Low-altitude economic unmanned aerial vehicle battery replacement scheduling device based on green energy charging network

Abstract

The invention discloses a low-altitude economic unmanned aerial vehicle battery replacement dispatching device based on a green energy charging network. The low-altitude economic unmanned aerial vehicle battery replacement dispatching device comprises a base, a lifting platform, a battery bracket set, a clamping mechanism and an energy state linkage assembly. An annular guide rail is arranged at the top of the base, the lifting platform is in sliding connection with the base through a vertical guide column, the battery bracket set is distributed along the annular guide rail and can rotate, the clamping mechanism is arranged above the lifting platform, and the energy state linkage assembly is in transmission fit with a driving rack through a pressure sensing plate, a floating ejector pin and a linkage lever. According to the invention, rapid identification, matching and replacement of multi-model unmanned aerial vehicle batteries can be realized, and stable scheduling operation in a green energy power supply fluctuation scene can be adapted.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of transportation and power supply intersection, in particular to a low-altitude economic unmanned aerial vehicle battery replacement scheduling device based on green energy charging network. BACKGROUND

[0002] Low-altitude economic unmanned aerial vehicles are increasingly widely used in fields such as logistics distribution, inspection and monitoring, and emergency rescue, and their operation relies on an efficient and reliable energy supply system. The charging network based on green energy (such as photovoltaic and wind energy) provides sustainable power support for unmanned aerial vehicles, which helps to reduce carbon emissions and improve operational economy. In such a system, the unmanned aerial vehicle battery replacement scheduling device undertakes the key functions of battery replacement, state detection and energy management, and usually includes a battery compartment, a mechanical arm, an identification module and a control system.

[0003] Existing unmanned aerial vehicle battery replacement scheduling devices mostly adopt fixed or semi-automatic structural design. In actual operation, in the face of complex working conditions such as multi-model compatibility, high-frequency battery replacement demand, and green energy power supply fluctuation, there are certain limitations in scheduling response speed and battery matching accuracy. Especially in scenarios where green energy output is unstable or load changes are large, there is still room for optimization in the coordination and scheduling of battery charging and discharging states in existing devices, which may affect the efficiency of battery replacement and the overall stability of system operation. SUMMARY

[0004] The purpose of the present application is to provide a low-altitude economic unmanned aerial vehicle battery replacement scheduling device based on green energy charging network, which solves the problems mentioned in the background art.

[0005] The present application is implemented as follows: a low-altitude economic unmanned aerial vehicle battery replacement scheduling device based on green energy charging network, comprising a base, a lifting platform, a battery carrier group, a clamping mechanism and an energy state linkage assembly, wherein: The base is a whole support structure, the top of which is provided with an annular guide rail; the lifting platform is slidably connected with the base through a vertical guide column, and the bottom of the lifting platform is provided with a driving rack; the battery bracket group is composed of a plurality of independent brackets, each bracket is distributed circumferentially along the annular guide rail and can rotate around its own axis, and each bracket is provided with a groove for accommodating a battery, and the inner wall of the groove is provided with an elastic buckle and a contact electrode sheet; the clamping mechanism is arranged above the lifting platform and includes a pair of symmetrically arranged arc-shaped clamping arms, the inner side of the clamping arm is provided with a buffer pad, the clamping arm is connected with the lifting platform through a transverse connecting rod, and the middle of the connecting rod is provided with a return spring; the energy state linkage assembly includes a pressure sensing plate, a floating ejector pin and a linkage lever, the pressure sensing plate is embedded at the bottom of the groove of each battery bracket, the floating ejector pin is vertically arranged on the bottom surface of the bracket and is in contact with the pressure sensing plate below, one end of the linkage lever is hinged to the side wall of the base, the other end is in abutment with the bottom of the floating ejector pin, and the middle of the lever is provided with a transmission gear meshing with the driving rack.

[0006] Optionally, the outer periphery of the vertical guide column of the lifting platform is sleeved with a shock-absorbing rubber sleeve, and the two ends of the shock-absorbing rubber sleeve are fixedly connected with the base and the lifting platform respectively, so as to absorb the vibration impact in the lifting process.

