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

High-frequency heating apparatus, state detecting apparatus and method for detecting operating state of high-frequency heating apparatus

A state detection device and technology of operation state, applied in lighting and heating equipment, electric heating device, microwave heating and other directions, can solve the problems of increasing device cost and total number of assembly processes, and achieve the effect of preventing false detection

Active Publication Date: 2010-10-06
PANASONIC CORP
View PDF3 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] According to the method of Patent Document 1, there is a problem that since the fastening process using screws to the heat sink is required, the total number of assembly processes increases, and thus the cost of the device increases

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
  • High-frequency heating apparatus, state detecting apparatus and method for detecting operating state of high-frequency heating apparatus
  • High-frequency heating apparatus, state detecting apparatus and method for detecting operating state of high-frequency heating apparatus
  • High-frequency heating apparatus, state detecting apparatus and method for detecting operating state of high-frequency heating apparatus

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0086] figure 1 is a diagram showing a high-frequency heating device such as a microwave oven according to an embodiment of the present invention, and specifically showing a configuration of a portion related to detection of an operating state of the high-frequency heating device. exist figure 1 In this, AC power from a commercial power supply is rectified into DC current by a rectifier circuit, then smoothed by a smoothing circuit configured on the output side of the rectifier circuit and a smoothing capacitor of a choke coil, and applied to the input side of the inverter. The DC current is converted into a desired high-frequency (20 to 40 kHz) current by the on / off operation of the semiconductor switching elements of the inverter. The inverter is driven by an inverter control circuit for controlling a semiconductor switching element that switches DC current at high speed, thereby switching the current flowing into the primary side of the step-up transformer into an on / off s...

no. 2 example

[0119] Next, a second embodiment according to the present invention will be described in detail with reference to the drawings.

[0120] Figure 4 is a diagram showing a high-frequency heating device 100 (such as a microwave oven) according to this embodiment of the present invention, and specifically showing the configuration of a portion related to the detection of the operating state of the high-frequency heating device. exist Figure 4 In this, AC power from a commercial power supply is rectified into DC current by a rectifier circuit, then smoothed by a smoothing circuit configured on the output side of the rectifier circuit and a smoothing capacitor of a choke coil, and applied to the input side of the inverter. The DC current is converted into a desired high-frequency (20 to 40 kHz) current by the on / off operation of the semiconductor switching elements of the inverter. The inverter is driven by an inverter control circuit for controlling a semiconductor switching ele...

no. 3 example

[0166] According to the second embodiment, the corresponding value of the anode current is detected during a period of one rotation of the radio wave agitating member as the rotating member. According to the present embodiment, regardless of a specific time period of one rotation of the radio wave agitating member, in the case of using (1) threshold value control or (2) change value detection control, the threshold value of (1) or (2) is controlled according to the high frequency The output of the heating device (output control signal) changes. In other words, each threshold can be changed according to an arbitrary time and an arbitrary number of detections. In this case, as in the foregoing embodiment, the foregoing three methods (A) to (C) can be used.

[0167] That is, in this embodiment, in the second embodiment refer to Image 6 with 7 Each of the illustrated calculation of the IaDC value at each segment and the detection of the rotation of the rotating antenna 68, 69 ...

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 application provides a high frequency heating equipment and a method for detecting the status detecting apparatus of the operational state. The status detecting apparatus includes a movement position determining part, which determines the movement position of the radio wave agitation component, the radio wave agitation component periodically operating to relatively agitate the microwave produced by the magnetrons relative to the object to be heated; an anode current input part, which determines one cycle of the cyclical movement of the radio wave agitation component based on the movement position information determined by the movement position determining part, and then corresponding values corresponding to the anode current input from the anode current input part is read multiple times during one cycle, and the operational state of the high frequency heating equipment is determined based on a plurality of corresponding values during one cycle. The operating state detecting apparatus and method can accurately detect an abnormality of a high-frequency heating apparatus without faulty operations.

Description

[0001] This application is a divisional application of the invention patent application with the application number 200680053430.3, the application date is December 26, 2006, and the invention title is "state detection device for detecting the operating state of high-frequency assumption equipment". technical field [0002] The present invention relates to a technique for high-frequency heating in equipment using a magnetron, such as a microwave oven, and in particular, to a state detection device for detecting an operating state of the high-frequency heating equipment. Background technique [0003] Figure 13 is a diagram showing the configuration of a microwave oven as an example of a high-frequency heating device. In this figure, AC power from a commercial power source 11 is rectified into a DC current by a rectification circuit 13, then smoothed by an output side of the rectification circuit 13 and a smoothing capacitor 15 of a choke coil 14, and applied to an inverter 16...

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
IPC IPC(8): H05B6/68F24C7/02
CPCH05B6/666H05B2206/043
Inventor 守屋英明城川信夫末永治雄酒井伸一木下学
Owner PANASONIC CORP
Features
  • Generate Ideas
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com