Brushless motor driving starting device for unmanned aerial vehicle

CN224882294UActive Publication Date: 2026-10-23NANJING BIFUDI POWER TECH CO LTD
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Patent Information

Application Number
CN202522457778.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-19
Publication Date
2026-10-23
Estimated Expiration
2035-11-19

AI Technical Summary

Technical Problem

[0004]针对现有技术的不足,本实用新型提供了一种无人机用无刷电机驱动式启动装置,以解决上述背景技术中提出的启动装置整体重量偏大,难以满足无人机对轻量化部件的核心需求,操作流程繁琐,不仅增加了安装难度,还延长了装配时间的问题

Benefits of technology

[0016]该无人机用无刷电机驱动式启动装置,加设的第一开槽、第二开槽以及第三开槽,能够在保障各结构基础功能与结构稳定性的前提下,减少对应部件的材料用量,进而有效减轻启动装置整体重量,契合无人机对轻量化部件的使用需求;安装耳与安装架能够方便将启动装置安装于无人机的底部与侧壁表面,降低安装操作复杂度;同时,无刷电机、蓄电池与驱动控制模块集成于启动装置外壳内部,既减少了外部冗余连接部件以进一步辅助减轻整体重量,又使各部件安装位置相对集中,避免分散安装带来的操作不便,整体实现启动装置减轻重量与方便安装的效果。

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Abstract

The utility model relates to starting device technical field, and disclose a kind of brushless motor drive starting device for unmanned plane, including starting device shell, cover, mounting bracket and brushless motor etc..First slot is evenly laid on the surface of starting device shell, cover is located on the upper surface of shell, second slot and mounting lug are on it, mounting bracket is located on the surface of shell and has third slot.Brushless motor is located inside shell, transmission shaft is installed on output end, battery and drive control module are also installed in shell, and both are electrically connected with brushless motor.The slot design of the device guarantees function and structural stability, reduces material usage, reduces overall weight, and meets the lightweight needs of unmanned aerial vehicles;Mounting lug and mounting bracket facilitate the installation of the device on the bottom and sidewall of the unmanned aerial vehicle, reducing installation complexity;Each component is integrated inside the shell, reducing external redundant connection components, achieving the effect of reducing weight and facilitating installation.
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Description

Technical Field

[0001] This utility model relates to the field of starting device technology, specifically a brushless motor driven starting device for unmanned aerial vehicles. Background Technology

[0002] Drone technology has been widely applied in various fields such as aerial photography, agricultural plant protection, power line inspection, and logistics transportation. The stable start-up of its power system is one of the core prerequisites for ensuring the smooth execution of drone missions. As a key component of the power system, the drone's starting device must be compatible with the drone's overall structure, payload requirements, and operational performance. Its structural design, weight control, and ease of installation directly affect the drone's endurance, flight stability, and maintenance efficiency. Therefore, as drone technology continues to iterate, increasingly stringent requirements are being placed on the comprehensive performance of the starting device.

[0003] Existing drone launchers still have many issues that need improvement in practical applications. Regarding weight control, some launchers, in order to ensure structural stability, often rely excessively on increasing material usage without optimizing the component structure. This results in an overall excessive weight for the launcher, making it difficult to meet the drone's core requirement for lightweight components, which may indirectly affect the drone's payload and flight time. In terms of installation, existing launchers lack a convenient installation structure specifically adapted to the drone's body. Assembling them onto the bottom or side of the drone is cumbersome, increasing both installation difficulty and time. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a brushless motor-driven starting device for drones, which solves the problems mentioned in the background art, such as the overall weight of the starting device being too large, making it difficult to meet the core requirements of drones for lightweight components, and the cumbersome operation process, which not only increases the difficulty of installation but also prolongs the assembly time.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a brushless motor-driven starting device for unmanned aerial vehicles, comprising:

[0006] A starting device housing, wherein the surface of the starting device housing is uniformly provided with first slots;

[0007] A cover plate is disposed on the upper surface of the housing of the starting device. The surface of the cover plate is evenly provided with a second slot, and mounting ears are installed on both sides of the surface of the cover plate.

[0008] A mounting bracket is disposed on the surface of the housing of the starting device, and the surface of the mounting bracket is evenly provided with third slots;

[0009] A brushless motor is installed inside the housing of the starting device. A drive shaft is installed at the output end of the brushless motor. A battery is installed inside the housing of the starting device. A drive control module is also installed inside the housing of the starting device. Both the battery and the drive control module are electrically connected to the brushless motor.

[0010] Preferably, a base is installed at the bottom of the starting device housing, the surface of the base is evenly provided with a fourth slot, a mounting seat is installed in the middle of the base, and the brushless motor is installed on the upper surface of the mounting seat. The design of the fourth slot helps to reduce the weight of the base, and the shape and size of the mounting seat are matched with the brushless motor, which can provide stable support for the brushless motor.

