WO2018161943A1

WO2018161943A1 - Common-mode inductance filter

Info

Publication number: WO2018161943A1
Application number: PCT/CN2018/078472
Authority: WO
Inventors: 陈保华
Original assignee: 向睿实业有限公司
Priority date: 2017-03-08
Filing date: 2018-03-08
Publication date: 2018-09-13
Also published as: CN106712735A

Abstract

Provided is a common-mode inductance filter, comprising a first magnetic core cylinder and a first coil and a second coil wound around the first magnetic core cylinder. One end of the first magnetic core cylinder is sequentially provided with a first electrode to a fifth electrode, and the other end thereof is sequentially provided with a sixth electrode to a tenth electrode. The first coil comprises a first sub-coil to a fourth sub-coil; and the second coil comprises a fifth sub-coil to an eighth sub-coil. Two ends of the first sub-coil are electrically connected to the first electrode and the seventh electrode; two ends of the second sub-coil are electrically connected to the seventh electrode and the second electrode; two ends of the third sub-coil are electrically connected to the second electrode and the sixth electrode; two ends of the fourth sub-coil are electrically connected to the sixth electrode and the third electrode; two ends of the fifth sub-coil are electrically connected to the eighth electrode and the fourth electrode; two ends of the sixth sub-coil are electrically connected to the fourth electrode and the ninth electrode; two ends of the seventh sub-coil are electrically connected to the ninth electrode and the fifth electrode; and two ends of the eighth sub-coil are electrically connected to the fifth electrode and the tenth electrode. The common-mode inductance filter facilitates the passing of a low-frequency environment signal.

Description

Common mode inductor filter

Cross-reference to related applications

The present application claims priority to Chinese Patent Application No. JP-A No. No. No. No. No. No. No. No. No. No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No

Technical field

The present invention relates to the field of inductor technology, and in particular to a common mode inductor filter.

Background technique

Commonly used inductors are configured to provide a large resistance to high frequencies, while low frequencies such as DC, often referred to as chokes, when using larger inductors used in transformers, motors or engines. , also known as winding (Winding). Another application is that the wire passes through the magnetic material without coils, and is often used as a small inductor for high-frequency filtering. It is often called a bead according to its appearance. Therefore, an inductor, as shown in FIG. 1 , includes a magnetic core cylinder 10 and a first coil 11 fixed on the magnetic core cylinder 10; a magnetic pole 10 is provided with a first electrode 101 at one end thereof. The other end is provided with a second electrode 102; one end of the first coil 11 is electrically connected to the first electrode 101, and the other end is electrically connected to the second electrode 102, thereby forming a normal inductor.

A common common mode filter, an electronic filter mounted between an electronic device and its power source, which is used to reduce electromagnetic interference and electromagnetic interference signals transmitted between the device and the power source. Usually a high frequency signal, so the electromagnetic filter used is a low pass filter, usually composed of a capacitor and an inductor. Therefore, an inductor of a common mode filter, as shown in FIG. 2, includes a magnetic core cylinder 20 and parallel adjacent windings of the first coil 21 and the second coil 22 fixed to the magnetic core cylinder 20. The first core 201 and the second electrode 202 are sequentially disposed at one end of the magnetic core cylinder 10, and the third electrode 203 and the fourth electrode 204 are sequentially disposed at the other end; the first coil 21 is electrically connected to the first electrode 101 at one end. The other end is electrically connected to the fourth electrode 204; the second end of the second coil 22 is electrically connected to the second electrode 202, and the other end is electrically connected to the third electrode 203, thereby forming an inductor of a normal mode common mode filter.

Summary of the invention

The present invention proposes a common mode inductive filter that facilitates the passage of low frequency ambient signals in the circuit.

In view of this, the present invention provides a common mode inductive filter including a main body, the main body including a first magnetic core cylinder and a coil one and a coil two wound around the first magnetic core cylinder;

One end of the first magnetic core cylinder is provided with an electrode one, an electrode two, an electrode three, an electrode four and an electrode five, and the other end is sequentially provided with an electrode six, an electrode seven, an electrode eight, an electrode nine and an electrode ten;

The coil 1 includes a sub-coil 1, a sub-coil 2, a sub-coil 3 and a sub-coil 4; the coil 2 includes a sub-coil 5, a sub-coil 6, a sub-coil 7 and a sub-coil 8;

The two ends of the sub-coil are respectively electrically connected to the electrode one and the electrode seven; the two ends of the sub-coil are electrically connected to the electrode seven and the electrode two respectively; the three ends of the sub-coil are electrically connected to the electrode two And the electrode six; the four ends of the sub-coil are electrically connected to the electrode six and the electrode three respectively;

The two ends of the sub-coil are respectively electrically connected to the electrode eight and the electrode four; the two ends of the sub-coil are electrically connected to the electrode four and the electrode nine respectively; the two ends of the sub-coil are electrically connected to the electrode respectively And the electrode five; the two ends of the sub-coil are electrically connected to the electrode five and the electrode ten, respectively.

