CN110517871B - Internal middle and external three-shielding transformer - Google Patents
Internal middle and external three-shielding transformer Download PDFInfo
- Publication number
- CN110517871B CN110517871B CN201910754690.2A CN201910754690A CN110517871B CN 110517871 B CN110517871 B CN 110517871B CN 201910754690 A CN201910754690 A CN 201910754690A CN 110517871 B CN110517871 B CN 110517871B
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- CN
- China
- Prior art keywords
- shielding cylinder
- iron core
- interval
- circular
- primary coil
- 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.)
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000012212 insulator Substances 0.000 claims abstract description 14
- 239000003822 epoxy resin Substances 0.000 claims description 4
- 229920000647 polyepoxide Polymers 0.000 claims description 4
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000009413 insulation Methods 0.000 description 6
- 238000002955 isolation Methods 0.000 description 6
- 239000007788 liquid Substances 0.000 description 3
- 238000007493 shaping process Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 239000010963 304 stainless steel Substances 0.000 description 1
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/288—Shielding
- H01F27/2885—Shielding with shields or electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
- H01F27/306—Fastening or mounting coils or windings on core, casing or other support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/32—Insulating of coils, windings, or parts thereof
- H01F27/324—Insulation between coil and core, between different winding sections, around the coil; Other insulation structures
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/32—Insulating of coils, windings, or parts thereof
- H01F27/327—Encapsulating or impregnating
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
- H01F27/36—Electric or magnetic shields or screens
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transformers For Measuring Instruments (AREA)
Abstract
The invention relates to an inner-middle-outer three-shielding transformer. The device comprises a primary coil, a secondary coil and an iron core, and is characterized in that: also included are U-shaped tubes that act as inner shields. The iron core is annular iron core, and the cover has well shielding drum on the horizontal portion of U-shaped pipe, has first interval between well shielding drum and the U-shaped pipe horizontal portion, and the embedment has the inner insulator in the first interval. The outer shielding cylinder is arranged outside the middle shielding cylinder, and a second interval is arranged between the middle shielding cylinder and the outer shielding cylinder. The annular iron core around which the primary coil is wound is sleeved in a second interval, and an outer insulator is encapsulated in the second interval. The two ends of the middle shielding cylinder are respectively provided with a first circular-angle electrode, the two ends of the outer shielding cylinder are respectively provided with a second circular-angle electrode, and radial pipes are connected between the first circular-angle electrode and the second circular-angle electrode at the same end. The two ends of the primary coil pass through a radial tube and then extend out. The U-shaped pipe is internally penetrated with a secondary coil, and two ends of the secondary coil respectively extend out of two ends of the U-shaped pipe. The transformer has small volume, light weight and convenient maintenance. Is suitable for electron accelerator.
Description
Technical Field
The present invention relates to a transformer. In particular to a three-shielding transformer for an electron accelerator with an ultrahigh electrical isolation function.
Background
It is known in the electron accelerator manufacturing industry that transformers for electron accelerators require ultra-high electrical isolation, i.e., the isolation voltage between the primary and secondary stages exceeds the high voltage of the electron accelerator. Therefore, the primary stage of the transformer must be isolated. Currently, the electrical isolation methods for transformers for electron accelerators are mainly gas-insulated and liquid-insulated. While electrical isolation of transformers for electronic accelerators can be achieved using gas insulation and liquid insulation, transformers using gas insulation are bulky, transformers using liquid insulation are heavy and very cumbersome to maintain.
Disclosure of Invention
The invention aims to solve the problem of providing an inner-middle-outer three-shielding transformer. The transformer has the advantages of small volume, light weight and convenient maintenance.
The above problems to be solved by the present invention are realized by the following technical solutions:
The invention relates to an inner, middle and outer three-shielding transformer which comprises a primary coil, a secondary coil and an iron core, and is characterized in that: also included are U-shaped tubes that act as inner shields. The iron core is an annular iron core, a middle shielding cylinder is sleeved on the transverse portion of the U-shaped pipe, a first interval is reserved between the periphery of the inner circle of the middle shielding cylinder and the transverse portion of the U-shaped pipe, and an inner insulator is filled and sealed in the first interval. An outer shielding cylinder is arranged outside the middle shielding cylinder, and a second interval is arranged between the middle shielding cylinder and the outer shielding cylinder; the primary coil is wound on the annular iron core, the annular iron core around which the primary coil is wound is sleeved in a second interval outside the middle shielding cylinder, intervals are reserved between the annular iron core and the middle and outer shielding cylinders, and an outer insulator is filled and sealed in the second interval except for the annular iron core around which the primary coil is wound. The two ends of the middle shielding cylinder are respectively provided with a first circular-angle electrode, the two ends of the outer shielding cylinder are respectively provided with a second circular-angle electrode, and radial pipes serving as equipotential leads are connected between the first circular-angle electrode and the second circular-angle electrode at the same end. The two ends of the primary coil are insulated and extend out after passing through a radial tube; the U-shaped pipe is internally penetrated with a lead wire used as a secondary coil, and the secondary coil is provided with a coil wire: and the two ends of the U-shaped pipe extend out of the two ends of the U-shaped pipe respectively.
