CN102820195A - Antenna seal cap of magnetron - Google Patents
Antenna seal cap of magnetron Download PDFInfo
- Publication number
- CN102820195A CN102820195A CN2011101501047A CN201110150104A CN102820195A CN 102820195 A CN102820195 A CN 102820195A CN 2011101501047 A CN2011101501047 A CN 2011101501047A CN 201110150104 A CN201110150104 A CN 201110150104A CN 102820195 A CN102820195 A CN 102820195A
- Authority
- CN
- China
- Prior art keywords
- antenna
- seal cap
- magnetron
- wall
- seal cover
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 238000005452 bending Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 10
- 230000009471 action Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 239000002784 hot electron Substances 0.000 description 5
- 238000001816 cooling Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000004907 flux Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- ZSLUVFAKFWKJRC-IGMARMGPSA-N 232Th Chemical compound [232Th] ZSLUVFAKFWKJRC-IGMARMGPSA-N 0.000 description 1
- 229910052776 Thorium Inorganic materials 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000004224 protection Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000007363 ring formation reaction Methods 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Landscapes
- Microwave Tubes (AREA)
Abstract
Disclosed is an antenna seal cap of a magnetron. The antenna seal cap is defined by a seal cap wall and arranged on the upper portion of an anode casing of the magnetron, an upper sealing chamber is formed in the seal cap wall, an antenna outlet is arranged on the upper portion of the antenna seal cap, the seal cap wall at the upper end of the antenna seal cap uniformly bends toward the periphery of the antenna seal cap to form an outer seal cap wall, the antenna outlet is formed at the junction position of the seal cap wall and the outer seal cap wall, and the outer seal cap wall extends outwards to form a ring-shaped gasket ring. The gasket ring shields a gap at the position of a through hole in the middle of an upper casing, and the shielding portion of the gasket ring is capable of effectively preventing microwaves from leaking during the working of the magnetron; and the gasket ring and the antenna seal cap are formed in an integrated mode so that no gaps are formed between the gasket ring and the antenna seal cap, the leakage of the microwaves between the gasket ring and the antenna seal cap is avoided, the magnetron is more reliable, and negative influences of high frequency harmonic waves on surrounding human bodies and electrical elements are reduced during the working of the magnetron.
Description
Technical field
The invention belongs to the technical field of magnetron, be specifically related to a kind of gasket rings, thereby prevent microwave leakage, simplify technological process, reduce the antenna seal cover of the magnetron of production cost with integrative-structure.
Background technology
Fig. 1 is the magnetron structures longitudinal section of prior art; Fig. 2 is the structural representation of magnetron antenna seal cover in the prior art; Fig. 3 is the structural representation of prior art middle washer ring; Fig. 4 is the cutaway view of prior art middle washer ring; Fig. 5 is the cutaway view of magnetron antenna seal cover and gasket rings combination in the prior art.
To shown in Figure 5, magnetron mainly includes: positive electrode portion like Fig. 1; Negative electrode portion; Magnetic pole piece; The microwave emission part.Positive electrode portion is formed with a plurality of radial blades 12 by the anodal shell 11 of drum shape on the inwall of anodal shell 11, welding inner and outer ring formation in the lower groove on the blade.
Negative electrode portion is included on the central shaft by form spiral-shaped of W (tungsten) and TH (thorium) element and can radiates thermionic filament 13; Between the end of blade 12 and filament 13, form the action space 14 that makes the hot electron rotation; In order to prevent to break away from from the central shaft above-below direction, form upper seal 15 and lower seal 16 in the top and bottom of filament 13 from the hot electron that filament 13 radiation are come out; For filament supports 13 and introduce power supply, designed the filament central authorities guide rod 17 that connects lower seal 16 and connect upper seal 15 and introduced power supply with central guide rod 17 and be connected the side guide rod 18 of lower seal 16.
Magnetic pole piece comprises the top and bottom that are fixed on anodal shell 11 and can form the last magnetic pole 20 of magnetic flux, lower magnetic pole 21; To form magnetic field in order making on the action space 14, magnet 22 to be installed in the upper end of last magnetic pole 20 and the lower end of lower magnetic pole 21.
In addition, connect ceramic component 31 and connect filament central authorities guide rod 17 1 ends and guide rod 18 1 ends in side carry out the filter coil 32 of filter function in addition; Connect filter coil 32, and the capacitor 33 of power supply is introduced in cross-over connection in both ends of power from the outside; The top seal chamber 41 and lower seal chamber 42 of flux interaction carried out in the bottom that is formed on top and the lower magnetic pole 21 of magnetic pole 20; For the high frequency waves in 14 li generations of action space are transmitted into the outside, are provided with and are connected the antenna 51 that blade 12 and the last magnetic pole 20 of perforation and top seal chamber 41 central authorities extract; To produce and pass through the heat that blade 12 transmits for 14 li in order cooling off, to be provided with cooling fin 61 at action space; Go back the parts such as shell 19 that 61 protections of handlebar cooling fin shed at heat inner and that cooling fin 61 is transmitted in addition.
