Transformer coil inner frame

Abstract

The utility model discloses an inner frame of a transformer coil, which particularly relates to the technical field of transformer coils and comprises an inner frame body, the upper end and the lower end of the inner frame body are respectively provided with a wire end fixing device capable of clamping and fixing two ends of an electromagnetic wire, and the wire end fixing devices are used for clamping and fixing two ends of the electromagnetic wire. A stretching and tightening device capable of stretching the lower end of the electromagnetic wire is arranged on the outer surface of the lower end of the inner frame body and used for stretching the lower end of the electromagnetic wire to tighten the electromagnetic wire; the thread end fixing device comprises two fixing blocks, the two fixing blocks are fixedly arranged at the upper end of the inner frame body and the upper end of the stretching and tightening device respectively, and inserting rings are fixedly arranged at the upper ends of the fixing blocks; a thread end groove is formed in the upper end of the inner frame body. Through the arrangement of the wire end fixing device, the two ends of the electromagnetic wire can be clamped and fixed, the two ends of the electromagnetic wire can be firmly fixed, falling and loosening are avoided, and through the arrangement of the stretching and tightening device, the lower end of the electromagnetic wire can be stretched to tighten the electromagnetic wire.

Description

Technical Field

[0001] The utility model relates to the technical field of transformer coils, and more specifically, to an inner frame of a transformer coil. Background Art

[0002] A transformer is a device that uses the principle of electromagnetic induction to change AC voltage. Its main components are the primary coil, secondary coil and iron core. Its main functions include: voltage conversion, current conversion, impedance conversion, isolation, voltage stabilization, etc. The transformer coil is a kind of coil, and the transformer needs a coil to operate.

[0003] After exploration, for example, a Chinese patent application with application number CN202023174401.9 discloses an inner frame of a transformer coil. The wire winding can be made tighter and more even by cooperating with each other among a winding plate, a winding groove, a fixed rod, a fixed ring, and two telescopic springs. The electromagnetic wire can be fixed when not in use by cooperating with each other among an outlet, an inlet, a wire groove, a fixed rod, a fixed ring, a winding groove, and two rotating blocks and bearing fixed columns. The fixed ring can fix the electromagnetic wire together, so that the electromagnetic wire can be fixed more stably. The fixed block plays a role of limiting the threaded rod, and the threaded rod plays a role of pushing. The turntable can make the rotation of the threaded rod more convenient and simple, and can make the rotation of the threaded rod smoother. The splint plays a role of clamping, so that it can be more stable when fixed on the transformer. The anti-skid pad plays a role of anti-skid and stabilization. The anti-skid groove makes the anti-skid effect better by increasing the friction.

[0004] However, when the above technical solution is processed and produced, one end of the electromagnetic wire needs to be manually fixed on the fixing ring 2. After searching, it is found that copper wire is needed for the manufacture of electromagnetic wire. When producing large electromagnetic coils, the diameter of the copper wire used is generally large. Due to the elasticity of the copper wire, it is more troublesome to fix one end on the fixing ring 2. After fixation, it is easy to loosen due to the elasticity of the copper wire, and the lower end of the electromagnetic wire needs to be manually pulled to fix it, which is very troublesome. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, an embodiment of the utility model provides a transformer coil inner frame. The technical problem to be solved by the present invention is: being able to fix the end of an electromagnetic wire with a larger diameter and being able to conveniently achieve stretching and tightening of the lower end of the electromagnetic wire.

[0006] To achieve the above purpose, the utility model provides the following technical solution: a transformer coil inner frame, comprising an inner frame body:

[0007] The upper and lower ends of the inner frame body are respectively provided with wire end fixing devices capable of clamping and fixing the two ends of the electromagnetic wire, and are used to clamp and fix the two ends of the electromagnetic wire;

[0008] The outer surface of the lower end of the inner frame body is provided with a stretching and tightening device capable of stretching the lower end of the electromagnetic wire, which is used to stretch the lower end of the electromagnetic wire to tighten the electromagnetic wire;

[0009] The thread end fixing device comprises two fixing blocks, which are respectively fixedly arranged at the upper end of the inner frame body and the upper end of the tensioning and retracting device, and the upper end of the fixing block is fixedly provided with an insertion ring;

[0010] A thread end groove is provided at the upper end of the inner frame body.

[0011] In a preferred embodiment, a plurality of elastic telescopic rods are fixedly provided on the outer surface of the inner frame body, and a winding plate is fixedly provided on the movable ends of the elastic telescopic rods, and a harness groove is provided on the outer surface of the winding plate.

[0012] In a preferred embodiment, a mounting groove is provided on the inner side of the inner frame body, and mounting limit grooves are provided on both sides of the inner wall of the mounting groove.

[0013] In a preferred embodiment, a threaded sleeve is fixedly provided at the upper end of the insertion ring, a threaded rod is threadedly connected to the inner side of the threaded sleeve, a rotating end is fixedly provided at the upper end of the threaded rod, an extrusion end is fixedly provided at the lower end of the threaded rod, and the extrusion end is located on the inner side of the insertion ring.

