CN103594305A - Choking ring for magnetron, and magnetron provided with choking ring - Google Patents
Choking ring for magnetron, and magnetron provided with choking ring Download PDFInfo
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- CN103594305A CN103594305A CN201210295370.3A CN201210295370A CN103594305A CN 103594305 A CN103594305 A CN 103594305A CN 201210295370 A CN201210295370 A CN 201210295370A CN 103594305 A CN103594305 A CN 103594305A
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- magnetron
- magnetic pole
- lower magnetic
- pole sheet
- ring
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Abstract
The invention discloses a choking ring for a magnetron, and a magnetron provided with the choking ring. The choking ring for the magnetron is in the shape of a hat and comprises an upper edge with an opening formed in the middle to form a round brim and a convex edge connected to the opening in the middle of the upper edge and projecting downwards, wherein an opening is formed at the bottom of the convex edge. The magnetron comprises an output assembly, an upper magnetic pole sheet, an anode assembly, a lower magnetic pole sheet and a cathode assembly which are successively arranged from the top to the bottom, wherein the chocking ring is arranged between the lower magnetic pole sheet and the cathode assembly, and the upper portion of the chocking ring is embedded in the lower magnetic pole sheet. The magnetron may also comprises an output assembly, an upper magnetic pole sheet, an anode assembly, a lower magnetic pole sheet and a cathode assembly which are successively arranged from the top to the bottom, wherein the chocking ring is arranged between the lower magnetic pole sheet and the cathode assembly, and the upper portion of the chocking ring is embedded in the lower magnetic pole sheet through welding. By using the magnetron and the choking ring provided by the invention, the leakage of 5th harmonic waves can be effectively prevented, the improvement effects are obvious, high-frequency interference waves are attenuated to a large extent, and electro-magnetic interference (EMI) mandatory standards are satisfied.
Description
Technical field
The present invention relates to a kind of magnetron.Particularly relate to a kind of for the chokes ring of magnetron and the magnetron that is provided with chokes ring.
Background technology
Microwave oven is to switch on power, and utilizes microwave action that magnetron produces and the machine of cooking food easily.Particularly recently except magnetron, be also provided with the heating sources such as heater, occurred multiple cooking method, that is, recycle the heat producing in heater and the method for arranging, or the position of control heater and method of arranging etc.
Magnetron is a kind of electronic device that can convert electric energy to microwave electromagnetic energy, is mainly used in microwave oven or electric lighting.Magnetron produces high-frequency microwave under the high-tension current effect applying, and described high-frequency microwave sends waveguide to by microwave energy output device.Waveguide is the high-frequency microwave of magnetron generation to be sent to the microwave path of microwave oven internal.Magnetron is for microwave oven, magnetron frequency electromagnetic waves (being microwave) is out inner by the heating cavity that enters into microwave oven, and be irradiated on the food of the cooking, food molecule is occurred high frequency polarized, food molecule is occurred high frequency polarized, between food molecule, occur rub and generate heat, thereby reach the object of cooking food.
The structure of existing magnetron as shown in Figure 1 and Figure 2, is from top to bottom disposed with: output precision 1, upper pole piece 2, anode assemblies 3, lower magnetic pole sheet 4 and cathode assembly 5.The magnetron of this structure shown in Fig. 1, Fig. 2, can not effectively suppress the leakage of 5th harmonic wave, and 5th harmonic wave is all gone out from MGT internal emission, can only suppress by external structure.But, by external structure, suppress, will make the cost of product increase, need to improve assembleability simultaneously, also to consider the impact of other characterisitic parameter.
Summary of the invention
Technical problem to be solved by this invention is, provide a kind of can effectively contain that 5th harmonic wave reveals for the chokes ring of magnetron and the magnetron that is provided with chokes ring.
The technical solution adopted in the present invention is: a kind of chokes ring for magnetron, it is characterized in that, this chokes ring is hat-shaped, in the middle of including, be formed with the upper edge that opening forms a circle shade, be connected to the middle opening part in upper edge and protrude the chimb that forms cap body downwards, opening is formed on the bottom of described chimb.
A kind of magnetron that is provided with chokes ring claimed in claim 1, include and from top to bottom set gradually: output precision, upper pole piece, anode assemblies, lower magnetic pole sheet and cathode assembly, it is characterized in that, between described lower magnetic pole sheet and cathode assembly, be provided with chokes ring, wherein, the top of described chokes ring is embedded in lower magnetic pole sheet.
Described chokes ring is hat-shaped, in the middle of including, be formed with the upper edge that opening forms a circle shade, be connected to the middle opening part in upper edge and protrude the chimb that forms cap body downwards, opening is formed on the bottom of described chimb, in the lower magnetic pole sheet described in described upper edge is embedded in.
In the edge portion of described lower magnetic pole sheet, be formed with for embedding the groove of the upper edge of chokes ring.