Blast pipe 60 shown in the figure is after the magnetron assembling, when carrying out deairing step in order to become magnetron the part that vacuum state cuts off.
Aforesaid magnetron working condition is described below.When magnetic pole 20 forms magnetic flux with lower magnetic pole 21 on the magnetic field that magnet 22 produces is passed through, between blade 12 and filament 13, form magnetic field.When switching on through capacitor 33, filament 13 is approximately radiating hot electron under the 2000K temperature, and hot electron is rotated to 4.4KV and the action space 14 under the effect in the magnetic field that magnet 22 produces at 4.0 KV between filament 13 and the positive electrode portion.
Like this; Passing through central guide rod 17 and side guide rod 18 in filament 13 energisings; At the electric field that produces between blade 12 and the filament 13 about 2450MHZ; Make hot electron in action space 14, become harmonic wave under the effect through electric field and magnetic field, and the antenna 51 that makes harmonic wave be delivered to connection blade 12 is transmitted into the outside.
The basic wave that not only is useful on the cooking (2450MHZ) in the action space generation; Also have the high-frequency harmonic of basic wave frequency integral multiple, mainly comprise second high-frequency harmonic (4900MHZ), the 3rd high-frequency harmonic (7350MHZ), the 4th high-frequency harmonic (9.8GHZ), the 5th high-frequency harmonic (12.5GHZ) etc.Basic wave is used for the heating of the article in the microwave oven, and the integral multiple high-frequency harmonic causes strong electromagnetic interference to electric elements on every side easily, and harmful, therefore must reduce high-frequency harmonic as far as possible and from magnetron, leak.
The antenna seal cover 100 of magnetron in the prior art is formed by cover wall 102 encirclements, is arranged at the anodal shell upper of magnetron, and in the inner top seal chamber that forms of cover wall, antenna outlet 104 is set on antenna seal cover top, and antenna passes from the antenna outlet.And the upper end of antenna seal cover passes from the upper casing of shell.For avoiding the slot leakage of microwave from combination between antenna seal cover and the upper casing; Upper end at antenna seal cover needs a nested gasket rings 101; Gasket rings 101 should fit tightly with the cover wall of antenna seal cover 100 upper ends; And extending to the antenna seal cover lateral direction the shield portions of ring-type, and gasket rings upwards passes from enclosure when mounted, and the shield portions 103 of gasket rings bottom is stayed in the shell; And gasket rings top passes the through hole in the middle of the upper casing 19a, and the shield portions through gasket rings 101 prevents that microwave from leaking from the upper casing intermediate throughholes.
But must closely cooperate between the magnetron antenna seal cover of prior art and the gasket rings, therefore having relatively high expectations to processing technology.If the size mismate of antenna seal cover and gasket rings will be reserved the space between antenna seal cover and gasket rings, the microwave in the magnetron will leak from above-mentioned space, and the electric elements around human body and the microwave oven are had a negative impact.In addition, antenna seal cover and gasket rings are two parts, and the technological process during production and processing is more, cause production efficiency to descend.
Summary of the invention
The present invention provides a kind of gasket rings with integrative-structure for solving the technical problem that exists in the prior art, thereby prevents microwave leakage, simplifies technological process, reduces the antenna seal cover of the magnetron of production cost.
The technical scheme that the present invention takes for the technical problem that exists in the solution prior art is:
The antenna seal cover of magnetron of the present invention; Form by the cover wall encirclement, be arranged at the anodal shell upper of magnetron, and in the inner top seal chamber that forms of cover wall; The antenna outlet is set on antenna seal cover top; The cover wall of antenna seal cover upper end evenly is bent to form the covering tegmental wall to the peripheral direction of antenna seal cover, and forms the antenna outlet in cover wall and covering tegmental wall junction, and the covering tegmental wall outwards extends and forms the gasket rings of ring-type.
The present invention can also adopt following technical measures:
The cover wall of described antenna seal cover upper end is shunk to the inside, and the diameter of antenna seal cover upper end is less than lower end diameter.
The cover wall of described antenna seal cover upper end bends 180 ° laterally and forms the covering tegmental wall, and evenly extending laterally after the extension downwards of covering tegmental wall also bends 90 ° once more laterally forms gasket rings.
Described covering tegmental wall extends to the position outwards bending once more that cover wall is inwardly shunk.
Described covering tegmental wall is close to cover wall to extending below.