[0007] Optionally, the inner wall of the groove of the battery bracket is provided with a retractable positioning pin, the positioning pin is connected with the side wall of the groove through a micro torsional spring, when the battery is inserted into the groove, the battery shell presses the positioning pin to make it retract, and after the battery is completely in place, the positioning pin is ejected and clamped into the corresponding hole of the battery shell under the action of the torsional spring.

[0008] Optionally, the inner side of the arc-shaped clamping arm of the clamping mechanism is provided with a friction pattern of non-metallic material, the friction pattern is spirally distributed, and is used for increasing the static friction force with the bottom shell of the unmanned aerial vehicle during clamping to prevent slipping.

[0009] Optionally, the energy state linkage assembly further includes an indicator flag, the indicator flag is fixedly connected to one end of the linkage lever close to the transmission gear, the outside of the base is provided with a transparent observation window, the rear of the observation window is provided with a color mark area corresponding to the color of the indicator flag, and the color mark area is used for directly displaying the charging and discharging state of the battery in the corresponding bracket.

[0010] Optionally, the inside of the base is provided with a counterweight cavity, the counterweight cavity is filled with high-density metal particles, and the top of the counterweight cavity is provided with a detachable cover plate, which is used for adjusting the overall gravity center position of the device according to the wind load condition on site, and improving the outdoor operation stability.

[0011] Optionally, the surface of the annular guide rail is provided with lubricating micro-holes, the lubricating micro-holes are communicated with an oil storage bag in the base through an embedded capillary tube, and the oil storage bag is made of temperature-sensitive material and automatically releases a small amount of lubricating oil to the surface of the guide rail when the ambient temperature rises.

[0012] Optionally, the contact electrode sheet adopts silver-plated copper alloy material, and a surface thereof is provided with an anti-oxidation coating; the electrode sheet is connected with a state acquisition circuit in the base through a flexible lead wire, and an electromagnetic shielding braid layer is wrapped outside the flexible lead wire.

[0013] Optionally, a tooth surface of the driving rack is provided with a wear-resistant ceramic coating, and a transmission gear engaged with the tooth surface is made of a powder metallurgy process; the transmission gear is internally provided with a through heat dissipation channel, and the heat dissipation channel is open at both ends to the side surface of the transmission gear, and is used for dissipating friction heat in the process of frequent engagement.

