A cylindrical coil structure with enhanced short circuit resistance

Abstract

The application discloses a cylinder coil structure with reinforced short-circuit resistance, which comprises a winding cylinder and a low-voltage coil arranged on the outer periphery of the winding cylinder. The top and bottom of one side of the winding cylinder are rotatably connected with linkage rods. One end of the linkage rod is rotatably connected with a first threaded rod. The upper and lower parts of the winding cylinder are provided with extrusion strips. The application relates to the technical field of transformers. The cylinder coil structure with reinforced short-circuit resistance is used to wind the low-voltage coil. After the winding is completed, the extrusion strips are parallel to the winding cylinder by rotating the extrusion strips. Meanwhile, the first spring rod is inserted into the limiting sleeve. The first threaded sleeve is lowered by rotating the first threaded rod. The extrusion strips are driven by the first threaded sleeve to lower the reading card groove. The reading card groove limits and fixes the low-voltage coil. The number of turns of the low-voltage coil is read by the reading ruler. The operation is simple, convenient and fast. Moreover, the number of turns does not need to be counted manually, so that the accuracy of worker construction is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of transformer, in particular to a cylindrical coil structure with enhanced short circuit resistance. BACKGROUND

[0002] Among many transformer winding structures, cylindrical winding is the simplest winding form, which is divided into single-layer, double-layer and multi-layer cylindrical winding.

[0003] The existing cylindrical coil structure mostly needs manual counting to check the number of turns after winding, which is relatively troublesome and prone to error. The existing cylindrical coil structure mostly uses insulating paper for interlayer insulation, but the short circuit resistance of the insulating paper is generally poor, and the outgoing line head lacks fixation during winding, resulting in poor stability of the outgoing line head and affecting the service life of the coil. SUMMARY

[0004] (I) Technical problems solved

[0005] In view of the shortcomings of the prior art, the present application provides a cylindrical coil structure with enhanced short circuit resistance, which solves the problems of manual counting to check the number of turns, poor short circuit resistance of insulating paper and lack of fixation of the outgoing line head.

[0006] (II) Technical solutions

[0007] To achieve the above purpose, the present application is implemented by the following technical solutions: a cylindrical coil structure with enhanced short circuit resistance, comprising a winding drum and a low-voltage coil arranged on the outer periphery of the winding drum, the top and bottom of one side of the winding drum are rotatably connected with a linkage rod, one end of the linkage rod is rotatably connected with a first threaded rod, the upper and lower parts of the winding drum are provided with an extrusion strip, the outer surface of the extrusion strip is fixedly connected with a first threaded sleeve, the inner surface of the first threaded sleeve is threadedly connected with the outer surface of the first threaded rod, the outer surface of the extrusion strip is provided with a reading card slot matched with the low-voltage coil on the side close to the winding drum, the outer surface of the reading card slot is fixedly connected with a reading scale matched with the reading card slot, and one side of the extrusion strip is provided with a clamping mechanism.

[0008] Preferably, the clamping mechanism comprises a first spring rod and a first spring, one end of the first spring rod penetrates through the extrusion strip and extends to the outside of the extrusion strip, and the outer surface of the first spring rod is sleeved with the first spring.

[0009] Preferably, the outer surface of the limiting sleeve is fixedly connected with the other side of the winding drum, and the outer surface of the first spring rod is slidably connected with the inner surface of the limiting sleeve.

[0010] Preferably, the outer surface of the low-voltage coil is wrapped with a compression tape, the outer surface of the compression tape is wrapped with a high-voltage coil, and the outer surface of the high-voltage coil is provided with an epoxy glass adhesive tape.

[0011] Preferably, one side of the bobbin is fixedly connected with a second threaded sleeve, the number of the second threaded sleeve is two, the inner surface of the second threaded sleeve is threadedly connected with a second threaded rod, and the opposite ends of the two second threaded rods are rotatably connected with rubber plates.

[0012] Preferably, the top and bottom of one side of the bobbin are fixedly connected with limiting blocks, the limiting blocks are provided with pin grooves on one side, the pin grooves are slidably connected with connecting strips, the outer surface of the connecting strips is penetrated and slidably connected with second spring rods, the outer surface of the second spring rods is sleeved with second springs, and the side of the extrusion strip is provided with vertical limiting holes matched with the second spring rods.

[0013] Preferably, the top and bottom of the connecting strip are fixedly connected with third spring rods, the outer surface of the third spring rods is slidably connected with connecting plates, the outer surface of the third spring rods is sleeved with third springs, the outer surface of the connecting plates is fixedly connected with protrusions, and the outer surface of the limiting block is provided with grooves matched with the protrusions.

[0014] Preferably, the two sides of the low-voltage coil and the high-voltage coil are fixedly connected with end insulations, and the inner surface of the end insulations is fixedly connected with the outer surface of the bobbin.

