Dry-type air-core current-limiting reactor

Abstract

The utility model relates to the technical field of current-limiting reactors, and discloses a dry-type hollow-core current-limiting reactor which comprises a reactor body and a limiting component arranged on the outer side of the reactor body. Four clamping shafts are fixedly mounted on the upper side and the lower side of each electric reactor, a limiting column is fixedly mounted between every two adjacent electric reactors, and cover pieces are arranged on the upper side and the lower side of the center of each electric reactor; the limiting component comprises a clamping shell, the clamping shell is fixedly installed on the outer side of the limiting column, and the side face of the clamping shaft is provided with an inner side capable of being clamped to the clamping shell. According to the dry type air core current limiting reactor, by optimizing the coil structure and material selection, the linearity of the reactor is improved, the stable performance of the reactor can be kept under wider working conditions, meanwhile, rapid assembly or disassembly is achieved through the clamping shafts and the limiting clamping grooves, and the convenience and reliability of the reactor are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of current limiting reactors, in particular to a dry-type air-core current limiting reactor. Background Art

[0002] Dry-type air-core current-limiting reactors play an important role in power systems. They are mainly used to limit short-circuit currents and protect lines and busbars from being affected by excessively low voltages. They are mainly based on the principle of electromagnetic induction and achieve current limiting through the structure of air-core coils.

[0003] However, the existing dry-type air-core current limiting reactor also has some defects. Its linearity may not be ideal, resulting in unstable performance under certain working conditions. At the same time, it is difficult to quickly assemble and install the reactors on the upper and lower sides, and it is difficult to maintain stability after installation. Therefore, a dry-type air-core current limiting reactor is proposed. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a dry-type air-core current-limiting reactor, which has the advantages of stable fixation and rapid assembly, and solves the problems of slow assembly speed and unstable structure.

[0006] (II) Technical solution

[0007] In order to achieve the above-mentioned stable fixation and rapid assembly purpose, the utility model provides the following technical solutions: a dry-type air-core current-limiting reactor, comprising a reactor and a limiting component, wherein the limiting component is arranged on the outside of the reactor;

[0008] Four engaging shafts are fixedly installed on the upper and lower sides of the reactor, a limiting column is fixedly installed between two adjacent reactors, and a cover is provided on the upper and lower sides of the center of the reactor;

[0009] The limiting component comprises a clamping shell, which is fixedly mounted on the outer side of the limiting column, and the side surface of the clamping shaft is provided with a clamping member which can be clamped on the inner side of the clamping shell.

[0010] As a preferred technical solution of the utility model, four equally spaced engaging shafts are fixed to the bottom of the reactor located below, the bottoms of the four engaging shafts are threadedly connected with threaded columns, and the bottoms of the four threaded columns are threadedly installed with support bases.

[0011] The beneficial effect of the above preferred technical solution is that the design of the threaded connection makes the installation and disassembly process simple and quick.

[0012] As a preferred technical solution of the utility model, a protective shell is fixedly installed on the outer sides of the three reactors, and a heat dissipation groove connected to the inside of the reactor is opened on the inner side of the protective shell.

[0013] The beneficial effects of the above preferred technical solution are: by installing a protective shell on the outside of the reactor and opening a heat dissipation groove, it helps to protect the equipment, optimize the heat dissipation performance and enhance safety.

[0014] As a preferred technical solution of the utility model, positioning rods are fixedly installed on the outer sides of the four locking shafts, the four positioning rods are fixedly installed on the outer side of the cover, fixed blocks are fixedly installed on the outer surfaces of the locking shafts, and conductive columns are connected in circuits between the two opposing locking shafts.

[0015] The beneficial effect of the above preferred technical solution is that through the fixing effect of the positioning rod and the fixing block, as well as the circuit connection of the conductive column, the entire structure is more stable, reducing potential safety risks caused by loose components or circuit failures.

[0016] As a preferred technical solution of the utility model, the outer surface of the snap-fit ​​shell is provided with three equally spaced coils, the outer wall side of the limit column is provided with six limit slots, and the upper and lower sides of the snap-fit ​​shell are provided with snap-fit ​​slots located inside the limit slots.

[0017] The beneficial effects of the above preferred technical solution are: the design of three equally spaced coils on the outer surface of the engaging shell helps to enhance the electromagnetic performance of the reactor, and the equally spaced arrangement of the coils ensures the uniform distribution of the electromagnetic field, thereby improving the efficiency and stability of the reactor.

[0018] As a preferred technical solution of the utility model, the engaging shaft is clamped on the inner side of the limiting slot, a limiting head is fixedly installed on the bottom of the engaging shaft, a limiting groove connected to the engaging shaft is opened on the top of the limiting head, and two relative limiting blocks are transmission-installed on the inner side of the engaging shell, the two limiting blocks can be clamped on the inner side of the limiting groove, and spring shafts are movably installed on the opposite sides of the two limiting blocks.

