CN106711000A - Magnetron shielding component - Google Patents
Magnetron shielding component Download PDFInfo
- Publication number
- CN106711000A CN106711000A CN201611200392.1A CN201611200392A CN106711000A CN 106711000 A CN106711000 A CN 106711000A CN 201611200392 A CN201611200392 A CN 201611200392A CN 106711000 A CN106711000 A CN 106711000A
- Authority
- CN
- China
- Prior art keywords
- shielding box
- magnetron
- insulating cell
- choking
- shield assembly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J23/00—Details of transit-time tubes of the types covered by group H01J25/00
- H01J23/36—Coupling devices having distributed capacitance and inductance, structurally associated with the tube, for introducing or removing wave energy
- H01J23/54—Filtering devices preventing unwanted frequencies or modes to be coupled to, or out of, the interaction circuit; Prevention of high frequency leakage in the environment
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J25/00—Transit-time tubes, e.g. klystrons, travelling-wave tubes, magnetrons
- H01J25/50—Magnetrons, i.e. tubes with a magnet system producing an H-field crossing the E-field
Landscapes
- Microwave Tubes (AREA)
Abstract
The invention relates to a magnetron shielding component. The magnetron shielding component comprises a shielding box body, a shielding box cover and a filtering component. The filtering component comprises a punched core capacitor and a choking coil. The choking coil is arranged on a boss in the shielding box body. The punched core capacitor passes through a side wall of the shielding box body and is connected to the choking coil. An insulation gasket covering an upper surface and/or a lower surface of the choking coil is arranged above and/or below the choking coil. The magnetron shielding component has a simple structure and low cost. Conditions that an upper end of the choking coil and the shielding box cover carry out sparking and a lower end of the choking coil and a shielding box bottom carry out sparking are effectively avoided. And heights of the shielding box body and the shielding box cover can be greatly reduced.
Description
Technical field
The invention belongs to microwave oven magnetic technical field of structures, more particularly to a kind of magnetron shield assembly.
Background technology
Magnetron is the radio tube for producing microwave, due to magnetron working characteristics in itself, in normal work, magnetic
Negative high voltage is connected on keyholed back plate filtering unit, to prevent producing sparking between filtering unit and shield assembly, needs to protect in design
Relative distance between card filtering unit and shield assembly.Needed as the continuous upgrading of magnetron and household microwave oven become more meticulous
Ask, the size of magnetron also develops towards miniaturization gradually, therefore also seems increasingly important to the dimensionally-optimised of shield assembly.
Fig. 7 is the profile of magnetron shield assembly in the prior art, and existing magnetron shield assembly is by shielding box body
2 ' and shielding box cover 1 ' constitute, filtering unit is made up of feed-through capacitor 3 ' with choking-winding 4 '.Wherein, feed-through capacitor 3 ' is riveted
On shielding box body 2 ', two output ends of feed-through capacitor 3 ' weld together with respective choking-winding 4 ' respectively, choke line
The other end of circle 4 ' is then welded on end leader 5 ', and magnetron other parts are transferred current to by end leader 5 ', has been welded
, be riveted to shielding box cover 1 ' on shielding box by riveting machine by Cheng Hou.
As shown in fig. 7, magnetron choking-winding 4 ' is with shielding box bottom is apart from L2 and choking-winding 4 ' and shields at present
Cover lid will ensure a minimum range apart from L1, it is to avoid electric spark phenomenon occurs.Therefore now with the screen of magnetron
Cover box and occupy magnetron overall height larger proportion, cause current magnetron to be highly difficult to reduce, so that the profit of microwave oven cavity
Accordingly reduced with rate, cause unnecessary space waste.
The content of the invention
(1) technical problem to be solved
The mesh of the present invention technical problem to be solved is：The shielding box of existing magnetron occupies the larger ratio of magnetron overall height
Example, the utilization rate of microwave oven cavity is accordingly reduced.
(2) technical scheme
In order to solve the above-mentioned technical problem, the invention provides a kind of magnetron shield assembly, including shielding box body, shielding
Lid and filtering unit, the filtering unit include feed-through capacitor and choking-winding；The choking-winding is arranged at the shielding
On boss in box body；The feed-through capacitor is connected through the side wall of the shielding box body with the choking-winding, and described wears
Core electric capacity is at least partially disposed at the external face of the shielding box；Wherein, the choking-winding above and or below is provided with covering institute
State the insulating cell of choking-winding upper surface and/or lower surface.
Wherein, when the insulating cell is arranged on the top of the choking-winding, the insulating cell be cap shape or
Stool shape.
