Variable-pitch rim propeller based on non-contact energy transfer

Abstract

The invention relates to the technical field of ship power equipment, and provides a variable-pitch rim propeller based on non-contact energy transfer, and the variable-pitch rim propeller based on non-contact energy transfer comprises a fixed assembly, a rotating assembly and a paddle control assembly; the rotating assembly comprises a rim assembly and blades; the rim assembly is rotatably arranged on the fixing assembly, and the blades are rotatably arranged on the rim assembly. The paddle control assembly comprises a wireless transmitting module which is arranged on the fixing assembly; the wireless receiving module and the paddle control module are arranged on the rim assembly, the wireless receiving module is electrically connected with the paddle control module, and the paddle control module is connected with the blades. According to the variable-pitch rim propeller based on non-contact energy transfer, control signals and electric energy used for adjusting the blades are transmitted to the wireless receiving module on the rim assembly through the wireless transmitting module on the fixing assembly in a wireless transmission mode, and a connecting structure or a connecting cable does not need to be arranged between the fixing assembly and the rim assembly.

Description

Technical Field

[0001] This invention relates to the field of marine propulsion equipment technology, and in particular to a variable pitch rim propeller based on non-contact energy transfer. Background Technology

[0002] Existing ships typically use propeller-type propulsion. To improve the handling performance of propulsion, existing technologies have proposed an adjustable pitch function on the propulsion. By changing the propeller pitch, the propeller angle can be adjusted, and through changes in the blade angle, rapid forward and reverse rotation without motor reversal can be achieved, optimizing propulsion efficiency at different speeds. However, existing pitch adjustment devices require adding complex connection structures and cables between the fixed and rotating mechanisms of the propulsion. These connection structures and cables can seriously affect the reliability and sealing of the propulsion. Summary of the Invention

[0003] This invention provides a variable pitch rim propeller based on non-contact energy transfer, which solves the problem in the prior art where the pitch adjustment device requires a complex connection structure and connecting cables between the fixed mechanism and the rotating mechanism of the propeller, which seriously affects the reliability and sealing of the propeller.

[0004] This invention provides a variable-pitch rim propulsion device based on non-contact energy transfer, comprising: Fixed components; A rotating assembly includes a rim assembly and blades; the rim assembly is rotatably disposed on the fixed assembly, and the blades are rotatably disposed on the rim assembly; The blade control assembly includes a wireless transmitting module, a wireless receiving module, and a blade control module; the wireless transmitting module is disposed on the fixed assembly, the wireless receiving module and the blade control module are disposed on the wheel rim assembly, the wireless receiving module and the blade control module are electrically connected, and the blade control module is connected to the blade; The fixed component is used to cooperate with the rim component to drive the rim component to rotate relative to the fixed component. The wireless transmitting module is used to wirelessly transmit power and control signals with the wireless receiving module. The blade control module is used to receive the power and control signals transmitted by the wireless receiving module to control the blade to rotate relative to the rim component.

[0005] According to a variable-pitch rim propeller based on non-contact energy transfer according to the present invention, the fixed assembly includes: The flow guide shell and the motor stator are annular, and the motor stator and the wireless transmission module are both disposed in the flow guide shell; The rim assembly includes: The rim body and the motor rotor are annular and rotatably disposed on the guide shell. The blades are rotatably disposed on the inner side of the annular rim body. The motor rotor, the wireless receiving module, and the blade control module are all disposed on the rim body. The motor stator and the motor rotor are arranged opposite to each other.

[0006] According to a variable-pitch rim propulsion device based on non-contact energy transfer according to the present invention, the wireless transmission module includes: an energy transmission unit and a first wireless communication unit; The wireless receiving module includes: an energy receiving unit and a second wireless communication unit; The energy transmitting unit and the energy receiving unit are arranged opposite to each other. The energy transmitting unit is used to wirelessly transmit electrical energy to the energy receiving unit. The energy receiving unit is electrically connected to the blade control module. The first wireless communication unit and the second wireless communication unit are communicatively connected. The second wireless communication unit is electrically connected to the blade control module.

