Unmanned aerial vehicle high-voltage connector

Abstract

The invention discloses an unmanned aerial vehicle high-voltage connector, and relates to the field of unmanned aerial vehicles, the unmanned aerial vehicle high-voltage connector comprises a plugging male head, a three-phase male pin, a three-phase line and a signal line, the two ends of the plugging male head are respectively provided with a plugging female head and a male head rear cover, one end of the three-phase line is sleeved with the three-phase female head, the male head rear cover is provided with a plastic elastic sheet, and the plastic elastic sheet is provided with a plurality of through holes. A jack is arranged in the plugging male head, an ejector rod is elastically arranged on the three-phase female head in a penetrating mode, one end of the ejector rod is located in the three-phase female head and connected with a clamping plate, a clamping groove is formed in the outer wall of the three-phase female head, and a conical ring is arranged on one side of the clamping groove. According to the high-voltage connector, the jack type connection of the phase lines and the pin header type connection of the signal lines are realized, so that the integration of the high-voltage module and the low-voltage module is realized, and the high-voltage connector is smaller in size, free of abrasion risk and higher in safety.

Description

Technical Field

[0001] This invention relates to the field of unmanned aerial vehicles (UAVs), specifically to a high-voltage connector for UAVs. Background Technology

[0002] In everyday life, connectors are also called plugs or sockets. They generally refer to electrical connectors, which are devices that connect two active devices to transmit current or signals. The male and female terminals can transmit information or current after contact. Among them, drone connectors are core components that ensure the reliable operation of drone systems. Their performance directly affects flight safety, mission efficiency, and equipment lifespan.

[0003] Currently, the only drone connectors on the market are high-voltage module connectors, and in most cases, they adopt an independent interface design. This independent interface requires each phase wire and ground wire to be configured with a separate contact and male connector, which results in a larger overall connector size, increases the drone's load and affects its endurance. Furthermore, the three-phase wires on the back of the connector are scattered, and during the drone's flight, the frequent movement of the three-phase wires may cause them to rub against each other and pull, increasing the overall failure rate of the drone.

[0004] In summary, the above structure will increase the size of the connector due to the placement of the three-phase wires during actual use, and the scattered distribution of the three-phase wires may cause them to rub against each other and pull, increasing the overall failure rate of the drone. Summary of the Invention

[0005] Based on this, the purpose of this invention is to provide a high-voltage connector for drones, in order to solve the technical problems that the placement of the three-phase wires increases the size of the connector during actual use, and that the scattered distribution of the three-phase wires may cause the three-phase wires to rub against each other and pull, thereby increasing the overall failure rate of the drone.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a high-voltage connector for unmanned aerial vehicles (UAVs), comprising a male connector, three-phase male pins, three-phase wires and signal wires, wherein a female connector and a male connector back cover are respectively provided at both ends of the male connector, and a three-phase female connector is sleeved at one end of the three-phase wires, wherein a plastic spring sheet that mates with the three-phase female connector is provided on the male connector back cover, and a socket is provided inside the male connector, wherein the three-phase male pins slide with the female connector; A push rod is elastically inserted through the three-phase female connector, one end of which is connected to a clamp plate inside the three-phase female connector. A slot is provided on the outer wall of the three-phase female connector at the push rod, and a conical ring is provided on one side of the slot. One end of the signal line passes through to the female connector and is connected to a pin header inside the female connector.

[0007] By adopting the above technical solution, the plastic spring clip will be locked onto the outer wall of the three-phase female connector. The male connector will be threadedly connected to the female connector via a bolt assembly, preventing a bunch of three-phase wires from being exposed and hanging outside after being plugged in. The three-phase male pin will be inserted into the female connector and pushed into the three-phase female connector, realizing the electrical connection between the three-phase male pin and the three-phase wires. This also separates the three-phase wires, preventing them from swinging and wearing with other structural components after they are plugged in. Furthermore, the plastic spring clip will squeeze the top rod, causing the clamping plate on the inner wall to limit the insertion of the three-phase male pin into the outer wall of the three-phase female connector, thereby ensuring the stability of the connection between the three-phase male pin and the three-phase wires.