[0019] The beneficial effects of the above-mentioned preferred technical solution are: the clamping design of the locking shaft and the limiting slot enables the main components of the reactor to be firmly connected together and not easy to loosen or fall off. This stable connection method improves the overall structural strength of the reactor, making it more stable and reliable during operation.

[0020] (III) Beneficial effects

[0021] Compared with the prior art, the utility model provides a dry-type air-core current-limiting reactor, which has the following beneficial effects:

[0022] The dry-type air-core current-limiting reactor improves the linearity of the reactor by optimizing the coil structure and material selection, so that it can maintain stable performance under a wider range of working conditions. At the same time, it can be quickly assembled or disassembled with the help of a locking shaft and a limiting slot, so as to improve the convenience and reliability of the reactor. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the planar structure of the utility model;

[0024] Figure 2 This is a bottom view of the structure of the reactor of the utility model;

[0025] Figure 3 This is a schematic diagram of the structural limit column of the utility model;

[0026] Figure 4 This is a schematic diagram of the structure of the limiting component of the utility model.

[0027] In the figure: 1. reactor; 2. engaging shaft; 3. limiting column; 4. threaded column; 5. supporting base; 6. protective shell; 7. heat sink; 8. cover; 9. positioning rod; 10. engaging shell; 11. coil; 12. fixing block; 13. limiting slot; 14. conductive column; 15. engaging slot; 16. limiting head; 17. limiting groove; 18. limiting block; 19. spring shaft. DETAILED DESCRIPTION

[0028] 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 in 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.

[0029] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions 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 device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] See also Figure 1-4 A dry-type air-core current-limiting reactor comprises a reactor 1 and a limiting component, wherein the limiting component is arranged on the outside of the reactor 1.

[0032] Four engaging shafts 2 are fixedly installed on both upper and lower sides of the reactor 1 , a limiting column 3 is fixedly installed between two adjacent reactors 1 , and a cover 8 is provided on both upper and lower sides of the center of the reactor 1 .

[0033] The limiting component comprises a clamping shell 10 , which is fixedly mounted on the outer side of the limiting column 3 , and a side surface of the clamping shaft 2 is provided with a clamping member that can be clamped on the inner side of the clamping shell 10 .

[0034] In this embodiment, four equally spaced engaging shafts 2 are fixed to the bottom of the reactor 1 at the bottom, the bottoms of the four engaging shafts 2 are all threadedly connected with threaded columns 4, and the bottoms of the four threaded columns 4 are all threadedly installed with support bases 5.

[0035] It should be noted that the design of four equally spaced snap-fit ​​shafts 2 and threaded columns 4 makes the connection between the reactor 1 and the supporting base 5 more stable. This connection method not only increases the supporting area of ​​the bottom, but also ensures the tightness and reliability of the connection through threaded connection, thereby greatly improving the stability of the reactor 1 during operation.

[0036] In this embodiment, a protective shell 6 is fixedly mounted on the outer sides of the three reactors 1 , and a heat dissipation slot 7 communicating with the interior of the reactor 1 is formed on the inner side of the protective shell 6 .

[0037] It should be noted that the protective shell 6 can effectively protect the reactor 1 from the external environment, such as dust, moisture and other external factors that may cause damage to the equipment, which prolongs the service life of the reactor 1 and improves its operational reliability.

[0038] The design of the heat dissipation slot 7 enables the heat generated by the reactor 1 during operation to be effectively dissipated, thereby avoiding equipment performance degradation or damage due to heat accumulation. This heat dissipation design helps to improve the thermal stability and working efficiency of the reactor 1.

[0039] In this embodiment, positioning rods 9 are fixedly installed on the outer sides of the four locking shafts 2, and the four positioning rods 9 are fixedly installed on the outer side of the cover 8. Fixed blocks 12 are fixedly installed on the outer surfaces of the locking shafts 2, and conductive columns 14 are connected in circuit between the two opposing locking shafts 2.

[0040] It should be noted that the fixed connection between the locking shaft 2 and the cover 8 by the positioning rod 9 not only enhances the stability of the entire structure, but also effectively prevents loosening or displacement of components due to vibration or external impact, thereby ensuring the stable operation of the reactor 1 in a complex environment.

[0041] The circuit connection between the two opposing engaging shafts 2 is achieved through the conductive pillars 14. This design ensures the reliability and stability of the circuit connection. The conductive pillars 14 can effectively conduct current, avoiding circuit failures caused by poor contact or open circuits, and ensuring the normal operation of the reactor 1.

