Anti-coupling integrated inductor and multi-phase interleaving parallel converter

Abstract

The anti-coupling integrated inductor comprises a support, a plurality of inductance coils and a decoupling piece, the support is provided with at least two wrapping posts, the at least two wrapping posts are arranged at intervals in the first direction, the plurality of inductance coils are arranged on each wrapping post at intervals, and the decoupling piece is arranged on the support. The plurality of inductance coils on each winding post are arranged in the same phase, the inductance coils on the adjacent winding posts are arranged in different phases, any two adjacent inductance coils in different phases are mutually reversely coupled, and the decoupling piece is arranged on the winding post and is positioned between any two adjacent inductance coils arranged in the same phase; the decoupling piece is used for adjusting a coupling coefficient between two adjacent inductance coils; the multi-phase interleaving converter comprises an anti-coupling integrated inductor. The size of the inductor of the multiphase interleaving parallel converter can be reduced, the space occupied by the inductor of the multiphase interleaving parallel converter is reduced, meanwhile, the loss of related parts in the multiphase interleaving parallel converter caused by current ripples is reduced, and the service life of the multiphase interleaving parallel converter is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of power electronics, in particular to an anti-coupling integrated inductor and a multi-phase interleaved parallel converter. Background Art

[0002] Before distributed energy storage and renewable energy are connected to the grid, they usually need to be processed by a boost converter. Among most boost converter topologies, the multi-phase interleaved parallel structure has attracted much attention due to its advantages such as high power density, high efficiency and small input current ripple.

[0003] The multi-phase interleaved parallel converter has a multi-phase parallel circuit, and each phase circuit is a full-bridge circuit. In a full-bridge circuit, common-mode noise often exists at its input. Common-mode noise is also called asymmetric noise or line-to-ground noise. This noise exists at the input end (transmission end and neutral line) of electrical equipment using AC power, and the phases of the two to the ground remain in phase.

[0004] In order to suppress common-mode noise, the prior art usually connects at least two independent anti-coupled integrated inductors with the same parameters to each phase circuit. However, multiple anti-coupled integrated inductors occupy a large space, which is often not conducive to the overall layout of the multi-phase interleaved parallel converter and the improvement of power density. Utility Model Content

[0005] The main purpose of the utility model is to propose an anti-coupled integrated inductor, which aims to reduce the volume of the inductor of a multi-phase interleaved parallel converter and reduce the space it occupies in the whole machine, while reducing the loss of current ripple to related components in the multi-phase interleaved parallel converter and extending its service life.

[0006] To achieve the above-mentioned purpose, the anti-coupling integrated inductor proposed by the utility model comprises:

[0007] The bracket has at least two winding posts, and the at least two winding posts are arranged at intervals along a first direction;

[0008] A plurality of inductance coils, each of the winding posts is provided with a plurality of the inductance coils at intervals, the plurality of the inductance coils on each winding post are provided in the same phase, the inductance coils on adjacent winding posts are provided in different phases, and any two adjacent inductance coils in different phases are mutually anti-coupled; and

[0009] The decoupling component is arranged on the winding column and located between any two adjacent inductance coils arranged in the same phase. The decoupling component is used to adjust the coupling coefficient between the two adjacent inductance coils.

[0010] Optionally, a plurality of decoupling components are provided, and one or more decoupling components are provided on each winding pole.

[0011] Optionally, each of the winding poles is provided with a plurality of the decoupling members spaced apart along its length direction;

[0012] And / or, the number of the decoupling components on each of the winding poles is equal, and the decoupling components on adjacent winding poles are arranged and connected in a one-to-one correspondence along the first direction.

[0013] Optionally, two winding poles are provided, and the two winding poles are respectively a first winding pole and a second winding pole;

[0014] A first inductor coil and a second inductor coil are arranged on the first winding column at intervals, and a third inductor coil and a fourth inductor coil are arranged on the second winding column at intervals;

[0015] The first inductor coil and the third inductor coil are correspondingly arranged along the first direction and are anti-coupled to each other, and the second inductor coil and the fourth inductor coil are correspondingly arranged along the first direction and are anti-coupled to each other.

