CN102820192A - Radiating fin of anode of magnetron - Google Patents
Radiating fin of anode of magnetron Download PDFInfo
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- CN102820192A CN102820192A CN2011101501032A CN201110150103A CN102820192A CN 102820192 A CN102820192 A CN 102820192A CN 2011101501032 A CN2011101501032 A CN 2011101501032A CN 201110150103 A CN201110150103 A CN 201110150103A CN 102820192 A CN102820192 A CN 102820192A
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- fin
- anode
- magnetron
- bending
- radiator shutter
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Abstract
Disclosed is a radiating fin of an anode of a magnetron. An anode pore is reserved in the middle of the radiating fin, an anode pore plate is formed around the anode pore, a plurality of radiating blades are respectively processed on the left side and the right side of the radiating fin by shearing and bending, a plurality of radiating fins are integrally manufactured by the same metal plate, the adjacent radiating fins are connected with one another by radiating blades thereof, and bending directions of the radiating blades, bending directions of anode pore plates, protruding directions of flow guiding protrusions and bending directions of limiting bends of the adjacent radiating fins are respectively and correspondingly opposite to one another. The radiating fins connected integrally are sequentially bent along joints among the radiating blades, so that identical distances are reserved among the adjacent radiating fins, and the radiating fins form a radiating fin group with coaxial anode pores. The radiating fin has the advantages that heat exchange capacity of the anode of the magnetron is improved, the temperature of the anode of the magnetron is reduced, and the work performance of the magnetron is enhanced.
Description
Technical field
The invention belongs to the technical field of magnetron, be specifically related to a kind of production and install simpler, 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 fin of the anode of magnetron of prior art; Fig. 3 is the vertical view of fin of the anode of magnetron of prior art; Fig. 4 is the front view of fin after assembling of the anode of magnetron of prior art.
Like Fig. 1-shown in Figure 4, magnetron mainly includes: positive electrode portion; Negative electrode portion; Magnetic pole piece; The microwave emission part.Positive electrode portion is formed with a plurality of radial blades 12 by the anode casing 11 of drum shape on the inwall of anode casing 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 anode casing 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, in the upper end of last magnetic pole 20 and the lower end of lower magnetic pole 21 magnetite 22 to be installed, magnetite is circulus and certain thickness is arranged.
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 fin 61 at action space; Go back the parts such as shell 19 that 61 protections of handlebar fin shed at heat inner and that 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 magnetite 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 magnetite 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.
But, there is following problem in the prior art:
In the fin of the anode of magnetron of prior art, fin directly contacts with the anode of magnetron shell, forms groups of fins by the fin of a plurality of separation, and the space between the adjacent fin is less.In magnetron when work,, extraneous air flows through the space between fin and carries out heat exchange with fin, and inter fin space is lower from the less air velocity that makes; The air that flow through the rear side radiator shutter this moment has been the air that carried out heat exchange with the front side radiator shutter, and the temperature of air is higher, and the rear side radiator shutter can't be fully with the heat transferred air; Cause heat to concentrate on the fin, simultaneously, the heat-exchange capacity when air flows through anode of magnetron also depends on the size of area of dissipation; The less actual area of dissipation of fin of spacing is less; Air-flow can't be walked around anode casing and come leeward side, can only in small range, accomplish the heat exchange of air and anode of magnetron, the leeward side of anode of magnetron is become " dead band "; Thereby cause the heat-sinking capability of magnetron relatively poor, be unfavorable for system radiating.In addition, when installing a plurality of different radiating sheets need be installed successively, cause production process comparatively complicated owing to magnetron.
Summary of the invention
The present invention is simpler for solving the technical problem that exists in the prior art a kind of productions is provided and installing, the fin of the anode of magnetron of radiating effect optimization.
The technical scheme that the present invention takes for the technical problem that exists in the 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, leaves anode hole at the fin middle part, is used to assemble the anode casing of magnetron; Fin around the anode hole position is bent to form the anode orifice plate; A plurality of water conservancy diversion projections and spacing bending are set on fin; Shear respectively the left and right sides of fin and bending process goes out a plurality of radiator shutters; A plurality of fin are an integral body of being processed by same metallic plate; Interconnect through radiator shutter between the adjacent fin, and the radiator shutter overbending direction of adjacent fin, the overbending direction of anode orifice plate, the projection direction of water conservancy diversion projection and the overbending direction of spacing bending are distinguished respective opposite separately; A plurality of fin that are connected as a single entity bend along the junction of radiator shutter successively; Make the radiator shutter overbending direction of back each fin of bending, the overbending direction of anode orifice plate, the projection direction of water conservancy diversion projection and the overbending direction of spacing bending distinguish corresponding separately identical; And leave same distance between the adjacent fin, a plurality of fin form 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 fixedly bending, interconnective radiator shutter connecting plate fixedly is set between the bending, connect two radiator shutters through connecting plate.
Fixedly between the less radiator shutter of distance connecting plate is being set between bending.
The width of described connecting plate is identical with the radiator shutter width of connection, and the distance between the adjacent fin is identical in the height of connecting plate and the above-mentioned groups of fins.
