CN117095922A - transformer - Google Patents
transformer Download PDFInfo
- Publication number
- CN117095922A CN117095922A CN202311034952.0A CN202311034952A CN117095922A CN 117095922 A CN117095922 A CN 117095922A CN 202311034952 A CN202311034952 A CN 202311034952A CN 117095922 A CN117095922 A CN 117095922A
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- wire
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- flange
- transformer
- winding
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- 238000004804 winding Methods 0.000 claims abstract description 73
- 238000002955 isolation Methods 0.000 claims description 25
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 8
- 230000001629 suppression Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910000859 α-Fe Inorganic materials 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
- H01F17/04—Fixed inductances of the signal type with magnetic core
-
- 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
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
- H01F27/341—Preventing or reducing no-load losses or reactive currents
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
The application discloses a transformer, which comprises a magnetic core module, a first wire, a second wire, a third wire and a fourth wire, wherein the magnetic core module is provided with a first flange, a second flange, a third flange, a first winding part and a second winding part; the first part of the first wire and the first part of the second wire are wound on the first winding part at the same time, and the second part of the first wire and the second part of the second wire are wound on the second winding part at the same time; the first wire and the second wire form a first coil layer; the third wire and the fourth wire form a second coil layer, and the first coil layer is located between the second coil layer and the first winding part. The transformer can realize the function of the transformer and the function of the common mode filter, integrate the transformer and the common mode filter together, reduce the production cost and save the space of a circuit board.
Description
Technical Field
The application relates to the technical field of electrical elements, in particular to a transformer.
Background
Common mode filters typically employ ferrite cores, double wire parallel winding. The low differential mode noise signal suppression interference source is difficult to deform in the high-speed signal, and the noise suppression countermeasure is good, and the high common mode noise suppression and the low differential mode noise signal suppression are performed. The transformer is a device for changing ac voltage by utilizing the principle of electromagnetic induction, and is often used for voltage rise and fall, impedance matching, safety isolation and the like.
In the related art, the common mode filter and the transformer are usually used as separate devices, and when the common mode filter and the transformer are two independent components, the production cost is high, and the two magnetic cores are separated and occupy more space of the circuit board.
Disclosure of Invention
The present application aims to solve at least one of the technical problems existing in the prior art. Therefore, the application provides the transformer, which can integrate the transformer and the common mode filter, reduce the production cost and save the space of a circuit board.
According to an embodiment of the present application, a transformer includes:
the magnetic core module is provided with a first flange, a second flange, a third flange, a first winding part and a second winding part, wherein the first flange is connected with the second flange through the first winding part, and the second flange is connected with the third flange through the second winding part;
a first wire;
the first part of the first wire and the first part of the second wire are wound on the first winding part at the same time, and the second part of the first wire and the second part of the second wire are wound on the second winding part at the same time; the first end of the first wire is connected to the first flange, the first part and the second part of the first wire are connected to the second flange, the first part and the second part of the second wire are connected to the second flange, the tail end of the first wire is connected to the third flange, the tail end of the second wire is connected to the third flange, and the first wire and the second wire form a first coil layer;
a third wire;
the third wire and the fourth wire are wound on the first winding part at the same time, the head end of the third wire is connected with the first flange, the head end of the fourth wire is connected with the first flange, the tail end of the third wire is connected with the second flange, the head end of the fourth wire is connected with the second flange, the third wire and the fourth wire form a second coil layer, and the first coil layer is positioned between the second coil layer and the first winding part.
The transformer provided by the embodiment of the application has at least the following beneficial effects: the transformer comprises a magnetic core module, a first wire, a second wire, a third wire and a fourth wire, wherein the magnetic core module is provided with a first flange, a second flange, a third flange, a first winding part and a second winding part, the first flange is connected with the second flange through the first winding part, and the second flange is connected with the third flange through the second winding part; the first part of the first wire and the first part of the second wire are wound on the first winding part at the same time, and the second part of the first wire and the second part of the second wire are wound on the second winding part at the same time; the first end of the first wire is connected to the first flange, the first part and the second part of the first wire are connected to the second flange, the first part and the second part of the second wire are connected to the second flange, the tail end of the first wire is connected to the third flange, the tail end of the second wire is connected to the third flange, and the first wire and the second wire form a first coil layer; the third wire and the fourth wire are wound on the first winding part at the same time, the head end of the third wire is connected with the first flange, the head end of the fourth wire is connected with the first flange, the tail end of the third wire is connected with the second flange, the head end of the fourth wire is connected with the second flange, the third wire and the fourth wire form a second coil layer, and the first coil layer is positioned between the second coil layer and the first winding part. In the transformer provided by the embodiment of the application, the transformer is formed between the first flange and the second flange, and the common-mode filter is formed between the second flange and the third flange.
