Temperature detection device for optical fiber winding of transformer

Abstract

The utility model discloses a transformer optical fiber winding temperature detection device which comprises a transformer body, a mounting hole is formed in the top of the transformer body, a locking bolt penetrates through a limiting groove, the limiting groove is formed in the side face of a top cover, and an optical fiber stabilizing sleeve is fixed to the center of the top cover in a penetrating mode. An optical fiber cable is installed in the center of the optical fiber stabilizing sleeve in a penetrating mode, a fluorescent optical fiber temperature sensor is fixedly installed at the bottom end of the optical fiber cable, a stabilizing hole is formed in one side of the top of the top cover in a penetrating mode, and an adjusting threaded rod is installed in the stabilizing hole in a penetrating mode and penetrates through the center of an upper C-shaped clamp; and the upper C-shaped clamp is fixedly mounted on one side of the inner wall of the mounting hole. According to the transformer optical fiber winding temperature detection device, a novel structural design is adopted, the working height of the fluorescent optical fiber temperature sensor can be conveniently adjusted and fixed to adapt to different transformer windings, the whole device can be conveniently disassembled, and maintenance operation is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of transformer temperature detection, in particular to a transformer optical fiber winding temperature detection device. Background Art

[0002] The transformer optical fiber winding temperature detection device can directly measure the hot spot temperature of the transformer's internal winding. The sensor design and communication system do not interfere with the strong electromagnetic field inside the transformer. It can be directly installed on the transformer winding and has the characteristics of direct, online, real-time and accurate measurement of the winding hot spot temperature. It can realize real-time and accurate monitoring of the "hot spot" temperature during dynamic load operation.

[0003] Existing transformer fiber optic winding temperature detection devices, such as the utility model patent application CN217865494U titled "A Power Transformer Fiber Optic Winding Temperature Detection Device," include a storage assembly and a protective assembly primarily for storing the temperature detection device. These components lack the ability to easily adjust the working position of the fiber optic temperature sensor to accommodate winding temperature detection on various transformers. Therefore, a design for a transformer fiber optic winding temperature detection device is needed to address these issues. Utility Model Content

[0004] The purpose of the present utility model is to provide a transformer optical fiber winding temperature detection device to solve the problem in the above background technology that the existing device is mainly used for storing the temperature detection device and cannot conveniently adjust the working position of the optical fiber temperature sensor to adapt to the winding temperature detection of different transformers.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a transformer optical fiber winding temperature detection device, comprising a transformer body, a mounting hole is provided on the top of the transformer body, a connecting tube is fixedly installed on the top surface of the transformer body at the edge of the mounting hole, a top cover is installed on the connecting tube, a locking bolt is fixedly installed on the top of the outer wall of the connecting tube, a locking nut is installed on the end of the locking bolt, the locking bolt passes through a limiting groove, the limiting groove is provided on the side of the top cover, an optical fiber stabilizing sleeve is fixed through the center of the top cover, an optical fiber line is installed through the center of the optical fiber stabilizing sleeve, a fluorescent optical fiber temperature sensor is fixedly installed at the bottom end of the optical fiber line, a stabilizing hole is provided through one side of the top of the top cover, an adjusting threaded rod is installed through the stabilizing hole, a positioning nut is installed on the adjusting threaded rod, the adjusting threaded rod passes through the center of an upper C-shaped card, and the upper C-shaped card is fixedly installed on one side of the inner wall of the mounting hole.

[0006] Preferably, the connecting tube and the top cover are snap-fitted together, and locking bolts are provided at equal angles on the top of the outer wall of the connecting tube relative to the center of the connecting tube.

[0007] Preferably, the locking bolt is slidably connected to the limiting groove, and the limiting grooves are evenly spaced on the side wall of the top cover.

[0008] Preferably, the inner wall of the optical fiber stabilizing sleeve is tightly fitted with the optical fiber line, and the optical fiber line and the adjusting threaded rod are distributed in parallel.

[0009] Preferably, the adjusting threaded rod is slidably connected to the stabilizing hole, and positioning nuts are symmetrically installed on the adjusting threaded rod about the center of the stabilizing hole.

