using magnetic attraction between the permanent magnets on the glass wall and the magnetic components on the pump assembly, the support function is achieved without the bracket structure, thereby eliminating the viewing obstruction problem while maintaining pump support stability.

Inventive Principle:
Principle #2Taking out (Extraction)

2Reliability

If the pump is located at a fixed position determined by the bracket, then the pump can be supported, but the pump placement flexibility is limited

Engineering Contradiction:
Improvepump support stabilityVSAvoidpump placement flexibility
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent introduces dynamic positioning capability through the magnetic support system. The pump assembly can be freely positioned at any location on the aquarium glass wall where permanent magnets are mounted, and the magnetic attraction maintains stable support. This allows the pump to be dynamically repositioned to optimize water circulation patterns while maintaining reliable support, providing both stability and placement flexibility.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The magnetic support system serves multiple functions: it provides stable pump support, enables flexible positioning at any glass wall location, and allows easy repositioning to optimize circulation. The same magnetic attraction mechanism that provides stable support also enables universal placement flexibility across the entire aquarium glass surface.

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

3Force

If heavy pump weight is supported by brackets, then the pump can be mounted, but the mounting location is restricted to bottom or bracket positions

Engineering Contradiction:
Improvepump weight supportVSAvoidmounting location options
Core Design Contradiction:
ForceVSAdaptability or versatility

Solution Approach 1:

The patent replaces the mechanical bracket force transmission system with a magnetic field-based force system. The permanent magnets on the glass wall generate magnetic attraction forces that directly support the pump weight without requiring mechanical brackets. This magnetic force system can be applied at any location on the glass wall, providing both adequate weight support and unrestricted mounting location options.

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

Solution Approach 2:

The magnetic attraction force generated by the permanent magnets acts as a counterbalancing force to support the pump weight. The magnetic force effectively counteracts gravity, holding the pump assembly in position at any desired location on the glass wall without requiring mechanical support structures that would limit placement options.

Inventive Principle:
Principle #8Anti-weight (Counterweight)

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 unobstructed viewing and adjustable water circulation without mechanical supports, enhancing the aesthetic appeal and functionality of aquariums.

Implementation Method 1

magnetic attractive forces between the at least one outer permanent magnet and the at least one inner permanent magnet are sufficiently strong to permit mounting of the outer mount and the inner mount on opposite sides of a glass tank wall

Methodology Applied
Scientific EffectMagnetic attraction: Magnetism

Implementation Method 2

The outer permanent magnet, the inner permanent magnet, and the soft magnetic material collectively form a magnetic circuit

Methodology Applied
Scientific EffectMagnetic circuit: Magnetism

Data Source

PatentEP3876711B1Fluid pump assembly, container, and method for mounting said fluid pump assembly
Publication Date: 2025.09.10 ECOTECH LLC
  • EP3876711B1 patent drawingFigure 1~2
  • EP3876711B1 patent drawingFigure 3
  • EP3876711B1 patent drawingFigure 4

AI summary

The present invention relates to fluid pump assemblies in general, and in exemplary embodiments to fluid pump assemblies that are magnetically supported in position, and to related kits and methods useful to circulate water in aquariums. The fluid pump assembly (10) comprises an outer mount (20), an inner mount (30), and a pump (40). The outer mount includes at least one outer permanent magnet (22-25); the inner mount includes at least one inner permanent magnet (32-35); and the pump includes at least one soft magnetic material (36). The outer permanent magnet, the inner permanent magnet, and the soft magnetic material collectively form a magnetic circuit.