CN208433364U - Magnetron for microwave oven - Google Patents
Magnetron for microwave oven Download PDFInfo
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- CN208433364U CN208433364U CN201821147009.5U CN201821147009U CN208433364U CN 208433364 U CN208433364 U CN 208433364U CN 201821147009 U CN201821147009 U CN 201821147009U CN 208433364 U CN208433364 U CN 208433364U
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- magnetron
- microwave oven
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- tube core
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Abstract
The utility model relates to electromagnetism fields, more specifically, it is related to a kind of magnetron for microwave oven, the magnetron for microwave oven, including tube core component and pole pieces, the tube core component is mounted on pole pieces medium position, it is integrated, the tube core component includes anode assemblies, cathode assembly and functional unit, described functional unit one end and anode assemblies against, the other end and cathode assembly against, the functional unit includes energy follower, bobbin and exhaust pipe, the energy follower is sheathed on barrel inner, the exhaust pipe is connect with bobbin, and it leans with energy follower, the device is novel in design, pass through design interaction space and chokes set, resonant cavity, to improve the microwave efficiency of furnace, Electro Magnetic Compatibility performance.
Description
Technical field
The utility model relates to electromagnetism fields, more particularly, to a kind of magnetron for microwave oven.
Background technique
It is well known that for the continuous wave magnetron of heating, it is the most outstanding to require to be that operating voltage is as low as possible, resist
It is strong to load changing capability, high-efficient, output power, power supply is simple, and the service life will grow (1000 hours or more), for the people
The considerations of with cost, structure design is opposite to be simplified, at low cost, and the features such as small is wanted in microwave power leakage.In many cases, one
It is mutually restrained between a little technical parameters, such as contradiction, higher frequency between demanding efficiency and the lower anode voltage of needs
Contradiction etc. between rate stability and magnetron efficiencies and magnetron output power, we must catch principal contradiction, balance each parameter
Between relationship.Nowadays magnetron for microwave oven technology has approached maturation, and exploitation adapts to the demand of civilian magnetron production, production
The magnetron of energy-efficient low noise high stability is our research direction, it is therefore proposed that it is a kind of solve the above problems it is micro-
Wave furnace is actually necessary with magnetron.
Utility model content
The utility model in order to overcome at least one of the drawbacks of the prior art described above (deficiency), provides a kind of micro-wave oven use
Magnetron.
In order to solve the above technical problems, the technical solution of the utility model is as follows: a kind of magnetron for microwave oven, including pipe
Core component and pole pieces, the tube core component are mounted on pole pieces medium position, are integrated, the tube core component
Including anode assemblies, cathode assembly and functional unit, described functional unit one end and anode assemblies are against the other end and cathode sets
Part against, the functional unit includes energy follower, bobbin and exhaust pipe, and the energy follower is sheathed on barrel inner,
The exhaust pipe is connect with bobbin, and is leant with energy follower, and the device is novel in design, by design interaction space and
Chokes set, resonant cavity, to improve the microwave efficiency of furnace, Electro Magnetic Compatibility performance.Energy follower is institute in interacting space
The microwave energy of generation is transported to the device that goes of load, the effect of energy output device be it is lossless, no breakdown by microwave, protect
The vacuum sealing of pipe is demonstrate,proved, while also to be accomplished convenient for being connected with external system.
Further, the anode assemblies include anode canister and anode plate, and the anode plate is mounted on inside anode canister.Sun
Pole is one of main composition of magnetron, it constitutes the space of electronics Yu high-frequency electromagnetic field interactions together with cathode.In perseverance
Under the action of fixed-field and steady electric field, electronics completes the task of energy conversion in this space.The anode of magnetron remove with it is general
The anode of logical pole pipe is equally collected outside electronics, also plays conclusive effect to the frequency of oscillation of electromagnetic field of high frequency.Anode plate
It is made of the metal material (such as oxygen-free copper) of well conducting, and is equipped with multiple resonant cavities, the number of resonant cavity must be even number, pipe
The working frequency more high pitched tune number of son is more, and the pattern of anode cavity is often hole-and-slot, sector and slot fan type, each on anode
A small resonant cavity is equivalent to a 2C oscillation circuit in parallel.By taking slot fan type chamber as an example, it is believed that the main structure of the slot part of chamber
At the capacitor of oscillation circuit, and the inductance of its sector portion main composition oscillation circuit, in addition, due to the electricity after energy exchange
Son also has certain energy, these electronics, which stamp anode, increases temperature of anode, and the electronics that anode is collected is more, and (i.e. electric current is got over
Greatly) or the energy of electronics is bigger (energy conversion rate is lower), and temperature of anode is higher, and therefore, anode need to have good heat radiation energy
Power.
