Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Electromagnetic heating system and protection device and method thereof

A heating system and protection device technology, applied in the direction of induction heating, induction heating control, etc., can solve the problems of electromagnetic heating system pulse signal mis-opening, over-temperature breakdown, linear increase of switch tube current, etc., to prevent over-temperature or over-heating Flow breakdown phenomenon, improved protection mechanism, fast response effect

Active Publication Date: 2018-05-25
FOSHAN SHUNDE MIDEA ELECTRICAL HEATING APPLIANCES MFG CO LTD
View PDF9 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the disadvantage of the related technology is that in the actual use process, the switch tube is in the normally open state due to the pulse signal falsely turned on in the electromagnetic heating system or the failure of the drive circuit, which causes the current of the switch tube to increase linearly, and even causes the switch tube to fail. Over-current or over-temperature breakdown

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
  • Electromagnetic heating system and protection device and method thereof
  • Electromagnetic heating system and protection device and method thereof
  • Electromagnetic heating system and protection device and method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0043] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0044] The electromagnetic heating system and its protection device and protection method proposed by the embodiments of the present invention are described below with reference to the accompanying drawings.

[0045] figure 1 is a schematic block diagram of a protection device for an electromagnetic heating system according to an embodiment of the present invention. Such as figure 1 As shown, the protection device of the electromagnetic heating system includes: a resonance unit 10 , a drive unit 20 , a control chip 30 , a curre...

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

The invention discloses an electromagnetic heating system and a protection device and method thereof. The device comprise a resonance unit, a driving unit, a control chip, a current detection unit anda power control unit; the resonance unit comprises a heating coil, a resonant capacitor and a switch tube; the output end of the driving unit is connected with the control end of the switch tub e todrive the switch tube; the control chip is used to output a PPG signal to the driving unit so that the driving unit controls ON / OFF of the switch tube; the current detection unit detects the current of the resonant unit, and generates a protection signal when the current of the resonant unit is greater than a preset current threshold; and power control unit controls a first preset power supply tostop supplying power to the driving unit when receiving the protection signal so that the switch tube is turned off. The protection device of the invention monitors the current through the switch tube, a power supply is stopped supplying power to the driving unit when the electromagnetic heating system has a fault, the switch tube is avoided from overtemperature or overcurrent breakdown due to thecircuit fault, and a protection mechanism is improved.

Description

technical field [0001] The invention relates to the technical field of household appliances, in particular to a protection device for an electromagnetic heating system, an electromagnetic heating system and a protection method for the electromagnetic heating system. Background technique [0002] In related technologies, the control chip of the electromagnetic heating system adjusts the width of the output pulse according to the target power, and the output pulse signal passes through the driving circuit to control the switching on and off of the switching tube, so as to control the heating work of the electromagnetic heating system. However, the disadvantage of the related technology is that in the actual use process, the switch tube is in the normally open state due to the pulse signal falsely turned on in the electromagnetic heating system or the failure of the drive circuit, which causes the current of the switch tube to increase linearly, and even causes the switch tube t...

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 Applications(China)
IPC IPC(8): H05B6/06
CPCH05B6/06
Inventor 宣龙健汪钊卢伟杰周升杜放
Owner FOSHAN SHUNDE MIDEA ELECTRICAL HEATING APPLIANCES MFG CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com