[0008] The present invention is further configured such that a flat hole is provided through the female connector, wherein the outer wall of the three-phase male pin is provided with a horizontal surface that mates with the flat hole.

[0009] Preferably, the flat opening ensures that when the operator inserts the three-phase male pins into the female connector, the consistency of the three-phase male pins is guaranteed, preventing the connection of the three-phase male pins from tilting and avoiding the need to adjust the angle of the three-phase male pins after subsequent installation.

[0010] The present invention is further configured such that the inner wall of the three-phase female connector is provided with an inner groove, wherein the depth of the inner groove is greater than the thickness of its clamping plate.

[0011] Preferably, the inner groove is designed to allow the clamping plate to be inserted into the inner groove by the push rod. The depth of the inner groove ensures that the clamping plate is completely inside the inner groove, so that the clamping plate will not obstruct the subsequent sliding connection of the three-phase male pins, thereby further improving the overall installation stability.

[0012] The present invention is further configured such that one end of the plastic spring is concave, and a conical surface is provided on the inner wall of the plastic spring, wherein the connection between one end of the plastic spring and the conical ring is smooth, and the outer diameter of one end of the conical surface is the same as the inner diameter of the plastic spring.

[0013] Preferably, the concave design facilitates the compression of the push rod during subsequent elastic reset, and the conical surface allows the plastic spring to slide towards the outer wall of the conical ring during the sliding of the three-phase female head, thus maintaining its positioning and fixation. After the plastic spring compresses the push rod, the outer wall of the conical ring will fully contact the inner wall of the plastic spring, further sealing the slot at the push rod and effectively preventing the sliding of the push rod from being limited during subsequent bonding.

[0014] The present invention is further configured such that the male connector and the male connector back cover are each provided with a first threaded hole, and the outer wall of the male connector and the female connector are each provided with a second threaded hole, wherein the first threaded hole and the second threaded hole are engaged by a bolt assembly.

[0015] Preferably, the male connector back cover and the male connector can be fixed by the cooperation of the first threaded hole and the bolt assembly, and then the male connector and the female connector can be fixed by the cooperation of the second threaded hole and the bolt assembly, thereby completing the overall fixing and installation work.

[0016] The present invention is further configured such that one end of the socket is open, and a smooth surface is provided on the inner wall of the socket.

[0017] Preferably, the open design facilitates the guidance of the three-phase female connector, and the smooth surface effectively reduces the sliding friction between the three-phase female connector and the socket, ensuring that the male connector back cover can be stably inserted into the interior of the male connector.

[0018] The present invention is further configured such that the inner wall of the clamping plate is provided with a flexible protective sleeve, wherein the flexible protective sleeve located on the inner wall of the clamping plate is detachable.

[0019] Preferably, the flexible protective sleeve prevents the clamp itself from directly contacting the outer wall of the three-phase male pin, effectively preventing wear on the outer wall of the three-phase male pin during the clamping process. At the same time, the flexible protective sleeve is made of insulating material, which can prevent leakage. Furthermore, its detachable design facilitates regular maintenance and replacement by staff.

[0020] The present invention is further configured such that the outer wall of the male connector is provided with a sealing ring, and the inner wall of the female connector is provided with a groove for the sealing ring to be inserted.

[0021] Preferably, the sealing ring ensures the seal between the male and female connectors, effectively reducing the amount of moisture in the air entering the male connector during drone flight. Furthermore, the inner groove of the female connector makes its contact with the sealing ring tighter, further improving the sealing effect between the male and female connectors.

[0022] The present invention is further configured such that an elastic component is provided in the interlayer of the three-phase female connector, wherein one end of the elastic component is fixedly connected to the three-phase female connector and the other end is connected to the outer wall of the top rod.

[0023] Preferably, under normal conditions, the push rod extends through the outer wall of the three-phase female connector. Under the action of the plastic spring sheet, the push rod will be squeezed and moved downward. At this time, the elastic component itself is compressed. Then, when the plastic spring sheet is removed, the push rod is reset and slid again by the reset action of the elastic component itself.

