Ultrasonic partial discharge detector carried on unmanned aerial vehicle platform

Abstract

The utility model 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 and matching the unmanned aerial vehicle with the intelligent inspection equipment, a worker can control the unmanned aerial vehicle to fly along equipment or a line to be inspected, so that potential safety hazards or fault points such as damage points, partial discharge points, heating points and the like on the way can be found in time, the inspection work can be quickly completed, and the working efficiency is improved. Therefore, the reliability of normal operation of the power transmission line is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to partial discharge detection technical field, concretely is a kind of ultrasonic partial discharge detector carried on unmanned aerial vehicle platform. BACKGROUND

[0002] With the development of national economy, the improvement of people's living standards, the power consumption of our country is increasing, and the distance of transmission line also shows an upward trend. However, natural disasters, equipment failure, external damage, improper operation and many other factors can cause damage to the transmission line, causing electric shock accidents. Therefore, the daily maintenance of the transmission line is one of the important methods to protect the normal operation of the power system. The traditional circuit inspection work is mainly completed by manual work. When the inspection work in special areas such as mountainous areas, hilly areas and deserts is carried out, not only the work is heavy and time-consuming, but also the problem checking accuracy is not high, and even there may be a situation of endangering personal safety. SUMMARY

[0003] Therefore, the utility model aims at providing a kind of ultrasonic partial discharge detector carried on unmanned aerial vehicle platform, by optimizing the structure design of unmanned aerial vehicle, by unmanned aerial vehicle and intelligent inspection equipment, the operator can control unmanned aerial vehicle to fly along the equipment or line to be inspected, so as to timely find the safety hazards or fault points such as broken point, partial discharge point and heating point along the way, can complete the inspection work quickly, improve the detection accuracy, and improve the reliability of the normal operation of the transmission line.

[0004] To solve the above technical problems, according to one aspect of the utility model, the utility model provides the following technical scheme: an ultrasonic partial discharge detector carried on unmanned aerial vehicle platform, comprising: ultrasonic partial discharge detector main body, sound reduction structure, skyport shaft, M2.5×6 screw, M2.5×6 screw, M6×10 screw and M6×10 hand screw;

[0005] The skyport shaft is locked at the rear end of the ultrasonic partial discharge detector main body by M6×10 screw and M6×10 hand screw, and is locked by M2.5×6 screw through the slot on both sides of the rear end of the ultrasonic partial discharge detector main body.

[0006] As a preferred scheme of the ultrasonic partial discharge detector carried on unmanned aerial vehicle platform, the sound reduction structure specifically comprises: sound reduction barrel, limiting pin, M2.5 screw hole and long 12mm wide 1.8mm through hole;

[0007] The limiting pin is matched with the corresponding slot on the ultrasonic partial discharge detector main body to lock the sound reduction barrel, the small end of the sound reduction barrel is nested on the ultrasonic partial discharge detector main body, and is locked on the ultrasonic partial discharge detector main body by M2.5 screw hole.

[0008] As a kind of preferred scheme of the ultrasonic partial discharge detector carried on unmanned aerial vehicle platform of the utility model, wherein, the ultrasonic partial discharge detector main body specifically includes: rear shell, power adapter board, M2×5 screw, M3×12 screw, M2.5×6 screw, computer control board, microphone array unit;

[0009] The power adapter board is locked with the rear shell by M2×5 screw, the computer control board is plugged with the microphone array unit, and is locked on the microphone array unit by M2.5×6 screw.

[0010] As a kind of preferred scheme of the ultrasonic partial discharge detector carried on unmanned aerial vehicle platform of the utility model, wherein, the rear shell heat dissipation platform is pasted with heat-conducting silica gel, and is attached on computer control board, and is locked on microphone array unit by 4 M3×12 screws passing through the mounting hole of rear shell.

[0011] As a kind of preferred scheme of the ultrasonic partial discharge detector carried on unmanned aerial vehicle platform of the utility model, wherein, the skyport rotating shaft specifically includes: skyport V2 rotating ring, rotating shaft, M2.5 threaded hole, M2.5×10 threaded hole, limiting groove, circular surface, threading hole, cylinder;

[0012] Skyport V2 electronic flat cable is inserted into the plug-in interface at the lower part of skyport V2 rotating ring, and the other end passes through the threading hole of rotating shaft, and 4 M2.5×12mm screws are used to lock skyport V2 rotating ring on rotating shaft;

[0013] Threading hole with diameter of 11mm is used for the smooth wiring of skyport V2 electronic flat cable, limiting groove with diameter of 6.2mm and depth of 1.5mm is arranged on both sides of rotating shaft, for connection and fixation with ultrasonic partial discharge detector main body, M2.5 threaded hole on both sides of rotating shaft can be screwed with two M2.5 screws, cooperate with the slot on both sides of rear shell in ultrasonic partial discharge detector main body, realize the adjustment of ultrasonic partial discharge detector main body angle from 45 degrees to 90 degrees.

