CN115223779A

CN115223779A - Three-phase double-winding self-coupling integrated reactor

Info

Publication number: CN115223779A
Application number: CN202210940680.XA
Authority: CN
Inventors: 赵德锁; 马秀瑞; 张克波
Original assignee: Hefei Yunlu Juneng Electric Co ltd
Current assignee: Hefei Yunlu Juneng Electric Co ltd
Priority date: 2022-08-06
Filing date: 2022-08-06
Publication date: 2022-10-21

Abstract

The invention discloses a three-phase double-winding self-coupling integrated reactor, which comprises a coil, wherein an A-phase coil, a B-phase coil and a C-phase coil are arranged inside the coil, central iron cores are arranged inside the A-phase coil, the B-phase coil and the C-phase coil, central clamping pieces are symmetrically arranged at two ends of each central iron core, a first iron core and a second iron core are respectively arranged at two ends of each central clamping piece in a matched manner, a first clamping piece and a second clamping piece are arranged at one end, close to the first iron core, of each central clamping piece, the first clamping pieces, the middle clamping pieces, the first iron cores and the second clamping pieces are installed together through a plurality of assembling components, a third clamping piece and a fourth clamping piece are arranged at one end, close to the second iron core, of each central clamping piece, and the third clamping piece, the middle clamping pieces, the second iron cores and the fourth clamping pieces are installed together through a plurality of assembling components; the structure is adopted to form a plurality of groups of inductance, so that the integrated reactor adjusts the inductance output requirement by changing the wiring end.

Description

Three-phase double-winding self-coupling integrated reactor

Technical Field

The invention relates to the technical field of electronic elements, in particular to a three-phase double-winding self-coupling integrated reactor.

Background

Reactors, also called inductors, are electrical conductors that, when energized, generate a magnetic field in a certain spatial area occupied by a conductor, so that all electrical conductors capable of carrying current are inductive in the general sense. However, the inductance of the energized long straight conductor is small, and the generated magnetic field is not strong, so that the actual reactor is a reactor in which a conducting wire is wound into a solenoid, which is called an air-core reactor, and sometimes, in order to make the solenoid have larger inductance, a core is inserted into the solenoid, which is called a core reactor. Reactance is divided into inductive reactance and capacitive reactance, and the more scientific classification is that inductive reactance ware (inductor) and capacitive reactance ware (condenser) are collectively called the reactor, and along with electrical equipment's continuous popularization, people also constantly increase to the demand of reactor.

The prior staggered control circuit has wide application and needs two reactors to work simultaneously or alternatively. The simplest scheme at present is to use two separate reactors, but the two separate reactors have larger use volume and low space utilization rate, and the cost of using the two separate reactors is high.

Disclosure of Invention

In order to overcome the technical problems, the invention aims to provide a three-phase double-winding self-coupling integrated reactor.

The purpose of the invention can be realized by the following technical scheme:

the utility model provides a three-phase double winding self coupling formula integrated reactor, including the solenoid, solenoid inside is provided with A looks coil, B looks coil and C looks coil, and A looks coil, the inside of B looks coil and C looks coil all is provided with central iron core, central iron core both ends symmetry is provided with well folder, a plurality of well folder both ends are provided with first iron core and second iron core respectively in the cooperation, and a plurality of well folders are close to first iron core one end and are provided with first folder and second folder, wherein first folder, well folder, first iron core and second folder are in the same place through a plurality of assembly subassemblies installation, a plurality of well folders are close to second iron core one end and are provided with third folder and fourth folder, wherein third folder, well folder, second iron core and fourth folder are in the same place through a plurality of assembly subassemblies installation.

As a further scheme of the invention: the central iron core is divided into three sections, and a first air gap pad is arranged between every two sections of the central iron core.

As a further scheme of the invention: a plurality of first insulation base plates and a second air gap pad are arranged between the first iron core and the central iron core, and the first insulation base plates and the second air gap pad are arranged in a staggered mode.