According to some embodiments of the application, a first bonding pad and a third bonding pad are respectively arranged at two ends of the first flange, a second bonding pad is further arranged on the first flange, the second bonding pad is located between the first bonding pad and the third bonding pad, the head end of the first wire and the head end of the second wire are welded to the first bonding pad, the head end of the third wire is welded to the second bonding pad, and the head end of the fourth wire is welded to the third bonding pad.
According to some embodiments of the application, a fourth bonding pad and a sixth bonding pad are respectively disposed at two ends of the second flange, a fifth bonding pad is further disposed between the fourth bonding pad and the fifth bonding pad, a first portion and a second portion of the first wire are welded to the fifth bonding pad, a first portion and a second portion of the second wire are welded to the fourth bonding pad, and an end of the third wire and an end of the fourth wire are welded to the sixth bonding pad.
According to some embodiments of the application, a seventh bonding pad and an eighth bonding pad are respectively disposed at two ends of the third flange, the end of the first wire is welded to the seventh bonding pad, and the end of the second wire is welded to the eighth bonding pad.
According to some embodiments of the application, a distance between the first pad and the second pad is greater than a distance between the second pad and the third pad; the distance between the fourth pad and the fifth pad is smaller than the distance between the fifth pad and the sixth pad.
According to some embodiments of the application, a first isolation groove is arranged between the first bonding pad and the second bonding pad, and a second isolation groove is arranged between the second bonding pad and the third bonding pad.
According to some embodiments of the application, a third isolation groove is arranged between the fourth bonding pad and the fifth bonding pad, and a fourth isolation groove is arranged between the fifth bonding pad and the sixth bonding pad.
According to some embodiments of the application, the winding direction of the first wire and the winding direction of the second wire are both a first direction, the winding direction of the third wire and the winding direction of the fourth wire are both a second direction, and the first direction is opposite to the second direction.
According to some embodiments of the application, the first direction is a clockwise direction and the second direction is a counterclockwise direction.
According to some embodiments of the application, the first direction is a counterclockwise direction and the second direction is a clockwise direction.
Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application.
Drawings
The application is further described with reference to the accompanying drawings and examples, in which:
fig. 1 is a schematic structural diagram of a transformer according to an embodiment of the present application;
fig. 2 is a schematic diagram illustrating the winding of a first wire and a second wire according to an embodiment of the application;
fig. 3 is a schematic diagram illustrating the winding of a third wire and a fourth wire according to an embodiment of the present application;
fig. 4 is an equivalent circuit schematic diagram of a transformer according to an embodiment of the application.
Reference numerals:
a first flange 110; a first pad 111; a second pad 112; a third pad 113; a first isolation groove 114; a second isolation groove 115;
a second flange 120; a fourth pad 121; a fifth pad 122; a sixth pad 123; a third isolation groove 124; a fourth isolation groove 125;
a third flange 130; a seventh pad 131; an eighth pad 132;
a first wire 200; a second wire 300; a third wire 400; and a fourth wire 500.
Detailed Description
Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the application.
In the description of the present application, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present application and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present application.
In the description of the present application, the meaning of a number is one or more, the meaning of a number is two or more, and greater than, less than, exceeding, etc. are understood to exclude the present number, and the meaning of a number is understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present application, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present application can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.
In the description of the present application, the descriptions of the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Referring to fig. 1 to 4, an embodiment of the present application provides a transformer including:
the magnetic core module is provided with a first flange 110, a second flange 120, a third flange 130, a first winding part and a second winding part, wherein the first flange 110 is connected with the second flange 120 through the first winding part, and the second flange 120 is connected with the third flange 130 through the second winding part;
a first wire 200;
the second wire 300, the first part of the first wire 200 and the first part of the second wire 300 are wound around the first winding part at the same time, and the second part of the first wire 200 and the second part of the second wire 300 are wound around the second winding part at the same time; the head end of the first wire 200 is connected to the first flange 110, the first portion and the second portion of the first wire 200 are connected to the second flange 120, the first portion and the second portion of the second wire 300 are connected to the second flange 120, the tail end of the first wire 200 is connected to the third flange 130, the tail end of the second wire 300 is connected to the third flange 130, and the first wire 200 and the second wire 300 form a first coil layer;
a third wire 400;
the fourth wire 500, the third wire 400 and the fourth wire 500 are wound around the first winding portion at the same time, the head end of the third wire 400 is connected to the first flange 110, the head end of the fourth wire 500 is connected to the first flange 110, the tail end of the third wire 400 is connected to the second flange 120, the head end of the fourth wire 500 is connected to the second flange 120, the third wire 400 and the fourth wire 500 form a second coil layer, and the first coil layer is located between the second coil layer and the first winding portion.
