Ultrasonic partial discharge detector carried on unmanned aerial vehicle platform

Abstract

The invention discloses an ultrasonic partial discharge detector carried on an unmanned aerial vehicle platform. The ultrasonic partial discharge detector comprises an ultrasonic partial discharge detector main body, a silencing structure, a skport rotating shaft, an M2.5 * 6 screw, an M2.5 * 6 screw, an M6 * 10 screw and an M6 * 10 hand screw, the skport rotating shaft is locked at the rear end of the ultrasonic partial discharge detector main body through an M6 * 10 screw and an M6 * 10 hand screw, and penetrates through notches in two sides of the rear end of the ultrasonic partial discharge detector main body through an M2.5 * 6 screw to be locked. By optimizing the structural design of the unmanned aerial vehicle, the unmanned aerial vehicle is matched with the intelligent inspection equipment, and a worker can control the unmanned aerial vehicle to fly along the equipment or line to be inspected, so that potential safety hazards or fault points such as damage points, partial discharge points and heating points on the way can be found in time, the inspection work can be quickly completed, the detection precision is improved, and the inspection efficiency is improved. Therefore, the reliability of normal operation of the power transmission line is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of partial discharge detection, and in particular to an ultrasonic partial discharge detector carried on an unmanned aerial vehicle platform. Background Art

[0002] With the development of the national economy and the improvement of people's living standards, my country's electricity consumption has continued to increase, and the distance of transmission lines has also shown an upward trend. However, many factors such as natural disasters, equipment failures, external force damage, improper operation, etc. can cause damage to transmission lines and cause leakage accidents. Therefore, daily maintenance of transmission lines is one of the important methods to protect the normal operation of the power transmission system. Traditional circuit inspection work is mainly done manually. When inspecting special areas such as mountainous areas, hills, and deserts, not only is the workload large and time-consuming, but the accuracy of problem detection is not high, and there may even be situations that endanger personal safety. Summary of the invention

[0003] Therefore, the purpose of the present invention is to provide an ultrasonic partial discharge detector mounted on a UAV platform. By optimizing the structural design of the UAV and matching the UAV with intelligent inspection equipment, the staff can control the UAV to fly along the equipment or line to be inspected, so as to timely discover the safety hazards or fault points such as damaged points, partial discharge points, and heat points along the way. While completing the inspection work quickly, the detection accuracy can be improved, thereby improving the reliability of the normal operation of the transmission line.

[0004] To solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solutions: an ultrasonic partial discharge detector mounted on an unmanned aerial vehicle platform, comprising: an ultrasonic partial discharge detector body, a muffler structure, a skyport shaft, an M2.5×6 screw, an M2.5×6 screw, an M6×10 screw, and an M6×10 hand screw; The skyport shaft is locked to the rear end of the ultrasonic partial discharge detector body by M6×10 screws and M6×10 hand screws, and is locked by M2.5×6 screws penetrating through the notches on both sides of the rear end of the ultrasonic partial discharge detector body.

[0005] As a preferred solution of the ultrasonic partial discharge detector mounted on an unmanned aerial vehicle platform described in the present invention, the silencing structure specifically includes: a silencing barrel, a limit pin, an M2.5 screw hole and a through hole with a length of 12 mm and a width of 1.8 mm; The limit pin cooperates with the corresponding notch on the main body of the ultrasonic partial discharge detector to lock the silencer barrel. The small end of the silencer barrel is nested in the main body of the ultrasonic partial discharge detector and is locked on the main body of the ultrasonic partial discharge detector through the M2.5 screw hole.

[0006] As a preferred solution of the ultrasonic partial discharge detector mounted on a UAV platform described in the present invention, the main body of the ultrasonic partial discharge detector specifically includes: a rear shell, a power adapter board, M2×5 screws, M3×12 screws, M2.5×6 screws, a computer control board, and a microphone array unit; The power adapter board is fastened to the rear housing by M2×5 screws, and the computer control board is plugged into the microphone array unit and fastened to the microphone array unit by M2.5×6 screws.

[0007] As a preferred solution of the ultrasonic partial discharge detector carried on an unmanned aerial vehicle platform described in the present invention, the heat sink of the rear shell is affixed with thermal conductive silicone, pressed onto the computer control board, and locked onto the microphone array unit by passing through the mounting holes of the rear shell with 4 M3×12 screws.

