Magnetic suspension rotor wing heat dissipation structure and rotor wing system thereof
By introducing air gaps and heat dissipation microflowers into the magnetic levitation rotor structure of the rotorcraft, the problem of poor heat dissipation and dust resistance of the traditional rotorcraft is solved, more efficient heat dissipation and dust protection are achieved, and the service life of the rotor is extended. Increased lift.
Patent Information
- Application Number
- CN202421114663.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-21
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-05-21
AI Technical Summary
The heat dissipation and dust resistance of traditional rotorcraft have poor heat dissipation and dust resistance, resulting in an increased risk of rotor failure.
A magnetic levitation rotor heat dissipation structure is designed. By forming an air gap between the rotor rotor and the stator, and a heat dissipation microflower is set up at the connecting part of the blade, heat exchange is used for airflow, to prevent dust deposition and improve heat dissipation efficiency.
It effectively improves the heat dissipation performance of the rotor, reduces dust accumulation, extends the service life of the rotor, and reduces the overall weight to a certain extent and improves lift.
Smart Images
Figure CN222247633U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of aircraft, in particular to a magnetic suspension rotor heat dissipation structure and a rotor system thereof. Background Art
[0002] A gyroplane is a type of aircraft between a helicopter and an airplane. Its core components include a rotor that generates lift, a propeller that provides forward momentum, and a wing that provides partial lift. Compared with helicopters and airplanes, gyroplanes have the advantages of high safety, low requirements for take-off and landing conditions, a wide operating range, simple structure, and light weight.
[0003] The rotor device of a traditional rotorcraft consists of rotor blades, a hub, and a rotor shaft. The rotor blades are installed on the hub, and the hub is connected to the transmission system through the central rotor shaft. The driving force of the power system is transmitted to the rotor shaft through the transmission device after being reduced by multi-stage gear transmission, thereby driving the hub and rotor blades to rotate.
[0004] Magnetic levitation is one of the ways to drive the rotor blades to rotate and generate lift. Magnetic levitation will generate heat or accumulate dust during the working process. If there is too much dust or too much heat accumulation, it will cause the rotor to malfunction. The heat dissipation performance of the existing rotor structure is poor, and generally a reasonable arrangement of heat dissipation ducts is required. The existence of ducts will increase the complexity of the rotor structure on the one hand, and on the other hand, dust and other debris will accumulate, reducing the suspension air gap, affecting the normal operation of the magnetic levitation rotor.
[0005] Therefore, how to reduce heat dissipation and dust accumulation during use is one of the problems to be solved by those skilled in the art. Utility Model Content
[0006] The technical problem to be solved by the utility model is that the existing rotor structure has poor heat dissipation and dustproof performance.
[0007] The utility model is realized by the following technical solutions:
[0008] A magnetic levitation rotor heat dissipation structure comprises: a rotor stator and a rotor rotor, the rotor rotor comprising a blade connection part and a rotor ring, one side of the blade connection part is connected to a rotor paddle, one end of the rotor ring is connected to the other side of the blade connection part, the other end of the rotor ring is open to form a rotor stator accommodating space, the rotor stator is located in the accommodating space and an air gap is formed between the rotor stator and the rotor ring, and the blade connection part is provided with a heat dissipation microchannel.
[0009] The rotor of the utility model surrounds the rotor stator on three sides and an air gap is maintained between the rotor stator and the rotor. During the rotation of the rotor, the hot air formed due to the heat generated inside will exchange heat with the external air along the gap between the rotor and the rotor stator, thereby improving the heat dissipation; and because of the movement of the airflow, dust is not easy to deposit in the air gap, which plays a good dust-proof role. At the same time, a heat dissipation microchannel connected to the air gap is arranged at the blade connection part. The airflow velocity on one side of the blade is large and the pressure is small. The hot air flows in the direction of small pressure through the heat dissipation microchannel, that is, it will move outward along the heat dissipation microchannel, better realize heat exchange with the external air, take out part of the heat generated by the electromagnet and the disc motor, and improve the heat dissipation performance of the rotorcraft.
