Magnetic assembly

Abstract

The utility model provides a kind of magnetic assembly, it is sleeved in electric power transmission cable, and magnetic assembly at least includes first magnetic core, with first side column, second side column and middle column.First side column and second side column are arranged on bottom surface and are arranged along second direction.First side column and second side column have same side column width in first direction.Middle column is arranged on bottom surface and is located between first side column and second side column.Middle column is connected to bottom surface.First magnetic core can be divided into first part and second part by third plane, third plane is perpendicular to first plane and passes through the midline of bottom surface along second direction.The volume of first side column and second side column located in first part is different from the volume of first side column and second side column located in second part, or the volume of middle column located in first part is different from the volume of middle column located in second part.

Description

Technical Field

[0001] This utility model relates to a magnetic component, and more particularly to a magnetic component suitable for power transmission cables, which can combine inductance saturation and impedance matching to effectively suppress current oscillation. Background Technology

[0002] To ensure the reliable operation of electronic devices or systems while meeting relevant electromagnetic compatibility standards, it is necessary to address the issue of electromagnetic interference (EMI).

[0003] In applications involving long cables, the input end of the cable is connected to a high-frequency inverter, while the output end is connected to a high-frequency AC or DC power supply. Within the EMI testing frequency range, the characteristic impedance of the long cable is not matched to that of the inverter. Therefore, current oscillations occur in the cable, generating EMI. Thus, eliminating current oscillations in long cables is crucial for resolving EMI issues in such applications.

[0004] Therefore, developing a magnetic component that can improve upon the aforementioned defects of known technologies is an urgent need at present. Utility Model Content

[0005] The purpose of this invention is to provide a magnetic component suitable for power transmission cables, which combines inductance saturation and impedance matching to effectively suppress current oscillations. The magnetic component is fitted between the input end and the transmission line of the power transmission cable. When the main body of the magnetic component consists of two magnetic cores connected together, the side posts and center posts of the dissimilar cores can respectively form side post gaps and center post gaps. By adjusting the side post gaps and center post gaps, the saturation state of the magnetic component during oscillating current changes can be controlled, effectively suppressing EMI interference while reducing the losses generated by the magnetic component.

[0006] According to one aspect of the present invention, a magnetic component is provided, applicable to power transmission cables. The magnetic component is sleeved on the power transmission cable and includes at least a first magnetic core. The first magnetic core includes a bottom component, a first side post, a second side post, and a middle post. The bottom component includes a bottom surface extending along two perpendicular directions, and is symmetrical in both directions. The first and second side posts are disposed on the bottom surface and arranged along the second direction, with at least a portion extending from the bottom surface away from the bottom component to a first plane. The first and second side posts have the same side post width in the first direction. The middle post is disposed on the bottom surface and located between the first and second side posts, with at least a portion extending from the bottom surface away from the bottom component to a second plane. The middle post includes a first surface and a second surface opposite to each other, the second surface being connected to the bottom surface, and is symmetrical in the first direction. The first magnetic core can be divided into a first part and a second part by a third plane, the third plane being perpendicular to the first plane and passing through the centerline of the bottom surface along the second direction. The volumes of the first and second side pillars located in the first part are different from the volumes of the first and second side pillars located in the second part, or the volume of the central pillar located in the first part is different from the volume of the central pillar located in the second part.

[0007] In one embodiment, the magnetic component further includes a second magnetic core, which has the same structure as the first magnetic core. The first plane or the second plane is a splicing surface, and the second magnetic core and the first magnetic core are spliced ​​together through the splicing surface to form the magnetic core body of the magnetic component.

[0008] In one embodiment, the first magnetic core and the second magnetic core have the same structure and are spliced ​​in opposite directions to form the magnetic core body of the magnetic component. That is, the magnetic core body of the magnetic component can be divided into a first side magnetic core body part and a second side magnetic core body part by a third plane, and the first side magnetic core body part and the second side magnetic core body part have the same volume.

[0009] In one embodiment, the first magnetic core and / or the second magnetic core are integrally formed.

[0010] In one embodiment, the volumes of the first and second side posts in the first part are different from those in the second part. The two magnetic cores of the magnetic component have corresponding windings, and one end of the winding extends out of the magnetic core along the second direction from the smaller part of the first and second parts, while the other end extends out of the magnetic core from the first direction.

[0011] In one embodiment, the first side post and the second side post have the same side post thickness in the second direction.

[0012] In one embodiment, the volumes of the first and second side posts located in the first part are different from those of the first and second side posts located in the second part. At least a portion of the first or second side post located in the part with smaller volume does not extend to the splicing surface, while the first and second side posts located in the part with larger volume both extend to the splicing surface.

[0013] In one embodiment, the volume of the central column in the first part is different from the volume of the central column in the second part. At least a portion of the central column in the part with a smaller volume does not extend to the splicing surface, while all the central columns in the part with a larger volume extend to the splicing surface.

[0014] In one embodiment, the width of the central column is not greater than the width of the bottom component.

[0015] In one embodiment, the first magnetic core and the second magnetic core are E-type magnetic cores, EER-type magnetic cores, EQ-type magnetic cores or PQ-type magnetic cores, and the cross-sectional shape of the central column is square, circular, elliptical or racetrack-shaped.

[0016] The beneficial effect of this utility model is that the embodiment of this utility model provides a magnetic component to solve the problem of current oscillation in power transmission cables. The magnetic component is sleeved between the input end and the transmission line of the power transmission cable. When the magnetic core body is composed of two magnetic cores connected together, the side posts and middle posts of the different magnetic cores can respectively form side post gaps and middle post gaps. By adjusting the shape changes of the side posts and middle posts, the saturation state of the magnetic component when the oscillating current changes can be controlled, effectively suppressing EMI interference and reducing the loss generated by the magnetic component. Attached Figure Description

[0017] Figure 1A This is a perspective structural diagram of the magnetic component according to the first embodiment of the present utility model.

[0018] Figure 1B and Figure 1C This is an exploded view of the magnetic core in the magnetic assembly of the first embodiment of the present utility model.

[0019] Figure 1D This is a three-dimensional structural diagram of the magnetic component according to the first embodiment of the present utility model.

[0020] Figure 2A This is a three-dimensional structural diagram of the magnetic core in the magnetic assembly of the second embodiment of the present utility model.

[0021] Figure 2B and Figure 2C This is an exploded view of the magnetic core in the magnetic assembly of the second embodiment of the present invention.

[0022] Figure 3A This is a three-dimensional structural diagram of the magnetic core in the magnetic assembly according to the third embodiment of the present invention.

[0023] Figure 3B and Figure 3C This is an exploded view of the magnetic core in the magnetic assembly of the third embodiment of the present invention.

[0024] Figure 4A This is a three-dimensional structural diagram of the magnetic core in the magnetic assembly of the fourth embodiment of the present utility model.

[0025] Figure 4B and Figure 4C This is an exploded view of the magnetic core in the magnetic assembly of the fourth embodiment of the present invention.

[0026] Figure 5A This is a three-dimensional structural diagram of the magnetic core in the magnetic assembly of the fifth embodiment of the present invention.

