CN111489885B - Variable-voltage coil structure - Google Patents
Variable-voltage coil structure Download PDFInfo
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- CN111489885B CN111489885B CN201910070848.4A CN201910070848A CN111489885B CN 111489885 B CN111489885 B CN 111489885B CN 201910070848 A CN201910070848 A CN 201910070848A CN 111489885 B CN111489885 B CN 111489885B
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- 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
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- 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
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- 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
- H01F27/2804—Printed windings
-
- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Coils Of Transformers For General Uses (AREA)
Abstract
The utility model provides a vary voltage coil structure, includes winding structure and wire unit, winding structure includes winding core, first to sixth electrode, and sets up in order and interval at winding core's fourth, first, second, and third baffle, through first to fourth baffle will winding core is distinguished into first to third wire winding portion, first to third electrode sets up fourth baffle, the second electrode sets up first baffle, sixth electrode sets up second baffle, fourth and fifth electrode sets up third baffle, wire unit includes first wire group and second wire group, first wire group has first and third wire, second wire group has second and fourth wire, first wire group winds first and second wire winding portion, and the electrical connection first, third, and sixth electrode, second wire group winds in second and third wire winding portion, and the electrical connection second, fourth and fifth electrode.
Description
Technical Field
The present disclosure relates to coil structures, and particularly to a transformer coil structure.
Background
Transformers disposed on printed circuit boards are often used for signal processing or noise filtering to provide stable signal transmission over the wiring of the printed circuit board. Such transformers may include a transformer and a common mode filter (common mode choke), and the conventional method of manufacturing the transformer and the common mode filter is to form the transformer by two or more winding cores which are separated from each other and a plurality of enameled wires wound on the winding cores, in other words, the transformer is made of one or more separate and independent coils, the common mode filter is made of another one or more separate and independent coils, the manufacturing process is time-consuming, and the plurality of independent coils have a problem of material cost.
Disclosure of Invention
The invention aims to provide a transformer coil structure, which solves the problems that more than two separate and independent coils are needed for manufacturing a traditional transformer, and the manufacturing is time-consuming and high in cost.
The invention provides a transformer coil structure, which comprises a winding structure and a wire unit, wherein the winding structure comprises a winding core, a first electrode, a second electrode, a third electrode, a fourth electrode, a fifth electrode, a sixth electrode, a fourth separator, a first separator, a second separator and a third separator which are sequentially and alternately arranged on the winding core, the first separator and the fourth separator divide the winding core into a first winding part, the first separator and the second separator divide the winding core into a second winding part, the second separator and the third separator divide the winding core into a third winding part, the first electrode and the third electrode are arranged on the fourth separator, the second electrode is arranged on the first separator, the sixth electrode is arranged on the second separator, the fourth electrode and the fifth electrode are arranged on the third separator, the wire unit comprises a first wire group and a second wire group, the first wire group is provided with a first wire and a third wire, the second wire group is provided with a second wire and a fourth wire, the first wire, the second wire, the third wire and the fourth wire are respectively provided with a conductive core part and an insulated outer wrapping part which wraps the core parts of the first wire group and the second wire group, one end of the core part of the first wire is electrically connected with the first electrode, the other end of the core part of the first wire is electrically connected with the sixth electrode, one end of the core part of the third wire is electrically connected with the third electrode, the other end of the core part of the third wire is electrically connected with the sixth electrode, one end of the core part of the second wire is electrically connected with the second electrode, the other end of the core of the second wire is electrically connected with the fourth electrode, one end of the core of the fourth wire is electrically connected with the second electrode, and the other end of the core of the fourth wire is electrically connected with the fifth electrode.
The first wire set wound around the first winding portion and the second winding portion forms a plurality of inductors on a primary side, and the second wire set wound around the second winding portion and the third winding portion forms a plurality of inductors on a secondary side.
The second wire set wound around the second winding portion and the third winding portion forms a plurality of inductors on a primary side, and the first wire set wound around the first winding portion and the second winding portion forms a plurality of inductors on a secondary side.
Defining that one end of the fourth partition board is connected with the winding core, the direction from the winding core to the other end of the winding core is a first winding direction, the winding direction of the first wire and the third wire along the first winding direction at the first winding part is the same, and the winding direction along the first winding direction at the second winding part is opposite.
