Three-phase four-column magnetic integrated inductor

Abstract

The invention discloses a three-phase four-column magnetic integrated inductor, which comprises a base, an iron core, a first coil group, a second coil group and a third coil group, and is characterized in that the first coil group, the second coil group and the third coil group are respectively wound on the side surface of the iron core; the iron core comprises a first winding part, a second winding part and a third winding part; the first coil group comprises a plurality of first coils, the second coil group comprises a plurality of second coils, and the third coil group comprises a plurality of third coils; the plurality of first coils are respectively wound on the first winding parts; the plurality of second coils are respectively wound on the second winding parts; and the plurality of third coils are respectively wound on the third winding parts. According to the three-phase four-column magnetic integrated inductor, each phase is subjected to magnetic circuit integration through the coils, and magnetic fields generated by the coils are superposed through the iron core, so that the inductive reactance of each phase of the three-phase four-column magnetic integrated inductor is effectively improved, and the overall performance of the three-phase four-column magnetic integrated inductor is effectively enhanced.

Description

Technical Field

[0001] The invention relates to the technical field of three-phase four-column inductors, and in particular to a three-phase four-column magnetic integrated inductor. Background Art

[0002] The three-phase four-pillar inductor is a special type of inductor device, which is mainly used in three-phase circuits. It usually consists of three cores and three coils, each coil is wound on a core. This structure allows the three-phase four-pillar inductor to handle three-phase currents simultaneously in the circuit, thereby realizing the inductance regulation and control of the three-phase circuit. The main functions of the three-phase four-pillar inductor include: Balancing current: It can balance the current between phases in the three-phase circuit, ensure that the current in the circuit is evenly distributed, and avoid problems caused by unbalanced loads. Suppress harmonics: The three-phase four-pillar inductor can reduce the harmonics in the circuit and improve the power factor of the circuit. Improve the stability of the circuit: By introducing inductance, energy can be stored in the circuit, thereby improving the stability and anti-interference ability of the circuit.

[0003] The structure of existing three-phase four-pillar inductors usually includes the following main parts: magnetic core, coil, insulation material, support structure and connection terminals. Among them, the three-phase four-pillar inductor contains three coils, each coil corresponds to a phase in the circuit, and these coils are usually wound by insulated wires to generate magnetic fields and induced currents. However, the existing three-phase four-pillar inductors of this type only have one coil per phase, which limits the application range and inductance performance of the three-phase four-pillar inductors. Summary of the invention

[0004] Based on this, it is necessary to provide a three-phase four-pillar magnetic integrated inductor to address the technical problem of insufficient inductance performance of existing three-phase four-pillar inductors.

[0005] A three-phase four-column magnetic integrated inductor comprises a base, an iron core, a first coil group, a second coil group and a third coil group, wherein the iron core, the first coil group, the second coil group and the third coil group are all mounted on the top side surface of the base, wherein the first coil group, the second coil group and the third coil group are respectively wound around the side surface of the iron core, thereby forming a three-phase four-column inductor.

[0006] The iron core comprises a first winding portion, a second winding portion and a third winding portion, which are arranged in sequence along the length direction of the iron core.

[0007] The first coil group includes a plurality of first coils, the second coil group includes a plurality of second coils, and the third coil group includes a plurality of third coils; wherein, the plurality of first coils are respectively wound on the first winding portion, so that the plurality of first coils are integrated in the magnetic circuit through the first winding portion; the plurality of second coils are respectively wound on the second winding portion, so that the plurality of second coils are integrated in the magnetic circuit through the second winding portion; the plurality of third coils are respectively wound on the third winding portion, so that the plurality of third coils are integrated in the magnetic circuit through the third winding portion.

[0008] In one embodiment, the above-mentioned iron core also includes a first connecting portion, a second connecting portion, a third connecting portion and a fourth connecting portion, and the first connecting portion and the fourth connecting portion are respectively arranged at two ends of the iron core, that is, the first connecting portion and the fourth connecting portion are respectively arranged at the outer ends of the first winding portion and the third winding portion on opposite sides; the second connecting portion is arranged between the first winding portion and the second winding portion, and the third connecting portion is arranged between the second winding portion and the third winding portion, so as to connect the first winding portion, the second winding portion and the third winding portion into one.

