CN103715043B - Magnetron and device using microwaves - Google Patents
Magnetron and device using microwaves Download PDFInfo
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- CN103715043B CN103715043B CN201310464067.6A CN201310464067A CN103715043B CN 103715043 B CN103715043 B CN 103715043B CN 201310464067 A CN201310464067 A CN 201310464067A CN 103715043 B CN103715043 B CN 103715043B
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- choke
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- splicing ear
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- 238000003466 welding Methods 0.000 abstract description 27
- 238000005452 bending Methods 0.000 description 4
- 239000003990 capacitor Substances 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 238000007493 shaping process Methods 0.000 description 4
- 229910000677 High-carbon steel Inorganic materials 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- 238000001574 biopsy Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
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- Microwave Tubes (AREA)
Abstract
A kind of magnetron and device using microwaves are provided.This magnetron has cathode frame, choke and connects the splicing ear of cathode frame and choke, the 1st parts that the splicing ear central axis direction had from cathode frame along magnetron extends extend with from the 1st parts and are bent into the 2nd parts contacted with choke, between the front end and the 1st parts of the 2nd parts of splicing ear, there is the space larger than the wire diameter of choke, the 2nd component flexes is round choke on the central axis direction of magnetron.Thereby, it is possible to the distortion of choke to suppress when welding etc., and the positioning precision of choke can be improved.
Description
Technical field
The present invention relates to the magnetron that microwave is produced and the device using microwaves with this magnetron.
Background technology
Common magnetron is divided into vacuum tube part and periphery substantially.Vacuum tube part has input part and high frequency output portion, and this input part has the anode portion being radially configured with multiple blade (vane) at internal face and the negative pole part be configured on the central shaft of anode portion.Periphery has permanent magnet, the yoke forming magnetic circuit and cooling end.
At the input part place of vacuum tube part, for keeping negative electrode filament and providing the lead-in wire of electric power (not shown) to be configured in vacuum tube inside.On the other hand, form LC filter circuit by choke and capacitor, leak into outside to suppress the high-frequency noise produced by magnetron via lead-in wire.Outside at vacuum tube, be configured with the splicing ear be connected with LC filter circuit.
As shown in Figure 8, there will be a known following magnetron: in the cathode frame 103 of magnetron, lead-in wire (not shown) in cathode frame 103 is one-body molded with splicing ear 131, and, splicing ear 131 is shaped to dull and stereotyped U-shaped and is connected with choke 132 (for example, referring to patent documentation 1).
In the magnetron of patent documentation 1, make the dull and stereotyped U-shaped part of splicing ear 131 hook the leading section of choke 132 and utilize Tig welding (gas tungsten arc welding) etc. to weld, be thus connected choke 132 and splicing ear 131.
When the lead-in wire in cathode frame 103 and splicing ear 131 one-body molded time, when being applied with splicing ear 131 from the load of outside or impact etc., there is negative electrode filament broken string, situation that splicing ear 131 departs from relative to the relative position of anode.Therefore, in recent years, lead-in wire and splicing ear is often made to distinguish shaping.
Patent documentation
Patent documentation 1: Japanese Unexamined Patent Publication 1-187738 publication
But, as shown in Figure 8, even if when going between and splicing ear difference is shaping, when splicing ear 131 is formed as U-shaped, a part due to splicing ear 131 is open, and therefore splicing ear 131 can not play the effect that choke 132 is located relative to direction, open end (below in Fig. 8).Thus, the positioning precision of choke 132 can not be improved.Such as, when choke 132 is welded in splicing ear 131, if splicing ear 131 does not contact with choke 132, then solder failure can be produced.Under these circumstances, if splicing ear 131 can not play the positioning action to choke 132, then exist and splicing ear 131 can not be made to contact with choke 132 and produce the possibility of solder failure.
On the other hand, in recent years, as shown in the front view of Fig. 9, in the cathode frame 204 of magnetron, sometimes by the bending lopping of the front end of the splicing ear 241 of pole shape.In the configuration shown in fig. 9, due to the below not opening of splicing ear 241, thus need the front end of choke 242 to be inserted in the part be bent into of splicing ear 241 and weld etc.