Wherein, the shielding box cover is that flat pattern and its inwall are close to the insulating cell and are buckled with the shielding box body
Close.
Wherein, the insulating cell is connected with the side wall or cassette bottom of the shielding box body.
Wherein, when the insulating cell is arranged on the lower section of the choking-winding, the insulating cell is groove structure,
And centre is provided with the hole by the boss.
Wherein, when the insulating cell is arranged on the lower section of the choking-winding, the height of the boss is described less than working as
Insulating cell is arranged on the height of the boss during top of the choking-winding.
Wherein, the insulating cell is connected with the side wall or cassette bottom of the shielding box body.
Wherein, one end of the choking-winding is connected with the output end of the feed-through capacitor, on the other end and the boss
End leader connection.
Wherein, the insulating cell is high temperature resistant plastic material or ceramic material.
Present invention also offers a kind of magnetron, including above-mentioned magnetron shield assembly.
(3) beneficial effect
Magnetron shield assembly provided by the present invention, sets up an insulating cell in shielding box, its simple structure, into
This is cheap, and effectively prevent choking-winding upper end with shielding box cover sparking and choking-winding lower end and the sparking of shielding box bottom
The occurrence of.Simultaneously as the presence of insulating cell, shielding box body and shielding box cover can be substantially reduced in structure
Highly, for the realization of miniaturization provides technical guarantee, the competitiveness of product is improved.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is magnetron shield assembly first embodiment structural representation of the present invention；
Fig. 2 is magnetron shield assembly first embodiment insulating cell scheme of installation of the present invention；
Fig. 3 is magnetron shield assembly second embodiment structural representation of the present invention；
Fig. 4 is magnetron shield assembly second embodiment insulating cell installation diagram of the present invention；
Fig. 5 is magnetron shield assembly 3rd embodiment structural representation of the present invention；
Fig. 6 is magnetron shield assembly 3rd embodiment insulating cell structural representation of the present invention；
Fig. 7 is the structural representation of magnetron shield assembly in the prior art.
Reference：1. shielding box cover；2. box body is shielded；3. feed-through capacitor；4. choking-winding；5. insulating cell；6. convex
Platform；7. end leader；8. screw；9. fixed supporting leg；1 ', shielding box cover；2 ', shield box body；3 ', feed-through capacitor；4 ', choke line
Circle；5 ', end leader
Specific embodiment
With reference to Figure of description and embodiment, specific embodiment of the invention is described in further detail.With
Lower embodiment is merely to illustrate the present invention, but can not be used for limiting the scope of the present invention.
Embodiment one
As shown in figure 1, the magnetron shield assembly that the embodiment of the present invention one is provided, insulating cell 5 is placed in choking-winding 4
Surface, magnetron choking-winding temperature in normal work is 150-160 DEG C, and insulating cell can use high temperature plastic cement material,
So that the upper end of choking-winding 4 is completely isolated with shielding box cover 1, it is to avoid the generation of upper end sparking.
Due to the presence of insulating cell 5, it is to avoid the generation of sparking, shielding box cover 1 can make pressing treatment, in Fig. 1
Shielding box cover 1 compared to existing structure want it is short much and choking-winding 4 is identical with existing structure with the distance of shielding box bottom,
So the lower end of choking-winding 4 will not also produce sparking.But shielding box integrally reduces height, the so choking-winding 4 of gained
Upper end will be much smaller than existing structure apart from the inner distance of shielding box cover 1, greatly reduce magnetron whole height.
As shown in Fig. 2 after the completion of feed-through capacitor 3 and choking-winding 4 are assembled, by insulating cell 5 from choking-winding 4 just
Top is sunk down into shielding box, the breach on insulating cell 5 just across on feed-through capacitor 3, two apertures now just with screen
Two alignment that the riveted holes of box side four are arranged on the lower are covered, insulating cell 5 and shielding box is fixed finally by screw 8, tightened
.
In embodiment one, insulating cell 5 is cap shape, is covered in the surface of choking-winding 4.Certain insulating cell 5
Material also useful ceramics, can equally reach the purpose of insulation, but ceramics compared with plastic cement processing difficulties, and assembling is also difficult, peace
When mounted in shielding box, it is necessary to which being coordinated by bolts and nuts to connect.
Embodiment two
As shown in figure 3, the magnetron shield assembly that the embodiment of the present invention two is provided, its most of structure and the phase of embodiment one
Together, only the structure of insulating cell 5 is improved, will insulating cell 5 bottom of shielding box is fixed on screw 8.