As a further scheme of the invention: a plurality of second insulating base plates and third air gap pads are arranged between the second iron core and the central iron core and are arranged in a staggered mode.

As a further scheme of the invention: a looks coil both ends are equipped with A1, A2, A1 and A2 wiring end respectively, and B looks coil both ends are equipped with B1, B2, B1 and B2 wiring end respectively, and C looks coil both ends are equipped with C1, C2, C1 and C2 wiring end respectively to A1, A2, B1, B2, C1 and C2 wiring end are located same one side, and A1, A2, B1, B2, C1 and C2 wiring end are located same one side.

As a further scheme of the invention: the assembly component comprises a mounting bolt, the head of the mounting bolt is sleeved with an insulating flat gasket, a carbon steel flat gasket and a spring gasket, and a mounting nut is mounted at one end of the outer side of the spring gasket.

As a further scheme of the invention: the insulating flat gasket is positioned on the inner side of the carbon steel flat gasket, and the spring gasket is positioned on the outer side of the carbon steel flat gasket.

The invention has the beneficial effects that:

according to the integrated reactor, the A-phase first winding is connected with the A-phase second winding in series, the B-phase first winding is connected with the B-phase second winding in series, the C-phase first winding is connected with the C-phase second winding in series to form three groups of inductance, wherein A1-A2/B1-B2/C1-C2 are one group of inductance, A1-A2/B1-B2/C1-C2 are one group of inductance, and A1-A2/B1-B2/C1-C2 are one group of inductance, so that the integrated reactor adjusts the inductance output requirement by changing a terminal, and meanwhile, the integrated reactor reduces the volume and the weight of a product and further reduces the production cost.

Drawings

The invention is further described below with reference to the accompanying drawings.

FIG. 1 is a schematic illustration of an explosive structure according to the present invention;

FIG. 2 is a schematic view of the overall front view structure of the present invention;

FIG. 3 is a schematic view of the overall top view of the present invention;

FIG. 4 is a schematic overall side view of the present invention;

FIG. 5 is a schematic view of the construction of the fitting assembly of the present invention;

FIG. 6 is a schematic diagram of the wiring structure of the phase A first winding and the phase A second winding in the invention;

FIG. 7 is a schematic diagram of the first and second winding structures of the present invention;

FIG. 8 is a cross-sectional view of a wire wound according to the present invention;

FIG. 9 is a schematic diagram of the phase A coil structure of the present invention;

fig. 10 is a schematic diagram of the circuit connection of the present invention.

