A drone battery pack

Abstract

The present invention discloses a drone battery pack, which belongs to the technical field of battery packs, and includes a soft-pack battery pack and a leveling simulation platform. The leveling simulation platform is provided with a leveling simulation component to provide a horizontal placement environment for the soft-pack battery pack. The soft-pack battery pack is provided with a leveling unit for leveling the soft-pack lithium battery when it is assembled and when it is in service on a drone. The present invention cooperates with an assembly leveling component and a service leveling component to make the soft-pack lithium battery pack self-balanced during assembly and use of the soft-pack lithium battery pack, ensuring that the drone will not tilt during flight due to the imbalance of the soft-pack lithium battery pack, and through an assembly isolation box equipped with a heat-conducting column and the soft-pack lithium battery, it can be leveled in real time by a liquid low-temperature curing glue when each soft-pack lithium battery is assembled, ensuring that the soft-pack battery pack is still in a balanced state after each soft-pack lithium battery is added during the assembly process.

Description

Technical Field

[0001] The present invention relates to the technical field of battery packs, and in particular to a battery pack for unmanned aerial vehicles. Background Art

[0002] A drone is an unmanned aircraft operated by a radio remote control device and its own preset program control device. Its operating power is provided by the battery installed on it. Due to the weight specification of the drone itself, the weight of the battery it is equipped with must also be controlled within a certain range. In order to extend the flight time of the drone, it is usually equipped with a replaceable battery pack. The low-power drone battery pack can be replaced in time, and a special battery pack fixing installation position will be added to the drone to facilitate quick disassembly and assembly of the battery pack.

[0003] In order to control the overall weight of the drone and to adapt to the usage specifications of various drones, most drones currently use soft-pack lithium batteries as their battery pack components to power them. However, since the drone needs to complete shooting tasks during flight, the overall balance of the drone is required to be high, and the soft-pack lithium battery pack needs to remain balanced during installation.

[0004] The soft-pack lithium battery packs currently used in drones are made by bundling and fixing multiple soft-pack lithium batteries in a packaging bag. Before the bundling and assembly process, each soft-pack lithium battery will undergo slight deformation due to transportation and storage. When they are directly bundled and assembled, the assembled soft-pack lithium battery pack will not balance itself when in use (when placed vertically or horizontally in the drone). As a result, the drone will fail to level the gimbal during flight due to the unbalanced soft-pack lithium battery pack, resulting in tilted flight. The drone will not be able to complete the shooting mission and there is even the possibility of the drone exploding. Summary of the invention

[0005] The purpose of the present invention is to solve the problem that the existing soft-pack lithium battery pack is not self-balanced when in use, resulting in the failure of gimbal leveling and tilted flight during the flight of the drone due to the soft-pack lithium battery pack being not in a balanced state, and the drone cannot complete the shooting task, and there is even the possibility of the drone exploding. A drone battery pack is proposed.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A drone battery pack, comprising a soft-pack battery pack and a leveling simulation platform installed on the drone, wherein the soft-pack battery pack is assembled from a plurality of soft-pack lithium batteries, the leveling simulation platform is provided with a leveling simulation component to provide a horizontal placement environment for the soft-pack battery pack, the soft-pack battery pack is provided with a leveling unit, the leveling unit is composed of an assembly leveling component and a service leveling component, the assembly leveling component is used to level the soft-pack lithium batteries during assembly, and the service leveling component is used to level the soft-pack battery pack when it is in service on the drone;

[0008] The leveling simulation assembly includes a balance board arranged on the top of the leveling simulation platform, a battery placement slot is arranged on the top of the balance board to provide a horizontal placement platform for the soft-pack battery pack, the bottom of the balance board is movably connected to the top of the leveling simulation platform through a spherical connecting column, and a pressure sensor is arranged on the top of the leveling simulation platform at the bottom corner of the balance board, and the pressure sensor is arranged in plurality, which is used to judge the assembly balance state and service balance state of the soft-pack battery pack;