[0007] According to a variable-pitch rim propulsion device based on non-contact energy transfer according to the present invention, the energy emission unit includes: a primary magnetic core and a primary coil; the primary coil is wound around the primary magnetic core; The energy receiving unit includes: a secondary magnetic core and a secondary coil; the secondary coil is wound around the secondary magnetic core; The primary magnetic core and the secondary magnetic core are arranged at a relative interval.

[0008] According to a variable-pitch rim propeller based on non-contact energy transfer according to the present invention, the secondary magnetic core is disposed on the inner side of the end of the rim body; The primary magnetic core is disposed inside the flow guide shell and is positioned opposite to the secondary magnetic core.

[0009] According to a variable-pitch rim propulsion device based on non-contact energy transfer according to the present invention, an air gap is formed between the guide shell and the rim body.

[0010] According to a non-contact power transfer based variable pitch rim propeller of the present invention, an installation cavity is formed in the rim body, the wireless receiving module and the blade control module are installed in the installation cavity, and the installation cavity is filled with an insulating cooling medium.

[0011] According to a variable-pitch rim propeller based on non-contact energy transfer according to the present invention, the blade control module includes: The blade controller comprises a blade controller, an angle sensor, and a micro actuator. The blade controller is connected to the wireless receiving module, the angle sensor, and the micro actuator. The micro actuator is driven by the blade. The angle sensor is located on the blade. The angle sensor is used to detect the rotation angle of the blade. The blade controller is used to receive electrical energy and control signals transmitted by the wireless receiving module to control the rotation of the blade relative to the wheel rim assembly.

[0012] According to a non-contact energy transfer based variable pitch rim propeller of the present invention, there are multiple blades, and the multiple blades are arranged at intervals along the circumference of the rim assembly; The angle sensor, the micro actuator, and the blade are each configured in a corresponding manner.

[0013] This invention discloses a variable-pitch rim propeller based on non-contact energy transfer. A fixed component drives the rim assembly to rotate, which in turn drives the blades to rotate, thereby generating thrust on the hull in water. Simultaneously, blade control components are installed on both the fixed and rim assemblies to receive external control signals. The blade angle is adjusted according to these signals to regulate the propulsion efficiency under different operating conditions. Furthermore, the control signals and electrical energy used for blade adjustment are wirelessly transmitted from a wireless transmitter on the fixed component to a wireless receiver on the rim assembly. This eliminates the need for any physical connection structure or cables between the fixed and rim assemblies, which helps to reduce the impact on the propeller's reliability and sealing while achieving pitch adjustment. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0015] Figure 1 This is a cross-sectional view of a variable-pitch rim propeller based on non-contact energy transfer provided in an embodiment of the present invention.

[0016] Figure 2 This is a schematic diagram of the connection between a variable-pitch rim propeller and a main controller based on non-contact energy transfer, provided in an embodiment of the present invention.

[0017] Figure 3 This is a schematic diagram of the energy transmitting unit and the energy receiving unit provided in an embodiment of the present invention.

[0018] Figure 4This is a schematic diagram of the system connection of a variable-pitch rim propeller based on non-contact energy transfer, provided by an embodiment of the present invention.

[0019] Figure label: 1. Variable pitch rim propeller based on non-contact energy transfer; 11. Fixed assembly; 111. Air guide shell; 112. Motor stator; 12. Rotating assembly; 121. Flange assembly; 1211. Flange body; 1212. Motor rotor; 122. Blade; 123. Bearing 13. Blade control assembly; 131. Wireless transmission module; 1311. Energy transmission unit; 13111. Primary magnetic core; 13112. Primary coil; 1312. First wireless communication unit; 132. Wireless receiving module; 1321. Energy receiving unit; 13211. Secondary magnetic core; 13212. Secondary coil; 1322. Secondary wireless communication unit; 133. Blade control module; 1331. Blade controller; 1332. Angle sensor; 1333. Miniature actuator; 2. Main controller. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0021] The following is combined with Figures 1-4 This invention describes a variable-pitch rim propeller based on non-contact energy transfer.

[0022] like Figure 1 , Figure 2 and Figure 4 As shown, the present invention provides a variable pitch rim propeller 1 based on non-contact energy transfer, comprising: a fixed component 11, a rotating component 12, and a blade control component 13; the rotating component 12 includes a rim component 121 and a blade 122; the rim component 121 is rotatably disposed on the fixed component 11, and the blade 122 is rotatably disposed on the rim component 121.