Defining that one end of the third partition board is connected with the winding core, the direction from the winding core to the other end of the winding core is a second winding direction, the second wire and the fourth wire are in the same winding direction of the third winding part along the second winding direction, and the winding directions of the second winding part along the second winding direction are opposite.
The winding direction of the first wire and the second wire at the second winding part is opposite.
In the transformer coil structure of the invention, the first electrode, the second electrode and the third electrode are positioned on the same plane.
The invention has the following effects: the first lead group and the second lead group are wound on the winding structure, so that the manufacturing procedure of the filter transformer is effectively simplified, the number of independent coils of the filter transformer is reduced, and the manufacturing cost is reduced.
Drawings
Other features and advantages of the present invention will become apparent from the following description of the embodiments with reference to the drawings, in which:
FIG. 1 is a top view illustrating how a plurality of wires are wound around a winding structure according to a preferred embodiment of the transformer coil structure of the present invention;
FIG. 2 is a perspective view of a winding structure according to the preferred embodiment;
FIG. 3 is an equivalent circuit diagram of the preferred embodiment; and
Fig. 4 is an equivalent circuit diagram of another preferred embodiment.
Detailed Description
Before the present invention is described in detail, it should be noted that in the following description, like components are denoted by the same reference numerals.
Referring to fig. 1 and 2, the transformer coil structure of the present invention includes a winding structure 2 around which a plurality of wires are wound, and a wire unit having a plurality of wires.
The winding structure 2 includes a winding core 21, a first separator 22, a second separator 23, a third separator 24, a fourth separator 31, a first electrode 25 disposed on the fourth separator 31, a second electrode 26 disposed on the first separator 22, a third electrode 27 disposed on the fourth separator 31, a fourth electrode 28 disposed on the third separator 24, a fifth electrode 29 disposed on the third separator 24, and a sixth electrode 30 disposed on the second separator 23.
The fourth separator 31, the first separator 22, the second separator 23, and the third separator 24 are sequentially and intermittently disposed on the winding core 21, the fourth separator 31 and the first separator 22 separate the winding core 21 by a first winding portion 211, the first separator 22 and the second separator 23 separate the winding core 21 by a second winding portion 212, and the second separator 23 and the third separator 24 separate the winding core 21 by a third winding portion 213.
The winding structure 2 may be an integrally formed iron structure, or may be a combined structure including the winding core 21 and four flanges (Flange) of the first separator 22, the second separator 23, the third separator 24, and the fourth separator 31, respectively, in this embodiment, the winding core 21 is an elongated iron core with a square cross section, and the first separator 22, the second separator 23, the third separator 24, and the fourth separator 31 are square flanges, but not limited thereto. In other embodiments, the first separator 22, the second separator 23, the third separator 24, and the fourth separator 31 may be flanges with different shapes such as square, hexagonal, octasquare, or circular, and the winding core 21 may be a circular iron core or other metal materials.
In this embodiment, the first electrode 25 and the third electrode 27 are disposed on a top side of the fourth separator 31, and the first electrode 25 is near a front edge of the top side, and the third electrode 27 is near a rear edge of the top side.
The second electrode 26 is disposed on a top side of the first separator 22 near a trailing edge of the top side.
The fourth electrode 28 and the fifth electrode 29 are disposed on a top side of the third separator 24, and the fourth electrode 28 is near a front edge of the top side, and the fifth electrode 29 is near a rear edge of the top side.
The sixth electrode 30 is disposed on a top side of the second separator 23 near a front edge of the top side.
The dimensions (length/width/height) of the first separator 22 and the second separator 23 are the same, the length of the long side of the third separator 24 (i.e., the length of the separator), and the length of the long side of the fourth separator 31 (i.e., the length of the separator) are smaller than the length of the long side of the first separator 22, in this embodiment, the lengths of the third separator 24 and the fourth separator 31 are 0.7 times the length of the first separator 22, and the widths and heights of the third separator 24 and the fourth separator 31 are the same as the widths and heights of the first separator 22, so that the top side of the first separator 22, the top side of the second separator 23, the top side of the third separator 24, and the top side of the fourth separator 31 are all on the same horizontal plane, and the first electrode 25, the second electrode 26, the third electrode 27, the fourth electrode 28, the fifth electrode 29, and the sixth electrode 30 are on the same plane. In other embodiments, the first to sixth electrodes 25 to 30 may be disposed on different sides of the first, second, third, and fourth separators 22, 23, 24, 31 as desired.