[0027] Figure 5B and Figure 5C This is an exploded view of the magnetic core in the magnetic assembly of the fifth embodiment of the present invention.

[0028] Figure 6A This is a three-dimensional structural diagram of the magnetic core in the magnetic assembly of the sixth embodiment of the present utility model.

[0029] Figure 6B and Figure 6C This is an exploded view of the magnetic core in the magnetic assembly of the sixth embodiment of the present invention.

[0030] Figure 7A This is a three-dimensional structural diagram of the magnetic core in the magnetic assembly of the seventh embodiment of the present invention.

[0031] Figure 7B and Figure 7C This is an exploded view of the magnetic core in the magnetic assembly of the seventh embodiment of the present invention.

[0032] Figure 8A This is a three-dimensional structural diagram of the magnetic core in the magnetic assembly of the eighth embodiment of the present invention.

[0033] Figure 8B and Figure 8C This is an exploded view of the magnetic core in the magnetic assembly of the eighth embodiment of the present invention.

[0034] Figure 9A This is a three-dimensional structural diagram of the magnetic core in the magnetic assembly of the ninth embodiment of the present invention.

[0035] Figure 9B and Figure 9C This is an exploded view of the magnetic core in the magnetic assembly of the ninth embodiment of the present invention.

[0036] Figure 10A This is a three-dimensional structural diagram of the magnetic core in the magnetic assembly of the tenth embodiment of the present utility model.

[0037] Figure 10B and Figure 10C This is an exploded view of the magnetic core in the magnetic assembly of the tenth embodiment of the present invention.

[0038] Figure 11A This is a three-dimensional structural diagram of the magnetic core in the magnetic component of the eleventh embodiment of the present utility model.

[0039] Figure 11B and Figure 11C This is an exploded view of the magnetic core in the magnetic assembly of the eleventh embodiment of the present invention.

[0040] Figure 12A This is a three-dimensional structural diagram of the magnetic core in the magnetic assembly of the twelfth embodiment of the present invention.

[0041] Figure 12B and Figure 12C This is an exploded view of the magnetic core in the magnetic assembly of the twelfth embodiment of the present invention.

[0042] Figure 13A This is a three-dimensional structural diagram of the magnetic core in the magnetic assembly of the thirteenth embodiment of the present invention.

[0043] Figure 13B and Figure 13C This is an exploded view of the magnetic core in the magnetic assembly of the thirteenth embodiment of the present invention.

[0044] Figure 14A This is a three-dimensional structural diagram of the magnetic core in the magnetic assembly according to the fourteenth embodiment of the present invention.

[0045] Figure 14B and Figure 14C This is an exploded view of the magnetic core in the magnetic assembly of the fourteenth embodiment of the present invention.

[0046] Figure 15A This is a three-dimensional structural diagram of the magnetic core in the magnetic assembly according to the fifteenth embodiment of the present utility model.

[0047] Figure 15B and Figure 15C This is an exploded view of the magnetic core in the magnetic assembly of the fifteenth embodiment of the present invention.

[0048] Figure 16A This is a three-dimensional structural diagram of the magnetic core in the magnetic assembly of the sixteenth embodiment of the present invention.

[0049] Figure 16Band Figure 16C This is an exploded view of the magnetic core in the magnetic assembly of the sixteenth embodiment of the present invention.

[0050] The attached figures are labeled as follows:

[0051] 1a, 1b, 1c, 1d, 1e, 1f, 1g, 1h, 1i, 1j, 1k, 1l, 1m, 1n, 1o, 1p: Magnetic components

[0052] 10a, 10b, 10c, 10d, 10e, 10f, 10g, 10h, 10i, 10j, 10k, 10l, 10m, 10n, 10o, 10p: First magnetic core

[0053] 10a', 10b', 10c', 10d', 10e', 10f', 10g', 10h', 10i', 10j', 10k', 10l', 10m', 10n', 10o', 10p': Second magnetic core

[0054] 101: Main body of the first side magnetic core

[0055] 102: Main body of the second side magnetic core

[0056] 11: Bottom Component

[0057] 12: Bottom surface

[0058] 20, 20': First side post

[0059] 201: Front side of the first side post

[0060] 202: Rear side of the second side post

[0061] 21: Cutting Structure

[0062] 22: Trapezoidal structure

[0063] 30, 30': Second side post

[0064] 301: Front side of the second side post

[0065] 302: Rear side of the second side post

[0066] 31: Cutting surface

[0067] 32: Trapezoidal structure

[0068] 40, 40': Center Post

[0069] 401: Front side of the central pillar

[0070] 402: Rear side of the central post

[0071] 41: Second page

[0072] 42: First Page

[0073] 43: Cutting surface

[0074] 44: Trapezoidal structure

[0075] S1: First plane

[0076] S2: Second plane

[0077] S3: Third plane

[0078] W: Winding

[0079] C: Cable

[0080] X, Y, Z: Axes Detailed Implementation

[0081] Some typical embodiments embodying the features and advantages of this utility model will be described in detail in the following description. It should be understood that this utility model can have various variations in different ways, all of which do not depart from the scope of this utility model, and the descriptions and drawings herein are for illustrative purposes only and not for limiting the utility model. For example, if the following description of a first feature disposed on or above a second feature indicates that it includes embodiments where the first and second features are in direct contact, and also includes embodiments where additional features may be disposed between the first and second features, so that the first and second features may not be in direct contact. Furthermore, different embodiments in this disclosure may use repeated reference numerals and / or markings. These repetitions are for simplification and clarity and are not intended to limit the relationships between the various embodiments and / or the described appearance structures. Moreover, to facilitate the description of the relationship between one element or feature component and another (plural) element or feature component in the drawings, spatially related terms such as "upper," "lower," "bottom," "front," "rear," and similar terms may be used. In addition to the orientations shown in the accompanying drawings, spatially relevant terms are used to cover different orientations of the device in use or operation. The device may also be otherwise positioned (e.g., rotated 90 degrees or located in other orientations), and the descriptions of the spatially relevant terms used will be interpreted accordingly. Furthermore, when an element is referred to as being “connected to” another element, it may be directly connected to or coupled to the other element, or there may be intervening components. Although the numerical ranges and parameters of the broad scope of this disclosure are approximate, values ​​are stated as precisely as possible in specific examples. Additionally, it is understood that while terms such as “first,” “second,” etc., may be used in the claims to describe different elements, these elements should not be limited by these terms, and the elements described accordingly in the embodiments are represented by different element symbols. These terms are used to distinguish different components. For example, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element without departing from the scope of the embodiments. The term “and / or” as thus used includes any or all combinations of one or more of the related listed items. Except in operational / working instances, or unless expressly stated otherwise, all numerical ranges, quantities, values, and percentages (e.g., those percentages of thickness, height, gap, and the like) disclosed herein should be understood to be modified by the terms “approximately” or “substantially” in all embodiments. Accordingly, unless indicated to the contrary, the numerical parameters set forth in this disclosure and the appended claims are approximate values ​​that may vary as necessary. For example, each numerical parameter should be interpreted at least according to the number of significant figures stated and by applying ordinary rounding principles. Ranges may be expressed herein as from one endpoint to another or between two endpoints. All ranges disclosed herein include endpoints unless otherwise specified.

