Connection structure and input/output connection structure of semiconductor microwave generator for microwave oven, and microwave oven

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Solution Overview

Problem

The existing connection structure of semiconductor microwave generators in microwave ovens results in a large distance between the generator and the cooking cavity, increasing the size and manufacturing costs of the oven, while also leading to transmission losses and inefficient heating.

Innovation Solution

A compact connection structure featuring radio-frequency connectors and a microwave feed-in device, such as an antenna or probe, that reduces the distance between the semiconductor microwave generator and the cooking cavity, ensuring efficient microwave conduction and heating.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the radio-frequency connector is connected to the side face of the semiconductor microwave generator, then the microwave transmission can be achieved, but the distance between the generator and cooking cavity becomes large, increasing the size of the microwave oven

Engineering Contradiction:
Improvemicrowave transmissionVSAvoidsize of microwave oven
Core Design Contradiction:
ReliabilityVSVolume of moving object

Solution Approach 1:

The patent changes the connection orientation from side-face (horizontal dimension) to top-face (vertical dimension), allowing the microwave output device to extend downward directly into the cooking cavity, thereby reducing the horizontal distance and overall footprint of the microwave oven while maintaining transmission reliability

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Reliability

If the distance between the semiconductor microwave generator and the cooking cavity is large, then the microwave transmission path is established, but the transmission loss increases and heating efficiency decreases

Engineering Contradiction:
Improvemicrowave transmission pathVSAvoidtransmission loss
Core Design Contradiction:
ReliabilityVSLoss of energy

Solution Approach 1:

The patent extracts the microwave output device from the traditional side-face connection and positions it to extend directly downward from the top face, shortening the transmission path and reducing the distance microwave signals must travel through air, thereby minimizing transmission loss and improving heating efficiency

Inventive Principle:
Principle #2Taking out (Extraction)

3Reliability

If the distance between the semiconductor microwave generator and the cooking cavity is large, then the microwave transmission can be achieved, but the manufacturing costs increase

Engineering Contradiction:
Improvemicrowave transmissionVSAvoidmanufacturing costs
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The patent repositions the microwave output device connection from the side face to the top face, allowing for a more compact overall design that reduces the required internal volume of the microwave oven, thereby lowering material costs and simplifying the manufacturing process

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

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 effectively reduces the size and manufacturing costs of microwave ovens while ensuring sufficient and efficient heating of food within predetermined times, improving product quality and efficiency.

Implementation Method 1

The microwave oven is a common appliance for heating or cooking, with the principle of causing high-frequency oscillation of water molecules of food by using microwaves, thereby generating heat by friction to heat or cook the food

Methodology Applied
Scientific EffectDielectric heating: Dielectric Heating

Implementation Method 2

causing high-frequency oscillation of water molecules of food by using microwaves, thereby generating heat by friction to heat or cook the food

Methodology Applied
Scientific EffectFriction heating: Friction

Implementation Method 3

the microwave signals led out by the radio-frequency connector 20' from the semiconductor microwave generator 10' need to be transferred to a microwave feed-in device by way of direct connection, cable connection or the like, and finally input into a waveguide box

Methodology Applied
Scientific EffectElectromagnetic wave transmission: Electromagnetic Induction

Data Source

PatentEP3121519B1Connection structure and input/output connection structure of semiconductor microwave generator for microwave oven, and microwave oven
Publication Date: 2021.12.29 GUANGDONG MIDEA KITCHEN APPLIANCES MFG CO LTD
  • EP3121519B1 patent drawingFigure 1~2A
  • EP3121519B1 patent drawingFigure 2B~3
  • EP3121519B1 patent drawingFigure 4~6

AI summary

The invention provides a connection structure and input/output connection structure of a semiconductor microwave generator for a microwave oven, and a microwave oven. The connection structure of the semiconductor microwave generator for the microwave oven comprises: a semiconductor microwave generator and a microwave output device; a microwave signal output port is provided on a front face or a back face of the semiconductor microwave generator; a first end of the microwave output device is connected to the microwave signal output port, and a second end of the microwave output device communicates with a cooking cavity of the microwave oven. According to the connection structure of the semiconductor microwave generator for the microwave oven provided by the present invention, the connection between the microwave output device and the front face or the back face of the semiconductor microwave generator effectively reduces the maximum distance between the semiconductor microwave generator and the cooking cavity, and further effectively reduces the size of the microwave oven, providing simple and convenient structural design and shape design of the microwave oven, thus effectively reducing the manufacturing costs of the microwave oven.