High-pressure coaxial power system of unmanned aerial vehicle

Abstract

The unmanned aerial vehicle high-pressure coaxial power system comprises a tubular shaft and a high-pressure connector, the outer wall of one end of the tubular shaft is sleeved with a clamping base, a mounting base is arranged at the top of the clamping base, and a motor is mounted at the top of the mounting base; a speed regulator is fixed on the outer wall of the tubular shaft; a circuit board is arranged in the speed regulator; the high-voltage connector is fixed on the clamping seat; the high-voltage connector is used for connecting the motor and a circuit board of the speed regulator A lining pipe is arranged in the pipe shaft, clamping blocks are fixed to the two sides of the end of the lining pipe, a limiting groove is formed in the outer wall of one side of the clamping base, and two sets of grooves are formed in one end of the pipe shaft. According to the invention, the length of the data line between the motor and the speed regulator is reduced, so that the problem of signal interference of the data line is better solved, and the lining pipe fixedly mounted in the pipe shaft is limited and fixed by the clamping block to the limiting groove, so that the clamping seat cannot axially rotate on the outer wall of the pipe shaft.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of unmanned aerial vehicles, in particular to a high-pressure coaxial power system of unmanned aerial vehicle. BACKGROUND

[0002] The high-pressure coaxial power system of unmanned aerial vehicle is one of the key types of unmanned aerial vehicle power systems, which relies on high-pressure power supply mode and adopts coaxial dual-rotor structural design, can effectively improve the power efficiency, flight control accuracy and energy utilization efficiency of unmanned aerial vehicle, and can provide stable and strong power support for unmanned aerial vehicle in complex task scenarios such as heavy load and long endurance, and is an important power configuration to realize high-performance flight of unmanned aerial vehicle.

[0003] In the existing unmanned aerial vehicle power system, the core components mainly include motor, electronic speed regulator, motor pipe clamp seat and pipe shaft, among which the motor is the core unit of power generation, which provides mechanical energy for the rotation of the unmanned aerial vehicle rotor, the electronic speed regulator is used to adjust the motor speed to control the flight state of the unmanned aerial vehicle, the motor pipe clamp seat bears the installation and fixing function of the motor, and connects the motor with the pipe shaft which plays a structural supporting role, and the pipe shaft provides a light weight and high strength support carrier for the power system and part of the structure of the unmanned aerial vehicle, and the cooperation of each component ensures the normal operation of the power system.

[0004] However, the existing unmanned aerial vehicle power system has obvious deficiencies: on the one hand, the data line connected between the electronic speed regulator and the motor is too long, and the data line connected between the electronic speed regulator and the motor of some unmanned aerial vehicles can reach about 30 cm, which is easy to cause signal interference, resulting in unstable performance of the aircraft during operation, affecting the flight reliability, on the other hand, the two groups of motor pipe clamp seats are symmetrically sleeved on the pipe shaft and are clamped and fixed by bolts, this installation method is difficult to effectively limit the axial freedom of the motor pipe clamp seat, which is easy to cause the axial rotation of the motor pipe clamp seat on the pipe shaft, reducing the stability of the power system structure. SUMMARY

[0005] Therefore, the purpose of the present application is to provide a high-pressure coaxial power system of unmanned aerial vehicle to solve the technical problems mentioned in the background.

[0006] To achieve the above purpose, the present application provides the following technical scheme: A high-pressure coaxial power system of unmanned aerial vehicle, comprising a pipe shaft, two groups of clamp seats are sleeved on the outer wall of one end of the pipe shaft, an installation seat is arranged on the top of the clamp seat, and a motor is installed on the top of the installation seat; The outer wall of the pipe shaft is also fixed with a speed regulator, and the inside of the speed regulator is provided with a circuit board; The high-pressure coaxial power system of unmanned aerial vehicle further comprises a high-pressure connector, the high-pressure connector is fixed on the clamp seat, and the high-pressure connector is used to connect the motor and the circuit board of the speed regulator; The pipe shaft is internally provided with a lining pipe, the end portions of the lining pipe are fixed with clamping blocks, the outer wall of one side of the clamping seat is provided with a limiting groove, and one end of the pipe shaft is provided with two groups of grooves.

[0007] By adopting the above technical scheme, the problems of the too long data line between the electronic speed regulator and the motor of the existing unmanned aerial vehicle and the axial rotation of the motor pipe clamping seat on the pipe shaft are solved, the speed regulator and the clamping seat are fixed together through bolts, and the circuit board in the speed regulator and the motor at the top of the clamping seat are connected through a high-voltage connector, the length of the data line between the motor and the speed regulator is reduced, so that the problem of signal interference of the data line is better solved, and the lining pipe fixedly installed in the pipe shaft is limited and fixed through the clamping blocks and the limiting grooves, so that the clamping seat cannot axially rotate on the outer wall of the pipe shaft.

[0008] The clamping blocks are in the shape of L, and the widths of the limiting grooves and the grooves are equal to the width of the clamping blocks.

[0009] Preferably, when the lining pipe is fixedly installed in the pipe shaft, the top part of the clamping block is embedded in the limiting groove on the outer wall of one side of the clamping seat, and the bottom part of the clamping block is inserted into the groove at the end of the pipe shaft, so that the clamping seat is limited and fixed.

[0010] The pipe shaft is externally provided with a plurality of first fixing holes, the lining pipe is externally provided with a plurality of second fixing holes, and the second fixing holes correspond to the first fixing holes in position.

[0011] Preferably, when the clamping blocks at the end of the lining pipe are embedded in the limiting grooves and the grooves at the same time, the staff can use bolts and nuts to fixedly install the lining pipe in the pipe shaft.