Further, the common mode inductor filter further includes a choke coil electrically connected to the main body, the choke coil includes a second core cylinder and a winding around the second core cylinder Coil three, coil four and coil five;

The second magnetic core cylinder is provided with an electrode X1, an electrode X2 and an electrode X3, and the other end is provided with an electrode Y1, an electrode Y2 and an electrode Y3;

The two ends of the coil are electrically connected to the electrode X1 and the electrode Y3 respectively; the two ends of the coil are electrically connected to the electrode X2 and the electrode Y2 respectively; the two ends of the coil are electrically connected to the electrode X3 and the electrode Y1 respectively .

Further, the electrode X1 is electrically connected to the electrode ten; the electrode X2 is electrically connected to the electrode IX; and the electrode X3 is electrically connected to the electrode VIII.

Further, the sub-coil 1, the sub-coil 2, the sub-coil 3 and the sub-coil 4 are connected in series.

Further, the sub-coil 5, the sub-coil 6, the sub-coil 7 and the sub-coil 8 are connected in series.

Further, the sub-coil one, the sub-coil two, the sub-coil three, the sub-coil four, the sub-coil five, the sub-coil six, the sub-coil seven and the sub-coil eight Coating on the first core cylinder layer by layer.

Further, any one or two or more of the sub-coil one, the sub-coil two, the sub-coil three and the sub-coil four are horizontally adjacently wound on the first magnetic core cylinder.

Further, any one or two or more of the sub-coil 5, the sub-coil 6, the sub-coil 7 and the sub-coil 8 are horizontally adjacently wound on the first magnetic core cylinder.

Further, the sub-coil one, the sub-coil two, the sub-coil three, the sub-coil four, the sub-coil five, the sub-coil six, the sub-coil seven or the sub-coil eight Composed of multiple wires;

One end of each of the wires is electrically connected to the electrode 1, the electrode 2, the electrode 3, the electrode 4 or the electrode 5, and the other end is electrically connected to the electrode 6, the electrode 7, the electrode 8, the electrode 9 or the electrode 10.

Further, the electrode one and the electrode ten are symmetrically parallel with respect to the first magnetic core cylinder; the electrode two and the electrode nine are symmetrically parallel with respect to the first magnetic core cylinder; The electrode VIII is symmetrically parallel with respect to the first magnetic core cylinder; the electrode 4 and the electrode VII are symmetrically parallel with respect to the first magnetic core cylinder; and the electrode 5 is opposite to the electrode 6-1 A magnetic core cylinder is symmetrically parallel.

In the common mode inductor filter provided by the embodiment of the invention, the arrangement of the plurality of electrodes at both ends of the magnetic core cylinder can increase the number of windings, so that the power of the single inductor increases, and when the common mode inductor filter is connected to a circuit, the inductor An increase in power can increase the amplitude of the signal in the circuit, thereby facilitating the passage of low frequency ambient signals in the circuit.

The above described objects, features and advantages of the present invention will become more apparent from the aspects of the appended claims.

DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments will be briefly described below. It should be understood that the following drawings show only certain embodiments of the present invention, and therefore It should be seen as a limitation on the scope, and those skilled in the art can obtain other related drawings according to these drawings without any creative work.

FIG. 1 is a schematic structural view of a conventional inductor;

2 is a schematic structural view of an existing common mode filter;

FIG. 3 is a schematic structural diagram of a common mode inductor filter according to an embodiment of the present invention;

FIG. 4 is a schematic diagram showing the electrical connection relationship of the electrodes in the common mode inductor filter shown in FIG.

