Drone spraying pesticide motor

CN224709462UActive Publication Date: 2026-09-01CHANGZHOU WUQI AUTOELECTRIC CO LTD
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Patent Information

Application Number
CN202522003530.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-17
Publication Date
2026-09-01
Estimated Expiration
2035-09-17

AI Technical Summary

Technical Problem

[0003]本实用新型的目的在于至少解决现有技术中存在的技术问题之一,提供无人机喷农药电机,解决了在电流传输环节,部分设备的相线连接结构设计不合理,相线压板与相线座的固定方式缺乏可靠紧固性,易因设备振动导致连接松动,引发接触不良、电流传输中断等问题,甚至产生电火花等安全隐患

Benefits of technology

[0011]有益效果:设备各结构设计及冷却装置出线设计具备多重有益效果:相线压板与螺钉二确保电流稳定传输,轴承保障轴高速平稳运转,骨架油封与密封圈三、二、一强化密封以阻断异物侵入、防止润滑油泄漏,后盖通过螺钉一与机壳牢固连接避免振动移位,尼龙骨架对定子总成等核心部件精准定位以维持稳定电磁作用,而冷却装置出线方便安装的设计,无需改造机壳现有结构即可快速布设线缆、减少部件干涉,既降低安装难度、便于后续检修,又能减少线缆损坏风险,保障冷却装置稳定运行,进而维持机壳内部适宜温度,最终实现设备整体持续高效运转并延长使用寿命。

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Patent Text Reader

Abstract

This utility model discloses a motor for spraying pesticides on a drone, comprising: a housing; two nylon skeletons disposed on the inner surface of the housing; a stator core disposed on the inner surface of the housing; a rotor core disposed on the inner surface of the housing; magnets disposed on the inner surface of the housing; bearings disposed on the inner surface of the housing; a rear cover disposed on the housing; a phase wire seat disposed on the rear cover; a phase wire pressure plate disposed on the phase wire seat; and a stator assembly disposed on the inner surface of the housing. Through the above structure, the design facilitates the installation of the cooling device wiring, allowing for rapid cable laying without modifying the existing housing structure, reducing component interference, lowering installation difficulty, facilitating subsequent maintenance, reducing the risk of cable damage, ensuring stable operation of the cooling device, maintaining a suitable internal temperature of the housing, and ultimately achieving continuous and efficient operation of the entire equipment and extending its service life.
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Description

Technical Field

[0001] This utility model relates to the field of motor technology, and in particular to a motor for spraying pesticides on drones. Background Technology

[0002] In the existing technologies of similar mechanical products such as motors and drive equipment, there are often many pain points in the operational stability of core components, structural sealing, and ease of installation of auxiliary devices, which restrict the overall performance and service life of the equipment. In the current transmission link, the phase line connection structure of some equipment is not reasonably designed, and the fixing method of the phase line pressure plate and the phase line seat lacks reliable fastening. It is easy for the connection to loosen due to equipment vibration, which can lead to problems such as poor contact and interruption of current transmission, and even generate safety hazards such as electric sparks. In terms of shaft operation, the bearing support structure of existing equipment often ignores the optimization of friction resistance, or the assembly precision of the bearing and the inner surface of the housing is insufficient, which leads to shaking and jamming during shaft operation. This not only reduces the operating efficiency of the equipment, but also aggravates bearing wear and shortens its replacement cycle. Utility Model Content

[0003] The purpose of this utility model is to solve at least one of the technical problems existing in the prior art, and to provide a motor for spraying pesticides on drones. This solves the problem that in the current transmission link, the phase wire connection structure of some equipment is not reasonably designed, and the fixing method of the phase wire pressure plate and the phase wire seat lacks reliable fastening. This can easily lead to loosening of the connection due to equipment vibration, resulting in problems such as poor contact, interruption of current transmission, and even safety hazards such as electric sparks.

[0004] This utility model also provides a motor for spraying pesticides on a drone, comprising: a housing, two nylon skeletons on the inner surface of the housing, a stator core on the inner surface of the housing, a rotor core on the inner surface of the housing, magnets on the inner surface of the housing, bearings on the inner surface of the housing, a rear cover on the housing, a phase wire seat on the rear cover, a phase wire pressure plate on the phase wire seat, and a stator assembly on the inner surface of the housing.

[0005] Preferably, the housing is provided with a skeleton oil seal and a sealing ring.

[0006] Preferably, a second sealing ring is provided on the housing, and the second sealing ring is located above the first sealing ring.

[0007] Preferably, a sealing ring three is provided on the housing, and the sealing ring three is located above the sealing ring two.

[0008] Preferably, both the rear cover and the housing are provided with a threaded hole, and the inner surface of the threaded hole is threaded with a screw.