But, in order to weld in the part be bent into of the leading section of choke 242 insertion splicing ear 241, need to make the leading section of choke 242 stride across splicing ear 241 and significantly move in its insertion direction.Owing to often using choke 242 shaping in advance, if therefore make the leading section of choke 242 significantly move in an insertion direction, then choke 242 is probably made to deform.If choke 242 deforms, then likely cause the bad characteristic or the lost of life etc. of magnetron, considerable influence is brought to the electrical characteristic of magnetron.
Summary of the invention
The present invention completes in view of this situation, and object is to provide a kind of magnetron, the distortion of the choke that can to suppress when welding etc. and can improve the positioning precision of choke.
In order to solve above-mentioned existing problem, in magnetron of the present invention, this magnetron has cathode frame, choke and connects the splicing ear of cathode frame and choke, the 1st parts that the splicing ear central axis direction had from cathode frame along magnetron extends extend with from the 1st parts and are bent into the 2nd parts contacted with choke, 2nd component flexes is round choke on the central axis direction of magnetron, it is characterized in that, between the front end and the 1st parts of the 2nd parts of splicing ear, there is the space larger than the wire diameter of choke.
In addition, device using microwaves of the present invention has above-mentioned magnetron.
According to magnetron of the present invention and device using microwaves, the distortion of choke that can to suppress when welding etc., and the positioning precision of choke can be improved.
Accompanying drawing explanation
Fig. 1 is the biopsy cavity marker devices cutaway view of the magnetron of embodiments of the present invention.
Fig. 2 is the plane graph of the periphery of the LC filter circuit that the magnetron of execution mode has.
Fig. 3 is the front view of the cathode frame that the magnetron of execution mode has.
Fig. 4 is the front view of the splicing ear that the magnetron of execution mode has.
Fig. 5 is the front view of the splicing ear that the magnetron of variation 1 has.
Fig. 6 is the front view of the splicing ear that the magnetron of variation 2 has.
Fig. 7 A is the stereogram of the splicing ear that the magnetron of variation 3 has.
Fig. 7 B is the stereogram of the splicing ear that the magnetron of variation 3 has.
Fig. 8 is the stereogram of the cathode frame of existing magnetron.
Fig. 9 is the front view of the cathode frame of another existing magnetron.
Embodiment
The magnetron of the 1st invention has cathode frame, choke and connects the splicing ear of cathode frame and choke, the 1st parts that the splicing ear central axis direction had from cathode frame along magnetron extends extend with from the 1st parts and are bent into the 2nd parts contacted with choke, between the front end and the 1st parts of the 2nd parts of splicing ear, there is the space larger than the wire diameter of choke, the 2nd component flexes is round choke on the central axis direction of magnetron.Thus, due between the front end of the 2nd parts at splicing ear and the 1st parts, there is the space larger than the wire diameter of choke, therefore when welding etc., choke can be made to move along splicing ear and be positioned via space in the 2nd parts.Therefore, compared with situation about the front end of choke being inserted in the 2nd parts, can suppress choke weld time etc. distortion.In addition, because the 2nd component flexes is round choke on the central axis direction of magnetron, therefore, it is possible to the positioning precision of choke to improve when welding etc.
Particularly in the 2nd invention, the 1st parts and the 2nd parts of the 1st invention extend at grade.Thus, because structure is simple, the reliability of welding operation can thus be improved.In addition, can successfully choke be positioned in the 2nd parts.
Particularly in the 3rd invention, the angle of bend of the 2nd parts of the 1st invention is greater than 180 degree.Thereby, it is possible to suppress the situation of hooking the 2nd parts, the reliability of welding operation thus can be improved.
Particularly in the 4th invention, the front end of the 2nd parts of the 2nd invention is relative with the 1st parts.Thereby, it is possible to suppress the situation of hooking the 2nd parts, the reliability of welding operation thus can be improved.
Particularly in the 5th invention, the 2nd parts of the 1st invention have and to extend and angle of bend is the 1st bend of 90 degree and extends and angle of bend is the 2nd bend of 180 degree from the 1st bend from the 1st parts.