[0009] In one embodiment, the above-mentioned first winding part includes two first winding poles, and the two first winding poles are respectively arranged between the first connecting part and the second connecting part, and the two first winding poles are arranged in parallel in pairs; the first connecting part, a first winding pole, the second connecting part and another first winding pole are connected end to end in sequence.

[0010] In one embodiment, the first coils are respectively and correspondingly wound on the side surfaces of the two first winding poles, so that the first coils are integrated into a magnetic circuit through the two first winding poles, the first connecting portion and the second connecting portion.

[0011] In one embodiment, the second winding portion includes two second winding poles, which are respectively arranged between the second connecting portion and the third connecting portion, and the two second winding poles are arranged in parallel in pairs; the second connecting portion, a second winding pole, the third connecting portion and another second winding pole are connected end to end in sequence.

[0012] In one embodiment, the plurality of second coils are respectively and correspondingly wound on the side surfaces of the two second winding poles, so that the plurality of second coils are magnetically integrated through the two second winding poles, the second connecting portion and the third connecting portion.

[0013] In one embodiment, the third winding portion includes two third winding poles, which are respectively arranged between the third connecting portion and the fourth connecting portion, and the two third winding poles are arranged in parallel in pairs; the third connecting portion, a third winding pole, the fourth connecting portion and another third winding pole are connected end to end in sequence.

[0014] In one embodiment, the third coils are respectively and correspondingly wound on the side surfaces of the two third winding poles, so that the third coils are integrated into a magnetic circuit through the two third winding poles, the third connecting portion and the fourth connecting portion.

[0015] In one embodiment, the first coil assembly includes two first coils, and the two first coils are respectively wound around side surfaces of two first winding posts.

[0016] In one embodiment, the second coil assembly includes two second coils, and the two second coils are respectively wound around the side surfaces of the two second winding posts.

[0017] In one embodiment, the third coil assembly includes two third coils, and the two third coils are respectively wound around the side surfaces of the two third winding posts.

[0018] In one embodiment, the base includes a plurality of wire outlet holes, which are respectively disposed on the bottom side of each first coil, each second coil and each third coil, and each wire outlet hole penetrates and connects two side surfaces of the base.

[0019] In one embodiment, the two lead ends of each first coil, the two lead ends of each second coil, and the two lead ends of each third coil extend from the top surface of the base to the bottom surface of the base through corresponding wire outlet holes.

[0020] The three-phase four-column magnetic integrated inductor of the present invention respectively uses the first winding part, the second winding part and the third winding part arranged in a straight line as the three-phase winding body, so as to be used for the corresponding support of the first coil group, the second coil group and the third coil group, wherein the first coil group, the second coil group and the third coil group are each provided with a plurality of coils, that is, each phase thereof is magnetically integrated through a plurality of coils, and the magnetic fields generated by the plurality of coils are superimposed through the iron core, so that the magnetic flux of each coil is superimposed, thereby greatly improving the equivalent magnetic permeability of each coil, and promoting the effective improvement of the inductive reactance of each phase of the three-phase four-column magnetic integrated inductor, and effectively enhancing the overall performance of the three-phase four-column magnetic integrated inductor of the present invention. In addition, the first winding part, the second winding part and the third winding part arranged in a straight line are more conducive to the coordinated installation of the first coil group, the second coil group and the third coil group, greatly reducing the difficulty of assembling the three-phase four-column magnetic integrated inductor, and improving its heat dissipation performance during actual operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the structure of a three-phase four-column magnetic integrated inductor in one embodiment; Figure 2 Schematic diagram of the exploded structure of a three-phase four-column magnetic integrated inductor in one embodiment. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0023] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0024] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0025] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0027] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0028] See also Figure 1 to Figure 2 The present invention discloses a three-phase four-pillar magnetic integrated inductor, which includes a base 1, an iron core 2, a first coil group 3, a second coil group 4 and a third coil group 5. The iron core 2, the first coil group 3, the second coil group 4 and the third coil group 5 are all installed on the top side surface of the base 1, wherein the first coil group 3, the second coil group 4 and the third coil group 5 are respectively wound around the side surface of the iron core 2, thereby forming a three-phase four-pillar inductor.