[0011] Preferably, mounting blocks are installed at all four corners of the mounting frame, and threaded grooves are formed on the surface of each mounting block to ensure a reliable connection between the mounting frame and the drone.

[0012] Preferably, the upper surface of the cover plate is evenly provided with threaded rods, and the connecting ends of the threaded rods are screwed onto the surface of the starting device housing. The threaded rods can be removed to disassemble the cover plate, thereby facilitating the maintenance of the components inside the starting device housing.

[0013] Preferably, a mounting sleeve is installed in the middle of the upper surface of the cover plate, and a bearing is installed inside the mounting sleeve, which enables the drive shaft to rotate stably.

[0014] Preferably, a bushing is mounted on the surface of the drive shaft, and the bushing is in close contact with the inner ring of the bearing, which can reduce the friction between the drive shaft and the inner ring of the bearing.

[0015] Compared with the prior art, this utility model provides a brushless motor driven starting device for drones, which has the following advantages:

[0016] This drone uses a brushless motor-driven starting device. The added first, second, and third slots reduce the material usage of corresponding components while ensuring the basic functions and structural stability of each structure. This effectively reduces the overall weight of the starting device, meeting the drone's need for lightweight components. The mounting ears and mounting brackets facilitate the installation of the starting device on the bottom and side surfaces of the drone, reducing the complexity of the installation operation. At the same time, the brushless motor, battery, and drive control module are integrated inside the starting device's housing. This reduces redundant external connecting components to further reduce the overall weight and allows the installation positions of each component to be relatively concentrated, avoiding the inconvenience caused by scattered installation. Overall, the starting device achieves the effect of reducing weight and facilitating installation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0019] Figure 3 This is a schematic diagram of the structure of the mounting sleeve of this utility model.

[0020] In the diagram: 1. Starting device housing; 2. First slot; 3. Cover plate; 4. Second slot; 5. Mounting ear; 6. Mounting bracket; 7. Third slot; 8. Mounting block; 9. Brushless motor; 10. Drive shaft; 11. Battery; 12. Drive control module; 13. Base; 14. Fourth slot; 15. Mounting seat; 16. Threaded rod; 17. Mounting sleeve; 18. Bearing; 19. Bushing. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] This utility model provides a technical solution: a brushless motor-driven starter for unmanned aerial vehicles (UAVs). Please refer to [link / reference needed]. Figure 1 It includes a starting device housing 1, and the surface of the starting device housing 1 is evenly provided with a first groove 2;

[0023] Cover plate 3 is provided on the upper surface of the housing 1 of the starting device. The surface of cover plate 3 is evenly provided with second slots 4, and mounting ears 5 are installed on both sides of the surface of cover plate 3.

[0024] Mounting bracket 6 is disposed on the surface of the housing 1 of the starting device, and the surface of mounting bracket 6 is evenly provided with third slots 7;

[0025] Please see Figure 2 The brushless motor 9 is located inside the starting device housing 1. Please refer to [link / reference]. Figure 1 The output end of the brushless motor 9 is equipped with a drive shaft 10. Please refer to [link / reference]. Figure 2 The starting device housing 1 houses a battery 11 and a drive control module 12. Both the battery 11 and the drive control module 12 are electrically connected to the brushless motor 9.

[0026] The drive control module 12 includes a modular PCB substrate, on which a core control unit, a brushless motor 9 commutation drive unit, an electromagnetic push rod drive unit, a signal detection unit, and a power management unit are integrated. This is a mature solution for the existing brushless motor 9 starting device, and will not be described in detail here.

[0027] The uniformly distributed first slot 2 on the surface of the starting device housing 1, the uniformly distributed second slot 4 on the surface of the cover plate 3, and the uniformly distributed third slot 7 on the surface of the mounting bracket 6 can reduce the material usage of corresponding components while ensuring the basic functions and structural stability of each structure, thereby effectively reducing the overall weight of the starting device and meeting the UAV's requirements for lightweight components. The mounting ears 5 installed on both sides of the cover plate 3 provide clear and convenient connection points for the assembly of the cover plate 3 and the starting device housing 1, facilitating the quick assembly and disassembly of the cover plate 3. The mounting bracket 6 can easily position and install the entire starting device to the corresponding assembly position on the UAV, reducing the complexity of the installation operation. At the same time, the brushless motor 9, the battery 11, and the drive control module 12 are integrated inside the starting device housing 1, and the structural layout in which the battery 11 and the drive control module 12 are electrically connected to the brushless motor 9 not only reduces the number of external redundant connecting components to further assist in reducing the overall weight, but also makes the installation positions of each component relatively concentrated, avoiding the inconvenience caused by scattered installation, thus achieving the effect of reducing the weight of the starting device and facilitating installation.

