CN2812285Y - Magnetron - Google Patents
Magnetron Download PDFInfo
- Publication number
- CN2812285Y CN2812285Y CN 200520061056 CN200520061056U CN2812285Y CN 2812285 Y CN2812285 Y CN 2812285Y CN 200520061056 CN200520061056 CN 200520061056 CN 200520061056 U CN200520061056 U CN 200520061056U CN 2812285 Y CN2812285 Y CN 2812285Y
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- Prior art keywords
- choke
- magnetron
- tube
- shell
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- 239000000919 ceramic Substances 0.000 claims abstract description 19
- 238000003466 welding Methods 0.000 claims abstract description 5
- 239000002184 metal Substances 0.000 claims description 6
- 230000005764 inhibitory process Effects 0.000 claims description 5
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
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Abstract
The utility model relates to a magnetron. Including anode cylinder (1), tube shell (2), ceramic support piece (3), antenna (8), magnetic pole (9), blade (10), filament (11), tube shell (2) welding is at anode cylinder (1), ceramic support piece (3) welding is at tube shell (2), anode cylinder (1) is passed in proper order in antenna (8), tube shell (2), ceramic support piece (3), magnetic pole (9) are installed at the both ends of anode cylinder (1), blade (10) and filament (11) are installed in anode cylinder (1), wherein tube shell (2) is installed in the one end of being connected with ceramic support piece (3) and is restrained the 1/4 wave length formula choke coil that the higher harmonic was exported the magnetron outside. Choke is including first choke (6) and second choke (7), the utility model discloses a set up 1/4 wavelength formula choke's structure at the output of magnetron, according to the transmission line principle, microwave signal transmits in coaxial, and the characteristic impedance apart from short circuit face 1/4 wavelength department is the infinity, and the microwave is the total reflection, so can restrain the higher harmonic and export the magnetron outside.
Description
1, technical field:
The utility model is a kind of magnetron, particularly a kind ofly suppresses the magnetron that high order harmonic component leaks into the microwave oven outside, belongs to the innovative technology of magnetron.
2, background technology:
Have now in the used magnetron of microwave oven,, produce the microwave of 2.45GHZ, except that first-harmonic, produce high order harmonic component composition simultaneously with first-harmonic integral multiple as first-harmonic.The high order harmonic component composition propagates in the microwave oven from efferent with first-harmonic.Because the wavelength of high order harmonic component is short, leaks into the microwave oven outside easily, causes microwave leakage, the security reliability of its work is not good enough.
3, summary of the invention:
The purpose of this utility model is to overcome above-mentioned shortcoming and a kind of magnetron of avoiding high order harmonic component to leak into the microwave oven outside is provided.The utility model design is ingenious, simple in structure, convenient and practical, and the security reliability of work is good.
Structural representation of the present utility model as shown in drawings, include anode tube (1), shell (2), ceramic supporting element (3), antenna (8), magnetic pole (9), blade (10), filament (11), shell (2) is welded on anode tube (1), ceramic supporting element (3) is welded on shell (2), antenna (8) passes anode tube (1) successively, shell (2), ceramic supporting element (3), magnetic pole (9) is installed in the two ends of anode tube (1), blade (10) and filament (11) are installed in the anode tube (1), and wherein shell (2) is equiped with at an end that is connected with ceramic supporting element (3) and suppresses the 1/4 wavelength type choke that high order harmonic component outputs to the magnetron outside.
Above-mentioned choke includes main inhibition five times, first choke (6) of fifth overtone and main second choke (7) that suppresses triple-frequency harmonics, wherein first choke (6) is the hollow metal cylinder (61) of open at both ends, one end of metallic cylinder (61) is made along the overhanging tube edge (62) of cylinder end, second choke (7) is that an end is uncovered, a hollow metal cylinder (71) of (72) at the bottom of the other end is made tin, the opening end of metallic cylinder (71) is made along the overhanging tube edge (73) of cylinder end, the tube end (72) is made the perforation (72A) of passing antenna (8), first choke (6) places in the cavity of second choke (7), and a tube edge (73) welding of the tube edge (62) of first choke (6) and second choke (7), and make the tube edge (62) of first choke (6) be welded on the end of shell (2).
The height A of above-mentioned first choke (6) is 3.0～8.0mm, and internal diameter C is Φ 7.0～12.0mm.
The height A of above-mentioned first choke (6) is 4.9～5.0mm, and internal diameter C is Φ 9mm.