Particularly in the 6th invention, the splicing ear of the 5th invention is roughly P shape.
Particularly in the 7th invention, the 2nd parts of the 1st invention extend in the shape of a spiral.Thereby, it is possible to from multiple directions location choke, the positioning precision of choke thus can be improved.
Particularly in the invention of the 8th, the space between the front end and the 1st parts of the 2nd parts of the 1st invention is less than 2 times of the wire diameter of choke.Thereby, it is possible to improve the positioning precision of choke.
The invention of the 9th is the device using microwaves of the magnetron of any one invention had in the 1st ~ 8th.
Below, with reference to accompanying drawing, embodiments of the present invention are described.In addition, the present invention is not by the restriction of this execution mode.
(execution mode)
Fig. 1 is the partial sectional schematic cross sectional view carrying out cutting to a part for the magnetron 1 of embodiments of the present invention and obtain.The left side of Fig. 1 is the end view of magnetron 1, and right side is the cutaway view of magnetron 1.In explanation afterwards, with the left and right directions of Fig. 1 for X-direction, above-below direction is Y-direction, and fore-and-aft direction is Z-direction.As shown in Figure 1, magnetron 1 has choke 2, splicing ear 3, anode framework 4, cathode frame 5 and carries out the capacitor 6 of powering from outside.Magnetron 1 has these structures, produces microwave.Anode framework 4 has anodal barrel 7 and is radially configured in multiple blades 8 of internal face of anodal barrel 7.Cathode frame 5 has ceramic bar 13 and supporting frame 14, keeps the negative electrode filament 9 be configured on the central shaft of anodal barrel 7.The choke 2 had by magnetron 1 and capacitor 6, constitute the LC filter circuit preventing microwave leakage from arriving outside magnetron 1.The central shaft C of the magnetron 1 of present embodiment is consistent with the central shaft of anodal barrel 7.Below, direction of principal axis A (in the present embodiment, consistent with Y-direction) centered by the direction that the central shaft C of magnetron 1 extends.
Fig. 2 illustrates the plane graph of the periphery of the LC filter circuit that magnetron 1 has.Fig. 2 is the figure observing magnetron 1 from the below of Fig. 1.As shown in Figure 2, splicing ear 3 is connected with the lead-in wire (not shown) in the ceramic bar 13 of cathode frame 5, and, be connected with choke 2 in the opposite side of this connecting portion.Choke 2 has and to be connected with capacitor 6 and the portion of terminal that extends from the end of coil portion of the coil portion be made up of wire rod and wire rod.
Fig. 3 is the front view of the cathode frame 5 of the magnetron 1 of present embodiment.As shown in Figure 3, in cathode frame 5, splicing ear 3, ceramic bar 13, cathode supporting framework 14 and provide the lead-in wire of electric power (not shown) to be engaged by soldering for target filament 9.Splicing ear 3 and provide the lead-in wire of electric power by shaping respectively for target filament 9.The splicing ear 3 of present embodiment vertically erects relative to ceramic bar 13 (cathode frame 5).In addition, in figure 3, choke 2 is positioned in the leading section of splicing ear 3.
Next, use Fig. 4, the structure of the splicing ear 3 of present embodiment is described in detail.Fig. 4 is the front view of the splicing ear 3 of present embodiment.
As shown in Figure 4, splicing ear 3 is made up of the high-carbon steel wire with circular cross-section, and the bend 16 (the 2nd parts 16) that there is line part 15 (the 1st parts 15) and extend deviously from one end of line part 15.In the present embodiment, line part 15 and bend 16 are formed at grade (XY plane).That is, line part 15 and bend 16 be not towards the composition that Z-direction is bending.Between the front end 20 and line part 15 of bend 16, be formed with space 17.
