CN107768095B - High-voltage-resistant transformer - Google Patents
High-voltage-resistant transformer Download PDFInfo
- Publication number
- CN107768095B CN107768095B CN201711210396.2A CN201711210396A CN107768095B CN 107768095 B CN107768095 B CN 107768095B CN 201711210396 A CN201711210396 A CN 201711210396A CN 107768095 B CN107768095 B CN 107768095B
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- Prior art keywords
- winding
- terminal electrode
- center tap
- flange
- transformer
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- 238000004804 winding Methods 0.000 claims abstract description 104
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 14
- 238000010586 diagram Methods 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 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
- H01F27/29—Terminals; Tapping arrangements for signal inductances
- H01F27/292—Surface mounted devices
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Coils Or Transformers For Communication (AREA)
- Coils Of Transformers For General Uses (AREA)
Abstract
The invention relates to a high-voltage-resistant transformer, which comprises an iron core and a coil formed by first to fourth windings, wherein the iron core is provided with a first flange, a second flange and a middle flange, the first flange is respectively provided with a first terminal electrode and a second terminal electrode, the second flange is respectively provided with a third terminal electrode and a fourth terminal electrode, the middle flange is respectively provided with a first center tap and a second center tap, the first winding is respectively connected with the first terminal electrode and the first center tap, the second winding is respectively connected with the first center tap and the third terminal electrode, the third winding is respectively connected with the second terminal electrode and the second center tap, and the fourth winding is respectively connected with the second center tap and the fourth terminal electrode.
Description
[ field of technology ]
The invention relates to a high-voltage-resistant transformer, and belongs to the technical field of transformers.
[ background Art ]
Fig. 1 shows a conventional transformer structure in which a pair of primary terminal electrodes 12a and 12b and a secondary center tap 12C are provided on a first flange 10 on one side of a drum core, a pair of secondary terminal electrodes 13a and 13b and a primary center tap 13C are provided on a second flange 11 on the other side, and a pair of coils of the transformer is constituted by four windings C1 to C4, wherein the windings C1 and C2 constitute a primary coil, the windings C3 and C4 constitute a secondary coil, both ends of the winding C1 are connected to the primary terminal electrode 12a and the primary center tap 13C, both ends of the winding C2 are connected to the primary terminal electrode 12b and the primary center tap 13C, both ends of the winding C3 are connected to the secondary center tap 12C and the secondary terminal electrode 13b, and both ends of the winding C4 are connected to the secondary center tap 12C and the secondary terminal electrode 13a. The distance between the primary side terminal electrode 12b and the secondary side center tap 12c is the distance between the primary side coil and the secondary side coil of the conventional transformer, and this distance is significantly smaller than the length of the first flange 10, so that the voltage withstand safety distance (also called Hi-post safety distance, where Hi-post is short for High Potential) is significantly smaller on the premise that the transformer size is fixed, resulting in poor High voltage withstand characteristics of the transformer. In addition, the transformer structure disclosed in taiwan patent No. M531040 has the same problems.
Therefore, how to improve the above-mentioned shortcomings is the technical difficulty to be solved by the present inventor.
[ invention ]
The invention aims at: aiming at the defects and shortcomings of the prior art, the high-voltage-resistant transformer is provided.
In order to achieve the above object, the present invention adopts a technical scheme that a high voltage resistant transformer includes:
the iron core is provided with a winding part and a pair of first flanges and second flanges which are respectively connected with two ends of the winding part, wherein the two sides of the top surface of the first flange are respectively provided with a first terminal electrode and a second terminal electrode, the two sides of the top surface of the second flange are respectively provided with a third terminal electrode and a fourth terminal electrode in the same direction sequence, the iron core extends to the periphery at the middle position of the winding part to form a middle flange, and the two sides of the top surface of the middle flange are respectively provided with a first center tap and a second center tap in the same direction sequence;
a first winding wound around the winding portion, and having a first end and a second end connected to the first terminal electrode and the first center tap, respectively;
a second winding wound around the winding portion, wherein a first end and a second end of the second winding are respectively connected to the first center tap and the third terminal electrode;
a third winding wound around the winding portion, wherein the first end and the second end of the third winding are respectively connected to the second terminal electrode and the second center tap;
and a fourth winding wound around the winding part, wherein the first end and the second end of the fourth winding are respectively connected to the second center tap and the fourth terminal electrode.
In the present invention: the iron core is characterized by further comprising a cover plate, wherein the cover plate is fixedly arranged on the bottom surface of each flange of the iron core respectively.
In the present invention: the winding directions of the first winding and the second winding are the same as those of the third winding and the fourth winding.
In the present invention: the winding directions of the first winding and the second winding are opposite to those of the third winding and the fourth winding.