[0082] Figures 1A to 1CThis invention discloses a magnetic component according to a first embodiment of the present invention. In this embodiment, the magnetic component 1a is, for example, suitable for a power transmission cable C. The magnetic component 1a is sleeved on the power transmission cable C, which passes through the magnetic component 1a from front to back, for example, along the reverse X-axis direction. The magnetic component 1a includes at least a first magnetic core 10a. The first magnetic core 10a is a PQ type magnetic core, including a bottom component 11, a first side post 20, a second side post 30, and a middle post 40. The middle post 40 has a conventional cylindrical magnetic core structure. The bottom component 11 of the first magnetic core 10a includes a bottom surface 12. The bottom surface 12 extends along a first direction (i.e., the X-axis direction) and a second direction (i.e., the Y-axis direction) perpendicular to each other, parallel to the XY plane, and has a symmetrical structure in both the first direction (i.e., the X-axis direction) and the second direction (i.e., the Y-axis direction). The first side post 20 and the second side post 30 are spatially opposite to each other, disposed on the bottom surface 12 and arranged along the second direction (i.e., the Y-axis direction), located on two opposite sides of the bottom surface 12. Both the first side post 20 and the second side post 30 extend from the bottom surface 12 in a direction away from the bottom component 11 (i.e., the Z-axis direction) to the first plane S1. Furthermore, in this embodiment, the first side post 20 and the second side post 30 have the same side post width relative to the bottom component 11 in the first direction (i.e., the X-axis direction), and are smaller than the width of the bottom component 11 in the first direction (i.e., the X-axis direction). The middle post 40 is disposed on the bottom surface 12 and located between the first side post 20 and the second side post 30, extending from the bottom surface 12 in a direction away from the bottom component 11 (i.e., the Z-axis direction) to the second plane S2. In this embodiment, the width of the middle post 40 in the first direction (i.e., the X-axis direction) is not greater than the width of the bottom component 11. The central pillar 40 includes a first surface 42 and a second surface 41 facing each other. The second surface 41 is connected to the bottom surface 12, and the central pillar 40 has a symmetrical structure in the first direction (i.e., the X-axis direction). The center line of symmetry passes through the center of the central pillar 40 and is parallel to the first direction (i.e., the X-axis direction). The first magnetic core 10a can be divided into a first part and a second part by a third plane S3. Relative to the transmission direction defined by the aforementioned power transmission cable C, the first part is located on the front side of the first magnetic core 10a, and the second part is located on the rear side of the first magnetic core 10a. In this embodiment, the third plane S3 is perpendicular to the first plane S1 and passes through the bottom surface 12 along the center line of the first direction (i.e., the X-axis direction). It is worth noting that in this embodiment, the first side pillar 20 also includes a cutting surface 21, which is, for example, a cutting structure formed by cutting a conventional magnetic core structure to form a cutting structure adjacent to the front side of the first side pillar 20. The second side pillar 30 also includes a cutting surface 31, which is, for example, a cutting structure formed by cutting a conventional magnetic core structure to form a cutting structure adjacent to the front side of the second side pillar 30.Furthermore, when the third plane S3 divides the first magnetic core 10a into a front first part and a rear second part, it simultaneously divides the first side post 20 into a first side post front side 201 and a second side post rear side 202, the second side post 30 into a second side post front side 301 and a second side post rear side 302, and the middle post 40 into a middle post front side 401 and a middle post rear side 402. The middle post front side 401 and the middle post rear side 402 have the same volume, while the volume of the first side post front side 201 is smaller than the volume of the second side post rear side 202, and the volume of the second side post front side 301 is smaller than the volume of the second side post rear side 302. In other words, the volumes of the first side post 20 and the second side post 30 located in the front first part are different from the volumes of the first side post 20 and the second side post 30 located in the rear second part.

[0083] In this embodiment, the magnetic component 1a further includes a second magnetic core 10a', which has the same structure as the first magnetic core 10a and is joined together in opposite directions to form the magnetic component 1a. Preferably, the first magnetic core 10a and / or the second magnetic core 10a' are integrally formed structures, constituting an integrally formed magnetic component 1a. In this embodiment, the second magnetic core 10a' is also a PQ type magnetic core, including a bottom component 11, a first side post 20', a second side post 30', and a middle post 40'. The first side post 20' also includes a cutting surface 21, which is formed, for example, by cutting a conventional magnetic core structure to form a cutting structure adjacent to the rear side of the first side post 20'. The second side post 30' also includes a cutting surface 31, which is formed, for example, by cutting a conventional magnetic core structure to form a cutting structure adjacent to the rear side of the second side post 30'. Both the first side post 20' and the second side post 30' extend from the bottom surface 12 toward the first plane S1 in a direction away from the bottom component 11. When the third plane S3 divides the second magnetic core 10a' into a front first part and a rear second part, it also divides the first side post 20' into a first side post front side 201 and a second side post rear side 202, the second side post 30' into a second side post front side 301 and a second side post rear side 302, and the middle post 40' into a middle post front side 401 and a middle post rear side 402. The middle post front side 401 and the middle post rear side 402 have the same volume, but the volume of the first side post front side 201 is larger than the volume of the second side post rear side 202, and the volume of the second side post front side 301 is larger than the volume of the second side post rear side 302.

[0084] It is worth noting that the first plane S1 of the side post and the second plane S2 of the middle post are both parallel to the XY plane, but not necessarily on the same plane. Preferably, the second plane S2 is slightly lower than the first plane S1, by a margin in millimeters such as 0.01mm, 0.1mm, or 1mm, so that an air gap can be formed between the first magnetic core 10a and the second magnetic core 10a' when they are joined. In other embodiments, the first magnetic core 10a and the second magnetic core 10a' can use either the first plane S1 or the second plane S2 as the joining surface, so that the second magnetic core 10a' and the first magnetic core 10a structure are joined through the joining surface to form the core body of the magnetic component 1a, and the air gap is set. Of course, this utility model is not limited to this.

[0085] In addition, in this embodiment, the magnetic component 1a is not limited to being directly sleeved on the power transmission cable C. Figure 1D This is a perspective view of another magnetic component according to a first embodiment of the present invention. In this embodiment, the volumes of the first side post 20 and the second side post 30 located in the front first part are different from those of the first side post 20 and the second side post 30 located in the rear second part. The first magnetic core 10a and the second magnetic core 10a' of the magnetic component 1a each have corresponding windings W. In one embodiment, one end of the winding W extends from the front of the first magnetic core 10a along a second direction (i.e., the Y-axis direction) out of the first magnetic core 10a, and the other end extends from the first direction (i.e., the X-axis direction) out of the first magnetic core 10a, and is further connected to the power transmission cable C. In one embodiment, one end of the winding W extends from the rear of the second magnetic core 10a' along a second direction (i.e., the Y-axis direction) out of the second magnetic core 10a', and the other end extends from the first direction (i.e., the X-axis direction) out of the second magnetic core 10a', and is further connected to the power transmission cable C. In other words, the volumes of the first side posts 20, 20' and the second side posts 30, 30' located in the first part on the front side are different from the volumes of the first side posts 20, 20' and the second side posts 30, 30' located in the second part. The two magnetic cores of the magnetic component 1a each have corresponding windings W, and one end of the winding W extends from the smaller portion of the first part on the front side and the second part on the rear side along the second direction (i.e., the Y-axis direction), while the other end extends from the first direction (i.e., the X-axis direction) to further connect to the power transmission cable C. Of course, this utility model is not limited to this.

