CN111128931A - Rectifier tube shell - Google Patents
Rectifier tube shell Download PDFInfo
- Publication number
- CN111128931A CN111128931A CN201811276213.1A CN201811276213A CN111128931A CN 111128931 A CN111128931 A CN 111128931A CN 201811276213 A CN201811276213 A CN 201811276213A CN 111128931 A CN111128931 A CN 111128931A
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- Prior art keywords
- copper sheet
- rectifier
- anode
- flange
- aluminum block
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/48—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/02—Containers; Seals
- H01L23/06—Containers; Seals characterised by the material of the container or its electrical properties
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/02—Containers; Seals
- H01L23/10—Containers; Seals characterised by the material or arrangement of seals between parts, e.g. between cap and base of the container or between leads and walls of the container
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- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Die Bonding (AREA)
- Thermistors And Varistors (AREA)
Abstract
The invention discloses a rectifier tube shell which comprises a rectifier tube cover and a rectifier tube seat which are connected with each other, a cathode electrode included in the rectifier tube cover, an anode electrode included in the rectifier tube seat, a cathode flange and an anode flange. The cathode electrode comprises a first aluminum block and a first copper sheet attached to the lower surface of the first aluminum block, the anode electrode comprises a second aluminum block and a second copper sheet attached to the upper surface of the second aluminum block, and the cathode flange is connected with the first copper sheet; the anode flange is connected with the second copper sheet. The rectifier shell reduces the weight of the rectifier shell under the condition of ensuring high strength, good air tightness, high pressure resistance and good insulating property of the rectifier, and meets the use requirement of the field with strict weight requirement.
Description
Technical Field
The invention relates to the technical field of power semiconductor devices, in particular to a rectifier tube shell.
Background
Rectifiers are the traditional high power devices in power electronics, with the highest power ratings. Due to the characteristics of high voltage and high current, extremely low conduction loss and quite low cost of the rectifier, the rectifier still plays an important role in the aspects of high-voltage direct-current transmission, static reactive compensation, high-power direct-current power supply, ultrahigh power and high-voltage variable-frequency speed regulation.
At present, a rectifier tube shell mainly comprises a cathode electrode, a cathode flange, an anode flange, a ceramic ring, an anode electrode and an anode sealing ring. The anode electrode and the cathode electrode are made of oxygen-free copper materials, the weight of a set of pipe shell with the outer table surface diameter of 78mm is about 1748g, and the copper pipe shell cannot meet the weight requirement in the field with strict weight requirement.
Therefore, there is a need for a rectifier package that can meet both weight and structural requirements.
Disclosure of Invention
In order to solve the above technical problems in the prior art, the present invention provides a rectifier tube case, including:
a rectifier tube cap and a rectifier tube base connected to each other;
the cathode electrode comprises a first aluminum block and a first copper sheet attached to the lower surface of the first aluminum block;
the anode electrode comprises a second aluminum block and a second copper sheet attached to the upper surface of the second aluminum block;
the cathode flange is connected with the first copper sheet;
and the anode flange is connected with the second copper sheet.
Preferably, the inner edge of the cathode flange is attached to the end face of the first aluminum block and extends downwards and is connected with the first copper sheet.
Preferably, the anode flange is connected with the second copper sheet through a porcelain ring and an anode sealing ring,
the upper end face of the ceramic ring is connected with the anode flange, the lower end face of the ceramic ring is connected with the outer edge of the anode sealing ring, and the inner edge of the anode sealing ring is attached to the end face of the anode electrode, extends and is connected with the second copper sheet.
Preferably, the chip of the rectifier is disposed between the anode electrode and the cathode electrode.
Preferably, the rectifier tube shell further comprises an upper metal gasket and a lower metal gasket which are respectively arranged above and below the chip, the upper metal gasket is attached to the first copper sheet, and the lower metal gasket is attached to the second copper sheet.
Preferably, the lower metal gasket is fixedly connected with the anode electrode through a positioning ring.
Preferably, the positioning ring is provided with a groove which can be attached to a second copper sheet at the corner of the anode electrode.
Preferably, the upper part of the end face of the lower metal gasket is accommodated in the red glue of the chip, the lower part of the end face of the lower metal gasket is accommodated in the positioning ring, and the groove is attached to the second copper sheet at the corner of the anode electrode.
Preferably, the thickness of the first copper sheet and the thickness of the second copper sheet are both 5 mm.
Preferably, the upper metal gasket and the lower metal gasket are molybdenum sheets or silver sheets.
