CN216119859U - Network inductor - Google Patents
Network inductor Download PDFInfo
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- CN216119859U CN216119859U CN202122264190.6U CN202122264190U CN216119859U CN 216119859 U CN216119859 U CN 216119859U CN 202122264190 U CN202122264190 U CN 202122264190U CN 216119859 U CN216119859 U CN 216119859U
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Abstract
The application discloses a network inductor relates to the technical field of electronic elements. A network inductor, comprising: a magnetic core; the first winding group is wound on the magnetic core to form a common mode inductor; the common mode inductor is provided with four connecting ends; and the second winding group is wound on the magnetic core to form the autotransformer, and one end of the first winding group is hinged with one end of the second winding group. The network inductor can connect and combine the autotransformer and the common-mode inductor, reduces parts and occupied space of electronic devices, and effectively improves circuit integration.
Description
Technical Field
The application relates to the technical field of electronic elements, in particular to a network inductor.
Background
In the related art, an inductor is an element that can convert electric energy into magnetic energy and store the magnetic energy, and is a device manufactured according to the electromagnetic induction principle, and any device that can generate self-inductance and mutual inductance can be called an inductor. The inductor has wide application, and is often used as a choke, a transformer, an alternating current coupling, a load and the like in a circuit; when the inductor and the capacitor are matched, the inductor and the capacitor can be used for tuning, filtering, frequency selection, frequency division and the like. In the existing network communication circuit, a network interface and a network transformer form a network port filter circuit, in order to suppress common mode noise and filter electromagnetic interference, the network port filter circuit is additionally provided with a common mode inductor, and the common mode inductor and the network transformer occupy a certain position on the circuit, which is not beneficial to further integration of the circuit.
SUMMERY OF THE UTILITY MODEL
The present application is directed to solving at least one of the problems in the prior art. Therefore, the network inductor can connect and combine the autotransformer and the common-mode inductor, reduces parts and occupied space of electronic devices, and effectively improves circuit integration.
A network inductor according to an embodiment of the application comprises:
a magnetic core;
the first winding group is wound on the magnetic core to form a common mode inductor; the common mode inductor is provided with four connecting ends;
and the second winding group is wound on the magnetic core to form an autotransformer, and one end of the first winding group is hinged with one end of the second winding group.
The network inductor according to the embodiment of the application has at least the following beneficial effects: the first winding group and the second winding group are arranged, the first winding group surrounds the magnetic core to form the common-mode inductor, the second winding group surrounds the magnetic core to form the auto-transformer, and the first winding group and the second winding group are connected together to combine the auto-transformer and the common-mode inductor into the network inductor, so that the purpose of simplifying a circuit is achieved. Therefore, the network inductor can simplify the circuit, reduce the parts and the occupied space of electronic devices and improve the circuit integration level by sharing the common-mode inductor and the autotransformer with the same magnetic core.
According to some embodiments of the present application, the first winding group includes a first enameled wire and a second enameled wire, and the first enameled wire and the second enameled wire both form a common mode inductor around the magnetic core; the four connecting ends respectively correspond to two ends of the first enameled wire and the second enameled wire.
According to some embodiments of the present application, the second winding group includes a third enameled wire and a fourth enameled wire, and a tail end of the third enameled wire and a head end of the fourth enameled wire are spliced to form a center tap of the autotransformer; the autotransformer is provided with three wiring ends, and the center tap, the head end of the third enameled wire and the tail end of the fourth enameled wire are three wiring ends.
According to some embodiments of the present application, a head end of the third enameled wire and a tail end of the first enameled wire are twisted with each other to form a first twisted end, and a tail end of the fourth enameled wire and a tail end of the second enameled wire are twisted with each other to form a second twisted end.
According to some embodiments of the present application, the network inductor further comprises a housing, the housing having a plurality of pins disposed thereon; the center tap, the head end of the first enameled wire, the head end of the second enameled wire, the first twisted wire end and the second twisted wire end are connected with the plurality of pins in a one-to-one correspondence mode.
According to some embodiments of the present application, the first enameled wire, the second enameled wire, the third enameled wire, and the fourth enameled wire are wound around the magnetic core for 3 to 60 turns.