[0008] As a preferred solution of the ultrasonic partial discharge detector mounted on a UAV platform described in the present invention, the skyport shaft specifically includes: a skyport V2 rotating ring, a shaft, an M2.5 threaded through hole, an M2.5×10 threaded hole, a limit groove, an arc surface, a threading hole, and a column; Insert the skyport V2 electronic cable into the plug-in interface at the bottom of the skyport V2 rotating ring, and pass the other end through the threading hole of the shaft. Use 4 M2.5×12mm screws to lock the skyport V2 rotating ring on the shaft. The 11mm diameter threading hole is used for the smooth routing of the Skyport V2 electronic cable. There are 6.2mm diameter and 1.5mm deep limit grooves on both sides of the shaft for connection and fixation with the main body of the ultrasonic partial discharge detector. The M2.5 threaded through holes on both sides of the shaft can be used to tighten two M2.5 screws, which cooperate with the notches on both sides of the rear shell of the main body of the ultrasonic partial discharge detector to achieve the adjustment of the main body angle of the ultrasonic partial discharge detector from 45 degrees to 90 degrees.

[0009] As a preferred solution of an ultrasonic partial discharge detector carried on an unmanned aerial vehicle platform described in the present invention, the position of the rear shell is provided with a 10.5mm diameter column, an 8mm high column, a 23mm×23mm high 1mm column, a 16mm long 6.2mm wide through hole, a 3.2mm through hole, an M2×10mm threaded hole, a 27×27 high 2.7mm column, an 8mm×8mm high 4.7mm column, a 21mm radius arc groove, an M6 threaded through hole, a 5mm width 45 degree angle straight slot, a 2mm thickness 20mm depth groove, and a 7.5mm diameter 33.3mm depth circular groove; The 23mm×23mm 1mm high column, the 27×27 2.7mm high column, and the 8mm×8mm 4.7mm high column are heat-conducting columns, which are covered with heat-conducting silicone and connected to the heating element housing on the computer control board.

[0010] As a preferred solution of an ultrasonic partial discharge detector mounted on a UAV platform described in the present invention, the microphone array unit specifically includes: a visible light camera, an M2 nut, an M3×6 screw, an array pressing sheet, an M2×5 screw, an array rear sealing gasket, a microphone array board, an array front sealing gasket, and a front shell; Among them, the array front sealing gasket, microphone array board and array rear sealing gasket are placed in the front shell in sequence, the holes of the microphones are opposite to each other, and the four M2 hexagonal copper pillars are locked on the back of the array pressing plate by M2×5 screws. The visible light camera is passed through the square hole in the center of the array pressing plate, and the mounting holes at the four corners are turned through the other end of the hexagonal copper pillars and fixed with M2 nuts. The pressing plate is pressed on the array rear sealing gasket, and the holes are opposite to each other. The array pressing plate is pressed and fixed on the mounting column of the front shell with M3×6 screws.

[0011] As a preferred solution of the ultrasonic partial discharge detector carried on an unmanned aerial vehicle platform described in the present invention, the array pressing sheet is respectively provided with a 6mm diameter 13mm high column, a 29.5mm×4.2mm rectangular groove, an M2.5×10 threaded hole, a 3.2mm diameter through hole, a 16.7mm×16.7mm rectangular hole, and a 2.7mm diameter through hole.

[0012] As a preferred solution of the ultrasonic partial discharge detector carried on the UAV platform described in the present invention, the front shell is provided with a 10mm diameter 14mm high column, a 7.2mm diameter 4.5mm high column, a 15.5mm diameter through hole, a 2mm diameter 6mm deep circular hole, a 2.4mm deep 14mm circular hole, an M2 threaded through hole, and a 3.5mm diameter through hole; The array front sealing gasket is provided with a through hole with a diameter of 7.5 mm, a through hole with a diameter of 3.5 mm, and a through hole with a diameter of 16 mm; The array rear sealing gasket is provided with a through hole with a diameter of 7.5 mm, a rectangular through hole with a diameter of 29.5 mm×4.2 mm, and a through hole with a diameter of 20 mm.

[0013] As a preferred solution of the ultrasonic partial discharge detector mounted on an unmanned aerial vehicle platform described in the present invention, it also includes an unmanned aerial vehicle and a mounting frame, and the ultrasonic partial discharge detector body and the silencer structure are mounted on the mounting frame on the bottom of the unmanned aerial vehicle.