Fig. 1 is a schematic diagram of a transformer according to an embodiment of the application, and fig. 2 is a schematic diagram of windings of a first conductive wire 200 and a second conductive wire 300 according to an embodiment of the application; fig. 3 is a schematic diagram illustrating the winding of the third conductive wire 400 and the fourth conductive wire 500 according to an embodiment of the application; fig. 4 is an equivalent circuit schematic diagram of a transformer according to an embodiment of the application. The transformer provided by the embodiment of the application has at least the following beneficial effects: the transformer of the embodiment of the application comprises a magnetic core module, a first wire 200, a second wire 300, a third wire 400 and a fourth wire 500, wherein the magnetic core module is provided with a first flange 110, a second flange 120, a third flange 130, a first winding part and a second winding part, the first flange 110 is connected with the second flange 120 through the first winding part, and the second flange 120 is connected with the third flange 130 through the second winding part; the first portion of the first wire 200 and the first portion of the second wire 300 are wound around the first winding portion at the same time, and the second portion of the first wire 200 and the second portion of the second wire 300 are wound around the second winding portion at the same time; the head end of the first wire 200 is connected to the first flange 110, the first portion and the second portion of the first wire 200 are connected to the second flange 120, the first portion and the second portion of the second wire 300 are connected to the second flange 120, the tail end of the first wire 200 is connected to the third flange 130, the tail end of the second wire 300 is connected to the third flange 130, and the first wire 200 and the second wire 300 form a first coil layer; the third wire 400 and the fourth wire 500 are wound around the first winding portion at the same time, the head end of the third wire 400 is connected to the first flange 110, the head end of the fourth wire 500 is connected to the first flange 110, the tail end of the third wire 400 is connected to the second flange 120, the head end of the fourth wire 500 is connected to the second flange 120, the third wire 400 and the fourth wire 500 form a second coil layer, and the first coil layer is located between the second coil layer and the first winding portion. In the transformer of the embodiment of the application, the transformer is formed between the first flange 110 and the second flange 120, and the common-mode filter is formed between the second flange 120 and the third flange 130.
It should be noted that the first conductive wire 200 and the second conductive wire 300 are wound in a double-wire parallel manner, so that the difference in length between the first conductive wire 200 and the second conductive wire 300 is small, transmission of differential mode signals is facilitated, and loss can be reduced.
In the production of the transformer according to the embodiment of the present application, since the first coil layer is located between the second coil layer and the first winding portion, the first portion of the first wire 200 and the first portion of the second wire 300 are wound around the first winding portion at the same time, and then the second portion of the first wire 200 and the second portion of the second wire 300 are wound around the second winding portion at the same time, and after the winding of the first wire 200 and the second wire 300 is completed, the third wire 400 and the fourth wire 500 are wound around the first winding portion at the same time.
It should be noted that, the winding direction of the first wire 200 and the winding direction of the second wire 300 are both the first direction, the winding direction of the third wire 400 and the winding direction of the fourth wire 500 are both the second direction, and the first direction is opposite to the second direction. Referring to fig. 2 and 3, the first direction is counterclockwise and the second direction is clockwise. That is, the winding direction of the first and second wires 200 and 300 is counterclockwise, and the winding direction of the third and fourth wires 400 and 500 is clockwise.
It should be noted that, in other embodiments, the first direction is a clockwise direction, and the second direction is a counterclockwise direction.
It can be understood that the two ends of the first flange 110 are respectively provided with a first bonding pad 111 and a third bonding pad 113, the first flange 110 is further provided with a second bonding pad 112, the second bonding pad 112 is located between the first bonding pad 111 and the third bonding pad 113, the head end of the first wire 200 and the head end of the second wire 300 are both welded to the first bonding pad 111, the head end of the third wire 400 is welded to the second bonding pad 112, and the head end of the fourth wire 500 is welded to the third bonding pad 113.
