A device and method for visually detecting internal defects of a high-voltage cable outdoor terminal

Abstract

The present invention discloses a device and method for visually detecting internal defects in a high-voltage cable outdoor terminal, comprising an outdoor cable terminal and a visual detection mechanism; the outdoor cable terminal comprises an insulating sleeve with a spiral lifting channel provided therein; the visual detection mechanism comprises an infrared detection module for detecting the temperature of the internal structure of the outdoor cable terminal, a detection drive mechanism for driving the infrared detection module to move in the spiral lifting channel, an intelligent control module for processing collected signals, and a background management system; the infrared detection module is located in the spiral lifting channel of the insulating sleeve; the intelligent control module is connected to the infrared detection module and the detection drive mechanism, respectively, and the background management system is connected to the intelligent control module via a network signal. The present invention enables visual detection of key locations within the oil-type cable terminal, can monitor internal temperature anomalies, detect fault points in advance, and provide fault warnings.

Description

Technical Field

[0001] The present invention relates to an outdoor cable terminal, and in particular to a device and method for visually detecting internal defects of an outdoor high-voltage cable terminal. Background Art

[0002] Conventional cable terminal products lack the ability to detect their own status, making it impossible to monitor high-voltage cable terminals during operation. Their operating status can only be assessed through manual inspections or external online monitoring devices. Because the terminals have exposed high-voltage parts and need to be installed at height, the effectiveness of manual inspections is greatly reduced, and external online monitoring devices are also unable to inspect the interior of the cable terminals. To ensure reliable operation of cable terminals, reduce the difficulty of manual inspections, and improve inspection effectiveness and efficiency, a device and method for visually detecting internal defects in high-voltage outdoor cable terminals is of great significance and practical value. Summary of the Invention

[0003] The purpose of the present invention is to overcome the above-mentioned problems and provide a visual detection device for internal defects of high-voltage cable outdoor terminals. The visual detection device realizes visual detection of key positions inside the cable oil terminal, can monitor internal temperature change points, discover fault points in advance, and provide fault warnings.

[0004] Another object of the present invention is to provide a method for visually detecting internal defects of a high-voltage cable outdoor terminal.

[0005] The purpose of the present invention is achieved through the following technical solutions:

[0006] A visual detection device for internal defects of a high-voltage cable outdoor terminal, comprising an outdoor cable terminal and a visual detection mechanism;

[0007] The cable outdoor terminal includes an insulating sleeve with a spiral lifting channel provided therein;

[0008] The visual detection mechanism includes an infrared detection module for detecting the temperature of the internal structure of the cable outdoor terminal, a detection drive mechanism for driving the infrared detection module to move in the spiral lifting channel, an intelligent control module for processing the collected signals, and a background management system; the infrared detection module is located in the spiral lifting channel of the insulating sleeve; the intelligent control module is connected to the infrared detection module and the detection drive mechanism respectively, and the background management system is connected to the intelligent control module via a network signal.

[0009] In a preferred embodiment of the present invention, the detection drive mechanism includes an integrally mounted housing, a detection drive motor, and a propeller. The infrared detection module and the detection drive motor are both mounted on the integrally mounted housing, and the detection drive motor is connected to the propeller. With this structure, since the insulating sleeve is filled with insulating oil, the propeller is driven by the detection drive motor to rotate, thereby being raised and lowered along the spiral lifting channel, thereby detecting temperatures at different locations.

[0010] Furthermore, the detection drive mechanism also includes a battery and a wireless charging base. The battery is arranged in an integrated installation shell, and the wireless charging base is installed outside the insulating sleeve. Power is taken from the power ring and the electrical energy is transmitted to the battery to maintain the operation of the infrared detection module.

[0011] Furthermore, the power taking ring takes power through the CT, and the CT is put on the surface of the high-voltage cable below the terminal. When the high-voltage cable is energized, the CT can obtain the electrical energy and transmit it to the internal battery through the wireless charging base.

[0012] In a preferred embodiment of the present invention, the intelligent control module is connected to the infrared detection module, the detection drive mechanism and the background management system respectively via wireless means.

[0013] A preferred embodiment of the present invention is that the insulating sleeve includes an outer sleeve and an inner sleeve, the outer wall of the inner sleeve is seamlessly attached to the inner wall of the outer sleeve; the spiral lifting channel is arranged on the inner wall of the outer sleeve; the inner sleeve is provided with insulating oil, and the inner sleeve is made of a transparent polymer material.

[0014] Furthermore, the detection drive mechanism includes a flowing liquid, a delivery pipe and a delivery pump; the flowing liquid is filled in the delivery pipe and the spiral lifting channel; the delivery pipe includes a first delivery pipe and a second delivery pipe, one end of the first delivery pipe is connected to the bottom of the spiral lifting channel, and the other end of the first delivery pipe is connected to the delivery pump; one end of the second delivery pipe is connected to the top of the spiral lifting channel, and the other end of the second delivery pipe is connected to the delivery pump.

