CN102820192B - The fin of anode of magnetron - Google Patents
The fin of anode of magnetron Download PDFInfo
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- CN102820192B CN102820192B CN201110150103.2A CN201110150103A CN102820192B CN 102820192 B CN102820192 B CN 102820192B CN 201110150103 A CN201110150103 A CN 201110150103A CN 102820192 B CN102820192 B CN 102820192B
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- fin
- anode
- magnetron
- radiator shutter
- bending
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Abstract
A kind of fin of anode of magnetron, anode hole is left in the middle part of fin, anode orifice plate is formed around anode hole, the left and right sides of fin is sheared respectively and bending process goes out multiple radiator shutter, multiple fin is the entirety be made up of same metallic plate, be interconnected by radiator shutter between abutting fins, and the adjacent heat radiation blade bent direction of fin is contrary, the overbending direction of abutting fins anode orifice plate is contrary, the corresponding overbending direction that is contrary, the spacing bending of abutting fins of projection direction that is abutting fins water conservancy diversion projection is corresponding contrary; Multiple fin be connected as a single entity bends successively along the junction of radiator shutter, makes to leave same distance between abutting fins, and multiple fin forms the coaxial groups of fins of anode hole.Improve the heat-exchange capacity of anode of magnetron, reduce the temperature of anode of magnetron, the service behaviour of magnetron is improved.
Description
Technical field
The invention belongs to the technical field of magnetron, be specifically related to a kind of production and install more simple, the fin of the anode of magnetron that radiating effect is optimized.
Background technology
Fig. 1 is the magnetron structures longitudinal section of prior art; Fig. 2 is the structural representation of the fin of the anode of magnetron of prior art; Fig. 3 is the vertical view of the fin of the anode of magnetron of prior art; Fig. 4 is the fin front view after assembling of the anode of magnetron of prior art.
As Figure 1-Figure 4, magnetron mainly includes: positive electrode portion; Negative electrode portion; Magnetic pole piece; Microwave emission portion.Positive electrode portion, by the anode casing 11 of barrel shape, the inwall of anode casing 11 is formed with multiple radial blade 12, blade welds inner and outer ring in lower groove and forms.
Negative electrode portion comprises can radiate thermionic filament 13 by formed spiral-shaped of W (tungsten) and TH (thorium) element on center shaft; The action space 14 that hot electron is rotated is formed between the end and filament 13 of blade 12; In order to prevent the hot electron radiating out from filament 13 from departing from from central shaft above-below direction, form upper seal 15 and lower seal 16 in the top and bottom of filament 13; In order to filament supports 13 and introduce power supply, devise through lower seal 16 and connect filament central authorities' guide rod 17 of upper seal 15 and introduce power supply and connect the side guide rod 18 of lower seal 16 together with central guide rod 17.
Magnetic pole piece comprises the upper magnetic pole 20 that the top and bottom being fixed on anode casing 11 also can form magnetic flux, lower magnetic pole 21; In order to make that action space 14 forms magnetic field, install magnetite 22 in the lower end of the upper end of upper magnetic pole 20 and lower magnetic pole 21, magnetite is circulus and has certain thickness.
In addition, also have through ceramic component 31 and connect filament central authorities guide rod 17 one end and the filter coil 32 of filter function is carried out in side guide rod 18 one end; Connect filter coil 32, and be connected across both ends of power introduces power supply capacitor 33 from outside; Top seal room 41 and the lower seal room 42 of flux interaction are carried out in the bottom on the top and lower magnetic pole 21 that are formed in magnetic pole 20; In order to the high frequency waves produced in action space 14 are transmitted into outside, be provided with and be connected to blade 12 and the antenna 51 that extracts of through upper magnetic pole 20 and top seal room 41 central authorities; Producing and the heat transmitted by blade 12 in action space 14 to cool, being provided with fin 61; Go back handlebar fin 61 in addition to protect in inside and the parts such as shell 19 grade that the heat that fin 61 transmits is shed.