[0014] As a kind of preferred scheme of the ultrasonic wave partial discharge detector carried on unmanned aerial vehicle platform provided in the utility model, wherein, the position of the rear shell is provided with 10.5mm diameter column, 8mm high column, 23mm×23mm high 1mm column, 16mm long 6.2mm wide through hole, 3.2mm through hole, M2×10mm threaded hole, 27×27 high 2.7mm column, 8mm×8mm high 4.7mm column, radius 21mm arc-shaped slot, M6 threaded through hole, width 5mm angle 45 degree straight slot, thickness 2mm depth 20mm slot, diameter 7.5mm depth 33.3mm circular slot;

[0015] The column of the 23mm×23mm high 1mm column, 27×27 high 2.7mm column and 8mm×8mm high 4.7mm column is a heat-conducting column, and is connected with the heat element shell on the computer control panel by being pasted with heat-conducting silica gel.

[0016] As a kind of preferred scheme of the ultrasonic wave partial discharge detector carried on unmanned aerial vehicle platform provided in the utility model, wherein, the microphone array unit specifically comprises: visible light camera, M2 nut, M3×6 screw, array pressing sheet, M2×5 screw, array rear sealing gasket, microphone array plate, array front sealing gasket and front shell.

[0017] The array front sealing gasket, the microphone array plate and the array rear sealing gasket are sequentially placed in the front shell in order, the hole positions of the microphones are opposite to each other, four M2 hexagonal copper columns are locked at the back of the array pressing sheet by the M2×5 screw, the visible light camera passes through the square hole in the center of the array pressing sheet, the mounting holes at four corners are turned to the other end of the hexagonal copper column, and the visible light camera is fixed by the M2 nut; the array pressing sheet is pressed on the array rear sealing gasket, the hole positions are opposite to each other, and the array pressing sheet is pressed and fixed on the mounting column of the front shell by the M3×6 screw.

[0018] As a kind of preferred scheme of the ultrasonic wave partial discharge detector carried on unmanned aerial vehicle platform provided in the utility model, wherein, the array pressing sheet is respectively provided with 6mm diameter high 13mm column, 29.5mm×4.2mm rectangular slot, M2.5×10 threaded hole, 3.2mm diameter through hole, 16.7mm×16.7mm rectangular hole and 2.7mm diameter through hole.

[0019] As a kind of preferred scheme of the ultrasonic wave partial discharge detector carried on unmanned aerial vehicle platform provided in the utility model, wherein, the front shell is provided with 10mm diameter high 14mm column, 7.2mm diameter high 4.5mm column, 15.5mm diameter through hole, 2mm diameter 6mm deep circular hole, 2.4mm deep 14mm circular hole, M2 threaded through hole and 3.5mm diameter through hole.

[0020] 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;

[0021] 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.

[0022] As a preferred solution of the ultrasonic partial discharge detector mounted on an unmanned aerial vehicle platform described in the utility model, it also includes a unmanned aerial vehicle and a mounting rack, and the ultrasonic partial discharge detector body and the silencer structure are mounted on the mounting rack on the bottom surface of the unmanned aerial vehicle.

[0023] Compared with the prior art, the advantages of the present invention are:

[0024] 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, partial discharge points, and heat points along the way. This allows them to quickly complete inspections while improving detection accuracy, thereby increasing the reliability of normal operation of transmission lines. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] 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 conjunction with the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without inventive labor. Among them:

[0026] Figure 1 This is a structural diagram of the UAV mount of the utility model;

[0027] Figure 2 This is a positional structural diagram of the main body of the ultrasonic partial discharge detector of the utility model;

[0028] Figure 3 This is a structural diagram of the rotating shaft of the utility model;

[0029] Figure 4 This is a structural diagram of the position of the threading hole of the utility model;

[0030] Figure 5 This is a structural diagram of the silencer barrel of the utility model;

[0031] Figure 6 This is a structural diagram of the rear housing of the utility model;

[0032] Figure 7 This is a diagram showing the hole distribution structure inside the rear shell of the present invention;

[0033] Figure 8 It is the appearance view of the front shell body of the utility model;

[0034] Figure 9 It is the position structure view of the visible light camera of the utility model;

[0035] Figure 10 It is the internal structure view of the array tablet press of the utility model;

[0036] Figure 11 It is the appearance view of the front shell body of the utility model;

[0037] Figure 12 It is the appearance view of the array front sealing gasket of the utility model;

[0038] Figure 13 It is the appearance view of the array rear sealing gasket of the utility model;

[0039] Figure 14 It is the principle block diagram of the utility model.