In the figure: 1. a coil; 11. a stay; 12. a phase A coil; 13. a B-phase coil; 14. a C-phase coil; 2. a central iron core; 21. a first air gap pad; 3. a middle clamping piece; 4. a first iron core; 41. a first insulating pad; 42. a second air gap pad; 5. a second iron core; 51. a second insulating pad; 52. a third air gap pad; 6. a first clamp; 7. a second clamp; 8. a third clip member; 9. a fourth clip member; 120. assembling the components; 1201. installing a bolt; 1202. an insulating flat gasket; 1203. a carbon steel flat gasket; 1204. a spring washer; 1205. mounting a nut; 200. a first winding; 300. a second winding.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1-10, the integrated reactor is a three-phase double-winding self-coupling integrated reactor, the integrated reactor comprises a coil 1, three groups of coils are arranged in the coil 1, the three groups of coils are an a-phase coil 12, a B-phase coil 13 and a C-phase coil 14, and a central core 2 is arranged inside each of the a-phase coil 12, the B-phase coil 13 and the C-phase coil 14, wherein each central core 2 is also divided into three sections, a first air gap pad 21 is arranged between each section, the magnetic flux rate is changed by adjusting the first air gap pad 21, so that the reactance value is changed, meanwhile, middle clamping pieces 3 are arranged on both sides of each central core 2, each two middle clamping pieces 3 clamp one central core 2 in the middle, and are assembled together in the middle of the a-phase coil 12, the B-phase coil 13 and the C-phase coil 14, supporting strips 11 are arranged outside the two middle clamping pieces 3 and on the inner sides of the a-phase coil 12, the B-phase coil 13 and the C-phase coil 14, the brace 11 is manually hammered in, and supports an a-phase coil 12, a B-phase coil 13, a C-phase coil 14 and an internal central iron core 2, and one end of the middle clamping piece 3 extending out of the a-phase coil 12, the B-phase coil 13 and the C-phase coil 14 is provided with a first iron core 4, the other end is provided with a second iron core 5, wherein a plurality of first insulating base plates 41 and second air gap pads 42 are arranged between the first iron core 4 and the central iron core 2, and the plurality of first insulating base plates 41 and the plurality of second air gap pads 42 are arranged in a staggered manner, a plurality of second insulating base plates 51 and third air gap pads 52 are further arranged between the second iron core 5 and the central iron core 2, the plurality of second insulating base plates 51 and third air gap pads 52 are arranged in a staggered manner, the top and the bottom of the middle clamping piece 3 positioned outside the first iron core 4 are respectively provided with a second clamping piece 7 and a first clamping piece 6, and the first clamping piece 6, the middle clamping piece 3, the first iron core 4 and the second clamping piece 7 are mounted together through a plurality of assembly components 120, the fourth clamping piece 9 and the third clamping piece 8 are respectively arranged at the top and the bottom of the middle clamping piece 3 at the outer side of the second iron core 5, and similarly, the third clamping piece 8, the middle clamping piece 3, the second iron core 5 and the fourth clamping piece 9 are also mounted together through a plurality of assembly components 120, wherein the first insulating pad 41 and the second insulating pad 51 comprise but are not limited to insulating paper and insulating plates.

As further shown in fig. 1 and fig. 3, two ends of the phase a coil 12 are respectively provided with A1, A2, A1 and A2 terminals, two ends of the phase B coil 13 are respectively provided with B1, B2, B1 and B2 terminals, two ends of the phase C coil 14 are respectively provided with C1, C2, C1 and C2 terminals, and A1, A2, B1, B2, C1 and C2 are located on the same side.

As shown in fig. 6 to 9, the winding structure of the present invention is that, the above-mentioned coil package 1 is formed by winding a first winding 200 and a second winding 300 with winding insulation paper, wherein the first winding 200 is divided into an a-phase first winding, a B-phase first winding and a C-phase first winding, the second winding 300 is divided into an a-phase second winding, a B-phase second winding and a C-phase second winding, and the winding manner of the a-phase coil 12 is as follows: a phase A first winding is used for winding on the top of inner layer insulation, a first layer is wound at first, the number of turns is 52, then winding insulation paper is covered, a layer is wound, the number of turns is 22, then a layer of winding insulation paper is covered, an phase A second winding is used for winding, the number of turns is 74, finally a layer of peripheral insulation paper is covered on the upper surface, an phase A coil 12 is formed, two wiring terminals A1 and A2 of the phase A first winding are located at one end, two wiring terminals A1 and A2 of the phase A second winding are located at one end, the winding modes of a phase B coil 13 and a phase C coil 14 are completely the same as the winding modes of the phase A coil 12, and the phase A coil 12, the phase B coil 13 and the phase C coil 14 are formed through winding.

Further as shown in fig. 10, the circuit connection relationship inside the integrated reactor is that the a-phase first winding is connected in series with the a-phase second winding, the B-phase first winding is connected in series with the B-phase second winding, and the C-phase first winding is connected in series with the C-phase second winding to form three sets of inductances, where A1-A2/B1-B2/C1-C2 is a set of inductances, and A1-A2/B1-B2/C1-C2 is a set of inductances. Therefore, the integrated reactor adjusts the inductance output requirement by changing the terminal.