It can be understood that the second flange 120 is provided with a fourth pad 121 and a sixth pad 123 at two ends, the second flange 120 is further provided with a fifth pad 122, the fifth pad 122 is located between the fourth pad 121 and the fifth pad 122, the first portion and the second portion of the first wire 200 are welded to the fifth pad 122, the first portion and the second portion of the second wire 300 are welded to the fourth pad 121, and the end of the third wire 400 and the end of the fourth wire 500 are welded to the sixth pad 123.
Specifically, in one embodiment, the first conductive line 200 includes a first portion, a second portion, and an intermediate portion between the first portion and the second portion, the first portion of the first conductive line 200 is wound around the first winding portion, the second portion of the first conductive line 200 is wound around the second winding portion, and the intermediate portion of the first conductive line 200 is soldered to the fifth pad 122. The second wire 300 includes a first portion, a second portion, and an intermediate portion between the first portion and the second portion, the first portion of the second wire 300 is wound around the first winding portion, the second portion of the second wire 300 is wound around the second winding portion, and the intermediate portion of the second wire 300 is soldered to the fourth pad 121.
It will be appreciated that the seventh and eighth pads 131 and 132 are provided at both ends of the third flange 130, respectively, the end of the first wire 200 is soldered to the seventh pad 131, and the end of the second wire 300 is soldered to the eighth pad 132.
It should be noted that, referring to fig. 4, in the embodiment of the present application, each pad is taken as one electrode terminal in fig. 4, the first pad 111 to the sixth pad 123 between the first flange 110 and the second flange 120 form a transformer, and the number of turns of the coils of the third pad 113 to the second pad 112 are equal to the number of turns of the coils of the fifth pad 122 to the fourth pad 121, that is, the turns ratio of the primary coil to the secondary coil of the formed transformer is 1:1. In fig. 4, a common mode filter is formed between the seventh pad 131 and the second pad 112.
It is understood that the distance between the first pad 111 and the second pad 112 is greater than the distance between the second pad 112 and the third pad 113; the distance between the fourth pad 121 and the fifth pad 122 is smaller than the distance between the fifth pad 122 and the sixth pad 123. Since the head ends of the first and second wires 200 and 300 are both welded to the first and second pads 111 and 112, the head end of the third wire 400 is welded to the third pad 113, the head end of the fourth wire 500 is welded to the fifth pad 122 between the first and second portions of the first wire 200, the fourth pad 121 between the first and second portions of the second wire 300, and the sixth pad 123 between the end of the third wire 400 and the end of the fourth wire 500, the distance between the first and second pads 111 and 112 is greater than the distance between the second and third pads 112 and 113, and the distance between the fourth and fifth pads 121 and 122 is less than the distance between the fifth and sixth pads 122 and 123, thereby enabling better insulation between the first and second turn layers.
It is understood that a first isolation groove 114 is provided between the first pad 111 and the second pad 112, and a second isolation groove 115 is provided between the second pad 112 and the third pad 113. The first pad 111 is separated from the second pad 112 by a first isolation groove 114 to insulate between the first pad 111 and the second pad 112. The second pad 112 is spaced apart from the third pad 113 by a second isolation groove 115 to insulate between the second pad 112 and the third pad 113.
It is understood that the third isolation groove 124 is disposed between the fourth pad 121 and the fifth pad 122, and the fourth isolation groove 125 is disposed between the fifth pad 122 and the sixth pad 123. The fourth pad 121 is separated from the fifth pad 122 by a third isolation groove 124 to insulate between the fourth pad 121 and the fifth pad 122. The fifth pad 122 is spaced apart from the sixth pad 123 by a fourth isolation groove 125 to insulate between the fifth pad 122 and the sixth pad 123.
The first isolation groove 114, the second isolation groove 115, the third isolation groove 124, and the fourth isolation groove 125 are square in shape.
The embodiments of the present application have been described in detail with reference to the accompanying drawings, but the present application is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present application. Furthermore, embodiments of the application and features of the embodiments may be combined with each other without conflict.
