EVTOL motor arm structure
By using a combination of heat conduction pipe and heat sink in the eVTOL motor arm, the heat from the driving motor is absorbed and dissipated, the problem of overheating of the motor arm is solved, and the long-term and long-distance operation capability of the motor arm is achieved.
Patent Information
- Application Number
- CN202422190801.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-06
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-09-06
AI Technical Summary
The eVTOL motor arm is prone to overheating during long-term use, resulting in the inability to operate for a long time and long distances.
An eVTOL motor arm structure is designed, using a heat conducting pipe to absorb the heat from the driving motor, and transfer the heat to the air through the heat sink for heat dissipation, and at the same time, the heat dissipation is accelerated through the delivery pump and the cooling water circulation system.
It effectively avoids the problem of overheating of the drive motor during long-term use, and realizes the long-term and long-distance operation capability of the motor arm.
Smart Images
Figure CN223039821U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of eVTOL motor arms, and more specifically, the utility model relates to an eVTOL motor arm structure. Background Art
[0002] eVTOL is an electric vertical takeoff and landing aircraft, which is applied in many fields, such as the aerospace industry, the automotive industry, and the transportation industry. In eVTOL, the motor arm is one of the core structures, which bears the motor to drive the propeller to rotate, so that the eVTOL can fly. During the long-term use of the motor, a lot of heat will be generated, which may cause the motor to overheat and need to be stationary for a period of time before it can continue to be used, resulting in its inability to operate for a long time and over a long distance. Content of the Utility Model
[0003] In order to overcome the deficiencies of the prior art, the utility model provides an eVTOL motor arm structure, which has the advantage of avoiding inoperability due to overheating.
[0004] To achieve the above object, the utility model provides the following technical solution: an eVTOL motor arm structure, including an installation housing, a cooling plate is fixedly connected to the inner cavity of the installation housing, a heat sink is fixedly connected to the bottom end of the cooling plate, a delivery pipe is fixedly connected to the right side of the cooling plate, a delivery pump is fixedly connected to the top end of the delivery pipe, a heat conduction pipe is fixedly connected to the top end of the delivery pump, an output pipe is fixedly connected to the left side of the heat conduction pipe, and a drive motor is fixedly connected to the top end of the cooling plate.
[0005] As a preferred technical solution of the utility model, a rotating rod is fixedly sleeved on the output shaft of the drive motor, a propeller is fixedly connected to the top of the rotating rod, a movable bearing is fixedly connected to the top end of the installation housing, a rotating inner ring is movably sleeved on the surface of the rotating rod, a ball is rotatably connected between the movable bearing and the rotating inner ring, a strengthening connecting rod is fixedly connected to the side of the movable bearing away from the ball, a storage bin is fixedly connected to the top end of the movable bearing, an oil drain pipe is fixedly connected to the bottom end of the storage bin, and an oil wiping bead is movably sleeved in the inner cavity of the oil drain pipe.
[0006] As a preferred technical solution of the utility model, the bottom end of the heat sink is located outside the bottom of the installation housing, and the top end of the heat sink is located at the top end of the inner cavity of the cooling plate.
[0007] As a preferred technical solution of the utility model, the heat conduction pipe is in contact with the outer surface of the drive motor, and the inner cavities of the delivery pipe, the heat conduction pipe, and the output pipe are communicated.
[0008] As a preferred technical solution of the present utility model, the oiling beads are in contact with the ball bearings, and the drain pipe communicates with the inner cavity of the storage bin.
[0009] As a preferred technical solution of the present utility model, the top end of the movable bearing is located above the ball bearing, and a plug is inserted into the top end of the storage bin.
