Temperature sensing structure for high-voltage side cable head of fan box transformer substation

Abstract

The utility model discloses a temperature sensing structure of a high-voltage side cable head of a fan box transformer substation. The temperature sensing structure comprises a temperature-sensing color-changing paste which is pasted on the front surface of the cable head. The transparent protection assembly is arranged on the surface of the cable head and comprises side guide seats fixed to the surfaces of the two sides of the cable head, side sliding seats slidably installed on the side faces of the side guide seats and a transparent protection plate which is arranged on the front surface of the cable head and covers the thermochromic patch, and the transparent protection plate is movably connected with the two side sliding seats; according to the utility model, the characteristics of the temperature sensing paste are utilized, real-time temperature monitoring of the cable head at the high-voltage side of the fan case transformer in operation is realized, the safety risk caused by opening the high-voltage side cabinet door in the fan operation process is avoided, the monitoring efficiency and safety are greatly improved, a professional temperature measuring instrument and complex operation are not needed, and the cost is reduced. The structure is simple and effective, and is suitable for monitoring the temperature of the high-voltage side cable heads of various types of fan box transformers.

Description

Technical Field

[0001] This utility model belongs to the field of wind power equipment monitoring technology, specifically relating to the temperature sensing structure of the high-voltage side cable head of the wind turbine box transformer. Background Technology

[0002] In wind power generation systems, the high-voltage side cable head of the wind turbine box is one of the key components connecting the wind turbine to the power grid. Its operating status is directly related to the safety and stability of the entire wind power system. Traditionally, the monitoring of the cable head status mainly relies on visual inspection, that is, observing whether there are any visual problems such as damage through the observation window. However, this method cannot effectively monitor the temperature of the cable head, and overheating of the cable head is often a precursor to failure.

[0003] To obtain accurate temperature information of the cable head, existing technologies typically require opening the high-voltage side cabinet door while the machine is stopped and using professional temperature measuring instruments for measurement. This approach is not only cumbersome, but more importantly, opening the high-voltage side cabinet door during fan operation poses a high safety risk, potentially leading to personal injury or equipment damage. Therefore, this utility model proposes a temperature sensing structure for the high-voltage side cable head of the fan box transformer. Utility Model Content

[0004] The purpose of this invention is to provide a temperature sensing structure for the high-voltage side cable head of a wind turbine box transformer, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a temperature sensing structure for the high-voltage side cable head of a wind turbine box transformer, including...

[0006] Thermochromic sticker affixed to the front surface of the cable head;

[0007] The transparent protective assembly is provided on the surface of the cable head, including side guide seats fixed on both sides of the cable head, side slide seats slidably mounted on the side of the side guide seats, and a transparent protective plate provided on the front surface of the cable head and covering the thermochromic sticker, wherein the transparent protective plate is movably connected to the two side slide seats.

[0008] Preferably, a rectangular groove is provided on the rear surface of the transparent protective plate, and the thermochromic sticker is located within the rectangular groove.

[0009] Preferably, the side guide seat has a T-shaped groove on its side, and a T-shaped slider is slidably disposed in the T-shaped groove. One end of the T-shaped slider extends to the side of the side guide seat and is fixed to the side guide seat.

[0010] Preferably, the side slide seat has an inner slide groove, an inner slider and a spring are provided in the inner slide groove, the inner slider slides in the inner slide groove, and a connecting rod is fixed to the front surface of the inner slider. The front end of the connecting rod extends through to the front surface of the side slide seat and is fixed to the transparent protective plate.

[0011] Preferably, one end of the spring is fixed to the inner wall of the inner groove, and the other end of the spring is fixed to the inner slider.

[0012] Preferably, the front surface of the side slide seat has a rod hole corresponding to the connecting rod, and the rod hole communicates with the inner slide groove.