[0012] The pipe shaft is externally provided with a plurality of first fixing holes, the lining pipe is externally provided with a plurality of second fixing holes, and the second fixing holes correspond to the first fixing holes in position.

[0013] Preferably, the wire in the unmanned aerial vehicle is connected to the circuit board in the speed regulator through the wire hole.

[0014] The pipe shaft is externally provided with a plurality of first fixing holes, the lining pipe is externally provided with a plurality of second fixing holes, and the second fixing holes correspond to the first fixing holes in position.

[0015] Preferably, the wire in the unmanned aerial vehicle is connected to the circuit board in the speed regulator through the wire hole.

[0016] The application is further provided that the inner wall of the wire protection sleeve is elliptical, and the wire protection sleeve is made of silica gel material.

[0017] The application is further provided that the speed regulator is fixed on one side with a fixed block, and the fixed block fixed on the end of the speed regulator is fixed and connected by bolts.

[0018] The application is further provided that the top of the clamping seat is provided with an upper cover, which is fixed on the top of the clamping seat by bolts. As a preferred, when the speed regulator is fixed and installed in the clamping seat by bolts on one end, the personnel can fix the fixed block fixed and installed on the other end of the speed regulator on the pipe shaft, so that the speed regulator is more stable.

[0019] The application is further provided that the pipe shaft is a carbon pipe or a titanium alloy pipe.

[0020] The application is further provided that the high-voltage connector includes a plug male head, a three-phase male pin, a three-phase wire and a signal wire, the plug male head is provided with a plug female head and a male head rear cover at both ends, the three-phase wire is provided with a three-phase female head at one end, the male head rear cover is provided with a plastic elastic sheet matched with the three-phase female head, the plug male head is provided with a jack, and the three-phase male pin and the plug female head are slidingly matched; The three-phase female head is provided with a top rod elastically penetrating, one end of the top rod is connected with a clamping plate in the three-phase female head, a second clamping groove is formed on the outer wall of the three-phase female head at the position of the top rod, a tapered ring is arranged on one side of the second clamping groove, one end of the signal wire penetrates into the plug female head, and a pin is connected in the plug female head.

[0021] Through the above technical scheme, the plastic elastic sheet is clamped on the outer wall of the three-phase female head, the plug male head is threadedly connected with the plug female head through the bolt assembly, so that the three-phase wire is not exposed and hung outside after plugging, the three-phase male pin is inserted into the plug female head and inserted into the three-phase female head, the electrical connection between the three-phase male pin and the three-phase wire is realized, the three-phase wire is separately arranged, the three-phase wire and the three-phase male pin are prevented from being worn by other structural members after plugging, and the plastic elastic sheet extrudes the top rod, drives the clamping plate on the inner wall to limit the outer wall of the three-phase male pin inserted into the three-phase female head, and limits the three-phase male pin at the same time, so as to ensure the stability of the connection between the three-phase male pin and the three-phase wire.

[0022] The application is further provided that the plug female head is provided with a flat hole penetrating, and the outer wall of the three-phase male pin is provided with a horizontal surface matched with the flat hole.

[0023] As preferred, the setting of the flat hole ensures that the staff can ensure the consistency of the three-phase male pin when inserting the three-phase female head, prevents the inclination of the three-phase male pin connection, and avoids the need to adjust the angle of the three-phase male pin after subsequent installation.

[0024] The application further provides that the inner wall of the three-phase female head is provided with an inner groove, wherein the depth of the inner groove is greater than the thickness of the clamping plate.

[0025] As preferred, the setting of the inner groove facilitates the clamping plate to be clamped into the inner groove by the ejector rod, and the depth of the inner groove can ensure that the clamping plate is completely in the inner groove, so that the clamping plate does not hinder the subsequent sliding connection of the three-phase male pin, and further improves the stability of the overall installation.

[0026] The application further provides that one end of the plastic elastic sheet is provided in a concave manner, and a tapered surface is arranged on the inner wall of the plastic elastic sheet, wherein the connection between the one end of the plastic elastic sheet and the tapered ring is provided in a smooth manner, and the outer diameter of one end of the tapered surface is the same as the inner diameter of the plastic elastic sheet.

[0027] As preferred, the concave setting facilitates the extrusion of the ejector rod during the subsequent elastic reset process, and the setting of the tapered surface enables the plastic elastic sheet to slide away from the outer wall of the tapered ring during the sliding process of the three-phase female head, so that the plastic elastic sheet can still limit and fix the tapered ring, and after the plastic elastic sheet extrudes the ejector rod, the outer wall of the tapered ring will be in full contact with the inner wall of the plastic elastic sheet, further sealing the slot at the ejector rod, effectively preventing the sliding of the ejector rod during subsequent gluing.

[0028] The application further provides that the first threaded hole is arranged on the plug head and the plug head rear cover, and the second threaded hole is arranged on the outer wall of the plug head and the female head, wherein the first threaded hole and the second threaded hole are matched by the bolt assembly.

[0029] As preferred, the first threaded hole and the bolt assembly can limit and fix the plug head rear cover and the plug head, and then the second threaded hole and the bolt assembly can limit and fix the plug head and the female head, thereby completing the overall fixing and installation work.

[0030] The application further provides that one end of the insertion hole is provided in an open manner, and a smooth surface is arranged on the inner wall of the insertion hole.

[0031] As preferred, the opening-shaped arrangement facilitates guiding the three-phase female head, and the smooth surface effectively reduces the sliding friction between the three-phase female head and the socket, ensuring that the male head cover can be stably inserted into the inside of the plug-in male head.