Compared with the prior art, the invention has the advantages that the cathode electrode is improved into the first aluminum block and the first copper sheet attached to the lower surface of the first aluminum block, the anode electrode is improved into the second aluminum block and the second copper sheet attached to the upper surface of the second aluminum block, so that the use of copper materials is greatly reduced, meanwhile, the structures of the cathode flange and the anode sealing ring are improved to match the improved cathode electrode and anode electrode, in addition, the lower metal gasket and the anode electrode are fixed by the positioning ring in accordance with the material characteristics and the structural characteristics of the anode electrode, the shaking of the lower metal gasket is prevented, further, the weight of the rectifier tube shell is reduced under the condition of ensuring high strength, good air tightness, high pressure resistance and good insulating property of the rectifier, and the use requirement of the field with strict weight requirement is met.
Drawings
Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. In the figure:
fig. 1 is a schematic diagram of a rectifier package in the prior art.
Fig. 2 is a schematic diagram of the construction of a rectifier package according to the present invention.
In the drawings, like parts are provided with like reference numerals. The figures are not drawn to scale.
Detailed Description
The invention will be further explained with reference to the drawings.
Fig. 1 shows a schematic structure of a prior art rectifier case, and referring to fig. 1, the prior art rectifier case comprises a cathode electrode 1, a cathode flange 2, an anode flange 3, a ceramic ring 4, an anode electrode 5 and an anode sealing ring 6.
In the rectifier tube shell, structurally, the cathode flange 2 is welded on the end face of the cathode electrode 1, the inner edge of the anode sealing ring 6 is welded on the outer edge of the anode electrode 5, the outer edge of the anode sealing ring 6 is welded on the lower end face of the ceramic ring 4, and the anode flange 3 is welded on the upper end face of the ceramic ring 4. The anode flange 3, the ceramic ring 4 and the anode sealing ring 6 are overlapped and welded from top to bottom. In terms of material preparation, the anode electrode 5 and the cathode electrode 1 are both made of oxygen-free copper materials, the weight of a set of pipe shell with the diameter of 78mm of the outer table surface is about 1748g, and the copper pipe shell cannot meet the weight requirement in the field with strict weight requirement.
Fig. 2 shows a rectifier case according to an embodiment of the present invention, which includes a rectifier case and a rectifier cap (not shown in the drawing), a cathode electrode 1, an anode electrode 5, a cathode flange 2, and an anode flange 3, which are connected to each other. The cathode electrode 1 is included in the rectifier tube cover, and the cathode electrode 1 includes a first aluminum block 11 and a first copper sheet 12 attached to the lower surface of the first aluminum block 11. The anode electrode 5 is included in the rectifier tube seat, and the anode electrode 5 includes a second aluminum block 51 and a second copper sheet 52 attached to the upper surface of the second aluminum block 51. The cathode flange 2 is connected with the first copper sheet 11, and the anode flange 3 is connected with the second copper sheet 51. Preferably, the thickness of each of the first and second copper sheets 12 and 52 is set to 5 mm.
In the embodiment shown in fig. 2, the inner edge of the cathode flange 2 extends downward against the end face of the first aluminum block 11 and is connected to the first copper sheet 12. The anode flange 3 is connected with the second copper sheet 52 through the porcelain ring 4 and the anode sealing ring 6. Specifically, the upper end face of the ceramic ring 4 is connected with the anode flange 3, the lower end face of the ceramic ring 4 is connected with the outer edge of the anode sealing ring 6, and the inner edge of the anode sealing ring 6 is attached to the end face of the anode electrode 5 to extend and is connected with the second copper sheet 51.
According to the rectifier tube shell with the structure, the original electrode made of the copper material is improved into the electrode formed by combining the aluminum block and the copper sheet, the use of the copper material is greatly reduced, and meanwhile, the structures of the cathode flange and the anode sealing ring are improved to match the improved cathode electrode and the improved anode electrode, so that the weight of the rectifier tube shell is reduced. In the embodiment shown in fig. 2, compared with the existing rectifier tube housing of 1748g, the rectifier tube housing with 78mm diameter of the outer table surface has the weight of only 899g, so that the weight is greatly reduced, and the use requirement of the field with strict weight requirement is met.
In a particular embodiment, the porcelain ring 4 may be provided in the shape of a convex ring or a corrugated skirt. The invention is not limited.
In this embodiment, the chip 7 of the rectifier is disposed between the anode electrode 5 and the cathode electrode 1. In addition, an upper metal gasket 8 and/or a lower metal gasket 9 can be respectively arranged above and below the chip 7, the upper metal gasket 8 is attached to the first copper sheet 11, and the lower metal gasket 9 is attached to the second copper sheet 52, so as to ensure the reliability of the peripheral circuit of the chip 7. In particular, the upper metal pad 8 and/or the lower metal pad 9 may be made of a conductive metal sheet such as a molybdenum sheet or a silver sheet.