[0086] It should be noted that since the first magnetic core 10a and the second magnetic core 10a' have the same structure, they can be joined in reverse to form the core body of the magnetic component 1a. This allows the core body of the magnetic component 1a to be divided into a first-side core body portion 101 and a second-side core body portion 102 by the third plane S3, with the first-side core body portion 101 and the second-side core body portion 102 having the same volume. Therefore, the magnetic component 1a of this invention can change the frequency at the maximum resistance value to be the same as or close to the current oscillation frequency (self-resonant frequency of the power transmission cable) by adjusting the size and shape of the air gap, thus achieving slow saturation of the inductance. When the magnetic component 1a is fitted onto the power transmission cable C, impedance matching saturation inductance can be achieved. When the input current of the power transmission cable C oscillates, the added impedance matching inductance is active and unsaturated. As the current increases, the inductance gradually saturates, reducing losses and thus lowering the temperature of the impedance matching saturation inductor. In other words, while suppressing EMI interference, the losses of the added matching inductor are also reduced.

[0087] Figures 2A to 2C This invention discloses the structure of the magnetic core in the magnetic assembly according to the second embodiment of the present invention. In this embodiment, the magnetic assembly 1b and... Figures 1A to 1C The magnetic components 1a shown are similar, and the same component designations represent the same components, structures, and functions, which will not be described again here. In this embodiment, the magnetic component 1b includes a first magnetic core 10b and a second magnetic core 10b', both of which are integrally formed PQ type magnetic cores, and the two are spliced ​​in opposite directions to form the core body of the magnetic component 1b.

[0088] In this embodiment, the first side post 20 further includes a trapezoidal structure 22, for example, formed by cutting a conventional magnetic core structure and adjacent to the front side of the first side post 20. The second side post 30 further includes a trapezoidal structure 32, for example, formed by cutting a conventional magnetic core structure and adjacent to the front side of the second side post 30. Thus, at least a portion of the first side post 20 and the second side post 30 extend from the bottom surface 12 in a direction away from the bottom component 11 (i.e., the Z-axis direction) to the first plane S1. The middle post 40 extends from the bottom surface 12 in a direction away from the bottom component 11 (i.e., the Z-axis direction) to the second plane S2. Furthermore, when the third plane S3 divides the first magnetic core 10b into a front first part and a rear second part, it simultaneously divides the first side post 20 into a first side post front side 201 and a second side post rear side 202, the second side post 30 into a second side post front side 301 and a second side post rear side 302, and the middle post 40 into a middle post front side 401 and a middle post rear side 402. The front side 401 and the rear side 402 of the central column have the same volume, while the volume of the front side 201 of the first side column is smaller than the volume of the rear side 202 of the second side column, and the volume of the front side 301 of the second side column is smaller than the volume of the rear side 302 of the second side column.

[0089] In this embodiment, the first side post 20' further includes a trapezoidal structure 22, for example, formed by cutting a conventional magnetic core structure and adjacent to the rear side of the first side post 20'. The second side post 30' further includes a trapezoidal structure 32, for example, formed by cutting a conventional magnetic core structure and adjacent to the rear side of the second side post 30'. Thus, at least a portion of the first side post 20' and the second side post 30' extends from the bottom surface 12 toward the direction away from the bottom component 11 to the first plane S1. The middle post 40' extends from the bottom surface 12 toward the direction away from the bottom component 11 to the second plane S2. When the third plane S3 divides the second magnetic core 10b' into a front first part and a rear second part, it also divides the first side post 20' into a first side post front side 201 and a second side post rear side 202, the second side post 30' into a second side post front side 301 and a second side post rear side 302, and the middle post 40' into a middle post front side 401 and a middle post rear side 402. The front side 401 and the rear side 402 of the central column have the same volume, while the volume of the front side 201 of the first side column is greater than the volume of the rear side 202 of the second side column, and the volume of the front side 301 of the second side column is greater than the volume of the rear side 302 of the second side column.

[0090] Thus, the volumes of the first side posts 20, 20' and the second side posts 30, 30' located in the first part on the front side are different from the volumes of the first side posts 20, 20' and the second side posts 30, 30' located in the second part on the rear side. At least a portion of the first side posts 20, 20' or the second side posts 30, 30' located in the part with smaller volume does not extend to the splicing surface, while the first side posts 20, 20' and the second side posts 30, 30' located in the part with larger volume both extend to the splicing surface.

[0091] In this embodiment, the first magnetic core 10b and the second magnetic core 10b' can be spliced ​​in reverse to achieve slow saturation of the inductance in power transmission cables, which suppresses EMI interference and reduces the loss of the added matching inductance.

[0092] Figures 3A to 3C This invention discloses the structure of the magnetic core in a magnetic assembly according to a third embodiment of the present invention. In this embodiment, the magnetic assembly 1c and... Figures 1A to 1C The magnetic components 1a shown are similar, and the same component designations represent the same components, structures, and functions, which will not be described again here. In this embodiment, the magnetic component 1c includes a first magnetic core 10c and a second magnetic core 10c', both of which are integrally formed PQ type magnetic cores, and the two are spliced ​​in opposite directions to form the core body of the magnetic component 1c.

[0093] In this embodiment, the central pillar 40 includes a cutting surface 43, which is formed, for example, by cutting a conventional magnetic core structure to create a cutting structure adjacent to the front side of the central pillar 40. The central pillar 40 extends from the bottom surface 12 toward the second plane S2 in a direction away from the bottom component 11. The first side pillar 20 and the second side pillar 30 both extend from the bottom surface 12 toward the first plane S1 in a direction away from the bottom component 11. When the third plane S3 divides the first magnetic core 10c into a front first part and a rear second part, it also divides the first side pillar 20 into a first side pillar front side 201 and a second side pillar rear side 202, the second side pillar 30 into a second side pillar front side 301 and a second side pillar rear side 302, and the central pillar 40 into a central pillar front side 401 and a central pillar rear side 402. The volume of the front side 401 of the central column is smaller than the volume of the rear side 402 of the central column, while the volume of the front side 201 of the first side column is equal to the volume of the rear side 202 of the second side column, and the volume of the front side 301 of the second side column is equal to the volume of the rear side 302 of the second side column.