[0029] Specifically, the iron core 2 includes a first winding portion 21, a second winding portion 22 and a third winding portion 23, and the first winding portion 21, the second winding portion 22 and the third winding portion 23 are arranged in sequence along the length direction of the iron core 2; specifically, the first coil group 3 includes a plurality of first coils 31, the second coil group 4 includes a plurality of second coils 41, and the third coil group 5 includes a plurality of third coils 51; wherein, the plurality of first coils 31 are respectively wound on the first winding portion 21, so that the plurality of first coils 31 are integrated in the magnetic circuit through the first winding portion 21; the plurality of second coils 41 are respectively wound on the second winding portion 22, so that the plurality of second coils 41 are integrated in the magnetic circuit through the second winding portion 22; the plurality of third coils 51 are respectively wound on the third winding portion 23, so that the plurality of third coils 51 are integrated in the magnetic circuit through the third winding portion 23. Compared with the traditional three-phase four-pillar inductor, the three-phase four-pillar magnetic integrated inductor of the present invention respectively uses the first winding part 21, the second winding part 22 and the third winding part 23 arranged in a straight line as the three-phase winding body, so as to support the corresponding winding of the first coil group 3, the second coil group 4 and the third coil group 5, wherein the first coil group 3, the second coil group 4 and the third coil group 5 are all provided with multiple coils, that is, each phase is magnetically integrated through a plurality of coils, and the magnetic fields generated by the plurality of coils are superimposed through the iron core 2, so that the magnetic flux of each coil is superimposed, thereby greatly improving the equivalent magnetic permeability of each coil, and promoting the effective improvement of the inductive reactance of each phase of the three-phase four-pillar magnetic integrated inductor, and effectively enhancing the overall performance of the three-phase four-pillar magnetic integrated inductor of the present invention. In addition, the first winding portion 21, the second winding portion 22 and the third winding portion 23 arranged in a straight line are more conducive to the coordinated installation of the first coil group 3, the second coil group 4 and the third coil group 5, greatly reducing the assembly difficulty of the three-phase four-column magnetic integrated inductor, while improving its heat dissipation performance during actual operation.

[0030] Furthermore, the core 2 also includes a first connection portion 24, a second connection portion 25, a third connection portion 26 and a fourth connection portion 27. The first connection portion 24 and the fourth connection portion 27 are respectively arranged at both ends of the core 2, that is, the first connection portion 24 and the fourth connection portion 27 are respectively arranged at the outer ends of the first winding portion 21 and the third winding portion 23 on opposite sides; the second connection portion 25 is arranged between the first winding portion 21 and the second winding portion 22, and the third connection portion 26 is arranged between the second winding portion 22 and the third winding portion 23, so as to connect the first winding portion 21, the second winding portion 22 and the third winding portion 23 into one. In practical applications, the second connection part 25 serves as a common magnetic core column between the first coil group 3 and the second coil group 4, thereby respectively cooperating with the first connection part 24 and the third connection part 26 to respectively form a complete magnetic circuit for the first winding part 21 and the second winding part 22; the third connection part 26 serves as a common magnetic core column between the second coil group 4 and the third coil group 5, thereby respectively cooperating with the second connection part 25 and the fourth connection part 27 to respectively form a complete magnetic circuit for the second winding part 22 and the third winding part 23, thereby equivalently forming a three-phase four-column magnetic integrated inductor. The core 2 of the three-phase four-column magnetic integrated inductor of the present invention realizes the magnetic circuit integration between the three phases of the inductor through the second connection part 25 and the third connection part 26, which is conducive to the linear arrangement between the first winding part 21, the second winding part 22 and the third winding part 23, while ensuring the heat dissipation performance of the three-phase four-column magnetic integrated inductor.