[0023] The blade control assembly 13 includes a wireless transmitter module 131, a wireless receiver module 132, and a blade control module 133. The wireless transmitter module 131 is disposed on the fixed assembly 11, the wireless receiver module 132 and the blade control module 133 are disposed on the rim assembly 121, the wireless receiver module 132 and the blade control module 133 are electrically connected, and the blade control module 133 is connected to the blade 122.

[0024] The fixed component 11 is used to cooperate with the rim component 121 to drive the rim component 121 to rotate relative to the fixed component 11. The wireless transmitting module 131 is used to wirelessly transmit power and control signals with the wireless receiving module 132. The blade control module 133 is used to receive the power and control signals transmitted by the wireless receiving module 132 to control the blade 122 to rotate relative to the rim component 121.

[0025] In this embodiment, the fixed component 11 is used to connect to the hull, and the rotating component 12 can rotate relative to the fixed component 11 based on the rim component 121. The blades 122 on the rim component 121 can agitate the water during rotation, interacting with the water to generate thrust on the hull, causing the hull to move forward or backward under the thrust. Specifically, the fixed component 11 and the rim component 121 can be combined to form a functional structure similar to an electric motor. By energizing the fixed component 11, the rim component 121 is driven to rotate relative to the fixed component 11 through the interaction between the current and magnetic field between the fixed component 11 and the rim component 121. This design is a conventional configuration in the art and will not be described in detail here.

[0026] Meanwhile, in this embodiment, blade control components 13 are respectively provided on the fixed component 11 and the rim component 121. The blade control components 13 can accept control signals input from the outside (e.g., the main controller 2 of the hull) and control the blades 122 to rotate relative to the rim component 121 based on the control signals, so as to adjust the angle of the blades 122 and thereby adjust the propulsion efficiency of the propeller under different working conditions.

[0027] Specifically, the wireless transmitting module 131, which is mounted on the fixed component 11, can be used to receive external power supply and control signals. The wireless transmitting module 131 can transmit the external power supply and control signals to the wireless receiving module 132 on the rim component 121 via wireless transmission. The wireless receiving module 132 can transmit the received power and control signals to the blade control module 133. The blade control module 133 can then drive the blade 122 to rotate based on the control signals, thereby adjusting the angle of the blade 122.

[0028] As can be seen from the above, the variable-pitch rim thruster 1 based on non-contact energy transfer of the present invention drives the rim assembly 121 to rotate through the fixed assembly 11, thereby driving the blades 122 to rotate, so as to generate thrust on the hull in the water. At the same time, blade control assemblies 13 are respectively set on the fixed assembly 11 and the rim assembly 121 to receive external control signals and adjust the angle of the blades 122 according to the external control signals to adjust the thruster's propulsion efficiency under different operating conditions. Meanwhile, the control signals and electrical energy used to adjust the blades 122 are transmitted wirelessly to the wireless receiving module 132 on the rim assembly 121 through the wireless transmitting module 131 on the fixed assembly 11. There is no need to set any physical connection structure or connecting cable between the fixed assembly 11 and the rim assembly 121, which is beneficial to reduce the impact on the reliability and sealing of the thruster while realizing pitch adjustment.

[0029] Specifically, the transmission of control signals between the wireless transmitting module 131 and the wireless receiving module 132 can be carried out through communication methods such as Wi-Fi, Bluetooth, Zigbee or radio communication protocols of specific frequency bands, and the transmission of electrical power between the wireless transmitting module 131 and the wireless receiving module 132 can be achieved through contactless transmission via inductive coupling.

[0030] Specifically, in some embodiments, such as Figure 1 As shown, the fixed assembly 11 includes: a flow guide shell 111 and a motor stator 112, the flow guide shell 111 being annular; the motor stator 112 and the wireless transmission module 131 are both disposed on the flow guide shell 111.

[0031] The rim assembly 121 includes: a rim body 1211 and a motor rotor 1212. The rim body 1211 is annular and is rotatably disposed on the guide shell 111. The blades 122 are rotatably disposed on the inner side of the annular rim body 1211. The motor rotor 1212, the wireless receiving module 132, and the blade control module 133 are all disposed on the rim body 1211.