[0094] In this embodiment, the central column 40' further includes a cutting surface 43, which is, for example, a cutting structure formed by cutting a conventional magnetic core structure to form the rear side adjacent to the central column 40'. The central column 40' extends from the bottom surface 12 in a direction away from the bottom component 11 to the second plane S2. The first side column 20' and the second side column 30' both extend from the bottom surface 12 in a direction away from the bottom component 11 to the first plane S1. When the third plane S3 divides the second magnetic core 10c' into a front first part and a rear second part, it also divides the first side column 20' into a first side column front side 201 and a second side column rear side 202, divides the second side column 30' into a second side column front side 301 and a second side column rear side 302, and divides the central column 40' into a central column front side 401 and a central column rear side 402. The volume of the front side 401 of the central column is greater than the volume of the rear side 402 of the central column, while the volume of the front side 201 of the first side column is equal to the volume of the rear side 202 of the second side column, and the volume of the front side 301 of the second side column is equal to the volume of the rear side 302 of the second side column.

[0095] Thus, the first magnetic core 10c and the second magnetic core 10c' can be spliced ​​in reverse to achieve slow saturation of the inductance in power transmission cables, which suppresses EMI interference and reduces the loss of the added matching inductance.

[0096] Figures 4A to 4C This invention discloses the structure of the magnetic core in the magnetic assembly according to the fourth embodiment of the present invention. In this embodiment, the magnetic assembly 1d and... Figures 1A to 1C The magnetic components 1a shown are similar, and the same component designations represent the same components, structures, and functions, which will not be described again here. In this embodiment, the magnetic component 1d includes a first magnetic core 10d and a second magnetic core 10d', both of which are integrally formed PQ type magnetic cores, and the two are spliced ​​in opposite directions to form the core body of the magnetic component 1d.

[0097] In this embodiment, the central pillar 40 includes a trapezoidal structure 44, for example, formed by cutting a conventional magnetic core structure and adjacent to the front side of the central pillar 40. Thus, at least a portion of the central pillar 40 extends from the bottom surface 12 in a direction away from the bottom component 11 to the second plane S2. The first side pillar 20 and the second side pillar 30 both extend from the bottom surface 12 in a direction away from the bottom component 11 to the first plane S1. When the third plane S3 divides the first magnetic core 10d into a front first part and a rear second part, it also divides the first side pillar 20 into a first side pillar front side 201 and a second side pillar rear side 202, divides the second side pillar 30 into a second side pillar front side 301 and a second side pillar rear side 302, and divides the central pillar 40 into a central pillar front side 401 and a central pillar rear side 402. The volume of the front side 401 of the central column is smaller than the volume of the rear side 402 of the central column, while the volume of the front side 201 of the first side column is equal to the volume of the rear side 202 of the second side column, and the volume of the front side 301 of the second side column is equal to the volume of the rear side 302 of the second side column.

[0098] In this embodiment, the central pillar 40' further includes a trapezoidal structure 44, for example, formed by cutting a conventional magnetic core structure and adjacent to the rear side of the central pillar 40'. Thus, at least a portion of the central pillar 40' extends from the bottom surface 12 in a direction away from the bottom component 11 to the second plane S2. The first side pillar 20 and the second side pillar 30 both extend from the bottom surface 12 in a direction away from the bottom component 11 to the first plane S1. When the third plane S3 divides the second magnetic core 10d' into a front first part and a rear second part, it also divides the first side pillar 20' into a first side pillar front side 201 and a second side pillar rear side 202, divides the second side pillar 30' into a second side pillar front side 301 and a second side pillar rear side 302, and divides the central pillar 40' into a central pillar front side 401 and a central pillar rear side 402. The volume of the front side 401 of the central column is greater than the volume of the rear side 402 of the central column, while the volume of the front side 201 of the first side column is equal to the volume of the rear side 202 of the second side column, and the volume of the front side 301 of the second side column is equal to the volume of the rear side 302 of the second side column.

[0099] Thus, the volume of the central pillars 40 and 40' located in the first part on the front side is different from the volume of the central pillars 40 and 40' located in the second part on the rear side. At least a portion of the central pillars 40 and 40' located in the part with smaller volume does not extend to the splicing surface, while the central pillars 40 and 40' located in the part with larger volume all extend to the splicing surface.

[0100] In this embodiment, the first magnetic core 10d and the second magnetic core 10d' can be spliced ​​in reverse to achieve slow saturation of the inductance in power transmission cables, which suppresses EMI interference and reduces the loss of the added matching inductance.

[0101] Figures 5A to 5C This invention discloses the structure of the magnetic core in the magnetic assembly according to the fifth embodiment of the present invention. In this embodiment, the magnetic assembly 1e and... Figures 1A to 1CThe magnetic components 1a shown are similar, and the same component designations represent the same components, structures, and functions, which will not be described again here. In this embodiment, the magnetic component 1e includes a first magnetic core 10e and a second magnetic core 10e', both of which are integrally formed EQ-type magnetic cores, and the two are spliced ​​in opposite directions to form the core body of the magnetic component 1e.

[0102] In this embodiment, a cutting surface 21 is provided on the front side of the first side post 20. The cutting surface 21 is a cutting structure formed, for example, by cutting a conventional magnetic core structure. A cutting surface 31 is provided on the front side of the second side post 30. The cutting surface 31 is a cutting structure formed, for example, by cutting a conventional magnetic core structure. Both the first side post 20 and the second side post 30 extend from the bottom surface 12 in a direction away from the bottom component 11 to the first plane S1. Thus, the volume of the first side post 20 and the second side post 30 located in the first part on the front side is smaller than the volume of the first side post 20 and the second side post 30 located in the second part on the rear side. In this embodiment, a cutting surface 21 is provided on the rear side of the first side post 20'. The cutting surface 21 is a cutting structure formed, for example, by cutting a conventional magnetic core structure. A cutting structure 31 is provided on the rear side of the second side post 30'. The cutting surface 31 is a cutting structure formed, for example, by cutting a conventional magnetic core structure. Both the first side post 20 and the second side post 30 extend from the bottom surface 12 in a direction away from the bottom component 11 to the first plane S1. Thus, the volume of the first side post 20' and the second side post 30' located in the first part on the front side is larger than the volume of the first side post 20 and the second side post 30 in the second part on the rear side. In this embodiment, the first magnetic core 10e and the second magnetic core 10e' can be applied to power transmission cables by reversing their connection to achieve slow saturation of the inductance, which suppresses EMI interference and reduces the loss of the added matching inductance.

[0103] Figures 6A to 6C This invention discloses the structure of the magnetic core in the magnetic assembly according to the sixth embodiment of the present invention. In this embodiment, the magnetic assembly 1f and... Figures 5A to 5C The magnetic components 1e shown are similar, and the same component designations represent the same components, structures, and functions, which will not be described again here. In this embodiment, the magnetic component 1f includes a first magnetic core 10f and a second magnetic core 10f', both of which are integrally formed EQ-type magnetic cores, and the two are spliced ​​in opposite directions to form the core body of the magnetic component 1f.