As shown in figure 4, insulating cell 5 is cap shape, after the completion of feed-through capacitor 3 and choking-winding 4 are assembled, will insulate
Pad 5 is sunk down into shielding box from directly over choking-winding 4, the breach on insulating cell 5 just across on feed-through capacitor 3, Gu
Determine the aperture on supporting leg 9 just to be alignd with two in the riveted holes of shielding box bottom four, finally by screw 8 by insulating cell
5 fix with shielding box, tighten.The insulating cell 5 of the embodiment two is all easily assembled using plastic cement and ceramic material.
Embodiment three
As seen in figs. 5-6, the magnetron shield assembly that the embodiment of the present invention three is provided, itself and embodiment one and embodiment two
In the installation site of insulating cell 5 it is different, the chi in size of the upper end of choking-winding 4 away from the inner side of shielding box cover 1 and existing structure
It is very little the same, so choking-winding upper end will not produce sparking.But insulating cell 5 to be placed in the present embodiment the lower section of choking-winding 4,
The lower section of insulating cell 4 is avoided to produce sparking with shielding box bottom.The insulating cell 5 is groove structure, and centre is provided with and passes through
The hole of the boss 6.Because the presence of insulating cell, can be by the installation of the height, feed-through capacitor 3 of reduction shielding box body 2
Height realizes the height reduction of whole shield assembly with the height of boss 6.After change, choking-winding 4 and shielding box bottom
Size will be much smaller than existing structure in size, greatly reduce magnetron whole height.And then insulating cell 5 is by screw 8
The bottom of shielding box 61 is fixed on, completion is tightened.
The mounting means of the present embodiment is also differed with embodiment one and two, in the present embodiment, it is necessary to first install insulation
Pad 5, then has riveted feed-through capacitor 3, afterwards the step of it is identical with first two embodiment one and two.Insulation lining in the present embodiment
Pad 5 equally can be easy installation and reliable using ceramics and high temperature plastic cement material.
Example IV
On the basis of above-mentioned three kinds of embodiments, the present invention also proposes example IV, the magnetic control tube shield group in example IV
Part sets insulating cell 5 simultaneously above and below choking-winding 4, and it can simultaneously reduce shielding box cover 1 and shielding box body 2
Height.Further, the mounting means of the insulating cell 5 can select to use the installation side of embodiment one and embodiment three
The combination of formula, it is also possible to choose the combination of the mounting means of embodiment two and embodiment three.And then cause the upper end of choking-winding 4 away from
Existing structure will be much smaller than with a distance from the inner distance of shielding box cover 1 and choking-winding 4 and shielding box bottom, largely
Reduce magnetron whole height.
On the basis of above-described embodiment, present invention also offers a kind of micro-wave oven, including any of the above-described embodiment magnetic
Keyholed back plate shield assembly.
Magnetron shield assembly of the invention, sets up one or two insulating cell in shielding box, its simple structure, into
This is cheap, and effectively prevent choking-winding upper end with shielding box cover sparking and choking-winding lower end and the sparking of shielding box bottom
The occurrence of.Simultaneously as the presence of insulating cell, shielding box body and shielding box cover can be substantially reduced in structure
Highly, for the realization of miniaturization provides technical guarantee, the competitiveness of product is improved.
Embodiment of above is merely to illustrate the present invention, rather than limitation of the present invention.Although with reference to embodiment to this hair
It is bright to be described in detail, it will be understood by those within the art that, technical scheme is carried out various combinations,
Modification or equivalent, without departure from the spirit and scope of technical solution of the present invention, all should cover will in right of the invention
Ask in the middle of scope.
Claims (10)
1. a kind of magnetron shield assembly, it is characterised in that including shielding box body, shielding box cover and filtering unit, the filtering
Component includes feed-through capacitor and choking-winding；The choking-winding is arranged on the boss in the shielding box body；Wherein, it is described
The above and or below of choking-winding is provided with the upper surface and/or the insulating cell of lower surface for covering the choking-winding.
2. magnetron shield assembly according to claim 1, it is characterised in that when the insulating cell is arranged on described gripping
During the top of streamline circle, the insulating cell is cap shape or stool shape.
3. magnetron shield assembly according to claim 2, it is characterised in that the shielding box cover be flat pattern and its
Inwall is close to the insulating cell and is fastened with the shielding box body.
4. magnetron shield assembly according to claim 2, it is characterised in that the insulating cell and the shielding box body
Side wall or cassette bottom connection.