Magnetron cooling fin 61 of the prior art is stamped to form by the metallic plate of aluminium material is one-body molded usually, the anode hole 62 for assembling anode of magnetron shell is left in the middle part of fin, fin is bending around the position of anode hole thus is forming anode orifice plate 66, and when fin is installed, anode orifice plate and anode casing cooperatively interact.Cut respectively at the two ends, left and right of fin, bending process goes out three radiator shutters 63, to expand fin and the contact area flowing through air; Multiple water conservancy diversion projection 65 symmetrically arranged is formed around anode hole, water conservancy diversion projection centre position arranges pod apertures 67, air affects can change the flow direction by it when flowing through space between fin, the anode casing that a small amount of air can walk around magnetron arrives leeward side, thus can strengthen the exchange heat of anode casing leeward side; Be formed with fixing bending 64 in the outside end of each radiator shutter, fixing bending is closely fixed in shell 19 after can making fin deformation when parallel superposition assembling, and leaves certain distance to each other to ensure that air can pass through.
Shell 19 comprises the upper casing 19a holding interior arrangement from upside and the lower casing 19b holding interior arrangement from downside.
Blast pipe 60 shown in figure is after magnetron assembling, in order to magnetron being become the part that vacuum state cuts off when being exhausted operation.
The following describes magnetron working condition as above.When magnetic pole 20 and lower magnetic pole 21 form magnetic flux on the magnetic field that magnetite 22 produces is passed through, between blade 12 and filament 13, form magnetic field.In time being energized by capacitor 33, filament 13 radiates hot electron at about 2000K temperature, and 4.0KV to the 4.4KV of hot electron between filament 13 and positive electrode portion and the action space 14 under the effect in the magnetic field that magnetite 22 produces rotate.
Like this, when being energized to filament 13 by central guide rod 17 and side guide rod 18, the electric field of about 2450MHZ is produced between blade 12 and filament 13, make hot electron by becoming harmonic wave under the effect of Electric and magnetic fields in action space 14, and make harmonic propagation be transmitted into outside to the antenna 51 connecting blade 12.
But, there is following problem in prior art:
In the fin of the anode of magnetron of prior art, fin directly contacts with anode of magnetron shell, forms groups of fins by the fin of multiple separation, and the space between adjacent fin is less.During magnetron work, extraneous air flows through the space between fin and carries out heat exchange with fin, inter fin space is lower from the less air velocity that makes, the air now flowing through rear side radiator shutter has been the air carrying out heat exchange with front side radiator shutter, the temperature of air is higher, rear side radiator shutter cannot transfer heat to air fully, heat is caused to be concentrated on a heat sink, simultaneously, heat-exchange capacity when air flows through anode of magnetron also depends on the size of area of dissipation, the actual area of dissipation of the fin that spacing is less is less, air-flow cannot be walked around anode casing and come leeward side, the heat exchange of air and anode of magnetron can only be completed in less scope, the leeward side of anode of magnetron is become in " dead band ", thus cause the heat-sinking capability of magnetron poor, be unfavorable for system radiating.In addition, owing to needing to install multiple different fin successively when magnetron is installed, cause production process comparatively complicated.
Summary of the invention
The present invention for solve in prior art the technical problem that exists and provide a kind of produce and install more simple, the fin of the anode of magnetron that radiating effect is optimized.
The technical scheme that the present invention takes for the technical problem existed in solution prior art is:
The fin of anode of magnetron of the present invention, is stamped to form by metallic plate is one-body molded, in the middle part of fin, leaves anode hole, for assembling the anode casing of magnetron; Fin around anode hole position is bent to form anode orifice plate; Multiple water conservancy diversion projection and spacing bending are set on a heat sink; The left and right sides of fin is sheared respectively and bending process goes out multiple radiator shutter, multiple fin is the entirety be made up of same metallic plate, be interconnected by radiator shutter between abutting fins, and the adjacent heat radiation blade bent direction of fin is contrary, the overbending direction of abutting fins anode orifice plate is contrary, the corresponding overbending direction that is contrary, the spacing bending of abutting fins of projection direction that is abutting fins water conservancy diversion projection is corresponding contrary; Multiple fin be connected as a single entity bends successively along the junction of radiator shutter, the radiator shutter overbending direction of each fin after making bending, the overbending direction of anode orifice plate, the projection direction of water conservancy diversion projection are corresponding identical separately respectively along both sides with the overbending direction of spacing bending, and leaving same distance between abutting fins, multiple fin forms the coaxial groups of fins of anode hole.