[0104] In this embodiment, a trapezoidal structure 22 is provided on the front side of the first side post 20. A trapezoidal structure 32 is provided on the front side of the second side post 30. A trapezoidal structure 22 is provided on the rear side of the first side post 20'. A trapezoidal structure 32 is provided on the rear side of the second side post 30'. Thus, at least a portion of the first side posts 20, 20' and the second side posts 30, 30' extend from the bottom surface 12 toward the first plane S1 in a direction away from the bottom component 11. The volume of the first side posts 20, 20' and the second side posts 30, 30' located in the first front portion is different from the volume of the first side posts 20, 20' and the second side posts 30, 30' located in the second rear portion. At least a portion of the first side posts 20, 20' or the second side posts 30, 30' located in the smaller volume portion does not extend to the splicing surface, while the first side posts 20, 20' and the second side posts 30, 30' located in the larger volume portion both extend to the splicing surface. However, the first magnetic core 10f and the second magnetic core 10f' can be spliced ​​in reverse to achieve slow saturation of the inductance in power transmission cables, which reduces the loss of the added matching inductance while suppressing EMI interference.

[0105] Figures 7A to 7C This invention discloses the structure of the magnetic core in the magnetic assembly according to the seventh embodiment of the present invention. In this embodiment, the magnetic assembly 1g and... Figures 5A to 5C The magnetic components 1e shown are similar, and the same component designations represent the same components, structures, and functions, which will not be described again here. In this embodiment, the magnetic component 1g includes a first magnetic core 10g and a second magnetic core 10g', both of which are integrally formed EQ-type magnetic cores, and the two are spliced ​​in opposite directions to form the core body of the magnetic component 1g.

[0106] In this embodiment, a cutting surface 43 is provided on the front side of the central column 40. The cutting surface 43 is a cutting structure formed, for example, by cutting a conventional magnetic core structure. A cutting surface 43 is provided on the rear side of the central column 40'. The cutting surface 43 is a cutting structure formed, for example, by cutting a conventional magnetic core structure. The central columns 40 and 40' extend from the bottom surface 12 in a direction away from the bottom component 11 to the second plane S2. The first side columns 20 and 20' and the second side columns 30 and 30' all extend from the bottom surface 12 in a direction away from the bottom component 11 to the first plane S1. The first magnetic core 10g and the second magnetic core 10g' can be applied to power transmission cables by reverse splicing to achieve slow saturation of the inductance, which suppresses EMI interference and reduces the loss of the added matching inductance.

[0107] Figures 8A to 8C This invention discloses the structure of the magnetic core in the magnetic assembly according to the eighth embodiment of the present invention. In this embodiment, the magnetic assembly 1h and Figures 5A to 5CThe magnetic components 1e shown are similar, and the same component designations represent the same components, structures, and functions, which will not be described again here. In this embodiment, the magnetic component 1h includes a first magnetic core 10h and a second magnetic core 10h', both of which are integrally formed EQ-type magnetic cores, and the two are spliced ​​in opposite directions to form the core body of the magnetic component 1h.

[0108] In this embodiment, a trapezoidal structure 44 is provided on the front side of the central column 40. At least a portion of the central column 40 extends from the bottom surface 12 in a direction away from the bottom component 11 to the second plane S2, making the volume of the front side 401 of the central column smaller than the volume of the rear side 402 of the central column. A trapezoidal structure 44 is provided on the rear side of the central column 40', and at least a portion of the central column 40' extends from the bottom surface 12 in a direction away from the bottom component 11 to the second plane S2, making the volume of the front side 401 of the central column larger than the volume of the rear side 402 of the central column. Thus, the volumes of the central columns 40 and 40' located in the first front part are different from the volumes of the central columns 40 and 40' located in the second rear part. At least a portion of the central columns 40 and 40' located in the smaller volume part does not extend to the splicing surface, while the central columns 40 and 40' located in the larger volume part all extend to the splicing surface. In this embodiment, the first magnetic core 10h and the second magnetic core 10h' can be spliced ​​in reverse to achieve slow saturation of the inductance in power transmission cables, which suppresses EMI interference and reduces the loss of the added matching inductance.

[0109] Figures 9A to 9C This invention discloses the structure of the magnetic core in the magnetic assembly according to the ninth embodiment of the present invention. In this embodiment, the magnetic assembly 1i and... Figures 1A to 1C The magnetic components 1a shown are similar, and the same component designations represent the same components, structures, and functions, which will not be described again here. In this embodiment, the magnetic component 1i includes a first magnetic core 10i and a second magnetic core 10i', both of which are integrally formed EER type magnetic cores, and the two are spliced ​​in opposite directions to form the core body of the magnetic component 1i.

[0110] In this embodiment, a cutting surface 21 is provided on the front side of the first side post 20. The cutting surface 21 is a cutting structure formed, for example, by cutting a conventional magnetic core structure. A cutting surface 31 is provided on the front side of the second side post 30. The cutting surface 31 is a cutting structure formed, for example, by cutting a conventional magnetic core structure. Both the first side post 20 and the second side post 30 extend from the bottom surface 12 in a direction away from the bottom component 11 to the first plane S1. Thus, the volume of the first side post 20 and the second side post 30 located in the first front part is smaller than the volume of the first side post 20 and the second side post 30 located in the second rear part. In this embodiment, a cutting surface 21 is provided on the rear side of the first side post 20'. The cutting surface 21 is a cutting structure formed, for example, by cutting a conventional magnetic core structure. A cutting surface 31 is provided on the rear side of the second side post 30'. The cutting surface 31 is a cutting structure formed, for example, by cutting a conventional magnetic core structure. Both the first side post 20' and the second side post 30' extend from the bottom surface 12 in a direction away from the bottom component 11 to the first plane S1. Thus, the volume of the first side post 20' and the second side post 30' located in the first part on the front side is larger than the volume of the first side post 20 and the second side post 30 in the second part on the rear side. In this embodiment, the first magnetic core 10i and the second magnetic core 10i' can be applied to power transmission cables by reverse splicing to achieve slow saturation of the inductance, which reduces the loss of the added matching inductance while suppressing EMI interference.

[0111] Figures 10A to 10C This invention discloses the structure of the magnetic core in the magnetic assembly according to the tenth embodiment of the present invention. In this embodiment, the magnetic assembly 1j and... Figures 9A to 9C The magnetic components 1i shown are similar, and the same component designations represent the same components, structures, and functions, which will not be described again here. In this embodiment, the magnetic component 1j includes a first magnetic core 10j and a second magnetic core 10j', both of which are integrally formed EER type magnetic cores, and the two are spliced ​​in opposite directions to form the core body of the magnetic component 1j.

[0112] In this embodiment, a trapezoidal structure 22 is provided on the front side of the first side post 20. A trapezoidal structure 32 is provided on the front side of the second side post 30. A trapezoidal structure 22 is provided on the rear side of the first side post 20'. A trapezoidal structure 32 is provided on the rear side of the second side post 30'. Thus, at least a portion of the first side posts 20, 20' and the second side posts 30, 30' extend from the bottom surface 12 toward the first plane S1 in a direction away from the bottom component 11. The volume of the first side posts 20, 20' and the second side posts 30, 30' located in the first front portion is different from the volume of the first side posts 20, 20' and the second side posts 30, 30' located in the second rear portion. At least a portion of the first side posts 20, 20' or the second side posts 30, 30' located in the smaller volume portion does not extend to the splicing surface, while the first side posts 20, 20' and the second side posts 30, 30' located in the larger volume portion both extend to the splicing surface. However, the first magnetic core 10j and the second magnetic core 10j' can be spliced ​​in reverse to achieve slow saturation of the inductance in power transmission cables, which reduces the loss of the added matching inductance while suppressing EMI interference.