[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0011] 1. The present utility model drives the rotating rod by a driving motor to drive the propeller to rotate, so that the eVTOL obtains the force for flight. Then, the water pump is started to pump out the cooling water in the inner cavity of the cooling plate. The pumped cooling water is transported along the delivery pipe to the inner cavity of the heat conduction pipe, and then the heat of the driving motor is absorbed through the heat conduction pipe. Furthermore, the cooling water in the inner cavity of the heat conduction pipe absorbs the heat and then is transported along the output pipe to the inner cavity of the cooling plate. Then, the heat of the cooling water is transferred to the air at the bottom of the installation shell through the heat dissipation fins, so as to contact the low-temperature air in the air, thereby dissipating heat. It realizes the absorption of the heat of the driving motor through the heat conduction pipe, dissipates the heat of the driving motor, and then cools the cooling water through the cooling plate and the heat dissipation fins, avoiding the situation of overheating of the driving motor during long-term use.
[0012] 2. The present utility model strengthens the connection rod to reinforce and support the movable bearing. Then, through the movable bearing, the rotating inner ring and the ball bearings, the rotating rod rotates stably. And during the rotation process, the lubricating oil in the inner cavity of the storage bin is smeared on the surface of the oiling beads, and then the oiling beads smear on the surface of the ball bearings, thereby lubricating the movable bearing, the rotating inner ring and the ball bearings. And through the setting of the storage bin, the movable bearing, the rotating inner ring and the ball bearings can be lubricated for a long time. Thus, it realizes the improvement of the connection strength of the movable bearing, the rotating inner ring and the ball bearings through the strengthening connection rod, and stores the lubricating oil through the storage bin, so that more lubricating oil can be added at one time, avoiding the need for staff to smear lubricating oil frequently. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 is a schematic structural diagram of the present utility model;
[0014] Figure 2 is a schematic connection diagram of the structure installation shell of the present utility model;
[0015] Figure 3 is a schematic connection diagram of the structure cooling plate of the present utility model;
[0016] Figure 4 is a schematic connection diagram of the structure storage bin of the present utility model;
[0017] Figure 5This is a schematic diagram of the ball connection of the structure of the present utility model.
[0018] In the figure: 1. Installation housing; 2. Cooling plate; 3. Heat sink; 4. Delivery pipe; 5. Delivery pump; 6. Heat conduction pipe; 7. Output pipe; 8. Driving motor; 9. Rotating rod; 10. Propeller; 11. Movable bearing; 12. Rotating inner ring; 13. Ball; 14. Reinforcing connecting rod; 15. Storage bin; 16. Drain pipe; 17. Oil-applying bead; 18. Plug head. Specific embodiments
[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0020] As Figures 1 to 5 shown, the present utility model provides an eVTOL motor arm structure, including an installation housing 1. A cooling plate 2 is fixedly connected to the inner cavity of the installation housing 1. A heat sink 3 is fixedly connected to the bottom end of the cooling plate 2. A delivery pipe 4 is fixedly connected to the right side of the cooling plate 2. A delivery pump 5 is fixedly connected to the top end of the delivery pipe 4. A heat conduction pipe 6 is fixedly connected to the top end of the delivery pump 5. An output pipe 7 is fixedly connected to the left side of the heat conduction pipe 6. A driving motor 8 is fixedly connected to the top end of the cooling plate 2;
[0021] The driving motor 8 drives the rotating rod 9 to drive the propeller 10 to rotate, so that the eVTOL obtains the force for flight. Then, the delivery pump 5 is started to pump out the cooling water in the inner cavity of the cooling plate 2. The pumped cooling water is transported along the delivery pipe 4 to the inner cavity of the heat conduction pipe 6. Then, the heat conduction pipe 6 absorbs the heat of the driving motor 8. Furthermore, the cooling water in the inner cavity of the heat conduction pipe 6 absorbs the heat and then is transported along the output pipe 7 to the inner cavity of the cooling plate 2. Then, the heat sink 3 transfers the heat of the cooling water to the air at the bottom of the installation housing 1, so as to contact the low-temperature air in the air, thereby dissipating heat. It realizes the absorption of the heat of the driving motor 8 by the heat conduction pipe 6 and the dissipation of the heat of the driving motor 8. Then, the cooling water is cooled by the cooling plate 2 and the heat sink 3, avoiding the overheating of the driving motor 8 during long-term use.