The main component symbol description:

1000-common mode inductive filter; 100-body; 10, 20, 30, 70-magnetic core cylinder; 200-choke coil; 11, 21-first coil; 22-second coil; 101, 201- An electrode; 102, 202-second electrode; 203-third electrode; 204-fourth electrode; 41-coil one; 411-sub-coil; 412 sub-coil two; 413-sub-coil three; 414-sub-coil four; 42-coil two; 425-sub-coil five; 426-sub-coil six; 427-sub-coil seven; 428-sub-coil eight; 51-electrode one; 52-electrode two; 53-electrode three; 54-electrode four; - electrode five; 56-electrode six; 57-electrode seven; 58-electrode eight; 59-electrode nine; 60-electrode ten; 83-coil three; 84-coil four; 85-coil five; X1-electrode X1; - electrode; X3-electrode; Y1-electrode Y1; Y2-electrode Y2; Y3-electrode Y3.

detailed description

In order to facilitate the understanding of the present invention, a common mode inductor filter will be described more clearly and completely hereinafter with reference to the related drawings. A preferred embodiment of a common mode inductive filter is shown in the drawing. The common mode inductive filter can be implemented in many different forms and is not limited to the embodiments described herein. Therefore, the following detailed description of the embodiments of the invention in the claims All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

Example

FIG. 3 is a schematic structural diagram of a common mode inductor filter according to an embodiment of the present invention.

As shown in FIG. 3, the common mode inductor filter 1000 of the embodiment of the present invention has the effect of a common mode filter and/or an inductor, including the body 100.

The main body 100 includes a magnetic core cylinder 30 and a coil 41 and a coil 42 wound around the magnetic core cylinder 30. In this embodiment, a plurality of electrodes are respectively disposed at two ends of the magnetic core cylinder 30, and a portion between the two ends of the magnetic core cylinder 30 is a winding portion, and the coil is wound around the portion.

Specifically, one end of the magnetic core cylinder 30 is sequentially provided with an electrode 51, an electrode two 52, an electrode three 53, an electrode four 54 and an electrode five 55, and the other end is provided with an electrode six 56, an electrode seven 57, and an electrode. Eight 58, electrode nine 59 and electrode ten.

It can be understood that the electrode one 51, the electrode two 52, the electrode three 53, the electrode four 54 and the electrode five 55 are not necessarily arranged in the order of the end of the magnetic core cylinder 30, but are arranged in order to be a better embodiment; Ground, electrode six 56, electrode seven 57, electrode eight 58, electrode nine 59 and electrode ten 60 are not necessarily arranged in the order of the end of the magnetic core cylinder 30, but are arranged in a preferred embodiment.

Preferably, in the embodiment, the electrode one 51 and the electrode ten 60 are symmetrically parallel with respect to the magnetic core cylinder 30; the electrode two 52 and the electrode nine 59 are symmetric with respect to the magnetic core cylinder 30. Parallel; the electrode three 53 and the electrode eight 58 are symmetrically parallel with respect to the magnetic core cylinder 30; the electrode four 54 and the electrode seven 57 are symmetrically parallel with respect to the magnetic core cylinder 30; The electrode 65 is symmetrically parallel with respect to the magnetic core cylinder 30.

It should be noted that, in this embodiment, the electrode one 51, the electrode two 52, the electrode three 53, the electrode four 54, the electrode five 55, the electrode six 56, the electrode seven 57, the electrode eight 58, the electrode nine 59 and the electrode ten 60 It is rectangular and the two electrodes of symmetric parallel are matched in size. Of course, each electrode can be selected according to other shapes and sizes, and is not limited herein.

As shown in FIG. 4, the coil one 41 includes a sub-coil one 411, a sub-coil two 412, a sub-coil three 413, and a sub-coil four 414. The coil two 42 includes a sub-coil five 425 and a sub-coil six 426. Sub-coil seven 427 and sub-coil eight 428. It should be noted that in order to clearly indicate the electrical connection relationship between the respective sub-coils and the respective electrodes, FIG. 4 represents the sub-coils only by straight lines, and the actual shape thereof may not be elegant.

It should be noted that, in this embodiment, the sub-coil one 411, the sub-coil two 412, the sub-coil three 413, the sub-coil four 414, the sub-coil five 425, the sub-coil six 426, the sub-coil seven 427, and the sub-coil eight 428 are all A single wire consists of. Preferably, in other embodiments, the sub-coil one 411, the sub-coil two 412, the sub-coil three 413, the sub-coil four 414, the sub-coil five 425, the sub-coil six 426, the sub-coil seven 427 or the sub-coil eight 428 are composed of multiple Wire composition. In other words, the sub-coil one 411, the sub-coil two 412, the sub-coil three 413, the sub-coil four 414, the sub-coil five 425, the sub-coil six 426, the sub-coil seven 427 and the sub-coil eight 428 may each be composed of a plurality of wires. .