A kind of magnetron that is provided with chokes ring, include and from top to bottom set gradually: output precision, upper pole piece, anode assemblies, lower magnetic pole sheet and cathode assembly, between described lower magnetic pole sheet and cathode assembly, be provided with chokes ring, what wherein, the top of described chokes ring embedded is welded in lower magnetic pole sheet.
Described chokes ring is hat-shaped, in the middle of including, be formed with the upper edge that opening forms a circle shade, be connected to the opening part of upper edge and protrude the chimb that forms cap body downwards, opening is formed on the bottom of described chimb, and what described upper edge embedded is welded in described lower magnetic pole sheet.
In the edge portion of described lower magnetic pole sheet, be formed with the groove of the upper edge of the welding chokes ring for embedding.
Of the present invention for the chokes ring of magnetron and the magnetron that is provided with chokes ring, by increase chokes ring in magnetron, 5th harmonic emissions root to electromagnetic compatibility (EMI) is improved, the effectively leakage of containment 5th harmonic wave, improve successful, the High-frequency Interference that significantly decayed ripple, and meet electromagnetic compatibility (EMI) pressure standard.
Accompanying drawing explanation
Fig. 1 is the external structure schematic diagram of magnetron;
Fig. 2 is the decomposition texture schematic diagram of prior art magnetron;
Fig. 3 is the decomposition texture schematic diagram of magnetron of the present invention;
Fig. 4 is the structural representation of lower magnetic pole sheet of the present invention;
Fig. 5 is the structural representation of chokes ring of the present invention.
In figure:
1: output precision 2: upper pole piece
3: anode assemblies 4: lower magnetic pole sheet
5: cathode assembly 6: chokes ring
7: upper edge 8: chimb
9: opening 10: edge portion
11: groove
Embodiment
Below in conjunction with embodiment and accompanying drawing, the chokes ring for magnetron of the present invention and the magnetron that is provided with chokes ring are described in detail.
Chokes ring for magnetron of the present invention, as shown in Figure 5, this chokes ring is hat-shaped, is formed with the upper edge 7 that opening forms a circle shade in the middle of including, be connected to the middle opening part in upper edge 7 and protrude the chimb 8 that forms cap body downwards, opening 9 is formed on the bottom of described chimb 8.
As shown in Fig. 3, Fig. 5, the magnetron that is provided with chokes ring of the present invention, include and from top to bottom set gradually: output precision 1, upper pole piece 2, anode assemblies 3, lower magnetic pole sheet 4 and cathode assembly 5, between described lower magnetic pole sheet 4 and cathode assembly 5, be provided with chokes ring 6, wherein, the top of described chokes ring 6 is embedded in lower magnetic pole sheet 4, for the effectively leakage of containment 5th harmonic wave.Described chokes ring 6 is hat-shaped, in the middle of including, be formed with the upper edge 7 that opening forms a circle shade, be connected to the middle opening part in upper edge 7 and protrude the chimb 8 that forms cap body downwards, opening 9 is formed on the bottom of described chimb 8, and described upper edge 7 is embedded in described lower magnetic pole sheet 4.As shown in Figure 4, in the edge portion 10 of described lower magnetic pole sheet 4, be formed with for embedding the groove 11 of the upper edge 7 of chokes ring 6.
The magnetron that is provided with chokes ring of the present invention, can also include from top to bottom and set gradually: output precision 1, upper pole piece 2, anode assemblies 3, lower magnetic pole sheet 4 and cathode assembly 5, between described lower magnetic pole sheet 4 and cathode assembly 5, be provided with chokes ring 6, wherein, what the top of described chokes ring 6 embedded is welded in lower magnetic pole sheet 4, for the effectively leakage of containment 5th harmonic wave.Described chokes ring 6 is hat-shaped, in the middle of including, be formed with the upper edge 7 that opening forms a circle shade, be connected to the opening part of upper edge 7 and protrude the chimb 8 that forms cap body downwards, opening 9 is formed on the bottom of described chimb 8, and what described upper edge 7 embedded is welded in described lower magnetic pole sheet 4.In the edge portion 10 of described lower magnetic pole sheet 4, be formed with the groove 11 of the upper edge 7 of the welding chokes ring 6 for embedding.
Of the present invention for the chokes ring of magnetron and the magnetron that is provided with chokes ring, by increasing chokes ring structure, be placed on lower magnetic pole sheet position, and the lower surface of lower magnetic pole sheet is increased to location notch, for fixing (or welding location) chokes ring, the 5th harmonic emissions root of electromagnetic compatibility (EMI) is improved, effectively contain the leakage of 5th harmonic wave, improve successful, High-frequency Interference ripple is significantly decayed.
Claims (7)
1. the chokes ring for magnetron, it is characterized in that, this chokes ring is hat-shaped, in the middle of including, be formed with the upper edge (7) that opening forms a circle shade, be connected to the middle opening part in upper edge (7) and protrude the chimb (8) that forms cap body downwards, opening (9) is formed on the bottom of described chimb (8).
