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

Magnetron

A technology of magnetron and coupling ring, which is applied in the field of magnetron and can solve problems such as noise generation

Inactive Publication Date: 2004-02-25
PANASONIC CORP
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0022] In order to solve this noise generation problem, the inventors of the present invention gained new insight because the inventors precisely analyzed the dimensions of the flat portion of the magnetic part on the output side, and the relationship between the dimensions of these anode fins and the corresponding coupling rings. Correlation between

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
  • Magnetron
  • Magnetron
  • Magnetron

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0051] A magnetron according to an embodiment of the present invention will now be explained in detail with reference to the accompanying drawings.

[0052] figure 1 Shown is a cross-sectional view of a magnetron 41 according to an embodiment of the present invention.

[0053] The magnetron 41 of the present embodiment is constructed as follows: Figure 11 The input side magnetic part 7 of the conventional magnetron 1 shown in is replaced by the input side magnetic part 43; its output side magnetic part 13 is replaced by the output side magnetic part 45; its anode fin 20 is replaced by the anode fin 47; replaces its small diameter coupling ring 22 with small diameter coupling ring 49; and replaces large diameter coupling ring 24 with large diameter coupling ring 51. Other structures of this magnetron 41 are likewise used as those of the conventional magnetron 1 . It should be noted that in Figure 11 The same reference numerals shown in are used to designate the reference n...

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

In such a case that a radial dimension of an outer circumference of a small-diameter strap ring of a magnetron is equal to 'Rs1', a radial dimension of an inner circumference of a large-diameter strap ring is equal to 'Rs2', a radius of a circumference which is inscribed to tip portions of anode vanes is equal to 'Ra', and a radius of a central flat portion of a magnetic piece, which is located in the vicinity of each of the anode vanes, is equal to 'Rp', the respective values of Ra, Rs1, Rs2, Rp are set in such a manner that the below-mentioned formulae (1) and (2) can be established: 1.85Ra<=(Rs1+Rs2) / 2<=1.96Ra...(1) Rs1 H01J 23 / 00 H01J 25 / 50 8 10 1 2003 / 7 / 18 1477673 2004 / 2 / 25 1329941 2007 / 8 / 1 2007 / 8 / 1 2007 / 8 / 1 Matsushita Electric Industrial Co., Ltd. Japan Yoshihara Shokun Tsukata Toshiyuki Okuri Hideki ge jing li xiaoshu 11105 Japan 2002 / 7 / 18 209773 / 02 Japan 2003 / 4 / 15 110390 / 03

Description

technical field [0001] The present invention relates to a magnetron used in high-frequency heating appliances, such as microwave ovens and the like. Background technique [0002] Figure 11 Shown is an example of a conventional magnetron 1 assembled in a microwave oven or the like. [0003] Such a magnetron 1 includes a cathode 3 whose central axis is in the up / down direction, an anode tubular body 5 coaxially surrounding this cathode 3 , an input-side magnetic member 7 , a cathode-end conductive column 31 , and an output-side magnetic member 13 , the second metal cylinder 15 and the microwave radiation antenna 19 . The input-side magnetic member 7 is provided at the lower open end of the anode tubular body 5 . The cathode terminal conductive column 31 is formed such that this cathode terminal conductive column 31 protrudes from the first metal cylinder 9 covering the input side magnetic member 7 . The output-side magnetic member 13 is provided at the upper open end of th...

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): H01J23/20H01J23/00H01J23/15H01J23/22H01J25/00H01J25/50H01J25/587H05B6/00H05B6/64
CPCH01J23/20H01J23/22H01J25/587H01J23/15
Inventor 吉原正训塚田敏行大栗英树齐藤悦扶石井健
Owner PANASONIC CORP