The wire unit comprises a first wire set and a second wire set, in this embodiment, the first wire set is a primary wire, the second wire set is a secondary wire, the primary wire and the secondary wire both have at least one wire, and each wire has a conductive core and an insulating outer wrapping part wrapping the core. Since the winding structure 2 and the wire units are symmetrically structured and symmetrically wound, in another embodiment, the second wire set may be a primary wire and the first wire set may be a secondary wire.
In this embodiment, the primary wire has a first wire W1 and a third wire W3, the secondary wire has a second wire W2 and a fourth wire W4, and the core of each wire is copper wire and the insulated outer wrapping portion is an electroplated insulator wrapping the copper wire, but not limited thereto.
One end of the winding core 21 connected to the fourth separator 31 is defined as a first winding end (not shown), the other end of the winding core 21 connected to the third separator 24 is defined as a second winding end (not shown), a first winding direction is defined from the first winding end to the second winding end, and a second winding direction is defined from the second winding end to the first winding end.
One end of the core of the first wire W1 is electrically connected (welded) to the first electrode 25, and is wound around the first winding portion 211 counterclockwise along the first winding direction, and after crossing the first separator 22, is continuously wound around the second winding portion 212 counterclockwise along the first winding direction, so that the other end of the core of the first wire W1 is electrically connected (welded) to the sixth electrode 30, wherein the electrical connection between the wire and the electrode may be, but is not limited to, a welding or threading connection. In another embodiment (not shown), one end of the first wire W1 may be electrically connected (welded) to the first electrode 25, and the first wire W1 may be wound around the first winding portion 211 clockwise in the first winding direction and then further wound around the second winding portion 212 clockwise in the first winding direction after crossing the first separator 22, so that the other end of the first wire W1 may be electrically connected (welded) to the sixth electrode 30.
One end of the core of the third wire W3 is electrically connected (welded) to the third electrode 27, and is wound around the first winding portion 211 counterclockwise along the first winding direction, and is wound around the second winding portion 212 clockwise along the first winding direction after crossing the first separator 22, so that the other end of the core of the third wire W3 is electrically connected (welded) to the sixth electrode 30, but not limited thereto. In the other embodiment, one end of the third wire W3 may be electrically connected (welded) to the third electrode 27, and may be wound around the first winding portion 211 clockwise in the first winding direction, and may be wound around the second winding portion 212 counterclockwise in the first winding direction after crossing the first separator 22, so that the other end of the third wire W3 may be electrically connected (welded) to the sixth electrode 30. In other words, the first wire W1 and the third wire W3 have the same winding direction at the first winding portion 211 along the first winding direction, but have opposite winding directions at the second winding portion 212 along the first winding direction.
One end of the core of the second wire W2 is electrically connected (welded) to the fourth electrode 28, and is wound around the third winding portion 213 clockwise along the second winding direction, and is wound around the second winding portion 212 clockwise along the second winding direction after crossing the second separator 23, so that the other end of the core of the second wire W2 is electrically connected (welded) to the second electrode 26, but not limited thereto. In the other embodiment, one end of the second wire W2 may be electrically connected (soldered) to the fourth electrode 28, and the other end of the second wire W2 may be electrically connected (soldered) to the second electrode 26 after being wound around the third winding portion 213 counterclockwise in the second winding direction and further wound around the second winding portion 212 counterclockwise in the second winding direction after being wound across the second separator 23. In other words, the winding direction of the first wire W1 and the second wire W2 in the first winding direction at the second winding portion 212 is opposite, or the winding direction of the first wire W1 and the second wire W2 in the first winding direction at the second winding portion 212 is the same.
One end of the core of the fourth wire W4 is electrically connected (welded) to the fifth electrode 29, and is wound around the third winding portion 213 clockwise in the second winding direction, and is wound around the second winding portion 212 counterclockwise after crossing the second separator 23, so that the other end of the core of the fourth wire W4 is electrically connected (welded) to the second electrode 26, but not limited thereto. In the other embodiment, one end of the fourth wire W4 may be electrically connected (soldered) to the fifth electrode 29, and may be wound around the third winding portion 213 counterclockwise in the second winding direction, and may be wound around the second winding portion 212 clockwise after crossing the second separator 23, so that the other end of the fourth wire W4 may be electrically connected (soldered) to the second electrode 26. In other words, the second wire W2 and the fourth wire W4 have the same winding direction in the third winding portion 213 along the second winding direction, and have opposite winding directions in the second winding portion 212 along the second winding direction.