Further, the cathode assembly include support body, K side pipe, lower end cap assembly, filament, long lead with it is upper
End cap assembly, the K side pipe and long lead are separately mounted to support body both ends, after lower end cap assembly and upper end cap assembly lid close
It is fixed at the top of support body, filament is mounted on inside support body, and the filament is connect with long lead.The cathode of magnetron is
The emitter of electronics, and be a component part of interacting space.Working characteristics and service life of the performance of cathode to pipe
It influences greatly, to be considered as the heart of entire pipe, cathode heated current is big, it is desirable that cathode leg wants short and thick, and coupling part is wanted
Contact is good.Temperature is very high when the cathode leg work of high power tube, commonly uses forced air cooling heat dissipation.Cathode connects when magnetron works
Negative high voltage, therefore lead portion should have good insulation performance and be able to satisfy vacuum-packed requirement.To prevent because of electron back bombardment
And anode is overheated, and it should be by regulation reduction cathode current to prolong the service life after magnetron the operation is stable, cathode diameter 3.9
mm。
Further, the pole pieces include upper magnetic pole and lower magnetic pole, and the upper magnetic pole is mounted on lower magnetic pole side.
The device generates magnetic field with electromagnet, and tube core and electromagnet be used cooperatively, and has upper and lower pole shoe in tube core, with fix magnetic gap away from
From.It, can be very easily by the size of change magnetic field strength, to adjust output power and working frequency when magnetron works.Separately
Outside, anode current feed-in electromagnetic wire packet can also be improved to the stability of pipe work, magnetic pole is symmetrical structure, magnetic pole
Height is 7-7.05 mm.
Further, output window assembly is additionally provided in the tube core component.It exports window assembly and uses ceramic structure, there is matter
The advantages that amount is light, rapid heat dissipation.
Further, the output window assembly includes A side pipe, dead ring, antenna cap, and dead ring is sheathed on antenna crown
Portion, antenna cap are mounted on A side pipe.
Further, the anode plate length is 13.4-13.42 mm.
Further, the tube core member height is 27-27.5 mm.
Compared with prior art, the beneficial effect of technical solutions of the utility model is:
(1) magnetron for microwave oven disclosed by the utility model, the device are novel in design, by design interaction space and
Chokes set, resonant cavity, to improve the microwave efficiency of furnace, Electro Magnetic Compatibility performance.
(2) magnetron for microwave oven disclosed by the utility model, output window assembly use ceramic structure, have light weight,
The advantages that rapid heat dissipation.
(3) magnetron for microwave oven disclosed by the utility model, simple and reasonable, high reliability, high efficiency, low noise
Sound, low-voltage, high performance-price ratio magnetron at low cost.
(4) magnetron for microwave oven disclosed by the utility model, low production cost are suitble to mass production.
Detailed description of the invention
Fig. 1 is magnetron for microwave oven schematic diagram of internal structure in the utility model；
Fig. 2 is magnetron for microwave oven enlarged structure schematic diagram in the utility model.
In Fig. 1-2,1 it is anode plate, 2 is anode canister, 3 is support body, 4 is K side pipe, 5 is long lead, 6 is upper end cap
Component, 7 be lower end cap assembly, 8 be filament, 9 upper magnetic poles, 10 be lower magnetic pole, 11 be functional unit, 12 be A side pipe, 13 be insulation
Ring, 14 be exhaust pipe, 15 be antenna cap, 16 be tube core component, 17 be pole pieces, 18 be energy follower, 19 be bobbin.