[0009] The assembly leveling component includes an installation limit frame arranged on the outer surface of the soft-pack lithium battery, and an assembly isolation box arranged equidistantly and linearly is arranged in the installation limit frame, a heat-conducting column is fixed in the assembly isolation box, and an isolation pad is wrapped outside the assembly isolation box, and a rotationally distributed assembly leveling pressing piece is slidably connected in the installation limit frame, and the sliding horizontal plane height of the assembly leveling pressing piece is lower than the height of the upper surface of the isolation pad. When the assembly leveling pressing piece slides into the installation limit frame, it will press down the top of the isolation pad here, and drive the liquid in the assembly isolation box to the rest, so as to achieve assembly leveling;

[0010] The service leveling component includes a service balancing bracket arranged outside the soft-pack battery pack, a leveling cylinder is arranged in the service balancing bracket, a stabilizing electric push rod is arranged in the leveling cylinder, and a closing plug is arranged at the push rod portion of the stabilizing electric push rod.

[0011] Preferably, the balance board is movably connected to a simulation installation limit plate via a limit block, and a limit sliding plate fixed by bolts is fixedly installed at the bottom of the simulation installation limit plate.

[0012] Preferably, a wiring spacer for assembling adjacent soft-pack lithium batteries is provided in the assembly isolation box, and a unidirectional conductive injection hole is opened on the assembly isolation box.

[0013] Preferably, a heat conducting sheet is fixed to the side of the heat conducting column away from the assembly isolation box, and a plurality of the heat conducting columns are provided and symmetrically distributed on the assembly isolation box.

[0014] Preferably, low-temperature curing glue is injected into the isolation pad through the injection hole, and the low-temperature curing glue adopts low-temperature curing epoxy resin.

[0015] Preferably, a plurality of the leveling cylinders are provided, the plurality of the leveling cylinders are interconnected, and ether alcohol solution is contained in the leveling cylinders.

[0016] Preferably, the connecting part of the leveling cylinder is arranged at the corner of the service balancing bracket, and the connecting part of the leveling cylinder is closed by a closing plug, a connecting hole is provided in the push rod part above the closing plug of the stabilizing electric push rod, and a closing column adapted to the connecting part of the leveling cylinder is arranged on the outside of the closing plug, and the closing column is connected to a closing ring through a compression spring.

[0017] Preferably, the bottom of the leveling cylinder is sealingly and slidingly connected to a service leveling plug, and the bottom of the service leveling plug is threadedly connected to a service leveling screw, and the service leveling screw is rotated by a service leveling knob to drive the service leveling plug to rise and fall.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. By assembling the leveling components and the service leveling components, the soft-pack lithium battery pack can be self-balanced during assembly and use, ensuring that the drone will not tilt during flight due to the imbalance of the soft-pack lithium battery pack, thereby protecting the drone from flying.

[0020] 2. Through the assembly isolation box equipped with thermal conductive columns, soft-pack lithium batteries and assembly leveling pressing sheets, each soft-pack lithium battery can be leveled in real time through liquid low-temperature curing glue when it is assembled, ensuring that the soft-pack battery pack is still in a balanced state after adding each soft-pack lithium battery during the assembly process.

[0021] 3. Through the stable electric push rod, leveling cylinder and service leveling plug equipped with a closed plug, the service leveling operation can be performed each time the soft-pack battery pack is inserted, so as to avoid slight squeezing of the edge due to the inertia of the soft-pack battery pack during flight of the UAV, causing deformation, and the imbalance of the UAV caused by the main power supply line in the line array being inserted into the UAV and the arrangement of the line array causing deviation in the overall mass distribution of the soft-pack battery pack, thereby ensuring that the balance state of the UAV is not affected by the battery pack and takes off normally. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of a drone battery pack proposed by the present invention;

[0023] Figure 2 For the present invention Figure 1 A magnified view of the structure at center A;

[0024] Figure 3 This is an overall structural assembly view of a drone battery pack proposed by the present invention;

[0025] Figure 4 For the present invention Figure 3 A magnified view of the structure at B in the middle;

[0026] Figure 5 This is a structural assembly view of a leveling simulation platform for a drone battery pack proposed by the present invention;

[0027] Figure 6 This is a structural assembly view of a soft-pack battery pack of a drone battery pack proposed by the present invention;

[0028] Figure 7 This is a schematic diagram of the internal structure of an assembly isolation box of a drone battery pack proposed by the present invention;

[0029] Figure 8 This is a schematic diagram of the internal structure of the cross section of a leveling cylinder of a drone battery pack proposed by the present invention.

