Heating device for a kettle

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Solution Overview

Problem

Current electric kettle heating bases lack safety due to potential scalding from accidental contact with heated walls, suffer from high energy consumption due to lack of thermal insulation, and are prone to kettle movement and slipping.

Innovation Solution

A heating device with a housing cavity in the enclosure to securely hold the kettle, featuring a radiator fan, core PCB, wire coil, temperature sensor, and silicone/rubber cushions for insulation and stability, along with a control button and temperature fuse for safety, which reduces energy consumption and prevents kettle movement.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If the kettle is placed directly on the heating base, then heating is simple and direct, but the user is prone to be scalded due to accidental contact of the heated wall

Engineering Contradiction:
Improveheating simplicityVSAvoidscalding risk
Core Design Contradiction:
Ease of manufactureVSObject-affected harmful factors

Solution Approach 1:

The patent introduces an intermediary heating platform with housing cavity between the heating base and the kettle. This platform acts as a mediator that contains the heated wall within its structure, allowing heat transfer to the kettle while preventing direct contact between the user and the heated surface, thus resolving the scalding risk while maintaining heating effectiveness

Inventive Principle:
Principle #24Intermediary (Mediator)

2Device complexity

If no thermal insulation device is provided, then the structure is simple, but the hot water in the kettle may become cool soon after heating and re-heating is required, thus energy consumption is high

Engineering Contradiction:
Improvestructure simplicityVSAvoidenergy consumption
Core Design Contradiction:
Device complexityVSUse of energy by moving object

Solution Approach 1:

The patent implements nesting by placing the kettle inside the heating platform's housing cavity, which is itself nested within the enclosure. This nested structure allows the housing cavity walls to provide thermal insulation around the kettle, keeping hot water warm longer and reducing re-heating requirements, thus lowering energy consumption while maintaining reasonable structural complexity

Inventive Principle:
Principle #7Nested doll (Nesting)

3Ease of operation

If the kettle is placed on a flat heating base, then placement is easy, but the kettle is prone to move left and right and even slip from the heating base

Engineering Contradiction:
Improveplacement easeVSAvoidkettle stability
Core Design Contradiction:
Ease of operationVSStability of the object's composition

Solution Approach 1:

The patent applies local quality by providing specific structural features (housing cavity with walls and positioning posts) at the interface between the heating platform and the kettle. These localized structural elements provide friction and mechanical restraint to prevent kettle movement and slipping, while the overall flat surface maintains ease of placement

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 enhances safety by preventing scalding, reduces energy consumption through thermal insulation, and stabilizes the kettle, preventing movement and slipping, while allowing for efficient heating of various liquids.

Implementation Method 1

a wire coil which is provided with a heat coil is installed on the rack

Methodology Applied
Scientific EffectJoule heating: Joule Heating

Implementation Method 2

the radiator fan is mounted at the bottom of the enclosure

Methodology Applied
Scientific EffectForced convection: Forced Convection

Implementation Method 3

several silicone cushions for supporting the kettle are configured at the bottom of the housing cavity... several rubber cushions are configured at the bottom of the enclosure

Methodology Applied
Scientific EffectThermal insulation: Thermal Insulation

Implementation Method 4

the temperature sensor sheathed with a spring which is in the through hole of the connection post passes through the connection post

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentUS9706871B2Heating device for a kettle
Publication Date: 2017.07.18 STUDIO CQ GUANGZHOU
  • US9706871B2 patent drawing
  • US9706871B2 patent drawing
  • US9706871B2 patent drawing

AI summary

The present invention discloses a heating device for a kettle, comprising an enclosure, a radiator fan, a rack, a core PCB, a wire coil, and a temperature sensor in the enclosure. A heating platform which has a housing cavity is arranged on the upper part of the enclosure. The radiator fan is mounted at the bottom of the enclosure. The rack is fixed inside the enclosure. The core PCB is configured in the lower part of the rack and above the radiator fan. The wire coil which is provided with a heat coil is installed on the rack, and the temperature sensor is electrically connected with the core PCB.