[0013] Preferably, the upper and lower ends of the T-shaped groove are connected to the upper and lower surfaces of the side guide seat, respectively.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model utilizes the characteristics of temperature-sensing stickers to realize real-time temperature monitoring of the high-voltage side cable head of the wind turbine box transformer during operation, avoiding the safety risks caused by opening the high-voltage side cabinet door during wind turbine operation, greatly improving monitoring efficiency and safety, eliminating the need for professional temperature measuring instruments and complex operations, reducing monitoring costs and workload, and the structure is simple and effective, suitable for temperature monitoring of the high-voltage side cable head of various types of wind turbine box transformers. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This utility model Figure 1 A magnified view of a portion of region A in the middle;

[0017] Figure 3 This is a perspective view of the thermochromic sticker and transparent protective component of this utility model;

[0018] Figure 4 This is a top sectional view of the transparent protective component of this utility model;

[0019] In the diagram: 1. Temperature-sensitive color-changing sticker; 2. Transparent protective component; 21. Transparent protective plate; 211. Rectangular groove; 22. Side slide seat; 23. Side guide seat; 24. T-shaped slider; 25. T-shaped slide groove; 26. Inner slide groove; 27. Spring; 28. Inner slider; 29. ​​Connecting rod; 3. Cable head. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example

[0022] Please see Figures 1 to 4This is an embodiment of the present utility model, which provides a technical solution: a temperature sensing structure for the high-voltage side cable head of a wind turbine box transformer, including...

[0023] The thermochromic sticker 1, model SWX-70-4-8, is affixed to the front surface of cable head 3. Its color-changing characteristic with increasing temperature is existing technology; the specific principle is not detailed here but can be found in the existing patent with publication number CN211498285U. The back of the thermochromic sticker 1 has adhesive; it can be easily peeled off and applied. When the temperature at the cable head 3 is higher than the overheating temperature of the thermochromic sticker 1, it changes from its initial white color to yellow or black and remains unchanged. This allows operators to visually observe the color change of the thermochromic sticker 1 through the observation window on the high-voltage side cabinet door without opening it, thus determining if the cable head 3 has an overheating fault. This method is intuitive, simple, and efficient, avoiding the safety risks associated with opening the high-voltage side cabinet door during fan operation. It greatly improves monitoring efficiency and safety, requiring no professional temperature measuring instruments or complex operations.

[0024] The transparent protective assembly 2 is provided on the surface of the cable head 3, including side guide seats 23 fixed on both sides of the cable head 3, side slide seats 22 slidably installed on the side of the side guide seats 23, and a transparent protective plate 21 provided on the front surface of the cable head 3 and covering the thermochromic sticker 1. The transparent protective plate 21 is movably connected to the two side slide seats 22. By covering the thermochromic sticker 1 with the transparent protective plate 21, the adhesion stability of the thermochromic sticker 1 can be ensured during daily use, and the thermochromic sticker 1 can be prevented from peeling off. At the same time, since the transparent protective plate 21 is made of transparent polytetrafluoroethylene propylene (FEP) material, it does not affect the normal observation of the color change state of the thermochromic sticker 1 by subsequent operators.

[0025] In this embodiment, preferably, a rectangular groove 211 is provided on the rear surface of the transparent protective plate 21, and the thermochromic sticker 1 is located in the rectangular groove 211, so that the thermochromic sticker 1 can be covered on the inside for protection.

[0026] In this embodiment, preferably, a T-shaped groove 25 is provided on the side of the side guide seat 23, and a T-shaped slider 24 is slidably disposed in the T-shaped groove 25. One end of the T-shaped slider 24 extends to the side of the side guide seat 23 and is fixed to the side slide seat 22, so that the side slide seat 22 can slide smoothly on the side of the side guide seat 23.