The height B of above-mentioned second choke (7) is 5.0～8.2mm, and inside diameter D is Φ 9.8～15.8mm, and the internal diameter E of the perforation (72A) that the tube end (72) is located is Φ 7.0～12.0mm.
The height B of above-mentioned second choke (7) is 6.0～6.2mm, and inside diameter D is Φ 12.8mm, and the internal diameter E of the perforation (72A) that the tube end (72) is located is Φ 9mm.
The end of above-mentioned ceramic supporting element (3) is connected with blast pipe (5).
The outside of above-mentioned blast pipe (5) is provided with antenna cap (4).
The utility model adopts the structure that 1/4 wavelength type choke is set at the output of magnetron, and according to the transmission line principle, microwave signal is transmitted in coaxial, is infinity apart from the characteristic impedance at short circuit face 1/4 wavelength place, and microwave is with total reflection.Therefore, it can suppress high order harmonic component and outputs to the magnetron outside.In addition, choke in the utility model, its size design is considered to bring into play under the prerequisite of magnetron usefulness to greatest extent, improve the ability that suppresses unwanted high order harmonic component, and impedance by means of choke formation, improved the degree of coupling of output, and the output of magnetron and efficient are increased exponentially.The utility model is that a kind of design is ingenious, simple in structure, convenient and practical, the magnetron that the security reliability of work is good.
4, description of drawings:
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structural representation of first choke (6) in the utility model;
Fig. 3 is the structural representation of second choke (7) in the utility model.
5, embodiment:
Embodiment:
Structural representation of the present utility model as shown in Figure 1, include anode tube 1, shell 2, ceramic supporting element 3, antenna 8, magnetic pole 9, blade 10, filament 11, shell 2 is welded on anode tube 1, ceramic supporting element 3 is welded on shell 2, antenna 8 passes anode tube 1, shell 2, ceramic supporting element 3 successively, magnetic pole 9 is installed in the two ends of anode tube 1, blade 10 and filament 11 are installed in the anode tube 1, and wherein shell 2 is equiped with at an end that is connected with ceramic supporting element 3 and suppresses the 1/4 wavelength type choke that high order harmonic component outputs to the magnetron outside.
In the present embodiment, above-mentioned choke includes main inhibition five times, first choke 6 of fifth overtone and main second choke 7 that suppresses triple-frequency harmonics, wherein first choke 6 is the hollow metal cylinder 61 of open at both ends, one end of metallic cylinder 61 is made along the overhanging tube edge 62 of cylinder end, second choke 7 is that an end is uncovered, a hollow metal cylinder 71 of 72 at the bottom of the other end is made tin, the opening end of metallic cylinder 71 is made along the overhanging tube edge 73 of cylinder end, the perforation 72A that passes antenna 8 is made at the tube end 72, first choke 6 places in the cavity of second choke 7, and tube edge 73 welding of tube edge 62 and second choke 7 of first choke 6, and make an edge 62 of first choke 6 be welded on the end of shell 2.
The structural representation of above-mentioned first choke 6 as shown in Figure 2, its height A is 3.0～8.0mm, internal diameter C is Φ 7.0～12.0mm.In the present embodiment, the height A of first choke 6 is 4.9～5.0mm, and internal diameter C is Φ 9mm.
The structural representation of above-mentioned second choke 7 as shown in Figure 3, its height B is 5.0～8.2mm, inside diameter D is Φ 9.8～15.8mm, the internal diameter E of perforation 72A at tube place, the ends 72 is Φ 7.0～12.0mm.In the present embodiment, the height B of second choke 7 is 6.0～6.2mm, and inside diameter D is Φ 12.8mm, and the internal diameter E of the perforation 72A at tube place, the ends 72 is Φ 9mm.
In addition, for further guaranteeing serviceability of the present utility model, the end of above-mentioned ceramic supporting element 3 is connected with blast pipe 5.The outside of above-mentioned blast pipe 5 is provided with antenna cap 4.
The utility model in use, the microwave propagation that magnetron produces is in microwave oven, and the 6 main inhibition of first choke five times, fifth overtone, second choke, the 7 main triple-frequency harmonics that suppress, can suppress high order harmonic component by first choke 6 and second choke 7 and output to the magnetron outside, thereby avoid the high order harmonic component composition in first-harmonic propagates into microwave oven.