[0022] Among them, a rotating rod 9 is fixedly sleeved on the output shaft of the drive motor 8, a propeller 10 is fixedly connected to the top of the rotating rod 9, a movable bearing 11 is fixedly connected to the top end of the installation housing 1, a rotating inner ring 12 is movably sleeved on the surface of the rotating rod 9, a ball 13 is rollingly connected between the movable bearing 11 and the rotating inner ring 12, a reinforcing connecting rod 14 is fixedly connected to the side of the movable bearing 11 away from the ball 13, a storage bin 15 is fixedly connected to the top end of the movable bearing 11, an oil drain pipe 16 is fixedly connected to the bottom end of the storage bin 15, and an oil wiping bead 17 is movably sleeved in the inner cavity of the oil drain pipe 16;
[0023] The movable bearing 11 is reinforced and supported by the reinforcing connecting rod 14. Then, the rotating rod 9 rotates stably through the movable bearing 11, the rotating inner ring 12, and the ball 13. During the rotation process, the lubricating oil in the inner cavity of the storage bin 15 is applied to the surface of the oil wiping bead 17, and then the oil wiping bead 17 applies it to the surface of the ball 13, thereby lubricating the movable bearing 11, the rotating inner ring 12, and the ball 13. And through the setting of the storage bin 15, the movable bearing 11, the rotating inner ring 12, and the ball 13 can be lubricated for a long time, thereby realizing the improvement of the connection strength of the movable bearing 11, the rotating inner ring 12, and the ball 13 through the reinforcing connecting rod 14, and storing the lubricating oil through the storage bin 15, so that more lubricating oil can be added at one time, avoiding the need for staff to frequently apply lubricating oil.
[0024] Among them, the bottom end of the heat sink 3 is located outside the bottom of the installation housing 1, and the top end of the heat sink 3 is located at the top end of the inner cavity of the cooling plate 2;
[0025] Since the bottom end of the heat sink 3 is located outside the bottom of the installation housing 1, during the flight of the eVTOL, the heat sink 3 can contact the low-temperature air outside the installation housing 1, thereby being able to dissipate heat from the heat sink 3 efficiently. Then, since the top end of the heat sink 3 is located at the top end of the inner cavity of the cooling plate 2, the heat sink 3 can evenly contact all the water in the inner cavity of the cooling plate 2, thereby being able to stably dissipate heat.
[0026] Among them, the heat conduction pipe 6 is in contact with the outer surface of the drive motor 8, and the inner cavities of the conveying pipe 4, the heat conduction pipe 6, and the output pipe 7 are communicated;
[0027] Through the contact between the heat conduction pipe 6 and the outer surface of the drive motor 8, the cooling water in the inner cavity of the heat conduction pipe 6 can absorb the heat of the drive motor 8. Then, since the inner cavities of the conveying pipe 4, the heat conduction pipe 6, and the output pipe 7 are communicated, the cooling water can circulate between the conveying pipe 4, the heat conduction pipe 6, and the output pipe 7.
[0028] Among them, the oil wiping bead 17 is in contact with the ball 13, and the oil drain pipe 16 is communicated with the inner cavity of the storage bin 15;
[0029] By contacting the oil wiping bead 17 with the rotating inner ring 12, during the rolling process of the ball 13, the oil wiping bead 17 can be driven to rotate, and then the lubricating oil in the inner cavity of the storage bin 15 is applied to the surface of the ball 13 through the drain pipe 16. Since the drain pipe 16 communicates with the inner cavity of the storage bin 15, more lubricating oil in the inner cavity of the storage bin 15 can be continuously applied to the surface of the oil wiping bead 17.
[0030] Among them, the top end of the movable bearing 11 is located above the ball 13, and a plug 18 is inserted into the top end of the storage bin 15.