[0040] Figure: 1. UAV; 2. Mounting bracket; 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 housing; 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, 1mm high 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, 2.7mm high m cylinder; 4-1-8, 8mm×8mm cylinder, 4.7mm high; 4-1-9, 21mm radius arc groove; 4-1-10, M6 threaded through hole; 4-1-11, 5mm width straight notch, 45-degree angle; 4-1-12, 2mm thickness, 20mm depth groove; 4-1-13, 7.5mm diameter, 33.3mm depth circular groove; 4-7-1, visible light camera; 4-7-2, M2 nut; 4-7-3, M3×6 screw; 4-7-4, array pressure plate; 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 cylinder; 4-7-4-2, 29.5mm×4.2mm rectangular slot; 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 cylinder; 4-7-9-2, diameter 7.2mm high 4.5mm cylinder; 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 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 x 4.2mm rectangular through hole; 4-7-6-3, diameter 20mm through hole. DETAILED DESCRIPTION

[0041] In order to make the above-mentioned purpose, features and advantages of the utility model more apparent, obvious, the specific implementation of the utility model is explained in detail below with the help of the drawings.

[0042] In the following description, a lot of specific details are set forth in order to fully understand the utility model, but the utility model can also be implemented in other ways different from the description, and people in the field can make similar generalization without violating the connotation of the utility model, so the utility model is not limited by the specific implementation disclosed below.

[0043] Secondly, the utility model is described in detail in combination with the schematic diagram, and when the utility model implementation is described in detail, the cross-sectional view of the device structure will be partially enlarged without the general proportion for the convenience of illustration, and the schematic diagram is only an example, which should not limit the scope of protection of the utility model here. In addition, the three-dimensional spatial dimensions of length, width and depth should be included in actual production.

[0044] In order to make the purpose, technical scheme and advantage of the utility model more clear, the implementation of the utility model will be described in further detail below with the help of the drawings.

[0045] The utility model provides a kind of ultrasonic wave partial discharge detector carried on unmanned aerial vehicle platform, by optimizing unmanned aerial vehicle structure design, by unmanned aerial vehicle collation intelligent inspection equipment, staff can control unmanned aerial vehicle along the equipment to be inspected or line flight, just can timely find the security hidden danger or fault point such as broken point, partial discharge point, heating point along the way, can complete the inspection work while improving detection accuracy, to improve the reliability of transmission line normal operation.

[0046] Figures 1-14 It is the overall structure schematic diagram of one embodiment of the ultrasonic wave partial discharge detector carried on unmanned aerial vehicle platform of the utility model, please refer to Figures 1-14 The main structure of the embodiment includes: ultrasonic wave partial discharge detector main body (4), silencing structure (3), skyport pivot (5), M2.5×6 screw (6), M2.5×6 screw (7), M6×10 screw (8) and M6×10 hand screw (9);

[0047] The skyport pivot (5) is locked in the rear end of ultrasonic wave partial discharge detector main body (4) by M6×10 screw (8) and M6×10 hand screw (9), and is locked by M2.5×6 screw (7) through the slot on both sides of the rear end of ultrasonic wave partial discharge detector main body (4);

[0048] When using the device, the staff takes out the drone 1 from the packaging box, places it on the ground and unfolds its wings. Then, they take out the partial discharge detector body 4 from the packaging box, insert the Skyport V2 rotating ring 5-1 into the plug-in interface of the mounting bracket 2 and tighten 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 that is mounted and connected to the drone uses the 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 the computer system with a more powerful configuration. The acoustic imaging module has been increased from the original single channel to a 128-channel one. It also has a visible light imaging module and a power module. For the specific principle block diagram, please refer to Figure 14 The core of the device's control is a computer system. The acoustic imaging module transcodes, filters, and processes the acoustic signals collected by the 128-channel microphone array, then transmits the data to the computer system via Ethernet communication. The computer system analyzes the signal to determine the relative sound pressure of each grid cell on the screen. Combined with the visible light module to capture the image, a holographic color map is generated to locate the noise source. The computer system connects to the Skyport V2's rotating ring via the PSDK interface to communicate with the UAV 1 platform. Using the UAV 1 remote control, real-time inspection results can be observed and the device can be remotely controlled. The UAV 1 power module provides power to the computer and peripheral modules. This structurally effective noise reduction design allows the 128-channel microphone array to capture ultrasonic signals, which are filtered by software to generate acoustic images. These images are then combined with visible light imaging and transmitted to the UAV platform. This drone remote control technology enables target detection and analysis management during manual inspections, effectively reducing the workload and difficulty for inspectors.