[0009] Preferably, both the phase wire seat and the phase wire pressure plate are provided with threaded holes, and the inner surface of the threaded holes is threaded with screws.

[0010] Preferably, the housing is provided with a shaft, and the rotatable connection is on the inner surface of the housing.

[0011] Beneficial Effects: The structural design of the equipment and the cable outlet design of the cooling device have multiple beneficial effects: the phase line pressure plate and screw 2 ensure stable current transmission; the bearing ensures smooth high-speed operation of the shaft; the skeleton oil seal and sealing rings 3, 2, and 1 strengthen the seal to prevent foreign object intrusion and lubricating oil leakage; the rear cover is firmly connected to the housing by screw 1 to avoid vibration displacement; the nylon skeleton accurately positions core components such as the stator assembly to maintain stable electromagnetic action; and the design of the cooling device cable outlet facilitates installation, allowing for quick cable laying without modifying the existing housing structure, reducing component interference, reducing installation difficulty, facilitating subsequent maintenance, reducing the risk of cable damage, ensuring stable operation of the cooling device, and thus maintaining a suitable internal temperature of the housing, ultimately achieving continuous and efficient operation of the entire equipment and extending its service life.

[0012] The pesticide spraying motor of this UAV receives external current first through a phase wire socket fixed to the phase wire plate on the rear cover. The phase wire plate is tightly connected to the phase wire socket by screw two, ensuring no loosening or poor contact during current transmission. After the current enters the stator assembly on the inner surface of the housing, the stator assembly generates a rotating magnetic field. This magnetic field interacts with the magnets on the rotor core on the inner surface of the housing, generating electromagnetic torque and driving the rotor core to rotate. During the rotation of the rotor core, the shaft connected to its center rotates synchronously. The shaft is stably supported by bearings on the inner surface of the housing. The bearings effectively reduce the frictional resistance during shaft rotation, ensuring high-speed and stable operation of the shaft. The skeleton oil seal on the housing provides a sealing function, preventing external impurities from entering the housing and avoiding leakage of lubricating oil inside the housing. The sealing rings three, two, and one arranged sequentially from top to bottom on the housing further enhance the sealing performance. The sealing performance of the casing is designed to meet the sealing requirements of different parts, preventing the intrusion of foreign objects such as moisture and dust, and ensuring the normal working environment of internal components. The rear cover is connected to the casing by screws and threaded holes, forming a solid integral structure between the rear cover and the casing, preventing the rear cover from shifting due to vibration during equipment operation. The two nylon skeletons on the inner surface of the casing play a supporting and positioning role, fixing the installation position of components such as the stator assembly and rotor core, preventing the components from shifting due to force during operation, ensuring the precise relative position between the stator and rotor, maintaining stable electromagnetic interaction, and ultimately ensuring the continuous and efficient operation of the entire equipment. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0014] Figure 1 This is a top cross-sectional view of the pesticide spraying motor of the UAV of this utility model.

[0015] Figure 2 This is a front view of the motor for spraying pesticides on a drone, which is part of this utility model.

[0016] Figure 3 This is a top view of the structure of the pesticide spraying motor of the UAV of this utility model.

[0017] Legend:

[0018] 1. Shaft; 2. Frame oil seal; 3. Sealing ring one; 4. Housing; 5. Nylon frame; 6. Stator core; 7. Sealing ring two; 8. Rotor core; 9. Magnet; 10. Bearing; 11. Rear cover; 12. Phase wire seat; 13. Phase wire pressure plate; 14. Screw one; 15. Sealing ring three; 16. Stator assembly; 17. Screw two; 18. Threaded hole one; 19. Threaded hole two. Detailed Implementation

[0019] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0020] Reference Figure 1-3 This utility model embodiment of a drone pesticide spraying motor includes: a housing 4, with two nylon skeletons 5 disposed on the inner surface of the housing 4, a stator core 6 disposed on the inner surface of the housing 4, a rotor core 8 disposed on the inner surface of the housing 4, magnets 9 disposed on the inner surface of the housing 4, bearings 10 disposed on the inner surface of the housing 4, a rear cover 11 disposed on the housing 4, a phase wire seat 12 disposed on the rear cover 11, a phase wire pressure plate 13 disposed on the phase wire seat 12, and a stator assembly 16 disposed on the inner surface of the housing 4.

