CN114464431B - Transformer device for reducing magnetic field interference - Google Patents
Transformer device for reducing magnetic field interference Download PDFInfo
- Publication number
- CN114464431B CN114464431B CN202011238267.6A CN202011238267A CN114464431B CN 114464431 B CN114464431 B CN 114464431B CN 202011238267 A CN202011238267 A CN 202011238267A CN 114464431 B CN114464431 B CN 114464431B
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- transmission line
- current transmission
- current
- side coil
- coil unit
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- 230000005540 biological transmission Effects 0.000 claims abstract description 161
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000009413 insulation Methods 0.000 description 12
- 238000010586 diagram Methods 0.000 description 4
- 238000004804 winding Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000005674 electromagnetic induction 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
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
- H01F27/28—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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transformers For Measuring Instruments (AREA)
Abstract
The invention discloses a transformer device for reducing magnetic field interference, which comprises an iron core, a first side coil unit, a second side coil unit, a first current transmission line, a second current transmission line and a third current transmission line, wherein the first side coil unit and the second side coil unit are wound on the iron core, the first side coil unit is connected to the first current transmission line and the second current transmission line, and the second current transmission line is connected to the third current transmission line. The first current transmission line comprises a first current conduction section and a first insulating layer, the first insulating layer covers the first current conduction section, the third current transmission line comprises a second current conduction section and a second insulating layer, the second insulating layer covers the second current conduction section, and the second insulating layer contacts the first insulating layer. The invention can reduce the magnetic field interference generated by the current of the current transmission line outside the coil of the transformer.
Description
Technical Field
The present invention relates to a transformer apparatus, and more particularly to a transformer apparatus for reducing magnetic field interference.
Background
Transformers are very common electronic circuits capable of raising or lowering voltage by applying faraday's law of electromagnetic induction, and generally comprise two or more sets of coils, and are important for raising or lowering the voltage of alternating current, changing impedance, and as a separate circuit.
Some electronic transformers are provided with a relatively high isolation between the primary and secondary sides, such as those used in some medical devices, where the length of the wire of the coil of the transformer often requires an elongated extension to achieve the relatively high isolation provided between the primary and secondary sides of the transformer.
However, the above-mentioned transformer provided with relatively high isolation between the primary side and the secondary side has a disadvantage in that the magnetic field generated by the current of the transformer is disturbed greatly, thus causing problems of more ripple noise, larger electromagnetic interference, and the like.
Disclosure of Invention
In order to solve the above problems, an object of the present invention is to provide a transformer apparatus for reducing magnetic field interference.
In order to achieve the above object, the transformer device for reducing magnetic field interference of the present invention comprises an iron core, a first side coil unit wound on the iron core, the first side coil unit comprising a first end point and a second end point, a second side coil unit wound on the iron core, a first current transmission line connected to the first end point, a second current transmission line connected to the second end point, and a third current transmission line connected to the second current transmission line, wherein the first current transmission line comprises a first current conduction section connected to the first end point, and a first insulating layer coating the first current conduction section, wherein the third current transmission line comprises a second current conduction section connected to the second current transmission line, and a second insulating layer coating the second insulating layer.
In one embodiment, the first side coil unit comprises a first coil wound around the core, the first coil comprising the first end and a third end, and a second coil wound around the core, the second coil comprising the second end and a fourth end.
In one embodiment, the transformer apparatus for reducing magnetic field interference further comprises a fourth current transmission line connected to the fourth terminal, a fifth current transmission line connected to the third terminal, and a sixth current transmission line connected to the fifth current transmission line.
In one embodiment, the fourth current transmission line comprises a third current conduction section connected to the fourth terminal, and a third insulating layer covering the third current conduction section.
In one embodiment, the sixth current transmission line comprises a fourth current conduction section connected to the fifth current transmission line and a fourth insulating layer covering the fourth current conduction section, the fourth insulating layer contacting the third insulating layer.
In one embodiment, the transformer apparatus for reducing magnetic field interference further comprises an insulating housing, wherein the core, the first side coil unit, the second current transmission line, the first coil, the second coil and the fifth current transmission line are disposed in the insulating housing.
In one embodiment, the transformer device for reducing magnetic field interference further includes a first electrical connection portion disposed on the insulating housing, and a second electrical connection portion disposed on the insulating housing, wherein the first current transmission line and the fourth current transmission line are disposed in the insulating housing and pass through the insulating housing to be connected to the first electrical connection portion, and the third current transmission line and the sixth current transmission line are disposed in the insulating housing and pass through the insulating housing to be connected to the second electrical connection portion.