Specific embodiment
The attached figures are only used for illustrative purposes and cannot be understood as limitating the patent；In order to better illustrate this embodiment, attached
Scheme certain components to have omission, zoom in or out, does not represent the size of actual product；To those skilled in the art,
The omitting of some known structures and their instructions in the attached drawings are understandable.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, be also possible to be indirectly connected with by intermediary, it can be with
Say the connection inside two elements.For the ordinary skill in the art, it can understand that above-mentioned term exists with concrete condition
The concrete meaning of the utility model.The technical solution of the utility model is done further with reference to the accompanying drawings and examples
It is bright.
As shown in Figs. 1-2, a kind of magnetron for microwave oven, including tube core component 16 and pole pieces 17, tube core component peace
It mounted in pole pieces medium position, is integrated, tube core component includes anode assemblies, cathode assembly and functional unit, function
Energy component one end and anode assemblies are against the other end and cathode assembly are against functional unit includes energy follower 18, bobbin 19
With exhaust pipe 14, energy follower is sheathed on barrel inner, and exhaust pipe is connect with bobbin, and leans with energy follower, should
Device is novel in design, passes through design interaction space and chokes set, resonant cavity, to improve the microwave efficiency of furnace, Electro Magnetic Compatibility
Energy.Anode assemblies include anode canister 2 and anode plate 1, and anode plate is mounted on inside anode canister.Anode is the main composition of magnetron
One of, it constitutes the space of electronics Yu high-frequency electromagnetic field interactions together with cathode.Work in stationary magnetic field and steady electric field
Under, electronics completes the task of energy conversion in this space.The anode of magnetron is removed and is received as the anode of common pole pipe
Outside set electron, conclusive effect also is played to the frequency of oscillation of electromagnetic field of high frequency.Anode plate by well conducting metal material
(such as oxygen-free copper) is made, and is equipped with multiple resonant cavities, and the number of resonant cavity must be even number, and the working frequency of pipe gets over high pitched tune number
More, the pattern of anode cavity is often hole-and-slot, sector and slot fan type, each small resonant cavity on anode is equivalent to one
2C oscillation circuit in parallel.By taking slot fan type chamber as an example, it is believed that the capacitor of the slot part main composition oscillation circuit of chamber, and its
The inductance of sector portion main composition oscillation circuit, in addition, since the electronics after energy exchange also has certain energy, this
A little electronics, which stamp anode, increases temperature of anode, and the energy of electronics more (i.e. electric current is bigger) or electronics that anode is collected is bigger
(energy conversion rate is lower), temperature of anode is higher, and therefore, anode need to have good heat-sinking capability.Cathode assembly includes supporting this
Body 3, K side pipe 4, lower end cap assembly 7, filament 8, long lead 5 and upper end cap assembly 6, K side pipe are separately mounted to support with long lead
Ontology both ends, lower end cap assembly and upper end cap assembly lid are fixed at the top of support body after closing, and filament is mounted in support body
Portion, filament are connect with long lead.Cathode, that is, electronics emitter of magnetron, and be a composition portion of interacting space
Point.The performance of cathode is very big to the working characteristics and aging effects of pipe, is considered as the heart of entire pipe, cathode heated current
Greatly, it is desirable that cathode leg wants short and thick, and coupling part will contact well.Temperature is very high when the cathode leg work of high power tube,
Common forced air cooling heat dissipation.Cathode connects negative high voltage when magnetron works, therefore lead portion should have good insulation performance and energy
Meet vacuum-packed requirement.To prevent from overheating anode because of electron back bombardment, should be reduced by regulation after magnetron the operation is stable
For cathode current to prolong the service life, cathode diameter is 3.9 mm.Pole pieces include upper magnetic pole 9 and lower magnetic pole 10, upper magnetic pole
It is mounted on lower magnetic pole side.The device generates magnetic field with electromagnet, and tube core and electromagnet are used cooperatively, and has upper and lower pole in tube core
Boots, to fix the distance of magnetic gap.It, can be very easily by the size of change magnetic field strength, to adjust output when magnetron works
Power and working frequency.Furthermore it is also possible to which anode current feed-in electromagnetic wire packet to be improved to the stability of pipe work, magnetic pole is
Symmetrical structure, magnetic pole height are 7-7.05 mm.Output window assembly is additionally provided in tube core component.Window assembly is exported using pottery
Porcelain structure has many advantages, such as light weight, rapid heat dissipation.Exporting window assembly includes A side pipe 12, dead ring 13, antenna cap 15, dead ring
It is sheathed at the top of antenna cap, antenna cap is mounted on A side pipe.Anode plate length is 13.4-13.42 mm, tube core member height
For 27-27.5 mm.