[0024] The present invention is further configured such that the outer wall of the top rod and one end of the plastic spring sheet are arc-shaped, and a smooth surface is provided at the arc-shaped end face.

[0025] Preferably, the arc shape facilitates the movement of the plastic spring sheet to the top of the top rod as it slides along the outer wall of the conical ring towards the top rod, thus completing the compression operation. Furthermore, the smooth surface of the arc end effectively reduces the sliding friction between the two, ensuring the stability of the plastic spring sheet sliding at the top rod.

[0026] In summary, the present invention has the following main beneficial effects: 1. This invention connects a three-phase female connector to a three-phase wire, then inserts it into the socket of a male connector. The male connector is secured to the outer wall of the female connector by a plastic spring. The male connector is then threadedly connected to the female connector via a bolt assembly, preventing a bunch of three-phase wires from being exposed and hanging outside after insertion. The three-phase male pin is then inserted into the female connector and pushed further in, achieving an electrical connection between the male pin and the three-phase wires. This separates the three-phase wires, preventing them from swaying and wearing with other structural components after insertion, and reducing indirect contact between the three-phase wire connection points and other structural components, effectively lowering the overall failure rate of the UAV. 2. This invention first inserts one end of the three-phase female connector into the plastic spring and pushes it inward a certain distance, so that the plastic spring contacts the outer wall of the conical ring. At this time, the three-phase male pin penetrates the female connector and is inserted into the three-phase female connector. Then, the male connector back cover is inserted into the male connector. Through the compression of the inner wall of the male connector, the plastic spring is reset to the slot. At this time, the slot limits the three-phase female connector, which can prevent the three-phase wires from sliding out. The plastic spring will also squeeze the top rod, which will drive the clamp on the inner wall to limit the insertion of the three-phase male pin into the outer wall of the three-phase female connector. This limits the three-phase male pin, thereby ensuring the stability of the connection between the three-phase male pin and the three-phase wires and preventing the three-phase male pin from slipping off during the flight of the UAV.

[0027] 3. The high-voltage connector of the present invention achieves the integration of high-voltage and low-voltage modules by realizing the plug-in connection of phase wires and the pin header connection of signal wires, resulting in a smaller product size, no risk of wear and tear, and higher safety. Attached Figure Description

[0028] Figure 1This is a perspective view of the present invention; Figure 2 This is an exploded view of the present invention; Figure 3 This is a schematic diagram of the three-phase male needle structure of the present invention; Figure 4 This is a schematic diagram of the male connector structure of the present invention; Figure 5 This is a schematic diagram of the three-phase line installation structure of the present invention; Figure 6 This is a cross-sectional view of the present invention; Figure 7 For the present invention Figure 6 Enlarged view of A in the middle; Figure 8 This is a schematic diagram of the male connector back cover structure of the present invention; Figure 9 This is a schematic diagram of the structure of the present invention when the three-phase male pin is connected to the three-phase line; Figure 10 For the present invention Figure 9 Enlarged view of B in the middle; Figure 11 This is a schematic diagram of the three-phase busbar structure of the present invention; Figure 12 For the present invention Figure 11 A magnified view of C.

[0029] Explanation of reference numerals in the attached figures: 1. Male connector; 2. Female connector; 3. Male connector back cover; 4. Three-phase wire; 5. Three-phase male pin; 6. Socket; 7. First threaded hole; 8. Second threaded hole; 9. Three-phase female connector; 10. Plastic spring; 11. Inner groove; 12. Push rod; 13. Clamping plate; 14. Slot; 15. Conical ring; 16. Signal wire; 17. Pin header; 18. Female header. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0031] The embodiments of the present invention will now be described.