[0016] Optionally, each of the winding posts has a first winding segment and a second winding segment along its length direction, and the plurality of inductance coils on each of the winding posts are respectively wound around the first winding segment and the second winding segment;

[0017] The decoupling member is located between the plurality of first winding segments and the plurality of second winding segments, and the decoupling member has a first connecting side and a second connecting side that are relatively arranged along the length direction of the winding column, the first connecting side is connected to the plurality of first winding segments, and the second connecting side is connected to the plurality of second winding segments.

[0018] Optionally, the decoupling member is integrally formed with the first winding segments and the second winding segments respectively.

[0019] Optionally, the decoupling member is provided with a mounting hole corresponding to each of the winding posts along its length direction, and the first winding segment of each of the winding posts passes through the corresponding mounting hole and is connected to the second winding segment.

[0020] Optionally, the bracket further includes a first magnet and a second magnet, the plurality of winding posts are located between the first magnet and the second magnet, and the plurality of winding posts are detachably connected to the first magnet and the second magnet, respectively.

[0021] Optionally, each of the inductor coils includes a plurality of sub-coils, and the plurality of sub-coils are connected in series with each other and are sleeved on the outer circumference of the winding column.

[0022] In addition, to achieve the above-mentioned purpose, the utility model also proposes a multi-phase interleaved parallel converter, and the multi-phase interleaved parallel converter includes the anti-coupled integrated inductor as described above.

[0023] The technical solution of the utility model is to set a bracket, multiple inductance coils and a decoupling component. The bracket has at least two winding posts, at least two winding posts are arranged at intervals along the first direction, multiple inductance coils are arranged at intervals on each winding post, multiple inductance coils on each winding post are arranged in the same phase, and the inductance coils on adjacent winding posts are arranged in different phases, and any two adjacent inductance coils in different phases are mutually anti-coupled, and the decoupling component is arranged on the winding post and located between any two adjacent inductance coils arranged in the same phase, and the decoupling component is used to adjust the coupling coefficient between two adjacent inductance coils. The technical solution of the utility model integrates multiple inductance coils of the same phase parallel circuit on one winding post, thereby reducing the volume of the total inductance of the multi-phase interleaved parallel switch and reducing the overall machine space occupied by the total inductance. Moreover, multiple inductance coils on the same winding pole are positively coupled to each other, and different inductance coils influence each other and have mutual inductance. The inductance of one inductance coil is equal to the self-inductance of the inductance coil plus the mutual inductance, thereby increasing the steady-state total inductance of each phase parallel circuit, reducing the current ripple of the inductance of each phase parallel circuit, and reducing the loss of the current ripple to the switch device connected to each phase parallel circuit; any two adjacent inductance coils of different phases are reversely coupled to each other, that is, when multiple inductance coils on different winding poles are energized, the direction of the magnetic flux generated by the inductance coil on one winding pole is opposite to the direction of the magnetic flux generated by the inductance coil on another winding pole, and they cancel each other out and play a reverse coupling role, reducing the current ripple of the inductance of each phase parallel circuit and reducing the loss. Not only that, the decoupling component set between any two adjacent inductance coils of different phases can adjust the coupling coefficient between the multiple inductance coils on the same winding pole, and can also reduce the current ripple of the inductance of the multi-phase parallel circuit, reduce the loss, and extend the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0025] Figure 1 This is a schematic structural diagram of an embodiment of the anti-coupled integrated inductor of the utility model;

[0026] Figure 2 for Figure 1 Exploded diagram.

[0027] Description of Figure Numbers:

[0028] Label name Label name 100 Bracket 110 Winding column 111 First winding segment 112 The second winding segment 120 First magnet 130 Second magnet 200 Inductor Coil 400 Decoupling 410 First decoupling section 420 Second decoupling section

[0029] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0032] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0033] Before distributed energy storage and renewable energy are connected to the grid, they usually need to be processed by a boost converter. Among most boost converter topologies, the multi-phase interleaved parallel structure has attracted much attention due to its advantages such as high power density, high efficiency and small input current ripple.