[0032] The present application further provides that the inner wall of the clamping plate is provided with a flexible protective sleeve, wherein the flexible protective sleeve is detachably arranged on the inner wall of the clamping plate.

[0033] As preferred, the flexible protective sleeve prevents the clamping plate from directly contacting the outer wall of the three-phase male pin, effectively preventing wear of the outer wall of the three-phase male pin during clamping, and the flexible protective sleeve is made of insulating material, preventing electric leakage, and the detachable arrangement facilitates regular maintenance and replacement by the staff.

[0034] The present application further provides that the outer wall of the plug-in male head is provided with a sealing rubber ring, and the inner wall of the plug-in female head is provided with a rubber groove for accommodating the sealing rubber ring.

[0035] As preferred, the sealing rubber ring ensures the sealing between the plug-in male head and the plug-in female head, effectively reducing the entry of moisture in the air into the inside of the plug-in male head during flight of the unmanned aerial vehicle, and the rubber groove of the plug-in female head makes the contact with the sealing rubber ring more closely, further improving the sealing effect of the plug-in male head and the plug-in female head.

[0036] The present application further provides that the clamping layer of the three-phase female head is provided with an elastic component, wherein one end of the elastic component is fixedly connected to the three-phase female head, and the other end is connected to the outer wall of the top rod.

[0037] As preferred, in the normal state, the top rod penetrates the outer wall of the three-phase female head, and under the action of the plastic spring, the top rod is pressed to move downward, at which time the elastic component is compressed, and then when the plastic spring is removed, the top rod is reset to slide by the resetting action of the elastic component.

[0038] The present application further provides that the outer wall of the top rod and one end of the plastic spring are arranged in an arc shape, and a smooth surface is arranged on the arc-shaped end face.

[0039] As preferred, the arc-shaped arrangement facilitates the plastic spring to move to the top of the top rod when the plastic spring slides to the top rod through the outer wall of the conical ring, so as to complete the pressing work, and the smooth surface of the arc-shaped end face effectively reduces the sliding friction between the two, ensuring the stability of the sliding of the plastic spring on the top rod.

[0040] The application is characterized in that the three-phase female head is connected with the three-phase line, and then is inserted into the plug-in male head socket, and is clamped on the outer wall of the three-phase female head under the action of the plastic elastic sheet, the plug-in male head is screwed with the plug-in female head through the bolt assembly, so that the three-phase line is not exposed and hung outside after the three-phase line is plugged in, then the three-phase male pin is inserted into the plug-in female head and inserted into the three-phase female head, the electrical connection between the three-phase male pin and the three-phase line is realized, and the three-phase line is separated and placed separately, so that the three-phase line is prevented from being worn and abraded by swinging with other structural members after being plugged in, and the indirect contact between the three-phase line connection part and other structural members is reduced, thereby effectively reducing the overall failure rate of the unmanned aerial vehicle. The application is characterized in that the one end of the three-phase female head is inserted into the plastic elastic sheet and is pushed inward by a certain distance, so that the plastic elastic sheet is in contact with the outer wall of the conical ring, at this time, the three-phase male pin is inserted into the three-phase female head through the plug-in female head and the plug-in male head, then the male head rear cover is inserted into the plug-in male head, and the plastic elastic sheet is reset to the second clamping groove through the extrusion of the inner wall of the plug-in male head, at this time, the second clamping groove limits the three-phase female head, which prevents the three-phase line from sliding out backward, and the plastic elastic sheet extrudes the top rod, drives the clamping plate of the inner wall to limit the outer wall of the three-phase male pin inserted into the three-phase female head, and limits the three-phase male pin at the same time, thereby ensuring the stability of the connection between the three-phase male pin and the three-phase line, and preventing the three-phase male pin and the three-phase line from slipping during the flight of the unmanned aerial vehicle.

[0041] In summary, the application has the following beneficial effects: 1、The application is characterized in that the pipe shaft, the clamping seat, the inner lining pipe, the clamping block, the groove and the limiting groove are arranged, the problem that the existing unmanned aerial vehicle motor pipe clamping seat is easily axially rotated when being fixed and clamped on the pipe shaft by bolts is solved, when two groups of clamping seats are movably sleeved on the outer wall of the pipe shaft end, the inner lining pipe is inserted into the pipe shaft, and the clamping blocks on both sides of the inner lining pipe end are embedded into the groove of the pipe shaft end and the limiting groove on one side of the outer wall of the clamping seat, and then the inner lining pipe is fixedly arranged in the pipe shaft by bolts and nuts through the first fixing hole and the second fixing hole, the clamping seat is limited and fixed by the clamping block, so that the clamping seat cannot be axially rotated on the outer wall of the pipe shaft.

[0042] 2、The application is characterized in that the clamping seat, the motor, the mounting seat, the high-voltage connector and the speed regulator are arranged, the problem that the data line between the existing electronic speed regulator and the motor of the unmanned aerial vehicle is too long is solved, the top and one side of the clamping seat are respectively connected with the mounting seat and the speed regulator, the mounting seat is electrically connected with the motor fixed on the top by the connector, the high-voltage connector is connected with the circuit board in the speed regulator, so that the speed regulator and the motor are electrically connected, the length of the three-phase line of the high-voltage connector is reduced, the interference is reduced, the stability is improved, the cost of production materials is reduced, and the product is more simple and beautiful.

[0043] 3、The application realizes that the distance between the speed regulator and the motor is closer, the length of the three-phase line of the high-voltage connector is shorter, the problem of signal interference is solved obviously, and the product is convenient to install and has small space occupation.