[0032] The motor stator 112 and the motor rotor 1212 are arranged opposite to each other.

[0033] In this embodiment, the guide shell 111 serves as the supporting frame structure for the entire non-contact energy transfer-based variable-pitch rim thruster 1, and is used for connection to the hull. The rim body 1211 serves as the supporting frame structure for the entire rotating assembly 12, and is used for tractably connecting to the guide shell 111. Both the guide shell 111 and the rim body 1211 are annular, allowing the guide shell 111 to be fitted onto the outside of the rim body 1211.

[0034] Specifically, the bearing 123 can be a water-lubricated bearing, disposed at both ends of the rim body 1211. The bearing 123 can be used to determine the axial position of the rotating assembly, and to transmit the thrust generated by the rotation of the blade 122 between the rim body 1211 and the guide shell 111. The motor stator 112 mounted on the guide shell 111 is positioned opposite to the motor rotor 1212 on the rim body 1211, driving the motor rotor 1212 to rotate the rim body 1211 relative to the guide shell 111. Exemplarily, the motor stator 112 and motor rotor 1212 can form a stator-rotor transmission structure similar to that of a DC or AC motor. Taking a permanent magnet synchronous motor as an example, the motor rotor 1212 is composed of multiple sets of permanent magnets. When AC current is applied to the motor stator 112, a rotating magnetic field is generated, driving the motor rotor 1212 to rotate.

[0035] Specifically, in some embodiments, such as Figure 1 and Figure 4 As shown, the wireless transmitting module 131 includes an energy transmitting unit 1311 and a first wireless communication unit 1312; the wireless receiving module 132 includes an energy receiving unit 1321 and a second wireless communication unit 1322, and the energy receiving unit 1321 is electrically connected to the blade control module 133; wherein, the energy transmitting unit 1311 and the energy receiving unit 1321 are arranged opposite to each other, and the energy transmitting unit 1311 is used to wirelessly transmit electrical energy to the energy receiving unit 1321; the first wireless communication unit 1312 and the second wireless communication unit 1322 are communicatively connected, and the second wireless communication unit 1322 is electrically connected to the blade control module 133.

[0036] In this embodiment, an energy transmitting unit 1311 and an energy receiving unit 1321 are respectively provided on the guide shell 111 and the rim body 1211. The energy transmitting unit 1311 can be connected to the power supply circuit of the hull to receive the electrical energy supplied by the hull and transmit the electrical energy to the energy receiving unit 1321 wirelessly. The energy receiving unit 1321 then supplies the electrical energy to the propeller control module 133. At the same time, a first wireless communication unit 1312 and a second wireless communication unit 1322 are respectively provided on the guide shell 111 and the rim body 1211. The first wireless communication unit 1312 and the second wireless communication unit 1322 can transmit electrical signals (i.e., control signals) between them. The second wireless communication unit 1322 transmits the control signals to the propeller control module 133.

[0037] Specifically, in some embodiments, such as Figure 3As shown, the energy transmitting unit 1311 includes a primary magnetic core 13111 and a primary coil 13112; the primary coil 13112 is wound around the primary magnetic core 13111; the energy receiving unit 1321 includes a secondary magnetic core 13211 and a secondary coil 13212; the secondary coil 13212 is wound around the secondary magnetic core 13211; the primary magnetic core 13111 and the secondary magnetic core 13211 are arranged at a relative interval.

[0038] In this embodiment, when an alternating current passes through the primary coil 13112, an alternating magnetic field is generated around it; the alternating magnetic field passes through the secondary coil 13212 and induces an electromotive force in the secondary coil 13212, thereby realizing the transfer of electrical energy between the primary coil 13112 and the secondary coil 13212. The structure is simple, convenient and practical.

[0039] Specifically, in some embodiments, the secondary magnetic core 13211 is disposed on the inner side of the end of the rim body 1211; the primary magnetic core 13111 is disposed on the inner side of the flow guide shell 111, and is disposed opposite to the secondary magnetic core 13211.

[0040] In this embodiment, an inner cavity is formed at the end of the rim body 1211 for mounting the secondary magnetic core 13211 and the secondary coil 13212; an inner cavity is also provided on the inner side of the guide shell 111 for mounting the primary magnetic core 13111 and the primary coil 13112. Meanwhile, the motor rotor 1212 can be disposed on the inner side of the outer peripheral wall of the rim body 1211, and the motor stator 112 is disposed inside the guide shell 111, opposite to the motor rotor 1212.