[0042] In this embodiment, three equally spaced coils 11 are provided on the outer surface of the snap-fit ​​shell 10 , six limit slots 13 are provided on the outer wall side of the limit column 3 , and snap-fit ​​slots 15 located inside the limit slots 13 are provided on the upper and lower sides of the snap-fit ​​shell 10 .

[0043] It should be noted that the design of three equally spaced coils 11 on the outer surface of the engaging housing 10 helps to enhance the electromagnetic performance of the reactor 1 . The equally spaced arrangement of the coils 11 ensures a uniform distribution of the electromagnetic field, thereby improving the efficiency and stability of the reactor 1 .

[0044] In this embodiment, the engaging shaft 2 is engaged with the inner side of the limiting groove 13, a limiting head 16 is fixedly installed at the bottom of the engaging shaft 2, a limiting groove 17 connected to the engaging shaft 2 is opened at the top of the limiting head 16, and two relative limiting blocks 18 are installed on the inner side of the engaging shell 10, and the two limiting blocks 18 can be engaged with the inner side of the limiting groove 17, and the opposite sides of the two limiting blocks 18 are movably installed with spring shafts 19.

[0045] It should be noted that the locking design of the locking shaft 2 and the limiting slot 13 enables the main components of the reactor 1 to be firmly connected together and not easy to loosen or fall off. This stable connection method improves the overall structural strength of the reactor 1, making it more stable and reliable during operation.

[0046] Through the cooperation between the limit head 16 and the limit groove 17, and the action of the limit block 18 and the spring shaft 19, the installation and disassembly process becomes simple and quick. This design not only improves work efficiency, but also reduces the error rate during installation and disassembly, while also ensuring the stability of the reactor 1 during operation.

[0047] The beneficial effects of the above embodiments are:

[0048] By optimizing the structure and material selection of the coil 11, the linearity of the reactor 1 is improved so that it can maintain stable performance under a wider range of working conditions. At the same time, the locking shaft 2 and the limiting slot 13 are used to achieve rapid assembly or disassembly to improve the convenience and reliability of the reactor 1.

[0049] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dry-type air-core current-limiting reactor, comprising a reactor (1) and a limiting component, wherein the limiting component is arranged outside the reactor (1); Features: Four engaging shafts (2) are fixedly mounted on both upper and lower sides of the reactor (1), a limiting column (3) is fixedly mounted between two adjacent reactors (1), and a cover (8) is provided on both upper and lower sides of the center of the reactor (1); The limiting component comprises a snap-fit ​​shell (10), wherein the snap-fit ​​shell (10) is fixedly mounted on the outside of the limiting column (3), and the side surface of the snap-fit ​​shaft (2) is provided with a snap-fit ​​inner side of the snap-fit ​​shell (10).

2. A dry-type air-core current-limiting reactor according to claim 1, characterized in that: Four equally spaced engaging shafts (2) are fixed to the bottom of the reactor (1) located below, the bottoms of the four engaging shafts (2) are all threadedly connected to threaded columns (4), and the bottoms of the four threaded columns (4) are all threadedly mounted with support bases (5).

3. A dry-type air-core current-limiting reactor according to claim 1, characterized in that: A protective shell (6) is fixedly mounted on the outside of each of the three reactors (1), and a heat dissipation groove (7) connected to the inside of the reactor (1) is provided on the inside of the protective shell (6).

4. A dry-type air-core current-limiting reactor according to claim 1, characterized in that: Positioning rods (9) are fixedly mounted on the outer sides of the four engaging shafts (2), and the four positioning rods (9) are fixedly mounted on the outer sides of the cover (8). Fixed clamping blocks (12) are fixedly mounted on the outer surfaces of the engaging shafts (2), and conductive columns (14) are connected in circuit between the opposing engaging shafts (2).

5. A dry-type air-core current-limiting reactor according to claim 1, characterized in that: The outer surface of the snap-fit ​​shell (10) is provided with three coils (11) at equal intervals, the outer wall side of the limit column (3) is provided with six limit slots (13), and the upper and lower sides of the snap-fit ​​shell (10) are provided with snap-fit ​​slots (15) located inside the limit slots (13).

6. A dry-type air-core current-limiting reactor according to claim 5, characterized in that: The engaging shaft (2) is engaged with the inner side of the limiting groove (13); a limiting head (16) is fixedly mounted on the bottom of the engaging shaft (2); a limiting groove (17) connected to the engaging shaft (2) is provided on the top of the limiting head (16); two opposite limiting blocks (18) are installed in a transmission manner on the inner side of the engaging housing (10); the two limiting blocks (18) can be engaged with the inner side of the limiting groove (17); and spring shafts (19) are movably mounted on opposite sides of the two limiting blocks (18).

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