[0044] 4、The speed regulator is directly installed on the motor pipe clamp seat, which better makes the motor and the electronic speed regulator ground stable, reduces the pipe plus materials of the electronic speed regulator, and achieves the purpose of reducing cost.

[0045] 5、In the layout, the motor and the speed regulator are arranged closer to solve the interference problem in work; the upper cover is used to cover the high-voltage connector, so that the appearance is not seen wire, and is more beautiful. The installation position of one end of the speed regulator is directly arranged on the clamp seat, and the connection part is exposed white to strengthen the electrical performance of the whole machine. The power line and signal line of the speed regulator are directly inserted into the pipe shaft after being taken out of the shell, so that the appearance problem of the wire on the whole machine is solved. The clamp seat and the pipe shaft lining cooperate with each other to play a positioning role, so that the whole machine is more convenient to install. BRIEF DESCRIPTION OF DRAWINGS

[0046] Figure 1 It is a whole schematic view of the device of the application; Figure 2 It is an internal schematic view of the speed regulator of the application; Figure 3 It is a connection schematic view of the high-voltage connector of the application; Figure 4 It is a clamp seat schematic view of the application; Figure 5 It is an upper cover installation schematic view of the application; Figure 6 It is an inner lining pipe schematic view of the application; Figure 7 It is an inner lining pipe installation schematic view of the application; Figure 8 It is a clamp seat split schematic view of the application; Figure 9 It is a wire protection sleeve installation schematic view of the application; Figure 10 It is a wire protection sleeve structure view of the application; Figure 11 It is a perspective view of the high-voltage connector of the application; Figure 12 It is an explosion view of the high-voltage connector of the application; Figure 13 It is a three-phase public needle structure schematic view of the high-voltage connector of the application; Figure 14 It is a plug-in male head structure schematic view of the high-voltage connector of the application; Figure 15 It is a three-phase line installation structure schematic view of the high-voltage connector of the application; Figure 16It is a sectional view of the high-voltage connector of the application; Figure 17 It is a sectional view of the high-voltage connector of the application Figure 16 It is an enlarged view of A in the application; Figure 18 It is a schematic view of the rear cover structure of the male head of the high-voltage connector of the application; Figure 19 It is a schematic view of the structure of the three-phase male head and three-phase wire connection state of the high-voltage connector of the application; Figure 20 It is a schematic view of the structure of the three-phase female head of the high-voltage connector of the application; Figure 19 Figure 21 It is a schematic view of the structure of the three-phase female head of the high-voltage connector of the application; Figure 22 It is a schematic view of the structure of the three-phase female head of the high-voltage connector of the application Figure 21

[0047] Explanation of reference signs: 1, tube shaft; 101, groove; 102, first fixing hole; 103, wire hole; 2, clamp seat; 201, mounting seat; 205, upper cover; 206, limiting groove; 3, motor; 4, speed regulator; 401, circuit board; 403, fixing block; 5, inner lining tube; 501, clamping block; 502, second fixing hole; 6, wire sleeve; 601, first clamping groove; 7, wire; 8, high-voltage connector; 71, plug-in male head; 72, plug-in female head; 73, rear cover of male head; 74, three-phase wire; 75, three-phase male pin; 76, jack; 77, first threaded hole; 78, second threaded hole; 79, three-phase female head; 80, plastic elastic sheet; 81, inner groove; 82, top rod; 83, clamping plate; 84, second clamping groove; 85, conical ring; 86, signal wire; 87, pin header; 88, female header. DETAILED DESCRIPTION

[0048] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. The embodiments described below with reference to the drawings are exemplary and are used to explain the application, and cannot be understood as a limitation of the application.

[0049] The embodiments of the application will be described below according to the overall structure of the application.

[0050] Please refer to Figure 1 — Figure 10 The unmanned aerial vehicle high-voltage coaxial power system of the application comprises a tube shaft 1, two groups of clamp seats 2 are arranged on the outer wall of one end of the tube shaft 1, the top of each clamp seat 2 is provided with a mounting seat 201, and a motor 3 is installed on the top of the mounting seat 201. The outer wall of the tube shaft 1 is further fixed with a speed regulator 4, and the inside of the speed regulator 4 is provided with a circuit board 401.

[0051] ​​The high-voltage connector 8 is fixed to the clamp seat 2. The high-voltage connector 8 is used to connect the motor 3 and the circuit board 401 of the speed regulator 4. Specifically, the high-voltage connector 8 is connected to the motor 3 and the circuit board 401, respectively.

[0052] Please refer to Figures 11-22 In this embodiment, the high-voltage connector 8 includes a plug male head 71, three-phase male pins 75, three-phase female heads 79, and a signal line 86. The plug male head 71 is provided with a plug female head 72 and a male head rear cover 73 at two ends, respectively. The three-phase female heads 79 are sleeved with the three-phase male pins 75 and the plug female head 72. The male head rear cover 73 is provided with a plastic spring 80 matched with the three-phase female heads 79. The plug male head 71 is provided with a plug hole 76. The three-phase male pins 75 and the plug female head 72 are slidingly matched. The three-phase female heads 79 are elastically penetrated with a jack 82. One end of the jack 82 is connected with a clamping plate 83 in the three-phase female heads 79. The outer wall of the three-phase female heads 79 is provided with a second clamping groove 84 at the jack 82. A tapered ring 85 is arranged on one side of the second clamping groove 84. One end of the signal line 86 penetrates into the plug female head 72 and is connected with a pin header 87 in the plug female head 72.