Advantage and good effect that the present invention has are:
In the antenna seal cover of magnetron of the present invention; The cover wall of antenna seal cover upper end outwards is bent to form the covering tegmental wall; Simultaneously the covering tegmental wall extend downwards and once more outside antenna seal cover lateral buckling extend to form gasket rings; Gasket rings shelters from the space at upper casing intermediate throughholes place, and the shield portions of gasket rings can effectively prevent the leakage of microwave when magnetron is worked, because gasket rings and antenna seal cover are made of one piece; There is not the slit between gasket rings and the antenna seal cover; So avoided the possibility of microwave leakage between gasket rings and the antenna seal cover, make magnetron more reliable,, magnetron reduced high-frequency harmonic when working to the adverse effect of human body and electric elements on every side.On the other hand, gasket rings and antenna seal cover time processing form, and have reduced by parts, have simplified production process, thereby have improved production efficiency, have also reduced production cost.
Description of drawings
Fig. 1 is the magnetron structures longitudinal section of prior art;
Fig. 2 is the structural representation of magnetron antenna seal cover in the prior art;
Fig. 3 is the structural representation of prior art middle washer ring;
Fig. 4 is the cutaway view of prior art middle washer ring;
Fig. 5 is the cutaway view of magnetron antenna seal cover and gasket rings combination in the prior art;
Fig. 6 is the structural representation of magnetron antenna seal cover among the present invention;
Fig. 7 is the cutaway view of magnetron antenna seal cover among the present invention.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is carried out detailed explanation.
Fig. 6 is the structural representation of magnetron antenna seal cover among the present invention; Fig. 7 is the cutaway view of magnetron antenna seal cover among the present invention.
Like Fig. 6 and shown in Figure 7, the antenna seal cover 100 of magnetron of the present invention is formed by cover wall 102 encirclements; Be arranged at the anodal shell upper of magnetron; And, antenna outlet 104 being set on antenna seal cover 100 tops in the inner top seal chamber that forms of cover wall, the cover wall 102 of antenna seal cover 100 upper ends evenly is bent to form covering tegmental wall 105 to the peripheral direction of antenna seal cover; And in cover wall and covering tegmental wall junction formation antenna outlet 104; The covering tegmental wall outwards extends and forms the gasket rings 101 of ring-type, and the through-hole diameter in the middle of the upper casing of the peripheral diameter of gasket rings magnetron shell during greater than combination is to accomplish blocking space between through hole and the antenna seal cover.
The cover wall 102 of antenna seal cover 100 upper ends is shunk to the inside, and the diameter of antenna seal cover upper end is less than lower end diameter, thus the leakage of minimizing high-frequency harmonic.
The cover wall 102 of antenna seal cover 100 upper ends bends 180 ° laterally and forms covering tegmental wall 105; Evenly extend laterally after the extension downwards of covering tegmental wall also bends 90 ° once more laterally and form gasket rings; The part that outwards extends is as the shield portions 103 of gasket rings; Plane, gasket rings place is vertical with the axial direction of antenna seal cover, thereby makes the antenna seal cover inboard tight attaching of gasket rings and shell upper casing when mounted.
Covering tegmental wall 105 extends to the position outwards bending once more that cover wall is inwardly shunk, and covering tegmental wall outer circumference diameter can pass the antenna seal cover upper end less than the diameter of upper casing intermediate throughholes from above-mentioned through hole.
Covering tegmental wall 105 is close to cover wall 102 to extending below, thereby makes the structure of antenna seal cover more compact, is convenient to the aggregate erection between antenna seal cover and the upper casing.
In the antenna seal cover of magnetron of the present invention; The cover wall of antenna seal cover upper end outwards is bent to form the covering tegmental wall; Simultaneously the covering tegmental wall extend downwards and once more outside antenna seal cover lateral buckling extend to form gasket rings; Gasket rings shelters from the space at upper casing intermediate throughholes place, and the shield portions of gasket rings can effectively prevent the leakage of microwave when magnetron is worked, because gasket rings and antenna seal cover are made of one piece; There is not the slit between gasket rings and the antenna seal cover; So avoided the possibility of microwave leakage between gasket rings and the antenna seal cover, make magnetron more reliable,, magnetron reduced high-frequency harmonic when working to the adverse effect of human body and electric elements on every side.On the other hand, gasket rings and antenna seal cover time processing form, and have reduced by parts, have simplified production process, thereby have improved production efficiency, have also reduced production cost.
The above only is preferred embodiment of the present invention, is not the present invention is done any pro forma restriction; Though the present invention is with preferred embodiment openly as above, yet, be not in order to limit the present invention; Anyly be familiar with the professional and technical personnel, in not breaking away from technical scheme scope of the present invention, can utilize the technology contents of announcement to make a little change or modification certainly; Become the equivalent embodiment of equivalent variations; In every case be the content that does not break away from technical scheme of the present invention, to any simple modification, equivalent variations and modification that above embodiment did, all belong in the scope of technical scheme of the present invention according to technical spirit of the present invention.