Further, one end of each of the wires is electrically connected to the electrode one 51, the electrode two 52, the electrode three 53, the electrode four 54 or the electrode five 55, and the other end is electrically connected to the electrode six 56, the electrode seven 57, the electrode eight 58 , electrode nine 59 and electrode ten.

In this embodiment, the two ends of the sub-coil one 411 are electrically connected to the electrode one 51 and the electrode seven 57, respectively. The two ends of the sub-coil two 412 are electrically connected to the electrode VII 57 and the electrode 252, respectively, and the two ends of the sub-coil 413 are electrically connected to the electrode 252 and the electrode 256 respectively; They are electrically connected to the electrode six 56 and the electrode three 53, respectively.

It should be noted that, in the present embodiment, the sub-coil one 411, the sub-coil two 412, the sub-coil three 413, and the sub-coil four 414 are sequentially connected in series. In other words, the coil one 41 is a continuous coil, which is divided into sub-coil one 411, sub-coil two 412, sub-coil three 413 and sub-coil according to the electrical connection relationship with each electrode for convenience of description. Four 414, so that the winding device can take the line from the electrode one 51, the line at the electrode seven 57; the line from the electrode seven 57, the line at the electrode two 52; the line from the electrode two 52, the line at the electrode six 56; From the electrode six 56 line, the electrode three 53 line.

Further, the two ends of the sub-coils 425 are respectively electrically connected to the electrode eight 58 and the electrode four 54; the two ends of the sub-coil six 426 are electrically connected to the electrode four 54 and the electrode nine 59 respectively; The two ends of the 427 are respectively electrically connected to the electrode 590 and the electrode 550. The two ends of the sub-coil 428 are electrically connected to the electrode 55 and the electrode 610, respectively.

Similarly, in the present embodiment, the sub-coil 425, the sub-coil 426, the sub-coil 427, and the sub-coil 428 are sequentially connected in series. In other words, the coil two 42 is a continuous coil, which is further divided into sub-coils 425, sub-coils 426, sub-coils 427 and sub-coils according to the electrical connection relationship with the electrodes for convenience of description. Eight 428, so that the winding device can take the line from the electrode eight 58 and the line on the electrode four 54; the line from the electrode four 54, the line at the electrode nine 59; the line from the electrode nine 59, the line at the electrode five 55; The line from the electrode five 55, the line at the electrode ten 60.

It is easy to find that this method is more convenient for the device to be wound, especially when winding back and forth, it can save the winding time, facilitate the stranding function, and improve the insertion loss function of the common mode inductor filter 1000. Similarly, sub-coil 425, sub-coil 426, sub-coil 427, and sub-coil 428 are connected in series.

As shown in FIG. 3, in this embodiment, the sub-coil one 411, the sub-coil two 412, the sub-coil three 413, the sub-coil four 414, the sub-coil five 425, the sub-coil six 426, the sub-coil seven 427, and the sub-coil eight 428 are The core cylinder 30 is coated layer by layer. Wherein, the sub-coil one 411, the sub-coil two 412, the sub-coil three 413 and the sub-coil four 414 are covered layer by layer from the inside to the outside or from the outside to the inside; the sub-coil five 425, the sub-coil six 426, the sub-coil seven 427 and the sub-coil Eight 428 is covered layer by layer from the inside to the outside or from the outside to the inside.

Specifically, the sub-coil one 411 is uniformly wound around the winding portion of the magnetic core cylinder 30 to form a first layer of an inductor or a common mode filter. It can be understood that when the sub-coil 411 is composed of a single wire, the layer after the sub-coil 411 is wound is an inductor; when the sub-coil 411 is composed of a plurality of wires, the layer after the sub-coil 411 is wound It is a common mode filter. The sub-coil 2 412 is uniformly wound around the winding portion of the magnetic core cylinder 30 and wrapped around the periphery of the sub-coil 411 to form a second layer of an inductor or a common mode filter. The sub-coils three 413 are uniformly wound around the winding portion of the magnetic core cylinder 30 and wrapped around the periphery of the sub-coil two 412 to form a third-layer inductor or common mode filter. The sub-coil four 414 is uniformly wound around the winding portion of the magnetic core cylinder 30 and wrapped around the periphery of the sub-coil three 413 to form a fourth-layer inductor or common mode filter.