[0028] A base 13 is installed at the bottom of the starting device housing 1. The surface of the base 13 is evenly provided with fourth slots 14. A mounting seat 15 is installed in the middle of the base 13. The brushless motor 9 is installed on the upper surface of the mounting seat 15. The design of the fourth slot 14 helps to reduce the weight of the base 13. The shape and size of the mounting seat 15 are matched with the brushless motor 9, which can provide a stable support for the brushless motor 9.

[0029] Mounting blocks 8 are installed at the four corners of the mounting frame 6. The surface of each mounting block 8 is provided with threaded grooves to ensure a reliable connection between the mounting frame 6 and the drone.

[0030] The upper surface of the cover plate 3 is evenly provided with threaded rods 16. The connecting ends of the threaded rods 16 are screwed onto the surface of the starter housing 1. The cover plate 3 can be disassembled by removing the threaded rods 16, which makes it convenient to maintain the internal components of the starter housing 1.

[0031] A mounting sleeve 17 is installed in the middle of the upper surface of cover plate 3. Please refer to [link / reference]. Figure 3 The mounting sleeve 17 has a bearing 18 installed inside, which enables the drive shaft 10 to rotate stably.

[0032] A bushing 19 is mounted on the surface of the drive shaft 10. The bushing 19 is in close contact with the inner ring of the bearing 18, which can reduce the friction between the drive shaft 10 and the inner ring of the bearing 18.

[0033] In operation, this solution achieves the following: the mounting bracket 6 is reliably connected to the corresponding assembly position of the UAV via the threaded grooves on the four corner mounting blocks 8, thus realizing the initial positioning and installation of the starting device; the first groove 2 on the surface of the starting device housing 1, the second groove 4 on the surface of the cover plate 3, the third groove 7 on the surface of the mounting bracket 6, and the fourth groove 14 on the surface of the base 13 reduce the amount of material used and lighten the overall weight while ensuring the basic functions and stability of each structure; the brushless motor 9 is mounted on the mounting seat 15 in the middle of the base 13, and the battery 11 and the drive control module 12 are integrated inside the starting device housing 1 and are both electrically connected to the brushless motor 9, reducing redundant external connecting parts and concentrating the installation positions of the parts; the cover plate 3 is connected to the starting device housing 1 via the threaded rod 16 on its upper surface, facilitating disassembly and assembly for maintenance of internal parts; the drive shaft 10 rotates stably via the bearing 18 in the mounting sleeve 17 in the middle of the upper surface of the cover plate 3, and the bushing 19 on the surface of the drive shaft 10 is in close contact with the inner ring of the bearing 18 to reduce friction, thus achieving the effect of reducing the weight of the starting device, facilitating installation, and ensuring stable operation.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A brushless motor-driven starting device for unmanned aerial vehicles (UAVs), characterized in that, include: The starting device housing (1) has a first slot (2) evenly distributed on its surface; A cover plate (3) is provided on the upper surface of the housing (1) of the starting device. The surface of the cover plate (3) is uniformly provided with a second slot (4). Mounting ears (5) are installed on both sides of the surface of the cover plate (3). Mounting bracket (6) is provided on the surface of the housing (1) of the starting device, and the surface of the mounting bracket (6) is evenly provided with third slots (7); A brushless motor (9) is installed inside the housing (1) of the starting device. A drive shaft (10) is installed at the output end of the brushless motor (9). A storage battery (11) is installed inside the housing (1) of the starting device. A drive control module (12) is installed inside the housing (1) of the starting device. Both the storage battery (11) and the drive control module (12) are electrically connected to the brushless motor (9).

2. The brushless motor-driven starting device for unmanned aerial vehicles according to claim 1, characterized in that: The bottom of the starting device housing (1) is equipped with a base (13), the surface of the base (13) is evenly provided with a fourth slot (14), the middle of the base (13) is equipped with a mounting seat (15), and the brushless motor (9) is mounted on the upper surface of the mounting seat (15).

3. The brushless motor-driven starting device for unmanned aerial vehicles according to claim 1, characterized in that: Mounting blocks (8) are installed at the four corners of the surface of the mounting bracket (6), and threaded grooves are opened on the surface of the mounting blocks (8).

4. The brushless motor-driven starting device for unmanned aerial vehicles according to claim 1, characterized in that: The upper surface of the cover plate (3) is evenly provided with threaded rods (16), and the connecting ends of the threaded rods (16) are all screwed onto the surface of the starting device housing (1).

5. The brushless motor-driven starting device for unmanned aerial vehicles according to claim 1, characterized in that: An installation sleeve (17) is installed in the middle of the upper surface of the cover plate (3), and a bearing (18) is installed inside the installation sleeve (17).

6. The brushless motor-driven starting device for unmanned aerial vehicles according to claim 5, characterized in that: A bushing (19) is mounted on the surface of the drive shaft (10), and the bushing (19) is in close contact with the inner ring of the bearing (18).