[0014] In a preferred embodiment, the tensioning and retracting device includes a sliding groove, which is provided on the outer surface of the lower end of the inner frame body, a rotating ring is movably provided inside the sliding groove, and an oblique tooth groove is provided at the lower end of the inner frame body.

[0015] In a preferred embodiment, four spring plates are fixedly provided at the lower end of the rotating ring, and inclined blocks are fixedly provided inside the four spring plates.

[0016] In a preferred embodiment, four rotating armrests are fixedly provided on the outer surface of the rotating ring.

[0017] Technical effects and advantages of the utility model:

[0018] The utility model is provided with a wire end fixing device, which is conducive to clamping and fixing the two ends of the electromagnetic wire, and the two ends of the electromagnetic wire are firmly fixed to avoid falling off and loosening. The upper end of the electromagnetic wire is bent and inserted into the wire end groove, and the two ends of the electromagnetic wire are respectively inserted into two insertion rings. The rotating end drives the threaded rod and the extrusion end to move downward, so that the two ends of the electromagnetic wire are squeezed and fixed. The lower end of the extrusion end is provided with an anti-skid layer to avoid the fixed electromagnetic wire end from sliding, thereby achieving the effect of fixing the electromagnetic wire end.

[0019] The utility model is provided with a stretching and tightening device, which is conducive to stretching the lower end of the electromagnetic wire to tighten the electromagnetic wire and reduce the trouble of manual stretching. The rotating ring rotates in the sliding groove and drives a wire head fixing device to rotate at the same time. Since the wire head fixing device fixes the lower end of the electromagnetic wire, when the rotating ring rotates, the lower end of the electromagnetic wire can be stretched. The spring piece and the oblique block at the lower end of the rotating ring cooperate with the oblique tooth groove to achieve the effect of limited rotation and avoid the rotating ring from rotating. Since the oblique block and the oblique tooth groove are adapted, the effect of sliding in one direction and stopping in the other direction can be achieved. The whole is rotated by holding the rotating armrest to lock the electromagnetic wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0021] Figure 2 It is a side sectional view of the utility model.

[0022] Figure 3 It is a structural schematic diagram of the thread end fixing device of the utility model.

[0023] Figure 4 It is a schematic diagram of the structure of the tensioning and retracting device of the utility model.

[0024] The accompanying drawings are marked as follows: 1. inner frame body; 2. wire end fixing device; 3. tensioning device; 4. mounting groove; 5. mounting limit groove; 6. elastic telescopic rod; 7. winding plate; 8. wire harness groove; 9. wire end groove; 21. fixing block; 22. insertion ring; 23. rotating end; 24. threaded rod; 25. extrusion end; 26. threaded sleeve; 31. sliding groove; 32. oblique tooth groove; 33. rotating ring; 34. spring piece; 35. oblique block; 36. rotating armrest. DETAILED DESCRIPTION

[0025] 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 of the utility model, all other embodiments obtained by ordinary technicians in the field of transformer coils without creative work are within the scope of protection of the utility model.

[0026] like Figure 1 and 2As shown, the utility model provides a transformer coil inner frame, including an inner frame body 1: a wire end groove 9 is opened at the upper end of the inner frame body 1, a plurality of elastic telescopic rods 6 are fixedly provided on the outer surface of the inner frame body 1, winding plates 7 are fixedly provided at the movable ends of the elastic telescopic rods 6, a wire harness groove 8 is opened on the outer surface of the winding plate 7, an installation groove 4 is opened on the inner side of the inner frame body 1, and installation limit grooves 5 are opened on both sides of the inner wall of the installation groove 4.

[0027] In order to clamp and fix the two ends of the electromagnetic wire, the upper and lower ends of the inner frame body 1 are respectively provided with wire end fixing devices 2 that can clamp and fix the two ends of the electromagnetic wire, and are used to clamp and fix the two ends of the electromagnetic wire;

[0028] like Figure 3 As shown, the wire end fixing device 2 includes two fixing blocks 21, and the two fixing blocks 21 are respectively fixedly arranged on the upper end of the inner frame body 1 and the upper end of the tensioning and retracting device 3, an insertion ring 22 is fixedly arranged on the upper end of the fixing block 21, a threaded sleeve 26 is fixedly arranged on the upper end of the insertion ring 22, a threaded rod 24 is threadedly connected to the inner side of the threaded sleeve 26, a rotating end 23 is fixedly arranged on the upper end of the threaded rod 24, an extrusion end 25 is fixedly arranged on the lower end of the threaded rod 24, the extrusion end 25 is located on the inner side of the insertion ring 22, the upper end of the electromagnetic wire is bent and inserted into the wire end groove 9, and the two ends of the electromagnetic wire are respectively inserted into the two insertion rings 22, and the rotating end 23 is rotated to drive the threaded rod 24 and the extrusion end 25 to move downward, so that the two ends of the electromagnetic wire are extruded and fixed, and an anti-slip layer is provided at the lower end of the extrusion end 25 to prevent the fixed electromagnetic wire end from sliding, thereby achieving the effect of fixing the electromagnetic wire end.