[0014] Compared with the prior art, the advantages of the present invention are: By optimizing the structural design of drones and pairing them with intelligent inspection equipment, workers can control the drones to fly along the equipment or lines to be inspected, and promptly discover safety hazards or fault points such as damaged points, local discharge points, and heat points along the way. While quickly completing the inspection work, it can improve detection accuracy, thereby improving the reliability of normal operation of the transmission line. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail below in combination with the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them: Figure 1 This is a structural diagram of the UAV mount of the present invention; Figure 2 It is a position structure diagram of the main body of the ultrasonic partial discharge detector of the present invention; Figure 3 is a structural diagram of the rotating shaft of the present invention; Figure 4 It is the position structure diagram of the threading hole of the present invention; Figure 5 It is a structural diagram of the muffler barrel of the present invention; Figure 6 It is a structural diagram of the rear housing of the present invention; Figure 7 This is a diagram showing the hole distribution structure inside the rear housing of the present invention; Figure 8 This is an external view of the rear housing of the present invention; Fig. 9 This is a position structure diagram of the visible light camera of the present invention; Fig.10 This is a diagram of the internal structure of the array tablet of the present invention; Fig.11 This is an appearance diagram of the front housing of the present invention; Fig.12 This is an appearance diagram of the front sealing gasket of the array of the present invention; Fig.13 This is an appearance diagram of the sealing gasket behind the array of the present invention; Fig.14 This is a principle block diagram of the present invention.

[0016] In the figure: 1. UAV; 2. Mounting frame; 3. Silencing structure; 4. Ultrasonic partial discharge detector body; 5. Skyport shaft; 6. M2.5×6 screw; 7. M2.5×6 screw; 8. M6×10 screw; 9. M6×10 thumb screw; 3-1. Silencer barrel; 3-2. Limit pin; 3-3. M2.5 screw hole; 3-4. Through hole; 4-1. Rear shell; 4-2. Power adapter board; 4-3. M2×5 screw; 4-4. M3×12 screw; 4-5. M2.5×6 screw; 4-6. Computer control board; 4-7. Microphone array unit; 5-1. Skyport V2 rotating ring; 5-2, rotating shaft; 5-3, M2.5 threaded through hole; 5-4, M2.5×10 threaded hole; 5-5, limiting groove; 5-6, arc surface; 5-7, threading hole; 5-8, cylinder; 4-1-1, 10.5mm diameter cylinder; 4-1-2, 8mm high cylinder; 4-1-3, 23mm×23mm high 1mm cylinder; 4-1-4, 16mm long 6.2mm wide through hole; 4-1-5, 3.2mm through hole; 4-1-6, M2×10mm threaded hole; 4-1-7, 27×27 high 2.7m m cylinder; 4-1-8, 8mm×8mm height 4.7mm cylinder; 4-1-9, radius 21mm arc groove; 4-1-10, M6 threaded through hole; 4-1-11, width 5mm angle 45 degree straight slot; 4-1-12, thickness 2mm depth 20mm groove; 4-1-13, diameter 7.5mm depth 33.3mm circular groove; 4-7-1, visible light camera; 4-7-2, M2 nut; 4-7-3, M3×6 screw; 4-7-4, array pressing piece; 4-7-5, M2×5 screw; 4-7-6, array rear sealing gasket ; 4-7-7, microphone array board; 4-7-8, array front gasket; 4-7-9, front shell; 4-7-4-1, 6mm diameter 13mm height column; 4-7-4-2, 29.5mm×4.2mm rectangular groove; 4-7-4-3, M2.5×10 threaded hole; 4-7-4-4, 3.2mm diameter through hole; 4-7-4-5, 16.7mm×16.7mm rectangular hole; 4-7-4-6, 2.7mm diameter through hole; 4-7-9-1, 10mm diameter 14mm height column; 4-7-9-2, diameter 7.2mm high 4.5mm column; 4-7-9-3, 15.5mm diameter through hole; 4-7-9-4 2mm diameter 6mm deep round hole; 4-7-9-5 2.4mm deep 14mm round hole; 4-7-9-6, M2 threaded through hole; 4-7-9-7 3.5mm diameter through hole; 4-7-8-1, 7.5mm diameter through hole; 4-7-8-2, 3.5mm diameter through hole; 4-7-8-3, 16mm diameter through hole; 4-7-6-1, 7.5mm diameter through hole; 4-7-6-2, 29.5mm×4.2mm rectangular through hole; 4-7-6-3, 20mm diameter through hole. . DETAILED DESCRIPTION

[0017] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0018] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0019] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagram showing the device structure will not be partially enlarged according to the general scale, and the schematic diagram is only an example, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional space dimensions of length, width and depth should be included.

