Water Purifier Cover Magnet Reed Switch Sterilizer Control

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Conventional water purifiers require additional manipulation to operate or stop the sterilizer when the water storage tank cover is opened or closed, which is inconvenient for users.

Innovation Solution

A water purifier design that integrates a sterilizer controlled by a switching module activated by a magnet and reed switch system, where the sterilizer is automatically turned on when the water storage tank cover is closed and turned off when opened, eliminating the need for manual operation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a conventional water purifier uses a separate heater and cooling system, then hot and cold water can be supplied, but the device complexity increases

Engineering Contradiction:
Improvewater temperature controlVSAvoidsystem structure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent combines the heater and cooling system into an integrated temperature control unit that shares common components and control logic, reducing the overall system complexity while maintaining the capability to provide both hot and cold water

Inventive Principle:
Principle #5Merging (Combining)

2Ease of operation

If manual operation is required to control the sterilizer, then the operation process becomes simple and direct, but user convenience decreases

Engineering Contradiction:
Improvesterilizer controlVSAvoidcontrol system
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The sterilizer automatically activates when the water storage tank cover is closed and deactivates when opened, eliminating the need for manual user intervention. The system detects the cover state and autonomously controls the sterilizer operation, improving ease of use while adding automatic detection functionality

Inventive Principle:
Principle #25Self-service

3Reliability

If the sterilizer operates continuously, then water sterilization is ensured, but energy consumption increases

Engineering Contradiction:
Improvewater sterilizationVSAvoidsterilizer energy consumption
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The sterilizer operates periodically based on water storage tank cover closure events rather than continuously. Each closure triggers a sterilization cycle, ensuring water remains sterilized through repeated short cycles while significantly reducing total energy consumption compared to continuous operation

Inventive Principle:
Principle #19Periodic action

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

This design simplifies the operation of the sterilizer, ensuring it is automatically activated when the tank is sealed and deactivated when opened, enhancing user convenience without additional manipulation.

Implementation Method 1

The operation member includes a magnet that is configured to generate a magnetic field, and wherein the switching module includes a reed switch that is configured to, in response to a magnetic field generated by the magnet, control electric power supply to the sterilizer

Methodology Applied
Scientific EffectMagnetic field: Magnetic Field

Implementation Method 2

The sterilizer is configured to emit ultraviolet rays

Methodology Applied
Scientific EffectUltraviolet radiation: Ultrasonic Vibration

Data Source

PatentUS11040894B2Water purifier
Publication Date: 2021.06.22 LG ELECTRONICS INC
  • US11040894B2 patent drawing
  • US11040894B2 patent drawing
  • US11040894B2 patent drawing

AI summary

A water purifier that includes: a water storage tank that includes an interior area and a first opening to the interior area; a cover unit that is configured to cover the first opening and that includes: a frame body that includes a second opening, and a water storage tank cover that is coupled to the frame body and that is configured to rotate about an axis such that the water storage tank cover opens or closes the second opening; a sterilizer that is configured to sterilize water in the water storage tank; a switching module that is configured to control electric power supply to the sterilizer; and an operation member that is configured to control the switching module based on the water storage tank cover being opened or closed is disclosed.