[0010] The utility model preferably provides a magnetic suspension rotor heat dissipation structure, wherein the heat dissipation microchannels are arranged in a plurality and are inclined downward from the rotor stator toward the rotor blade and penetrate the rotor rotor to communicate with the air gap.
[0011] By adopting this solution, rainwater can be prevented from entering the heat dissipation microchannel while ensuring good heat dissipation, and dust is not easy to accumulate. By setting the heat dissipation microchannel on the rotor, the weight of the entire rotor can be reduced to a certain extent. In addition, the airflow discharged downward from the heat dissipation microchannel can enhance the lift to a certain extent.
[0012] The utility model preferably adopts a magnetic levitation rotor heat dissipation structure, in which the heat dissipation microchannels are arranged up and down along the air gap position, that is, the heat dissipation microchannels are correspondingly arranged at the air gap formed by the upper rotor ring and the upper part of the rotor stator, and the heat dissipation microchannels are also correspondingly arranged at the air gap formed by the lower rotor ring and the lower part of the rotor stator, so that the heat of the upper and lower air gaps can be easily extracted.
[0013] The utility model preferably adopts a magnetic levitation rotor heat dissipation structure, wherein the rotor rotor and the rotor stator are provided with an axial support assembly in the axial direction and a radial limit assembly in the radial direction, and the heat dissipation microchannels are arranged up and down corresponding to the position of the radial limit assembly to avoid affecting the radial limit assembly, and the up and down arrangement can achieve heat dissipation more quickly.
[0014] Moreover, the position of the heat dissipation microchannel should be staggered with the position of the rotor propeller. This is mainly because the airflow discharged downward from the heat dissipation microchannel can enhance the lift to a certain extent. Staggering the position of the rotor propeller can prevent the rotor propeller from blocking the airflow.
[0015] The utility model preferably provides a magnetic suspension rotor heat dissipation structure, wherein the diameter of the heat dissipation microchannel is 1-2 mm.
[0016] The utility model preferably adopts a magnetic suspension rotor heat dissipation structure, wherein the heat dissipation microchannel has an inclination angle of 20-60 degrees, and the combination of the diameter and the inclination angle can achieve better heat dissipation.
[0017] A rotor structure comprises the above-mentioned heat dissipation structure.
[0018] The utility model preferably provides a rotor system, wherein one end of the rotor stator away from the blade connection portion is connected to the aircraft body. One end of a plurality of rotor blades is connected to the inner side of the rotor rotor, and the other ends of the plurality of rotor blades are connected to each other at the center of the ring. This structure is an annular rotor structure, that is, the rotor blades are distributed in the middle.
[0019] The utility model preferably provides a rotor system, wherein the rotor stator comprises an annular portion and an intermediate connecting portion, wherein the annular portion is located in the accommodating space of the rotor rotor, and the intermediate connecting portion is connected to the aircraft body, wherein one end of the rotor blade is connected to the outer side of the rotor rotor, and the other end of the rotor blade is freely extended. This structure is a disc rotor structure, that is, the rotor blades are distributed on the outer side.
[0020] The utility model has the following advantages and beneficial effects:
[0021] 1. The rotor heat dissipation structure of the utility model has a rotor rotor surrounded by a rotor stator on three sides and an air gap is maintained between the rotor stator and the rotor. During the rotation of the rotor rotor, the air gap connected to the outside and the heat dissipation microchannel are conducive to heat dissipation, thereby improving the flight durability of the rotor structure.