[0113] Figures 11A to 11C This invention discloses the structure of the magnetic core in the magnetic assembly according to the eleventh embodiment of the present invention. In this embodiment, the magnetic assembly 1k and... Figures 9A to 9C The magnetic components 1i shown are similar, and the same component designations represent the same components, structures, and functions, which will not be described again here. In this embodiment, the magnetic component 1k includes a first magnetic core 10k and a second magnetic core 10k', both of which are integrally formed EER type magnetic cores, and the two are spliced ​​in opposite directions to form the core body of the magnetic component 1k.

[0114] In this embodiment, a cutting surface 43 is provided on the front side of the central column 40. The cutting surface 43 is a cutting structure formed, for example, by cutting a conventional magnetic core structure. A cutting surface 43 is provided on the rear side of the central column 40'. The cutting surface 43 is a cutting structure formed, for example, by cutting a conventional magnetic core structure. The central columns 40 and 40' extend from the bottom surface 12 in a direction away from the bottom component 11 to the second plane S2. The first side columns 20 and 20' and the second side columns 30 and 30' all extend from the bottom surface 12 in a direction away from the bottom component 11 to the first plane S1. The first magnetic core 10k and the second magnetic core 10k' can be applied to power transmission cables by reverse splicing to achieve slow saturation of the inductance, which reduces the loss of the added matching inductance while suppressing EMI interference.

[0115] Figures 12A to 12C This invention discloses the structure of the magnetic core in the magnetic assembly according to the twelfth embodiment of the present invention. In this embodiment, the magnetic assembly 11 and... Figures 9A to 9CThe magnetic components 1i shown are similar, and the same component designations represent the same components, structures, and functions, which will not be described again here. In this embodiment, the magnetic component 1l includes a first magnetic core 10l and a second magnetic core 10l', both of which are integrally formed EER type magnetic cores, and the two are spliced ​​in opposite directions to form the core body of the magnetic component 1l.

[0116] In this embodiment, a trapezoidal structure 44 is provided on the front side of the central column 40. At least a portion of the central column 40 extends from the bottom surface 12 in a direction away from the bottom component 11 to the second plane S2, making the volume of the front side 401 of the central column smaller than the volume of the rear side 402 of the central column. A trapezoidal structure 44 is provided on the rear side of the central column 40', and at least a portion of the central column 40 extends from the bottom surface 12 in a direction away from the bottom component 11 to the second plane S2, making the volume of the front side 401 of the central column larger than the volume of the rear side 402 of the central column. Thus, the volumes of the central columns 40 and 40' located in the first front portion are different from the volumes of the central columns 40 and 40' located in the second rear portion. At least a portion of the central columns 40 and 40' located in the smaller volume portion does not extend to the splicing surface, while the central columns 40 and 40' located in the larger volume portion all extend to the splicing surface. In this embodiment, the first magnetic core 10l and the second magnetic core 10l' can be spliced ​​in reverse to achieve slow saturation of the inductance in power transmission cables, which suppresses EMI interference and reduces the loss of the added matching inductance.

[0117] Figures 13A to 13C This invention discloses the structure of the magnetic core in the magnetic assembly according to the thirteenth embodiment of the present invention. In this embodiment, the magnetic assembly 1m and Figures 1A to 1C The magnetic components 1a shown are similar, and the same component designations represent the same components, structures, and functions, which will not be described again here. In this embodiment, the magnetic component 1m includes a first magnetic core 10m and a second magnetic core 10m', both of which are integrally formed E-type magnetic cores, and are spliced ​​in opposite directions to form the core body of the magnetic component 1m. The central pillars 40 and 40' are square pillars, and the width of the central pillars 40 and 40' is not greater than the width of the bottom component 11.

[0118] In this embodiment, a cutting surface 21 is provided on the front side of the first side post 20. The cutting surface 21 is a cutting structure formed, for example, by cutting a conventional magnetic core structure. A cutting surface 31 is provided on the front side of the second side post 30. The cutting surface 31 is a cutting structure formed, for example, by cutting a conventional magnetic core structure. Thus, both the first side post 20 and the second side post 30 extend from the bottom surface 12 toward the first plane S1 in a direction away from the bottom component 11. The volume of the first side post 20 and the second side post 30 located in the first front part is smaller than the volume of the first side post 20 and the second side post 30 located in the second rear part. In this embodiment, a cutting surface 21 is provided on the rear side of the first side post 20'. The cutting surface 21 is a cutting structure formed, for example, by cutting a conventional magnetic core structure. A cutting surface 31 is provided on the rear side of the second side post 30'. The cutting surface 31 is a cutting structure formed, for example, by cutting a conventional magnetic core structure. Thus, both the first side post 20' and the second side post 30' extend from the bottom surface 12 toward the first plane S1 in a direction away from the bottom component 11. The volume of the first side post 20' and the second side post 30' located in the first part on the front side is larger than the volume of the first side post 20 and the second side post 30 in the second part on the rear side. In this embodiment, the first magnetic core 10m and the second magnetic core 10m' can be applied to power transmission cables by reversing their splicing to achieve slow saturation of the inductance, which suppresses EMI interference and reduces the loss of the added matching inductance.

[0119] Figures 14A to 14C This invention discloses the structure of the magnetic core in the magnetic assembly according to the fourteenth embodiment of the present invention. In this embodiment, the magnetic assembly 1n and... Figures 13A to 13C The magnetic components 1m shown are similar, and the same component designations represent the same components, structures, and functions, which will not be described again here. In this embodiment, the magnetic component 1n includes a first magnetic core 10n and a second magnetic core 10n', both of which are integrally formed E-type magnetic cores, and the two are spliced ​​in opposite directions to form the core body of the magnetic component 1n.

[0120] In this embodiment, a trapezoidal structure 22 is provided on the front side of the first side post 20. A trapezoidal structure 32 is provided on the front side of the second side post 30. A trapezoidal structure 22 is provided on the rear side of the first side post 20'. A trapezoidal structure 32 is provided on the rear side of the second side post 30'. Thus, at least a portion of the first side posts 20, 20' and the second side posts 30, 30' extend from the bottom surface 12 toward the first plane S1 in a direction away from the bottom component 11. The volume of the first side posts 20, 20' and the second side posts 30, 30' located in the first front portion is different from the volume of the first side posts 20, 20' and the second side posts 30, 30' located in the second rear portion. At least a portion of the first side posts 20, 20' or the second side posts 30, 30' located in the smaller volume portion does not extend to the splicing surface, while the first side posts 20, 20' and the second side posts 30, 30' located in the larger volume portion both extend to the splicing surface. However, the first magnetic core 10n and the second magnetic core 10n' can be spliced ​​in reverse to achieve slow saturation of the inductance in power transmission cables, which reduces the loss of the added matching inductance while suppressing EMI interference.