In one embodiment, the transformer device for reducing magnetic field interference further includes a third electrical connection portion disposed on the insulating housing and electrically connected to the second side coil unit, and a fourth electrical connection portion disposed on the insulating housing and electrically connected to the second side coil unit.
In one embodiment, the first side coil unit is a transformer primary side coil set, and the second side coil unit is a transformer secondary side coil set.
In one embodiment, the second side coil unit is a transformer primary side coil set, and the first side coil unit is a transformer secondary side coil set.
The invention has the effect of reducing magnetic field interference generated by current of the current transmission line outside the coil of the transformer.
For a further understanding of the technology, means, and efficacy of the present invention, reference should be made to the following detailed description of the invention and to the accompanying drawings, which are included to provide a further understanding of the invention, and to the specific features and aspects of the invention, however, are given by way of illustration and not limitation.
Drawings
Fig. 1 is a schematic diagram of a first embodiment of a transformer apparatus for reducing magnetic field interference according to the present invention.
Fig. 2 is a cross-sectional view of a first current transmission line and a third current transmission line of the present invention in contact with each other.
Fig. 3 is a schematic diagram of a second embodiment of the transformer apparatus for reducing magnetic field interference according to the present invention.
Fig. 4 is a cross-sectional view of a fourth current transmission line and a sixth current transmission line of the present invention in contact with each other.
Symbol description in the drawings:
A transformer device for reducing magnetic field interference;
20, an iron core;
30 a first side coil unit;
a second side coil unit 40;
50, an insulating shell;
60, a first electrical connection part;
62 a second electrical connection;
64 a third electrical connection;
66, a fourth electrical connection;
302 a first endpoint;
304 a second endpoint;
306 a first current transmission line;
a second current transmission line 308;
A third current transmission line 310;
312 a first coil;
314 a third endpoint;
316 a second coil;
318, fourth endpoint;
320 a fourth current transmission line;
a fifth current transmission line 322;
324 a sixth current transmission line;
326, a first current;
328, a second current;
3062 a first current conducting section;
3064 a first insulating layer;
3102 a second current conducting section;
3104 a second insulating layer;
3202 a third current conducting segment;
3204 a third insulating layer;
3242 a fourth current conducting section;
3244 the fourth insulating layer.
Detailed Description
In the present disclosure, numerous specific details are provided to provide a thorough understanding of embodiments of the invention, however, one skilled in the art will recognize that the invention can be practiced without one or more of the specific details, and in other instances well-known details are not shown or described to avoid obscuring the main features of the invention. The technical content and detailed description of the present invention are as follows in conjunction with the drawings:
Please refer to fig. 1, which is a schematic diagram of a first embodiment of a transformer apparatus for reducing magnetic field interference according to the present invention, and refer to fig. 2, which is a cross-sectional view of a first current transmission line and a third current transmission line of the present invention in contact with each other. The transformer apparatus 10 for reducing magnetic field interference of the present invention comprises a core 20, a first side coil unit 30, a second side coil unit 40, an insulating housing 50, a first electrical connection portion 60, a second electrical connection portion 62, a third electrical connection portion 64, a fourth electrical connection portion 66, a first current transmission line 306, a second current transmission line 308, and a third current transmission line 310, wherein the first side coil unit 30 comprises a first end point 302 and a second end point 304, the first current transmission line 306 comprises a first current conduction section 3062 and a first insulating layer 3064, and the third current transmission line 310 comprises a second current conduction section 3102 and a second insulating layer 3104. Although fig. 1 shows a number of components, it should be understood that the present invention only requires the core 20, the first side coil unit 30, the second side coil unit 40, the first end point 302, the second end point 304, the first current transmission line 306, the second current transmission line 308, the third current transmission line 310, the first current conducting segment 3062, the first insulating layer 3064, the second current conducting segment 3102 and the second insulating layer 3104 to achieve the effects of the present invention.