[0022] 2. The heat dissipation microchannel of the utility model is designed to be inclined downward, so that rainwater and dust will not enter the heat dissipation microchannel, and the downward airflow from the inside to the outside can enhance the lift to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] The drawings described herein are used to provide a further understanding of the embodiments of the present utility model, constitute a part of this application, and do not constitute a limitation of the embodiments of the present utility model. In the drawings:
[0024] Figure 1 This is a schematic diagram of the heat dissipation structure of the utility model;
[0025] Figure 2 This is a schematic diagram of the rotor structure of Embodiment 2 or 3 of the utility model;
[0026] Figure 3 This is a schematic diagram of the rotor structure of Example 4 of the utility model;
[0027] Figure 4 For this utility model Figure 3 The enlarged structural diagram of the middle B part;
[0028] Figure 5 This is a schematic diagram of the structure of Example 4 of the utility model.
[0029] The names of the components in the attached drawings are as follows:
[0030] 10-rotor stator, 100-annular part, 101-middle connecting part, 11a-axial upper end ball, 11b-axial lower end ball, 12-radial ball; 21-rotor blade, 22-rotor rotor, 23-microchannel; 31-axial upper support assembly; 32-axial lower support assembly, 40-radial limit module, 50-rotation drive module, 51-disc motor drive coil. DETAILED DESCRIPTION
[0031] In order to make the purpose, technical solutions and advantages of the utility model more clearly understood, the utility model is further described in detail below in conjunction with embodiments and drawings. The schematic implementation methods of the utility model and their descriptions are only used to explain the utility model and are not intended to limit the utility model.
[0032] Example 1
[0033] like Figure 1 As shown, a magnetic levitation rotor heat dissipation structure includes: a rotor stator 10 and a rotor rotor 22, wherein the rotor rotor 22 includes a blade connecting portion and a rotor ring, one side of the blade connecting portion is connected to a rotor paddle 21, one end of the rotor ring is connected to the other side of the blade connecting portion, and the other end of the rotor ring is opened to form a accommodating space for the rotor stator 10, the rotor stator 10 is located in the accommodating space and an air gap is formed between the rotor stator 10 and the rotor ring, and the blade connecting portion is provided with a heat dissipation microchannel 23.
[0034] The rotor rotor 22 of the utility model surrounds the rotor stator 10 on three sides and an air gap is maintained between the rotor stator 10 and the rotor rotor 22. During the rotation of the rotor rotor 22, the hot air generated internally due to the heat will exchange heat with the external air along the gap between the rotor rotor 22 and the rotor stator 10, thereby improving the heat dissipation; and because of the movement of the airflow, dust is not easy to deposit in the air gap, which plays a good dust-proof role. At the same time, a heat dissipation microchannel 23 connected to the air gap is provided at the blade connection part. When the internal heat is high and the external blades drive the airflow to make the air pressure low, the hot air generated in the air gap will move outward along the heat dissipation microchannel 23, better realize heat exchange with the external air, take out part of the heat generated by the electromagnet and the disc motor, and improve the heat dissipation performance of the rotorcraft.
[0035] The heat dissipation microchannels 23 are provided in a plurality and are inclined downward from the rotor stator 10 toward the rotor blade 21 and penetrate the rotor rotor 22 to communicate with the air gap.
[0036] By adopting this solution, rainwater can be prevented from entering the heat dissipation microchannel 23 while ensuring good heat dissipation, and dust is not easy to accumulate. By arranging the heat dissipation microchannel 23 on the rotor 22, the weight of the entire rotor can be reduced to a certain extent. In addition, the airflow discharged downward from the heat dissipation microchannel 23 can enhance the lift to a certain extent.
[0037] The heat dissipation microchannels 23 are arranged up and down along the air gap position, that is, the heat dissipation microchannels 23 are correspondingly arranged at the air gap formed by the upper rotor ring and the upper part of the rotor stator 10, and the heat dissipation microchannels 23 are also correspondingly arranged at the air gap formed by the lower rotor ring and the lower part of the rotor stator 10, so that the heat in the upper and lower air gaps can be easily discharged.
