Electric reactor assembly

Abstract

The utility model relates to the technical field of electric reactors, in particular to an electric reactor assembly which comprises an air-core electric reactor and an iron core electric reactor, the air-core electric reactor is fixedly arranged on the iron core electric reactor, and the air-core electric reactor and the iron core electric reactor are both horizontally installed. The size of the transverse section of the air-core reactor is the same as that of the transverse section of the iron-core reactor, so that the occupied volume of the air-core reactor and the iron-core reactor can be reduced, and the reactor is more flexible to use.

Description

Technical Field

[0001] The utility model relates to the technical field of reactors, and specifically relates to a reactor assembly. Background Art

[0002] To meet the needs of the stable operation of the electromechanical equipment circuit in urban rail transit stations, in the current solution, air-core reactors and iron-core reactors are added to the rail transit circuit. The inductance and quality factor of the iron-core inductor are relatively high, but the operating frequency is limited, and problems such as saturation and hysteresis loss are likely to occur. The air-core reactor is suitable for high-frequency application circuits, with a relatively low quality factor but smaller losses, and is suitable for occasions where a large number of inductance elements are used. The air-core reactor and the iron-core reactor can complement each other and play roles such as limiting inrush current, limiting short-circuit current, filtering, smoothing, lightning protection, and blocking waves in the power system. In the prior art, the commonly used method for placing reactors is external attachment, that is, the air-core reactor and the iron-core reactor are designed and placed separately, so the occupied volume is relatively large. Content of the Utility Model

[0003] Aiming at the deficiencies of the prior art, the purpose of the utility model is to provide a reactor assembly, which can reduce the occupied volume of the air-core reactor and the iron-core reactor and make the use of the reactor more flexible.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A reactor assembly includes an air-core reactor and an iron-core reactor. The air-core reactor is fixedly arranged on the iron-core reactor. Among them, both the air-core reactor and the iron-core reactor are horizontally installed, and the cross-sectional size of the air-core reactor in the horizontal direction is the same as that of the iron-core reactor in the horizontal direction.

[0005] Preferably, the air-core reactor includes a frame, an air-core winding arranged inside the frame, and a plurality of silicon steel sheets; the lower end of the frame is fixedly connected to the upper end of the iron-core reactor; the air-core winding includes a plurality of coils, and the coils and the silicon steel sheets are arranged alternately along the length direction of the frame.

[0006] Preferably, the frame includes a first insulating plate, a second insulating plate, a plurality of support bars, and a first tension bolt; the first insulating plate is fixedly arranged on the right side of the second insulating plate through the first tension bolt, and a plurality of support bars are arranged between the first insulating plate and the second insulating plate; the coils are sleeved outside the plurality of support bars.

[0007] Preferably, the support bars are inserted into both the first insulating plate and the second insulating plate.

[0008] Preferably, a longitudinally penetrating through groove is formed along the length direction of the silicon steel sheet.

[0009] Preferably, the air-core reactor further includes a first outgoing line row disposed on the first insulating plate; the first outgoing line row is connected to the air-core winding.

[0010] Preferably, the iron-core reactor includes two clamping members, an iron core, three iron-core windings, and three sets of lead assemblies; the two clamping members are respectively disposed at the front end and the rear end of the iron core, and both clamping members are fixedly connected to the first insulating plate and the second insulating plate; the three iron-core windings are disposed on the iron core; the lead assemblies are arranged corresponding to the iron-core windings.

[0011] Preferably, the lead assembly includes a lower outgoing line row, an upper outgoing line row, a connecting wire, and a second lead row; the lower outgoing line row and the second lead row are both connected to the iron-core windings at corresponding positions; the upper outgoing line row is disposed on the second insulating plate and is connected to the lower outgoing line row through the connecting wire.

[0012] Preferably, the clamping members are fixedly connected to the first insulating plate and the second insulating plate through bolts.