[0034] The multi-phase interleaved parallel converter has a multi-phase parallel circuit, and each phase circuit is a full-bridge circuit. In a full-bridge circuit, common-mode noise often exists at its input. Common-mode noise is also called asymmetric noise or line-to-ground noise. This noise exists at the input end (transmission end and neutral line) of electrical equipment using AC power, and the phases of the two to the ground remain in phase.

[0035] In order to suppress common-mode noise, the prior art usually connects at least two independent anti-coupled integrated inductors with the same parameters to each phase circuit. However, multiple anti-coupled integrated inductors occupy a large space, which is often not conducive to the overall layout of the multi-phase interleaved parallel converter and the improvement of power density.

[0036] In order to improve the above situation, the utility model proposes an anti-coupled integrated inductor, which aims to reduce the volume of the inductor of the multi-phase interleaved parallel converter and reduce the space it occupies in the whole machine, while reducing the loss of current ripple to related components in the multi-phase interleaved parallel converter and extending its service life.

[0037] Reference Figure 1 and Figure 2 In one embodiment of the utility model, the anti-coupled integrated inductor includes:

[0038] The bracket 100 has at least two winding posts 110, and the at least two winding posts 110 are spaced apart along a first direction;

[0039] A plurality of inductance coils 200, each of the winding posts 110 is provided with a plurality of the inductance coils 200 at intervals, the plurality of the inductance coils 200 on each winding post 110 are provided in the same phase, the inductance coils 200 on adjacent winding posts 110 are provided in different phases, and any two adjacent inductance coils 200 in different phases are anti-coupled with each other; and

[0040] The decoupling component 400 is disposed on the winding post 110 and is located between any two adjacent inductance coils 200 disposed in the same phase. The decoupling component 400 is used to adjust the coupling coefficient between the two adjacent inductance coils 200 .

[0041] In this embodiment, the bracket 100 is used to install other components of the anti-coupled integrated inductor, and plays a role in installing other components. Optionally, the bracket 100 may include but is not limited to a plurality of winding posts 110, and may also include a magnetic structure for fixing the plurality of winding posts 110. This embodiment is described by the bracket 100 including a plurality of winding posts 110. The plurality of winding posts 110 are arranged at intervals along the first direction, and the first direction is the width direction of the bracket 100. Optionally, the plurality of winding posts 110 are arranged in sequence at intervals along the first direction; or they are arranged in multiple rows along the first direction, and the winding posts 110 in each row are arranged at intervals, or other arrangements are arranged in a manner that will not be elaborated on in detail. Optionally, the intervals between different winding posts 110 may be equal or unequal, and there is no specific limitation here. Optionally, the structural shape of each winding post 110 may be the same or different, and the number of winding posts 110 may be two or three, or even four.

[0042] In addition, a plurality of inductors 200 are disposed on each winding post 110, and the plurality of inductors 200 on each winding post 110 are disposed in the same phase, that is, the directions of the magnetic fluxes generated by the plurality of inductors 200 on the same winding post 110 when they are energized are the same, and the inductors formed by the plurality of inductors 200 on the same winding post 110 are positively coupled to each other. That is to say, multiple inductors of the same phase parallel circuit of the multi-phase interleaved parallel converter used in the present application can be integrated on a winding pole 110, and a part of the multiple inductors sharing the same winding pole 110 can be connected in series in the positive line of one phase circuit in the multi-phase parallel circuit, and another part of the multiple inductors can be connected in series in the negative line of the one phase circuit, so that each phase parallel circuit in the multi-phase parallel circuit has multiple inductors to suppress common-mode noise. Compared with the prior art of connecting at least two anti-coupled integrated inductors in each phase parallel circuit, the present application integrates all the inductors of each phase parallel circuit of the multi-phase interleaved parallel converter into a coupled integrated inductor, thereby reducing the volume of the total inductance of the multi-phase parallel circuit, thereby reducing the space occupied by the inductor in the multi-phase interleaved parallel converter, optimizing the overall layout of the multi-phase interleaved parallel converter and improving its power density.