As shown in fig. 5, the assembling assembly 120 includes a mounting bolt 1201, and the mounting bolt 1201 is disposed through when the integrated reactor is assembled, and passes through the parts from top to bottom, and an insulating flat gasket 1202, a carbon steel flat gasket 1203, and a spring gasket 1204 are sleeved on a head of the mounting bolt 1201, wherein the insulating flat gasket 1202 is located at an innermost end, the spring gasket 1204 is located at an outermost end, and a mounting nut 1205 is mounted at one end of the mounting bolt 1201 outside the spring gasket 1204 to fix positions of the components.

According to the invention, the requirement of multiple inductance output is realized by integrating a plurality of groups of reactor structures, and the integrated reactor reduces the volume and weight of the product, thereby further reducing the production cost.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in 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 and a specific orientation configuration and operation, and thus, should not be construed as limiting the present invention. Furthermore, "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.

Claims

1. The three-phase double-winding self-coupling integrated reactor comprises a coil (1), and is characterized in that an A-phase coil (12), a B-phase coil (13) and a C-phase coil (14) are arranged inside the coil (1), a central iron core (2) is arranged inside each of the A-phase coil (12), the B-phase coil (13) and the C-phase coil (14), middle clamping pieces (3) are symmetrically arranged at two ends of the central iron core (2), the outer sides of the middle clamping pieces (3) are arranged on supporting bars (11), a first iron core (4) and a second iron core (5) are respectively arranged at two ends of each of the middle clamping pieces (3) in a matching mode, a first clamping piece (6) and a second clamping piece (7) are arranged at one end, close to the first iron core (4), of each of the middle clamping pieces (3), the first iron core (4) and the second clamping piece (7), a third clamping piece (8) and a fourth clamping piece (9) are arranged at one end, of each of the middle clamping pieces (3), a third clamping piece (8) and a fourth clamping piece (9) are arranged at one end of each middle clamping piece (3), and a plurality of the iron cores (9).

2. A three-phase double-winding self-coupled integrated reactor according to claim 1, characterized in that the central core (2) is divided into three sections, and a first air gap pad (21) is arranged between each section of the central core (2).

3. A three-phase double winding self-coupled integrated reactor according to claim 1, characterized in that a plurality of first insulating pad plates (41) and second air gap pads (42) are arranged between the first iron core (4) and the central iron core (2), and the plurality of first insulating pad plates (41) and second air gap pads (42) are arranged alternately.

4. A three-phase double-winding self-coupled integrated reactor according to claim 1, characterized in that a plurality of second insulating pad plates (51) and third air gap pads (52) are arranged between the second iron core (5) and the central iron core (2), and the plurality of second insulating pad plates (51) and third air gap pads (52) are arranged alternately.

5. A three-phase double-winding self-coupling integrated reactor according to claim 1, characterized in that, the two ends of the phase a coil (12) are respectively provided with A1, A2, A1 and A2 terminals, the two ends of the phase B coil (13) are respectively provided with B1, B2, B1 and B2 terminals, the two ends of the phase C coil (14) are respectively provided with C1, C2, C1 and C2 terminals, the A1, A2, B1, B2, C1 and C2 terminals are located on the same side, and the A1, A2, B1, B2, C1 and C2 terminals are located on the same side.

6. The reactor of claim 1, wherein the assembly component (120) comprises a mounting bolt (1201), the head of the mounting bolt (1201) is sleeved with an insulating flat gasket (1202), a carbon steel flat gasket (1203) and a spring gasket (1204), and a mounting nut (1205) is mounted at one end of the mounting bolt (1201) outside the spring gasket (1204).

7. A three-phase double winding self-coupled integrated reactor according to claim 6, characterized in that the insulating flat gasket (1202) is located inside the carbon steel flat gasket (1203), and the spring gasket (1204) is located outside the carbon steel flat gasket (1203).