[0015] (Three) beneficial effects

[0016] The application provides a cylindrical coil structure with enhanced short-circuit resistance.

[0017] (1) The cylindrical coil structure with enhanced short-circuit resistance, through the arrangement of the bobbin, the low-voltage coil, the linkage rod, the first threaded rod, the extrusion strip, the first threaded sleeve, the reading card slot, the reading ruler and the clamping mechanism, after the low-voltage coil is wound, the extrusion strip is parallel to the bobbin by rotating the extrusion strip, the first spring rod is inserted into the limiting sleeve, the first threaded sleeve is lowered by rotating the first threaded rod, the extrusion strip is driven by the first threaded sleeve to lower the reading card slot, the reading card slot limits and fixes the low-voltage coil, the number of the low-voltage coil is read by the reading ruler, the operation is simple, convenient and fast, and manual counting and reading of the number of turns are not required, thereby increasing the accuracy of worker construction.

[0018] (2) The reinforced anti-short-circuit cylindrical coil structure, a second threaded sleeve is fixedly connected to one side of the winding drum, the number of the second threaded sleeve is two, a second threaded rod is threadedly connected to the inner surface of the second threaded sleeve, and the opposite ends of the two second threaded rods are rotatably connected with rubber plates, when winding the low-voltage coil, the outgoing wire head is placed between the two rubber plates, the second threaded rod is rotated to drive the two rubber plates to approach each other, so as to clamp and fix the outgoing wire head, thereby increasing the stability of the outgoing wire head, facilitating the winding operation of workers, and prolonging the service life of the coil.

[0019] (3) The reinforced anti-short-circuit cylindrical coil structure, a second threaded sleeve is fixedly connected to one side of the winding drum, the number of the second threaded sleeve is two, a second threaded rod is threadedly connected to the inner surface of the second threaded sleeve, and the opposite ends of the two second threaded rods are rotatably connected with rubber plates, when winding the low-voltage coil, the outgoing wire head is placed between the two rubber plates, the second threaded rod is rotated to drive the two rubber plates to approach each other, so as to clamp and fix the outgoing wire head, thereby increasing the stability of the outgoing wire head, facilitating the winding operation of workers, and prolonging the service life of the coil. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is an external structure schematic diagram of the application;

[0021] Figure 2 It is an internal structure schematic diagram of the application;

[0022] Figure 3 It is a winding drum, second threaded sleeve, second threaded rod and rubber plate structure connection schematic diagram of the application;

[0023] Figure 4 It is a partial enlarged schematic diagram of A in the application; Figure 2

[0024] Figure 5 It is a partial enlarged schematic diagram of B in the application; Figure 2

[0025] In the figure, 1 is a winding drum; 2 is a low-voltage coil; 3 is a linkage rod; 4 is a first threaded rod; 5 is an extrusion strip; 6 is a first threaded sleeve; 7 is a reading card slot; 8 is a reading ruler; 9 is a clamping mechanism; 10 is a first spring rod; 11 is a first spring; 12 is a limiting sleeve; 13 is a tight belt; 14 is a high-voltage coil; 15 is an epoxy glass adhesive tape; 18 is a second threaded sleeve; 19 is a second threaded rod; 20 is a rubber plate; 21 is a limiting block; 22 is a pin slot; 23 is a connecting strip; 24 is a second spring rod; 25 is a second spring; 26 is a third spring rod; 27 is a third spring; 28 is a connecting plate; 29 is a protruding block; 30 is a recess; 31 is a vertical limiting hole; and 32 is an end insulation. DETAILED DESCRIPTION