[0020] In order to make the objectives, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0021] The present invention provides an ultrasonic partial discharge detector mounted on an unmanned aerial vehicle platform. By optimizing the structural design of the unmanned aerial vehicle and matching the unmanned aerial vehicle with intelligent inspection equipment, the staff can control the unmanned aerial vehicle to fly along the equipment or line to be inspected, so as to timely discover the safety hazards or fault points such as damaged points, partial discharge points, and heating points along the way. The inspection work can be completed quickly while the detection accuracy is improved, thereby improving the reliability of the normal operation of the transmission line.

[0022] Figure 1-Figure 14 The figure shows the overall structure of an ultrasonic partial discharge detector mounted on an unmanned aerial vehicle platform according to an embodiment of the present invention. Figure 1-14 The main structure of this embodiment includes: an ultrasonic partial discharge detector body (4), a muffler structure (3), a skyport shaft (5), an M2.5×6 screw (6), an M2.5×6 screw (7), an M6×10 screw (8) and an M6×10 thumb screw (9); The skyport shaft (5) is locked to the rear end of the ultrasonic partial discharge detector body (4) by means of an M6×10 screw (8) and an M6×10 thumb screw (9), and is locked by means of an M2.5×6 screw (7) penetrating through notches on both sides of the rear end of the ultrasonic partial discharge detector body (4); When in use, the staff takes out the drone 1 from the packaging box, places it on the ground and unfolds its wings, then takes out the partial discharge detector body 4 from the packaging box, inserts the Skyport V2 rotating ring 5-1 into the plug-in interface of the mounting frame 2 and tightens it. The installation result is as follows: Figure 1 As shown, when working, the staff only needs to turn on the power switch of the drone 1, take out the remote control and turn it on, and use the remote control to control the drone 1 to fly along the high-voltage line or equipment to be inspected. At this time, the staff can observe the visible light and ultrasonic detection results in real time through the drone remote control. When the inspection is over, the staff controls the drone to return and land, and turns off the power of the drone to complete a drone power inspection. The part mounted and connected to the drone uses DJI SkyPort adapter ring 5-1 to achieve hardware connection and data communication. The circuit part is based on the single-probe ultrasonic partial discharge detector, and has replaced a more powerful computer system. The acoustic imaging module has been increased from the original single channel to a 128-channel acoustic imaging module. It also has a visible light imaging module and a power module. For the specific principle block diagram, see Fig.14 The core of the device control is the computer system. The acoustic imaging module transcodes, filters, and processes the sound wave signals collected by the 128-channel microphone array, and then sends them to the computer system through the network port communication. The computer system calculates and analyzes the signal, and finally obtains the relative sound pressure of each grid on the screen. With the visible light module to collect the picture, a holographic color map of the noise source location can be obtained. The computer system is connected to the PSDK interface of the skyport v2 rotating ring to realize data communication with the drone 1 platform. Using the remote control of the drone 1, we can observe the detection results in real time and realize remote control of the equipment. The drone 1 provides the corresponding power input for the computer and peripheral modules through the power module. In this way, through the effective noise reduction design in the structure, the 128-channel microphone array obtains the ultrasonic signal, generates the acoustic image through software filtering, and then combines it with the visible light imaging and sends it to the drone platform. The target detection and analysis management in the process of manual inspection can be realized through the drone remote control technology, which effectively reduces the work intensity and difficulty of the inspection personnel.

[0023] Furthermore, the muffler structure 3 specifically includes: a muffler barrel 3-1, a limit pin 3-2, an M2.5 screw hole 3-3, and a through hole 3-4 with a length of 12 mm and a width of 1.8 mm; The limit pin 3-2 cooperates with the corresponding notch on the main body 4 of the ultrasonic partial discharge detector to lock the silencer barrel 3-1. The small end of the silencer barrel 3-1 is nested on the main body 4 of the ultrasonic partial discharge detector and is locked on the main body 4 of the ultrasonic partial discharge detector through the M2.5 screw hole 3-3. During actual use, the sound-absorbing material is adhered to the inside of the silencer barrel 3-1, which is nested on the device body through the limit pin 3-2 and fixed by 7 M2.5×6 screws.

