Star-delta common load reactor

Abstract

The utility model relates to the field of load reactor, especially star delta commonly used load reactor, including load reactor body, the bottom of load reactor body is connected with I -shaped base through fastening assembly, I -shaped base includes two support plates, and the both sides between two support plates are symmetrically installed with support seat, and every side between two support seats is sequentially inserted with dust screen board, grating screen board, the utility model discloses, through the setting of I -shaped base cooperation detachable grating screen board and dust screen board, it is favorable to the flow of air in the bottom of load reactor, and simultaneously, part cold air is along main air hole to the air hole of auxiliary and is circulated to load reactor, and absorbs heat and becomes hot and rises, and finally is discharged from the heat dissipation port of load reactor top or side.

Description

Technical Field

[0001] This utility model relates to the field of load reactor technology, and in particular to a star-delta shared load reactor. Background Technology

[0002] The star-delta shared load reactor describes a reactor that is connected in series with the stator winding only during the star-connected startup phase in a star-delta startup circuit, and is bypassed during the switchover to delta operation phase.

[0003] The common-magnetic-circuit star-delta load reactor is a specially designed three-phase reactor, mainly used to limit harmonic currents generated by nonlinear loads. It utilizes a shared core magnetic circuit and a hybrid star-delta winding design, where the phase windings share the same core, reducing material usage, minimizing size, and lowering manufacturing costs. Simultaneously, the star winding blocks the third harmonic from entering the grid, while the delta winding provides a circulating current path. The third harmonic flux generated by both in the shared magnetic circuit cancels each other out, completely eliminating the risk of core saturation. Furthermore, the magnetic circuit symmetry ensures the consistency of three-phase inductance, providing strong anti-imbalance capability and stable harmonic suppression.

[0004] The existing star-delta shared load reactors mostly have enclosed bases, lacking directional airflow design. Cold air cannot reach the core heat-generating area directly, and the enclosed bases block the natural intake of cold air from the bottom, causing hot air to accumulate at the top and form a "thermal barrier," which disrupts the natural convection circulation. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a star-delta shared load reactor.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A star-delta shared load reactor includes a load reactor body. The bottom of the load reactor body is connected to an I-shaped base via a fastening assembly. The I-shaped base includes two support plates. Support seats are symmetrically installed on both sides between the two support plates. A dustproof mesh plate and a grid mesh plate are sequentially inserted into each side between the two support seats. Multiple mounting protrusions are installed at equal intervals at the top and bottom of the dustproof mesh plate and the grid mesh plate. Mounting grooves are opened on both sides of the support plate at the corresponding mounting protrusions.

[0008] Limiting components are slidably provided on both sides of the two support plates, and the dustproof mesh plate, the grid mesh plate and the adjacent support plate are all limited by the limiting components;

[0009] The top center of the I-shaped base is provided with multiple main vent holes at equal intervals, and the bottom of the base of the load reactor body is provided with auxiliary vent holes at the main vent holes.

[0010] In addition, in a preferred configuration, the limiting component includes a slide bar, the top of which is connected to an I-shaped insert rod via a connecting block at the corresponding mounting groove, and a handle is connected to one side of the top of the slide bar via an extension rod.

[0011] In addition, a preferred structure is that the support plate has a main sliding groove at the sliding rod, and the support plate has auxiliary sliding grooves at the connecting block and the I-shaped insert rod, and a limit sliding groove is provided at the extension rod.

[0012] In addition, a preferred structure is that a magnetically attracted limiting plug is magnetically attached to the support plate at the limiting groove and on one side of the slide rod, and the magnetically attracted limiting plug is located on the side away from the support plate.

[0013] Furthermore, in a preferred configuration, the magnetic locating stopper includes a magnetic block, with a handle block and a locating rod respectively installed at both ends of the magnetic block, and the width of the locating rod is the same as the width of the locating groove, while the width of the magnetic block is greater than the width of the locating groove.

[0014] In addition, a preferred structure is that a magnetic groove is provided in the support plate at the magnetic block, the inner wall of the magnetic groove is provided with a magnetic material that attracts the magnetic block, and multiple mounting holes are provided at equal intervals on both sides of the support plate.