[0010] Preferably, the adjusting threaded rod is slidably connected to the upper C-shaped card, a lower C-shaped card is fixed to the bottom of the adjusting threaded rod, and the lower C-shaped card is connected to the optical fiber line and the fluorescent optical fiber temperature sensor.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows: the transformer optical fiber winding temperature detection device adopts a new structural design, which not only can conveniently adjust and fix the working height of the fluorescent optical fiber temperature sensor to adapt to different transformer windings, but also can be easily disassembled as a whole, facilitating maintenance operations;

[0012] 1. The locking bolts, locking nuts and limiting grooves ensure that the top cover can be stably connected to the connecting tube and quickly disassembled, making it convenient to disassemble the top cover together with the optical fiber line, fluorescent fiber optic temperature sensor and adjusting threaded rod, so as to facilitate the maintenance of the optical fiber line and fluorescent fiber optic temperature sensor;

[0013] 2. Adjust the threaded rod to slide vertically along the stabilizing hole. Adjust the threaded rod to move the optical fiber and the fluorescent fiber optic temperature sensor synchronously to adjust the vertical working height. Use the symmetrically distributed positioning nuts to squeeze the upper and lower end surfaces of the top cover to fix it. This allows the working position of the fluorescent fiber optic temperature sensor to adapt to different transformer windings. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the front view structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the cross-sectional structure of the connecting cylinder and the top cover when viewed from above;

[0017] Figure 4 It is a schematic diagram of the three-dimensional structure of the top cover of the utility model.

[0018] In the figure: 1. Transformer body; 2. Mounting hole; 3. Connecting tube; 4. Top cover; 5. Locking bolt; 6. Locking nut; 7. Limiting groove; 8. Fiber optic stabilizing sleeve; 9. Fiber optic line; 10. Fluorescent fiber optic temperature sensor; 11. Stabilizing hole; 12. Adjusting threaded rod; 13. Positioning nut; 14. Upper C-type clip; 15. Lower C-type clip. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] See also Figure 1-4 The utility model provides a technical solution: a transformer optical fiber winding temperature detection device, including a transformer body 1, a mounting hole 2, a connecting tube 3, a top cover 4, a locking bolt 5, a locking nut 6, a limiting groove 7, an optical fiber stabilizing sleeve 8, an optical fiber line 9, a fluorescent optical fiber temperature sensor 10, a stabilizing hole 11, an adjusting threaded rod 12, a positioning nut 13, an upper C-type card 14 and a lower C-type card 15. A mounting hole 2 is opened on the top of the transformer body 1, a connecting tube 3 is fixedly installed on the top surface of the transformer body 1 at the edge of the mounting hole 2, a top cover 4 is installed on the connecting tube 3, and a fixing screw is fixed on the top of the outer wall of the connecting tube 3. Locking bolt 5, a locking nut 6 is installed at the end of the locking bolt 5, the locking bolt 5 passes through the limiting groove 7, the limiting groove 7 is opened on the side of the top cover 4, an optical fiber stabilizing sleeve 8 is fixed through the center of the top cover 4, an optical fiber line 9 is installed through the center of the optical fiber stabilizing sleeve 8, a fluorescent optical fiber temperature sensor 10 is fixedly installed at the bottom end of the optical fiber line 9, a stabilizing hole 11 is opened through one side of the top of the top cover 4, an adjusting threaded rod 12 is installed through the stabilizing hole 11, a positioning nut 13 is installed on the adjusting threaded rod 12, the adjusting threaded rod 12 passes through the center of the upper C-type card 14, and the upper C-type card 14 is fixedly installed on one side of the inner wall of the mounting hole 2.

[0021] In this example, the connecting tube 3 and the top cover 4 are snap-fitted together, and a locking bolt 5 is provided at an equal angle to the center of the connecting tube 3 on the top of the outer wall of the connecting tube 3. The above structural design enables the top cover 4 to be stably installed and quickly locked by the locking bolt 5 and the locking nut 6.

[0022] The locking bolt 5 is slidably connected to the limiting groove 7, and the limiting grooves 7 are evenly spaced on the side wall of the top cover 4. The above structural design enables the limiting grooves 7 to be stably aligned and fitted with the locking bolt 5, facilitating the disassembly and installation of the top cover 4.

[0023] The inner wall of the optical fiber stabilizing sleeve 8 fits tightly with the optical fiber line 9, and the optical fiber line 9 and the adjusting threaded rod 12 are distributed in parallel. The above structural design enables the optical fiber stabilizing sleeve 8 to limit the optical fiber line 9, and the adjusting threaded rod 12 can stabilize the vertical adjustment of the optical fiber line 9.

[0024] The adjusting threaded rod 12 is slidably connected to the stabilizing hole 11, and positioning nuts 13 are installed on the adjusting threaded rod 12 symmetrically about the center of the stabilizing hole 11. The above structural design enables the adjusting threaded rod 12 to slide vertically along the stabilizing hole 11 to adjust the working height, and the positioning nuts 13 squeeze the upper and lower end surfaces of the top of the top cover 4 to stably fix the adjusting threaded rod 12.