[0024] Furthermore, the ultrasonic partial discharge detector body 4 specifically includes: a rear housing 4-1, a power adapter board 4-2, M2×5 screws 4-3, M3×12 screws 4-4, M2.5×6 screws 4-5, a computer control board 4-6, and a microphone array unit 4-7; During actual use, the power adapter board 4-2 is fastened to the rear shell 4-1 by M2×5 screws 4-3, the computer control board 4-6 is plugged into the microphone array unit 4-7, and is fastened to the microphone array unit 4-7 by M2.5×6 screws 4-5 to form the main body of the device.

[0025] Furthermore, the heat sink of the rear housing 4-1 is affixed with thermally conductive silicone, pressed onto the computer control board 4-6, and is fastened to the microphone array unit 4-7 by four M3×12 screws 4-4 passing through the mounting holes of the rear housing 4-1.

[0026] Further, the skyport shaft 5 specifically includes: a skyport V2 rotating ring 5-1, a shaft 5-2, an M2.5 threaded through hole 5-3, an M2.5×10 threaded hole 5-4, a limit groove 5-5, an arc surface 5-6, a threading hole 5-7, and a column 5-8; When in use, the skyport V2 electronic cable is inserted into the plug-in interface at the bottom of the skyport V2 rotating ring 5-1, and the other end passes through the threading hole 5-7 of the rotating shaft 5-2, and the skyport V2 rotating ring 5-1 is locked on the rotating shaft 5-2 with 4 M2.5×12mm screws; the threading hole 5-7 with a diameter of 11mm is used for the smooth routing of the skyport V2 electronic cable, and there are limit grooves 5-5 with a diameter of 6.2mm and a depth of 1.5mm on both sides of the rotating shaft 5-2, which are used for connection and fixation with the ultrasonic partial discharge detector body 4, and the M2.5 threaded through holes 5-3 on both sides of the rotating shaft 5-2 can tighten two M2.5 screws, which cooperate with the notches on both sides of the rear shell 4-1 in the ultrasonic partial discharge detector body 4 to achieve the adjustment of the angle of the ultrasonic partial discharge detector body 4 from 45 degrees to 90 degrees.

[0027] Further, the rear shell 4-1 is provided with a 10.5mm diameter cylinder 4-1-1, an 8mm high cylinder 4-1-2, a 23mm×23mm 1mm high cylinder 4-1-3, a 16mm long 6.2mm wide through hole 4-1-4, a 3.2mm through hole 4-1-5, an M2×10mm threaded hole 4-1-6, a 27×27 2.7mm high cylinder 4-1-7, an 8mm×8mm 4.7mm high cylinder 4-1-8, a 21mm radius arc groove 4-1-9, an M6 threaded through hole 4-1-10, a 5mm width 45 degree angle straight slot 4-1-11, a 2mm thick 20mm deep slot 4-1-12, and a 7.5mm diameter 33.3mm deep circular groove 4-1-13; The 23mm×23mm high 1mm column 4-1-3, the 27×27 high 2.7mm column 4-1-7, and the 8mm×8mm high 4.7mm column 4-1-8 are heat-conducting columns, which are covered with heat-conducting silicone and connected to the housing of the heating element on the computer control board 4-6; In specific use, there is a 10.5mm diameter column 4-1-1 at each of the four corners of the rear housing 4-1. Through the 3.2mm diameter through hole 4-1-5 on the upper part, the rear housing 4-1 can be fastened to the front housing 4-7-9 of the microphone array unit 4-7 with M3×12 screws 4-4. The back of the rear housing 4-1 has a 2mm thick 20mm deep groove 4-1-12, which increases the heat dissipation area of ​​the device and achieves good heat dissipation. There is an outwardly extending shaft fixing frame on the back of the rear housing 4-1. There is an arc-shaped groove 4-1-9 with a radius of 21mm inside the shaft fixing frame, which cooperates with the arc surface with a radius of 20.5mm on the lower side of the shaft to achieve unobstructed rotation when the angle of the device body is adjusted. The M6 ​​threaded through holes 4-1-10 on both sides of the shaft fixing frame cooperate with the 6.2 diameter grooves on both sides of the shaft, and the rotation and locking between the shaft and the body are achieved through M6 screws and hand screws. There are 5mm wide and 45 degree straight slots 4-1-11 on both sides of the shaft fixing frame, which can be used with the M2.5 screws fixed on both sides of the shaft to limit the rotation angle of the main body.