According to some embodiments of the present application, the first enameled wire, the second enameled wire, the third enameled wire, and the fourth enameled wire are four enameled wires with different colors.
According to some embodiments of the application, the magnetic core is a ferrite core or an amorphous nanocrystalline core.
According to some embodiments of the application, the magnetic core is a toroidal core, a square core, or an i-shaped core.
According to some embodiments of the application, the inductance value of the autotransformer is 30 to 450 microhenries and the impedance of the common mode inductor is 25 to 1000 ohms.
Additional aspects and advantages of the present 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 present application.
Drawings
The present application is further described with reference to the following figures and examples, in which:
fig. 1 is a schematic diagram of a winding structure of a network inductor according to an embodiment of the present application;
fig. 2 is a schematic diagram of a twisted wire structure of a network inductor according to an embodiment of the present application;
fig. 3 is a schematic diagram of a twisted wire structure of a network inductor according to another embodiment of the present application;
fig. 4 is a schematic diagram of a twisted wire structure of a network inductor according to another embodiment of the present application;
fig. 5 is a schematic diagram of a twisted wire structure of a network inductor according to another embodiment of the present application;
FIG. 6 is a schematic circuit diagram of a network inductor according to an embodiment of the present application;
fig. 7 is a schematic diagram of a finished structure of a network inductor according to an embodiment of the present application;
fig. 8 is a schematic diagram of a finished network inductor structure according to another embodiment of the present disclosure;
fig. 9 is a schematic diagram of a finished structure of a network inductor according to another embodiment of the present application;
fig. 10 is a schematic diagram of a finished network inductor structure according to another embodiment of the present application;
fig. 11 is a schematic diagram of an application circuit of a network inductor according to an embodiment of the present application.
Reference numerals:
the transformer comprises a magnetic core 100, a first winding group 200, a first enameled wire 210, a second enameled wire 220, a second winding group 300, a third enameled wire 310, a fourth enameled wire 320, a common mode inductor 400, an autotransformer 500, a shell 600, a pin 610, a chip 700 and a network interface 800.
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.
In the description of the present application, it is to be understood that the positional descriptions, such as the directions of up, down, front, rear, left, right, etc., referred to herein are based on the directions or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the referred device or element must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present application.
In the description of the present application, the meaning of a plurality is one or more, the meaning of a plurality is two or more, and the above, below, exceeding, etc. are understood as excluding the present number, and the above, below, within, etc. are understood as including the present number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood 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 otherwise expressly limited, terms such as set, mounted, connected and the like should be construed broadly, and those skilled in the art can reasonably determine the specific meaning of the terms in the present application by combining the detailed contents of the technical solutions.
In the description of the present application, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples," etc., means 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, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
A network inductance according to an embodiment of the present application is described below with reference to fig. 1-3.
It can be understood that, as shown in fig. 1, the network inductor according to the embodiment of the present application includes:
a magnetic core 100;
the first winding group 200, the first winding group 200 is wound on the magnetic core 100 to form a common mode inductor 400; the common mode inductor 400 is provided with four connection terminals;
and a second winding group 300, wherein the second winding group 300 is wound around the magnetic core 100 to form an autotransformer 500, and one end of the first winding group 200 is hinged to one end of the second winding group 300.
The first winding group 200 and the second winding group 300 are arranged, the first winding group 200 surrounds the magnetic core 100 to form the common mode inductor 400, the second winding group 300 surrounds the magnetic core 100 to form the autotransformer 500, and the first winding group 200 and the second winding group 300 are connected together, so that the autotransformer and the common mode inductor 400 can be combined into a network inductor, and the purpose of simplifying a circuit is achieved. Therefore, the network inductor of the present application can simplify the circuit, reduce the parts and the occupied space of the electronic device, and improve the circuit integration level by sharing the common mode inductor 400 and the autotransformer 500 with the same magnetic core 100.
It should be noted that two terminals are respectively disposed at two ends of the first winding group 200.
It can be understood that, as shown in fig. 1, the first winding group 200 includes a first enameled wire 210 and a second enameled wire 220, and both the first enameled wire 210 and the second enameled wire 220 surround the magnetic core 100 to form a common mode inductor 400; the four connection ends respectively correspond to two ends of the first enameled wire 210 and the second enameled wire 220.