[0038] The rotor 22 and the rotor stator 10 are provided with an axial support assembly in the axial direction and a radial limit assembly in the radial direction. The heat dissipation microchannels 23 are arranged up and down corresponding to the positions of the radial limit assemblies. The position of the radial limit assemblies is where heat is generated. A heat dissipation structure is provided near this position to achieve heat dissipation more quickly.
[0039] The position of the heat dissipation microchannel 23 should be staggered with the position of the rotor blade 21. This is mainly because the airflow discharged downward from the heat dissipation microchannel 23 can increase the lift to a certain extent. Staggering the position of the rotor blade 21 can prevent the rotor blade 21 from blocking the airflow.
[0040] The diameter of the heat dissipation microchannel 23 is 1-2 mm.
[0041] The inclination angle of the heat dissipation microchannel 23 is 30°.
[0042] Example 2
[0043] like Figure 2-Figure 4 As shown, a rotor system includes a rotor rotor 22, a rotor stator 10, an axial support module, a radial limit module 40, and a rotation drive module 50.
[0044] The rotor rotor 22 includes a blade connection part and a rotor outer ring, and the rotor outer ring includes an upper rotor ring and a lower rotor ring. The two ends of the blade connection part are respectively connected to the upper rotor ring and the lower rotor ring, and the blade connection part is connected to the rotor paddle 21. The rotor stator 10 is distributed in the accommodating space formed by the upper rotor ring and the lower rotor ring. One end of the rotor stator 10 away from the blade connection part is connected to the aircraft body, and one end of multiple rotor paddles 21 is connected to the blade connection part on the inner side of the rotor rotor 22, and the other ends of multiple rotor paddles 21 are mutually connected at the center of the ring. This structure is an annular rotor structure, that is, the rotor paddles 21 are distributed in the middle, and the heat dissipation microchannel 23 described in Example 1 is also provided on the blade connection part.
[0045] The axial support module includes a first support assembly and a second support assembly. The first support assembly is used to generate an air gap between the rotor 22 and the rotor stator 10 in the axial direction by using permanent magnetic suspension. The second support assembly is used to provide support when not suspended.
[0046] The first support assembly includes an axial upper support assembly 31 and an axial lower support assembly 32 , and both include a permanent magnet array and an induction rail. The upper rotor ring and the lower rotor ring are respectively provided with induction rails, and the rotor stator 10 is provided with a permanent magnet array.
[0047] The second supporting assembly is a ball and is located on the axial upper and lower sides of the rotor stator 10 close to the rotor rotor 22, and includes an axial upper end ball 11a and an axial lower end ball 11b. The rotor stator 10 is provided with a radial ball 12 on the radial side close to the rotor rotor 22. The axial upper end ball 11a is partially embedded in the upper end of the rotor stator 10, the axial lower end ball 11b is partially embedded in the lower end of the rotor stator 10, and the radial ball 12 is partially embedded in the side of the blade connecting portion close to the rotor stator 10.
[0048] The radial limiting module 40 is used to form an air gap in the radial direction between the rotor stator 10 and the rotor 22. The radial limiting module 40 includes a radial rotor iron ring, a radial electromagnet and a radial sensor. The radial rotor iron ring is embedded in the radial side of the rotor rotor 22 and is flush with the side. The radial electromagnet is embedded in the radial side of the rotor stator 10 and is flush with the side. The radial sensor is embedded in the radial side of the rotor rotor 22 and is flush with the side.
[0049] The rotation drive module 50 is used to drive the rotor 22 to drive the rotor blade 21 to rotate. The rotation drive module 50 includes a disc motor drive coil 51 and a permanent magnet ring, wherein the permanent magnet ring is embedded in the inner side surface of the upper end of the rotor 22, and the disc motor drive coil 51 is embedded in the upper end surface of the rotor stator 10.
