Overlapped current transformer iron core

Abstract

The utility model discloses an overlapping type current transformer iron core in the technical field of transformer iron cores, which comprises a transformer iron core and a connecting sleeve block, the transformer iron core is formed by overlapping a plurality of iron core sheets, the center of the connecting sleeve block is fixedly provided with three sheathing grooves, and the number of the sheathing grooves is three. Mutual inductor iron cores are oppositely inserted into the two sides of the sleeving groove, the upper end of the sleeving groove is sleeved with a locking screw in a threaded mode, the lower end of the locking screw is fixedly connected with a protection pad, clamping plate devices are clamped to the two sides of the mutual inductor iron cores, and heat dissipation devices are fixedly connected to the outer sides of the clamping plate devices. According to the arrangement, a plug-in fastening mode is adopted, iron chips of different numbers can be fixed, the two sides are further clamped through the clamping plates, the whole is more stable, the whole can be rapidly cooled through the cooling devices arranged on the side faces of the clamping plates, and the efficiency is better.

Description

Technical Field

[0001] The utility model belongs to the technical field of transformer cores, and in particular relates to a laminated current transformer core. Background Art

[0002] A transformer is a device that converts voltage or current in proportion. The function of a transformer is to convert high voltage or large current into standard low voltage or standard small current in proportion, so as to achieve standardization and miniaturization of measuring instruments, protection equipment and automatic control equipment. The transformer core is one of the important components of the transformer.

[0003] The existing transformer cores are usually directly welded together during assembly, which is a fixed form and inconvenient to disassemble and assemble. Recycling is difficult, and the welding method is rigid and the number of core pieces cannot be adjusted. It is not flexible enough and has certain limitations. Utility Model Content

[0004] The purpose of the utility model is to provide a laminated current transformer core to solve the problem that the existing transformer cores are usually directly welded together during assembly, which is a fixed form, inconvenient to disassemble and assemble, and difficult to recycle. In addition, the welding method is rigid, the number of iron cores cannot be adjusted, and it is not flexible enough and has certain limitations.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a laminated current transformer core, comprising a transformer core and a connecting sleeve block, wherein the transformer core is formed by stacking a plurality of iron sheets, a sleeve groove is fixed at the center of the connecting sleeve block, and the number of the sleeve grooves is three. The transformer core is inserted on both sides of the sleeve groove, and the upper end of the sleeve groove is threadedly sleeved with a locking screw, and the lower end of the locking screw is fixedly connected to a protective pad, and clamping plate devices are clamped on both sides of the transformer core, and a heat dissipation device is fixedly connected to the outer side of the clamping plate device.

[0006] Preferably, the heat dissipation device comprises a heat dissipation plate, a groove and a heat dissipation fan. The surface of the heat dissipation plate is provided with heat dissipation fins. The center of the heat dissipation plate is fixedly provided with a groove. The interior of the groove is fixedly connected with a heat dissipation fan.

[0007] Preferably, the clamping plate device comprises a fixed plate, a bottom plate and an upper clamping plate, the inner side of the fixed plate is fixedly provided with a slide groove, the interior of the slide groove is slidably connected to the upper clamping plate, and the inner lower end of the fixed plate is fixedly connected to the bottom plate.

[0008] Preferably, a threaded rod is rotatably connected inside the slide groove, the threaded rod is threadably sleeved with the upper clamping plate, and one end of the threaded rod is fixedly connected to a rotating block.

[0009] Compared with the prior art, the beneficial effects of the utility model are:

[0010] 1. The utility model adopts a plug-in fastening method, which can fix different numbers of iron core pieces. The two sides are further clamped by clamping plates, making the whole more stable. The heat dissipation device set on the side of the clamping plate can quickly dissipate the heat of the whole, with better efficiency.

[0011] 2. The utility model can perform heat exchange through the heat sink, dissipate heat through the heat sink fins, and further dissipate heat from the transformer core and the heat sink when the internal power is turned on through the heat sink fan, thereby achieving better heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model;

[0013] Figure 2 This is a structural schematic diagram of the connection set block of the utility model;

[0014] Figure 3 It is a side structural diagram of the transformer core of the utility model;

[0015] Figure 4 It is a structural schematic diagram of the fixing plate of the utility model.

[0016] In the figure: 1. Transformer core; 2. Connecting sleeve block; 3. Sleeve groove; 4. Locking screw; 5. Protective pad; 6. Clamping plate device; 7. Heat dissipation device; 8. Cooling fan; 9. Fixed plate; 10. Bottom plate; 11. Slide groove; 12. Upper clamping plate; 13. Threaded rod; 14. Rotating block; 15. Heat dissipation plate; 16. Groove. DETAILED DESCRIPTION

[0017] 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.