It can be understood that, as shown in fig. 1, the second winding group 300 includes a third enameled wire 310 and a fourth enameled wire 320, and a tail end of the third enameled wire 310 and a head end of the fourth enameled wire 320 are hinged to form a center tap of the autotransformer 500; the autotransformer 500 is provided with three terminals, a center tap, a head end of the third enameled wire 310, and a tail end of the fourth enameled wire 320.
It is understood that, as shown in fig. 1 and 2, the head end of the third enamel wire 310 and the tail end of the first enamel wire 210 are twisted with each other to form a first twisted end, and the tail end of the fourth enamel wire 320 and the tail end of the second enamel wire 220 are twisted with each other to form a second twisted end.
It can be understood that, as shown in fig. 2 and 6, the head and tail ends of the first enameled wire 210 are respectively an N end and an N end, the head and tail ends of the second enameled wire 220 are respectively a B end and a B end, the head and tail ends of the third enameled wire 310 are respectively an R end and an R end, and the head and tail ends of the fourth enameled wire 320 are respectively a G end and a G end; the R terminal and the G terminal are twisted with each other to form a center tap of the autotransformer 500, the N terminal and the R terminal are twisted with each other to form a first twisted terminal, the G terminal and the B terminal are twisted with each other to form a second twisted terminal, the N terminal and the B terminal form one terminal of the common mode inductor 400, and one terminal of the common mode inductor 400 is two terminals.
It should be noted that the first enameled wire 210, the second enameled wire 220, the third enameled wire 310 and the fourth enameled wire 320 may be arbitrarily interchanged, as shown in fig. 3, the head and tail ends of the first enameled wire 210 are respectively an R end and an R end, the head and tail ends of the second enameled wire 220 are respectively a G end and a G end, the head and tail ends of the third enameled wire 310 are respectively an N end and an N end, and the head and tail ends of the fourth enameled wire 320 are respectively a B end and a B end; the N terminal and the B terminal are twisted with each other to form a center tap of the autotransformer 500, the N terminal and the R terminal are twisted with each other to form a third twisted terminal, the G terminal and the B terminal are twisted with each other to form a fourth twisted terminal, and the R terminal and the G terminal form one terminal of the common mode inductor 400.
It should be noted that, as shown in fig. 4, the head and tail ends of the first enameled wire 210 are respectively a G end and a G end, the head and tail ends of the second enameled wire 220 are respectively a B end and a B end, the head and tail ends of the third enameled wire 310 are respectively an R end and an R end, and the head and tail ends of the fourth enameled wire 320 are respectively an N end and an N end; the N terminal and the R terminal are twisted with each other to form a center tap, the R terminal and the G terminal are twisted with each other to form a fifth twisted terminal, the B terminal and the N terminal are twisted with each other to form a sixth twisted terminal, and the G terminal and the B terminal form one terminal of the common mode inductor 400.
It should be noted that, as shown in fig. 5, the head and tail ends of the first enameled wire 210 are respectively an N end and an N end, the head and tail ends of the second enameled wire 220 are respectively an R end and an R end, the head and tail ends of the third enameled wire 310 are respectively a G end and a G end, and the head and tail ends of the fourth enameled wire 320 are respectively a B end and a B end; the first enameled wire 210 and the third enameled wire 310 are used for forming a common mode inductor 400, and the fourth enameled wire 320 and the second enameled wire 220 are used for forming an autotransformer 500; the G terminal and the B terminal are twisted with each other to form a center tap, the G terminal and the N terminal are twisted with each other to form a seventh twisted terminal, the B terminal and the R terminal are twisted with each other to form an eighth twisted terminal, and the N terminal and the R terminal form one terminal of the common mode inductor 400.
It can be understood that, as shown in fig. 7 to 10, the network inductor further includes a housing 600, and a plurality of pins 610 are disposed on the housing 600; the center tap, the head end of the first enameled wire 210, the head end of the second enameled wire 220, the first twisted wire end and the second twisted wire end are connected with the plurality of pins 610 in a one-to-one correspondence manner.
It should be noted that the network inductor of the present application may be designed into the form shown in fig. 4, fig. 5, fig. 6, and fig. 7 according to the actual circuit requirements.