The first side coil unit 30 and the second side coil unit 40 are wound around the iron core 20, the first current transmission line 306 is connected to the first end point 302, the second current transmission line 308 is connected to the second end point 304, the third current transmission line 310 is connected to the second current transmission line 308, the first current conduction section 3062 is connected to the first end point 302, the first insulation layer 3064 is wrapped around the first current conduction section 3062, the second current conduction section 3102 is connected to the second current transmission line 308, the second insulation layer 3104 is wrapped around the second current conduction section 3102, the second insulation layer 3104 is in contact with the first insulation layer 3064, the iron core 20, the first side coil unit 30, the second side coil unit 40 and the second current transmission line 308 are arranged in the insulation housing 50, the first electrical connection 60, the second electrical connection 62, the third electrical connection 64 and the fourth electrical connection 66 are arranged on the insulation housing 50, the first transmission line 306 is wrapped around the second current conduction section 3102, the second electrical connection 310 is arranged in the insulation housing 62 and the second electrical connection 64 is connected to the insulation housing 50, and the second electrical connection 66 passes through the third electrical connection portion and passes through the insulation housing 60 to the insulation housing 50.
The shape of the core 20 is not limited to fig. 1, the number of turns and winding direction of the first side coil unit 30 are not limited to fig. 1, and the number of turns and winding direction of the second side coil unit 40 are not limited to fig. 1. The first current transmission line 306, the first side coil unit 30, the second current transmission line 308 and the third current transmission line 310 may be, for example, but the invention is not limited to, the same current transmission line, which has a current conducting section and an insulating layer, and the insulating layer covers the current conducting section. For clarity of illustration of the third current transmission line 310 and the first current transmission line 306, the third current transmission line 310 of fig. 1 does not contact the first current transmission line 306, but the preferred embodiment of the present invention is that the third current transmission line 310 contacts the first current transmission line 306, i.e. the second insulating layer 3104 contacts the first insulating layer 3064, however, if the third current transmission line 310 does not contact the first current transmission line 306, the efficacy of the present invention can be achieved as long as the third current transmission line 310 is close to the first current transmission line 306. The second current transfer line 308 may be, for example, but is not limited to, not contacting the first current transfer line 306.
The second insulating layer 3104 contacts the first insulating layer 3064 such that a first current direction of a first current 326 of the third current transmission line 310 is opposite to a second current direction of a second current 328 of the first current transmission line 306, such that a first magnetic field generated by the first current 326 of the third current transmission line 310 attenuates or cancels a second magnetic field generated by the second current 328 of the first current transmission line 306. The second current 328 and the first current 326 have current paths of the first electrical connection 60, the first current transmission line 306, the first terminal 302, the first side coil unit 30, the second terminal 304, the second current transmission line 308, the third current transmission line 310 and the second electrical connection 62. The first and second electrical connection portions 60 and 62 are electrically connected to other electronic devices or circuits to receive power, and the third and fourth electrical connection portions 64 and 66 are also electrically connected to other electronic devices or circuits to transmit power. The current flowing through the first side coil unit 30 to generate a magnetic field to induce the second side coil unit 40 to generate a current is known in the art, and will not be described herein. The first side coil unit 30 of fig. 1 may be a transformer primary side coil set, and the second side coil unit 40 is a transformer secondary side coil set, but the invention is not limited thereto, and the second side coil unit 40 may also be a transformer primary side coil set, and the first side coil unit 30 is a transformer secondary side coil set.
Please refer to fig. 3, which is a schematic diagram of a second embodiment of the transformer apparatus for reducing magnetic field interference of the present invention, and refer to fig. 4, which is a cross-sectional view of a fourth current transmission line and a sixth current transmission line of the present invention in contact with each other, wherein the components shown in fig. 3 and 4 are the same as those shown in fig. 1 and 2, and therefore, the description thereof will not be repeated for brevity. The transformer apparatus 10 for reducing magnetic field interference further comprises a fourth current transmission line 320, a fifth current transmission line 322 and a sixth current transmission line 324, the first side coil unit 30 comprises a first coil 312 and a second coil 316, the first coil 312 comprises the first terminal 302 and a third terminal 314, the second coil 316 comprises the second terminal 304 and a fourth terminal 318, the fourth current transmission line 320 comprises a third current conduction section 3202 and a third insulation layer 3204, and the sixth current transmission line 324 comprises a fourth current conduction section 3242 and a fourth insulation layer 3244.