The opening that runs through fixedly bending and connecting plate is set on radiator shutter.
The sleeve of being processed by the high heat transfer coefficient material passes the anode hole of all fin in the above-mentioned groups of fins, and the inwall of sleeve closely contacts with the anode casing of magnetron, and the outer wall of sleeve is with the anode orifice plate closely contact each other of fin.
Advantage and good effect that the present invention has are:
In the fin of anode of magnetron of the present invention; A plurality of fin are formed by the identical metallic plate time processing of a slice, and adjacent fin interconnects through radiator shutter, form the groups of fins that fin is parallel to each other successively after the bending; Make the anode of magnetron pass the anode hole of all fin when mounted; Thereby can disposable all fin be accomplished simultaneously fixingly, simplify production stage, improve production efficiency.In addition; The sleeve of each anode hole that passes groups of fins simultaneously is set; Through sleeve the heat of anode of magnetron in time is transferred on the fin, thereby has increased the area of dissipation of fin, utilize sleeve can further enlarge the space between the adjacent fin; When extraneous air flows through, can guarantee each radiator shutter can be fully and air carry out heat exchange; Therefore improved the heat-exchange capacity of the fin of anode of magnetron leeward side, reduced the temperature of anode of magnetron, the service behaviour of magnetron is improved.
Description of drawings
Fig. 1 is the magnetron structures longitudinal section of prior art;
Fig. 2 is the structural representation of fin of the anode of magnetron of prior art;
Fig. 3 is the vertical view of fin of the anode of magnetron of prior art;
Fig. 4 is the front view of fin after assembling of the anode of magnetron of prior art;
Fig. 5 is the sketch map 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 accompanying drawing and embodiment the present invention is carried out detailed explanation.
For the ease of the present invention will be described, the nouns of locality such as the front, rear, left and right in the specification all are that the front view direction of fin after assembling with anode of magnetron is as the criterion.
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 at fin 61 middle parts, is used to assemble the anode casing of magnetron; Fin around the anode hole position is bent to form anode orifice plate 66; Increase the contact area of fin and thermal source on the one hand through the anode orifice plate; Fin is in time derived heat, on the other hand also can be through the distance between the limitation in height fin of anode orifice plate 66; A plurality of water conservancy diversion projections 65 and spacing bending 69 are set on fin; The effect of water conservancy diversion projection 65 is the air that flows through slit between the fin to be changed flow to, and water conservancy diversion projection centre position is provided with pod apertures 67, thereby makes the anode of magnetron back can flow through more air; To improve the exchange capability of heat of fin; Spacing bending 69 is to stamp out through hole on the surface of fin, and a part of fin is bent downwards along through hole, thereby between adjacent fin, plays the effect that limits spacing; Shear respectively the left and right sides of fin and bending process goes out a plurality of radiator shutters 63; A plurality of fin are an integral body of being processed by same metallic plate; Interconnect through radiator shutter 63 between the adjacent fin; And the projection direction of the radiator shutter overbending direction of adjacent fin, the overbending direction of anode orifice plate, water conservancy diversion projection and the overbending direction of spacing bending be respective opposite separately respectively, after bending, makes adjacent fin each several part position corresponding and be parallel to each other; A plurality of fin that are connected as a single entity bend along the junction of radiator shutter successively; Make the radiator shutter overbending direction of back each fin of bending, the overbending direction of anode orifice plate, the projection direction of water conservancy diversion projection and the overbending direction of spacing bending distinguish corresponding separately identical; And leave same distance between the adjacent fin, a plurality of fin 61 form the coaxial groups of fins of anode hole.The bending of the fin that same fin two ends connect is towards on the contrary, make the fin at two ends after bending, lay respectively in the middle of the above and below of fin.
The top bending of radiator shutter 63 forms fixedly bending 64, between the fixedly bending 64 of interconnective radiator shutter connecting plate 70 is set, and connects two radiator shutters through connecting plate 70.When fin is installed, need apply downward pressure to it, radiator shutter generation deformation is entered in the shell of magnetron, fixedly the bending inwall that withstands lower casing is fixed the fin holding position.
Between the less radiator shutter of fixing 64 distances of bending, connecting plate 70 is set, the radiator shutter that fixedly distance is long between bending is independent separately, is parallel to each other at the adjacent fin bending back long radiator shutter of above-mentioned spacing.A side of each fin all forms three radiator shutters in the present embodiment; Two radiator shutters that are positioned at the outside are connected with the radiator shutter of another fin correspondence position respectively; And that radiator shutter that is positioned in the middle of above-mentioned two radiator shutters bends towards different directions, does not connect each other.
The width of connecting plate 70 is identical with the radiator shutter width of connection, and the distance between the adjacent fin is identical in the height of connecting plate and the above-mentioned groups of fins, and connecting plate plays the effect of distance between the restriction fin equally.
The opening 71 that runs through fixedly bending and connecting plate is set on radiator shutter, air outside can perhaps be flowed out between the fin through the space that above-mentioned opening flows between the fin.