[0013] Preferably, the iron-core reactor further includes a wooden clamping strip; the upper outgoing line row is fixed to the outer end of the second insulating plate through the clamping strip.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows: By fixedly disposing the air-core reactor on the iron-core reactor to form a reactor combination body, wherein both the air-core reactor and the iron-core reactor are horizontally installed, and the cross-sectional size of the air-core reactor in the horizontal direction is the same as the cross-sectional size of the iron-core reactor in the horizontal direction. Such an integrated design can not only improve the integrity of the reactor combination body, but also effectively reduce the installation space occupied, and at the same time make the use of the reactor more flexible. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a front-side structural schematic diagram of the reactor combination body of the present utility model;

[0016] Figure 2 is a lower-side structural schematic diagram of the reactor combination body of the present utility model;

[0017] Figure 3 is a frame structural schematic diagram of the present utility model;

[0018] Figure 4 is a structural schematic diagram of the silicon steel sheet of the present utility model.

[0019] In the figure: 1 air-core reactor, 11 first insulating plate, 12 second insulating plate, 13 air-core winding, 14 silicon steel sheet, 15 support bar, 16 first lead row, 17 first tie bolt, 141 through slot;

[0020] 2 Core reactor, 21 Clamping member, 22 Core, 23 Core winding, 24 Lower outgoing busbar, 25 Upper outgoing busbar, 26 Second tie bolt, 27 Connecting wire, 28 Second lead busbar, 29 Clamping bar. Detailed implementation manners

[0021] The following describes in detail the specific implementation manners of the present utility model with reference to the accompanying drawings, so that those skilled in the art can more clearly understand how to practice the present utility model. Although the present utility model is described in conjunction with its preferred specific implementation manners, these implementation manners are only illustrative and do not limit the scope of the present utility model.

[0022] Specific embodiment 1: Please refer to Figures 1-4 A reactor assembly, comprising: a hollow reactor 1 and a core reactor 2, the hollow reactor 1 is fixedly arranged on the core reactor 2 to form a reactor assembly. Among them, both the hollow reactor 1 and the core reactor 2 are horizontally installed, and the cross-sectional size of the hollow reactor 1 in the horizontal direction is the same as the cross-sectional size of the core reactor 2 in the horizontal direction. Such an integrated design can not only improve the integrity of the reactor assembly, but also effectively reduce the installation space occupied.

[0023] Specifically, the hollow reactor 1 includes a first insulating plate 11, a second insulating plate 12, a hollow winding 13, a plurality of silicon steel sheets 14, four support bars 15, two first outgoing busbars 16, and a plurality of first tie bolts 17. The first insulating plate 11, the second insulating plate 12 and the four support bars 15 form a framework. The support bars 15 are arranged between the first insulating plate 11 and the second insulating plate 12, and the support bars 15 are fixedly connected to the first insulating plate 11 and the second insulating plate 12 by plugging. Compared with the existing horizontal winding structure reactor, the insulating cylinder is omitted, and the production cost of the reactor can be reduced by simplifying the structure;

[0024] The first insulating plate 11 and the second insulating plate 12 are fixedly connected by the first tie bolts 17 to make the framework more stable;

[0025] The hollow winding 13 is arranged between the first insulating plate 11 and the second insulating plate 12 through a plurality of silicon steel sheets 14 and support bars 15. Among them, the hollow winding 13 is composed of a plurality of coil structures in the shape of cakes. The four support bars 15 form a rectangular support frame, and the coils are wound around the outer periphery of the support frame. A plurality of coils and a plurality of silicon steel sheets 14 are alternately arranged between the first insulating plate 11 and the second insulating plate 12, and the silicon steel sheets 14 play a role of clamping and limiting the coils;

[0026] Both of the two first outgoing busbars 16 are arranged on the first insulating plate 11. The first outgoing busbar 16 is used to input the electric energy of the external power supply into the hollow reactor 1 and output the transmitted electric energy from the hollow reactor 1 to the outside.

[0027] Furthermore, in order to reduce the heat accumulation between the silicon steel sheet 14 and the coil, a longitudinally penetrating through groove 141 is formed in the silicon steel sheet 14 along its length direction.

[0028] The iron core reactor 2 is a three-phase reactor, which is composed of two clamping members 21, an iron core 22, three iron core windings 23, three groups of lead assemblies, several second tie bolts 26 and clamping bars 29. The two clamping members 21 are fixedly arranged at the front and rear ends of the iron core 22 through the second tie bolts 26. The three iron core windings 23 are arranged on the iron core columns. The lead assemblies are correspondingly arranged with the iron core windings 23 for inputting the electric energy of an external power supply into the iron core reactor 2 and outputting the transmitted electric energy from the iron core reactor 2 to the outside.