[0015] The beneficial effects of this utility model are as follows:

[0016] In this invention, the combination of the I-shaped base with the detachable grid and dustproof mesh facilitates airflow at the bottom of the load reactor. At the same time, some of the cold air flows into the load reactor through the main vent and the auxiliary vent, absorbs heat, rises, and is finally discharged from the heat dissipation vents on the top or side of the load reactor. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a star-delta shared load reactor proposed in this utility model;

[0018] Figure 2 for Figure 1 Enlarged structural diagram at point A;

[0019] Figure 3 This is a schematic diagram showing the disassembled structure of a star-delta shared load reactor proposed in this utility model;

[0020] Figure 4 for Figure 3 A structural schematic diagram of the enlarged split cross-section at point B;

[0021] Figure 5 This is a schematic diagram of the cross-section of a star-delta shared load reactor proposed in this utility model.

[0022] Figure 6 for Figure 5 Enlarged structural diagram at point C;

[0023] Figure 7 for Figure 5 Enlarged structural diagram at point D.

[0024] In the diagram: 1. Load reactor body; 2. I-shaped base; 31. Grille; 32. Dustproof mesh; 33. Mounting protrusion; 4. Magnetic limit plug; 5. Limiting component; 51. Slide rod; 52. Connecting block; 53. I-shaped insert rod; 54. Handle. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Reference Figure 1-7 A star-delta shared load reactor includes a load reactor body 1. The bottom of the load reactor body 1 is connected to an I-shaped base 2 via a fastening assembly. The I-shaped base 2 includes two support plates. Support seats are symmetrically installed on both sides between the two support plates. A dustproof mesh plate 32 and a grid mesh plate 31 are sequentially inserted into each side between the two support seats. Multiple mounting protrusions 33 are installed at equal distances at the top and bottom of the dustproof mesh plate 32 and the grid mesh plate 31. Mounting grooves are opened on both sides of the support plate at the corresponding mounting protrusions 33.

[0027] Limiting components 5 are slidably installed on both sides of the two support plates. The dustproof mesh plate 32 and the grid mesh plate 31 are limited by the limiting components 5 with the adjacent support plates. Multiple main vent holes are opened at equal intervals at the top center of the I-shaped base 2, and auxiliary vent holes are opened at the bottom of the base of the load reactor body 1 at the main vent holes.

[0028] Meanwhile, the limiting component 5 includes a slide bar 51, the top of which is connected to an I-shaped insert rod 53 via a connecting block 52 at the corresponding mounting groove, and a handle part 54 is connected to one side of the top of the slide bar 51 via an extension rod.

[0029] Furthermore, a main sliding groove is provided in the support plate at the sliding rod 51, and auxiliary sliding grooves are provided in the support plate at the connecting block 52 and the I-shaped insert rod 53. A limit sliding groove is provided in the support plate at the extension rod.

[0030] Meanwhile, a magnetic limit plug 4 is magnetically attached to the support plate at the limit groove and on one side of the slide rod 51, and the magnetic limit plug 4 is located on the side away from the support plate.

[0031] Furthermore, the magnetic limit plug 4 includes a magnetic block, with a handle block and a limit rod respectively installed at both ends of the magnetic block, and the width of the limit rod is the same as the width of the limit groove, while the width of the magnetic block is greater than the width of the limit groove.

[0032] Furthermore, a magnetic groove is provided inside the support plate at the magnetic block, and the inner wall of the magnetic groove is provided with a magnetic material that attracts the magnetic block. Multiple mounting holes are provided at equal intervals on both sides of the support plate.

[0033] Meanwhile, the mounting protrusions 33 of the dustproof mesh plate 32 and the grid mesh plate 31 are all provided with insertion holes at the corresponding I-shaped insertion rods 53.

[0034] It is worth noting that the load reactor body 1 includes a base, and auxiliary holes are provided on both sides of the base at the mounting holes of the support plate. The specific structure, connection method and working principle of the fastening components are all existing technologies that are currently publicly available, so they will not be described in detail. At the same time, the top or side of the load reactor is pre-set with heat dissipation vents (not shown in detail in the figure).

[0035] Furthermore, the specific structure, connection method, and working principle of the load reactor body 1 are all based on the commercially available "common magnet star delta load reactor", so they will not be elaborated further.

[0036] Meanwhile, multiple auxiliary seats are installed at equal distances between the two support plates and between the two support seats, and when the dustproof mesh plate 32 is inserted into the I-shaped base 2, one end of it is attached to the auxiliary seat.

[0037] Meanwhile, it is worth noting that sealing gaskets (not shown in detail in the figure) are fixedly embedded on the top of the I-shaped base 2, the outside of the grid plate 31, and the outside of the dustproof mesh plate 32, and the outer end face of the sealing gasket is flush with the corresponding end face of the top of the I-shaped base 2, the outside end face of the grid plate 31, and the outside end face of the dustproof mesh plate 32.