[0030] In the figure: 1. soft-pack battery pack; 11. soft-pack lithium battery; 2. leveling simulation table; 21. balance board; 211. spherical connecting column; 212. limit block; 22. pressure sensor; 23. simulated installation limit plate; 231. limit slide plate; 3. installation limit frame; 31. assembly isolation box; 311. injection hole; 32. thermal conductive column; 321. thermal conductive sheet; 33. isolation pad; 34. assembly leveling pressure sheet; 4. service balance bracket; 41. leveling cylinder; 42. stabilizing electric push rod; 421. connecting hole; 43. closing plug; 431. closing column; 432. compression spring; 433. closing ring; 44. service leveling screw; 441. service leveling knob; 45. service leveling plug. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0032] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0033] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "mounted / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] Example, see Figures 1 to 8 A drone battery pack includes a soft-pack battery pack 1 and a leveling simulation platform 2 installed on the drone. The soft-pack battery pack 1 is assembled from a plurality of soft-pack lithium batteries 11. The leveling simulation platform 2 is provided with a leveling simulation component to provide a horizontal placement environment for the soft-pack battery pack 1. The soft-pack battery pack 1 is provided with a leveling unit, which is composed of an assembly leveling component and a service leveling component. The assembly leveling component is used to level the soft-pack lithium battery 11 during assembly, and the service leveling component is used to level the soft-pack battery pack 1 when it is in service on the drone.

[0035] It should be noted that: in the present invention, a plurality of soft-pack lithium batteries 11 are installed in the installation limit frame 3 and are limited. Then, after loading is completed, the welding assembly operation of the soft-pack lithium battery 11 is completed by welding the wire row to the corresponding part of the soft-pack lithium battery 11. The assembly process is a common assembly method of the existing soft-pack battery pack 1, which is a prior art and will not be described in detail later.

[0036] like Figure 1 As shown, the leveling simulation assembly includes a balance board 21 arranged on the top of the leveling simulation platform 2, a battery placement slot is arranged on the top of the balance board 21 to provide a horizontal placement platform for the soft-pack battery pack 1, the bottom of the balance board 21 is movably connected to the top of the leveling simulation platform 2 through a spherical connecting column 211, and a pressure sensor 22 is arranged on the top of the leveling simulation platform 2 at the bottom corner of the balance board 21, and a plurality of pressure sensors 22 are arranged to judge the assembly balance state and service balance state of the soft-pack battery pack 1;

[0037] It should be noted that the balance board 21 remains horizontal as a whole, and only has a tendency to move, but does not undergo a large displacement that affects the overall horizontal state. That is, the balance board 21 serves as a horizontal simulation placement base, which can provide a horizontal placement platform for the soft-pack battery pack 1 during the assembly process, and can also provide a horizontal placement platform for the soft-pack battery pack 1 after it is fully assembled.

[0038] Furthermore, the balance board 21 is movably connected to the simulation installation limiting plate 23 through the limiting block 212 , and a limiting sliding plate 231 fixed by bolts is fixedly installed at the bottom of the simulation installation limiting plate 23 .