[0031] Furthermore, the first winding part 21 includes two first winding posts 211, which are respectively arranged between the first connecting part 24 and the second connecting part 25, and the two first winding posts 211 are arranged in parallel with each other; the first connecting part 24, a first winding post 211, the second connecting part 25 and another first winding post 211 are connected end to end in sequence to form a frame structure. Specifically, a plurality of first coils 31 are respectively wound on the side surfaces of the two first winding posts 211, so that the plurality of first coils 31 are respectively integrated in the magnetic circuit through the two first winding posts 211, the first connecting part 24 and the second connecting part 25, thereby strengthening the inductive reactance strength of the first coil group 3.

[0032] Furthermore, the second winding part 22 includes two second winding posts 221, which are respectively arranged between the second connecting part 25 and the third connecting part 26, and the two second winding posts 221 are arranged in parallel; the second connecting part 25, a second winding post 221, the third connecting part 26 and another second winding post 221 are connected end to end in sequence to form a frame structure. Specifically, a plurality of second coils 41 are respectively wound on the side surfaces of the two second winding posts 221, so that the plurality of second coils 41 are respectively integrated in the magnetic circuit through the two second winding posts 221, the second connecting part 25 and the third connecting part 26, thereby strengthening the inductive reactance strength of the second coil group 4.

[0033] Furthermore, the third winding part 23 includes two third winding posts 231, which are respectively arranged between the third connecting part 26 and the fourth connecting part 27, and the two third winding posts 231 are arranged in parallel; the third connecting part 26, a third winding post 231, the fourth connecting part 27 and another third winding post 231 are connected end to end in sequence to form a frame structure. Specifically, a plurality of third coils 51 are respectively wound on the side surfaces of the two third winding posts 231, so that the plurality of third coils 51 are respectively integrated in the magnetic circuit through the two third winding posts 231, the third connecting part 26 and the fourth connecting part 27, so as to strengthen the inductive reactance strength of the third coil group 5.

[0034] Furthermore, in this embodiment, the first coil assembly 3 includes two first coils 31 , and the two first coils 31 are respectively and correspondingly wound around the side surfaces of the two first winding posts 211 .

[0035] Furthermore, in this embodiment, the second coil assembly 4 includes two second coils 41 , and the two second coils 41 are respectively and correspondingly wound around the side surfaces of the two second winding posts 221 .

[0036] Furthermore, in this embodiment, the third coil assembly 5 includes two third coils 51 , and the two third coils 51 are respectively and correspondingly wound around the side surfaces of the two third winding posts 231 .

[0037] Further, the base 1 includes a plurality of outlet holes 11, which are respectively arranged on the bottom side of each first coil 31, each second coil 41 and each third coil 51, and each outlet hole 11 penetrates and connects the two side surfaces of the base 1. Specifically, the two lead-out ends of each first coil 31, the two lead-out ends of each second coil 41 and the two lead-out ends of each third coil 51 extend from the top side surface of the base 1 to the bottom side surface of the base 1 through the corresponding outlet holes 11, so as to facilitate the connection and conduction between the three-phase four-column magnetic integrated inductor and the preset mounting surface.

[0038] In summary, the three-phase four-column magnetic integrated inductor disclosed in the present invention uses the first winding part, the second winding part and the third winding part arranged in a straight line as the three-phase winding body, so as to be used for the corresponding winding of the first coil group, the second coil group and the third coil group. The first coil group, the second coil group and the third coil group are each provided with a plurality of coils, that is, each phase is magnetically integrated through a plurality of coils, and the magnetic fields generated by the plurality of coils are superimposed through the iron core, so that the magnetic flux of each coil is superimposed, thereby greatly improving the equivalent magnetic permeability of each coil, and promoting the effective improvement of the inductive reactance of each phase of the three-phase four-column magnetic integrated inductor, and effectively enhancing the overall performance of the three-phase four-column magnetic integrated inductor of the present invention. In addition, the first winding part, the second winding part and the third winding part arranged in a straight line are more conducive to the coordinated installation of the first coil group, the second coil group and the third coil group, greatly reducing the difficulty of assembling the three-phase four-column magnetic integrated inductor, and improving its heat dissipation performance during actual operation.