[0053] Please refer to Figures 11-22 In this embodiment, the plug female head 72 is provided with a flat hole. The outer wall of the three-phase male pins 75 is provided with a horizontal surface matched with the flat hole. The inner wall of the three-phase female heads 79 is provided with an inner groove 81. The depth of the inner groove 81 is greater than the thickness of the clamping plate 83. One end of the plastic spring 80 is concave. The inner wall of the plastic spring 80 is provided with a tapered surface. The connection between one end of the plastic spring 80 and the tapered ring 85 is smooth. The outer diameter of one end of the tapered surface is the same as the inner diameter of the plastic spring 80. The plug male head 71 and the male head rear cover 73 are provided with first threaded holes 77. The outer walls of the plug male head 71 and the plug female head 72 are provided with second threaded holes 78. The first threaded holes 77 and the second threaded holes 78 are matched by bolt assemblies. One end of the plug hole 76 is open. The inner wall of the plug hole 76 is provided with a smooth surface. The inner wall of the clamping plate 83 is provided with a flexible protective sleeve. The flexible protective sleeve is detachably arranged on the inner wall of the clamping plate 83. The outer wall of the plug male head 71 is provided with a sealing rubber ring. The inner wall of the plug female head 72 is provided with a rubber groove for the sealing rubber ring. The interlayer of the three-phase female heads 79 is provided with an elastic assembly. One end of the elastic assembly is fixedly connected in the three-phase female heads 79. The other end is connected with the outer wall of the jack 82. The outer wall of the jack 82 and one end of the plastic spring 80 are arc-shaped. The arc-shaped end face is provided with a smooth surface.

[0054] Please refer to Figure 1 — Figure 10The inner side of the pipe shaft 1 is provided with the inner lining pipe 5, the end of the inner lining pipe 5 is fixed with the clamping block 501, the outer wall of one side of the clamping seat 2 is provided with the limiting groove 206, one end of the pipe shaft 1 is provided with two groups of grooves 101, the problems that the data line between the electronic speed regulator of the existing unmanned aerial vehicle and the motor is too long and the motor pipe clamping seat is easy to rotate on the pipe shaft are solved, the speed regulator 4 and the clamping seat 2 are fixed together through bolts, and the circuit board in the speed regulator 4 is connected with the motor 3 at the top of the clamping seat 2 through the high-voltage connector 8, the length of the cable between the motor 3 and the speed regulator 4 is reduced, so that the problem of signal interference of the cable is better solved, and the inner lining pipe 5 fixedly installed in the pipe shaft 1 is limited and fixed through the clamping block 501 to the limiting groove 206, so that the clamping seat 2 cannot rotate on the outer wall of the pipe shaft 1.

[0055] In the above embodiment, please refer to Figure 7 , the clamping block 501 is in L shape, the width of the limiting groove 206 and the groove 101 is equal to the width of the clamping block 501, when the inner lining pipe 5 is fixedly installed in the pipe shaft 1, the top part of the clamping block 501 is embedded in the limiting groove 206 of the outer wall of one side of the clamping seat 2, at the same time, the bottom part of the clamping block 501 is inserted into the groove 101 at the end of the pipe shaft 1, so as to limit and fix the clamping seat 2.

[0056] In the above embodiment, please refer to Figure 6 , a plurality of first fixing holes 102 are formed in the outer wall of the pipe shaft 1, a plurality of second fixing holes 502 are formed in the outer wall of the inner lining pipe 5, and the second fixing holes 502 correspond to the first fixing holes 102, when the clamping block 501 at the end of the inner lining pipe 5 is embedded in the limiting groove 206 and the groove 101 at the same time, the personnel can use the bolt and the nut to fixedly install the inner lining pipe 5 in the pipe shaft 1.

[0057] In the above embodiment, please refer to Figure 2 and Figure 8 , a group of wire holes 103 are formed in the top and bottom of the outer wall of the pipe shaft 1, the inner side of the pipe shaft 1 is provided with the wire 7, and the wire 7 in the unmanned aerial vehicle is connected to the circuit board 401 in the speed regulator 4 through the wire hole 103.

[0058] In the above embodiment, please refer to Figure 8 , Figure 9 and Figure 10 , the wire hole 103 is provided with the wire sleeve 6, the outer wall of the wire sleeve 6 is provided with the first clamping groove 601, the wire sleeve 6 is buckled on the wire hole 103 through the first clamping groove 601, and the wire sleeve 6 protects the wire 7 passing through the wire hole 103, so as to prevent the wire 7 from being scratched and leaking.

[0059] In the above embodiment, please refer to Figure 10The inner wall of the wire protection sleeve 6 is elliptical, the wire protection sleeve 6 is made of silica gel, the elliptical design of the inner wall of the wire protection sleeve 6 provides a deformation space for the wire protection sleeve 6 when it is installed on the wire hole 103 of the pipe shaft 1, so that the wire protection sleeve 6 is convenient and stable to install and does not fall off.

[0060] In the above embodiment, please refer to Figure 2 and Figure 3 The length of the three-phase wire 74 is 8 cm, and the three-phase wire 74 is bundled together with adhesive tape. The three-phase wire 74 is bundled together, so that the internal wiring of the clamp seat 2 is more orderly.

[0061] In the above embodiment, please refer to Figure 1 One side of the speed regulator 4 is fixed with a fixed block 403, and the speed regulator 4 is fixedly connected through the fixed block 403 fixedly arranged at the end thereof through a bolt. When one end of the speed regulator 4 is fixedly installed in the clamp seat 2 through the bolt, the other end of the speed regulator 4 can be fixedly installed in the pipe shaft 1 through the fixed block 403 fixedly installed by the personnel using the bolt, so that the speed regulator 4 is more stable.