After the structure is adopted, the invention has the beneficial effects that: the invention has simple structure and reasonable design, increases the withstand voltage safety distance of the transformer, has better high-voltage resistance, and can greatly improve the practicability of the transformer.
[ description of the drawings ]
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate and together with the description serve to explain the invention, if necessary:
FIG. 1 is a schematic diagram of a prior art transformer;
FIG. 2 is a schematic perspective view of a first embodiment of the present invention;
FIG. 3 is a schematic top view of a first embodiment of the present invention;
FIG. 4 is a schematic diagram of an equivalent circuit of a first embodiment of the present invention;
fig. 5 is a schematic perspective view of a second embodiment of the present invention.
In the figure: 3. an iron core; 31. a winding part; 32. a first flange; 33. a second flange; 34. an intermediate flange; 51. a first terminal electrode; 52. a second terminal electrode; 53. a third terminal electrode; 54. a fourth terminal electrode; 55. a first center tap; 56. a second center tap; s1, a first winding; s2, a second winding; s3, a third winding; s4, a fourth winding; s1 a-S4 a, a first end; s1 b-S4 b and a second end.
[ detailed description ] of the invention
The present invention will now be described in detail with reference to the drawings and the specific embodiments thereof, wherein the exemplary embodiments and the description are for the purpose of illustrating the invention only and are not to be construed as limiting the invention.
As shown in fig. 2 and 3, a perspective view and a top view of a first embodiment of the present invention are a high voltage tolerant transformer, which includes: an iron core 3, the iron core 3 has a winding part 31 and a pair of first flange 32 and second flange 33 connected to both ends of the winding part 31 respectively, the top surface both sides of the first flange 32 are provided with a first terminal electrode 51 and a second terminal electrode 52 respectively, the top surface both sides of the second flange 33 are provided with a third terminal electrode 53 and a fourth terminal electrode 54 respectively in the same direction sequence, in addition, the middle position of the iron core 3 and the winding part 31 extends to the periphery to form a middle flange 34, the top surface both sides of the middle flange 34 are provided with a first center tap 55 and a second center tap 56 respectively in the same direction sequence, wherein, each terminal electrode and each center tap can be conductive silver colloid specifically;
a first winding S1, wherein the first winding S1 is wound around the winding portion 31 of the core 3, and a first end S1a and a second end S1b of the first winding S1 are connected to the first terminal electrode 51 and the first center tap 55, respectively;
a second winding S2, wherein the second winding S2 is wound around the winding portion 31 of the core 3, and a first end S2a and a second end S2b of the second winding S2 are respectively connected to the first center tap 55 and the third terminal electrode 53;
a third winding S3, wherein the third winding S2 is wound around the winding portion 31 of the core 3, and a first end S3a and a second end S3b of the third winding S3 are connected to the second terminal electrode 52 and the second center tap 56, respectively;
a fourth winding S4, wherein the fourth winding S4 is wound around the winding portion 31 of the core 3, and the first end S4a and the second end S4b of the fourth winding S4 are respectively connected to the second center tap 56 and the fourth terminal electrode 54;
as shown in fig. 4, for the present invention, the first winding S1 and the second winding S2 constitute a primary winding of a transformer, the third winding S3 and the fourth winding S4 constitute a secondary winding of the transformer, the first terminal electrode 51 and the third terminal electrode 53 constitute two input terminals of the primary side, the second terminal electrode 52 and the fourth terminal electrode 54 constitute two output terminals of the secondary side, and the first center tap 55 and the second center tap 56 are used as center taps (center taps) of the primary side and the secondary side, respectively;
in addition, it may be mentioned that, when the first winding S1 and the second winding S2, which are primary windings of the transformer, are wound in a first winding direction (forward direction), the third winding S3 and the fourth winding S4, which are secondary windings of the transformer, may be wound in the first winding direction as well, or the third winding S3 and the fourth winding S4 may be wound in a second winding direction (reverse direction) opposite to the first winding direction;
referring to fig. 2 and 3, with the above-mentioned structure, the distance between the primary winding and the secondary winding of the transformer is the distance from the first center tap 55 to the second center tap 56, and the distance is equal to the length of the entire middle flange 34.
Please refer to fig. 5, which is a perspective view of a second embodiment of the present invention, wherein a high voltage transformer further comprises a cover plate 6, and the cover plate 6 is respectively combined with (e.g. adhered to) the bottom surface of each of the flanges (i.e. the first flange 32, the second flange 33 and the middle flange 34) of the iron core 3, so that the present invention has a higher inductance value and is convenient for the SMT equipment to mount, and the present invention has better practicability.
The foregoing description is only of the preferred embodiments of the invention, and all changes and modifications that come within the meaning and range of equivalency of the structures, features and principles of the invention are therefore intended to be embraced therein.