[0026] ​​With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0027] Please refer to Figures 1-5 The embodiment of the present application provides a technical solution: a cylindrical coil structure with enhanced short-circuit resistance, comprising a winding drum 1 and a low-voltage coil 2 arranged on the outer periphery of the winding drum 1, a linkage rod 3 rotatably connected to the top and bottom of one side of the winding drum 1, a first threaded rod 4 rotatably connected to one end of the linkage rod 3, an extrusion strip 5 arranged above and below the winding drum 1, a first threaded sleeve 6 fixedly connected to the outer surface of the extrusion strip 5, the inner surface of the first threaded sleeve 6 being threadedly connected to the outer surface of the first threaded rod 4, a reading slot 7 adapted to the low-voltage coil 2 being formed in the outer surface of the extrusion strip 5 near one side of the winding drum 1, a reading scale 8 adapted to the reading slot 7 being fixedly connected to the outer surface of the reading slot 7, one reading slot 7 corresponding to one number of the reading scale 8, a clamping mechanism 9 arranged on one side of the extrusion strip 5, the reading slot 7 making the number of turns of the low-voltage coil 2 correspond to the numbers of the reading scale 8, and the reading slot 7 making the spacing between the coils equal, so that the winding of the coils is more standard, the clamping mechanism 9 comprising a first spring rod 10 and a first spring 11, one end of the first spring rod 10 penetrating through the extrusion strip 5 and extending to the outside of the extrusion strip 5, the first spring 11 being sleeved on the outer surface of the first spring rod 10, the outer surface of a limiting sleeve 12 being fixedly connected to the other side of the winding drum 1, the outer surface of the first spring rod 10 being slidably connected to the inner surface of the limiting sleeve 12, end insulations 32 being fixedly connected to the two sides of the low-voltage coil 2 and a high-voltage coil 14, the inner surface of the end insulation 32 being fixedly connected to the outer surface of the winding drum 1, after the low-voltage coil 2 is wound, the extrusion strip 5 is rotated to make the extrusion strip 5 parallel to the winding drum 1, at the same time, the first spring rod 10 is inserted into the limiting sleeve 12, the first threaded rod 4 is rotated to make the first threaded sleeve 6 descend, the first threaded sleeve 6 drives the extrusion strip 5 to make the reading slot 7 descend, the reading slot 7 limits and fixes the low-voltage coil 2, the number of turns of the low-voltage coil 2 is read by the reading scale 8, the operation is simple, convenient and fast, and manual counting and reading of the number of turns are not required, thereby increasing the accuracy of worker construction.

[0028] Further, the outer surface of the low-voltage coil 2 is wound with a tight band 13, the outer surface of the tight band 13 is wound with the high-voltage coil 14, the outer surface of the high-voltage coil 14 is provided with an epoxy glass adhesive tape 15, a layer of tight band 13 is wound outside the low-voltage coil 2, a layer of epoxy glass adhesive tape 15 is added outside the high-voltage coil 14, the epoxy glass adhesive tape 15 is dried and solidified to strengthen the radial short-circuit resistance of the coil.

[0029] Further, one side of the winding drum 1 is fixedly connected with a second threaded sleeve 18, the number of the second threaded sleeve 18 is two, the inner surface of the second threaded sleeve 18 is threadedly connected with a second threaded rod 19, the opposite ends of the two second threaded rods 19 are rotatably connected with rubber plates 20, when winding the low-voltage coil 2, the outgoing wire head is placed between the two rubber plates 20, the second threaded rod 19 is rotated to drive the two rubber plates 20 to approach each other, so as to clamp and fix the outgoing wire head, thereby increasing the stability of the outgoing wire head, which not only facilitates the winding operation of the worker, but also increases the service life of the coil.

[0030] Further, the top and bottom of one side of the winding drum 1 are fixedly connected with limiting blocks 21, the side of the limiting block 21 is provided with a pin groove 22, the inner surface of the pin groove 22 is slidably connected with a connecting strip 23, the outer surface of the connecting strip 23 penetrates and is slidably connected with a second spring rod 24, the outer surface of the second spring rod 24 is sleeved with a second spring 25, one side of the pressing strip 5 is provided with a vertical limiting hole 31 matched with the second spring rod 24, the top and bottom of the connecting strip 23 are fixedly connected with third spring rods 26, the outer surface of the third spring rod 26 is slidably connected with a connecting plate 28, the outer surface of the third spring rod 26 is sleeved with a third spring 27, the outer surface of the connecting plate 28 is fixedly connected with a protruding block 29, the outer surface of the limiting block 21 is provided with a groove 30 matched with the protruding block 29, the connecting plate 28 is pulled to drive the protruding block 29 to move away from the groove 30, the connecting strip 23 is pulled to move away from the pin groove 22, so as to disassemble the connecting strip 23, which is simple and convenient to operate, and makes the connecting strip 23 can be repeatedly used, thereby reducing the waste of materials.