[0029] The lead assembly includes a lower outgoing line row 24, an upper outgoing line row 25, a connecting wire 27 and a second lead row 28. The lower outgoing line row 24 and the second lead row 28 are respectively connected with the corresponding iron core windings 23. The lower outgoing line row 24 is located below the second lead row 28. The upper outgoing line row 25 is arranged on the second insulating plate 12 through the clamping bar 29. The upper outgoing line row 25 is connected with the lower outgoing line row 24 through the connecting wire 27 for convenient wiring.

[0030] Furthermore, the clamping bar 29 is a wooden support structure.

[0031] In addition, it should be noted that, in order to achieve an integrated design, the first insulating plate 11 and the second insulating plate 12 are arranged in the left-right direction, while the two clamping members 21 are arranged in the front-rear direction. The lower ends of the first insulating plate 11 and the second insulating plate 12 are respectively fixedly connected to the upper ends of the corresponding clamping members 21 through bolts.

[0032] Through this technical solution, a reactor combination is formed by fixedly arranging a hollow reactor on an iron core reactor. Among them, both the hollow reactor and the iron core reactor are horizontally installed, and the cross-sectional dimension of the hollow reactor in the horizontal direction is the same as that of the iron core reactor in the horizontal direction. Such an integrated design can not only improve the integrity of the reactor combination, but also effectively reduce the installation occupied space.

[0033] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A reactor assembly, characterized in that: It includes an air-core reactor (1) and an iron-core reactor (2). The air-core reactor (1) is fixedly arranged on the iron-core reactor (2). Among them, both the air-core reactor (1) and the iron-core reactor (2) are horizontally installed, and the cross-sectional dimension of the air-core reactor (1) in the horizontal direction is the same as that of the iron-core reactor (2) in the horizontal direction.

2. The reactor assembly according to claim 1, wherein: The air-core reactor (1) includes a frame and an air-core winding (13) and a number of silicon steel sheets (14) arranged inside the frame; the lower end of the frame is fixedly connected to the upper end of the iron-core reactor (2); the air-core winding (13) includes a number of coils, and the coils and the silicon steel sheets (14) are alternately arranged along the length direction of the frame.

3. The reactor assembly according to claim 2, characterized in that: The frame includes a first insulating plate (11), a second insulating plate (12), a number of braces (15) and a first tie bolt (17); the first insulating plate (11) is fixedly arranged on the right side of the second insulating plate (12) through the first tie bolt (17), and a number of braces (15) are arranged between the first insulating plate (11) and the second insulating plate (12); the coils are sleeved outside a number of braces (15).

4. The reactor assembly according to claim 3, wherein: The braces (15) are inserted into both the first insulating plate (11) and the second insulating plate (12).

5. The reactor assembly according to claim 2, wherein: Longitudinally penetrating through slots are formed in the silicon steel sheets (14) along their length directions.

6. The reactor combination according to claim 3, characterized in that: The air-core reactor (1) further includes a first outgoing line row (16) arranged on the first insulating plate (11); the first outgoing line row (16) is connected to the air-core winding (13).

7. The reactor assembly according to claim 2, wherein: The iron-core reactor (2) includes two clamping members (21), an iron core (22), three iron-core windings (23), and three groups of lead assemblies; the two clamping members (21) are respectively arranged at the front end and the rear end of the iron core (22), and both the two clamping members (21) are fixedly connected to the first insulating plate (11) and the second insulating plate (12); the three iron-core windings (23) are arranged on the iron core (22); the lead assemblies are arranged corresponding to the iron-core windings (23).

8. The reactor assembly according to claim 7, wherein: The lead assembly includes a lower outgoing line row (24), an upper outgoing line row (25), a connecting wire (27) and a second lead row (28); the lower outgoing line row (24) and the second lead row (28) are both connected to the iron-core windings (23) at corresponding positions; the upper outgoing line row (25) is arranged on the second insulating plate (12) and the upper outgoing line row (25) is connected to the lower outgoing line row (24) through the connecting wire (27).

9. The reactor assembly according to claim 7, wherein: The clamping members (21) are fixedly connected to the first insulating plate (11) and the second insulating plate (12) through bolts.

10. The reactor assembly according to claim 8, characterized in that: The iron-core reactor (2) further includes a wooden clamping strip; the upper outgoing line row (25) is fixed to the outer end of the second insulating plate (12) through the clamping strip.

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