Claims (8)
1, a kind of magnetron, include anode tube (1), shell (2), ceramic supporting element (3), antenna (8), magnetic pole (9), blade (10), filament (11), shell (2) is welded on anode tube (1), ceramic supporting element (3) is welded on shell (2), antenna (8) passes anode tube (1) successively, shell (2), ceramic supporting element (3), magnetic pole (9) is installed in the two ends of anode tube (1), blade (10) and filament (11) are installed in the anode tube (1), it is characterized in that shell (2) is equiped with the 1/4 wavelength type choke that the inhibition high order harmonic component outputs to the magnetron outside at an end that is connected with ceramic supporting element (3).
2, magnetron according to claim 1, it is characterized in that above-mentioned choke includes main inhibition five times, first choke (6) of fifth overtone and main second choke (7) that suppresses triple-frequency harmonics, wherein first choke (6) is the hollow metal cylinder (61) of open at both ends, one end of metallic cylinder (61) is made along the overhanging tube edge (62) of cylinder end, second choke (7) is that an end is uncovered, a hollow metal cylinder (71) of (72) at the bottom of the other end is made tin, the opening end of metallic cylinder (71) is made along the overhanging tube edge (73) of cylinder end, the tube end (72) is made the perforation (72A) of passing antenna (8), first choke (6) places in the cavity of second choke (7), and a tube edge (73) welding of the tube edge (62) of first choke (6) and second choke (7), and make the tube edge (62) of first choke (6) be welded on the end of shell (2).
3, magnetron according to claim 2, the height A that it is characterized in that above-mentioned first choke (6) is 3.0～8.0mm, internal diameter C is Φ 7.0～12.0mm.
4, magnetron according to claim 3, the height A that it is characterized in that above-mentioned first choke (6) is 4.9～5.0mm, internal diameter C is Φ 9mm.
5, magnetron according to claim 2, the height B that it is characterized in that above-mentioned second choke (7) is 5.0～8.2mm, and inside diameter D is Φ 9.8～15.8mm, and the internal diameter E of the perforation (72A) that the tube end (72) is located is Φ 7.0～12.0mm.
6, magnetron according to claim 5, the height B that it is characterized in that above-mentioned second choke (7) is 6.0～6.2mm, and inside diameter D is Φ 12.8mm, and the internal diameter E of the perforation (72A) that the tube end (72) is located is Φ 9mm.
7,, it is characterized in that the end of above-mentioned ceramic supporting element (3) is connected with blast pipe (5) according to each described magnetron of claim 1 to 6.
8, magnetron according to claim 7 is characterized in that the outside of above-mentioned blast pipe (5) is provided with antenna cap (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520061056 CN2812285Y (en) | 2005-07-08 | 2005-07-08 | Magnetron |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520061056 CN2812285Y (en) | 2005-07-08 | 2005-07-08 | Magnetron |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2812285Y true CN2812285Y (en) | 2006-08-30 |
Family
ID=36938674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520061056 Expired - Lifetime CN2812285Y (en) | 2005-07-08 | 2005-07-08 | Magnetron |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2812285Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103594305A (en) * | 2012-08-17 | 2014-02-19 | 乐金电子(天津)电器有限公司 | Choking ring for magnetron, and magnetron provided with choking ring |
| CN117283176A (en) * | 2023-10-27 | 2023-12-26 | 中山市美格电子科技有限公司 | Magnetron A side welding process |
-
2005
- 2005-07-08 CN CN 200520061056 patent/CN2812285Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103594305A (en) * | 2012-08-17 | 2014-02-19 | 乐金电子(天津)电器有限公司 | Choking ring for magnetron, and magnetron provided with choking ring |
| CN117283176A (en) * | 2023-10-27 | 2023-12-26 | 中山市美格电子科技有限公司 | Magnetron A side welding process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: MIDEA GROUP CO., LTD. Free format text: FORMER NAME: MEIDI GROUP CO. LTD. |
|
| CP03 | Change of name, title or address |
Address after: 528311 Guangdong, Foshan, Beijiao, the United States, the United States and the United States on the avenue of the United States, the headquarters of the United States building B floor, District, 26-28 Patentee after: MIDEA GROUP Co.,Ltd. Address before: 528311 Penglai Road, Beijiao Town, Foshan District, Guangdong, China, Patentee before: Midea Group |
|
| CX01 | Expiry of patent term |
Expiration termination date: 20150708 Granted publication date: 20060830 |
|
| EXPY | Termination of patent right or utility model |