[0015] With the above structure, if the infrared detection module needs to be driven upward, the delivery pump drives the liquid from the first delivery pipe to the spiral lifting channel. After entering the spiral lifting channel, the liquid moves upward, thereby pushing the infrared detection module to rise along the spiral lifting channel. Conversely, if the infrared detection module needs to be driven downward, the delivery pump drives the liquid from the second delivery pipe to the spiral lifting channel. After entering the spiral lifting channel, the liquid moves downward, thereby pushing the infrared detection module to move downward along the spiral lifting channel. Furthermore, because the inner sleeve separates the insulating oil, the infrared detection module does not need to be immersed in the insulating oil, which is conducive to the layout of the drive mechanism and ensures sufficient power to ensure the lifting and lowering movement of the infrared detection module.

[0016] Furthermore, the second delivery pipe is disposed within the outer sleeve, and a connecting groove is provided at the top of the outer sleeve, connecting the top of the second delivery pipe with the top of the spiral lifting channel; the first delivery pipe and delivery pump are disposed below the outer sleeve. This structure is compact and rational, and does not interfere with other components.

[0017] Furthermore, the spiral lifting channel includes a spiral groove provided on the inner wall of the outer sleeve and a spiral tube body embedded in the spiral groove. Specifically, the spiral tube body is a transparent hose, which is conveniently installed in the spiral groove. The advantage of adopting this structure is that the spiral tube body forms the working channel of the infrared detection module, which is easy to seal and more convenient to install and replace.

[0018] Furthermore, the lower end of the outer sleeve is provided with a lower communicating port connected to the lower end of the spiral tube body, and the lower communicating port is connected to the first conveying pipe; the upper end of the outer sleeve is provided with an upper communicating port connected to the upper end of the spiral tube body, and the upper communicating port is connected to the second conveying pipe.

[0019] A method for visually detecting internal defects of a high-voltage cable outdoor terminal comprises the following steps:

[0020] The intelligent control module sends an ascending or descending instruction to the detection drive mechanism, and the detection drive mechanism drives the infrared detection module to ascend or descend along the spiral lifting channel;

[0021] The infrared detection module collects the temperature of the internal structure of the cable outdoor terminal at the current height and position in real time, and transmits the collected temperature signal to the intelligent control module;

[0022] The temperature signal is analyzed through the intelligent control module, and the analysis results are transmitted to the background management system for unified management.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. The present invention realizes visual detection of key positions inside the cable oil terminal by arranging an infrared detection module that can be raised and lowered in the insulating sleeve. It can monitor the internal temperature change points, discover the fault points in advance, and issue fault warnings.

[0025] 2. By setting up a spiral lifting channel, the infrared detection module can not only be lifted to different heights for detection, but also be able to detect in different directions, providing more comprehensive monitoring. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a plan view of the infrared detection module and detection drive mechanism of one embodiment of the device for visually detecting internal defects of a high-voltage cable outdoor terminal of the present invention.

[0027] Figure 2 It is a schematic diagram of the three-dimensional structure of another embodiment of the device for visually detecting internal defects of a high-voltage cable outdoor terminal of the present invention.

[0028] Figure 3 This is a schematic exploded view of the three-dimensional structure of an insulating sleeve, an infrared detection module and a detection drive mechanism according to another embodiment of the present invention.

[0029] Figure 4 This is a cross-sectional view of an insulating sleeve according to another embodiment of the present invention. DETAILED DESCRIPTION

[0030] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described below in conjunction with embodiments and drawings, but the embodiments of the present invention are not limited thereto.

[0031] Example 1

[0032] The visual detection device for internal defects of a high-voltage cable outdoor terminal of this embodiment includes a cable outdoor terminal and a visual detection mechanism; the cable outdoor terminal includes an insulating sleeve, which is provided with a spiral lifting channel; the visual detection mechanism includes an infrared detection module for detecting the temperature of the internal structure of the cable outdoor terminal, a detection drive mechanism for driving the infrared detection module to move in the spiral lifting channel, an intelligent control module for processing collected signals, and a background management system; the infrared detection module is located in the spiral lifting channel of the insulating sleeve; the intelligent control module is connected to the infrared detection module and the detection drive mechanism, respectively, and the background management system is connected to the intelligent control module via a network signal.

[0033] See also Figure 1The detection drive mechanism includes an integrally mounted housing 1, a detection drive motor (not shown), and a propeller 2. The infrared detection module 3 and the detection drive motor are both mounted on the integrally mounted housing 1, and the detection drive motor is connected to the propeller 2. With this structure, since the insulating sleeve is filled with insulating oil, the propeller 2 is rotated by the detection drive motor and can be raised and lowered along the spiral lifting channel, thereby detecting temperatures at different locations.