Bend 16 has and to extend from one end of line part 15 and angle of bend is the 1st bend 18 of 90 degree and extends and angle of bend is the 2nd bend 19 in U-shaped of 180 degree from the 1st bend 18.Angle of bend herein refers to bend 16 anglec of rotation towards the direction (vector) of front end 20 from the rear end 21 of bend 16.Or, also can using the central angle of circular arc when splicing ear 3 is above observed in the direction (Z-direction) vertical with comprising the plane of line part 15 with the front end of bend 16 (being XY plane in the present embodiment), formed by each bend as angle of bend.The angle of bend of the bend 16 of present embodiment is 270 degree (90 degree of+180 degree), and splicing ear 3 is formed as roughly P shape.
The space 17 be formed between the front end 20 of the 2nd bend 19 and line part 15 is designed to the wire diameter being greater than choke 2.
In the present embodiment, the line part 15 of splicing ear 3 vertically erects from cathode frame 5, and extends along the central axis direction A of magnetron 1.
Below, the effect of the splicing ear 3 of magnetron 1 as constructed as above is described.
Owing to there is the space larger than the wire diameter of choke 2 between the front end 20 of the bend 16 at splicing ear 3 and line part 15, therefore weld time etc., choke 2 can be located along splicing ear 3, and not need the front end of choke 2 to insert from direction of insertion (Z-direction).Thereby, it is possible to easily choke 2 is configured at welding position, and when can reduce welding, the front end of choke 2, towards the movement of Z-direction, thus can suppress the distortion of choke 2.
Like this, owing to easily locating choke 2 and without the need to worrying distortion, thus can suppress the problems such as the bad characteristic of choke 2 and the lost of life.In addition, when the size in space 17 being set smaller than 2 times of wire diameter of choke 2, the positioning precision of choke 2 can be improved further.
In addition, bend 16 is bent on the central axis direction A of magnetron 1 round choke 2.Thus, on the central axis direction A of magnetron 1, not only limit choke 2 mobile towards the top (A1 direction) of Fig. 4, and restriction choke 2 downward (A2 direction) mobile, therefore, it is possible to improve the positioning precision of choke 2 when welding etc.
In addition, in the present embodiment, the line part 15 of splicing ear 3 extends along the central axis direction A of magnetron 1, therefore, operator easily can grasp the position/orientation of splicing ear 3 when welding etc., can improve the positioning precision of choke 2 relative to splicing ear 3.
In the present embodiment, the front end 20 of splicing ear 3 is configured to across space 17 relative with the line part 15 of splicing ear 3.Thus, without the need to worrying that equipment or operation gloves etc. are hooked in the front end of splicing ear 3, the distortion of splicing ear 3, the broken string etc. of filament can be suppressed.
In addition, in the present embodiment, line part 15 and bend 16 extend at grade.Therefore, compared with situation about not extending at grade, can easily form bend 16.In addition, due to choke 2 can be made successfully to be positioned in bend 16 by space 17, the welding operation of choke 2 and splicing ear 3 can thus easily be carried out.
Herein, when making the front end of splicing ear be formed as dull and stereotyped U-shaped, when manufacturing magnetron, because U-shaped can play the such effect of hook, thus easily hook equipment and operation gloves etc. in any place.On the other hand, in the present embodiment, the angle of bend of bend 16 is designed to be greater than 180 degree, and the front end of bend 16 is relative with line part 15.Thereby, it is possible to the situation that the operator front end that is bent portion 16 is hooked when suppressing welding operation etc., the reliability of welding operation thus can be improved.
In addition, in the present embodiment, the angle of bend due to bend 16 is designed to be less than 360 degree, thus can easily form bend 16, and easily can carry out the welding operation of choke 2 and splicing ear 3.
In addition, the invention is not restricted to above-mentioned execution mode, also can be implemented by other various mode.Such as, in embodiments, splicing ear 3 may not be circular section shape, or may not be high-carbon steel wire.In addition, bend 16 can be one or more, also on the same face, can not may not be curve.
Next, use Fig. 5,6,7A and 7B, the various variation of the splicing ear 3 of the magnetron 1 of present embodiment are described.Fig. 5 illustrates that the splicing ear 23, Fig. 6 of variation 1 illustrates that splicing ear 33, Fig. 7 A, 7B of variation 2 illustrate the splicing ear 43 of variation 3.