Referring to fig. 1 and 3, fig. 3 is an equivalent circuit diagram of the present embodiment, which is wound around the first winding portion 211 and the second winding portion 212, and the two ends of the first wire W1 of the first electrode 25 and the sixth electrode 30 are electrically connected (welded) to form a first transformer inductance on the primary side and a first filter inductance for common mode filtering on the primary side. The third wires W3 wound around the first winding portion 211 and the second winding portion 212 and having both ends electrically connected (welded) to the third electrode 27 and the sixth electrode 30 form a second transformer inductance on the primary side and a second filter inductance for common mode filtering on the primary side. The sixth electrode 30 is a center tap of the primary side.
The second wire W2 wound around the second winding portion 212 and the third winding portion 213 and having both ends electrically connected (welded) to the second electrode 26 and the fourth electrode 28 forms a first transformer inductance on the secondary side and a first filter inductance for common mode filtering on the secondary side. The fourth wire W4 wound around the second winding portion 212 and the third winding portion 213 and having both ends electrically connected (welded) to the second electrode 26 and the fifth electrode 29 forms a second transformer inductance on the secondary side and a second filter inductance for common mode filtering on the secondary side. The second electrode 26 is a center tap of the secondary side.
Referring to fig. 1 and 4, fig. 4 is an equivalent circuit diagram of another preferred embodiment, which is different from the foregoing preferred embodiment in that the first wire set forms a first transformer inductance, a second transformer inductance, a first filter inductance, and a second filter inductance of the secondary side, and the second wire set forms a first transformer inductance, a second transformer inductance, a first filter inductance, and a second filter inductance of the primary side.
In summary, the above embodiment has the following advantages:
the advantage one, use winding structure 2 and wire unit with many wires, reach single coil group and realize a transformer and common mode filter of integration, effectively reduce independent coil quantity, solve the problem of high cost.
The second advantage is that the first wire set is wound around the first winding portion 211 and the second winding portion 212, and the second wire set is wound around the second winding portion 212 and the third winding portion 213, so as to realize multiple inductances of the primary-side transformer and common-mode filter, and multiple inductances of the secondary-side transformer and common-mode filter, thereby effectively reducing manufacturing procedures and solving the problem of time consumption in manufacturing.
The foregoing is merely illustrative of the present invention and, as such, is not intended to limit the scope of the invention, but rather is intended to cover all modifications and variations within the scope of the present invention as defined by the appended claims and their equivalents.
Claims (2)
1. A transformer coil structure, characterized in that: the transformer coil structure comprises
The winding structure comprises a winding core, a first electrode, a second electrode, a third electrode, a fourth electrode, a fifth electrode and a sixth electrode, and a fourth separator, a first separator, a second separator and a third separator which are sequentially and alternately arranged on the winding core, wherein the first separator and the fourth separator divide the winding core into a first winding part, the first separator and the second separator divide the winding core into a second winding part, the second separator and the third separator divide the winding core into a third winding part, the first electrode and the third electrode are arranged on the fourth separator, the second electrode is arranged on the first separator, the sixth electrode is arranged on the second separator, and the fourth electrode and the fifth electrode are arranged on the third separator; and
A wire unit including a first wire set and a second wire set, the first wire set having a first wire and a third wire, the second wire set having a second wire and a fourth wire, the first wire, the second wire, the third wire, and the fourth wire each having a conductive core and an insulating outer wrapping portion wrapping a core thereof, the first wire set being wrapped around the first winding portion and the second winding portion, one end of the core of the first wire being electrically connected to the first electrode, the other end of the core of the first wire being electrically connected to the sixth electrode, one end of the core of the third wire being electrically connected to the third electrode, the other end of the core of the third wire being electrically connected to the sixth electrode, the second wire set being wrapped around the second winding portion and the third winding portion, and one end of the core of the second wire being electrically connected to the second electrode, the other end of the core of the second wire being electrically connected to the fourth electrode;
Winding a first wire set of the first winding part and the second winding part to form a plurality of inductors on a primary side, and winding a second wire set of the second winding part and the third winding part to form a plurality of inductors on a secondary side;
Defining a first winding direction from one end of the winding core connected with the fourth partition board to the other end of the winding core, wherein the winding direction of the first wire and the third wire in the first winding part along the first winding direction is the same, and the winding direction of the first wire and the third wire in the second winding part along the first winding direction is opposite;
defining a second winding direction from one end of the winding core connected with the third partition board to the other end of the winding core, wherein the winding direction of the second wire and the fourth wire in the third winding part along the second winding direction is the same, and the winding direction of the second wire in the second winding part along the second winding direction is opposite;
The winding direction of the first wire and the second wire at the second winding part is opposite;
The first to sixth electrodes are located on the same plane.