The present invention can also adopt following technical measures:
The top bending of described radiator shutter forms fixing bending, arranges connecting plate between the fixing bending of interconnective radiator shutter, connects two radiator shutters by connecting plate.
Between the radiator shutter that fixing bending spacing is less, connecting plate is set.
The width of described connecting plate is identical with the radiator shutter width of connection, and distance between the height of connecting plate with abutting fins in above-mentioned groups of fins is identical.
Radiator shutter arranges the opening running through fixing bending and connecting plate.
The sleeve be made up of high heat transfer coefficient material is through gelled anode hole in above-mentioned groups of fins, and the inwall of sleeve and the anode casing close contact of magnetron, the outer wall of sleeve is with the mutual close contact of anode orifice plate of fin.
The advantage that the present invention has and good effect are:
In the fin of anode of magnetron of the present invention, multiple fin is formed by the metallic plate time processing that a slice is identical, adjacent fin is interconnected by radiator shutter, the groups of fins that fin is parallel to each other is formed successively after bending, make the anode of magnetron through gelled anode hole when mounted, thus can disposable all fin be completed fixing simultaneously, simplify production stage, improve production efficiency.In addition, arrange simultaneously through the sleeve of each anode hole of groups of fins, by sleeve, the heat of anode of magnetron is transferred on a fin in time, thus increase the area of dissipation of fin, utilize sleeve can expand space between abutting fins further, when external air flow is out-of-date can ensure each radiator shutter can fully and air carry out heat exchange, therefore improve the heat-exchange capacity of the fin of anode of magnetron leeward side, reduce the temperature of anode of magnetron, the service behaviour of magnetron is improved.
Accompanying drawing explanation
Fig. 1 is the magnetron structures longitudinal section of prior art;
Fig. 2 is the structural representation of the fin of the anode of magnetron of prior art;
Fig. 3 is the vertical view of the fin of the anode of magnetron of prior art;
Fig. 4 is the fin front view after assembling of the anode of magnetron of prior art;
Fig. 5 is the schematic diagram of fin after being bent to form groups of fins of anode of magnetron of the present invention;
Fig. 6 is the vertical view of the fin of anode of magnetron of the present invention;
Fig. 7 is the end view of the fin of anode of magnetron of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the present invention will be described in detail.
All be as the criterion with the fin of anode of magnetron front view direction after assembling for the ease of nouns of locality such as the present invention will be described, the front, rear, left and right in specification.
Fig. 5 is the structural representation of the fin of anode of magnetron of the present invention.
As shown in Figure 5, the fin 61 of anode of magnetron of the present invention, is stamped to form by metallic plate is one-body molded, leaves anode hole 62 in the middle part of fin 61, for assembling the anode casing of magnetron; Fin around anode hole position is bent to form anode orifice plate 66, the contact area of fin and thermal source is increased on the one hand by anode orifice plate, heat is derived by fin in time, on the other hand also can by the distance between the limitation in height fin of anode orifice plate 66; Multiple water conservancy diversion projection 65 and spacing bending 69 are set on a heat sink, the effect of water conservancy diversion projection 65 is the air change flow directions making to flow through gap between fin, water conservancy diversion projection centre position arranges pod apertures 67, thus enable anode of magnetron back flow through more air, to improve the exchange capability of heat of fin, spacing bending 69 stamps out through hole on the surface of fin, and a part of fin is bent downwards along through hole, thus between adjacent fin, play the effect limiting spacing; The left and right sides of fin is sheared respectively and bending process goes out multiple radiator shutter 63, multiple fin is the entirety be made up of same metallic plate, be interconnected by radiator shutter 63 between abutting fins, and the adjacent heat radiation blade bent direction of fin is contrary, the overbending direction of abutting fins anode orifice plate is contrary, the corresponding overbending direction that is contrary, the spacing bending of abutting fins of projection direction that is abutting fins water conservancy diversion projection is corresponding contrary; Multiple fin be connected as a single entity bends successively along the junction of radiator shutter, the radiator shutter overbending direction of each fin after making bending, the overbending direction of anode orifice plate, the projection direction of water conservancy diversion projection are corresponding identical separately respectively along both sides with the overbending direction of spacing bending, and leaving same distance between abutting fins, multiple fin 61 forms the coaxial groups of fins of anode hole.The bending of the fin that same fin two ends connect is towards the opposite, and the fin at two ends is laid respectively at above and below intermediate radiator sheet after bending.