[0018] See also Figure 1-4The utility model provides a technical solution: a laminated current transformer core, comprising a transformer core 1 and a connecting sleeve block 2, the transformer core 1 is formed by stacking a plurality of iron sheets, a sleeve groove 3 is fixed at the center of the connecting sleeve block 2, the number of the sleeve grooves 3 is three, the transformer core 1 is inserted on both sides of the sleeve groove 3, the upper end of the sleeve groove 3 is threadedly sleeved with a locking screw 4, the lower end of the locking screw 4 is fixedly connected with a protective pad 5, the two sides of the transformer core 1 are clamped with a clamping plate device 6, and the outer side of the clamping plate device 6 is fixedly connected with a heat dissipation device 7.

[0019] In this embodiment, the transformer core 1 is inserted into the socket groove 3 by docking, and the locking screws 4 are threadedly rotated at this time to threadably fix the transformer cores 1 inserted on both sides. Different numbers of iron cores can be fastened, which has a wide range of applications and is convenient for disassembly and adjustment. The side surfaces are further fixed by the clamping devices 6 arranged on both sides, so that the overall fixation is more stable. At the same time, the heat dissipation devices 7 arranged on both sides can quickly dissipate the heat of the transformer core 1, which facilitates the timely heat dissipation of the iron cores. This design adopts a plug-in fastening method, which can fix different numbers of iron cores. The two sides are further clamped by clamps to make the whole more stable. The heat dissipation device 7 arranged on the side of the clamp can quickly dissipate the heat of the whole, which is more efficient.

[0020] Specifically, the heat dissipation device 7 includes a heat dissipation plate 15 , a groove 16 and a heat dissipation fan 8 . The surface of the heat dissipation plate 15 is provided with heat dissipation fins. The center of the heat dissipation plate 15 is fixedly provided with a groove 16 . The interior of the groove 16 is fixedly connected with the heat dissipation fan 8 .

[0021] In this embodiment, heat exchange can be performed through the heat sink 15, and heat can be dissipated through the heat sink fins. At the same time, when the internal power is turned on, the heat sink fan 8 can further dissipate the heat of the transformer core 1 and the heat sink 15, thereby achieving a better heat dissipation effect.

[0022] Specifically, the clamping plate device 6 includes a fixed plate 9, a bottom plate 10 and an upper clamping plate 12. A slide groove 11 is fixedly opened on the inner side of the fixed plate 9. The upper clamping plate 12 is slidably connected inside the slide groove 11. The bottom plate 10 is fixedly connected to the inner lower end of the fixed plate 9.

[0023] In this embodiment, the upper clamping plate 12 can be slidably provided to be adjustable to accommodate different numbers of core sheets, and the bottom plate 10 at the lower end can be used to clamp and fix the side of the transformer core 1, which has a wide range of applications.

[0024] Specifically, a threaded rod 13 is rotatably connected inside the slide groove 11 , the threaded rod 13 is threadedly sleeved with the upper clamping plate 12 , and one end of the threaded rod 13 is fixedly connected to a rotating block 14 .

[0025] In this embodiment, the threaded rod 13 can be driven to rotate by rotating the rotating block 14. After the threaded rod 13 rotates, it rotates threadedly with the upper clamping plate 12. Since the upper clamping plate 12 slides within the slide groove 11 due to the limit, the threaded rod 13 can only drive the upper clamping plate 12 to perform threaded translation, thereby clamping the transformer core 1.

[0026] Although the 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 laminated current transformer core, comprising a transformer core (1) and a connecting sleeve (2), characterized in that: The transformer core (1) is formed by stacking a plurality of iron core sheets; a sleeve groove (3) is fixed at the center of the connection sleeve block (2); the sleeve grooves (3) are three in number; the transformer core (1) is inserted into two sides of the sleeve groove (3); a locking screw (4) is threadedly sleeved on the upper end of the sleeve groove (3); a protective pad (5) is fixedly connected to the lower end of the locking screw (4); a clamping plate device (6) is clamped on two sides of the transformer core (1); and a heat dissipation device (7) is fixedly connected to the outer side of the clamping plate device (6).

2. The laminated current transformer core according to claim 1, characterized in that: The heat dissipation device (7) comprises a heat dissipation plate (15), a groove (16) and a heat dissipation fan (8); the surface of the heat dissipation plate (15) is provided with heat dissipation fins; the center of the heat dissipation plate (15) is fixedly provided with a groove (16); the interior of the groove (16) is fixedly connected to the heat dissipation fan (8).

3. The laminated current transformer core according to claim 1, characterized in that: The clamping plate device (6) comprises a fixed plate (9), a bottom plate (10) and an upper clamping plate (12); a sliding groove (11) is fixedly provided on the inner side of the fixed plate (9); the upper clamping plate (12) is slidably connected inside the sliding groove (11); and the bottom plate (10) is fixedly connected to the inner lower end of the fixed plate (9).

4. The laminated current transformer core according to claim 3, characterized in that: A threaded rod (13) is rotatably connected inside the slide groove (11), the threaded rod (13) is threadably sleeved with the upper clamping plate (12), and one end of the threaded rod (13) is fixedly connected to a rotating block (14).

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