[0031] When working, the first spring rod 10 is pulled to drive the first spring 11 to extend, and the first spring rod 10 is separated from the limiting sleeve 12, and then the extrusion strip 5 is rotated by 90 degrees. When the extrusion strip 5 rotates, the extrusion strip 5 extrudes the second spring rod 24 to make the second spring 25 extend. When the second spring rod 24 is matched with the vertical limiting hole 31, the second spring 25 is contracted to drive the second spring rod 24 to be inserted into the vertical limiting hole 31, so as to limit and fix the extrusion strip 5, which is convenient for workers to carry out winding work. When winding the low-voltage coil 2, the outgoing wire head is placed between the two rubber plates 20, the second threaded rod 19 is rotated to drive the two rubber plates 20 to approach each other, so as to clamp and fix the outgoing wire head. After the low-voltage coil 2 is wound, the extrusion strip 5 is rotated to make the extrusion strip 5 parallel to the bobbin 1, and then the first spring rod 10 is inserted into the limiting sleeve 12, and then the first threaded rod 4 is rotated to make the first threaded sleeve 6 descend, the first threaded sleeve 6 drives the extrusion strip 5 to make the reading card slot 7 descend, so that the low-voltage coil 2 enters the reading card slot 7, and the number of turns of the low-voltage coil 2 is read through the reading scale 8 on the extrusion strip 5. After reading is completed, the extrusion strip 5 is rotated by 90 degrees to be vertical, and a layer of tight belt 13 is wound outside the low-voltage coil 2, and then the high-voltage coil 14 is wound. After the high-voltage coil 14 is wound, the extrusion strip 5 is rotated to be parallel to the bobbin 1, and the number of turns of the high-voltage coil 14 is read through the reading scale 8. After reading is completed, the extrusion strip 5 is rotated by 90 degrees to be vertical, and a layer of epoxy glass adhesive tape 15 is fixed outside the high-voltage coil 14. The extrusion strip 5 is rotated to be parallel to the bobbin 1, the first threaded rod 4 is rotated to make the first threaded sleeve 6 descend, and the first threaded sleeve 6 drives the extrusion strip 5 to extrude the coil, so as to increase the stability of the coil. Finally, the connecting plate 28 is pulled to drive the protruding block 29 to be away from the groove 30, and the connecting strip 23 is pulled to be away from the pin slot 22, so as to disassemble the connecting strip 23.

[0032] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A cylindrical coil structure having enhanced short circuit resistance, comprising a bobbin (1) and a low voltage coil (2) provided at the outer periphery of the bobbin (1), characterized in that: The top and bottom of one side of the winding drum (1) are rotationally connected with linkage rods (3), one end of the linkage rod (3) is rotationally connected with a first threaded rod (4), the upper and lower parts of the winding drum (1) are provided with extrusion strips (5), the outer surface of the extrusion strip (5) is fixedly connected with a first threaded sleeve (6), the inner surface of the first threaded sleeve (6) is threadedly connected with the outer surface of the first threaded rod (4), the outer surface of the extrusion strip (5) is provided with a reading card slot (7) which is adapted to the low-voltage coil (2) and is located near the side of the winding drum (1), the outer surface of the reading card slot (7) is fixedly connected with a reading ruler (8) which is adapted to the reading card slot (7), one side of the extrusion strip (5) is provided with a clamping mechanism (9). The clamping mechanism (9) comprises a first spring rod (10) and a first spring (11), one end of the first spring rod (10) penetrates through the extrusion strip (5) and extends to the outside of the extrusion strip (5), and the outer surface of the first spring rod (10) is sleeved with the first spring (11). The other side of the winding drum (1) is fixedly connected with a limiting sleeve (12), and the outer surface of the first spring rod (10) is slidably connected with the inner surface of the limiting sleeve (12).

2. A cylindrical coil structure with enhanced short circuit resistance according to claim 1, characterized in that: The outer surface of the low-voltage coil (2) is wound with a tight belt (13), the outer surface of the tight belt (13) is wound with a high-voltage coil (14), and the outer surface of the high-voltage coil (14) is provided with an epoxy glass adhesive tape (15).

3. A cylindrical coil structure with enhanced short circuit resistance according to claim 1, characterized in that: One side of the winding drum (1) is fixedly connected with a second threaded sleeve (18), the number of the second threaded sleeve (18) is two, the inner surface of the second threaded sleeve (18) is threadedly connected with a second threaded rod (19), and opposite ends of the two second threaded rods (19) are rotationally connected with rubber plates (20).

4. A cylindrical coil structure with enhanced short circuit resistance according to claim 1, characterized in that: The top and bottom of one side of the winding drum (1) are fixedly connected with limiting blocks (21), one side of the limiting block (21) is provided with a pin slot (22), the inner surface of the pin slot (22) is slidably connected with a connecting strip (23), the outer surface of the connecting strip (23) penetrates through and is slidably connected with a second spring rod (24), the outer surface of the second spring rod (24) is sleeved with a second spring (25), and one side of the extrusion strip (5) is provided with a vertical limiting hole (31) which is adapted to the second spring rod (24).

5. A cylindrical coil structure with enhanced short circuit resistance according to claim 4, characterized in that: The top and bottom of the connecting strip (23) are fixedly connected with third spring rods (26), the outer surface of the third spring rod (26) is slidably connected with a connecting plate (28), the outer surface of the third spring rod (26) is sleeved with a third spring (27), the outer surface of the connecting plate (28) is fixedly connected with a protruding block (29), and the outer surface of the limiting block (21) is provided with a groove (30) which is adapted to the protruding block (29).

6. A cylindrical coil structure with enhanced short circuit resistance according to claim 2, characterized in that: The two sides of the low-voltage coil (2) and the high-voltage coil (14) are fixedly connected with end insulations (32), and the inner surface of the end insulation (32) is fixedly connected with the outer surface of the winding drum (1).

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