[0039] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0040] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A three-phase four-column magnetic integrated inductor, characterized in that: include: A base, an iron core, a first coil group, a second coil group, and a third coil group, wherein the iron core, the first coil group, the second coil group, and the third coil group are all mounted on the top surface of the base, and the first coil group, the second coil group, and the third coil group are respectively wound around the side surface of the iron core; The iron core comprises a first winding portion, a second winding portion and a third winding portion, wherein the first winding portion, the second winding portion and the third winding portion are arranged in sequence along the length direction of the iron core; The first coil group includes a plurality of first coils, the second coil group includes a plurality of second coils, and the third coil group includes a plurality of third coils; wherein, the plurality of first coils are respectively wound on the first winding portion, so that the plurality of first coils are integrated in the magnetic circuit through the first winding portion; the plurality of second coils are respectively wound on the second winding portion, so that the plurality of second coils are integrated in the magnetic circuit through the second winding portion; and the plurality of third coils are respectively wound on the third winding portion, so that the plurality of third coils are integrated in the magnetic circuit through the third winding portion.

2. The three-phase four-column magnetic integrated inductor according to claim 1, characterized in that: The iron core also includes a first connecting portion, a second connecting portion, a third connecting portion and a fourth connecting portion, wherein the first connecting portion and the fourth connecting portion are respectively arranged at two ends of the iron core; the second connecting portion is arranged between the first winding portion and the second winding portion, and the third connecting portion is arranged between the second winding portion and the third winding portion.

3. The three-phase four-column magnetic integrated inductor according to claim 2, characterized in that: The first winding part includes two first winding poles, which are respectively arranged between the first connecting part and the second connecting part, and the two first winding poles are arranged in parallel in pairs; the first connecting part, one first winding pole, the second connecting part and another first winding pole are connected end to end in sequence.

4. The three-phase four-column magnetic integrated inductor according to claim 3, characterized in that: A plurality of the first coils are respectively and correspondingly wound on the side surfaces of the two first winding posts.

5. The three-phase four-column magnetic integrated inductor according to claim 4, characterized in that: The second winding part includes two second winding poles, and the two second winding poles are respectively arranged between the second connecting part and the third connecting part, and the two second winding poles are arranged in parallel in pairs; the second connecting part, one second winding pole, the third connecting part and another second winding pole are connected end to end in sequence.

6. The three-phase four-column magnetic integrated inductor according to claim 5, characterized in that: A plurality of the second coils are respectively and correspondingly wound on the side surfaces of the two second winding posts.

7. The three-phase four-column magnetic integrated inductor according to claim 6, characterized in that: The third winding part includes two third winding poles, which are respectively arranged between the third connecting part and the fourth connecting part, and the two third winding poles are arranged in parallel in pairs; the third connecting part, one third winding pole, the fourth connecting part and another third winding pole are connected end to end in sequence.

8. The three-phase four-column magnetic integrated inductor according to claim 7, characterized in that: A plurality of the third coils are respectively and correspondingly wound on the side surfaces of the two third winding poles.

9. The three-phase four-column magnetic integrated inductor according to claim 8, characterized in that: The base includes a plurality of wire outlet holes, which are respectively and correspondingly arranged at the bottom sides of each of the first coils, each of the second coils and each of the third coils, and each of the wire outlet holes penetrates and connects two side surfaces of the base.

10. The three-phase four-column magnetic integrated inductor according to claim 9, characterized in that: The two lead-out ends of each of the first coils, the two lead-out ends of each of the second coils, and the two lead-out ends of each of the third coils extend from the top surface of the base to the bottom surface of the base through the corresponding wire outlet holes.

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