[0027] In this embodiment, preferably, an inner sliding groove 26 is provided in the side sliding seat 22, and an inner slider 28 and a spring 27 are provided in the inner sliding groove 26. The inner slider 28 slides in the inner sliding groove 26, and a connecting rod 29 is fixed to the front surface of the inner slider 28. The front end of the connecting rod 29 passes through the front surface of the side sliding seat 22 and is fixed to the transparent protective plate 21. Under the pushing of the spring 27, it is ensured that the transparent protective plate 21 can stably cover the front surface of the cable head 3 and continuously protect the thermochromic sticker 1 during daily use. When the thermochromic sticker 1 needs to be replaced later, simply pull the transparent protective plate 21 forward forcefully, so that the connecting rod 29 slides forward with the inner slider 28 and gradually compresses the spring 27 until the thermochromic sticker 1 is no longer in the rectangular sticker groove 211. At this time, the transparent protective plate 21 can be slid up to expose the thermochromic sticker 1, making it convenient to replace the thermochromic sticker 1.

[0028] In this embodiment, preferably, one end of the spring 27 is fixed to the inner wall of the inner slide groove 26, and the other end of the spring 27 is fixed to the inner slider 28 to ensure the installation stability of the spring 27.

[0029] In this embodiment, preferably, the front surface of the side slide seat 22 is provided with a rod hole corresponding to the connecting rod 29, and the rod hole communicates with the inner slide groove 26 to allow the connecting rod 29 to pass smoothly through.

[0030] In this embodiment, preferably, the upper and lower ends of the T-shaped slide 25 are connected to the upper and lower surfaces of the side guide seat 23, so that the subsequent T-shaped slider 24 can slide out from either end of the T-shaped slide 25 to realize the disassembly or installation of the transparent protective plate 21.

[0031] Although embodiments of the present invention have been shown and described (see the detailed description above), it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A temperature sensing structure for the high-voltage side cable head of a wind turbine box transformer, characterized in that: include A thermochromic sticker (1) is pasted on the front surface of the cable head (3); And a transparent protective assembly (2) provided on the surface of the cable head (3), including side guide seats (23) fixed on both sides of the cable head (3), side slide seats (22) slidably installed on the side of the side guide seats (23), and a transparent protective plate (21) provided on the front surface of the cable head (3) and covering the thermochromic sticker (1), and the transparent protective plate (21) is movably connected to the two side slide seats (22).

2. The temperature sensing structure for the high-voltage side cable head of the fan box transformer according to claim 1, characterized in that: The transparent protective plate (21) has a rectangular groove (211) on its rear surface, and the thermochromic sticker (1) is located in the rectangular groove (211).

3. The temperature sensing structure for the high-voltage side cable head of the wind turbine box transformer according to claim 1, characterized in that: The side guide seat (23) has a T-shaped groove (25) on its side, and a T-shaped slider (24) is slidably disposed in the T-shaped groove (25). One end of the T-shaped slider (24) extends to the side of the side guide seat (23) and is fixed to the side slide seat (22).

4. The temperature sensing structure for the high-voltage side cable head of the wind turbine box transformer according to claim 1, characterized in that: The side slide seat (22) has an inner slide groove (26) inside. The inner slide groove (26) is provided with an inner slider (28) and a spring (27). The inner slider (28) slides in the inner slide groove (26), and a connecting rod (29) is fixed on the front surface of the inner slider (28). The front end of the connecting rod (29) extends through to the front surface of the side slide seat (22) and is fixed to the transparent protective plate (21).

5. The temperature sensing structure for the high-voltage side cable head of the wind turbine box transformer according to claim 4, characterized in that: One end of the spring (27) is fixed to the inner wall of the inner groove (26), and the other end of the spring (27) is fixed to the inner slider (28).

6. The temperature sensing structure for the high-voltage side cable head of the wind turbine box transformer according to claim 4, characterized in that: The front surface of the side slide (22) is provided with a rod hole corresponding to the connecting rod (29), and the rod hole communicates with the inner slide groove (26).

7. The temperature sensing structure for the high-voltage side cable head of the fan box transformer according to claim 3, characterized in that: The upper and lower ends of the T-shaped groove (25) are respectively connected to the upper and lower surfaces of the side guide seat (23).

Images