Claims (3)
1. A high voltage tolerant transformer, characterized by: comprising the following steps:
the iron core is provided with a winding part and a pair of first flanges and second flanges which are respectively connected with two ends of the winding part, wherein the two sides of the top surface of the first flange are respectively provided with a first terminal electrode and a second terminal electrode, the two sides of the top surface of the second flange are respectively provided with a third terminal electrode and a fourth terminal electrode in the same direction sequence, the iron core extends to the periphery at the middle position of the winding part to form a middle flange, and the two sides of the top surface of the middle flange are respectively provided with a first center tap and a second center tap in the same direction sequence;
a first winding wound around the winding portion, and having a first end and a second end connected to the first terminal electrode and the first center tap, respectively;
a second winding wound around the winding portion, wherein a first end and a second end of the second winding are respectively connected to the first center tap and the third terminal electrode;
a third winding wound around the winding portion, wherein the first end and the second end of the third winding are respectively connected to the second terminal electrode and the second center tap;
a fourth winding wound around the winding portion, wherein a first end and a second end of the fourth winding are connected to the second center tap and the fourth terminal electrode, respectively;
and the cover plate is fixedly arranged on the bottom surface of each flange of the iron core respectively.
2. A high voltage tolerant transformer according to claim 1, characterized in that: the winding directions of the first winding and the second winding are the same as those of the third winding and the fourth winding.
3. A high voltage tolerant transformer according to claim 1, characterized in that: the winding directions of the first winding and the second winding are opposite to those of the third winding and the fourth winding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711210396.2A CN107768095B (en) | 2017-11-28 | 2017-11-28 | High-voltage-resistant transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711210396.2A CN107768095B (en) | 2017-11-28 | 2017-11-28 | High-voltage-resistant transformer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107768095A CN107768095A (en) | 2018-03-06 |
| CN107768095B true CN107768095B (en) | 2024-01-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711210396.2A Active CN107768095B (en) | 2017-11-28 | 2017-11-28 | High-voltage-resistant transformer |
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| CN (1) | CN107768095B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW202008402A (en) * | 2018-07-20 | 2020-02-16 | 西北臺慶科技股份有限公司 | Network signal processing module with integrated coil structure |
| TWI655647B (en) * | 2018-07-20 | 2019-04-01 | 西北臺慶科技股份有限公司 | Integrated coil structure |
| TWI650782B (en) * | 2018-08-01 | 2019-02-11 | 西北臺慶科技股份有限公司 | Integrated multi-inductor component |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007335453A (en) * | 2006-06-12 | 2007-12-27 | Sumida Corporation | High-voltage transformer |
| JP2010130312A (en) * | 2008-11-27 | 2010-06-10 | Tdk Corp | Surface-mount pulse transformer, and surface-mount pulse transformer with common mode filter |
| CN104078198A (en) * | 2013-03-29 | 2014-10-01 | Tdk株式会社 | Pulse transformer |
| CN104103402A (en) * | 2013-04-01 | 2014-10-15 | 台达电子工业股份有限公司 | Transformer |
| JP2016174058A (en) * | 2015-03-17 | 2016-09-29 | 株式会社村田製作所 | Wire-wound chip transformer and distributor |
| CN206040377U (en) * | 2016-07-26 | 2017-03-22 | 西北台庆科技股份有限公司 | Transformer that can conveniently make |
| CN207704993U (en) * | 2017-11-28 | 2018-08-07 | 庆邦电子元器件(泗洪)有限公司 | A kind of high voltage bearing transformer device structure |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4737268B2 (en) * | 2008-10-31 | 2011-07-27 | Ｔｄｋ株式会社 | Surface mount pulse transformer and method and apparatus for manufacturing the same |
-
2017
- 2017-11-28 CN CN201711210396.2A patent/CN107768095B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007335453A (en) * | 2006-06-12 | 2007-12-27 | Sumida Corporation | High-voltage transformer |
| JP2010130312A (en) * | 2008-11-27 | 2010-06-10 | Tdk Corp | Surface-mount pulse transformer, and surface-mount pulse transformer with common mode filter |
| CN104078198A (en) * | 2013-03-29 | 2014-10-01 | Tdk株式会社 | Pulse transformer |
| CN104103402A (en) * | 2013-04-01 | 2014-10-15 | 台达电子工业股份有限公司 | Transformer |
| JP2016174058A (en) * | 2015-03-17 | 2016-09-29 | 株式会社村田製作所 | Wire-wound chip transformer and distributor |
| CN206040377U (en) * | 2016-07-26 | 2017-03-22 | 西北台庆科技股份有限公司 | Transformer that can conveniently make |
| CN207704993U (en) * | 2017-11-28 | 2018-08-07 | 庆邦电子元器件(泗洪)有限公司 | A kind of high voltage bearing transformer device structure |
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| Publication number | Publication date |
|---|---|
| CN107768095A (en) | 2018-03-06 |
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