[0014] The low-altitude economic unmanned aerial vehicle battery replacement scheduling device based on a green energy charging network has the following beneficial effects: The device realizes physical compatibility and reliable fixing of different sizes of batteries through the battery bracket group distributed in a ring shape and capable of rotating independently, cooperates with the elastic buckle and the positioning pin in the groove, and converts the weight information of the battery into mechanical displacement through the combination of the pressure sensing plate and the floating ejector pin, and transmits the mechanical displacement to the driving rack through the linkage lever and the transmission gear, so that the initial height of the lifting platform is associated with the current state of charge of the battery without intervention of an electronic control unit; the arc-shaped clamping arms of the clamping mechanism combine with the buffer pad layer and the friction pattern to form a stable clamping force when contacting the unmanned aerial vehicle body, so that docking failure caused by wind disturbance or body shaking is avoided; the counterweight cavity and the damping rubber sleeve are arranged to effectively suppress the shaking of the device caused by wind or uneven ground in an outdoor environment, so as to ensure the mechanical precision of high-frequency battery replacement operation; the cooperation of the lubricating micropores and the temperature-sensitive oil storage bag ensures that the ring-shaped guide rail maintains a low friction coefficient in long-term outdoor use, prolonging the service life of the moving parts; the anti-oxidation and electromagnetic shielding design of the contact electrode sheet ensures the continuity and anti-interference ability of the battery state signal acquisition. The above-mentioned structure cooperates to make the device maintain high scheduling response speed and battery matching accuracy in the complex working conditions of fluctuation of green energy power supply and frequent response to multi-model battery replacement tasks, and improve the operation reliability of the entire low-altitude economic energy supply network. Figure 1 It is a schematic diagram of the overall structure of the present application; Figure 2 It is a schematic diagram of the internal structure of the base of the present application; Figure 3 It is a schematic diagram of the clamping mechanism structure of the present application; Figure 4 It is a schematic diagram of the base and lifting platform structure of the present application; Figure 5 It is a schematic diagram of the independent bracket structure of the present application; Figure 6 It is a schematic diagram of the driving rack structure of the present application; Explanation of reference signs: 1, base; 2, lifting platform; 3, battery bracket group; 4, clamping mechanism; 5, energy state linkage assembly; 6, annular guide rail; 7, vertical guide column; 8, drive rack; 9, independent bracket; 10, groove; 11, elastic buckle; 12, contact electrode sheet; 13, arc-shaped clamping arm; 14, buffer pad; 15, transverse connecting rod; 16, return spring; 17, pressure sensing plate; 18, floating ejector pin; 19, linkage lever; 20, transmission gear; 21, shock absorbing rubber sleeve; 22, positioning pin; 23, micro torsional spring; 24, frictional texture; 25, indicator flag; 26, transparent observation window; 27, counterweight cavity. DETAILED DESCRIPTION The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0015] Please refer to Figures 1 to 4 The embodiment of the present application provides a low-altitude economic unmanned aerial vehicle battery replacement scheduling device based on a green energy charging network. The device is suitable for outdoor low-altitude economic operation environment. In the presence of fluctuation of green energy power supply, mixed use of multiple models, frequent battery replacement demand and other complex working conditions, the device can realize fast identification, accurate matching and efficient replacement of different specifications of batteries. The embodiment avoids relying on an electronic control unit through self-adaptive linkage design of a mechanical structure, and improves the running stability and response speed of the device in extreme environments.

[0016] As Figure 1 shown, the device as a whole includes a base 1, a lifting platform 2, a battery bracket group 3, a clamping mechanism 4 and an energy state linkage assembly 5. The base 1 is the support main body of the whole device, which is made of high-strength alloy casting, and the top of which is provided with an annular guide rail 6. The annular guide rail 6 is in the form of a closed circular ring, the surface of which is hardened and provided with lubricating micro-holes. The lubricating micro-holes are communicated with an oil storage bag inside the base 1 through an embedded capillary tube. The oil storage bag is made of temperature-sensitive material. When the ambient temperature rises, the volume of the oil storage bag expands, and a small amount of lubricating oil is automatically released to the lubricating micro-holes, thereby covering the surface of the annular guide rail 6, maintaining its low friction coefficient, and ensuring smooth operation of the moving parts during long-term outdoor use.

[0017] The lifting platform 2 is located above the base 1 and is slidably connected with the base 1 through four vertical guide columns 7. The vertical guide columns 7 are vertically fixed at the top four corner positions of the base 1, and a damping rubber sleeve 21 is sleeved on the outer periphery of the vertical guide columns 7. The two ends of the damping rubber sleeve 21 are fixedly connected with the base 1 and the lifting platform 2 respectively, and the damping rubber sleeve 21 is made of high-damping rubber material and is used for absorbing the impact energy caused by wind load or ground vibration during the up-down movement of the lifting platform 2, so as to prevent structural resonance from affecting the battery replacement accuracy. A driving rack 8 is arranged at the bottom center position of the lifting platform 2, and the driving rack 8 extends in the vertical direction, and the tooth surface of the driving rack 8 is sprayed with a wear-resistant ceramic coating to resist wear caused by frequent meshing.