(variation 1)
As shown in Figure 5, the bend 26 (the 2nd parts 26) of the splicing ear 23 of variation 1 has and to extend from line part 25 (the 1st parts 25) and carry out the 1st bend 28 that bends with angle of bend 45 degree and extend from the 1st bend 28 and carry out the 2nd bend 29 of the U-shaped bent with angle of bend 180 degree.The angle of bend of bend 26 entirety of this variation 1 is 225 degree (45 degree of+180 degree).Even if under these circumstances, bend 26 is also bent into central axis direction A at magnetron round choke 22, and restriction choke 22 moves towards central axis direction A, thereby, it is possible to the positioning precision of the choke 22 to improve when welding etc.In addition, in this variation 1, the angle of bend due to bend 26 is also designed to be greater than 180 degree, and the front end of bend 26 is relative with line part 25, the situation that the front end that operator is bent portion 26 when thus can suppress welding operation etc. is hooked, can improve the reliability of welding operation.
(variation 2)
As shown in Figure 6, the bend 36 (the 2nd parts 36) of the splicing ear 33 of variation 2 has and to extend from line part 35 (the 1st parts 35) and carry out the 1st bend 38 that bends with angle of bend 120 degree and extend from the 1st bend 38 and carry out the 2nd bend 39 of the U-shaped bent with angle of bend 180 degree.The angle of bend of bend 36 entirety of this variation 2 is 300 degree (120 degree of+180 degree).Even if under these circumstances, bend 36 is also bent into central axis direction A at magnetron round choke 32, and restriction choke 32 moves towards central axis direction A, therefore, it is possible to the positioning precision of the choke 32 to improve when welding etc.In addition, in this variation 2, the angle of bend of bend 36 is also designed to be greater than 180 degree, and the front end of bend 36 is relative with line part 35, therefore, it is possible to the situation suppressing the front end that operator is bent portion 36 when welding operation etc. to be hooked, the reliability of welding operation can be improved.
(variation 3)
In embodiments, the situation that line part 15 and bend 16 extend at grade is illustrated, but in this variation 3, line part 45 (the 1st parts 45) and bend 46 (the 2nd parts 46) do not extend at grade.Specifically, as shown in Fig. 7 A, 7B, the bend 46 that splicing ear 43 has line part 45 and helically bends extension from line part 45.Bend 46 extends because helical form is bending, thus has towards the bending composition of Z-direction.It is 270 degree that the angle of bend of bend 46 and execution mode are identically formed.Under these circumstances, bend 46 is also bent into central axis direction A at magnetron round choke (not shown), and restriction choke moves towards central axis direction A, therefore, it is possible to the positioning precision of the choke to improve when welding etc.In addition, in this variation 3, the angle of bend due to bend 46 is also designed to be greater than 180 degree, the situation that the front end that the operator such as thus can to suppress when welding operation be bent portion 46 is hooked, and can improve the reliability of welding operation.In addition, by make bend 46 with line part 45 not mode be at grade formed as helical form, choke can be located from multiple directions.Thereby, it is possible to improve the positioning precision of choke.
In addition, by any execution mode in appropriately combined above-mentioned various execution mode, the effect had separately can be played.
About the present invention, with reference to accompanying drawing, abundant record has been carried out to preferred implementation, but easy understand those skilled in the art can carry out various changes and modifications to it.Be construed as, only otherwise depart from the scope of the present invention that appended claims limits, such distortion and amendment are also contained in scope of the present invention.
As mentioned above, according to magnetron of the present invention, be useful as the magnetron used in the device using microwaves such as microwave oven, microwave plasma generation device, ink setting equipment and food drying equipment.
Claims (9)
1. a magnetron, this magnetron has cathode frame, choke and connects the splicing ear of cathode frame and choke, the 1st parts that the splicing ear central axis direction had from cathode frame along magnetron extends extend with from the 1st parts and are bent into the 2nd parts contacted with choke, 2nd component flexes is round choke at the central axis direction of magnetron, it is characterized in that
Between the front end and the 1st parts of the 2nd parts of splicing ear, there is the space larger than the wire diameter of choke.