The top bending of radiator shutter 63 forms fixing bending 64, arranges end face connecting plate 68 between the fixing bending 64 of interconnective radiator shutter, connects two radiator shutters by end face connecting plate 68.When fin is installed, need apply downward pressure to it, make radiator shutter generation deformation enter in the shell of magnetron, the inwall that lower casing is withstood in fixing bending makes fin holding position fix.
Between the radiator shutter that fixing bending 64 spacing is less, arrange end face connecting plate 68, the radiator shutter that fixing bending spacing is longer is independent separately, and the radiator shutter that above-mentioned spacing is longer after the bending of adjacent fin is parallel to each other.The side of each fin forms three radiator shutters in the present embodiment, two radiator shutters being positioned at outside are connected with the radiator shutter of another fin correspondence position respectively, and that radiator shutter be positioned in the middle of above-mentioned two radiator shutters bends towards different directions, do not connect each other.
The width of end face connecting plate 68 is identical with the radiator shutter width of connection, and distance between the height of end face connecting plate with abutting fins in above-mentioned groups of fins is identical, and end face connecting plate plays the effect of the spacing of restriction fin equally.
Radiator shutter arranges the opening 71 running through fixing bending and connecting plate, enables outside air flow into the space between fin by above-mentioned opening or flow out between fin.
The sleeve 70 be made up of high heat transfer coefficient material is through the anode hole 62 of all fin 61 in above-mentioned groups of fins, and the inwall of sleeve and the anode casing close contact of magnetron, the outer wall of sleeve is with the mutual close contact of anode orifice plate of fin.By thermal transmission coefficient high material the heat on anode of magnetron is passed to fast on each fin in groups of fins, thus improves heat conduction and heat radiation ability.
In the fin of anode of magnetron of the present invention, multiple fin is formed by the metallic plate time processing that a slice is identical, adjacent fin is interconnected by radiator shutter, the groups of fins that fin is parallel to each other is formed successively after bending, make the anode of magnetron through gelled anode hole when mounted, thus can disposable all fin be completed fixing simultaneously, simplify production stage, improve production efficiency.In addition, arrange simultaneously through the sleeve of each anode hole of groups of fins, by sleeve, the heat of anode of magnetron is transferred on a fin in time, thus increase the area of dissipation of fin, utilize sleeve can expand space between abutting fins further, when external air flow is out-of-date can ensure each radiator shutter can fully and air carry out heat exchange, therefore improve the heat-exchange capacity of the fin of anode of magnetron leeward side, reduce the temperature of anode of magnetron, the service behaviour of magnetron is improved.
The above, it is only preferred embodiment of the present invention, not any pro forma restriction is done to the present invention, although the present invention with preferred embodiment openly as above, but, and be not used to limit the present invention, any those skilled in the art, do not departing within the scope of technical solution of the present invention, certainly the technology contents of announcement can be utilized to make a little change or modification, become the Equivalent embodiments of equivalent variations, in every case be the content not departing from technical solution of the present invention, according to any simple modification that technical spirit of the present invention is done above embodiment, equivalent variations and modification, all belong in the scope of technical solution of the present invention.