[0050] Example 3
[0051] The difference between this embodiment and embodiment 2 is that the first support assembly adopts an electromagnetic suspension structure, the axial upper support assembly 31 adopts an axial upper end electromagnetic suspension assembly, and the axial lower support assembly 32 adopts an axial lower end electromagnetic suspension assembly, the axial upper end electromagnetic suspension assembly includes an upper axial iron ring, an upper axial electromagnet and an axial upper end sensor, the axial lower end electromagnetic suspension assembly includes a lower axial iron ring, a lower axial electromagnet and an axial lower end sensor, the upper axial iron ring is embedded in the inner side surface of the upper rotor ring of the rotor rotor 22 and is flush with the inner side surface, the lower axial iron ring is embedded in the inner side surface of the lower rotor ring of the rotor rotor 22 and is flush with the inner side surface; the upper axial electromagnet and the lower axial electromagnet are embedded in the upper and lower end surfaces of the rotor stator 10 and are flush with the end surfaces, and the axial upper end sensor and the axial lower end sensor are respectively embedded in the upper and lower end surfaces of the rotor stator 10 and are flush with the surface.
[0052] The volume of the lower end axial electromagnet is smaller than that of the upper end axial electromagnet. For the structure of the rotor enclosing the stator, the suspension is mainly controlled by the suction force at the upper end. Therefore, as long as the upper end suspension is sufficient, the volume of the electromagnet at the lower end can be reduced to reduce the weight.
[0053] Example 4
[0054] like Figure 5 As shown, the difference between this embodiment and embodiment 3 is that the rotor stator 10 includes an annular portion 100 and an intermediate connecting portion 101, the annular portion 100 is located in the accommodating space of the rotor 22, and the intermediate connecting portion 101 is connected to the aircraft body. One end of the rotor blade 21 is connected to the outer side of the rotor rotor 22, and the other end of the rotor blade 21 is freely extended. This structure is a disc rotor structure, that is, the rotor blade 21 is distributed on the outer side.
[0055] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above description is only the specific implementation method of the utility model and is not used to limit the protection scope of the utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.
Claims
1. A magnetic suspension rotor heat dissipation structure, characterized in that: include: A rotor stator (10) and a rotor rotor (22), wherein the rotor rotor (22) comprises a blade connection portion and a rotor ring, one side of the blade connection portion is connected to a rotor paddle (21), one end of the rotor ring is connected to the other side of the blade connection portion, the other end of the rotor ring is open to form a rotor stator (10) accommodating space, the rotor stator (10) is located in the accommodating space and an air gap is formed between the rotor stator (10) and the rotor ring, and the blade connection portion is provided with a heat dissipation microchannel (23).
2. A magnetic suspension rotor heat dissipation structure according to claim 1, characterized in that: The heat dissipation microchannels (23) are arranged in a plurality and are inclined downward from the rotor stator (10) toward the rotor blade (21) and penetrate the rotor rotor (22) to communicate with the air gap.
3. A magnetic suspension rotor heat dissipation structure according to claim 1 or 2, characterized in that: The heat dissipation microchannels (23) are arranged up and down along the connection position of the rotor blade (21).
4. A magnetic suspension rotor heat dissipation structure according to claim 1 or 2, characterized in that: The rotor (22) and the rotor stator (10) are provided with an axial support assembly in the axial direction for forming an air gap between the rotor stator (10) and the rotor (22) in the axial direction, and a radial limit assembly is provided in the radial direction for forming an air gap between the rotor stator (10) and the rotor (22) in the radial direction, and the heat dissipation microchannel (23) is arranged up and down corresponding to the position of the radial limit assembly.
5. A magnetic suspension rotor heat dissipation structure according to claim 1 or 2, characterized in that: The diameter of the heat dissipation microchannel (23) is 1-2 mm.
6. A magnetic suspension rotor heat dissipation structure according to claim 1 or 2, characterized in that: The inclination angle of the heat dissipation microchannel (23) is 20-60°.
7. A rotor system, characterized in that: It comprises the heat dissipation structure as described in any one of claims 1 to 6.