In the rectifier tube shown in fig. 1, since the anode electrode 5 is entirely made of a copper material, a first clamping groove may be formed in an upper portion of the copper material, a second clamping groove may be formed in a position of a lower portion of the lower metal gasket 9 corresponding to the first clamping groove, and pins may be disposed in the first clamping groove and the second clamping groove, so that the lower metal gasket 9 and the anode electrode are fixedly connected to each other, and the lower metal gasket 9 is prevented from shaking.
However, in the rectifier package of the present invention shown in fig. 2, in order to reduce the overall weight of the rectifier package, the anode electrode 5 is made of the second aluminum block 51 and the second copper sheet 52 attached to the upper surface of the second aluminum block 51, and the thickness of the second copper sheet 52 is very thin, generally set to 5mm, so it is difficult to form a groove on the second copper sheet 52 with the thickness to fix the lower metal gasket 9. Therefore, the lower metal gasket 9 of the present application is fixedly connected to the anode electrode 5 by the positioning ring 10. The positioning rings 10 are symmetrically arranged at two ends of the lower metal gasket 9, and specifically, the positioning rings 10 are provided with grooves 101 which can be attached to the second copper sheets at the corners of the anode electrode 5. The upper portion holding of lower metal gasket 9 terminal surface is in red glue 71 of chip 7, and the lower part holding of lower metal gasket 9 terminal surface is in holding ring 10, and recess 101 laminating anode electrode 5 is on the second copper sheet 52 of corner to realize metal gasket 9 and anode electrode 5's fixed and metal gasket 9 and chip 7's fixed down, prevent that chip 7 from taking place to rock in the use.
In summary, the rectifier tube shell of the present invention includes a rectifier tube cover and a rectifier tube seat connected to each other, the cathode electrode 1 is included in the rectifier tube cover, and the cathode electrode 1 includes a first aluminum block 11 and a first copper sheet 12 attached to a lower surface of the first aluminum block 11. The anode electrode 5 is included in the rectifier tube seat, and the anode electrode 5 includes a second aluminum block 51 and a second copper sheet 52 attached to the upper surface of the second aluminum block 51. The rectifier tube shell of this kind of structure has reduced the use of copper product by a wide margin, simultaneously, through improving the structure of negative pole flange 2 and positive pole sealing ring 6 to the negative pole electrode 1 and the positive pole electrode 4 after the cooperation improves, thereby under the circumstances of guaranteeing rectifier high strength, good gas tightness, high pressure resistant, good insulating properties, still reduced the weight of rectifier tube shell, satisfied the user demand in the field that the heavy-duty requirement is strict. Meanwhile, the positioning ring 10 is adopted to fix the lower metal gasket 9 and the anode electrode 5 by matching with the structure and material characteristics of the anode electrode 5, so that the lower metal gasket 9 is prevented from shaking. In summary, the rectifier tube shell of the invention improves the structure and preparation materials of the tube shell, and through the mutual matching of the structural characteristics and the material characteristics, the weight of the rectifier tube shell is reduced, and the use requirements of the field with strict weight requirements are met.
The above description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily make changes or variations within the technical scope of the present invention disclosed, and such changes or variations should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A rectifier package, comprising:
a rectifier tube cap and a rectifier tube base connected to each other;
the cathode electrode comprises a first aluminum block and a first copper sheet attached to the lower surface of the first aluminum block;
the anode electrode comprises a second aluminum block and a second copper sheet attached to the upper surface of the second aluminum block;
the cathode flange is connected with the first copper sheet;
and the anode flange is connected with the second copper sheet.
2. The rectifier package of claim 1, wherein the inner edge of the cathode flange extends downward against the end surface of the first aluminum block and is connected to the first copper sheet.
3. The rectifier package of claim 1, wherein the anode flange is connected to the second copper sheet by a porcelain ring and an anode sealing ring,
the upper end face of the ceramic ring is connected with the anode flange, the lower end face of the ceramic ring is connected with the outer edge of the anode sealing ring, and the inner edge of the anode sealing ring is attached to the end face of the anode electrode, extends and is connected with the second copper sheet.
4. The rectifier package as claimed in claim 1, wherein the rectifier chip is arranged between the anode electrode and the cathode electrode.
5. The rectifier package of claim 1, further comprising an upper metal pad and a lower metal pad disposed above and below the chip, respectively, the upper metal pad attached to the first copper sheet and the lower metal pad attached to the second copper sheet.