It can be understood that, as shown in fig. 2, the first enamel wire 210, the second enamel wire 220, the third enamel wire 310, and the fourth enamel wire 320 are wound around the magnetic core 100 for 3 to 60 turns.
It can be understood that the first enameled wire 210, the second enameled wire 220, the third enameled wire 310 and the fourth enameled wire 320 are enameled wires with four different colors. Through the differentiation of colour, can reduce the error rate of wire winding, improve production efficiency.
It is understood that the core 100 is a ferrite core 100 or an amorphous nanocrystalline core 100.
It is understood that the magnetic core 100 is a toroidal core, a square core, or an i-shaped core.
It should be noted that the common mode inductor 400 and the autotransformer 500 are integrated by magnetic cores having the same shape, and the common magnetic core can be realized by adjusting the number of turns and the material of the magnetic core to achieve respective effects.
It will be appreciated that the inductance of autotransformer 500 is 30 to 450 microhenries and the impedance of common mode inductor 400 is 25 to 1000 ohms.
It is understood that, as shown in fig. 11, for an application example of the network inductor of the present application, one end of the common mode inductor 400 is connected to the chip 700 through the capacitor C3 and the capacitor C4, the other end of the common mode inductor 400 is connected to the autotransformer 500, the autotransformer 500 is connected to the network interface 800, and the center tap of the autotransformer 500 is grounded.
The embodiments of the present application have been described in detail with reference to the drawings, but the present application is not limited to the embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present application. Furthermore, the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
Claims (10)
1. A network inductor, comprising:
a magnetic core;
the first winding group is wound on the magnetic core to form a common mode inductor; the common mode inductor is provided with four connecting ends;
and the second winding group is wound on the magnetic core to form an autotransformer, and one end of the first winding group is hinged with one end of the second winding group.
2. The network inductor according to claim 1, wherein the first winding group comprises a first enameled wire and a second enameled wire, and the first enameled wire and the second enameled wire both surround the magnetic core to form a common mode inductor; the four connecting ends respectively correspond to two ends of the first enameled wire and the second enameled wire.
3. The network inductor according to claim 2, wherein the second winding group comprises a third enameled wire and a fourth enameled wire, and a tail end of the third enameled wire and a head end of the fourth enameled wire are hinged to form a center tap of the autotransformer; the autotransformer is provided with three wiring ends, and the center tap, the head end of the third enameled wire and the tail end of the fourth enameled wire are three wiring ends.
4. The network inductor according to claim 3, wherein a head end of the third enameled wire and a tail end of the first enameled wire are twisted with each other to form a first twisted end, and a tail end of the fourth enameled wire and a tail end of the second enameled wire are twisted with each other to form a second twisted end.
5. The network inductor according to claim 4, further comprising a housing, wherein the housing has a plurality of pins disposed thereon; the center tap, the head end of the first enameled wire, the head end of the second enameled wire, the first twisted wire end and the second twisted wire end are connected with the plurality of pins in a one-to-one correspondence mode.
6. The network inductor according to claim 3, wherein the first enameled wire, the second enameled wire, the third enameled wire and the fourth enameled wire are wound around the magnetic core for 3-60 turns.
7. The network inductor according to claim 6, wherein the first enameled wire, the second enameled wire, the third enameled wire and the fourth enameled wire are four enameled wires with different colors.
8. The network inductor according to claim 1, wherein the magnetic core is a ferrite core or an amorphous nanocrystalline core.
9. The network inductor of claim 1, wherein the magnetic core is a toroidal core, a square core, or an I-shaped core.
10. The network inductor according to claim 1, wherein the inductance value of the autotransformer is 30 to 450 microhenries and the impedance of the common mode inductor is 25 to 1000 ohms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122264190.6U CN216119859U (en) | 2021-09-17 | 2021-09-17 | Network inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122264190.6U CN216119859U (en) | 2021-09-17 | 2021-09-17 | Network inductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216119859U true CN216119859U (en) | 2022-03-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122264190.6U Active CN216119859U (en) | 2021-09-17 | 2021-09-17 | Network inductor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216119859U (en) |
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2021
- 2021-09-17 CN CN202122264190.6U patent/CN216119859U/en active Active
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