[0025] The adjusting threaded rod 12 is slidably connected to the upper C-type card 14, and a lower C-type card 15 is fixed to the bottom of the adjusting threaded rod 12. The lower C-type card 15 is engaged and connected with the optical fiber line 9 and the fluorescent optical fiber temperature sensor 10. The above structural design enables the optical fiber line 9 and the fluorescent optical fiber temperature sensor 10 to be easily connected and separated from the adjusting threaded rod 12, and the adjusting threaded rod 12 can also be easily connected and separated from the upper C-type card 14, which is convenient for device maintenance. At the same time, the upper C-type card 14 can also limit the adjusting threaded rod 12 to improve the stability of the adjusting threaded rod 12.

[0026] Working principle: When using this device, first remove the top cover 4 installed with the optical fiber line 9, the fluorescent optical fiber temperature sensor 10 and the adjusting threaded rod 12, adjust the working height of the fluorescent optical fiber temperature sensor 10 according to the height of the transformer winding to be detected, rotate the symmetrically distributed positioning nuts 13 away from the upper and lower end surfaces of the top of the top cover 4, push the adjusting threaded rod 12 to slide vertically along the stabilizing hole 11, and adjust the threaded rod 12 to move vertically with the optical fiber line 9 and the fluorescent optical fiber temperature sensor 10 until the position of the fluorescent optical fiber temperature sensor 10 is appropriate, and rotate the symmetrically distributed positioning nuts 13 to squeeze the upper and lower end surfaces of the top of the top cover 4 to fix it;

[0027] Align the bottom opening of the limiting groove 7 on the top cover 4 with the locking bolt 5, move the top cover 4 downward to engage and fix it with the connecting tube 3, fit the locking bolt 5 with the limiting groove 7, rotate the locking nut 6 to squeeze the top cover 4 and the connecting tube 3 to fix it, adjust the threaded rod 12 to engage with the upper C-shaped clip 14, and insert the fluorescent fiber optic temperature sensor 10 into the appropriate position in the transformer body 1 to perform real-time temperature detection. This is the working principle of the transformer fiber optic winding temperature detection device.

[0028] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A transformer optical fiber winding temperature detection device, comprising a transformer body (1), characterized in that: The top of the transformer body (1) is provided with a mounting hole (2), a connecting cylinder (3) is fixedly installed on the top surface of the transformer body (1) at the edge of the mounting hole (2), a top cover (4) is installed on the connecting cylinder (3), a locking bolt (5) is fixedly installed on the top of the outer wall of the connecting cylinder (3), a locking nut (6) is installed at the end of the locking bolt (5), the locking bolt (5) passes through a limiting groove (7), the limiting groove (7) is provided on the side of the top cover (4), and an optical fiber stabilizing sleeve (6) is fixedly passed through the center of the top cover (4). 8), an optical fiber line (9) is installed through the center of the optical fiber stabilizing sleeve (8), a fluorescent optical fiber temperature sensor (10) is fixedly installed at the bottom end of the optical fiber line (9), a stabilizing hole (11) is opened through one side of the top of the top cover (4), an adjusting threaded rod (12) is installed through the inside of the stabilizing hole (11), a positioning nut (13) is installed on the adjusting threaded rod (12), the adjusting threaded rod (12) passes through the center of the upper C-type card (14), and the upper C-type card (14) is fixedly installed on one side of the inner wall of the mounting hole (2).

2. A transformer optical fiber winding temperature detection device according to claim 1, characterized in that: The connecting tube (3) and the top cover (4) are connected in a snap-fit ​​manner, and a locking bolt (5) is provided on the top of the outer wall of the connecting tube (3) at an equal angle to the center of the connecting tube (3).

3. The transformer optical fiber winding temperature detection device according to claim 1, characterized in that: The locking bolt (5) is slidably connected to the limiting groove (7), and the limiting grooves (7) are distributed at equal intervals on the side wall of the top cover (4).

4. The transformer optical fiber winding temperature detection device according to claim 1, characterized in that: The inner wall of the optical fiber stabilizing sleeve (8) is tightly fitted with the optical fiber line (9), and the optical fiber line (9) and the adjusting threaded rod (12) are distributed in parallel.

5. The transformer optical fiber winding temperature detection device according to claim 1, characterized in that: The adjusting threaded rod (12) is slidably connected to the stabilizing hole (11), and a positioning nut (13) is symmetrically mounted on the adjusting threaded rod (12) about the center of the stabilizing hole (11).

6. The transformer optical fiber winding temperature detection device according to claim 1, characterized in that: The adjusting threaded rod (12) is slidably connected to the upper C-type card (14); a lower C-type card (15) is fixed to the bottom of the adjusting threaded rod (12); and the lower C-type card (15) is engaged with the optical fiber line (9) and the fluorescent optical fiber temperature sensor (10).

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