[0039] It should be noted that the cross section of the limit block 212 is set to be in a "concave" shape, forming a limit frame corresponding to the battery placement slot, which can slide the soft-pack battery pack 1 horizontally into the battery placement slot, and limit the top of the soft-pack battery pack 1 through the simulated installation limit plate 23 fixed on the top, so that when the soft-pack battery pack 1 is in service, the stabilizing electric push rod 42 moves up and squeezes the bottom of the simulated installation limit plate 23 to stabilize the soft-pack battery pack 1;

[0040] The further advantage of adopting the above method is that by simulating the actual installation position of the drone, the balance state of the soft pack battery pack 1 during assembly and service can be judged, avoiding direct installation on the simulated drone, and it is impossible to know whether the simulated drone sideways flight is caused by imbalance of the battery pack or imbalance of other parts;

[0041] During assembly, each pack of soft-pack lithium batteries 11 is balanced and calibrated, so that after the soft-pack battery pack 1 is fully assembled, the balance adjustment during service after assembly can be completed only by fine-tuning the mass distribution of the soft-pack battery pack 1. That is, after assembly, the mass of the wire row will be increased after the wire row is connected to the corresponding part of the soft-pack battery pack 1, which affects the balance of the soft-pack battery pack 1 and further affects the overall flight balance of the UAV.

[0042] Based on the above, the wire array is divided into a main power supply line and a balancing head for each pack of soft-pack lithium batteries 11, which is a common wire setting technology on existing lithium battery packs and will not be described in detail in the following.

[0043] Based on the above, the assembly balance state is the mass distribution state of the soft-pack battery pack 1 when it is placed horizontally before assembly, and the service balance state is the mass distribution state of the soft-pack battery pack 1 when it is placed horizontally after assembly. In the judgment process in these two states, the pressure sensor 22 can sense the downward pressure of the soft-pack battery pack 1 on the balance plate 21 on the balance plate 21. When the downward pressure sensed by multiple pressure sensors 22 is unbalanced, it is divided into an assembly imbalance state of the soft-pack battery pack 1 and a service installation imbalance state, and the pressure sensor 22 cooperates with the assembly leveling component and the service leveling component to level the imbalance state of the soft-pack battery pack 1.

[0044] like Figure 3 and Figure 4As shown, the assembly leveling component includes an installation limit frame 3 arranged on the outer surface of the soft-pack lithium battery 11, and an assembly isolation box 31 arranged equidistantly and linearly is arranged in the installation limit frame 3, a heat-conducting column 32 is fixed in the assembly isolation box 31, a heat-conducting sheet 321 is fixed on the side of the heat-conducting column 32 away from the assembly isolation box 31, and there are multiple heat-conducting columns 32, which are symmetrically distributed on the assembly isolation box 31, and the assembly isolation box 31 is wrapped with an isolation pad 33, so that the isolation pad 33 can be supported by the cooperation of the heat-conducting sheet 321 and the heat-conducting column 32 to form a supporting skeleton, and the heat dissipation effect of the isolation pad 33 is improved, so as to achieve the effect of protecting the soft-pack lithium battery 11.

[0045] It should be noted that: when the soft-pack battery group 1 is assembled by each pack of soft-pack lithium batteries 11, each pack of soft-pack lithium batteries 11 is placed in the installation limit frame 3, and the soft-pack battery group 1 in the assembly process is placed in the battery placement slot of the leveling simulation table 2, so that the soft-pack battery group 1 is kept in a horizontal and balanced state, so that when the subsequent liquid low-temperature curing glue is cured after cooling, the soft-pack battery group 1 in the assembly process can still maintain a balanced state, and when the subsequent soft-pack lithium batteries 11 are assembled, they are processed in sequence according to the above-mentioned balancing processing method to ensure that the soft-pack battery group 1 is still in a balanced state after adding each soft-pack lithium battery 11 during the assembly process.