Claims (5)
1. the antenna seal cover of a magnetron; Form by the cover wall encirclement, be arranged at the anodal shell upper of magnetron, and in the inner top seal chamber that forms of cover wall; The antenna outlet is set on antenna seal cover top; It is characterized in that: the cover wall of antenna seal cover upper end evenly is bent to form the covering tegmental wall to the peripheral direction of antenna seal cover, and forms the antenna outlet in cover wall and covering tegmental wall junction, and the covering tegmental wall outwards extends and forms the gasket rings of ring-type.
2. the antenna seal cover of magnetron according to claim 1 is characterized in that: the cover wall of antenna seal cover upper end is shunk to the inside, and the diameter of antenna seal cover upper end is less than lower end diameter.
3. the antenna seal cover of magnetron according to claim 2; It is characterized in that: the cover wall of antenna seal cover upper end bends 180 ° laterally and forms the covering tegmental wall, and evenly extending laterally after the extension downwards of covering tegmental wall also bends 90 ° once more laterally forms gasket rings.
4. the antenna seal cover of magnetron according to claim 3 is characterized in that: the covering tegmental wall extends to the position outwards bending once more that cover wall is inwardly shunk.
5. the antenna seal cover of magnetron according to claim 3, it is characterized in that: the covering tegmental wall is close to cover wall to extending below.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110150104.7A CN102820195B (en) | 2011-06-07 | 2011-06-07 | The antenna seal cover of magnetron |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110150104.7A CN102820195B (en) | 2011-06-07 | 2011-06-07 | The antenna seal cover of magnetron |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102820195A true CN102820195A (en) | 2012-12-12 |
| CN102820195B CN102820195B (en) | 2016-06-29 |
Family
ID=47304246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110150104.7A Expired - Fee Related CN102820195B (en) | 2011-06-07 | 2011-06-07 | The antenna seal cover of magnetron |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102820195B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1988105A (en) * | 2005-12-21 | 2007-06-27 | Lg电子株式会社 | Magnetron |
| CN101146381A (en) * | 2006-09-15 | 2008-03-19 | 乐金电子(天津)电器有限公司 | Copper gasket structure for microwave oven magnetic control tube |
| CN101640156A (en) * | 2008-08-01 | 2010-02-03 | 乐金电子(天津)电器有限公司 | Choke structure of magnetron |
-
2011
- 2011-06-07 CN CN201110150104.7A patent/CN102820195B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1988105A (en) * | 2005-12-21 | 2007-06-27 | Lg电子株式会社 | Magnetron |
| CN101146381A (en) * | 2006-09-15 | 2008-03-19 | 乐金电子(天津)电器有限公司 | Copper gasket structure for microwave oven magnetic control tube |
| CN101640156A (en) * | 2008-08-01 | 2010-02-03 | 乐金电子(天津)电器有限公司 | Choke structure of magnetron |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102820195B (en) | 2016-06-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102237240A (en) | Filtering structure of magnetron | |
| EP1801839B1 (en) | Magnetron | |
| US4720659A (en) | Magnetron | |
| CN101640156A (en) | Choke structure of magnetron | |
| CN102820195A (en) | Antenna seal cap of magnetron | |
| CN102238765A (en) | Antenna cap of magnetron | |
| JP5425577B2 (en) | Microwave oven and magnetron for microwave oven | |
| CN104253005B (en) | The blast pipe of magnetron for microwave oven | |
| CN102820194A (en) | Cathode ceramic structure of magnetron | |
| CN104253009A (en) | Antenna fixing structure of magnetron for microwave oven | |
| CN102237237A (en) | Negative part structure of magnetron | |
| CN102820193B (en) | The negative pole part structure of magnetron | |
| CN102243971A (en) | Cathode wire structure for magnetron | |
| CN102237241A (en) | Negative seal cover of magnetron | |
| CN102237238A (en) | Cathode lead structure of magnetron | |
| CN103311074A (en) | Upper magnetic pole structure of magnetron | |
| KR200150804Y1 (en) | Magnetron | |
| WO2022024692A1 (en) | Magnetron | |
| CN102237239A (en) | Choking structure of magnetron | |
| KR19980010158U (en) | magnetron | |
| US10366857B2 (en) | Magnetron for microwave oven | |
| CN101206985A (en) | Leakage-proof filter of permatron | |
| KR100237694B1 (en) | Magnetron | |
| KR100251565B1 (en) | Magnetron | |
| KR100783408B1 (en) | Choke filter of magnetron |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160629 |