6. A rectifier package as claimed in claim 5, characterized in that the lower metal gasket is fixedly connected to the anode electrode by means of a retaining ring.
7. A rectifier package as claimed in claim 6, characterized in that the retaining ring has a recess which can be brought into abutment with a second copper sheet at the corner of the anode electrode.
8. The rectifier package as claimed in claim 7, wherein the upper portion of the lower metal pad end surface is received in the red glue of the chip, the lower portion of the lower metal pad end surface is received in the retaining ring, and the groove is attached to the second copper plate at the corner of the anode electrode.
9. A rectifier package as claimed in claim 1, characterized in that the first copper sheet and the second copper sheet each have a thickness of 5 mm.
10. The rectifier package as claimed in claim 1, wherein the upper metal pad and the lower metal pad are molybdenum or silver pads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811276213.1A CN111128931B (en) | 2018-10-30 | 2018-10-30 | Rectifier tube shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811276213.1A CN111128931B (en) | 2018-10-30 | 2018-10-30 | Rectifier tube shell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111128931A true CN111128931A (en) | 2020-05-08 |
| CN111128931B CN111128931B (en) | 2021-08-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811276213.1A Active CN111128931B (en) | 2018-10-30 | 2018-10-30 | Rectifier tube shell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111128931B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10340916A (en) * | 1997-06-05 | 1998-12-22 | Toshiba Corp | Press-contact type semiconductor device |
| CN102768997A (en) * | 2012-07-28 | 2012-11-07 | 江阴市赛英电子有限公司 | High-power complete wafer IGBT (insulated gate bipolar translator) ceramic package housing |
| CN103531622A (en) * | 2012-07-06 | 2014-01-22 | 湖北台基半导体股份有限公司 | High-voltage fast thyristor |
| CN203659871U (en) * | 2013-08-26 | 2014-06-18 | 湖北台基半导体股份有限公司 | High-voltage fast open thyristor |
| CN104637887A (en) * | 2015-01-14 | 2015-05-20 | 株洲南车时代电气股份有限公司 | Explosion-proof rectifying tube and encapsulation method thereof |
| CN106783749A (en) * | 2016-12-15 | 2017-05-31 | 江阴市赛英电子股份有限公司 | A kind of super large-scale ceramic package structure |
| CN207199629U (en) * | 2017-08-23 | 2018-04-06 | 杭州西风半导体有限公司 | A kind of Thyristor shell |
| CN108172617A (en) * | 2017-12-23 | 2018-06-15 | 湖南大学 | A kind of circle large scale igbt chip crimping encapsulating structure and manufacturing method |
-
2018
- 2018-10-30 CN CN201811276213.1A patent/CN111128931B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10340916A (en) * | 1997-06-05 | 1998-12-22 | Toshiba Corp | Press-contact type semiconductor device |
| CN103531622A (en) * | 2012-07-06 | 2014-01-22 | 湖北台基半导体股份有限公司 | High-voltage fast thyristor |
| CN102768997A (en) * | 2012-07-28 | 2012-11-07 | 江阴市赛英电子有限公司 | High-power complete wafer IGBT (insulated gate bipolar translator) ceramic package housing |
| CN203659871U (en) * | 2013-08-26 | 2014-06-18 | 湖北台基半导体股份有限公司 | High-voltage fast open thyristor |
| CN104637887A (en) * | 2015-01-14 | 2015-05-20 | 株洲南车时代电气股份有限公司 | Explosion-proof rectifying tube and encapsulation method thereof |
| CN106783749A (en) * | 2016-12-15 | 2017-05-31 | 江阴市赛英电子股份有限公司 | A kind of super large-scale ceramic package structure |
| CN207199629U (en) * | 2017-08-23 | 2018-04-06 | 杭州西风半导体有限公司 | A kind of Thyristor shell |
| CN108172617A (en) * | 2017-12-23 | 2018-06-15 | 湖南大学 | A kind of circle large scale igbt chip crimping encapsulating structure and manufacturing method |
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| Publication number | Publication date |
|---|---|
| CN111128931B (en) | 2021-08-20 |
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Effective date of registration: 20200928 Address after: 412001 Room 309, floor 3, semiconductor third line office building, Tianxin hi tech park, Shifeng District, Zhuzhou City, Hunan Province Applicant after: Zhuzhou CRRC times Semiconductor Co.,Ltd. Address before: The age of 412001 in Hunan Province, Zhuzhou Shifeng District Road No. 169 Applicant before: ZHUZHOU CRRC TIMES ELECTRIC Co.,Ltd. |
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