The first round-angle electrode is formed by processing both ends of the middle shielding cylinder into circular arcs, and the second round-angle electrode is formed by processing both ends of the outer shielding cylinder into circular arcs.
The inner insulator and the outer insulator are both epoxy resin.
According to the scheme, the U-shaped tube is used as the inner shield, the cylinder sleeved on the transverse part of the U-shaped tube is used as the middle shield, the cylinder sleeved outside the middle shield is used as the outer shield, and the first interval between the inner shield and the outer shield and the second interval between the middle shield and the outer shield are filled and sealed by epoxy resin, so that the electric isolation of the transformer is realized. Compared with the prior art adopting gas insulation and liquid insulation, the volume of the transformer is reduced, the weight of the transformer is lightened, and the maintenance is very convenient.
Drawings
Fig. 1 is a schematic diagram of an inner, middle and outer three-shield transformer structure of the present invention.
Detailed Description
As shown in fig. 1, the inner, middle and outer three-shielded transformer of the present invention includes a primary coil 13, a secondary coil 4, an iron core 12, and a U-shaped tube 1 serving as an inner shield. The iron core 12 is an annular iron core, a middle shielding cylinder 2 is sleeved on the transverse part of the U-shaped pipe 1, a first interval is reserved between the periphery of the inner circle of the middle shielding cylinder 2 and the transverse part of the U-shaped pipe 1, and an inner insulator 9 is filled and sealed in the first interval. An outer shielding cylinder 5 is arranged outside the middle shielding cylinder 2, and a second interval is reserved between the middle shielding cylinder 2 and the outer shielding cylinder 5. The primary coil 13 is wound on the annular iron core, the annular iron core around which the primary coil 13 is wound is sleeved in a second interval outside the middle shielding cylinder 2, intervals are reserved between the annular iron core and the middle and outer shielding cylinders, and the outer insulator 6 is encapsulated in the second interval except for the annular iron core 12 around which the primary coil 13 is wound. The two ends of the middle shielding cylinder 2 are respectively provided with a first circular-angle electrode 8 which is integrated with the middle shielding cylinder, the two ends of the outer shielding cylinder 5 are respectively provided with a second circular-angle electrode 7 which is integrated with the outer shielding cylinder, three radial pipes 10 which are used as equipotential leads are uniformly distributed between the circumferences of the first circular-angle electrode and the second circular-angle electrode, and the two ends of the three radial pipes 10 are respectively welded with the first circular-angle electrode 8 and the second circular-angle electrode 7. The first round electrode 8 is formed by arc-shaping both ends of the middle shield cylinder 2, and the second round electrode 7 is formed by arc-shaping both ends of the outer shield cylinder 5. The two ends 11 of the primary coil 13 protrude in an insulated manner through one of the radial tubes 10. The U-shaped tube 1 is internally penetrated with a wire serving as a secondary coil 4, and two ends of the secondary coil 4 respectively extend out of two ends of the U-shaped tubular iron core 1.
In this embodiment, the inner insulator 9 and the outer insulator 6 are both epoxy resins.
The U-shaped pipe 1, the radial pipe 10, the middle shielding cylinder 2 and the outer shielding cylinder 5 are all made of stainless steel. Wherein the stainless steel is 304 stainless steel.
Claims (3)
1. The utility model provides an inside, outside three shielding transformers, includes primary coil, secondary coil and iron core, its characterized in that: also included are U-shaped tubes that serve as inner shields; the iron core is an annular iron core, a middle shielding cylinder is sleeved on the transverse part of the U-shaped pipe, a first interval is reserved between the periphery of the inner circle of the middle shielding cylinder and the transverse part of the U-shaped pipe, and an inner insulator is filled and sealed in the first interval; an outer shielding cylinder is arranged outside the middle shielding cylinder, and a second interval is arranged between the middle shielding cylinder and the outer shielding cylinder; the primary coil is wound on the annular iron core, the annular iron core around which the primary coil is wound is sleeved in a second interval outside the middle shielding cylinder, intervals are reserved between the annular iron core and the middle and outer shielding cylinders, and an outer insulator is encapsulated in the second interval except for the annular iron core around which the primary coil is wound; the two ends of the middle shielding cylinder are respectively provided with a first circular-angle electrode, the two ends of the outer shielding cylinder are respectively provided with a second circular-angle electrode, and radial pipes serving as equipotential leads are connected between the first circular-angle electrode and the second circular-angle electrode at the same end; the two ends of the primary coil are insulated and extend out after passing through a radial tube; the U-shaped pipe is internally penetrated with a lead wire serving as a secondary coil, and two ends of the secondary coil respectively extend out of two ends of the U-shaped pipe.
2. The inside, middle and outside three-shielded transformer according to claim 1, wherein: the first round electrode is formed by processing both ends of the middle shielding cylinder into circular arcs, and the second round electrode is formed by processing both ends of the outer shielding cylinder into circular arcs.
