A close-packed electrostatic motor based on a rotor package

Abstract

The utility model discloses a kind of dense arrangement electrostatic motor based on rotor packaging, including rotor module, stator module and output module, the rotor module is composed of multiple electrically conductive rotor blades of radial dense arrangement along rotating circular face and the rotor frame of supporting rotor blade, medium module is arranged between adjacent rotor blades and is integrally packaged structure with rotor module solid connection, medium module uses dielectric constant greater than air insulating medium to promote equivalent capacitance and charged capacity;The stator module includes the stator blade of the alternating access external power supply positive and negative pole and the upper and lower annular support frame for positioning, charge exchange is realized between stator blade and rotor blade by brush type charge transmission component, rotor module is driven to rotate under the action of electrostatic field by coulomb force, and output module converts rotary motion into mechanical energy output.This application structure is compact, energy conversion efficiency is high, with the advantages of high power density, high stability and long time continuous operation.

Description

Technical Field

[0001] This utility model belongs to the field of motor technology, and in particular relates to a close-packed electrostatic motor based on rotor packaging. Background Technology

[0002] An electrostatic motor is a drive device that converts electrical energy into mechanical energy based on electrostatic force. Its working principle involves applying Coulomb force or Coulomb torque to a charged conductor using a high-voltage electric field, thereby driving a rotor to produce mechanical motion and converting electrical energy into mechanical energy. Unlike traditional electromagnetic motors that rely on magnetic field interactions for energy conversion, electrostatic motors rely entirely on the interaction between the electrostatic field and the electric charge for energy transfer. Therefore, they possess significant advantages such as simple structure, low power consumption, fast response speed, no electromagnetic interference, and the ability to be miniaturized. With the continuous development of microelectromechanical systems (MEMS) technology, precision drive control technology, and power source technology for special environments, electrostatic motors have shown broad application potential in fields such as micro-actuators (e.g., MEMS valves, micro-actuators), space devices (e.g., attitude adjustment mechanisms, space micro-robotic arms), precision instruments (e.g., high-precision gyroscopes, micro-force gauges), and special energy conversion (e.g., electrostatic energy recovery devices).

[0003] Existing electrostatic motors typically consist of three main parts: a stator module, a rotor module, and a charge transfer module. The stator module comprises several stator electrodes, which are alternately connected to the positive and negative terminals of a high-voltage DC power supply to create a strong electric field between the stator and the rotor. The rotor module consists of several conductive blades or plates fixed to the rotor frame and rotated under the influence of the electrostatic field and driven by Coulomb torque. The charge transfer module uses a brush contact type or an electric field induction type structure to achieve periodic charging and discharging of the rotor, thereby maintaining the continuous operation of the motor. Based on different structural forms, electrostatic motors can be mainly divided into three categories: disc-shaped, cylindrical, and linear. Among them, disc-shaped electrostatic motors, such as... Figure 1 As shown, with a planar rotating disk as the core component, stator and rotor electrodes are arranged alternately along the circumference, and charge transfer is achieved through brushes. This type of structure has advantages such as simple structure and relatively easy manufacturing, and was widely used in early electrostatic drive research; while cylindrical structures, such as Figure 2 As shown, a is the positive and negative electrode plate (stator), and b is the rotor blade (rotor). By setting multiple stationary and rotor electrodes distributed along the circumference on the surface of the cylinder, a larger electric field area can be obtained. Compared with the disc motor, the cylindrical motor can achieve more stable continuous rotation and is suitable for low-speed and high-precision drive applications. The linear electrostatic motor achieves linear reciprocating motion through electrostatic force and is often used in micro-mechanical actuators.

[0004] However, despite the theoretically high energy conversion efficiency of electrostatic motors, their actual output performance is still limited by multiple factors: First, electrostatic force is a surface force, and its magnitude is directly related to the charged area. In existing technologies, rotor blades are generally arranged in parallel along the circumference. While this design is beneficial for rotational balance, it is constrained by geometric space. In disc or cylindrical configurations, the blade width and number are limited by the circumferential length and insulation gap, making it impossible to simultaneously achieve a "large area" and "multiple blades" design, resulting in an upper limit on the total charged area. For cylindrical motors, the total charged area of ​​the blades theoretically does not exceed the side surface area of ​​the cylinder; for disc motors, it is limited by the radial dimension and number of layers of the disc. This insufficient space utilization directly limits the motor's output torque and power density.