[0018] The battery bracket group 3 is installed on the annular guide rail 6 and is composed of a plurality of independent brackets 9 uniformly distributed along the circumferential direction of the annular guide rail 6. The bottom of each independent bracket 9 is provided with a ball bearing, so that the independent bracket 9 can freely rotate around its vertical axis on the annular guide rail 6. A groove 10 is formed in the top of the independent bracket 9, and the groove 10 is used to accommodate the battery of the unmanned aerial vehicle. The inner wall of the groove 10 is provided with an elastic buckle 11 and a contact electrode sheet 12. The elastic buckle 11 is formed by bending a spring steel sheet, one end of the elastic buckle 11 is fixed to the side wall of the groove 10, and the other end of the elastic buckle 11 is suspended towards the center of the groove 10, and the elastic buckle 11 is used to automatically clamp the battery shell after the battery is inserted. The contact electrode sheet 12 is embedded on both sides of the bottom of the groove 10, is made of silver-plated copper alloy material, and has a surface coated with an anti-oxidation coating. The contact electrode sheet 12 is connected with a state acquisition circuit in the base 1 through a flexible lead. The flexible lead is wrapped with an electromagnetic shielding braid layer on the outer layer to suppress the influence of external electromagnetic interference on the acquisition of the battery state signal.

[0019] As shown in Figure 2 , the inner wall of the groove 10 is also provided with a retractable positioning pin 22. The positioning pin 22 is connected with the side wall of the groove 10 through a micro torsional spring 23 and is in a pop-up state in a normal state. When the battery is inserted into the groove 10, the battery shell presses the positioning pin 22 to make the positioning pin 22 retract against the elastic force of the micro torsional spring 23. After the battery is completely positioned, the positioning pin 22 is popped up and clamped into a corresponding hole position of the battery shell under the action of the micro torsional spring 23, so as to realize accurate positioning and anti-falling locking of the battery.

[0020] The clamping mechanism 4 is arranged above the lifting platform 2, as shown in Figure 3As shown, it includes a pair of symmetrically arranged arc-shaped clamping arms 13. The arc-shaped clamping arms 13 are in a C-shaped structure, and the inner side is attached with a cushion pad layer 14 made of silica gel or polyurethane material with a thickness of five to eight millimeters for absorbing impact and dispersing pressure when clamping the UAV body. The arc-shaped clamping arms 13 are connected with the lifting platform 2 through transverse connecting rods 15, and the middle part of the transverse connecting rods 15 is provided with a reset spring 16, the two ends of the reset spring 16 are fixedly connected with the two transverse connecting rods 15 respectively, so that the arc-shaped clamping arms 13 remain open under no external force. When the UAV lands in the battery replacement area, the bottom of the UAV body contacts the inner side of the arc-shaped clamping arms 13, pushes the transverse connecting rods 15 to compress the reset spring 16 inward, so that the arc-shaped clamping arms 13 are closed and clamp the bottom of the UAV. The inner side of the arc-shaped clamping arms 13 is also provided with a friction pattern 24 made of non-metallic material, which is distributed in a spiral shape and formed by a laser etching process, for increasing the static friction between the UAV bottom shell to prevent slipping when the UAV body shakes in the wind.

[0021] The energy state linkage assembly 5, as shown in Figure 4 includes a pressure sensing plate 17, a floating ejector pin 18, a linkage lever 19 and a transmission gear 20. The pressure sensing plate 17 is embedded at the bottom of the groove 10 of each independent bracket 9 and is made of elastic metal sheet, and the bottom thereof is in contact with the top end of the floating ejector pin 18. The floating ejector pin 18 is vertically arranged in the bottom surface of the independent bracket 9 and can slide up and down in the bracket. The linkage lever 19 is hingedly connected to the side wall of the base 1 at one end, abuts against the bottom of the floating ejector pin 18 at the other end, and is provided with the transmission gear 20 in the middle. When the battery is placed in the groove 10, the weight of the battery deforms the pressure sensing plate 17 downward, pushes the floating ejector pin 18 downward, and further drives the linkage lever 19 to rotate around the hinge point, so that the transmission gear 20 moves upward and engages with the drive rack 8. The higher the state of charge of the battery, the greater the weight of the battery (due to the difference in mass caused by the change in the internal electrolyte density of the battery in the full charge state), the greater the deformation of the pressure sensing plate 17, the longer the downward distance of the floating ejector pin 18, the greater the rotation angle of the linkage lever 19, and the higher the lifting height of the transmission gear 20, so as to drive the lifting platform 2 to rise to the initial height corresponding to the state of charge of the battery. This mechanism does not need electronic sensors or controllers, and only through pure mechanical linkage can the state of charge of the battery be associated with the initial position of the lifting platform 2.