[0062] In the above embodiment, please refer to Figure 1 and Figure 2 The top of the clamp seat 2 is provided with an upper cover 205, and the upper cover 205 is fixedly installed on the top of the clamp seat 2 through a bolt. The upper cover 205 seals and shields the wire slot exposed on the top of the clamp seat 2, preventing rainwater from falling into the interior of the clamp seat 2.

[0063] In the above embodiment, please refer to Figure 2 and Figure 3 The bottom of the motor 3 is provided with an electrical connector, and the electrical connector is matched with the three-phase wire 74. Before the motor 3 is installed on the top of the clamp seat 2, the electrical connector at the bottom of the motor 3 is aligned with the three-phase wire 74 in position and angle, and then the motor 3 is pressed vertically downward, so that the three-phase wire 74 is inserted into the electrical connector at the bottom of the motor 3, thereby completing the circuit connection between the motor 3 and the three-phase wire 74.

[0064] The utility model discloses in the specific work: the both sides of unmanned aerial vehicle are fixedly installed with pipe shaft 1, the outer wall of the end of pipe shaft 1 is equipped with two groups of clamping seat 2, and one end inside pipe shaft 1 is provided with a group of inner liner pipe 5, when inner liner pipe 5 installs to the inside pipe shaft 1, the clamping block 501 fixedly arranged at both sides of the end of inner liner pipe 5 is inserted into the recess 101 of the end of pipe shaft 1, simultaneously, the clamping block 501 is embedded and clamped into the limiting slot 206 on the outer wall of one end of clamping seat 2, and the first fixed hole 102 and the second fixed hole 502 are set up on pipe shaft 1 and inner liner pipe 5 respectively, personnel can use bolt and nut to fix inner liner pipe 5 with pipe shaft 1 together, then use bolt to fix between the two groups of clamping seat 2 movably sleeved at the end of pipe shaft 1, when inner liner pipe 5 is fixedly arranged in the inside pipe shaft 1, because the clamping block 501 fixedly arranged at both sides of the end of inner liner pipe 5 is embedded in the limiting slot 206 of one end of clamping seat 2, make the two groups of clamping seat 2 of pipe shaft 1 outer wall sleeve cannot axial rotation; Before installing motor 3 to the top of clamping seat 2, first, the electric appliance jack of the bottom of motor 3 is angle alignment with three-phase line 74 position, then press down vertically again, make three-phase line 74 insert into the electric appliance jack of the bottom of motor 3, so that the circuit connection of motor 3 and three-phase line 74 is completed.

[0065] One side of clamping seat 2 is fixedly connected with speed regulator 4 through bolt, and one end of the circuit board 401 in speed regulator 4 is connected with high-voltage connector 8, thereby reducing the data line length between speed regulator 4 and motor 3.

[0066] In one embodiment, please refer to Figures 11-22 The high-voltage connector 8 shown in the figure includes a plug male head 71, a plug female head 72, a male head rear cover 73, a sliding mechanism, a sealing mechanism and a limiting mechanism. A plurality of hole grooves are formed on the male head rear cover 73. The three-phase line 74 is placed in the three-phase female head 79 after being stripped and immersed in tin. The three-phase line 74 and the three-phase female head 79 are clamped by a tool. Then, the three-phase line 74 is inserted into the hole groove formed on the male head rear cover 73, so that the three-phase line 74 is separately arranged. After the three-phase line 74 is plugged, it avoids the swing wear with other structural parts, reduces the indirect contact between the plugging connection part of the three-phase line 74 and other structural parts, effectively reduces the overall failure rate of the unmanned aerial vehicle, and one end of the signal line 86 penetrates into the plug female head 72 and is connected with the pin header 87 in the plug female head 72. The signal line 86 is connected with the female header 88. The pin header 87 and the signal line 86 are plugged. The low-voltage module is integrated. After being fixed, the sealing glue is poured for protection. The inner wall of the male head rear cover 73 is provided with a plastic spring 80 at the hole groove. Because the outer diameter of one end of the three-phase female head 79 is larger than the outer diameter of the other end, the plastic spring 80 is expanded during the inward sliding process. The different outer diameters of the three-phase female head 79 at both ends form a second clamping groove 84 at the middle position. When the plastic elastic sheet 80 is located at the second clamping groove 84, it is reset by the elastic action of the plastic elastic sheet 80 itself, and is waterproof and fixed to prevent dragging. A conical ring 85 is arranged on the outer wall of the three-phase female head 79 on one side of the second clamping groove 84. When the three-phase female head 79 continues to slide to one side, the plastic elastic sheet 80 is located on the outer wall of the conical ring 85. Then, the staff inserts the three-phase male pin 75 through the plug female head 72 and the plug male head 71 into the interior of the three-phase female head 79 to realize the integration of the high-voltage module. The integration of the low-voltage module and the high-voltage module reduces the overall volume and the load of the unmanned aerial vehicle, and ensures the endurance of the unmanned aerial vehicle. The space in the module is used to glue the wire insertion part, which can effectively protect and greatly improve the waterproof and dustproof ability. When the three-phase male pin 75 at one end contacts and inserts the three-phase wire 74 in the three-phase female head 79, the first threaded hole 77 is arranged on the plug male head 71 and the male head rear cover 73, and the second threaded hole 78 is arranged on the outer wall of the plug male head 71 and the plug female head 72. The first threaded hole 77 and the second threaded hole 78 are matched by a bolt assembly, and the assembly gap is protected by pouring glue. The plug male head 71 and the plug female head 72 are fixed by the cooperation of the second threaded hole 78 and the bolt assembly, and the male head rear cover 73 is inserted into the interior of the plug male head 71. Since the plug male head 71 is provided with a plug hole 76 for inserting the three-phase female head 79, when the three-phase female head 79 is completely inserted into one end of the plug hole 76, it continues to slide to one side, which pushes the plastic elastic sheet 80 to reset and move on the outer wall of the conical ring 85. Since the three-phase female head 79 is elastically penetrated by a top rod 82, one end of the top rod 82 is connected with a clamping plate 83 in the three-phase female head 79. During the sliding process of the plastic elastic sheet 80, the top rod 82 is extruded, which drives the clamping plate 83 at the bottom to slide downward. Since one end of the three-phase wire 74 is located on one side of the clamping plate 83 in the initial state, and the three-phase male pin 75 contacts the three-phase wire 74 at this time, one end of the three-phase male pin 75 is located at the bottom of the clamping plate 83, which is driven by the top rod 82 to clamp and fix the three-phase male pin 75. Then, the male head rear cover 73 and the plug male head 71 are fixed by the cooperation of the first threaded hole 77 and the bolt assembly, thereby completing the overall fixing and installation work. The three-phase female head 79 is limited by the second clamping groove 84, which prevents the three-phase wire 74 from sliding out, thereby ensuring the stability of the connection between the three-phase male pin 75 and the three-phase wire 74, preventing the three-phase male pin 75 and the three-phase wire 74 from slipping off during the flight of the unmanned aerial vehicle, and effectively reducing the overall failure rate of the unmanned aerial vehicle.