[0029] Furthermore, in order to stretch the lower end of the electromagnetic wire to tighten it, a tensioning and retracting device 3 capable of stretching the lower end of the electromagnetic wire is provided on the outer surface of the lower end of the inner frame body 1, and is used to stretch the lower end of the electromagnetic wire to tighten it;

[0030] like Figure 4As shown, the tensioning and retracting device 3 includes a sliding groove 31, which is arranged on the outer surface of the lower end of the inner frame body 1, and a rotating ring 33 is movably arranged inside the sliding groove 31. An oblique tooth groove 32 is arranged at the lower end of the inner frame body 1, and four spring pieces 34 are fixedly arranged at the lower end of the rotating ring 33. An oblique block 35 is fixedly arranged on the inner side of the four spring pieces 34, and four rotating armrests 36 are fixedly arranged on the outer surface of the rotating ring 33. The rotating ring 33 rotates in the sliding groove 31, and at the same time drives a thread end fixing device 2 to rotate. Because a thread end fixing device 2 fixes the lower end of the electromagnetic wire, when the rotating ring 33 rotates, the lower end of the electromagnetic wire can be stretched. The spring piece 34 and the oblique block 35 at the lower end of the rotating ring 33 cooperate with the oblique tooth groove 32 to achieve the effect of limited rotation and prevent the rotating ring 33 from rotating. Because the oblique block 35 and the oblique tooth groove 32 are adapted, the effect of sliding in one direction and stopping in another direction can be achieved. The whole is rotated by holding the rotating armrest 36 to lock the electromagnetic wire.

[0031] The working principle is as follows: when the utility model is in use, the upper end of the electromagnetic wire is auxiliary fixed by the wire end groove 9, and the upper end of the electromagnetic wire is fixed by a wire end fixing device 2 at the upper end of the utility model, and the electromagnetic wire is wound around the winding plate 7, and the electromagnetic wire is evenly distributed by the wire harness groove 8, and then supported by the elastic telescopic rod 6 to increase the tightness of the electromagnetic wire. After the winding is completed, the lower end of the electromagnetic wire is inserted into a wire end fixing device 2 at the lower end of the utility model to fix the lower end of the electromagnetic wire, and the electromagnetic wire is stretched and locked by pulling the telescopic tightening device 3 to reduce the manual stretching process.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A transformer coil inner frame, comprising an inner frame body (1), characterized in that: The upper and lower ends of the inner frame body (1) are respectively provided with wire end fixing devices (2) capable of clamping and fixing the two ends of the electromagnetic wire, and are used to clamp and fix the two ends of the electromagnetic wire; The outer surface of the lower end of the inner frame body (1) is provided with a stretching and tightening device (3) capable of stretching the lower end of the electromagnetic wire, and used for stretching the lower end of the electromagnetic wire to tighten the electromagnetic wire; The thread end fixing device (2) comprises two fixing blocks (21), the two fixing blocks (21) being fixedly arranged on the upper end of the inner frame body (1) and the upper end of the stretching and tightening device (3), respectively, and an insertion ring (22) being fixedly arranged on the upper end of the fixing block (21); A thread end groove (9) is provided at the upper end of the inner frame body (1).

2. The transformer coil inner frame according to claim 1, characterized in that: A plurality of elastic telescopic rods (6) are fixedly provided on the outer surface of the inner frame body (1), a winding plate (7) is fixedly provided on the movable ends of the elastic telescopic rods (6), and a wire harness groove (8) is provided on the outer surface of the winding plate (7).

3. The transformer coil inner frame according to claim 1, characterized in that: A mounting groove (4) is provided on the inner side of the inner frame body (1), and mounting limit grooves (5) are respectively provided on both sides of the inner wall of the mounting groove (4).

4. The transformer coil inner frame according to claim 1, characterized in that: A threaded sleeve (26) is fixedly provided at the upper end of the insertion ring (22), a threaded rod (24) is threadedly connected to the inner side of the threaded sleeve (26), a rotating end (23) is fixedly provided at the upper end of the threaded rod (24), an extrusion end (25) is fixedly provided at the lower end of the threaded rod (24), and the extrusion end (25) is located inside the insertion ring (22).

5. The transformer coil inner frame according to claim 1, characterized in that: The stretching and retracting device (3) comprises a sliding groove (31), the sliding groove (31) being formed on the outer surface of the lower end of the inner frame body (1), a rotating ring (33) being movably provided inside the sliding groove (31), and an oblique tooth groove (32) being formed at the lower end of the inner frame body (1).

6. The transformer coil inner frame according to claim 5, characterized in that: Four spring sheets (34) are fixedly provided at the lower end of the rotating ring (33), and an oblique block (35) is fixedly provided inside the four spring sheets (34).

7. The transformer coil inner frame according to claim 5, characterized in that: Four rotating armrests (36) are fixedly provided on the outer surface of the rotating ring (33).

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