5. magnetron shield assembly according to claim 1, it is characterised in that when the insulating cell is arranged on described gripping
During the lower section of streamline circle, the insulating cell is groove structure, and centre is provided with the hole by the boss.
6. magnetron shield assembly according to claim 1, it is characterised in that when the insulating cell is arranged on described gripping
The height of the boss is less than described in when the insulating cell is arranged on the top of the choking-winding during lower section of streamline circle
The height of boss.
7. magnetron shield assembly according to claim 5, it is characterised in that the insulating cell and the shielding box body
Side wall or cassette bottom connection.
8. the magnetron shield assembly according to claim 1-7 any one, it is characterised in that the one of the choking-winding
End is connected with the output end of the feed-through capacitor, and the other end is connected with the end leader on the boss.
9. the magnetron shield assembly according to claim 1-7 any one, it is characterised in that the insulating cell is resistance to
High temperature plastic material or ceramic material.
10. a kind of magnetron, it is characterised in that including the magnetron shield assembly described in claim 1-9 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611200392.1A CN106711000A (en) | 2016-12-22 | 2016-12-22 | Magnetron shielding component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611200392.1A CN106711000A (en) | 2016-12-22 | 2016-12-22 | Magnetron shielding component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106711000A true CN106711000A (en) | 2017-05-24 |
Family
ID=58902975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611200392.1A Pending CN106711000A (en) | 2016-12-22 | 2016-12-22 | Magnetron shielding component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106711000A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109860007A (en) * | 2019-02-01 | 2019-06-07 | 武汉美味源生物工程有限公司 | Magnetron and insulating treatment method and its application under vacuum state |
| CN111739773A (en) * | 2020-06-24 | 2020-10-02 | 电子科技大学 | Miniaturized magnetron structure |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1078593A (en) * | 1992-03-27 | 1993-11-17 | 株式会社金星社 | The structure that is used for microwave oven magnetic to unwanted electromagnetic wave shielding |
| CN2482306Y (en) * | 2001-06-22 | 2002-03-13 | 王宝山 | LC module for magnetron of microwave oven |
| CN2583788Y (en) * | 2002-09-24 | 2003-10-29 | 广东美的集团股份有限公司 | Feed-through capacitor for microwave oven magnetron |
| CN2583787Y (en) * | 2002-11-15 | 2003-10-29 | 树振国 | High voltage ceramic through condenser |
| CN1485878A (en) * | 2002-09-26 | 2004-03-31 | ���ǵ�����ʽ���� | Magnetron for microwave ovens |
| CN2702439Y (en) * | 2004-05-21 | 2005-05-25 | 广东美的集团股份有限公司 | Magnetron |
| CN2762311Y (en) * | 2004-12-17 | 2006-03-01 | 佛山市美的日用家电集团有限公司 | Through capacitor |
| CN206480585U (en) * | 2016-12-22 | 2017-09-08 | 广东威特真空电子制造有限公司 | A kind of magnetron shield assembly and magnetron |
-
2016
- 2016-12-22 CN CN201611200392.1A patent/CN106711000A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1078593A (en) * | 1992-03-27 | 1993-11-17 | 株式会社金星社 | The structure that is used for microwave oven magnetic to unwanted electromagnetic wave shielding |
| CN2482306Y (en) * | 2001-06-22 | 2002-03-13 | 王宝山 | LC module for magnetron of microwave oven |
| CN2583788Y (en) * | 2002-09-24 | 2003-10-29 | 广东美的集团股份有限公司 | Feed-through capacitor for microwave oven magnetron |
| CN1485878A (en) * | 2002-09-26 | 2004-03-31 | ���ǵ�����ʽ���� | Magnetron for microwave ovens |
| CN2583787Y (en) * | 2002-11-15 | 2003-10-29 | 树振国 | High voltage ceramic through condenser |
| CN2702439Y (en) * | 2004-05-21 | 2005-05-25 | 广东美的集团股份有限公司 | Magnetron |
| CN2762311Y (en) * | 2004-12-17 | 2006-03-01 | 佛山市美的日用家电集团有限公司 | Through capacitor |
| CN206480585U (en) * | 2016-12-22 | 2017-09-08 | 广东威特真空电子制造有限公司 | A kind of magnetron shield assembly and magnetron |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109860007A (en) * | 2019-02-01 | 2019-06-07 | 武汉美味源生物工程有限公司 | Magnetron and insulating treatment method and its application under vacuum state |
| CN111739773A (en) * | 2020-06-24 | 2020-10-02 | 电子科技大学 | Miniaturized magnetron structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170524 |