The first coil 312 and the second coil 316 are wound around the core 20, the fourth current transmission line 320 is connected to the fourth terminal 318, the fifth current transmission line 322 is connected to the third terminal 314, the sixth current transmission line 324 is connected to the fifth current transmission line 322, the third current transmission section 3202 is connected to the fourth terminal 318, the third insulating layer 3204 is wrapped around the third current transmission section 3202, the fourth current transmission section 3242 is connected to the fifth current transmission line 322, the fourth insulating layer 3244 is wrapped around the fourth current transmission section 3242, the fourth insulating layer 3244 is in contact with the third insulating layer 3204, the first coil 312, the second coil 316 and the fifth current transmission line 322 are disposed in the insulating housing 50 and pass through the insulating housing 50 to connect to the first electrical connection 60, the sixth current transmission line 320 is disposed in the insulating housing 50 and passes through the insulating housing 50 to connect to the second electrical connection 62.
The number of turns and winding direction of the first coil 312 are not limited to fig. 1, and the number of turns and winding direction of the second coil 316 are not limited to fig. 1. The first current transmission line 306, the first coil 312, the fifth current transmission line 322 and the sixth current transmission line 324 may be the same current transmission line, but the invention is not limited thereto, and the current transmission line has a current conducting section and an insulating layer, and the insulating layer covers the current conducting section. The fourth current transmission line 320, the second coil 316, the second current transmission line 308, and the third current transmission line 310 may be, for example, but the invention is not limited to, the same current transmission line, which has a current conducting section and an insulating layer, and the insulating layer covers the current conducting section. For clarity of illustration of the third current transmission line 310 and the first current transmission line 306, the third current transmission line 310 of fig. 3 does not contact the first current transmission line 306, but the preferred embodiment of the present invention is that the third current transmission line 310 contacts the first current transmission line 306, i.e. the second insulating layer 3104 contacts the first insulating layer 3064, however, if the third current transmission line 310 does not contact the first current transmission line 306, the efficacy of the present invention can be achieved as long as the third current transmission line 310 is close to the first current transmission line 306. For clarity of illustration of the sixth current transmission line 324 and the fourth current transmission line 320, the sixth current transmission line 324 of fig. 3 does not contact the fourth current transmission line 320, but the preferred embodiment of the present invention is that the sixth current transmission line 324 contacts the fourth current transmission line 320, i.e. the fourth insulating layer 3244 contacts the third insulating layer 3204, however, if the sixth current transmission line 324 does not contact the fourth current transmission line 320, the efficacy of the present invention is still achieved as long as the sixth current transmission line 324 is close to the fourth current transmission line 320. The second current transmission line 308 may not contact the first current transmission line 306, but the invention is not limited thereto, and the fifth current transmission line 322 may not contact the fourth current transmission line 320, but the invention is not limited thereto.
The fourth insulating layer 3244 contacts the third insulating layer 3204 such that the second current direction of the second current 328 of the sixth current transmission line 324 is opposite to the first current direction of the first current 326 of the fourth current transmission line 320, such that the second magnetic field generated by the second current 328 of the sixth current transmission line 324 attenuates or cancels the first magnetic field generated by the first current 326 of the fourth current transmission line 320. The second current 328 has a current path of the first electrical connection 60, the first current transmission line 306, the first end 302, the first coil 312, the third end 314, the fifth current transmission line 322, the sixth current transmission line 324, and the second electrical connection 62, and the first current 326 has a current path of the first electrical connection 60, the fourth current transmission line 320, the fourth end 318, the second coil 316, the second end 304, the second current transmission line 308, the third current transmission line 310, and the second electrical connection 62.
The invention has the effect of reducing magnetic field interference generated by current of the current transmission line outside the coil of the transformer.
However, the above description is only of the preferred embodiments of the present invention, and the scope of the invention is not limited thereto, i.e. the invention is not limited to the above-mentioned embodiments, but is intended to be protected by the following claims. The present invention is capable of other and further embodiments and its several details are capable of modification and variation in light of the present invention, as will be apparent to those skilled in the art, without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. A transformer apparatus for reducing magnetic field interference, comprising:
An iron core;
A first side coil unit wound around the core, the first side coil unit including a first end and a second end;
A second side coil unit, a first coil unit and a second coil unit, the second side coil unit is wound on the iron core;
a first current transmission line connected to the first terminal;
a second current transmission line connected to the second terminal, and
A third current transmission line connected to the second current transmission line,
Wherein the first current transmission line comprises:
a first current conducting section connected to the first end point, and
A first insulating layer covering the first current conducting section,
Wherein the third current transmission line comprises:
A second current conducting section connected to the second current transmission line, and
And the second insulating layer coats the second current conducting section, and the second insulating layer contacts the first insulating layer.