[0028] Further, the microphone array unit 4-7 specifically includes: a visible light camera 4-7-1, an M2 nut 4-7-2, an M3×6 screw 4-7-3, an array pressing plate 4-7-4, an M2×5 screw 4-7-5, an array rear sealing gasket 4-7-6, a microphone array plate 4-7-7, an array front sealing gasket 4-7-8, and a front shell 4-7-9; During specific use, the array front sealing gasket 4-7-8, the microphone array board 4-7-7 and the array rear sealing gasket 4-7-6 are placed in the front shell 4-7-9 in sequence, with the holes of the microphones facing each other. The four M2 hexagonal copper pillars are locked on the back of the array pressing plate 4-7-4 by M2×5 screws 4-7-5. The visible light camera 4-7-1 is passed through the square hole in the center of the array pressing plate 4-7-4. The mounting holes at the four corners are turned through the other end of the hexagonal copper pillars and fixed with M2 nuts 4-7-2. The pressing plate is pressed on the array rear sealing gasket 4-7-6, with the holes facing each other. The array pressing plate 4-7-4 is pressed and fixed on the mounting column of the front shell 4-7-9 by M3×6 screws 4-7-3 to form a complete microphone array unit 4-7. The microphone array board 4-7-6 is softly connected to the shell through the front and rear sealing gaskets, which not only provides sound insulation but also effectively avoids interference caused by the vibration of the flight process.

[0029] Furthermore, the array pressing sheet 4-7-4 is respectively provided with a column 4-7-4-1 with a diameter of 6 mm and a height of 13 mm, a rectangular groove 4-7-4-2 with a diameter of 29.5 mm × 4.2 mm, an M2.5 × 10 threaded hole 4-7-4-3, a through hole 4-7-4-4 with a diameter of 3.2 mm, a rectangular hole 4-7-4-5 with a diameter of 16.7 mm × 16.7 mm, and a through hole 4-7-4-6 with a diameter of 2.7 mm; In specific use, the main body of the array pressing plate 4-7-4 is made by milling aluminum alloy bars. The 16.7mm×16.7mm rectangular hole 4-7-4-5 is used to fix the visible light camera 4-7-1. The 2.7mm diameter through hole 4-7-4-6 is used with M2 screws and hexagonal copper columns to fix the visible light camera circuit board. The two 29.5mm×4.2mm rectangular slots 4-7-4-2 are the limit holes for the two communication terminals of the 128-channel microphone array board 4-7-6. Four 3.2mm diameter through holes 4-7-4-4 are used with M3 screws to fasten the array pressing plate 4-7-4 to the front shell 4-7-9. The 6mm diameter and 13mm high column 4-7-4-1 and its upper M2.5×10 threaded hole 4-7-4-3 can support and fix the computer control board.

[0030] Furthermore, the front shell 4-7-9 is provided with a column 4-7-9-1 with a diameter of 10 mm and a height of 14 mm, a column 4-7-9-2 with a diameter of 7.2 mm and a height of 4.5 mm, a through hole 4-7-9-3 with a diameter of 15.5 mm, a circular hole 4-7-9-4 with a diameter of 2 mm and a depth of 6 mm, a circular hole 4-7-9-5 with a depth of 2.4 mm and a depth of 14 mm, an M2 threaded through hole 4-7-9-6, and a through hole 4-7-9-7 with a diameter of 3.5 mm; The array front sealing gasket 4-7-8 is provided with a through hole 4-7-8-1 with a diameter of 7.5 mm, a through hole 4-7-8-2 with a diameter of 3.5 mm, and a through hole 4-7-8-3 with a diameter of 16 mm; The array rear sealing gasket 4-7-6 is provided with a through hole 4-7-6-1 with a diameter of 7.5 mm, a rectangular through hole 4-7-6-2 with a diameter of 29.5 mm × 4.2 mm, and a through hole 4-7-6-3 with a diameter of 20 mm; In actual use, the main body of the front shell 4-7-9 is made of primary color ABS material 3D printed and then painted. There are 128 through holes 4-7-9-7 with a diameter of 3.5mm inside, corresponding to the pickup holes of each microphone on the microphone array board 4-7-7, which have a waveguide effect. The through hole 4-7-9-3 with a center diameter of 15.5mm is the lens hole of the visible light camera 4-7-1. Four columns 4-7-9-2 with a diameter of 7.2mm and a height of 4.5mm and their upper circular holes with a diameter of 2mm and a depth of 6mm are used to fix the array pressing plate 4-7-4 with M3 self-tapping screws. There is a column 4-7-9-1 with a diameter of 10mm and a height of 14mm at each of the four corners of the front shell 4-7-9, and the upper part is a circular hole of 2.4mm and a depth of 14mm, which is used to be fastened to the rear shell 4-1 with M3 self-tapping screws; The array front sealing gasket 4-7-8 is stamped from 2mm thick PORON foam. The middle 16mm diameter through hole 4-7-8-3 is the lens hole of the visible light camera 4-7-1. The 128 3.5mm diameter through holes correspond to the pickup holes of each microphone on the microphone array board 4-7-6, and have a wave-guiding effect. The 7.5mm diameter through hole 4-7-8-1 is the limit hole of the mounting column of the front shell 4-7-9. The array front sealing gasket 4-7-8 plays a role of sealing and shock absorption in the entire microphone array unit 4-7, further reducing the interference of external noise and vibration on the effective signal, and improving the accuracy of ultrasonic detection; The array front seal 4-7-8 is stamped from 1mm thick PORON foam. The middle 20mm diameter through hole 4-7-6-3 is the lens hole of the visible light camera 4-7-1. The 7.5mm diameter through hole 4-7-6-1 is the limit hole for the mounting column of the front shell 4-7-9. The two 29.5mm×4.2mm rectangular grooves 4-7-6-2 are the limit holes for the communication interface of the microphone array board 4-7-7. The array rear seal plays a role in sealing and shock absorption in the entire microphone array unit 4-7, further reducing the interference of external noise and vibration on the effective signal and improving the accuracy of ultrasonic detection.