Further, the sub-coils 425 are uniformly wound around the winding portion of the magnetic core cylinder 30 and wrapped around the periphery of the sub-coil 414 to form a fifth-layer inductor or common mode filter. The sub-coil 426 is evenly wound around the winding portion of the magnetic core cylinder 30 and wrapped around the periphery of the sub-coil 425 to form a sixth-layer inductor or common mode filter. The sub-coil 7427 is uniformly wound around the winding portion of the magnetic core cylinder 30 and wrapped around the periphery of the sub-coil 426 to form a seventh-layer inductor or common mode filter. The sub-coil 428 is uniformly wound around the winding portion of the magnetic core cylinder 30 and wrapped around the periphery of the sub-coil 427 to form an eighth-layer inductor or common mode filter.

In some embodiments, any two or more of the sub-coil one 411, the sub-coil two 412, the sub-coil three 413, and the sub-coil four 414 are horizontally adjacently wound around the magnetic core cylinder 30. Any two or more of the sub-coil 425, the sub-coil 426, the sub-coil 427, and the sub-coil 428 are horizontally adjacently wound around the core cylinder 30. Thus, a common mode filter can be formed even if each sub-coil is composed of a single wire.

In another embodiment, the common mode inductor filter 1000 provided by the present invention further includes a choke coil 200 electrically connected to the main body 100. The choke coil 200 includes a core cylinder 70 and a coil three 83, a coil four 84 and a coil five 85 wound around the core cylinder 70.

One end of the magnetic core cylinder 70 is provided with an electrode X1, an electrode X2 and an electrode X3, and the other end is provided with an electrode Y1, an electrode Y2 and an electrode Y3.

In this embodiment, the electrode X1 is electrically connected to the electrode XX; the electrode X2 is electrically connected to the electrode IX 59; the electrode X3 is electrically connected to the electrode VIII, thereby turbulent The coil 200 is electrically connected to the main body 100. The choke coil 200 is inductively coupled to the body 100.

Further, in this embodiment, the two ends of the coil three 83 are electrically connected to the electrode X1 and the electrode Y3, respectively; the two ends of the coil four 84 are electrically connected to the electrode X2 and the electrode Y2, respectively; The terminals are electrically connected to the electrode X3 and the electrode Y1, respectively.

It should be noted that, in this embodiment, the coil three 83, the coil four 84, and the coil five 85 are each composed of a single wire. Preferably, in other embodiments, coil three 83, coil four 84 or coil five 85 are comprised of a plurality of wires. In other words, coil three 83, coil four 84, and coil five 85 may each be composed of a plurality of wires. Further, one end of each of the wires is electrically connected to the electrode X1, the electrode X2 or the electrode X3, and the other end is electrically connected to the electrode Y1, the electrode Y2 or the electrode Y3.

As shown in FIG. 3, in the present embodiment, the coil three 83, the coil four 84, and the coil five 85 are coated layer by layer from the inside to the outside of the core cylinder 30. Specifically, the coil three 83 is uniformly wound around the winding portion of the magnetic core cylinder 70 to form a first layer of an inductor or a common mode filter. It can be understood that when the coil three 83 is composed of a single wire, the layer after winding the coil 83 is an inductor; when the coil three 83 is composed of a plurality of wires, the layer after the coil three 83 is wound is a common mode filter. Device. The coils 84 are evenly wound around the winding portion of the core cylinder 70 and wrapped around the periphery of the coils 83 to form a second layer of inductors or common mode filters. The coil 5 85 is evenly wound around the winding portion of the core cylinder 70 and wrapped around the periphery of the coil 84 to form a third layer of inductor or common mode filter.

In all of the examples shown and described herein, any specific values are to be construed as merely illustrative and not limiting, and thus, other examples of the exemplary embodiments may have different values. It should be noted that similar reference numerals and letters indicate similar items in the following figures, and therefore, once an item is defined in a drawing, it is not necessary to further define and explain it in the subsequent drawings.

In the several embodiments provided herein, it should be understood that the disclosed apparatus can be implemented in other ways. The device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner. For example, multiple units or components may be combined or Can be integrated into another, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some communication interface, device or unit, and may be electrical, mechanical or otherwise.