The sleeve of being processed by the high heat transfer coefficient material 70 passes the anode hole 62 of all fin 61 in the above-mentioned groups of fins, and the inwall of sleeve closely contacts with the anode casing of magnetron, and the outer wall of sleeve is with the anode orifice plate closely contact each other of fin.The material high through thermal transmission coefficient is passed to the heat on the anode of magnetron on each fin in the groups of fins fast, thereby improved the heat conduction and heat radiation ability.
In the fin of anode of magnetron of the present invention; A plurality of fin are formed by the identical metallic plate time processing of a slice, and adjacent fin interconnects through radiator shutter, form the groups of fins that fin is parallel to each other successively after the bending; Make the anode of magnetron pass the anode hole of all fin when mounted; Thereby can disposable all fin be accomplished simultaneously fixingly, simplify production stage, improve production efficiency.In addition; The sleeve of each anode hole that passes groups of fins simultaneously is set; Through sleeve the heat of anode of magnetron in time is transferred on the fin, thereby has increased the area of dissipation of fin, utilize sleeve can further enlarge the space between the adjacent fin; When extraneous air flows through, can guarantee each radiator shutter can be fully and air carry out heat exchange; Therefore improved the heat-exchange capacity of the fin of anode of magnetron leeward side, reduced the temperature of anode of magnetron, the service behaviour of magnetron is improved.
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 (6)
1. the fin of an anode of magnetron is stamped to form by metallic plate is one-body molded, leaves anode hole at the fin middle part, is used to assemble the anode casing of magnetron; Fin around the anode hole position is bent to form the anode orifice plate; A plurality of water conservancy diversion projections and spacing bending are set on fin; Shear respectively the left and right sides of fin and bending process goes out a plurality of radiator shutters; It is characterized in that: a plurality of fin are an integral body of being processed by same metallic plate; Interconnect through radiator shutter between the adjacent fin, and the radiator shutter overbending direction of adjacent fin, the overbending direction of anode orifice plate, the projection direction of water conservancy diversion projection and the overbending direction of spacing bending are distinguished respective opposite separately; A plurality of fin that are connected as a single entity bend along the junction of radiator shutter successively; Make the radiator shutter overbending direction of back each fin of bending, the overbending direction of anode orifice plate, the projection direction of water conservancy diversion projection and the overbending direction of spacing bending distinguish corresponding separately identical; And leave same distance between the adjacent fin, a plurality of fin form the coaxial groups of fins of anode hole.
2. the fin of anode of magnetron according to claim 1, it is characterized in that: the top bending of radiator shutter forms fixedly bending, interconnective radiator shutter connecting plate fixedly is set between the bending, connect two radiator shutters through connecting plate.
3. the fin of anode of magnetron according to claim 2 is characterized in that: fixedly between the less radiator shutter of distance connecting plate is being set between bending.
4. the fin of anode of magnetron according to claim 2, it is characterized in that: the width of connecting plate is identical with the radiator shutter width of connection, and the distance between the adjacent fin is identical in the height of connecting plate and the above-mentioned groups of fins.
5. the fin of anode of magnetron according to claim 1 is characterized in that: the opening that runs through fixedly bending and connecting plate is set on radiator shutter.
6. the fin of anode of magnetron according to claim 1; It is characterized in that: the sleeve of being processed by the high heat transfer coefficient material passes the anode hole of all fin in the above-mentioned groups of fins; The inwall of sleeve closely contacts with the anode casing of magnetron, and the outer wall of sleeve is with the anode orifice plate closely contact each other 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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102820192A true CN102820192A (en) | 2012-12-12 |
| CN102820192B CN102820192B (en) | 2016-03-02 |
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Family Applications (1)
| 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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| Country | Link |
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| CN (1) | CN102820192B (en) |
Cited By (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 (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5351166A (en) * | 1991-12-30 | 1994-09-27 | Goldstar Co., Ltd. | Cooling apparatus of magnetrons |
| JP2000243304A (en) * | 1999-02-19 | 2000-09-08 | Matsushita Electronics Industry Corp | Magnetron device |
| KR20060021585A (en) * | 2004-09-03 | 2006-03-08 | 엘지전자 주식회사 | An cooling 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 |
| CN101728177A (en) * | 2008-10-29 | 2010-06-09 | 乐金电子(天津)电器有限公司 | radiating fin of magnetron |
-
2011
- 2011-06-07 CN CN201110150103.2A patent/CN102820192B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5351166A (en) * | 1991-12-30 | 1994-09-27 | Goldstar Co., Ltd. | Cooling apparatus of magnetrons |
| JP2000243304A (en) * | 1999-02-19 | 2000-09-08 | Matsushita Electronics Industry Corp | Magnetron device |
| KR20060021585A (en) * | 2004-09-03 | 2006-03-08 | 엘지전자 주식회사 | An cooling 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 |
| CN101728177A (en) * | 2008-10-29 | 2010-06-09 | 乐金电子(天津)电器有限公司 | radiating fin of magnetron |
Cited By (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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102820192B (en) | 2016-03-02 |
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Granted publication date: 20160302 Termination date: 20180607 |