[0067] In the above embodiment, please refer to Figure 13 and Figure 16 , wherein the female connector 72 is provided with a flat hole, and the outer wall of the three-phase male pin 75 is provided with a horizontal surface matched with the flat hole. The flat hole ensures that the three-phase male pin 75 is consistent in inclination when inserted into the female connector 72, preventing the three-phase male pin 75 from being inclined, and avoiding the need to adjust the angle of the three-phase male pin 75 after installation.

[0068] In the above embodiment, please refer to Figure 17 , the inner wall of the three-phase female connector 79 is provided with an inner groove 81, and the depth of the inner groove 81 is greater than the thickness of the clamping plate 83. The inner groove 81 facilitates the clamping plate 83 to be clamped into the inner groove 81 by the ejector rod 82, and the depth of the inner groove 81 ensures that the clamping plate 83 is completely in the inner groove 81, preventing the clamping plate 83 from hindering the sliding connection of the three-phase male pin 75, and further improving the stability of the overall installation.

[0069] In the above embodiment, please refer to Figure 11 , the inner wall of the clamping plate 83 is provided with a flexible protective sleeve, which is detachably arranged on the inner wall of the clamping plate 83. The flexible protective sleeve prevents the clamping plate 83 from directly contacting the outer wall of the three-phase male pin 75, effectively preventing the outer wall of the three-phase male pin 75 from being worn during the clamping process. The flexible protective sleeve is made of insulating material, which can prevent electric leakage, and the detachable arrangement facilitates regular maintenance and replacement by the staff.

[0070] In another embodiment, please refer to Figure 17 and Figure 20 , the high-voltage connector 8 has a structure similar to the above embodiment. One end of the plastic spring 80 is concave, and the inner wall of the plastic spring 80 is provided with a tapered surface. The connection between one end of the plastic spring 80 and the tapered ring 85 is smooth, and the outer diameter of one end of the tapered surface is the same as the inner diameter of the plastic spring 80. The concave arrangement facilitates the extrusion of the ejector rod 82 during the subsequent elastic reset process, and the tapered surface allows the plastic spring 80 to slide away from the outer wall of the tapered ring 85 during the sliding process of the three-phase female connector 79. This allows the plastic spring 80 to still limit and fix the three-phase male pin 75, and after the plastic spring 80 extrudes the ejector rod 82, the outer wall of the tapered ring 85 will be in full contact with the inner wall of the plastic spring 80, further sealing the slot on the ejector rod 82, effectively preventing the sliding of the ejector rod 82 during the subsequent gluing process.

[0071] In the above embodiments, please refer to the detailed description Figure 10 Wherein the outer wall of the top rod 82 and one end of the plastic elastic sheet 80 are arc-shaped, and a smooth surface is arranged at the arc-shaped end face, the arc-shaped arrangement facilitates the subsequent sliding of the plastic elastic sheet 80 through the outer wall of the conical ring 85 to the top rod 82, so that the plastic elastic sheet 80 can move to the top of the top rod 82 to complete the extrusion work, and the smooth surface of the arc-shaped end face effectively reduces the sliding friction between the two, ensuring the stability of the sliding of the plastic elastic sheet 80 at the top rod 82.