2. The transformer apparatus for reducing magnetic field interference of claim 1, wherein the first side coil unit comprises:
A first coil wound around the core and including a first end and a third end, and
And the second coil is wound on the iron core and comprises a second end point and a fourth end point.
3. The transformer apparatus for reducing magnetic field interference of claim 2, further comprising:
A fourth current transmission line connected to the fourth terminal;
a fifth current transmission line connected to the third terminal, and
And a sixth current transmission line connected to the fifth current transmission line.
4. The transformer apparatus for reducing magnetic field interference of claim 3, wherein the fourth current transmission line comprises:
A third current conducting section connected to the fourth terminal, and
And a third insulating layer covering the third current conducting section.
5. The transformer apparatus for reducing magnetic field interference of claim 4, wherein the sixth current transmission line comprises:
a fourth current conducting section connected to the fifth current transmission line, and
And a fourth insulating layer covering the fourth current conducting section, the fourth insulating layer contacting the third insulating layer.
6. The transformer apparatus for reducing magnetic field interference of claim 5, further comprising:
an insulating housing, a first insulating layer and a second insulating layer,
The iron core, the first side coil unit, the second current transmission line, the first coil, the second coil and the fifth current transmission line are arranged in the insulating shell.
7. The transformer apparatus for reducing magnetic field interference of claim 6, further comprising:
a first electrical connection part disposed on the insulating housing, and
A second electrical connection part arranged on the insulating shell,
The first current transmission line and the fourth current transmission line are arranged in the insulating shell and penetrate through the insulating shell to be connected to the first electric connection part; the third current transmission line and the sixth current transmission line are arranged in the insulating shell and penetrate through the insulating shell to be connected to the second electric connection part.
8. The transformer apparatus for reducing magnetic field interference of claim 7, further comprising:
a third electrical connection part disposed on the insulating housing and electrically connected to the second side coil unit, and
The fourth electric connection part is arranged on the insulating shell and is electrically connected to the second side coil unit.
9. The transformer apparatus for reducing magnetic field interference as set forth in claim 8, wherein the first side coil unit is a transformer primary side coil set and the second side coil unit is a transformer secondary side coil set.
10. The transformer apparatus for reducing magnetic field interference as set forth in claim 8, wherein the second side coil unit is a transformer primary side coil set, and the first side coil unit is a transformer secondary side coil set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011238267.6A CN114464431B (en) | 2020-11-09 | 2020-11-09 | Transformer device for reducing magnetic field interference |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011238267.6A CN114464431B (en) | 2020-11-09 | 2020-11-09 | Transformer device for reducing magnetic field interference |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114464431A CN114464431A (en) | 2022-05-10 |
| CN114464431B true CN114464431B (en) | 2025-02-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011238267.6A Active CN114464431B (en) | 2020-11-09 | 2020-11-09 | Transformer device for reducing magnetic field interference |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN213660188U (en) * | 2020-11-09 | 2021-07-09 | 博大科技股份有限公司 | Transformer device to reduce magnetic field disturbance |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102801302A (en) * | 2011-05-24 | 2012-11-28 | 浙江海洋学院 | Method for reducing noise by wrapping and shielding with inductance coil |
| AT512064B1 (en) * | 2011-10-31 | 2015-11-15 | Fronius Int Gmbh | HIGH-FLOW TRANSFORMER, TRANSFORMER ELEMENT, CONTACT PLATE AND SECONDARY WINDING, AND METHOD FOR PRODUCING SUCH A HIGH-SPEED TRANSFORMER |
| JP2016100441A (en) * | 2014-11-20 | 2016-05-30 | 株式会社ジェイテクト | Magnetization device and magnet manufacturing method |
| DE102017115822B9 (en) * | 2017-07-13 | 2021-04-08 | Power Mate Technology Co., Ltd. | Inconstruction and method of assembling same |
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- 2020-11-09 CN CN202011238267.6A patent/CN114464431B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN213660188U (en) * | 2020-11-09 | 2021-07-09 | 博大科技股份有限公司 | Transformer device to reduce magnetic field disturbance |
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| CN114464431A (en) | 2022-05-10 |
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