[0032] Example 1: Please refer to Figures 1-12The high-voltage connector for a drone shown includes a male connector 1, a female connector 2, a male connector back cover 3, a sliding mechanism, a sealing mechanism, and a limiting mechanism. An array of slots is provided on the male connector back cover 3. Workers place stripped and tin-dipped three-phase wires 4 into the three-phase female connector 9, clamp the three-phase wires 4 and the three-phase female connector 9 using a tool, and then insert them into the corresponding slots on the male connector back cover 3. This separates the three-phase wires 4, preventing them from wobbling and wearing with other structural components after mating, and reducing indirect contact between the mating parts of the three-phase wires 4 and other structural components. Contact effectively reduces the overall failure rate of the drone. At the same time, one end of the signal line 16 passes through to the female connector 2, and a pin header 17 is connected inside the female connector 2. The signal line 16 is connected to the female connector 18. The pin header 17 is inserted into the female connector 18 at one end of the signal line 16 to achieve the integration of the low-voltage module. After it is fixed, potting compound is poured in for protection. At the same time, a plastic spring 10 is provided on the inner wall of the male connector back cover 3 at the slot. Since the outer diameter of one end of the three-phase female connector 9 is larger than the outer diameter of the other end, the plastic spring 10 will be stretched open during the inward sliding process. The three-phase female connector 9, with its two ends having different outer diameters, forms a groove 14 at the middle position. When the plastic spring 10 is located in the groove 14, it is reset by its own elasticity and then glued for waterproofing to ensure fixation and prevent dragging. A conical ring 15 is provided on one side of the outer wall of the three-phase female connector 9, located in the groove 14. The three-phase female connector 9 continues to slide to one side, so that the plastic spring 10 is located on the outer wall of the conical ring 15. Then, the operator inserts the three-phase male pin 5 through the female connector 2 and the male connector 1 into the interior of the three-phase female connector 9, thus integrating the high-voltage module. The integration of the low-voltage and high-voltage modules reduces the overall size, lowers the drone's load, and ensures its endurance. Simultaneously, the space within the module is used for glue application to the wire connection points, providing effective protection and waterproofing. The dust removal capability is greatly improved. When the three-phase male pin 5 and the three-phase line 4 are connected and plugged into the three-phase female connector 9, the first threaded hole 7 is provided on both the male connector 1 and the male connector back cover 3, and the second threaded hole 8 is provided on the outer wall of both the male connector 1 and the female connector 2. The first threaded hole 7 and the second threaded hole 8 are connected by bolt assembly. The assembly gap is then protected by potting compound. At this time, the male connector 1 and the female connector 2 are limited and fixed by the cooperation of the second threaded hole 8 and the bolt assembly, and the male connector back cover 3 is inserted into the male connector 1. Since the male connector 1 is provided with a socket 6 for the three-phase female connector 9 to be inserted, when the three-phase female connector 9 is completely inserted into the socket 6, it continues to slide to one side, which will push the plastic spring 10 to reset and move on the outer wall of the conical ring 15. Because a push rod 12 is elastically inserted through the three-phase female connector 9, with one end of the push rod 12 connected to a clamping plate 13 inside the three-phase female connector 9, and the push rod 12 located in the slot 14, the push rod 12 is squeezed during the sliding of the plastic spring sheet 10, causing the push rod 12 to drive the clamping plate 13 at the bottom to slide downwards. Since one end of the three-phase wire 4 is initially located on one side of the clamping plate 13, and the three-phase male pin 5 is in contact with the three-phase wire 4, one end of the three-phase male pin 5 will be at the bottom of the clamping plate 13. Under the action of the push rod 12, it will... The clamping plate 13 clamps and limits the three-phase male pin 5. Then, through the cooperation of the first threaded hole 7 and the bolt assembly, the male head cover 3 and the plug male head 1 can be fixed and limited, thus completing the overall fixed installation. The three-phase female head 9 is limited by the slot 14 to prevent the three-phase wire 4 from sliding out. This ensures the stability of the connection between the three-phase male pin 5 and the three-phase wire 4, and prevents the three-phase male pin 5 and the three-phase wire 4 from slipping off during the flight of the UAV, effectively reducing the overall failure rate of the UAV.