[0046] Furthermore, a rotating assembly leveling pressing piece 34 is slidably connected in the installation limit frame 3, and the sliding horizontal plane height of the assembly leveling pressing piece 34 is lower than the height of the upper surface of the isolation pad 33. When the assembly leveling pressing piece 34 slides into the installation limit frame 3, it will press down the top of the isolation pad 33 here, and drive the liquid in the assembly isolation box 31 to the rest, so as to achieve assembly leveling;

[0047] Based on the above, when a single soft-pack lithium battery 11 of the soft-pack battery pack 1 is unbalanced in assembly, the assembly leveling pressure piece 34 whose weight can be ignored is slid inward, that is, when the pressure sensor 22 feels a large pressure, the sliding hole opened at the corresponding height of the installation limit frame 3, and the assembly leveling pressure piece 34 sliding inward can drive the low-temperature curing glue at this corner to the rest of the parts, and when the pressure sensors 22 arranged at the four corners at the bottom of the balance plate 21 feel the same pressure, it is judged that the soft-pack battery pack 1 is in a balanced state at this time, and the above-mentioned leveling processing method is sequentially processed during the subsequent assembly of the soft-pack lithium battery 11 to ensure that the soft-pack battery pack 1 is still in a balanced state after adding each soft-pack lithium battery 11 during the assembly process, and the self-balancing adjustment process of the soft-pack battery pack 1 when each soft-pack lithium battery 11 is assembled is completed.

[0048] Furthermore, a wiring spacer for assembling adjacent soft-pack lithium batteries 11 is provided in the assembly isolation box 31, and a unidirectional conductive injection hole 311 is opened on the assembly isolation box 31. Low-temperature curing glue is injected into the isolation pad 33 through the injection hole 311. The low-temperature curing glue adopts low-temperature curing epoxy resin. A one-way valve is provided in the injection hole 311 for unidirectional delivery of the low-temperature curing glue.

[0049] It should be noted that: after the soft-pack lithium battery 11 is placed in the assembly isolation box 31, the low-temperature curing glue is injected into the isolation pad 33 through the injection hole 311, so that when the soft-pack lithium battery 11 is placed horizontally, the surface of the soft-pack lithium battery 11 that has slightly deformed its surface during transportation or storage can be adhered through the fluidity of the liquid low-temperature curing glue, and cured in a horizontal state, so as to facilitate the detection of the balance state of the soft-pack battery group 1 and level it to make it in a balanced state;

[0050] Based on the above, the outer shell of the assembly isolation box 31 and the isolation pad 33 are made of soft materials, which can be closely attached to the surface of the soft-pack lithium battery 11 as the low-temperature curing glue flows. The injection volume is determined by the size of the assembly isolation box 31 selected by the specification of the soft-pack battery pack 1, and the injection volume in the assembly isolation box 31 in the same soft-pack battery pack 1 is consistent. At the same time, during injection molding, it is necessary to ensure that there is no air in the injection assembly isolation box 31. This is an existing liquid air-free injection technology and will not be described in detail in the subsequent description.

[0051] Further based on the above, the medium and low temperature curing glue adopts but is not limited to low temperature curing epoxy resin material, and other liquid glue materials that can be cured at low temperature can also be used as fillers in the isolation pad 33.

[0052] like Figure 5 , Figure 6 and Figure 8 As shown, the service leveling component includes a service balancing bracket 4 arranged outside the soft-pack battery pack 1, a leveling cylinder 41 is arranged in the service balancing bracket 4, a stabilizing electric push rod 42 is arranged in the leveling cylinder 41, a closing plug 43 is arranged at the push rod part of the stabilizing electric push rod 42, a service leveling plug 45 is sealingly and slidably connected to the bottom of the leveling cylinder 41, and a service leveling screw 44 is threadedly connected to the bottom of the service leveling plug 45, and the service leveling screw 44 is rotated by the service leveling knob 441 to drive the service leveling plug 45 to rise and fall;

[0053] It should be noted that: when the soft-pack battery pack 1 is unbalanced before being installed in service, the service leveling knob 441 at the corresponding position is rotated so that the service leveling plug 45 corresponding to the place where the pressure sensor 22 senses a larger pressure slides upward, and the liquid here flows into the remaining leveling cylinders 41 until the pressures felt by the pressure sensors 22 arranged at the four corners at the bottom of the balance plate 21 are the same, and it is determined that the soft-pack battery pack 1 is in a balanced state at this time, thereby completing the self-balancing adjustment process of the soft-pack battery pack 1 during assembly and service.