[0043] Since a plurality of inductance coils 200 are arranged on a winding post 110, a plurality of inductances sharing a winding post 110 are formed, and the plurality of inductances are mutually positively coupled, and the inductances influence each other and there is a mutual inductance phenomenon, so the inductance of one of the inductors is equal to the self-inductance of the inductor itself plus the mutual inductance, thereby increasing the steady-state total inductance of each phase parallel circuit, reducing the current ripple of the inductance of each phase parallel circuit, and reducing the loss of the current ripple to the switch devices connected to each phase parallel circuit. Moreover, the inductance coils 200 on adjacent winding posts 110 are arranged in different phases, that is, when the plurality of inductance coils 200 on different winding posts 110 are energized, the direction of the magnetic flux generated by the inductance coil 200 on one winding post 110 is opposite to the direction of the magnetic flux generated by the inductance coil 200 on another winding post 110 and cancel each other, so as to play the role of anti-coupling, reduce the current ripple of the inductance of each phase parallel circuit, and reduce the loss.

[0044] Based on the above content, a decoupling component 400 is provided between any two adjacent inductor coils 200 arranged in different phases. The decoupling component 400 is used to adjust the coupling coefficient between multiple inductor coils 200 on the same winding pole 110 to further reduce the current ripple of the inductor of the multi-phase parallel circuit.

[0045] Optionally, when only one decoupling component 400 is provided, the decoupling component 400 can be provided between any two adjacent inductance coils 200 of a winding pole 110, for example, when only two inductance coils 200 are provided on a winding pole 110, the decoupling component 400 can be provided between the two inductance coils 200 at this time; or, it can be provided between any two adjacent inductance coils 200 of multiple winding poles 110 at the same time, for example, when the multiple winding poles 110 include two winding poles 110, namely a first winding pole 110a and a second winding pole 110b, two inductance coils 200 are provided on the first winding pole 110a, and two inductance coils 200 are also provided on the second winding pole 110b. At this time, the decoupling component 400 can be provided between the two inductance coils 200 of the first winding pole 110a and between the two inductance coils 200 of the second winding pole 110b at the same time. It can be seen that when the number of winding poles 110 is greater than two or the number of inductor coils 200 is greater than two, the position setting of the decoupling component 400 is similar to the above position setting, and no repetitive description is made here. Optionally, when there are multiple decoupling components 400, only one decoupling component 400 is provided on each winding pole 110; or, each winding pole 110 is provided with multiple decoupling components 400, in which case the number of multiple decoupling components 400 on each winding pole 110 may be equal or unequal, and the multiple decoupling components 400 on each winding pole 110 may be spaced apart along the length direction of the winding pole 110, or may be adjacent to each other, and there is no specific limitation here.

[0046] In an example of the present application, there are two winding posts 110, the two winding posts 110 are respectively a first winding post 110a and a second winding post 110b, the first winding post 110a is provided with a first inductor 200a and a second inductor 200b, the second winding post 110b is provided with a third inductor 200c and a fourth inductor 200d, the first inductor 200a and the third inductor 200c are provided with a corresponding arrangement along a first direction and are anti-coupled to each other, the third inductor 200c and the fourth inductor 200d are provided with a corresponding arrangement along a first direction and are anti-coupled to each other. There is one decoupling member 400, and the decoupling member 400 has a first decoupling section 410 and a second decoupling section 420. The first decoupling section 410 is located between the first inductor 200a and the second inductor 200b, and is used to adjust the coupling coefficient between the first inductor 200a and the second inductor 200b, and reduce the current ripple of the inductor formed by the first inductor 200a and the second inductor 200b. The second decoupling section 420 is located between the third inductor 200c and the fourth inductor 200d, and is used to adjust the coupling coefficient between the third inductor 200c and the fourth inductor 200d, and reduce the current ripple of the inductor formed by the third inductor 200c and the fourth inductor 200d. The interaction between the first decoupling section 410 and the second decoupling section 420 can reduce the loss of the current ripple to the relevant components in the multi-phase parallel circuit connected to the anti-coupling integrated inductor of the present application, and extend the service life of the multi-phase interleaved parallel converter.