The units described for the separate components may or may not be physically separate, and the components displayed for the units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

The above is only a specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention. It should be covered by the scope of the present invention. Therefore, the scope of the invention should be determined by the scope of the appended claims.

Claims

A common mode inductive filter, comprising: a body, the body comprising a first core cylinder and a coil 1 and a coil 2 wound around the first core cylinder;

One end of the first magnetic core cylinder is provided with an electrode one, an electrode two, an electrode three, an electrode four and an electrode five, and the other end is sequentially provided with an electrode six, an electrode seven, an electrode eight, an electrode nine and an electrode ten;

The coil 1 includes a sub-coil 1, a sub-coil 2, a sub-coil 3 and a sub-coil 4; the coil 2 includes a sub-coil 5, a sub-coil 6, a sub-coil 7 and a sub-coil 8;

The two ends of the sub-coil are respectively electrically connected to the electrode one and the electrode seven; the two ends of the sub-coil are electrically connected to the electrode seven and the electrode two respectively; the three ends of the sub-coil are electrically connected to the electrode two And the electrode six; the four ends of the sub-coil are electrically connected to the electrode six and the electrode three respectively;

The two ends of the sub-coil are respectively electrically connected to the electrode eight and the electrode four; the two ends of the sub-coil are electrically connected to the electrode four and the electrode nine respectively; the two ends of the sub-coil are electrically connected to the electrode respectively And the electrode five; the two ends of the sub-coil are electrically connected to the electrode five and the electrode ten, respectively.
The common mode inductor filter according to claim 1, further comprising a choke coil electrically connected to the main body, the choke coil comprising a second core cylinder and being wound around the a coil 3 on the two core cylinders, a coil four and a coil five;

The second magnetic core cylinder is provided with an electrode X1, an electrode X2 and an electrode X3, and the other end is provided with an electrode Y1, an electrode Y2 and an electrode Y3;

The two ends of the coil are electrically connected to the electrode X1 and the electrode Y3 respectively; the two ends of the coil are electrically connected to the electrode X2 and the electrode Y2 respectively; the two ends of the coil are electrically connected to the electrode X3 and the electrode Y1 respectively .
The common mode inductor filter according to claim 2, wherein the electrode X1 is electrically connected to the electrode ten; the electrode X2 is electrically connected to the electrode nine; and the electrode X3 is electrically connected At the electrode eight.
The common mode inductor filter according to claim 1, wherein said sub-coil one, said sub-coil two, said sub-coil three and said sub-coil are sequentially connected in series.
The common mode inductor filter according to claim 1, wherein said sub-coil 5, said sub-coil 6, said sub-coil 7, and said sub-coils are sequentially connected in series.
The common mode inductor filter according to claim 1, wherein said sub-coil one, said sub-coil two, said sub-coil three, said sub-coil four, said sub-coil five, said sub-function The coil six, the sub-coil seven and the sub-coil eight are coated layer by layer on the first core cylinder.
The common mode inductor filter according to claim 1, wherein any two or more horizontal phases of said sub-coil 1, said sub-coil 2, said sub-coil 3 and said sub-coil 4 The adjacent winding is disposed on the first magnetic core cylinder.
The common mode inductor filter according to claim 1, wherein any two or more horizontal phases of said sub-coil 5, said sub-coil 6, said sub-coil 7 and said sub-coils The adjacent winding is disposed on the first magnetic core cylinder.
The common mode inductor filter according to claim 1, wherein said sub-coil one, said sub-coil two, said sub-coil three, said sub-coil four, said sub-coil five, said sub-function a coil six, the sub-coil seven or the sub-coil eight is composed of a plurality of wires;

One end of each of the wires is electrically connected to the electrode 1, the electrode 2, the electrode 3, the electrode 4 or the electrode 5, and the other end is electrically connected to the electrode 6, the electrode 7, the electrode 8, the electrode 9 or the electrode 10.
The common mode inductor filter according to claim 1, wherein said electrode one is symmetrically parallel with said electrode ten with respect to said first magnetic core cylinder; said electrode two is opposite said said electrode nine The first magnetic core cylinder is symmetrically parallel; the electrode three and the electrode eight are symmetrically parallel with respect to the first magnetic core cylinder; the electrode four is symmetric with the electrode seven and the first magnetic core cylinder is parallel The electrode 5 and the electrode 6 are symmetrically parallel with respect to the first core cylinder.