[0049] 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;

[0050] 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. 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;

[0051] During actual use, the silencer barrel 3-1 is adhered with sound-absorbing material inside, nested on the device body through the limit pin 3-2, and fixed with 7 M2.5×6 screws.

[0052] Furthermore, the ultrasonic partial discharge detector body 4 specifically includes: a rear shell 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;

[0053] 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.

[0054] Furthermore, the heat dissipation platform of the rear housing 4-1 is affixed with thermal conductive silicone, pressed onto the computer control board 4-6, and 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.

[0055] Furthermore, the skyport shaft 5 specifically includes: a skyport V2 rotating ring 5-1, a rotating 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;

[0056] During 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 is passed through the threading hole 5-7 of the rotating shaft 5-2. The Skyport V2 rotating ring 5-1 is locked to the rotating shaft 5-2 with four M2.5×12mm screws; the threading holes 5-7 with a diameter of 11mm are used for smooth routing of the Skyport V2 electronic cable. 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 for connecting and fixing with the ultrasonic partial discharge detector body 4. The M2.5 threaded through holes 5-3 on both sides of the rotating shaft 5-2 can be tightened with 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.

[0057] Furthermore, the rear housing 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-shaped groove 4-1-9, an M6 threaded through hole 4-1-10, a 5mm wide 45-degree 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;

[0058] 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 thermal conductive silicone and connected to the heating element housing on the computer control board 4-6;

[0059] In actual use, each corner of the rear housing 4-1 features a 10.5mm diameter column 4-1-1. Through its upper 3.2mm diameter through-hole 4-1-5, M3×12 screws 4-4 secure the rear housing 4-1 to the front housing 4-7-9 of the microphone array unit 4-7. A 2mm thick, 20mm deep groove 4-1-12 is located on the back of the rear housing 4-1, increasing the device's heat dissipation area and ensuring optimal heat dissipation. A protruding hinge frame extends from the back of the rear housing 4-1. The hinge frame features an arc-shaped groove 4-1-9 with a 21mm radius, which mates with a 20.5mm radius arc on the underside of the hinge, ensuring smooth rotation of the device's main body during angle adjustment. M6 threaded holes 4-1-10 on either side of the hinge frame mate with 6.2mm diameter grooves on either side of the hinge. M6 screws and thumb screws are used to secure and rotate the hinge to the main body. There are 5mm wide and 45-degree straight slots 4-1-11 on both sides of the hinge fixing frame. Combined with the M2.5 screws fixed on both sides of the hinge, the rotation angle of the main body can be limited.

[0060] Furthermore, 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 board 4-7-7, an array front sealing gasket 4-7-8, and a front housing 4-7-9;

[0061] In specific use, the array front gasket 4-7-8, the microphone array board 4-7-7 and the array rear gasket 4-7-6 are sequentially arranged in the front shell 4-7-9 in the order, the hole positions of the microphones are matched, the four M2 hexagonal copper columns are locked on the back of the array pressing sheet 4-7-4 through the M2*5 screws 4-7-5, the visible light camera 4-7-1 passes through the square hole in the center of the array pressing sheet 4-7-4, the four corner mounting holes pass through the other end of the hexagonal copper column, and the M2 nut 4-7-2 is used for fixing, the pressing sheet is pressed on the array rear gasket 4-7-6, the hole positions are matched, the array pressing sheet 4-7-4 is pressed and fixed on the mounting column of the front shell 4-7-9 through the M3*6 screw 4-7-3, and a complete microphone array unit 4-7 is formed, the microphone array board 4-7-6 and the shell are connected through the front and rear gaskets, sound insulation is realized, and interference caused by self vibration during flight is effectively avoided.

[0062] Further, the array pressing sheet 4-7-4 is respectively provided with a 6mm-diameter and 13mm-high column 4-7-4-1, a 29.5mm*4.2mm rectangular groove 4-7-4-2, an M2.5*10 threaded hole 4-7-4-3, a 3.2mm-diameter through hole 4-7-4-4, a 16.7mm*16.7mm rectangular hole 4-7-4-5 and a 2.7mm-diameter through hole 4-7-4-6.