[0054] Furthermore, a plurality of leveling cylinders 41 are provided, the plurality of leveling cylinders 41 are interconnected, and ether alcohol solution is contained in the leveling cylinders 41 , the connecting parts of the leveling cylinders 41 are provided at the corners of the service balancing bracket 4 , and the connecting parts of the leveling cylinders 41 are sealed by closing plugs 43 .

[0055] It should be noted that: during the flight of the drone, the soft-pack battery pack 1 will have inertia, causing slight squeezing and deformation on the edge, and when the main power line in the line row is inserted into the drone, the overall quality of the soft-pack battery pack 1 will deviate due to the placement of the line row. Therefore, it is necessary to perform a leveling operation every time the soft-pack battery pack 1 is inserted, so as not to affect the overall balance of the drone during flight;

[0056] Furthermore, a connecting hole 421 is opened in the push rod portion of the stabilizing electric push rod 42 located above the closing plug 43, and a closing column 431 adapted to the connecting portion of the leveling cylinder 41 is provided on the outside of the closing plug 43, and the closing column 431 is connected to a closing ring 433 through a compression spring 432.

[0057] It should be noted that: when the soft-pack battery pack 1 is leveled during service, the leveling cylinders 41 arranged on the side thereof are interconnected, so that the leveling solution in the leveling cylinders 41 on the soft-pack battery pack 1 that needs to be balanced flows under the influence of gravity, so that the soft-pack battery pack 1 is in a horizontal state after the flow of the leveling solution ends, thereby ensuring the balance of the soft-pack battery pack 1, and after the soft-pack battery pack 1 maintains balance, the stabilizing electric push rod 42 is started, and the push rod is moved up to the upper limit plate of the drone, that is, the bottom of the simulated installation limit plate 23 in the present invention, to stabilize the position of the soft-pack battery pack 1, thereby improving the installation stability of the soft-pack battery pack 1;

[0058] Based on the above, when the push rod portion of the stabilizing electric push rod 42 moves upward, it will also drive the closing plug 43 to move upward, closing the connecting parts between the leveling cylinders 41, so that the mass of the solution contained in each leveling cylinder 41 remains constant when the soft-pack battery pack 1 is in service;

[0059] The further benefit of adopting the above method is that the leveling solution in the leveling cylinder 41 adopts but is not limited to ether alcohol solution, which can be in liquid state at room temperature and in gas state when heated to above 34 degrees. This temperature is provided by preheating before the soft pack battery pack 1 supplies power, and can also be provided by the heat energy released during the discharge process of the soft pack battery pack 1 during the flight of the soft pack battery pack 1, so as to ensure that the leveling solution inside the leveling cylinder 41 remains in gas state when the soft pack battery pack 1 supplies power, and is evenly distributed in each closed leveling cylinder 41, so that the inertia of the leveling solution will not cause the UAV to malfunction during the flight speed change of the UAV, resulting in the occurrence of a bombing;

[0060] Based on the above, when the leveling solution remains in a gaseous state, the air pressure in the leveling cylinder 41 will increase, squeezing the closing ring 433 so that it fits tightly with the connecting part of the leveling cylinder 41, thereby achieving the effect of enhancing the sealing performance of the connecting part of the closing plug 43, ensuring that the gaseous leveling solution will not flow into the remaining leveling cylinders 41 and destroy the balance state of the soft-pack battery pack 1.