2. a magnetron that is provided with chokes ring claimed in claim 1, include and from top to bottom set gradually: output precision (1), upper pole piece (2), anode assemblies (3), lower magnetic pole sheet (4) and cathode assembly (5), it is characterized in that, between described lower magnetic pole sheet (4) and cathode assembly (5), be provided with chokes ring (6), wherein, the top of described chokes ring (6) is embedded in lower magnetic pole sheet (4).
3. the magnetron with chokes ring according to claim 2, it is characterized in that, described chokes ring (6) is hat-shaped, in the middle of including, be formed with the upper edge (7) that opening forms a circle shade, be connected to the middle opening part in upper edge (7) and protrude the chimb (8) that forms cap body downwards, opening (9) is formed on the bottom of described chimb (8), and described upper edge (7) are embedded in described lower magnetic pole sheet (4).
4. the magnetron with chokes ring according to claim 3, is characterized in that, is formed with the groove (11) of the upper edge (7) for embedding chokes ring (6) in the edge portion (10) of described lower magnetic pole sheet (4).
5. a magnetron that is provided with chokes ring claimed in claim 1, include and from top to bottom set gradually: output precision (1), upper pole piece (2), anode assemblies (3), lower magnetic pole sheet (4) and cathode assembly (5), it is characterized in that, between described lower magnetic pole sheet (4) and cathode assembly (5), be provided with chokes ring (6), what wherein, the top of described chokes ring (6) embedded is welded in lower magnetic pole sheet (4).
6. the magnetron with chokes ring according to claim 5, it is characterized in that, described chokes ring (6) is hat-shaped, in the middle of including, be formed with the upper edge (7) that opening forms a circle shade, be connected to the opening part of upper edge (7) and protrude the chimb (8) that forms cap body downwards, opening (9) is formed on the bottom of described chimb (8), and what described upper edge (7) embedded is welded in described lower magnetic pole sheet (4).
7. the magnetron with chokes ring according to claim 6, is characterized in that, is formed with the groove (11) of the upper edge (7) of the welding chokes ring (6) for embedding in the edge portion (10) of described lower magnetic pole sheet (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210295370.3A CN103594305A (en) | 2012-08-17 | 2012-08-17 | Choking ring for magnetron, and magnetron provided with choking ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210295370.3A CN103594305A (en) | 2012-08-17 | 2012-08-17 | Choking ring for magnetron, and magnetron provided with choking ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103594305A true CN103594305A (en) | 2014-02-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210295370.3A Pending CN103594305A (en) | 2012-08-17 | 2012-08-17 | Choking ring for magnetron, and magnetron provided with choking ring |
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| CN (1) | CN103594305A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112242282A (en) * | 2020-08-07 | 2021-01-19 | 广东格兰仕微波炉电器制造有限公司 | Assembly process of pipe core assembly |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4223245A (en) * | 1977-01-21 | 1980-09-16 | Tokyo Shibaura Electric Co., Ltd. | Magnetron device exhibiting reduced microwave leakage |
| CN1165392A (en) * | 1996-03-18 | 1997-11-19 | 三洋电机株式会社 | Magnetron |
| CN2812285Y (en) * | 2005-07-08 | 2006-08-30 | 美的集团有限公司 | Magnetron |
| CN101071717A (en) * | 2006-05-12 | 2007-11-14 | 乐金电子(天津)电器有限公司 | Magnetron with anti-current structure |
| CN101989522A (en) * | 2009-07-30 | 2011-03-23 | 乐金电子(天津)电器有限公司 | Choking structure of magnetron of microwave oven |
| CN102237239A (en) * | 2010-04-27 | 2011-11-09 | 乐金电子(天津)电器有限公司 | Choking structure of magnetron |
-
2012
- 2012-08-17 CN CN201210295370.3A patent/CN103594305A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4223245A (en) * | 1977-01-21 | 1980-09-16 | Tokyo Shibaura Electric Co., Ltd. | Magnetron device exhibiting reduced microwave leakage |
| CN1165392A (en) * | 1996-03-18 | 1997-11-19 | 三洋电机株式会社 | Magnetron |
| CN2812285Y (en) * | 2005-07-08 | 2006-08-30 | 美的集团有限公司 | Magnetron |
| CN101071717A (en) * | 2006-05-12 | 2007-11-14 | 乐金电子(天津)电器有限公司 | Magnetron with anti-current structure |
| CN101989522A (en) * | 2009-07-30 | 2011-03-23 | 乐金电子(天津)电器有限公司 | Choking structure of magnetron of microwave oven |
| CN102237239A (en) * | 2010-04-27 | 2011-11-09 | 乐金电子(天津)电器有限公司 | Choking structure of magnetron |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112242282A (en) * | 2020-08-07 | 2021-01-19 | 广东格兰仕微波炉电器制造有限公司 | Assembly process of pipe core assembly |
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Application publication date: 20140219 |