Claims (10)
1. A transformer, comprising:
the magnetic core module is provided with a first flange, a second flange, a third flange, a first winding part and a second winding part, wherein the first flange is connected with the second flange through the first winding part, and the second flange is connected with the third flange through the second winding part;
a first wire;
the first part of the first wire and the first part of the second wire are wound on the first winding part at the same time, and the second part of the first wire and the second part of the second wire are wound on the second winding part at the same time; the first end of the first wire is connected to the first flange, the first part and the second part of the first wire are connected to the second flange, the first part and the second part of the second wire are connected to the second flange, the tail end of the first wire is connected to the third flange, the tail end of the second wire is connected to the third flange, and the first wire and the second wire form a first coil layer;
a third wire;
the third wire and the fourth wire are wound on the first winding part at the same time, the head end of the third wire is connected with the first flange, the head end of the fourth wire is connected with the first flange, the tail end of the third wire is connected with the second flange, the head end of the fourth wire is connected with the second flange, the third wire and the fourth wire form a second coil layer, and the first coil layer is positioned between the second coil layer and the first winding part.
2. The transformer of claim 1, wherein a first bonding pad and a third bonding pad are respectively disposed at two ends of the first flange, the first flange is further provided with a second bonding pad, the second bonding pad is located between the first bonding pad and the third bonding pad, the first end of the first wire and the first end of the second wire are both welded to the first bonding pad, the first end of the third wire is welded to the second bonding pad, and the first end of the fourth wire is welded to the third bonding pad.
3. The transformer of claim 2, wherein a fourth bonding pad and a sixth bonding pad are respectively disposed at two ends of the second flange, the second flange is further provided with a fifth bonding pad, the fifth bonding pad is located between the fourth bonding pad and the fifth bonding pad, the first portion and the second portion of the first wire are welded to the fifth bonding pad, the first portion and the second portion of the second wire are welded to the fourth bonding pad, and the tail end of the third wire and the tail end of the fourth wire are welded to the sixth bonding pad.
4. The transformer of claim 1, wherein a seventh pad and an eighth pad are respectively disposed at both ends of the third flange, the end of the first wire is soldered to the seventh pad, and the end of the second wire is soldered to the eighth pad.
5. The transformer of claim 3, wherein a distance between the first pad and the second pad is greater than a distance between the second pad and the third pad; the distance between the fourth pad and the fifth pad is smaller than the distance between the fifth pad and the sixth pad.
6. A transformer according to claim 3, wherein a first isolation groove is provided between the first pad and the second pad, and a second isolation groove is provided between the second pad and the third pad.
7. The transformer of claim 6, wherein a third isolation trench is provided between the fourth pad and the fifth pad, and a fourth isolation trench is provided between the fifth pad and the sixth pad.
8. The transformer of claim 1, wherein the winding direction of the first wire and the winding direction of the second wire are both a first direction, the winding direction of the third wire and the winding direction of the fourth wire are both a second direction, and the first direction is opposite to the second direction.
9. The transformer of claim 8, wherein the first direction is a clockwise direction and the second direction is a counterclockwise direction.
10. The transformer of claim 8, wherein the first direction is a counter-clockwise direction and the second direction is a clockwise direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311034952.0A CN117095922A (en) | 2023-08-16 | 2023-08-16 | transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311034952.0A CN117095922A (en) | 2023-08-16 | 2023-08-16 | transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117095922A true CN117095922A (en) | 2023-11-21 |
Family
ID=88782228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311034952.0A Pending CN117095922A (en) | 2023-08-16 | 2023-08-16 | transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117095922A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105390241A (en) * | 2014-09-02 | 2016-03-09 | 乾坤科技股份有限公司 | Composite magnetic component |
| CN110164659A (en) * | 2019-07-02 | 2019-08-23 | 鸿磬电子（东莞）有限公司 | A kind of SMD magnetic core original part structure that performance is stable |
| CN210156230U (en) * | 2019-08-16 | 2020-03-17 | 庆邦电子元器件(泗洪)有限公司 | Transformer and common mode filter integrated element |
-
2023
- 2023-08-16 CN CN202311034952.0A patent/CN117095922A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105390241A (en) * | 2014-09-02 | 2016-03-09 | 乾坤科技股份有限公司 | Composite magnetic component |
| CN110164659A (en) * | 2019-07-02 | 2019-08-23 | 鸿磬电子（东莞）有限公司 | A kind of SMD magnetic core original part structure that performance is stable |
| CN210156230U (en) * | 2019-08-16 | 2020-03-17 | 庆邦电子元器件(泗洪)有限公司 | Transformer and common mode filter integrated element |
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