[0047] The technical solution of the utility model is provided by setting a bracket 100, a plurality of inductance coils 200 and a decoupling member 400. The bracket 100 has a plurality of winding posts 110, the plurality of winding posts 110 are arranged at intervals along the first direction, a plurality of inductance coils 200 are arranged at intervals on each winding post 110, the plurality of inductance coils 200 on each winding post 110 are arranged in the same phase, the inductance coils 200 on adjacent winding posts 110 are arranged in different phases, and any two phase inductance coils 200 are mutually anti-coupled, the decoupling member 400 is provided on the winding post 110, and is located between any two adjacent inductance coils 200 arranged in the same phase, and the decoupling member 400 is used to adjust the coupling coefficient between the two adjacent inductance coils 200; the multi-phase interleaved parallel converter includes an anti-coupled integrated inductor. The technical solution of the utility model is to integrate a plurality of inductance coils 200 of the same phase parallel circuit on a winding post 110, thereby reducing the volume of the total inductance of the multi-phase interleaved parallel converter and reducing the space occupied by the total inductance. Moreover, the multiple inductors 200 on the same winding pole 110 are positively coupled to each other, and different inductors 200 influence each other and have mutual inductance. The inductance of one inductor 200 is equal to the self-inductance of the inductor 200 plus the mutual inductance, thereby increasing the steady-state total inductance of each phase parallel circuit, reducing the current ripple of the inductor of each phase parallel circuit, and reducing the loss of the current ripple to the switching devices connected to each phase parallel circuit; any two adjacent inductors 200 of different phases are anti-coupled to each other, that is, when the multiple inductors 200 on different winding poles 110 are energized respectively, the direction of the magnetic flux generated by the inductor 200 on one winding pole 110 is opposite to the direction of the magnetic flux generated by the inductor 200 on another winding pole 110, and they cancel each other out to play a role of anti-coupling, reducing the current ripple of the inductor of each phase parallel circuit and reducing the loss. Moreover, the decoupling element 400 provided between any two adjacent inductor coils 200 provided with different phases can adjust the coupling coefficient between the multiple inductor coils 200 on the same winding pole 110, and can also reduce the current ripple of the inductor of the multi-phase parallel circuit, reduce the loss, and extend the service life.

[0048] Reference Figure 1 and Figure 2 In one embodiment of the utility model, each of the winding posts 110 has a first winding segment 111 and a second winding segment 112 along its length direction, and the plurality of inductor coils 200 on each of the winding posts 110 are respectively wound around the first winding segment 111 and the second winding segment 112;

[0049] The decoupling member 400 is located between the plurality of first winding segments 111 and the plurality of second winding segments 112 , and the decoupling member 400 has a first connecting side and a second connecting side that are relatively arranged along the length direction of the winding column 110 , the first connecting side is connected to the plurality of first winding segments 111 , and the second connecting side is connected to the plurality of second winding segments 112 .

[0050] In this embodiment, the plurality of winding posts 110 include a first winding post 110a and a second winding post 110b. The first winding post 110a has a first winding segment 111a and a second winding segment 112a along its length, and the second winding segment 112 has a first winding segment 111b and a second winding segment 112b along its length. The decoupling member 400 has a first decoupling segment 410 and a second decoupling segment 420. The first decoupling segment 410 is located between the first winding segment 111a and the second winding segment 112a, and is connected to the first winding segment 111a and the second winding segment 112a, respectively; the second decoupling segment 420 is located between the first winding segment 111b and the second winding segment 112b, and is connected to the first winding segment 111b and the second winding segment 112b, respectively.