[0038] In this embodiment, the mounting holes of the I-shaped base 2 are aligned with the auxiliary holes of the base, and fastened together with fastening components to connect the load reactor body 1 to the I-shaped base 2. Then, the dustproof mesh plate 32 and the grid mesh plate 31 are aligned with the mounting slots and inserted in sequence. When inserting the dustproof mesh plate 32 and the grid mesh plate 31, ensure that the insertion hole of the mounting protrusion 33 of the dustproof mesh plate 32 faces the insertion hole of the mounting protrusion 33 of the grid mesh plate 31, and insert the dustproof mesh plate 32 first. At the same time, before insertion, ensure that one end of the I-shaped insertion rod 53 is far away from the adjacent mounting slot.

[0039] After insertion, hold the handle 54 and move it towards the center of the support plate, so that the extension rod slides towards one side of the center of the support plate in the limiting groove, and one end of the I-shaped insertion rod 53 passes through the insertion hole of the adjacent mounting protrusion 33 in sequence, thereby limiting the mounting protrusion 33, and limiting the grid plate 31 and dustproof mesh plate 32. Then, align the magnetic limiting plug with its magnetic groove and insert it for magnetic connection, thereby preventing the slide rod from sliding.

[0040] Among them, the adjacent support seats and auxiliary seats of the I-shaped base 2 or the two adjacent auxiliary seats form a flow cavity, which is conducive to the flow of air. At the same time, when the cold air flows into the flow cavity, some of the cold air flows into the load reactor along the main vent to the auxiliary vent. The cold air absorbs heat, becomes hot and rises, and is discharged from the heat dissipation port preset on the top or side of the load reactor.

[0041] Meanwhile, the grid plate 31 blocks larger lint or insects, preventing them from entering the reactor through the space under the base or getting tangled at the bottom. At the same time, the dustproof mesh plate 32 blocks some dust, preventing it from entering the reactor through the space under the base.

[0042] In this utility model, the combination of the I-shaped base 2 with the detachable grid plate 31 and dustproof mesh plate 32 facilitates the airflow at the bottom of the load reactor. At the same time, some cold air flows into the load reactor through the main vent and the auxiliary vent, absorbs heat and rises, and is finally discharged from the heat dissipation port set on the top or side of the load reactor.

[0043] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A star-delta shared load reactor, comprising a load reactor body (1), characterized in that, The bottom of the load reactor body (1) is connected to an I-shaped base (2) by a fastening assembly. The I-shaped base (2) includes two support plates. Support seats are symmetrically installed on both sides between the two support plates. Dustproof mesh plate (32) and grid mesh plate (31) are inserted sequentially on each side between the two support seats. Multiple mounting protrusions (33) are installed at equal distances at the top and bottom of the dustproof mesh plate (32) and grid mesh plate (31). Mounting grooves are opened on both sides of the support plate at the corresponding mounting protrusions (33). Limiting components (5) are slidably provided on both sides of the two support plates. The dustproof mesh plate (32), the grid mesh plate (31) and the adjacent support plate are all limited by the limiting components (5). The top center of the I-shaped base (2) is provided with multiple main vent holes at equal intervals, and the bottom of the base of the load reactor body (1) is provided with auxiliary vent holes at the main vent holes.

2. The star-delta shared load reactor according to claim 1, characterized in that, The limiting component (5) includes a slide rod (51), the top of the slide rod (51) is connected to an I-shaped insert rod (53) via a connecting block (52) at the corresponding mounting groove, and a handle (54) is connected to one side of the top of the slide rod (51) via an extension rod.

3. A star-delta shared load reactor according to claim 1, characterized in that, The support plate has a main sliding groove at the sliding rod (51), and auxiliary sliding grooves are provided at the connecting block (52) and the I-shaped insert rod (53). A limit sliding groove is provided at the extension rod in the support plate.

4. A star-delta shared load reactor according to claim 1, characterized in that, A magnetic limiting plug (4) is magnetically attached to the support plate at the limiting groove and on the side of the slide rod (51), and the magnetic limiting plug (4) is located on the side away from the support plate.

5. A star-delta shared load reactor according to claim 4, characterized in that, The magnetic limiting plug (4) includes a magnetic block, with a handle block and a limiting rod installed at both ends of the magnetic block, and the width of the limiting rod is the same as the width of the limiting groove, while the width of the magnetic block is greater than the width of the limiting groove.

6. A star-delta shared load reactor according to claim 1, characterized in that, The support plate has a magnetic groove located at the magnetic block, and the inner wall of the magnetic groove is provided with a magnetic material that attracts the magnetic block. Multiple mounting holes are also provided at equal intervals on both sides of the support plate.

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