[0021] Specifically: The external current is first input through the phase wire seat 12 fixed by the phase wire pressure plate 13 on the back cover 11. The phase wire pressure plate 13 is tightly connected to the phase wire seat 12 by screw 17 to ensure that there is no loosening or poor contact during the current transmission process. After the current enters the stator assembly 16 on the inner surface of the housing 4, the stator assembly 16 generates a rotating magnetic field. This magnetic field interacts with the magnet 9 on the rotor core 8 on the inner surface of the housing 4 to generate electromagnetic torque, which drives the rotor core 8 to start rotating. During the rotation of the rotor core 8, the shaft 1 connected to its center rotates synchronously. The shaft 1 is stably supported by the bearing 10 on the inner surface of the housing 4. The bearing 10 effectively reduces the frictional resistance when the shaft 1 rotates, ensuring the high-speed and stable operation of the shaft 1. The skeleton oil seal 2 on the housing plays a sealing role to prevent external impurities from entering the interior of the housing 4 and to avoid leakage of lubricating oil inside the housing 4.

[0022] The housing 4 is equipped with a skeleton oil seal 2, a sealing ring 3, a sealing ring 7, which is located above the sealing ring 3, and a sealing ring 15, which is located above the sealing ring 7. The rear cover 11 and the housing 4 are both equipped with a threaded hole 18, and the inner surface of the threaded hole 18 is threaded with a screw 14. The phase wire seat 12 and the phase wire pressure plate 13 are both equipped with a threaded hole 19, and the inner surface of the threaded hole 19 is threaded with a screw 17. The housing 4 is equipped with a shaft 1, which is rotatably connected to the inner surface of the housing 4.

[0023] Specifically, the sealing rings 15, 7, and 3 are arranged sequentially from top to bottom on the housing 4, further enhancing the sealing performance of the housing 4. They address the sealing needs of different parts, preventing the intrusion of moisture, dust, and other foreign objects, and ensuring the normal working environment of internal components. The rear cover 11 is threadedly connected to the threaded hole 18 on the housing 4 by screw 14, forming a solid integral structure between the rear cover 11 and the housing 4, preventing the rear cover 11 from shifting due to vibration during equipment operation. The two nylon skeletons 5 on the inner surface of the housing 4 serve as supports and positions, fixing the installation positions of components such as the stator assembly 16 and the rotor core 8, preventing the components from shifting due to force during operation, ensuring the precise relative position between the stator and rotor, maintaining stable electromagnetic interaction, and ultimately ensuring the continuous and efficient operation of the entire equipment.

[0024] Working principle: The external current is first input through the phase wire seat 12 fixed by the phase wire pressure plate 13 on the back cover 11. The phase wire pressure plate 13 is tightly connected to the phase wire seat 12 by screw 17 to ensure that there is no looseness or poor contact during the current transmission process. After the current enters the stator assembly 16 on the inner surface of the housing 4, the stator assembly 16 generates a rotating magnetic field. This magnetic field interacts with the magnet 9 on the rotor core 8 on the inner surface of the housing 4 to generate electromagnetic torque, which drives the rotor core 8 to start rotating. During the rotation of the rotor core 8, the shaft 1 connected to its center rotates synchronously. The shaft 1 is stably supported by the bearing 10 on the inner surface of the housing 4. The bearing 10 effectively reduces the frictional resistance when the shaft 1 rotates, ensuring the high-speed and stable operation of the shaft 1. The skeleton oil seal 2 on the housing plays a sealing role to prevent external impurities from entering the interior of the housing 4 and also to avoid the leakage of lubricating oil inside the housing 4.

[0025] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A motor for spraying pesticides on a drone, characterized in that, include: The housing (4) has two nylon skeletons (5) on its inner surface, a stator core (6) on its inner surface, a rotor core (8) on its inner surface, a magnet (9) on its inner surface, a bearing (10) on its inner surface, a rear cover (11) on its inner surface, a phase wire seat (12) on its rear cover (11), a phase wire pressure plate (13) on its phase wire seat (12), and a stator assembly (16) on its inner surface.

2. The drone pesticide spraying motor according to claim 1, characterized in that, The housing (4) is provided with a skeleton oil seal (2) and a sealing ring (3).

3. The drone pesticide spraying motor according to claim 1, characterized in that, A second sealing ring (7) is provided on the housing (4), and the second sealing ring (7) is located above the first sealing ring (3).

4. The drone pesticide spraying motor according to claim 1, characterized in that, A sealing ring three (15) is provided on the housing (4), and the sealing ring three (15) is located above the sealing ring two (7).

5. The drone pesticide spraying motor according to claim 1, characterized in that, The rear cover (11) and the housing (4) are both provided with threaded holes (18), and the inner surface of the threaded holes (18) is threaded by screws (14).

6. The drone pesticide spraying motor according to claim 1, characterized in that, Both the phase wire seat (12) and the phase wire pressure plate (13) are provided with threaded holes (19), and screws (17) are threadedly connected to the inner surface of the threaded holes (19).

7. The drone pesticide spraying motor according to claim 1, characterized in that, A shaft (1) is provided on the housing (4), and the shaft (1) is rotatably connected to the inner surface of the housing (4).