Claims (6)
1. a fin for anode of magnetron, is stamped to form by metallic plate is one-body molded, in the middle part of fin, leaves anode hole, for assembling the anode casing of magnetron; Fin around anode hole position is bent to form anode orifice plate; Multiple water conservancy diversion projection and spacing bending are set on a heat sink; The left and right sides of fin is sheared respectively and bending process goes out multiple radiator shutter, it is characterized in that: multiple fin is the entirety be made up of same metallic plate, be interconnected by radiator shutter between abutting fins, and the adjacent heat radiation blade bent direction of fin is contrary, the overbending direction of abutting fins anode orifice plate is contrary, the corresponding overbending direction that is contrary, the spacing bending of abutting fins of projection direction that is abutting fins water conservancy diversion projection is corresponding contrary; Multiple fin be connected as a single entity bends successively along the junction of radiator shutter, the radiator shutter overbending direction of each fin after making bending, the overbending direction of anode orifice plate, the projection direction of water conservancy diversion projection are corresponding identical separately respectively along both sides with the overbending direction of spacing bending, and leaving same distance between abutting fins, multiple fin forms the coaxial groups of fins of anode hole.
2. the fin of anode of magnetron according to claim 1, is characterized in that: the top bending of radiator shutter forms fixing bending, arranges connecting plate between the fixing bending of interconnective radiator shutter, connects two radiator shutters by connecting plate.
3. the fin of anode of magnetron according to claim 2, is characterized in that: between the radiator shutter that fixing bending spacing is less, arrange connecting plate.
4. the fin of anode of magnetron according to claim 2, is characterized in that: the width of connecting plate is identical with the radiator shutter width of connection, and distance between the height of connecting plate with abutting fins in above-mentioned groups of fins is identical.
5. the fin of anode of magnetron according to claim 1, is characterized in that: on radiator shutter, arrange the opening running through fixing bending and connecting plate.
6. the fin of anode of magnetron according to claim 1, it is characterized in that: the sleeve be made up of high heat transfer coefficient material is through gelled anode hole in above-mentioned groups of fins, the inwall of sleeve and the anode casing close contact of magnetron, the outer wall of sleeve is with the mutual close contact of anode orifice plate of fin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110150103.2A CN102820192B (en) | 2011-06-07 | 2011-06-07 | The fin of anode of magnetron |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110150103.2A CN102820192B (en) | 2011-06-07 | 2011-06-07 | The fin of anode of magnetron |
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| Publication Number | Publication Date |
|---|---|
| CN102820192A CN102820192A (en) | 2012-12-12 |
| CN102820192B true CN102820192B (en) | 2016-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110150103.2A Expired - Fee Related CN102820192B (en) | 2011-06-07 | 2011-06-07 | The fin of anode of magnetron |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106653521A (en) * | 2016-12-21 | 2017-05-10 | 广东威特真空电子制造有限公司 | Magnetron |
| CN108389765A (en) * | 2018-04-10 | 2018-08-10 | 广东威特真空电子制造有限公司 | Radiating subassembly for magnetron and the magnetron with it |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5351166A (en) * | 1991-12-30 | 1994-09-27 | Goldstar Co., Ltd. | Cooling apparatus of magnetrons |
| KR20060021585A (en) * | 2004-09-03 | 2006-03-08 | 엘지전자 주식회사 | An cooling fin of magnetron |
| CN101728177A (en) * | 2008-10-29 | 2010-06-09 | 乐金电子(天津)电器有限公司 | radiating fin of magnetron |
| CN101728175A (en) * | 2008-10-29 | 2010-06-09 | 乐金电子(天津)电器有限公司 | Radiating fin of anode of magnetron |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3379463B2 (en) * | 1999-02-19 | 2003-02-24 | 松下電器産業株式会社 | Magnetron equipment |
-
2011
- 2011-06-07 CN CN201110150103.2A patent/CN102820192B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5351166A (en) * | 1991-12-30 | 1994-09-27 | Goldstar Co., Ltd. | Cooling apparatus of magnetrons |
| KR20060021585A (en) * | 2004-09-03 | 2006-03-08 | 엘지전자 주식회사 | An cooling fin of magnetron |
| CN101728177A (en) * | 2008-10-29 | 2010-06-09 | 乐金电子(天津)电器有限公司 | radiating fin of magnetron |
| CN101728175A (en) * | 2008-10-29 | 2010-06-09 | 乐金电子(天津)电器有限公司 | Radiating fin of anode of magnetron |
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| Publication number | Publication date |
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| CN102820192A (en) | 2012-12-12 |
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