Unlock instant, AI-driven research and patent intelligence for your innovation.

Solid state radio frequency generating system and electromagnetic cooking device

A cooking device and generation system technology, applied in the field of RF energy transmission system, can solve the problem of uneven heating of food

Active Publication Date: 2022-06-07
WHIRLPOOL CORP +1
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Cooking food in a closed cavity with a single, incoherent source, such as a magnetron, results in uneven heating of the food

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Solid state radio frequency generating system and electromagnetic cooking device
  • Solid state radio frequency generating system and electromagnetic cooking device
  • Solid state radio frequency generating system and electromagnetic cooking device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0011] It is to be understood that the specific apparatus and processes illustrated in the drawings and described in the following specification are merely exemplary embodiments of the inventive concepts defined in the appended claims. Accordingly, other physical characteristics relating to the embodiments disclosed herein are not to be regarded as limiting unless the claims expressly state otherwise.

[0012] Solid-state radio frequency (RF) cooking appliances heat and cook food by introducing electromagnetic radiation into an enclosed cavity. Multiple RF feeds at different locations in the enclosed cavity generate dynamic electromagnetic wave patterns as they radiate. To control and shape the wave mode in the closed cavity, multiple RF feeds can radiate waves with individually controlled electromagnetic properties to maintain coherence (ie, stationary interference modes) within the closed cavity. For example, each RF feed may transmit a different frequency, phase and / or amp...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

Provided are a solid-state radio frequency generating system for an electromagnetic cooking device and the electromagnetic cooking device. The system includes: a signal generator for generating an input RF signal; an RF feed configured to introduce electromagnetic radiation into the cavity and receive reflected electromagnetic radiation from the cavity; and coupled to the signal High power amplifier between generator and RF feed. The high power amplifier includes: an amplification stage configured to output a power-amplified signal; and a circulator for directing the amplified output signal to an RF feed and for directing any The reflected radiation is redirected to the dummy load. The system also includes a hardware protection component for detecting backward power in the reflected radiation and reducing power provided to the amplifier if the backward power exceeds a power threshold within a time scale to prevent damage to the circulator. level of power.

Description

technical field [0001] The present apparatus relates generally to an RF energy transfer system for an electromagnetic cooking device, and more particularly, to an RF energy transfer system for a solid state RF electromagnetic cooking device that protects a high power amplifier from reflections effects of electromagnetic waves. Background technique [0002] Conventional microwave ovens cook food through a process of dielectric heating, in which high-frequency alternating electromagnetic fields are distributed throughout the enclosed cavity. A sub-band of the radio spectrum, microwave frequencies at or near 2.45 GHz cause dielectric heating primarily by absorbing energy from water. [0003] To generate microwave frequency radiation in conventional microwaves, the voltage applied to the high voltage transformer of the high power amplifier results in high voltage power applied to the magnetron generating microwave frequency radiation. The microwaves are then sent through the w...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H05B6/64H05B6/70
CPCH05B6/681H05B6/70H05B6/705H05B6/72H05B6/686Y02B40/00H03F1/52H05B6/64
Inventor F·布林达尼N·罗姆佩达齐
Owner WHIRLPOOL CORP