[0034] Furthermore, the detection drive mechanism also includes a battery 4 and a wireless charging base. The battery 4 is arranged in an integrated mounting shell 1, and the wireless charging base is installed outside the insulating sleeve. The power is taken through the power ring and the electric energy is transmitted to the battery 4, thereby maintaining the operation of the infrared detection module 3.

[0035] Furthermore, the power taking ring takes power through the CT, and the CT is put on the surface of the high-voltage cable below the terminal. When the high-voltage cable is energized, the CT can obtain the electrical energy and transmit it to the internal battery through the wireless charging base.

[0036] Furthermore, the intelligent control module is wirelessly connected to the infrared detection module, the detection drive mechanism, and the backend management system. Specifically, the wireless infrared probe assembly uses wireless communication and wireless charging, without requiring changes to the terminal sealing structure. Furthermore, the installation and operation location is located at a low-field strength position at the cable terminal, making it unaffected by the terminal's electric field.

[0037] The method for visually detecting internal defects of a high-voltage cable outdoor terminal of this embodiment includes the following steps:

[0038] The intelligent control module sends an ascending or descending instruction to the detection drive mechanism, and the detection drive mechanism drives the infrared detection module to ascend or descend along the spiral lifting channel.

[0039] The infrared detection module collects the temperature of the internal structure of the cable outdoor terminal at the current height and position in real time, and transmits the collected temperature signal to the intelligent control module.

[0040] The temperature signal is analyzed through the intelligent control module, and the analysis results are transmitted to the background management system for unified management.

[0041] Example 2

[0042] See also Figure 2-4 , different from Example 1, the insulating sleeve of this embodiment includes an outer sleeve 5 and an inner sleeve 6, the outer wall of the inner sleeve 6 is seamlessly attached to the inner wall of the outer sleeve 5; the spiral lifting channel 7 is arranged on the inner wall of the outer sleeve 5; the inner sleeve 6 is provided with insulating oil, and the inner sleeve 6 is made of a transparent polymer material.

[0043] See also Figure 2-4 The detection drive mechanism includes a flowing liquid, a conveying pipe and a conveying pump 8; the flowing liquid is filled in the conveying pipe and the spiral lifting channel 7; the conveying pipe includes a first conveying pipe 9 and a second conveying pipe 10, one end of the first conveying pipe 9 is connected to the bottom of the spiral lifting channel 7, and the other end of the first conveying pipe 9 is connected to the conveying pump 8; one end of the second conveying pipe 10 is connected to the top of the spiral lifting channel 7, and the other end of the second conveying pipe 10 is connected to the conveying pump 8.

[0044] Through the above structure, if it is necessary to drive the infrared detection module 3 to rise, the delivery pump 8 drives the flowing liquid from the first delivery pipe 9 to the spiral lifting channel 7. After entering the spiral lifting channel 7, the flowing liquid moves upward, thereby pushing the infrared detection module 3 to rise along the spiral lifting channel 7. On the contrary, if it is necessary to drive the infrared detection module 3 to descend, the delivery pump 8 drives the flowing liquid from the second delivery pipe 10 to the spiral lifting channel 7. After entering the spiral lifting channel 7, the flowing liquid moves downward, thereby pushing the infrared detection module 3 to move downward along the spiral lifting channel 7. Furthermore, because the inner sleeve 6 separates the insulating oil, the infrared detection module 3 does not need to be immersed in the insulating oil, which is conducive to the layout of the driving mechanism and ensures sufficient power to ensure the lifting and lowering movement of the infrared detection module 3.

[0045] See also Figure 2-4 The second delivery pipe 10 is disposed in the outer sleeve 5. A connecting groove 5-1 is provided at the top of the outer sleeve 5. The connecting groove 5-1 connects the top of the second delivery pipe 10 with the top of the spiral lifting channel 7. The first delivery pipe 9 and the delivery pump 8 are disposed below the outer sleeve 5. This structure is compact and reasonable, and does not interfere with other components.

[0046] See also Figure 2-4 The spiral lifting channel 7 includes a spiral groove provided on the inner wall of the outer sleeve and a spiral tube body 11 embedded in the spiral groove. Specifically, the spiral tube body 11 is a transparent hose, which is convenient for installation in the spiral groove. The advantage of adopting this structure is that the spiral tube body 11 forms the working channel of the infrared detection module 3, which is easy to seal and more convenient to install and replace.

[0047] Furthermore, the lower end of the outer sleeve 5 is provided with a lower communicating port connected to the lower end of the spiral tube body 11, and the lower communicating port is connected to the first conveying pipe 9; the upper end of the outer sleeve 5 is provided with an upper communicating port connected to the upper end of the spiral tube body 11, and the upper communicating port is connected to the second conveying pipe 10.