[0051] When the anti-coupled integrated inductor of this embodiment is assembled, after the first decoupling segment 410 is respectively connected to the first winding segment 111a and the second winding segment 112a, and the second decoupling segment 420 is respectively connected to the first winding segment 111b and the second winding segment 112b, it is only necessary to wind one or more inductor coils 200 on the first winding segment 111a, the second winding segment 112a, the first winding segment 111b and the second winding segment 112b to complete the assembly of the anti-coupled integrated inductor, and the assembly method is simple and quick.

[0052] Optionally, the first decoupling section 410 and the second decoupling section 420 are arranged correspondingly along the first direction, and the side of the first decoupling section 410 close to the second decoupling section 420 is connected to the second decoupling section 420 and formed as one piece, thereby improving the structural stability of the decoupling member 400. Optionally, when the first decoupling section 410 and the second decoupling section 420 are formed as one piece, the first decoupling section 410 is also formed as one piece with the first winding section 111a and the second winding section 112a, respectively, and the second decoupling section 420 is also formed as one piece with the first winding section 111b and the second winding section 112b, respectively, that is, the bracket 100 and the decoupling member 400 are formed as one piece, thereby effectively improving the structural stability of the anti-coupling integrated inductor. Moreover, when the anti-coupling integrated inductor is assembled, it is no longer necessary to use tools to connect the winding post 110 and the decoupling member 400, and it is only necessary to wind the inductor coil 200 on the corresponding winding post 110 to complete the assembly of the anti-coupling integrated inductor, thereby further improving the assembly efficiency.

[0053] Optionally, the decoupling component 400 is provided with a mounting hole corresponding to each winding post 110, and the first winding segment 111 of each winding post 110 is connected to the second winding segment 112 through the corresponding mounting hole, that is, the first decoupling segment 410 is provided with a first mounting hole corresponding to the first winding post 110a, and the second decoupling segment 420 is provided with a second mounting hole corresponding to the second winding post 110b. The first winding segment 111a of the first winding post 110a is connected to the second winding segment 112a through the first mounting hole, and / or the first winding segment 111b of the second winding post 110b is connected to the second winding segment 112b through the second mounting hole, so that the first winding post 110a and / or the second winding post 110b can be quickly installed on the decoupling component 400, which improves the assembly efficiency of the anti-coupling integrated inductor and makes the structure of the anti-coupling integrated inductor more compact.

[0054] Reference Figure 1 and Figure 2 In one embodiment of the utility model, the bracket 100 also includes a first magnet 120 and a second magnet 130, and the plurality of winding poles 110 are located between the first magnet 120 and the second magnet 130, and the plurality of winding poles 110 are detachably connected to the first magnet 120 and the second magnet 130 respectively.

[0055] Specifically, in this embodiment, in addition to including a plurality of winding posts 110, the bracket 100 also includes a first magnet 120 and a second magnet 130 for limiting a plurality of inductor coils 200 on the plurality of winding posts 110. Optionally, the shapes of the first magnet 120 and the second magnet 130 may be rectangular, square, circular or irregular, etc. For ease of assembly, in this embodiment, the shapes of the first magnet 120, the second magnet 130, the winding post 110 and the decoupling member 400 are all rectangular. The length directions of the first magnet 120 and the second magnet 130 are parallel to the first direction. A certain spacing distance is set between the first magnet 120 and the second magnet 130 to set a plurality of winding posts 110, and the plurality of winding posts 110 are detachably connected to the first magnet 120 and the second magnet 130, respectively. In this way, a plurality of inductor coils 200 can be quickly installed on each winding post 110 by winding or sleeve, thereby improving the assembly efficiency of the anti-coupled integrated inductor.

[0056] Reference Figure 1 and Figure 2 In one embodiment of the present invention, each of the inductor coils 200 includes a plurality of sub-coils, and the plurality of sub-coils are connected in series and are sleeved on the outer circumference of the winding post 110 .