2. A transformer coil structure, characterized in that: the transformer coil structure comprises
The winding structure comprises a winding core, a first electrode, a second electrode, a third electrode, a fourth electrode, a fifth electrode and a sixth electrode, and a fourth separator, a first separator, a second separator and a third separator which are sequentially and alternately arranged on the winding core, wherein the first separator and the fourth separator divide the winding core into a first winding part, the first separator and the second separator divide the winding core into a second winding part, the second separator and the third separator divide the winding core into a third winding part, the first electrode and the third electrode are arranged on the fourth separator, the second electrode is arranged on the first separator, the sixth electrode is arranged on the second separator, and the fourth electrode and the fifth electrode are arranged on the third separator; and
A wire unit including a first wire set and a second wire set, the first wire set having a first wire and a third wire, the second wire set having a second wire and a fourth wire, the first wire, the second wire, the third wire, and the fourth wire each having a conductive core and an insulating outer wrapping portion wrapping a core thereof, the first wire set being wrapped around the first winding portion and the second winding portion, one end of the core of the first wire being electrically connected to the first electrode, the other end of the core of the first wire being electrically connected to the sixth electrode, one end of the core of the third wire being electrically connected to the third electrode, the other end of the core of the third wire being electrically connected to the sixth electrode, the second wire set being wrapped around the second winding portion and the third winding portion, and one end of the core of the second wire being electrically connected to the second electrode, the other end of the core of the second wire being electrically connected to the fourth electrode;
Winding the second wire set of the second winding part and the third winding part to form a plurality of inductors on a primary side, and winding the first wire set of the first winding part and the second winding part to form a plurality of inductors on a secondary side;
Defining a first winding direction from one end of the winding core connected with the fourth partition board to the other end of the winding core, wherein the winding direction of the first wire and the third wire in the first winding part along the first winding direction is the same, and the winding direction of the first wire and the third wire in the second winding part along the first winding direction is opposite;
defining a second winding direction from one end of the winding core connected with the third partition board to the other end of the winding core, wherein the winding direction of the second wire and the fourth wire in the third winding part along the second winding direction is the same, and the winding direction of the second wire in the second winding part along the second winding direction is opposite;
The winding direction of the first wire and the second wire at the second winding part is opposite;
The first to sixth electrodes are located on the same plane.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910070848.4A CN111489885B (en) | 2019-01-25 | 2019-01-25 | Variable-voltage coil structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910070848.4A CN111489885B (en) | 2019-01-25 | 2019-01-25 | Variable-voltage coil structure |
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| Publication Number | Publication Date |
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| CN111489885A CN111489885A (en) | 2020-08-04 |
| CN111489885B true CN111489885B (en) | 2024-10-18 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN209199753U (en) * | 2019-01-25 | 2019-08-02 | 广州成汉电子科技有限公司 | Transformation loop construction |
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| JP2017126634A (en) * | 2016-01-13 | 2017-07-20 | Tdk株式会社 | Coil component |
| JP2018060913A (en) * | 2016-10-05 | 2018-04-12 | Tdk株式会社 | Pulse transformer |
| TWI650782B (en) * | 2018-08-01 | 2019-02-11 | 西北臺慶科技股份有限公司 | Integrated multi-inductor component |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN209199753U (en) * | 2019-01-25 | 2019-08-02 | 广州成汉电子科技有限公司 | Transformation loop construction |
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Effective date of registration: 20240905 Address after: 621000 Comprehensive Bonded Zone of Mianyang High tech Industrial Development Zone, Puming Street, High tech Zone, Mianyang City, Sichuan Province Applicant after: MIANYANG PULSE ELECTRONIC CO.,LTD. Country or region after: China Address before: 510370 floors 1, 2, 4, block 4, 1-4, block 3, No. 38, North Wai, Zhaocun, Liwan District, Guangzhou City, Guangdong Province Applicant before: GUANGZHOU CHENGHAN ELECTRONIC TECHNOLOGY CO.,LTD. Country or region before: China |
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