[0033] For details regarding the above embodiments, please refer to [link / reference]. Figure 3 and Figure 6 The female connector 2 has a through hole, and the outer wall of the three-phase male pin 5 has a horizontal surface that matches the through hole. The through hole ensures that when the operator inserts the three-phase male pin 5 into the female connector 2, the three-phase male pin 5 can maintain a consistent tilt, preventing tilting between the three-phase male pin 5 and avoiding the need to adjust the angle of the three-phase male pin 5 after installation.

[0034] For details regarding the above embodiments, please refer to [link / reference]. Figure 7 An inner groove 11 is provided on the inner wall of the three-phase female connector 9. The depth of the inner groove 11 is greater than the thickness of its clamping plate 13. The inner groove 11 is designed to facilitate the clamping plate 13 to be inserted into the inner groove 11 by the push rod 12. The depth of the inner groove 11 ensures that the clamping plate 13 is completely in the inner groove 11, so that the clamping plate 13 will not obstruct the subsequent sliding connection of the three-phase male connector 5, thereby further improving the overall installation stability.

[0035] For details regarding the above embodiments, please refer to [link / reference]. Figure 11 A flexible protective sleeve is provided on the inner wall of the clamping plate 13. The flexible protective sleeve is detachable and can prevent the clamping plate 13 from directly contacting the outer wall of the three-phase male pin 5. This effectively prevents wear on the outer wall of the three-phase male pin 5 during the clamping process. The flexible protective sleeve is made of insulating material to prevent leakage. The detachable design also makes it easy for staff to maintain and replace it regularly.

[0036] Example 2: Please refer to Figure 7 and Figure 10 The high-voltage connector for a drone shown has an overall structure similar to that of Embodiment 1. One end of the plastic spring 10 is concave, and a tapered surface is provided on the inner wall of the plastic spring 10. The connection between one end of the plastic spring 10 and the tapered ring 15 is smooth. The outer diameter of the tapered surface is the same as the inner diameter of the plastic spring 10. The concave design facilitates the compression of the top rod 12 during the subsequent elastic reset process. The tapered surface allows the plastic spring 10 to slide towards the outer wall of the tapered ring 15 during the sliding of the three-phase female head 9, thus still limiting and fixing it. After the plastic spring 10 compresses the top rod 12, the outer wall of the tapered ring 15 will fully contact the inner wall of the plastic spring 10, further sealing the slot at the top rod 12 and effectively preventing the sliding of the top rod 12 from being limited during subsequent bonding.

[0037] For details regarding the above embodiments, please refer to [link / reference]. Figure 10 The outer wall of the push rod 12 and one end of the plastic spring 10 are arc-shaped, and a smooth surface is provided at the arc-shaped end face. The arc shape facilitates the movement of the plastic spring 10 to the top of the push rod 12 when it slides through the outer wall of the conical ring 15 to complete the compression work. The smooth surface of the arc-shaped end face effectively reduces the sliding friction between the two, ensuring the stability of the plastic spring 10 sliding at the push rod 12.

[0038] In practical operation, this invention is used by fixing the stripped and tinned three-phase wires 4 to the three-phase female connector 9. Then, each set of three-phase wires 4 is inserted into the plastic spring 10 of the male connector back cover 3. At this time, one end of the plastic spring 10 will be pressed against the conical ring 15. The three-phase male pin 5 passes through the female connector 2 and the male connector 1 and is inserted into the three-phase female connector 9, so that the three-phase wires 4 are separated and placed separately. After the three-phase wires 4 are connected, they avoid swinging and wear with other structural components. At the same time, it reduces the indirect contact between the three-phase wires 4 and other structural components, effectively reducing the overall failure rate of the UAV. Furthermore, the male connector 1, the female connector 2 and the male connector back cover 3 are limited and fixed by the bolt assembly, so that there will be no situation where a bunch of three-phase wires 4 are exposed and hanging outside after being connected. Simultaneously, when the male connector back cover 3 is inserted into the socket 6 inside the male connector 1, one end of the socket 6 will push the three-phase female connector 9 to slide to one side. At this time, the plastic spring 10 will be stuck in the slot 14 of the three-phase female connector 9. The slot 14 limits the three-phase female connector 9, preventing the three-phase wire 4 from sliding out. The plastic spring 10 will also squeeze the push rod 12 on the three-phase female connector 9. During this process, the push rod 12 drives the clamping plate 13 at the bottom to limit and clamp the three-phase male pin 5, thereby ensuring the stability of the connection between the three-phase male pin 5 and the three-phase wire 4 and preventing the three-phase male pin 5 from slipping off the three-phase wire 4 during the drone's flight.

