CN101118829A - Anode blade of magnetrons for improved micro-wave oven - Google Patents
Anode blade of magnetrons for improved micro-wave oven Download PDFInfo
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- CN101118829A CN101118829A CNA2006100151346A CN200610015134A CN101118829A CN 101118829 A CN101118829 A CN 101118829A CN A2006100151346 A CNA2006100151346 A CN A2006100151346A CN 200610015134 A CN200610015134 A CN 200610015134A CN 101118829 A CN101118829 A CN 101118829A
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- blade
- anode
- soldering
- anode cylinder
- strap
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Abstract
The present invention relates to an improved anode blade of a magnetic control tube used for a micro-wave oven. The anode structure of the magnetic control tube comprises an anode cylinder, a blade and a septum strap; wherein, the inner wall of the anode cylinder is connected with the blade by means of the soldering technique, the placket of the blade is connected with the annular septum strap via the soldering technique, the contact surface of the blade and the anode cylinder has the same curvature radium as the inner wall surface of the anode cylinder, and the blade can be soldered and connected with the inner wall of the anode cylinder under the condition that the soldering surfaces closely clamp; the soldering face of the placket on the blade has the same curvature radius as the annular septum strap, and the placket can be soldered and connected with the septum strap under the condition that the soldering faces closely clamp. The present invention essentially removes the clearance between the inner wall surface of the anode cylinder and the soldering surface at the end part of the blade and between the placket of the blade and the soldering face of the septum strap, while forming a close joint, thus guaranteeing the even distribution of the metal thickness on the soldering faces; besides, the soldered quality gets improved, thereby assuring the intrinsic frequency of the anode system and the stability of the anode system under the door-mode.
Description
Technical field
The present invention relates to a kind of anode blade of improved magnetron for microwave oven.
Background technology
As shown in Figure 1, the magnetron that microwave oven is used is a kind of vacuum diode, and it mainly comprises filament (negative electrode) 1 and anode 2 structures.Above-mentioned filament can directly be heated and is arranged at central part along the diode axis; Above-mentioned anode construction comprises the anode cylinder 21 on the inner periphery that is arranged on diode and is connected to a plurality of blades 22 on the anode cylinder internal face and that extend to the center of circle along radius, these blade rings radially outward are provided with at interval around negative electrode, and also being connected to a plurality of on the above-mentioned anode blade 22 is the annular diaphragm band 231 to 234 of concentric shafts with the diode axis.
In addition, magnetron also comprises a magnetic circuit, a magnetron efferent and an input part.Above-mentioned magnetic circuit comprises support 3 and last lower magnet 5,5 ', and this magnetic circuit is added in magnetic flux in the useful space that forms between cathode filament 1 and the anode cylinder 21.Above-mentioned output comprises A side pipe shell 74, A side pottery 73, penetrates antenna 72 and antenna cap 71, and the microwave energy that it is used for being delivered to anode cylinder is transmitted into the outside of magnetron.Above-mentioned input part also comprises a higfh-tension ceramics 92 and filter coil 91, prevents that the useless high fdrequency component that results from the useful space from flowing back into power source.Between the inner peripheral surface of the outer peripheral face of anode cylinder 21 and support 3, be provided with one group of fin 4 that is used for keeping the equilibrium of magnetron internal and external temperature.The bottom of anode construction 2 is provided with the shielding box 81,82 that is used to prevent the microwave energy leakage.
The magnetron of this structure after the filament energising, is done cycloid motion and is produced microwave from () son by the heat of filament emission under the effect in electric field and magnetic field.The microwave energy that is delivered to blade by efferent antenna lead-in antenna lead and transmission antennas transmit to the magnetron outside, be placed on food in the microwave oven with heating.
The anode construction of above-mentioned existing magnetron for microwave oven is made of anode cylinder, blade and mode separation strapping; Above-mentioned anode cylinder is the cylindrical shape that two end faces are provided with step, is formed by the oxygen-free copper cutting, and above-mentioned blade is square shape plate, and its both sides of the edge have several openings parallel mutually with the diode axis, and it is by the oxygen-free copper punch forming; Above-mentioned mode separation strapping is formed by the cutting of oxygen-free copper copper pipe ringwise.Between above-mentioned anode cylinder internal face and the blade tip and be connected in aggregates with the soldering welding procedure respectively between blade breach and the mode separation strapping.Because the anode cylinder inwall is arc-shaped surface, and the rectangular plane of the blade tip that joins with it, so certainly exist the gap that forms between the arc Qu Xiangyu plane between the two, weld metal can not be uniformly distributed in whole solder side, and cause failure welding, make the change of whole anode system eigenfrequency.Equally, because the blade openings face of stamping-out moulding is the plane, the arc-shaped surface of itself and mode separation strapping can not be fitted well, thereby makes the weld metal thickness distribution inequality on the solder side, and then causes magnetron can't guarantee stably to work under the ∏ pattern.
Summary of the invention
Technical problem underlying to be solved by this invention is, the defective that overcoming the existing magnetron that causes owing to failure welding can not be normally, stably work, and a kind of anode blade of improved magnetron for microwave oven is provided, to guarantee welding quality, improve the total quality of magnetron.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of anode blade of improved magnetron for microwave oven, the anode construction of magnetron comprises anode cylinder, blade and mode separation strapping, and the inwall of anode cylinder is connected with soldering processes with blade, and the opening on the blade is connected with soldering processes with the annular diaphragm band; It is characterized in that: described blade, it has the radius of curvature identical with the anode cylinder internal face with the contact jaw end face of anode cylinder, and can soldering be welded in the anode cylinder inwall under the condition that solder side is close to mutually; Opening on the described blade, its solder side have and the identical radius of curvature of annular diaphragm band solder side, and can be connected with the mode separation strapping soldering under the condition that solder side is close to mutually.