[0072] In the specific work of the present application: in use, the three-phase line 74 immersed in tin is fixedly connected with the three-phase female head 79, and then each group of three-phase line 74 is inserted into the plastic elastic sheet 80 of the male head rear cover 73, at this time one end of the plastic elastic sheet 80 is extruded at the conical ring 85, the three-phase male pin 75 is penetrated through the plug-in female head 72 and the plug-in male head 71, and is inserted into the three-phase female head 79, so that the three-phase line 74 is separated and arranged, the three-phase line 74 after insertion avoids the swing wear with other structural parts, reduces the indirect contact of the three-phase line 74 insertion connection part with other structural parts, effectively reduces the failure rate of the whole unmanned aerial vehicle, and the plug-in male head 71, the plug-in female head 72 and the male head rear cover 73 are limited and fixed by the bolt assembly, so that the three-phase line 74 after insertion does not exist exposed and suspended outside; At the same time, when the male head rear cover 73 is inserted into the insertion hole 76 of the plug-in male head 71, one end of the insertion hole 76 will push the three-phase female head 79 to slide to one side, at this time the plastic elastic sheet 80 will be clamped in the second clamping groove 84 of the three-phase female head 79, the second clamping groove 84 limits the three-phase female head 79, which can prevent the three-phase line 74 from sliding back out, and the plastic elastic sheet 80 will extrude the top rod 82 on the three-phase female head 79, in this process, the top rod 82 drives the clamping plate 83 at the bottom end to clamp the three-phase male pin 75, thereby ensuring the stability of the connection between the three-phase male pin 75 and the three-phase line 74, preventing the three-phase male pin 75 and the three-phase line 74 from slipping during the flight of the unmanned aerial vehicle.

[0073] The high-voltage connector 8 of the present application realizes the insertion hole type connection of the phase line and the row pin type connection of the signal line, thereby realizing the integration of the high-voltage module and the low-voltage module, making the product smaller in size, free of wear risk and higher in safety.

[0074] It should be further pointed out that in actual application, the three-phase line 74 of the motor 3 and the high-voltage connector 8 can be fixedly connected to form an integral structure.

[0075] Although the embodiments of the present application have been shown and described, the specific embodiments are merely exemplary and are not to be construed as limiting the present application, and the described specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner, and those skilled in the art can make modifications, replacements and variations to the embodiments without creative contribution after reading the specification, and as long as they are within the scope of the claims of the present application, they are protected by the patent law.

Claims

1. A high-voltage coaxial power system for unmanned aerial vehicles (UAVs), comprising a tube shaft (1), characterized in that: Two sets of clamps (2) are sleeved on the outer wall of one end of the tube shaft (1). A mounting seat (201) is provided on the top of the clamp (2). A motor (3) is installed on the top of the mounting seat (201). A speed regulator (4) is also fixed to the outer wall of the tube shaft (1); a circuit board (401) is installed inside the speed regulator (4); The high-voltage coaxial power system of the UAV also includes a high-voltage connector (8); the high-voltage connector (8) is fixed on the clamp (2); the high-voltage connector (8) is used to connect the circuit board (401) of the motor (3) and the speed controller (4); The tube shaft (1) is provided with an inner liner tube (5), and the two ends of the inner liner tube (5) are fixed with a locking block (501). The outer wall of one side of the clamp (2) is provided with a limiting groove (206), and one end of the tube shaft (1) is provided with two sets of grooves (101).

2. The high-voltage coaxial power system for unmanned aerial vehicles according to claim 1, characterized in that: The card block (501) is L-shaped, and the width of the limiting groove (206) and the groove (101) is equal to the width of the card block (501).

3. The high-voltage coaxial power system for unmanned aerial vehicles according to claim 1, characterized in that: The outer wall of the tube shaft (1) has multiple sets of first fixing holes (102), and the outer wall of the inner lining tube (5) has multiple sets of second fixing holes (502), and the second fixing holes (502) correspond to the positions of the first fixing holes (102).

4. The high-voltage coaxial power system for unmanned aerial vehicles according to claim 1, characterized in that: A set of wire holes (103) are provided at the top and bottom of the outer wall of the tube shaft (1), and wires (7) are provided inside the tube shaft (1).

5. The high-voltage coaxial power system for unmanned aerial vehicles according to claim 4, characterized in that: A wire protector sleeve (6) is installed inside the wire hole (103), and a first slot (601) is provided on the outer wall of the wire protector sleeve (6).

6. The high-voltage coaxial power system for unmanned aerial vehicles according to claim 5, characterized in that: The inner wall of the cable sheath (6) is elliptical, and the cable sheath (6) is made of silicone.

7. The high-voltage coaxial power system for unmanned aerial vehicles according to claim 1, characterized in that: A fixing block (403) is fixed on one side of the speed regulator (4), and the speed regulator (4) is fixedly connected to the fixing block (403) at its end by bolts.

8. The high-voltage coaxial power system for unmanned aerial vehicles according to claim 1, characterized in that: The top of the clamp (2) is fitted with a cover (205), which is fixedly installed on the top of the clamp (2) by bolts.

9. The high-voltage coaxial power system for unmanned aerial vehicles according to claim 1, characterized in that: The tube shaft (1) is a carbon tube or a titanium alloy tube.

10. The high-voltage coaxial power system for unmanned aerial vehicles according to claim 1, characterized in that: The high-voltage connector (8) includes a male connector (71), three-phase male pins (75), three-phase wires (74), and a signal wire (86). The two ends of the male connector (71) are respectively provided with a female connector (72) and a male connector back cover (73). One end of the three-phase wire (74) is fitted with a three-phase female connector (79). The male connector back cover (73) is provided with a plastic spring (80) that mates with the three-phase female connector (79). The male connector (71) is provided with a socket (76), and its three-phase male pins (75) slide with the female connector (72). A push rod (82) is elastically inserted through the three-phase female connector (79), one end of which is connected to a clamp (83) inside the three-phase female connector (79). A second slot (84) is provided on the outer wall of the three-phase female connector (79) at the push rod (82), and a conical ring (85) is provided on one side of the second slot (84). One end of the signal line (86) passes through to the female connector (72) and is connected to a pin header (87) inside the female connector (72).

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