[0041] In some embodiments, an air gap is formed between the guide shell 111 and the rim body 1211. In this embodiment, by leaving an air gap at the ends of the guide shell 111 and the rim body 1211, the presence of the air gap allows water to flow into the air gap and carry away the heat generated by the components inside the guide shell 111 and the rim body 1211.

[0042] Optionally, both the primary magnetic core 13111 and the secondary magnetic core 13211 can be ring-shaped cores to form a disc-like inductive coupler. This allows the primary magnetic core 13111 and the secondary magnetic core 13211 to maintain their relative arrangement during the rotation of the rim body 1211 relative to the guide shell 111, thereby maintaining the electrical energy transfer between the energy transmitting unit 1311 and the energy receiving unit 1321. Specifically, the cores can be ferrite cores with high permeability.

[0043] Specifically, in some embodiments, such as Figure 1 As shown, a mounting cavity is formed inside the rim body 1211, and the wireless receiving module 132 and the blade control module 133 are installed inside the mounting cavity, which is filled with an insulating cooling medium.

[0044] In this embodiment, an installation cavity is constructed within the rim body 1211. The installation cavity is used to install the wireless receiving module 132 and the blade control module 133. An insulating cooling medium is filled into the installation cavity. The insulating cooling medium can play a heat transfer role between the wireless receiving module 132 and the blade control module 133 and the cavity wall of the installation cavity, so as to guide the heat generated by the wireless receiving module 132 and the blade control module 133 during operation to the cavity wall of the installation cavity and dissipate it outward through the cavity wall of the installation cavity and the outer wall of the rim body 1211. Most of the heat can be carried away by the water flow in the air gap between the rim body 1211 and the guide shell 111.

[0045] Specifically, the motor rotor 1212 can be fitted into a matching protective sleeve and installed together with the protective sleeve on the rim body 1211.

[0046] It is understood that, since the present invention does not require the addition of a connecting structure or cable between the rim body 1211 and the flow guide shell 111, and does not require the opening of through holes in the rim body 1211 and the flow guide shell 111, the most reliable static sealing methods (such as O-rings or welding) can be used to seal the rim body 1211 and the flow guide shell 111 respectively, which is beneficial to improving the sealing performance of the rim body 1211 and the flow guide shell 111.

[0047] In some embodiments, such as Figure 1 and Figure 4 As shown, the blade control module 133 includes: a blade controller 1331, an angle sensor 1332, and a micro actuator 1333. The blade controller 1331 is connected to the wireless receiver module 132, the angle sensor 1332, and the micro actuator 1333. The micro actuator 1333 is connected to the blade 122. The angle sensor 1332 is located on the blade 122. The angle sensor 1332 is used to detect the rotation angle of the blade 122. The blade controller 1331 is used to receive electrical energy and control signals transmitted by the wireless receiver module 132 to control the rotation of the blade 122 relative to the rim assembly 121.

[0048] In this embodiment, by setting an angle sensor 1332 on the blade 122, the angle sensor 1332 can detect the rotation angle of the blade 122 and generate a corresponding angle signal to transmit to the blade controller 1331. The blade controller 1331 can determine whether the current rotation angle of the blade 122 is consistent with the target angle corresponding to the control signal based on the rotation angle corresponding to the angle signal. If the rotation angle has not reached the target angle, the micro actuator 1333 is controlled to drive the blade 122 to rotate until the rotation angle of the blade 122 reaches the target angle, forming a closed-loop control, which is beneficial to improving control accuracy.

[0049] The micro actuator 1333 can be any of a micro servo motor, a micro stepper motor, or a piezoelectric actuator.

[0050] In some embodiments, such as Figure 1 , Figure 2 and Figure 4 As shown, there are multiple blades 122, which are arranged at intervals along the circumference of the rim assembly 121; the angle sensor 1332, the micro actuator 1333 and the blades 122 are set in a one-to-one correspondence.