[0031] Since the top end of the movable bearing 11 is located above the ball 13, the movable bearing 11 can block the ball 13 to prevent dust from entering between the balls 13 and causing the balls 13 to become blocked. Also, since a plug 18 is inserted into the top end of the storage bin 15, the plug 18 can seal the storage bin 15 to prevent the leakage of lubricating oil.
[0032] The working principle and usage process of the present utility model: Start the driving motor 8 to drive the rotating rod 9 to rotate, and then drive the propeller 10 to rotate through the rotating rod 9 to drive the installation housing 1 and the eVTOL to fly.
[0033] And by starting the delivery pump 5 to extract the cooling water in the cooling plate 2, the extracted cooling water is transported along the delivery pipe 4 to the inner cavity of the heat conduction pipe 6. After the heat conduction pipe 6 absorbs the heat of the driving motor 8, it enters the inner cavity of the cooling plate 2 through the output pipe 7. The cooling water transfers the heat to the heat dissipation fins 3, and then after the heat dissipation fins 3 come into contact with the external air, the temperature is reduced, thereby cooling the cooling water in the inner cavity of the cooling plate 2. Then, due to the settings of the movable bearing 11, the rotating inner ring 12, and the ball 13, the rotating rod 9 can rotate stably. And the connection strength between the movable bearing 11 and the installation housing 1 is improved by the strengthening connecting rod 14. During the rotation of the rotating inner ring 12 and the ball 13, the ball 13 contacts the oil wiping bead 17, thereby driving the oil wiping bead 17 to rotate, so that the lubricating oil in the inner cavity of the storage bin 15 is applied to the surface of the ball 13 through the oil wiping bead 17, thus lubricating the ball 13 and enabling the rotating rod 9 to rotate smoothly.
[0034] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.
[0035] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. An eVTOL motor arm structure, comprising a mounting housing (1), characterized in that: The inner cavity of the mounting shell (1) is fixedly connected to a cooling plate (2), the bottom end of the cooling plate (2) is fixedly connected to a heat sink (3), the right side of the cooling plate (2) is fixedly connected to a delivery pipe (4), the top end of the delivery pipe (4) is fixedly connected to a delivery pump (5), the top end of the delivery pump (5) is fixedly connected to a heat conduction pipe (6), the left side of the heat conduction pipe (6) is fixedly connected to an output pipe (7), and the top end of the cooling plate (2) is fixedly connected to a drive motor (8).
2. The eVTOL motor arm structure according to claim 1, characterized in that: The output shaft of the driving motor (8) is fixedly sleeved with a rotating rod (9), the top of the rotating rod (9) is fixedly connected to a propeller (10), the top of the mounting housing (1) is fixedly connected to a movable bearing (11), the surface of the rotating rod (9) is movably sleeved with a rotating inner ring (12), a ball (13) is rollingly connected between the movable bearing (11) and the rotating inner ring (12), a reinforcing connecting rod (14) is fixedly connected to a side of the movable bearing (11) away from the ball (13), the top of the movable bearing (11) is fixedly connected to a storage bin (15), the bottom of the storage bin (15) is fixedly connected to an oil drain pipe (16), and the inner cavity of the oil drain pipe (16) is movably sleeved with an oiling ball (17).
3. The eVTOL motor arm structure according to claim 1, characterized in that: The bottom end of the heat sink (3) is located outside the bottom of the mounting shell (1), and the top end of the heat sink (3) is located at the top end of the inner cavity of the cooling plate (2).
4. The eVTOL motor arm structure according to claim 1, characterized in that: The heat conducting pipe (6) is in contact with the outer surface of the driving motor (8), and the inner cavities of the delivery pipe (4), the heat conducting pipe (6) and the output pipe (7) are interconnected.
5. The eVTOL motor arm structure according to claim 2, characterized in that: The oiling bead (17) contacts the rolling ball (13), and the oil drain pipe (16) is connected to the inner cavity of the storage bin (15).
6. The eVTOL motor arm structure according to claim 2, characterized in that: The top end of the movable bearing (11) is located above the ball (13), and the top end of the storage bin (15) is plugged with a plug (18).