[0048] The above is a preferred embodiment of the present invention, but the embodiment of the present invention is not limited to the above content. Any other changes, modifications, substitutions, combinations, and simplifications made without departing from the spirit and principles of the present invention should be considered as equivalent replacement methods and are included in the scope of protection of the present invention.

Claims

1. A visual detection device for internal defects of high-voltage cable outdoor terminals, characterized in that: Including cable outdoor terminal and visual detection mechanism; The cable outdoor terminal includes an insulating sleeve with a spiral lifting channel provided therein; The visual detection mechanism includes an infrared detection module for detecting the temperature of the internal structure of the cable outdoor terminal, a detection drive mechanism for driving the infrared detection module to move in the spiral lifting channel, an intelligent control module for processing the collected signals, and a background management system; the infrared detection module is located in the spiral lifting channel of the insulating sleeve; the intelligent control module is connected to the infrared detection module and the detection drive mechanism respectively, and the background management system is connected to the intelligent control module via a network signal.

2. The device for visually detecting internal defects of a high-voltage cable outdoor terminal according to claim 1, characterized in that: The detection drive mechanism includes an integrally mounted housing, a detection drive motor and a propeller. The infrared detection module and the detection drive motor are both arranged on the integrally mounted housing, and the detection drive motor is connected to the propeller.

3. The device for visually detecting internal defects of a high-voltage cable outdoor terminal according to claim 2, characterized in that: The detection drive mechanism also includes a battery and a wireless charging base. The battery is arranged in an integral installation shell, and the wireless charging base is installed outside the insulating sleeve. Power is taken through the power ring and the electrical energy is transmitted to the battery to maintain the operation of the infrared detection module.

4. The device for visually detecting internal defects of a high-voltage cable outdoor terminal according to claim 3, characterized in that: The power ring draws power through the CT. The CT is placed on the surface of the high-voltage cable below the terminal. When the high-voltage cable is energized, the CT can obtain electrical energy and transmit it to the internal battery through the wireless charging base.

5. The device for visually detecting internal defects of a high-voltage cable outdoor terminal according to claim 1, characterized in that: The intelligent control module is connected to the infrared detection module, the detection drive mechanism and the background management system respectively in a wireless manner.

6. The device for visually detecting internal defects of a high-voltage cable outdoor terminal according to claim 1, characterized in that: The insulating sleeve includes an outer sleeve and an inner sleeve, the outer wall of the inner sleeve is seamlessly attached to the inner wall of the outer sleeve; the spiral lifting channel is arranged on the inner wall of the outer sleeve; the inner sleeve is provided with insulating oil, and the inner sleeve is made of a transparent polymer material.

7. The device for visually detecting internal defects of a high-voltage cable outdoor terminal according to claim 6, characterized in that: The detection drive mechanism includes a flowing liquid, a delivery pipe and a delivery pump; the flowing liquid is filled in the delivery pipe and the spiral lifting channel; the delivery pipe includes a first delivery pipe and a second delivery pipe, one end of the first delivery pipe is connected to the bottom of the spiral lifting channel, and the other end of the first delivery pipe is connected to the delivery pump; one end of the second delivery pipe is connected to the top of the spiral lifting channel, and the other end of the second delivery pipe is connected to the delivery pump.

8. The device for visually detecting internal defects of a high-voltage cable outdoor terminal according to claim 7, characterized in that: The second conveying pipeline is arranged in the outer sleeve, and a connecting groove is provided on the top of the outer sleeve, which connects the top of the second conveying pipeline with the top of the spiral lifting channel; the first conveying pipeline and the conveying pump are arranged below the outer sleeve.

9. The device for visually detecting internal defects of a high-voltage cable outdoor terminal according to claim 6, characterized in that: The spiral lifting channel includes a spiral groove provided on the inner wall of the outer sleeve and a spiral tube body embedded in the spiral groove; The lower end of the outer sleeve is provided with a lower communicating port communicating with the lower end of the spiral tube body, and the lower communicating port is connected to the first conveying pipe; the upper end of the outer sleeve is provided with an upper communicating port communicating with the upper end of the spiral tube body, and the upper communicating port is connected to the second conveying pipe.

10. A method for visually detecting internal defects of a high-voltage cable outdoor terminal according to any one of claims 1 to 9, characterized in that: The following steps are involved: The intelligent control module sends an ascending or descending instruction to the detection drive mechanism, and the detection drive mechanism drives the infrared detection module to ascend or descend along the spiral lifting channel; The infrared detection module collects the temperature of the internal structure of the cable outdoor terminal at the current height and position in real time, and transmits the collected temperature signal to the intelligent control module; The temperature signal is analyzed through the intelligent control module, and the analysis results are transmitted to the background management system for unified management.

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