3. The inside, middle and outside three-shielded transformer according to claim 1, wherein: the inner insulator and the outer insulator are both epoxy resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910754690.2A CN110517871B (en) | 2019-08-23 | 2019-08-23 | Internal middle and external three-shielding transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910754690.2A CN110517871B (en) | 2019-08-23 | 2019-08-23 | Internal middle and external three-shielding transformer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110517871A CN110517871A (en) | 2019-11-29 |
| CN110517871B true CN110517871B (en) | 2024-06-04 |
Family
ID=68625360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910754690.2A Active CN110517871B (en) | 2019-08-23 | 2019-08-23 | Internal middle and external three-shielding transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110517871B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113130176B (en) * | 2021-04-23 | 2023-02-21 | 山东泰开检测有限公司 | High-voltage harmonic transformer |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1080320A (en) * | 1964-09-19 | 1967-08-23 | Siemens Ag | Electrical transformers |
| DE3110427A1 (en) * | 1981-03-18 | 1982-11-25 | Sachße, Brigitte, 8500 Nürnberg | Annular core-transformer-repeating coil-inductor |
| WO1992003834A1 (en) * | 1990-08-17 | 1992-03-05 | Raychem Corporation | High voltage isolation transformer |
| CN2299382Y (en) * | 1997-05-10 | 1998-12-02 | 李福廷 | Resin pouring annular transformer |
| DE19947917A1 (en) * | 1999-10-06 | 2001-04-12 | Abb Research Ltd | Transformer has high voltage side enclosed at least in partly by low voltage side with coaxial inner conductor, tube forming housing with bridging cap connected to conductor |
| CN201489996U (en) * | 2009-06-24 | 2010-05-26 | 安徽华能集团电器有限公司 | Press type outdoor three-phase anti power-stealing low voltage combined transformer |
| CN202120744U (en) * | 2011-03-04 | 2012-01-18 | 苏州正意电材股份有限公司 | Filling and sealing structure of toroidal transformer |
| CN202120747U (en) * | 2011-06-24 | 2012-01-18 | 河北申科电子股份有限公司 | Current transformer with function of resisting direct current component |
| CN102360862A (en) * | 2011-10-26 | 2012-02-22 | 宁波中策亿特电子有限公司 | High-power annular transformer |
| CN206225188U (en) * | 2016-11-24 | 2017-06-06 | 江苏东方四通科技股份有限公司 | A kind of low voltage heavy current transformer |
| CN107331498A (en) * | 2016-04-28 | 2017-11-07 | 王大彦 | A kind of toroidal transformer of magnetic shielding cylinder embedding |
| CN208861802U (en) * | 2019-01-15 | 2019-05-14 | 佛山金志通电子科技有限公司 | A kind of transformer easy to use |
| CN210378731U (en) * | 2019-08-23 | 2020-04-21 | 无锡爱邦辐射技术有限公司 | Internal, middle and external three-shielding transformer |
-
2019
- 2019-08-23 CN CN201910754690.2A patent/CN110517871B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1080320A (en) * | 1964-09-19 | 1967-08-23 | Siemens Ag | Electrical transformers |
| DE3110427A1 (en) * | 1981-03-18 | 1982-11-25 | Sachße, Brigitte, 8500 Nürnberg | Annular core-transformer-repeating coil-inductor |
| WO1992003834A1 (en) * | 1990-08-17 | 1992-03-05 | Raychem Corporation | High voltage isolation transformer |
| CN2299382Y (en) * | 1997-05-10 | 1998-12-02 | 李福廷 | Resin pouring annular transformer |
| DE19947917A1 (en) * | 1999-10-06 | 2001-04-12 | Abb Research Ltd | Transformer has high voltage side enclosed at least in partly by low voltage side with coaxial inner conductor, tube forming housing with bridging cap connected to conductor |
| CN201489996U (en) * | 2009-06-24 | 2010-05-26 | 安徽华能集团电器有限公司 | Press type outdoor three-phase anti power-stealing low voltage combined transformer |
| CN202120744U (en) * | 2011-03-04 | 2012-01-18 | 苏州正意电材股份有限公司 | Filling and sealing structure of toroidal transformer |
| CN202120747U (en) * | 2011-06-24 | 2012-01-18 | 河北申科电子股份有限公司 | Current transformer with function of resisting direct current component |
| CN102360862A (en) * | 2011-10-26 | 2012-02-22 | 宁波中策亿特电子有限公司 | High-power annular transformer |
| CN107331498A (en) * | 2016-04-28 | 2017-11-07 | 王大彦 | A kind of toroidal transformer of magnetic shielding cylinder embedding |
| CN206225188U (en) * | 2016-11-24 | 2017-06-06 | 江苏东方四通科技股份有限公司 | A kind of low voltage heavy current transformer |
| CN208861802U (en) * | 2019-01-15 | 2019-05-14 | 佛山金志通电子科技有限公司 | A kind of transformer easy to use |
| CN210378731U (en) * | 2019-08-23 | 2020-04-21 | 无锡爱邦辐射技术有限公司 | Internal, middle and external three-shielding transformer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110517871A (en) | 2019-11-29 |
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