[0039] The high-voltage connector of this invention integrates high-voltage and low-voltage modules by realizing the plug-in connection of phase wires and the pin header connection of signal wires, resulting in a smaller product size, no risk of wear, and higher safety.

[0040] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the invention and are not intended to limit it. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the invention, but such modifications, substitutions, and variations are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A high-voltage connector for unmanned aerial vehicles (UAVs), comprising a male connector (1), three-phase male pins (5), three-phase wires (4), and a signal wire (16), wherein the two ends of the male connector (1) are respectively provided with a female connector (2) and a male connector back cover (3), characterized in that: One end of the three-phase line (4) is fitted with a three-phase female connector (9), wherein the male connector back cover (3) is provided with a plastic spring (10) that mates with the three-phase female connector (9), and the male connector (1) is provided with a socket (6), and its three-phase male pin (5) is slidably engaged with the female connector (2). A push rod (12) is elastically inserted through the three-phase female connector (9). One end of the push rod (12) is connected to a clamp plate (13) inside the three-phase female connector (9). A slot (14) is provided on the outer wall of the three-phase female connector (9) at the push rod (12). A conical ring (15) is provided on one side of the slot (14). One end of the signal line (16) passes through to the connector female connector (2) and is connected to a pin header (17) inside the connector female connector (2).

2. The UAV high-voltage connector according to claim 1, characterized in that: The female connector (2) has a through hole, and the outer wall of the three-phase male pin (5) has a horizontal surface that matches the through hole.

3. The UAV high-voltage connector according to claim 1, characterized in that: The inner wall of the three-phase female connector (9) is provided with an inner groove (11), wherein the depth of the inner groove (11) is greater than the thickness of its clamping plate (13).

4. The UAV high-voltage connector according to claim 1, characterized in that: One end of the plastic spring (10) is concave, and a conical surface is provided on the inner wall of the plastic spring (10). The connection between one end of the plastic spring (10) and the conical ring (15) is smooth. The outer diameter of one end of the conical surface is the same as the inner diameter of the plastic spring (10).

5. The UAV high-voltage connector according to claim 1, characterized in that: The male connector (1) and the male connector back cover (3) are both provided with a first threaded hole (7), and the outer walls of the male connector (1) and the female connector (2) are both provided with a second threaded hole (8). The first threaded hole (7) and the second threaded hole (8) are connected by a bolt assembly.

6. The UAV high-voltage connector according to claim 1, characterized in that: One end of the socket (6) is open, and a smooth surface is provided on the inner wall of the socket (6).

7. The UAV high-voltage connector according to claim 1, characterized in that: The inner wall of the clamp (13) is provided with a flexible protective sleeve, wherein the flexible protective sleeve located on the inner wall of the clamp (13) is detachable.

8. The UAV high-voltage connector according to claim 1, characterized in that: The outer wall of the male connector (1) is provided with a sealing ring, and the inner wall of the female connector (2) is provided with a groove for the sealing ring to be inserted.

9. The UAV high-voltage connector according to claim 1, characterized in that: An elastic component is provided in the interlayer of the three-phase female connector (9), wherein one end of the elastic component is fixedly connected to the three-phase female connector (9), and the other end is connected to the outer wall of the top rod (12).

10. The UAV high-voltage connector according to claim 1, characterized in that: The outer wall of the top rod (12) and one end of the plastic spring sheet (10) are arranged in an arc shape, and a smooth surface is provided at its arc-shaped end face.

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