[0063] In specific use, the array pressing sheet 4-7-4 is made of an aluminum alloy bar by milling, the 16.7mm*16.7mm rectangular hole 4-7-4-5 is used for fixing the visible light camera 4-7-1, the 2.7mm-diameter through hole 4-7-4-6 is matched with the M2 screw and the hexagonal copper column to fix the visible light camera circuit board, the two 29.5mm*4.2mm rectangular grooves 4-7-4-2 are limiting holes of two communication terminals of the 128-way microphone array board 4-7-6, and the four 3.2mm-diameter through holes 4-7-4-4 are matched with the M3 screw to fasten the array pressing sheet 4-7-4 on the front shell 4-7-9. The 6mm-diameter and 13mm-high column 4-7-4-1 and the M2.5*10 threaded hole 4-7-4-3 on the upper part of the column can support and fix the computer control board.

[0064] Further, the front shell 4-7-9 is provided with a 10mm-diameter and 14mm-high column 4-7-9-1, a 7.2mm-diameter and 4.5mm-high column 4-7-9-2, a 15.5mm-diameter through hole 4-7-9-3, a 2mm-deep and 6mm-diameter circular hole 4-7-9-4, a 2.4mm-deep and 14mm-diameter circular hole 4-7-9-5, an M2 threaded through hole 4-7-9-6 and a 3.5mm-diameter through hole 4-7-9-7.

[0065] 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.

[0066] The array rear sealing gasket 4-7-6 is provided with a 7.5mm diameter through hole 4-7-6-1, a 29.5mm×4.2mm rectangular through hole 4-7-6-2, and a 20mm diameter through hole 4-7-6-3;

[0067] In actual use, the main body of the front shell 4-7-9 is made of original color ABS material 3D printed and then painted. There are 128 through holes 4-7-9-7 with a diameter of 3.5mm inside, which correspond to the pickup holes of each microphone on the microphone array board 4-7-7 and 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 circular holes with a diameter of 2mm and a depth of 6mm on their upper parts 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 with a depth of 2.4mm and a depth of 14mm, which is used to be fastened together with the rear shell 4-1 with M3 self-tapping screws;

[0068] The array front seal 4-7-8 is stamped from 2mm thick PORON foam. The middle 16mm diameter through hole 4-7-8-3 is the lens hole for 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 waveguide function. The 7.5mm diameter through hole 4-7-8-1 is the limit hole for the mounting column of the front shell 4-7-9. The array front seal 4-7-8 plays a sealing and shock-absorbing role 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;

[0069] The array front seal 4-7-8 is stamped from 1mm thick PORON foam. The central 20mm diameter through-hole 4-7-6-3 serves as the lens aperture for the visible light camera 4-7-1. The 7.5mm diameter through-hole 4-7-6-1 serves as a retaining hole for the mounting post on the front housing 4-7-9. Two 29.5mm x 4.2mm rectangular slots 4-7-6-2 serve as retaining holes for the communication port on the microphone array board 4-7-7. The rear seal of the array acts as a seal and shock absorber for the entire microphone array unit 4-7, further reducing interference from external noise and vibration on the effective signal and improving the accuracy of ultrasonic detection.

[0070] Although the utility model has been described above with reference to the embodiments, various modifications can be made thereto, and equivalent replacements can be made to the components thereof, without departing from the scope of the utility model. In particular, as long as there is no structural conflict, each feature in the embodiments disclosed by the utility model can be combined with each other in any manner, and the combinations are not exhaustively described in the specification merely for the purpose of omitting the length and saving the resources. Therefore, the utility model 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), muffler 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 hand screw (9), and is locked by means of an M2.5×6 screw (7) penetrating the 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). 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 includes: 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 thermal conductive silicone and pressed onto the computer control board (4-6). It is then 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).

5. The ultrasonic partial discharge detector mounted on an unmanned aerial vehicle platform according to claim 4, characterized in that: The skyport rotating shaft (5) specifically comprises: a skyport V2 rotating ring (5-1), a rotating 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 shell (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 wide 45-degree 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), 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 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 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 housing (4-7-9); Among them, the array front sealing gasket (4-7-8), microphone array board (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 to the back of the array pressing plate (4-7-4) through 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 to the mounting column of the front shell (4-7-9) with 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 29.5 mm×4.2 mm rectangular groove (4-7-4-2), 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 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 29.5 mm×4.2 mm rectangular through hole (4-7-6-2), 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 silencer structure (3) are mounted on the mounting frame (2) on the bottom surface of the unmanned aerial vehicle (1).

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