In figure, description positional relationship only for illustration, should not be understood as the limitation to this patent；Obviously, this reality
It is merely examples for clearly illustrating the present invention with novel above-described embodiment, and is not to the utility model
Embodiment restriction.For those of ordinary skill in the art, it can also make on the basis of the above description
Other various forms of variations or variation.There is no necessity and possibility to exhaust all the enbodiments.It is all practical new at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model right and wants within the spirit and principle of type
Within the protection scope asked.
Claims (8)
1. a kind of magnetron for microwave oven, including tube core component and pole pieces, the tube core component is mounted in pole pieces
Portion position, is integrated, which is characterized in that the tube core component includes anode assemblies, cathode assembly and functional unit, institute
State functional unit one end and anode assemblies against, the other end and cathode assembly against, the functional unit include energy follower,
Bobbin and exhaust pipe, the energy follower are sheathed on barrel inner, and the exhaust pipe is connect with bobbin, and with energy follower
It leans.
2. magnetron for microwave oven according to claim 1, which is characterized in that the anode assemblies include anode canister and sun
Pole plate, the anode plate are mounted on inside anode canister.
3. magnetron for microwave oven according to claim 1, which is characterized in that the cathode assembly includes support body, K
Side pipe, lower end cap assembly, filament, long lead and upper end cap assembly, the K side pipe and long lead are separately mounted to support body two
End, lower end cap assembly and upper end cap assembly lid are fixed at the top of support body after closing, and filament is mounted on inside support body, described
Filament is connect with long lead.
4. magnetron for microwave oven according to claim 1, which is characterized in that the pole pieces include upper magnetic pole under
Magnetic pole, the upper magnetic pole are mounted on lower magnetic pole side.
5. magnetron for microwave oven according to claim 1, which is characterized in that be additionally provided with output window in the tube core component
Component.
6. magnetron for microwave oven according to claim 5, which is characterized in that the output window assembly include A side pipe, absolutely
Edge ring, antenna cap, dead ring are sheathed at the top of antenna cap, and antenna cap is mounted on A side pipe.
7. magnetron for microwave oven according to claim 2, which is characterized in that the anode plate length is 13.4-
13.42 mm。
8. magnetron for microwave oven according to claim 1, which is characterized in that the tube core member height is 27-27.5
mm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821147009.5U CN208433364U (en) | 2018-07-19 | 2018-07-19 | Magnetron for microwave oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821147009.5U CN208433364U (en) | 2018-07-19 | 2018-07-19 | Magnetron for microwave oven |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208433364U true CN208433364U (en) | 2019-01-25 |
Family
ID=65097261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821147009.5U Active CN208433364U (en) | 2018-07-19 | 2018-07-19 | Magnetron for microwave oven |
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| Country | Link |
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| CN (1) | CN208433364U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112238275A (en) * | 2020-08-07 | 2021-01-19 | 广东格兰仕微波炉电器制造有限公司 | Magnetron exhaust pipe assembly assembling process |
| WO2024065913A1 (en) * | 2022-09-29 | 2024-04-04 | 广东威特真空电子制造有限公司 | Magnetron and microwave heating device |
-
2018
- 2018-07-19 CN CN201821147009.5U patent/CN208433364U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112238275A (en) * | 2020-08-07 | 2021-01-19 | 广东格兰仕微波炉电器制造有限公司 | Magnetron exhaust pipe assembly assembling process |
| CN112238275B (en) * | 2020-08-07 | 2022-05-10 | 广东格兰仕微波炉电器制造有限公司 | Magnetron exhaust pipe assembly assembling process |
| WO2024065913A1 (en) * | 2022-09-29 | 2024-04-04 | 广东威特真空电子制造有限公司 | Magnetron and microwave heating device |
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