[0022] The indicating flag 25 is fixedly connected to the linkage lever 19 near one end of the transmission gear 20. The base 1 is provided with a transparent observation window 26 on the outside, and a color mark area corresponding to the color of the indicating flag 25 is provided behind the transparent observation window 26. The color mark area is divided into three sections of green, yellow and red, corresponding to high, medium and low power states respectively. When the linkage lever 19 rotates, the indicating flag 25 swings with it, and the current charging and discharging state of the battery in the bracket can be directly read through the transparent observation window 26, which is convenient for operation and maintenance personnel to quickly judge whether it is necessary to replace or recharge.

[0023] The base 1 is provided with a counterweight cavity 27 in the center of the bottom, which is filled with high-density metal particles such as tungsten alloy particles or lead particles. The top of the counterweight cavity 27 is provided with a detachable cover plate fixed by bolts. When the device is deployed in an area with large wind load, the overall gravity center can be reduced by increasing the filling amount of metal particles to improve the anti-overturning ability; in the scene with small wind load or frequent movement, the filling amount can be reduced to reduce the overall weight. This design makes the device have on-site adaptability to meet the stability requirements in different geographical environments.

[0024] The meshing part of the drive rack 8 and the transmission gear 20 is a high-frequency action area. In order to prolong the service life, the tooth surface of the drive rack 8 is provided with a wear-resistant ceramic coating, and the transmission gear 20 is integrally formed by powder metallurgy process and is provided with a through heat dissipation channel. The heat dissipation channel penetrates along the gear axis and opens at the side surface of the gear at both ends to form an air convection path. In the process of frequent meshing, the heat generated by friction is dissipated to the external environment through the heat dissipation channel to prevent the gear from softening or deforming due to temperature rise.

[0025] The battery replacement operation process of the present application is as follows: when the unmanned aerial vehicle completes the task and lands on the battery replacement platform area, the bottom of the unmanned aerial vehicle first contacts the arc-shaped clamping arm 13 of the clamping mechanism 4, which is automatically closed under the action of the return spring 16 to clamp the bottom of the unmanned aerial vehicle. At the same time, the lifting platform 2 has been pre-adjusted to a height matching the state of charge of the battery to be replaced according to the mechanical signal transmitted by the energy state linkage assembly 5. Then, one of the independent battery holders 9 in the battery holder group 3 rotates to a position directly opposite the battery compartment of the unmanned aerial vehicle, and the positioning pin 22 in the groove 10 cooperates with the elastic buckle 11 to accurately load the new battery into the battery compartment of the unmanned aerial vehicle, while the old battery is pushed into the groove 10 and locked by the elastic buckle 11 and the positioning pin 22. The whole process does not need manual intervention, and all actions are completed by mechanical structure and are not affected by power grid fluctuation or communication interruption.

[0026] In the multi-type mixed scene, the battery sizes used by different UAVs are different. Since each independent bracket 9 can rotate independently, and the recess 10 is provided with an elastic buckle 11 and a retractable positioning pin 22, it can adapt to the width and positioning hole position of different batteries, realize physical compatibility. The contact electrode sheet 12 always maintains good contact with the battery contact, ensuring continuous transmission of the state signal.

[0027] In summary, the present application constructs a set of high-reliability and high-adaptability UAV battery replacement scheduling device through the rotatable independent bracket 9 on the annular guide rail 6, the pure mechanical energy state linkage assembly 5, the clamping mechanism 4 with buffering and anti-skid functions, and the base 1 integrated with shock absorption and counterweight adjustment. In the actual application scene of unstable green energy power supply, complex outdoor environment and coexistence of multiple types, the device can still maintain stable battery replacement accuracy and rapid response ability, providing solid hardware support for low-altitude economic energy supply network.

