Spring-Biased Transparent Cover for Submersible Pump Battery

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Solution Overview

Problem

Conventional submersible pump battery housings face challenges in providing convenient access while maintaining water protection, leading to restricted battery utilization and maintenance, and existing rain protection systems do not adequately address this issue.

Innovation Solution

A rain protection system with a cover hingedly coupled to the control housing, biased by a spring to remain closed, made of transparent material for monitoring and heat radiation, allowing access in an open state for maintenance and replacement, and ensuring protection from water and dust.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the control housing is made waterproof to protect the battery from rain and impurities, then the battery is protected from environmental agents, but access to the battery becomes difficult and restricted

Engineering Contradiction:
Improveprotection from water and impuritiesVSAvoidaccess to battery
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The control housing is segmented into a fixed housing and a movable cover that can be opened independently. This allows the housing to remain waterproof when closed while providing easy access to the battery when the cover is opened, resolving the contradiction between protection and accessibility.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The cover is made dynamic rather than fixed, allowing it to transition between closed (protective) and open (accessible) states. This dynamic element enables the system to provide both waterproof protection and easy battery access as needed, eliminating the need for permanent access openings that would compromise water resistance.

Inventive Principle:
Principle #15Dynamics

2Reliability

If a latch mechanism is added to keep the cover closed for water protection, then the waterproofing is improved, but the device complexity increases

Engineering Contradiction:
Improvewaterproof sealingVSAvoidlatch mechanism
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The spring-loaded latch mechanism is designed to be self-actuating - it automatically engages when the cover is closed and automatically disengages when sufficient force is applied to open it. This self-service mechanism provides reliable waterproof sealing without requiring complex control systems or multiple components, minimizing device complexity while maintaining high reliability.

Inventive Principle:
Principle #25Self-service

3Illumination intensity

If the cover is made transparent for monitoring and heat radiation, then visual monitoring and heat dissipation are improved, but the protection from environmental agents may be compromised

Engineering Contradiction:
Improvevisual monitoring and heat radiationVSAvoidprotection from environmental agents
Core Design Contradiction:
Illumination intensityVSObject-affected harmful factors

Solution Approach 1:

The cover is made transparent only in the specific areas where monitoring and heat radiation are needed, while maintaining the overall structural integrity and protective function. This localized application of transparency allows visual monitoring and thermal passage without compromising the cover's ability to protect against rain and impurities, as the transparent material still provides physical barrier protection.

Inventive Principle:
Principle #3Local quality

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 solution provides user-friendly access to the battery while maintaining protection from environmental agents, enhancing battery utilization and longevity by allowing efficient heat dissipation and visual monitoring without compromising water resistance.

Implementation Method 1

a biasing means (spring) which is actuated by means of the control unit to change between the open state and the closed state of the cover

Methodology Applied
Scientific EffectSpring (elasticity): Spring

Implementation Method 2

the cover is biased by a biasing means to remain in the closed state of the cover

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 3

the cover is made of transparent material for monitoring and heat radiation

Methodology Applied
Scientific EffectThermal radiation: Thermal Radiation

Data Source

PatentEP3746660B1Rain protection for battery of a submersible pump
Publication Date: 2023.04.05 HUSQVARNA AB
  • EP3746660B1 patent drawingFigure 1
  • EP3746660B1 patent drawingFigure 2
  • EP3746660B1 patent drawingFigure 3

AI summary

A rain protection system (RPS) (100) includes a pump (110) having a pump housing (112). The (RPS) (100) includes a power source (202) housed within a control housing (120). The (RPS) (100) includes a control unit (122) housed inside the control housing (120). The control unit (122) at least partially controls the pump (110). The (RPS) (100) includes a cover (124) hingedly coupled to the control housing (120) such that the cover (124) moves between an open state and a closed state. Further, the cover (124) allows access to the power source (202) in the open state of the cover (124). The (RPS) (100) is characterized in that the cover (124) is biased by a biasing means (say a spring (128)) to remain in the closed state of the cover (124).