2. magnetron according to claim 1, wherein,
1st parts and the 2nd parts extend at grade.
3. magnetron according to claim 1, wherein,
The angle of bend of the 2nd parts is greater than 180 degree.
4. magnetron according to claim 2, wherein,
The front end of the 2nd parts is relative with the 1st parts.
5. magnetron according to claim 1, wherein,
2nd parts have and to extend and angle of bend is the 1st bend of 90 degree and extends and angle of bend is the 2nd bend of 180 degree from the 1st bend from the 1st parts.
6. magnetron according to claim 5, wherein,
Splicing ear is P shape.
7. magnetron according to claim 1, wherein,
2nd parts extend in the shape of a spiral.
8. magnetron according to claim 1, wherein,
Space between the front end of the 2nd parts and the 1st parts is less than 2 times of the wire diameter of choke.
9. a device using microwaves, is characterized in that, this device using microwaves has the magnetron in claim 1 to 8 described in any one.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012-221975 | 2012-10-04 | ||
| JP2012221975A JP6118984B2 (en) | 2012-10-04 | 2012-10-04 | Magnetron and microwave equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103715043A CN103715043A (en) | 2014-04-09 |
| CN103715043B true CN103715043B (en) | 2016-03-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310464067.6A Expired - Fee Related CN103715043B (en) | 2012-10-04 | 2013-10-08 | Magnetron and device using microwaves |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6118984B2 (en) |
| CN (1) | CN103715043B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113871276A (en) * | 2021-09-29 | 2021-12-31 | 中山市美格电子科技有限公司 | Filtering assembly of magnetron |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1577700A (en) * | 2003-06-30 | 2005-02-09 | 松下电器产业株式会社 | Magnetron |
| CN1855351A (en) * | 2005-04-26 | 2006-11-01 | 松下电器产业株式会社 | Magnetron for microwave oven |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60146390U (en) * | 1984-03-07 | 1985-09-28 | 日本ビクター株式会社 | Mounting structure of electronic parts for operation |
| JPS6139856U (en) * | 1984-08-16 | 1986-03-13 | 株式会社東芝 | magnetron |
| JPS61156624A (en) * | 1984-12-28 | 1986-07-16 | Toshiba Corp | Magnetron for microwave oven |
| JPS61288346A (en) * | 1985-06-17 | 1986-12-18 | Matsushita Electronics Corp | Cathode body structure for magnetron |
| JPH01187738A (en) * | 1988-01-20 | 1989-07-27 | Hitachi Ltd | Cathode structure for magnetron |
| JPH02104578U (en) * | 1989-02-06 | 1990-08-20 | ||
| JPH03272547A (en) * | 1990-03-22 | 1991-12-04 | Matsushita Electron Corp | Magnetron |
| KR0161015B1 (en) * | 1992-07-28 | 1998-12-01 | 강진구 | Cathode support structure of magnetron |
| JPH1145692A (en) * | 1997-07-29 | 1999-02-16 | Oki Electric Ind Co Ltd | Feed terminal for portable electronic equipment |
| JPH11144629A (en) * | 1997-11-12 | 1999-05-28 | Sanyo Electric Co Ltd | Manufacture of magnetron negative electrode structure |
| JP2002076653A (en) * | 2000-08-24 | 2002-03-15 | Seiko Epson Corp | Display device and electronic apparatus using the same |
-
2012
- 2012-10-04 JP JP2012221975A patent/JP6118984B2/en not_active Expired - Fee Related
-
2013
- 2013-10-08 CN CN201310464067.6A patent/CN103715043B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1577700A (en) * | 2003-06-30 | 2005-02-09 | 松下电器产业株式会社 | Magnetron |
| CN1855351A (en) * | 2005-04-26 | 2006-11-01 | 松下电器产业株式会社 | Magnetron for microwave oven |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103715043A (en) | 2014-04-09 |
| JP2014075263A (en) | 2014-04-24 |
| JP6118984B2 (en) | 2017-04-26 |
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