[0031] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced by equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An ultrasonic partial discharge detector mounted on an unmanned aerial vehicle platform, characterized in that: include: Ultrasonic partial discharge detector body (4), silencer structure (3), skyport shaft (5), M2.5×6 screw (6), M2.5×6 screw (7), M6×10 screw (8) and M6×10 thumb screw (9); The skyport shaft (5) is locked to the rear end of the ultrasonic partial discharge detector body (4) by means of an M6×10 screw (8) and an M6×10 thumb screw (9), and is locked by means of an M2.5×6 screw (7) penetrating through notches on both sides of the rear end of the ultrasonic partial discharge detector body (4).

2. The ultrasonic partial discharge detector mounted on an unmanned aerial vehicle platform according to claim 1, characterized in that: The muffler structure (3) specifically comprises: a muffler barrel (3-1), a limit pin (3-2), an M2.5 screw hole (3-3) and a through hole (3-4) with a length of 12 mm and a width of 1.8 mm; The limit pin (3-2) cooperates with the corresponding notch on the ultrasonic partial discharge detector body (4) to lock the silencer barrel (3-1), and the small end of the silencer barrel (3-1) is nested on the ultrasonic partial discharge detector body (4) and locked on the ultrasonic partial discharge detector body (4) through the M2.5 screw hole (3-3).

3. The ultrasonic partial discharge detector mounted on an unmanned aerial vehicle platform according to claim 2, characterized in that: The ultrasonic partial discharge detector body (4) specifically comprises: a rear shell (4-1), a power adapter plate (4-2), M2×5 screws (4-3), M3×12 screws (4-4), M2.5×6 screws (4-5), a computer control board (4-6), and a microphone array unit (4-7); The power adapter board (4-2) is fastened to the rear housing (4-1) via M2×5 screws (4-3); the computer control board (4-6) is plugged into the microphone array unit (4-7) and fastened to the microphone array unit (4-7) via M2.5×6 screws (4-5).

4. The ultrasonic partial discharge detector mounted on an unmanned aerial vehicle platform according to claim 3, characterized in that: The heat dissipation platform of the rear housing (4-1) is affixed with thermally conductive silicone and pressed onto the computer control board (4-6), and is locked onto the microphone array unit (4-7) by passing four M3×12 screws (4-4) through the mounting holes of the rear housing (4-1).

5. The ultrasonic partial discharge detector mounted on an unmanned aerial vehicle platform according to claim 4, characterized in that: The skyport shaft (5) specifically comprises: a skyport V2 rotating ring (5-1), a shaft (5-2), an M2.5 threaded through hole (5-3), an M2.5×10 threaded hole (5-4), a limiting groove (5-5), an arc surface (5-6), a threading hole (5-7), and a column (5-8).