[0028] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A low-altitude economic unmanned aerial vehicle battery replacement scheduling device based on a green energy charging network, characterized in that, The utility model relates to a battery charging device, including base (1), lift platform (2), battery bracket group (3), clamping mechanism (4) and energy state linkage assembly (5), wherein: the top of base (1) is equipped with annular guide rail (6), lift platform (2) is connected through vertical guide column (7) with base (1) sliding, and lift platform (2) bottom is equipped with drive rack (8), battery bracket group (3) is by a plurality of independent bracket (9) and is circumferentially distributed along annular guide rail (6) and is constituted, and every independent bracket (9) can rotate around its own axis, is equipped with recess (10) on it, and the inner wall of recess (10) is equipped with elastic buckle (11) and contact type electrode sheet (12), clamping mechanism (4) is located above lift platform (2), including a pair of symmetrical arrangement arc clamping arm (13), and the inboard of arc clamping arm (13) is equipped with buffer pad layer (14), and is connected through horizontal connecting rod (15) with lift platform (2), and the middle part of horizontal connecting rod (15) is equipped with reset spring (16), energy state linkage assembly (5) includes pressure sensing plate (17), floating ejector pin (18) and linkage lever (19), and pressure sensing plate (17) is embedded in recess (10) bottom, and floating ejector pin (18) is vertically worn in independent bracket (9) bottom surface and is contacted with pressure sensing plate (17) below, and one end of linkage lever (19) is hinged to base (1) side wall, and the other end is contacted with the bottom of floating ejector pin (18), and the middle part of linkage lever (19) is equipped with transmission gear (20) with drive rack (8) meshing. 2.The low-altitude economic unmanned aerial vehicle battery swapping scheduling device based on a green energy charging network according to claim 1, characterized in that: The outer periphery of the vertical guide column (7) is sleeved with a shock-absorbing rubber sleeve (21), and the shock-absorbing rubber sleeve (21) is fixedly connected with the base (1) and the lifting platform (2) at both ends. 3.The low-altitude economic unmanned aerial vehicle battery swapping scheduling device based on a green energy charging network according to claim 1, characterized in that: The inner wall of the recess (10) is provided with a retractable positioning pin (22), and the positioning pin (22) is connected with the side wall of the recess (10) through a micro torsional spring (23). 4.The low-altitude economic unmanned aerial vehicle battery swapping scheduling device based on a green energy charging network according to claim 1, characterized in that: The inboard of the arc clamping arm (13) is provided with a friction pattern (24) of non-metallic material, and the friction pattern (24) is distributed in a spiral shape. 5.The low-altitude economic unmanned aerial vehicle battery swapping scheduling device based on a green energy charging network according to claim 1, characterized in that: The energy state linkage assembly (5) further includes an indicator flag (25), which is fixedly connected to one end of the linkage lever (19) near the transmission gear (20). A transparent observation window (26) is provided on the outside of the base (1), and a color scale area corresponding to the color of the indicator flag (25) is provided behind the transparent observation window (26). 6.The low-altitude economic unmanned aerial vehicle battery swapping scheduling device based on a green energy charging network according to claim 1, characterized in that: The inside of the base (1) is provided with a counterweight cavity (27) filled with high-density metal particles, and the top of the counterweight cavity (27) is provided with a detachable cover plate. 7.The low-altitude economic unmanned aerial vehicle battery swapping scheduling device based on a green energy charging network according to claim 1, characterized in that: The surface of the annular guide rail (6) is provided with lubricating micro-holes, which are communicated with an oil storage bag in the base (1) through an embedded capillary tube, and the oil storage bag is made of temperature-sensitive material. 8.The low-altitude economic unmanned aerial vehicle battery swapping scheduling device based on a green energy charging network of claim 1, wherein: The contact type electrode sheet (12) is made of silver-plated copper alloy material, and has an anti-oxidation coating on the surface. The electrode sheet is connected with a state acquisition circuit in the base (1) through a flexible lead, and the flexible lead is wrapped with an electromagnetic shielding braid layer on the outer layer.

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