Sheltered Sprayer Battery Mount for Fluid Spray Protection

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Solution Overview

Problem

Existing battery-powered fluid sprayers face issues with moisture-sensitive components being damaged by spray droplets, leading to potential battery failure and operational inefficiencies.

Innovation Solution

A fluid sprayer design that protects the battery from spray droplets by enclosing it within a sheltered structure, allowing for easy access and cooling while preventing fluid ingress, using a combination of projections, guards, and open cavities to facilitate mounting and dismounting.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the battery is exposed for easy access and cooling, then ease of operation and cooling efficiency are improved, but the battery becomes vulnerable to fluid spray damage

Engineering Contradiction:
Improvebattery protection from fluid damageVSAvoidbattery access and cooling
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent employs a shelter structure with open cavities that acts as a protective barrier for the battery. The shelter includes a first open cavity that receives the battery while allowing airflow for cooling, and a second open cavity that provides access to the battery. This structure protects the battery from fluid spray while maintaining operational accessibility and thermal management.

Inventive Principle:
Principle #30Flexible shells and thin films

2Object-affected harmful factors

If the battery is enclosed in a shelter, then protection from fluid spray is improved, but access for maintenance and cooling airflow are restricted

Engineering Contradiction:
Improvefluid ingress preventionVSAvoidbattery access for maintenance
Core Design Contradiction:
Object-affected harmful factorsVSEase of repair

Solution Approach 1:

The shelter is segmented into multiple open cavities: a first open cavity that receives and protects the battery while allowing cooling airflow, and a second open cavity that provides access to the battery for maintenance. This segmentation enables the battery to be protected from fluid ingress while remaining accessible for repair and maintenance activities.

Inventive Principle:
Principle #1Segmentation

3Ease of operation

If the battery mounting structure includes guards and projections, then ease of mounting and dismounting is improved, but device complexity increases

Engineering Contradiction:
Improvebattery mounting and dismountingVSAvoidmounting structure complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The mounting structure includes a projection on the battery that engages with a guard in the shelter to facilitate automatic alignment and mounting. This self-aligning mechanism simplifies the mounting and dismounting process while minimizing the need for complex fastening systems, thereby reducing overall device complexity.

Inventive Principle:
Principle #25Self-service

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

Effectively shields the battery from fluid spray, ensuring reliable operation and easy maintenance, while maintaining airflow for cooling and preventing fluid accumulation, thus enhancing the sprayer's durability and usability.

Implementation Method 1

The battery provides electrical power for operation of components of the fluid sprayer

Methodology Applied
Scientific EffectBattery (electricity): Battery (electricity)

Implementation Method 2

including an electric motor that powers a pump

Methodology Applied
Scientific EffectElectric motor: Electromagnetic Induction

Implementation Method 3

The pump draws the spray fluid from a reservoir, pressurizes the fluid, and drives the fluid downstream to a spray gun where the fluid is emitted as a spray through the nozzle

Methodology Applied
Scientific EffectFluid spray: Fluid Spray

Data Source

PatentEP4122605B1Fluid sprayer with covered battery
Publication Date: 2026.03.11 GRACO MINNESTOA INC
  • EP4122605B1 patent drawingFigure 1A
  • EP4122605B1 patent drawingFigure 1B~1C
  • EP4122605B1 patent drawingFigure 2A

AI summary

A battery powered fluid sprayer (10) includes a shelter (18) that the battery (12) is mounted in to provide power to the electric components of the sprayer (10). The shelter (18) protects the battery (12) from falling fluid droplets. The shelter (18) extends above the battery (12) and projects outward laterally and longitudinally to protect the battery (12). The battery (12) can move vertically downward to dismount from the fluid sprayer (10).