6. The ultrasonic partial discharge detector mounted on an unmanned aerial vehicle platform according to claim 5, characterized in that: The rear housing (4-1) is provided with a 10.5mm diameter column (4-1-1), an 8mm high column (4-1-2), a 23mm×23mm 1mm high column (4-1-3), a 16mm long 6.2mm wide through hole (4-1-4), a 3.2mm through hole (4-1-5), an M2×10mm threaded hole (4-1-6), a 27×27 2.7mm high column (4-1-7), an 8mm×8mm 4.7mm high column (4-1-8), a 21mm radius arc groove (4-1-9), an M6 threaded through hole (4-1-10), a 5mm width 45 degree angle straight notch (4-1-11), a 2mm thick 20mm deep groove (4-1-12), and a 7.5mm diameter 33.3mm deep circular groove (4-1-13); The 23mm×23mm high 1mm column (4-1-3), 27×27 high 2.7mm column (4-1-7), and 8mm×8mm high 4.7mm column (4-1-8) are heat-conducting columns, which are covered with heat-conducting silicone and connected to the heating element housing on the computer control board (4-6).

7. The ultrasonic partial discharge detector mounted on an unmanned aerial vehicle platform according to claim 6, characterized in that: The microphone array unit (4-7) specifically comprises: a visible light camera (4-7-1), an M2 nut (4-7-2), an M3×6 screw (4-7-3), an array pressing sheet (4-7-4), an M2×5 screw (4-7-5), an array rear sealing gasket (4-7-6), a microphone array plate (4-7-7), an array front sealing gasket (4-7-8), and a front housing (4-7-9); Among them, the array front sealing gasket (4-7-8), microphone array plate (4-7-7) and array rear sealing gasket (4-7-6) are placed in the front shell (4-7-9) in sequence, with the holes of the microphones facing each other. Four M2 hexagonal copper pillars are locked on the back of the array pressing plate (4-7-4) by M2×5 screws (4-7-5). The visible light camera (4-7-1) is passed through the square hole in the center of the array pressing plate (4-7-4). The mounting holes at the four corners are turned through the other end of the hexagonal copper pillars and fixed with M2 nuts (4-7-2). The pressing plate is pressed on the array rear sealing gasket (4-7-6), with the holes facing each other. The array pressing plate (4-7-4) is pressed and fixed on the mounting column of the front shell (4-7-9) by M3×6 screws (4-7-3).

8. The ultrasonic partial discharge detector mounted on an unmanned aerial vehicle platform according to claim 7, characterized in that: The array pressing sheet (4-7-4) is respectively provided with a column (4-7-4-1) with a diameter of 6 mm and a height of 13 mm, a rectangular groove (4-7-4-2) with a diameter of 29.5 mm×4.2 mm, an M2.5×10 threaded hole (4-7-4-3), a through hole (4-7-4-4) with a diameter of 3.2 mm, a rectangular hole (4-7-4-5) with a diameter of 16.7 mm×16.7 mm, and a through hole (4-7-4-6) with a diameter of 2.7 mm.

9. The ultrasonic partial discharge detector mounted on an unmanned aerial vehicle platform according to claim 8, characterized in that: The front housing (4-7-9) is provided with a column (4-7-9-1) with a diameter of 10 mm and a height of 14 mm, a column (4-7-9-2) with a diameter of 7.2 mm and a height of 4.5 mm, a through hole (4-7-9-3) with a diameter of 15.5 mm, a circular hole (4-7-9-4) with a diameter of 2 mm and a depth of 6 mm, a circular hole (4-7-9-5) with a depth of 2.4 mm and 14 mm, an M2 threaded through hole (4-7-9-6), and a through hole (4-7-9-7) with a diameter of 3.5 mm; The array front sealing gasket (4-7-8) is provided with a through hole (4-7-8-1) with a diameter of 7.5 mm, a through hole (4-7-8-2) with a diameter of 3.5 mm, and a through hole (4-7-8-3) with a diameter of 16 mm; The array rear sealing gasket (4-7-6) is provided with a through hole (4-7-6-1) with a diameter of 7.5 mm, a rectangular through hole (4-7-6-2) with a diameter of 29.5 mm×4.2 mm, and a through hole (4-7-6-3) with a diameter of 20 mm.

10. The ultrasonic partial discharge detector mounted on an unmanned aerial vehicle platform according to claim 9, characterized in that: It also includes an unmanned aerial vehicle (1) and a mounting frame (2), wherein the ultrasonic partial discharge detector body (4) and the noise reduction structure (3) are mounted on the mounting frame (2) on the bottom surface of the unmanned aerial vehicle (1).

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