[0061] Working principle:

[0062] In the present invention, in order to avoid affecting the balance state of the drone during flight, the soft-pack battery pack 1 is leveled when the soft-pack lithium battery 11 inside the soft-pack battery pack 1 is assembled and in service;

[0063] Based on the above, the balance maintenance operation of the soft-pack lithium battery 11 assembly is as follows: when the soft-pack battery group 1 is assembled through each pack of soft-pack lithium batteries 11, each pack of soft-pack lithium batteries 11 is placed in the installation limit frame 3, and the soft-pack battery group 1 in the assembly process is placed in the battery placement slot of the leveling simulation table 2, so that the soft-pack battery group 1 is kept in a horizontal state, so that after the subsequent low-temperature curing glue is cured, the soft-pack battery group 1 in the assembly process can maintain a balanced state, and in the subsequent soft-pack lithium battery 11 assembly, it is processed in accordance with the above-mentioned balance processing method in turn to ensure that the soft-pack battery group 1 is still in a balanced state after adding each soft-pack lithium battery 11 during the assembly process;

[0064] Based on the above, when the soft-pack battery pack 1 is unbalanced in assembly, the assembly leveling pressure piece 34 whose weight can be ignored can be slid inward, that is, when the pressure sensor 22 feels a large pressure, the assembly leveling pressure piece 34 can be slid into the installation limit frame 3 at this time, so that the low-temperature curing glue at this corner can be driven to the rest of the parts, and when the pressure sensors 22 arranged at the four corners at the bottom of the balance plate 21 feel the same pressure, it is judged that the soft-pack battery pack 1 is in a balanced state at this time, and the self-balancing adjustment process of the soft-pack battery pack 1 when each soft-pack lithium battery 11 is assembled is completed.

[0065] Based on the above, the balance maintenance operation of the soft-pack battery pack 1 during service is as follows: when the soft-pack battery pack 1 during service is leveled, the leveling cylinders 41 arranged on the side thereof are interconnected, so that the leveling solution in the leveling cylinders 41 flows normally, and the balance state of the soft-pack battery pack 1 is ensured. After the soft-pack battery pack 1 is balanced, the stabilizing electric push rod 42 is started, and the push rod is moved up to the upper limit plate of the drone, that is, the bottom of the simulated installation limit plate 23 in the present invention, to stabilize the position of the soft-pack battery pack 1, thereby improving the installation stability of the soft-pack battery pack 1;

[0066] Based on the above, when the push rod part of the stabilizing electric push rod 42 moves upward, it will also drive the closing plug 43 to move upward, closing the connecting part of the leveling cylinder 41, so that the quality of the solution in each leveling cylinder 41 remains constant, ensuring that when the soft pack battery pack 1 is in service, its various parts remain balanced, affecting the balance state of the drone during flight;

[0067] Based on the above, when the soft-pack battery pack 1 is unbalanced before service installation, the service leveling knob 441 at the corresponding position is rotated so that the service leveling plug 45 corresponding to the place where the pressure sensor 22 senses a larger pressure slides upward, and the liquid here flows into the remaining leveling cylinders 41 until the pressures felt by the pressure sensors 22 arranged at the four corners at the bottom of the balance plate 21 are the same, and it is determined that the soft-pack battery pack 1 is in a balanced state at this time, thereby completing the self-balancing adjustment process of the soft-pack battery pack 1 during assembly and service.

[0068] Further based on the above, the leveling solution in the leveling cylinder 41 uses but is not limited to ether alcohol solution, which can be in liquid state at room temperature and in gaseous state when heated to above thirty-four degrees. This temperature is provided in the form of preheating before the soft-pack battery pack 1 supplies power, and can also be provided by the heat energy released during the discharge of the soft-pack battery pack 1 during the flight of the soft-pack battery pack 1. This ensures that when the soft-pack battery pack 1 supplies power, the leveling solution inside the leveling cylinder 41 remains in gaseous state and is evenly distributed in each closed leveling cylinder 41. During the speed change process of the drone, the inertia of the leveling solution will not cause operational failure of the drone, resulting in an explosion.