[0057] Specifically, in this embodiment, each inductor 200 includes a plurality of sub-coils, and the plurality of sub-coils are connected in series to each other, so that when a single sub-coil is energized, the entire inductor 200 is also energized. After the decoupling member 400 is installed on the winding post 110, the plurality of sub-coils can be installed one by one on the winding post 110 by means of sleeve installation. Compared with the coil winding method in the prior art by means of layer-by-layer winding, the installation efficiency of the inductor 200 of this embodiment will be further improved.

[0058] Optionally, the sub-coil may include, but is not limited to, enameled wire, film-covered wire, paper-covered wire, and three-layer insulated wire, and may also include other conductive wires, etc., which are not specifically limited here.

[0059] The utility model also proposes a multi-phase interleaved parallel converter, which includes an anti-coupled integrated inductor. The specific structure of the anti-coupled integrated inductor refers to the above-mentioned embodiment. Since the multi-phase interleaved parallel converter adopts all the technical solutions of all the above-mentioned embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here one by one.

[0060] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A reverse coupled integrated inductor, characterized in that: include: The bracket has at least two winding posts, and the at least two winding posts are arranged at intervals along a first direction; A plurality of inductance coils, each of the winding posts is provided with a plurality of the inductance coils at intervals, the plurality of the inductance coils on each winding post are provided in the same phase, the inductance coils on adjacent winding posts are provided in different phases, and any two adjacent inductance coils in different phases are mutually anti-coupled; and The decoupling component is arranged on the winding column and located between any two adjacent inductance coils arranged in the same phase. The decoupling component is used to adjust the coupling coefficient between the two adjacent inductance coils.

2. The anti-coupled integrated inductor according to claim 1, characterized in that: There are multiple decoupling components, and each winding pole is provided with one or more decoupling components.

3. The anti-coupled integrated inductor according to claim 2, characterized in that: Each of the winding poles is provided with one or more decoupling members at intervals along its length direction; And / or, the number of the decoupling components on each of the winding poles is equal, and the decoupling components on adjacent winding poles are arranged and connected in a one-to-one correspondence along the first direction.

4. The anti-coupled integrated inductor according to claim 1, characterized in that: There are two winding poles, and the two winding poles are respectively a first winding pole and a second winding pole; A first inductor coil and a second inductor coil are arranged on the first winding column at intervals, and a third inductor coil and a fourth inductor coil are arranged on the second winding column at intervals; The first inductor coil and the third inductor coil are correspondingly arranged along the first direction and are anti-coupled to each other, and the second inductor coil and the fourth inductor coil are correspondingly arranged along the first direction and are anti-coupled to each other.

5. The anti-coupled integrated inductor according to claim 1, characterized in that: Each of the winding posts has a first winding segment and a second winding segment along its length direction, and the plurality of inductance coils on each of the winding posts are respectively wound around the first winding segment and the second winding segment; The decoupling member is located between the plurality of first winding segments and the plurality of second winding segments, and the decoupling member has a first connecting side and a second connecting side that are relatively arranged along the length direction of the winding column, the first connecting side is connected to the plurality of first winding segments, and the second connecting side is connected to the plurality of second winding segments.

6. The anti-coupled integrated inductor according to claim 5, characterized in that: The decoupling member is integrally formed with the first winding segments and the second winding segments respectively.

7. The anti-coupled integrated inductor according to claim 5, characterized in that: The decoupling member is provided with a mounting hole corresponding to each of the winding posts along its length direction, and the first winding segment of each of the winding posts passes through the corresponding mounting hole and is connected with the second winding segment.

8. The anti-coupled integrated inductor according to claim 1, characterized in that: The bracket also includes a first magnet and a second magnet. The plurality of winding posts are located between the first magnet and the second magnet. The plurality of winding posts are detachably connected to the first magnet and the second magnet, respectively.

9. The anti-coupled integrated inductor according to claim 1, characterized in that: Each of the inductor coils includes a plurality of sub-coils, which are connected in series and sleeved on the outer circumference of the winding column.

10. A multi-phase interleaved parallel converter, characterized in that: The multi-phase interleaved parallel converter comprises the anti-coupled integrated inductor as claimed in any one of claims 1 to 9.

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