The invention has the beneficial effects as follows, because technique scheme has been eliminated the gap between the solder side that reaches blade openings and mode separation strapping between existing anode cylinder internal face and the blade tip solder side effectively, fit tightly and become, so can guarantee that the weld metal thickness distribution on the solder side is even, improve brazing quality, thereby guaranteed the eigenfrequency of anode system and the stability under the work of ∏ pattern.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is the structural representation of magnetron for microwave oven
Fig. 2 A is the longitudinal sectional drawing of the anode construction of magnetron
Fig. 2 B is the A-A profile of Fig. 2 A
Fig. 2 C is the B-B profile of Fig. 2 A
The number in the figure explanation:
1 cathode construction (filament), 2 anode constructions
21 anode cylinders, 22 blades
221 blades, 1 222 blades 2
231 mode separation strappings 1
232 mode separation strappings, 2 233 mode separation strappings 3
234 mode separation strappings, 43 supports
Magnet on 4 fin 5
5 ' lower magnet, 6 pads
7 emission parts, 71 antenna cap
72 transmitting antenna 73A side potteries
74A side pipe shell
81,82 shielding boxs, 9 filter coils
10 higfh-tension ceramicses
Embodiment
The structure of magnetron for microwave oven of the present invention, with the structure of existing magnetron for microwave oven shown in Figure 1 be essentially identical.The improvement of magnetron for microwave oven anode construction of the present invention only is anode blade.In order to clearly demonstrate main points of the present invention, now be described as follows in conjunction with Fig. 2 A and Fig. 2 B:
Shown in Fig. 2 A, Fig. 2 B and Fig. 2 C, the anode construction 2 of the magnetron of the embodiment of the invention, be made of an anode cylinder 21, eight anode blades 221～228 (only demonstrating two blades 221 and 222 among the figure) and four mode separation strappings 231,232,233,234, the end face a of the end that above-mentioned eight anode blades and anode cylinder 21 join all is processed into the arc-shaped surface that radius of curvature equals anode cylinder inwall radius R 0; Each blade both sides is provided with two openings respectively, for each mode separation strapping have at least three angles each other 120 ° the opening of blade become spaced set at the anode cylinder inwall, it is processed to the arc-shaped surface that radius of curvature equates with the solder side radius of curvature of mode separation strapping with the solder side of mode separation strapping.The b portion opening surface of present embodiment blade 221 is the circular arc camber that radius of curvature equals the inside radius R1 of mode separation strapping 231; The c portion opening surface of blade 222 is processed into the circular arc camber that radius of curvature equals mode separation strapping 232 outer radius R2; The d portion opening surface of blade 221 is processed into the arc-shaped surface that radius of curvature equals the inside radius R4 of annular diaphragm band 234; The e portion opening surface of blade 222 is the arc-shaped surface that radius of curvature equals the inside radius R3 of annular diaphragm band 233.Its excess-three is to blade, wherein has at least two pairs of blades identical with a pair of blade 221,222 structures among Fig. 2 A and be mutually 120 ° of angle settings.
This improved blade, because reaching between blade and the anode cylinder inwall between blade breach and the mode separation strapping all becomes gapless applying to contact, so the weld metal thickness distribution is even when soldering, firm welding not only, and can not influence the eigenfrequency and the operate as normal of magnetron.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, every foundation technical spirit of the present invention all still belongs in the scope of technical solution of the present invention any simple modification, equivalent variations and modification that above embodiment did.
Claims (1)
1. the anode blade of an improved magnetron for microwave oven, the anode construction of magnetron comprises anode cylinder, blade and mode separation strapping, and the inwall of anode cylinder is connected with soldering processes with blade, and the opening on the blade is connected with soldering processes with the annular diaphragm band; It is characterized in that: described blade, it has the radius of curvature identical with the anode cylinder internal face with the contact jaw end face of anode cylinder, and can soldering be welded in the anode cylinder inwall under the condition that solder side is close to mutually; Opening on the described blade, its solder side have and the identical radius of curvature of annular diaphragm band solder side, and can be connected with the mode separation strapping soldering under the condition that solder side is close to mutually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100151346A CN101118829A (en) | 2006-08-04 | 2006-08-04 | Anode blade of magnetrons for improved micro-wave oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100151346A CN101118829A (en) | 2006-08-04 | 2006-08-04 | Anode blade of magnetrons for improved micro-wave oven |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101118829A true CN101118829A (en) | 2008-02-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006100151346A Pending CN101118829A (en) | 2006-08-04 | 2006-08-04 | Anode blade of magnetrons for improved micro-wave oven |
Country Status (1)
| Country | Link |
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| CN (1) | CN101118829A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106710999A (en) * | 2016-12-27 | 2017-05-24 | 广东威特真空电子制造有限公司 | Magnetron anode assembly and magnetron provided with magnetron anode assembly |
-
2006
- 2006-08-04 CN CNA2006100151346A patent/CN101118829A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106710999A (en) * | 2016-12-27 | 2017-05-24 | 广东威特真空电子制造有限公司 | Magnetron anode assembly and magnetron provided with magnetron anode assembly |
| CN106710999B (en) * | 2016-12-27 | 2019-06-28 | 广东威特真空电子制造有限公司 | A kind of anode of magnetron component and the magnetron equipped with the anode of magnetron component |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20080206 |