[0069] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A drone battery pack, comprising a soft-pack battery pack (1) mounted on the drone and a leveling simulation platform (2), wherein the soft-pack battery pack (1) is assembled from a plurality of soft-pack lithium batteries (11), and the leveling simulation platform (2) is provided with a leveling simulation component to provide a horizontal placement environment for the soft-pack battery pack (1), characterized in that: The soft-pack battery pack (1) is provided with a leveling unit, the leveling unit consisting of an assembly leveling component and a service leveling component, the assembly leveling component is used to level the soft-pack lithium battery (11) when it is assembled, and the service leveling component is used to level the soft-pack battery pack (1) when it is in service on the drone; The leveling simulation component comprises a balance board (21) arranged on the top of the leveling simulation platform (2); a battery placement slot is arranged on the top of the balance board (21) to provide a horizontal placement platform for the soft-pack battery pack (1); the bottom of the balance board (21) is movably connected to the top of the leveling simulation platform (2) via a spherical connection column (211); a pressure sensor (22) is arranged on the top of the leveling simulation platform (2) at a bottom corner of the balance board (21); and a plurality of pressure sensors (22) are arranged to judge the assembly balance state and service balance state of the soft-pack battery pack (1); The assembly leveling component comprises an installation limit frame (3) arranged on the outer surface of the soft-pack lithium battery (11), and an assembly isolation box (31) arranged equidistantly and linearly is arranged in the installation limit frame (3), a heat-conducting column (32) is fixed in the assembly isolation box (31), and an isolation pad (33) is wrapped outside the assembly isolation box (31), and a rotationally distributed assembly leveling pressing piece (34) is slidably connected in the installation limit frame (3), and the sliding horizontal plane height of the assembly leveling pressing piece (34) is lower than the height of the upper surface of the isolation pad (33), and when the assembly leveling pressing piece (34) slides into the installation limit frame (3), it presses down the top of the isolation pad (33) there, and drives the liquid in the assembly isolation box (31) to other places, thereby achieving assembly leveling; The service leveling component comprises a service balancing bracket (4) arranged outside the soft-pack battery pack (1), a leveling cylinder (41) being arranged inside the service balancing bracket (4), a stabilizing electric push rod (42) being arranged inside the leveling cylinder (41), and a closing plug (43) being arranged at the push rod portion of the stabilizing electric push rod (42).

2. The drone battery pack according to claim 1, characterized in that: The balancing plate (21) is movably connected to a simulated installation limit plate (23) via a limit block (212), and a limit slide plate (231) fixed by bolts is fixedly mounted on the bottom of the simulated installation limit plate (23).

3. The drone battery pack according to claim 1, characterized in that: A wiring spacer for assembling adjacent soft-pack lithium batteries (11) is provided in the assembly isolation box (31), and a unidirectionally conductive injection hole (311) is provided on the assembly isolation box (31).

4. The drone battery pack according to claim 1, characterized in that: A heat conducting sheet (321) is fixed to the side of the heat conducting column (32) away from the assembly isolation box (31), and a plurality of heat conducting columns (32) are provided and symmetrically distributed on the assembly isolation box (31).

5. The drone battery pack according to claim 3, characterized in that: Low-temperature curing glue is injected into the isolation pad (33) through the injection hole (311), and the low-temperature curing glue is made of low-temperature curing epoxy resin.

6. The drone battery pack according to claim 1, characterized in that: A plurality of the leveling cylinders (41) are provided, the plurality of the leveling cylinders (41) are interconnected, and ether alcohol solution is contained in the leveling cylinders (41).

7. The drone battery pack according to claim 1, characterized in that: The connecting part of the leveling cylinder (41) is arranged at a corner of the service balancing bracket (4), and the connecting part of the leveling cylinder (41) is sealed by a sealing plug (43). The stabilizing electric push rod (42) is provided with a connecting hole (421) at a push rod part located above the sealing plug (43), and a sealing column (431) adapted to the connecting part of the leveling cylinder (41) is arranged on the outside of the sealing plug (43), and the sealing column (431) is connected to a sealing ring (433) via a compression spring (432).

8. The drone battery pack according to claim 1, characterized in that: The bottom of the leveling cylinder (41) is sealingly and slidably connected to a service leveling plug (45), and the bottom of the service leveling plug (45) is threadedly connected to a service leveling screw (44), and the service leveling screw (44) is rotated by a service leveling knob (441) to drive the service leveling plug (45) to rise and fall.

Images