[0121] Figures 15A to 15C This invention discloses the structure of the magnetic core in the magnetic assembly according to the fifteenth embodiment of the present invention. In this embodiment, the magnetic assembly 1o and... Figures 13A to 13C The magnetic components 1m shown are similar, and the same component designations represent the same components, structures, and functions, which will not be described again here. In this embodiment, the magnetic component 1o includes a first magnetic core 10o and a second magnetic core 10o', both of which are integrally formed E-type magnetic cores, and the two are spliced ​​in opposite directions to form the core body of the magnetic component 1o.

[0122] In this embodiment, a cutting surface 43 is provided on the front side of the central column 40. The cutting surface 43 is a cutting structure formed, for example, by cutting a conventional magnetic core structure. A cutting surface 43 is provided on the rear side of the central column 40'. The cutting surface 43 is a cutting structure formed, for example, by cutting a conventional magnetic core structure. The central columns 40 and 40' extend from the bottom surface 12 in a direction away from the bottom component 11 to the second plane S2. The first side columns 20 and 20' and the second side columns 30 and 30' all extend from the bottom surface 12 in a direction away from the bottom component 11 to the first plane S1. The first magnetic core 10o and the second magnetic core 10o' can be applied to power transmission cables by reverse splicing to achieve slow saturation of the inductance, which suppresses EMI interference and reduces the loss of the added matching inductance.

[0123] Figures 16A to 16C This invention discloses the structure of the magnetic core in the magnetic assembly according to the sixteenth embodiment of the present invention. In this embodiment, the magnetic assembly 1p and... Figures 13A to 13CThe magnetic components 1m shown are similar, and the same component designations represent the same components, structures, and functions, which will not be described again here. In this embodiment, the magnetic component 1p includes a first magnetic core 10p and a second magnetic core 10p', both of which are integrally formed E-type magnetic cores, and the two are spliced ​​in opposite directions to form the core body of the magnetic component 1p.

[0124] In this embodiment, a trapezoidal structure 44 is provided on the front side of the central column 40. At least a portion of the central column 40 extends from the bottom surface 12 in a direction away from the bottom component 11 to the second plane S2, making the volume of the front side 401 of the central column smaller than the volume of the rear side 402 of the central column. A trapezoidal structure 44 is provided on the rear side of the central column 40', and at least a portion of the central column 40' extends from the bottom surface 12 in a direction away from the bottom component 11 to the second plane S2, making the volume of the front side 401 of the central column larger than the volume of the rear side 402 of the central column. Thus, the volumes of the central columns 40 and 40' located in the first front part are different from the volumes of the central columns 40 and 40' located in the second rear part. At least a portion of the central columns 40 and 40' located in the smaller volume part does not extend to the splicing surface, while the central columns 40 and 40' located in the larger volume part all extend to the splicing surface. In this embodiment, the first magnetic core 10p and the second magnetic core 10p' can be spliced ​​in reverse to achieve slow saturation of the inductance in power transmission cables, which suppresses EMI interference and reduces the loss of the added matching inductance.

[0125] In summary, this invention provides a magnetic component suitable for power transmission cables, which combines inductance saturation and impedance matching to effectively suppress current oscillations. The magnetic component is fitted between the input end and the transmission line of the power transmission cable. When the main body of the magnetic component consists of two magnetic cores connected together, the side posts and center posts of the dissimilar cores can respectively form side post gaps and center post gaps. By adjusting the side post gaps and center post gaps, the saturation state of the magnetic component during oscillating current changes can be controlled, effectively suppressing EMI interference while reducing the losses generated by the magnetic component.

[0126] It should be noted that the above are merely preferred embodiments for illustrating the present invention, and the present invention is not limited to the described embodiments. The scope of the present invention is determined by the appended claims. Furthermore, the present invention may be modified in various ways by those skilled in the art, without departing from the protection sought by the appended claims.

Claims

1. A magnetic component suitable for a power transmission cable, characterized in that, The magnetic component is sleeved on the power transmission cable, and the magnetic component includes at least a first magnetic core, the first magnetic core comprising: A bottom component includes a bottom surface, wherein the bottom surface extends along a first direction and a second direction perpendicular to each other, and is symmetrical in both the first and second directions; A first side post and a second side post are disposed on the bottom surface and arranged along the second direction, and at least a portion of them extend from the bottom surface in a direction away from the bottom assembly to a first plane, wherein the first side post and the second side post have the same side post width in the first direction; and A central column is disposed on the bottom surface and located between the first side column and the second side column, and at least a portion of it extends from the bottom surface in a direction away from the bottom component to a second plane, wherein the central column includes a first surface and a second surface opposite to each other, the second surface being connected to the bottom surface, and the central column having a symmetrical structure in the first direction; The first magnetic core can be divided into a first part and a second part by a third plane, the third plane being perpendicular to the first plane and passing through the centerline of the bottom surface along the second direction, wherein the volume of the first side post and the second side post located in the first part is different from the volume of the first side post and the second side post located in the second part, or the volume of the central post located in the first part is different from the volume of the central post located in the second part.

2. The magnetic component as described in claim 1, characterized in that, The magnetic component also includes a second magnetic core, which has the same structure as the first magnetic core. The first plane or the second plane is a splicing surface, and the second magnetic core and the first magnetic core are spliced ​​together through the splicing surface to form the magnetic core body of the magnetic component.

3. The magnetic component as described in claim 2, characterized in that, The first magnetic core and the second magnetic core have the same structure and are spliced ​​in opposite directions to form the magnetic core body of the magnetic assembly. That is, the magnetic core body of the magnetic assembly can be divided into a first side magnetic core body part and a second side magnetic core body part by the third plane, and the first side magnetic core body part and the second side magnetic core body part have the same volume.

4. The magnetic component as described in claim 2 or 3, characterized in that, The first magnetic core and / or the second magnetic core are integrally formed.

5. The magnetic component as claimed in claim 1, characterized in that, The volume of the first side post and the second side post located in the first part is different from the volume of the first side post and the second side post located in the second part. The two magnetic cores of the magnetic component have corresponding windings, and one end of the winding extends out of the magnetic core along the second direction from the smaller part of the first part and the second part, while the other end extends out of the magnetic core from the first direction.

6. The magnetic component as claimed in claim 1, characterized in that, The first side post and the second side post have the same side post thickness in the second direction.

7. The magnetic component as claimed in claim 2, characterized in that, The volume of the first side post and the second side post located in the first part is different from the volume of the first side post and the second side post located in the second part. At least a portion of the first side post or the second side post located in the part with smaller volume does not extend to the splicing surface, while the first side post and the second side post located in the part with larger volume both extend to the splicing surface.

8. The magnetic component as claimed in claim 7, characterized in that, The volume of the central column in the first part is different from that of the central column in the second part. At least a portion of the central column in the part with a smaller volume does not extend to the splicing surface, while the central columns in the part with a larger volume all extend to the splicing surface.

9. The magnetic component as claimed in claim 1, characterized in that, The width of the central column is no greater than the width of the bottom component.

10. The magnetic component as claimed in claim 2, characterized in that, The cross-sectional shape of the central column can be square, circular, elliptical, or racetrack-shaped.

Images