[0051] In this embodiment, multiple blades 122 are arranged circumferentially along the rim assembly 121. Each blade 122 is equipped with an independent angle sensor 1332 and a micro actuator 1333. The blade controller 1331 can independently control the rotation angle of each blade 122 through the angle sensor 1332 and the micro actuator 1333. By independently controlling the rotation angle of each blade 122, conventional forward and reverse functions can be realized. Combined with the propeller's own azimuth device, complex lateral thrust vectors can also be generated, greatly improving the ship's low-speed maneuverability and dynamic positioning capability.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A variable-pitch rim propeller based on non-contact energy transfer, characterized in that, include: Fixed components; A rotating assembly includes a rim assembly and blades; the rim assembly is rotatably disposed on the fixed assembly, and the blades are rotatably disposed on the rim assembly; The blade control assembly includes a wireless transmitting module, a wireless receiving module, and a blade control module; the wireless transmitting module is disposed on the fixed assembly, the wireless receiving module and the blade control module are disposed on the wheel rim assembly, the wireless receiving module and the blade control module are electrically connected, and the blade control module is connected to the blade; The fixed component is used to cooperate with the rim component to drive the rim component to rotate relative to the fixed component. The wireless transmitting module is used to wirelessly transmit power and control signals with the wireless receiving module. The blade control module is used to receive the power and control signals transmitted by the wireless receiving module to control the blade to rotate relative to the rim component.

2. A variable-pitch rim propeller based on non-contact energy transfer according to claim 1, characterized in that, The fixing component includes: The flow guide shell and the motor stator are annular, and the motor stator and the wireless transmission module are both disposed in the flow guide shell; The rim assembly includes: The rim body and the motor rotor are annular and rotatably disposed on the guide shell. The blades are rotatably disposed on the inner side of the annular rim body. The motor rotor, the wireless receiving module, and the blade control module are all disposed on the rim body. The motor stator and the motor rotor are arranged opposite to each other.

3. A variable-pitch rim propeller based on non-contact energy transfer according to claim 2, characterized in that, The wireless transmission module includes: an energy transmission unit and a first wireless communication unit; The wireless receiving module includes: an energy receiving unit and a second wireless communication unit; The energy transmitting unit and the energy receiving unit are arranged opposite to each other. The energy transmitting unit is used to wirelessly transmit electrical energy to the energy receiving unit. The energy receiving unit is electrically connected to the blade control module. The first wireless communication unit and the second wireless communication unit are communicatively connected. The second wireless communication unit is electrically connected to the blade control module.

4. A variable-pitch rim propeller based on non-contact energy transfer according to claim 3, characterized in that, The energy emission unit includes: a primary magnetic core and a primary coil; the primary coil is wound around the primary magnetic core; The energy receiving unit includes: a secondary magnetic core and a secondary coil; the secondary coil is wound around the secondary magnetic core; The primary magnetic core and the secondary magnetic core are arranged at a relative interval.

5. A variable-pitch rim propeller based on non-contact energy transfer according to claim 4, characterized in that, The secondary magnetic core is disposed on the inner side of the end of the rim body; The primary magnetic core is disposed inside the flow guide shell and is positioned opposite to the secondary magnetic core.

6. A variable-pitch rim propeller based on non-contact energy transfer according to claim 5, characterized in that, An air gap is formed between the guide shell and the rim body.

7. A variable-pitch rim propeller based on non-contact energy transfer according to claim 2, characterized in that, An installation cavity is formed within the wheel rim body, and the wireless receiving module and the propeller control module are installed within the installation cavity, which is filled with an insulating cooling medium.

8. A variable-pitch rim propeller based on non-contact energy transfer according to claim 1 or 2, characterized in that, The blade control module includes: The blade controller comprises a blade controller, an angle sensor, and a micro actuator. The blade controller is connected to the wireless receiving module, the angle sensor, and the micro actuator. The micro actuator is driven by the blade. The angle sensor is located on the blade. The angle sensor is used to detect the rotation angle of the blade. The blade controller is used to receive electrical energy and control signals transmitted by the wireless receiving module to control the rotation of the blade relative to the wheel rim assembly.

9. A variable-pitch rim propeller based on non-contact energy transfer according to claim 8, characterized in that, There are multiple blades, and the multiple blades are arranged at intervals along the circumference of the rim assembly; The angle sensor, the micro actuator, and the blade are each configured in a corresponding manner.

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