[0005] Secondly, existing electrostatic motors generally use air as the dielectric medium between the rotor blades and the stator electrodes. Because air has an extremely low relative permittivity (approximately 1.0005), according to the capacitance calculation formula for a parallel-plate capacitor, C = ε₀ε₀... r S / d (where ε0 is the vacuum permittivity, ε r (where S is the relative permittivity of the dielectric, d is the area of ​​the plates facing each other, and d is the distance between the plates). With structural parameters such as ε0, S, and d fixed, the relative permittivity ε of the dielectric is... r The magnitude of the dielectric constant directly determines the value of the equivalent capacitance C, which in turn affects the charge Q on the rotor blades through Q=CU (U is the applied voltage). A small dielectric constant results in a limited equivalent capacitance value, thus limiting the charge on the rotor blades and leading to insufficient electrostatic output density. This problem is particularly prominent in applications requiring high power density or high torque output. Simultaneously, the limited breakdown strength of air also restricts the increase in motor operating voltage, further affecting system efficiency and reliability. Although using high dielectric constant media (such as barium titanate ceramics, insulating oil, or high dielectric constant silicone oil) can improve the charging capacity, existing motor structures are generally not adapted for non-gaseous media, making it difficult to effectively contain, seal, or maintain media stability. This leads to interference between solid media and rotor motion, while liquid media pose risks of leakage and corrosion, thus hindering engineering applications.

[0006] Therefore, how to significantly improve the effective charged area and charging capacity of rotor blades without increasing volume and complexity has become a key issue that urgently needs to be addressed in the field of electrostatic motor technology. Utility Model Content

[0007] This invention aims to solve the problems of limited charged area of ​​rotor blades, insufficient output force and unstable medium caused by the low dielectric constant of air in existing electrostatic motors. It proposes a closely packed electrostatic motor based on rotor packaging. By adopting a radially closely packed blade structure and a high dielectric constant medium packaging design in the rotor module, the charged area and equivalent capacitance per unit volume are significantly increased, achieving efficient charge storage and conversion, and thus improving the motor's output torque, power density and operational stability.

[0008] In view of this, the present invention provides a close-packed electrostatic motor based on rotor packaging, comprising: The rotor module includes multiple rotor blades arranged radially close together along a rotating circular surface and a rotor frame for supporting the rotor blades. A medium module is provided in the region of adjacent rotor blades in the rotor module. The medium module is fixedly connected to the rotor module and rotates synchronously with the rotor module. The stator module includes stator blades and a stator frame. The stator blades are supported and fixed on the stator frame and are alternately connected to the positive and negative terminals of an external power source to form an electrostatic driving electric field between the stator module and the rotor module. An output module, which is connected to the rotor module in a transmission manner, is used to output the rotational motion of the rotor module as mechanical energy; The dielectric module is an insulating medium with a preset dielectric constant, and the relative dielectric constant of the insulating medium is greater than that of air.

[0009] In some examples of this application, the insulating medium is any one of a solid medium, a liquid medium, or a powdered medium.

[0010] In some examples of this application, the rotor frame is arranged in a circular or flat shape, and a plurality of rotor blades are arranged in a uniform array in a radial pattern on the rotor frame. The medium module is disposed in the fan-shaped area of ​​two adjacent rotor blades, and the opposite sides of the medium module in the rotation direction are connected to the two adjacent rotor blades.

[0011] In some examples of this application, the radial arcs of the medium module are flush with the arcs at the ends of the rotor blades.

[0012] In some examples of this application, the filling height of the medium module in the axial direction of the rotor module is lower than or higher than the axial height of the rotor blade, and / or, the filling range of the medium module in the radial direction of the rotor module is smaller than or larger than the radial extension range of the rotor blade.

[0013] In some examples of this application, the medium module includes a thin-walled enclosure, which together with the rotor frame and the rotor blades forms several independent encapsulation cavities, each of which is filled with a liquid or powdered insulating medium material.

[0014] In some examples of this application, a charge transfer component is provided on the stator blade for charge exchange between the stator blade and the rotor blade.

[0015] In some examples of this application, the stator frame includes an upper support frame and a lower support frame, which are arranged vertically opposite to each other, and the stator blades are sandwiched between the upper support frame and the lower support frame and are evenly distributed in a circumferential direction.

[0016] In some examples of this application, the upper support frame and the lower support frame are arranged in a ring shape. The upper support frame has multiple upper spoke support rods on its inner side, and the multiple upper spoke support rods converge at the center to form a first mounting part. The lower support frame has multiple lower spoke support rods on its inner side, and the multiple lower spoke support rods converge at the center to form a second mounting part. The first mounting part and the second mounting part are rotatably connected to the output module.

[0017] In some examples of this application, stator connecting lines are provided on the stator frame. The stator connecting lines include upper conductive connecting lines and lower conductive connecting lines, which are used to connect several stator blades of the same polarity at intervals to form a positive electrode group and a negative electrode group, respectively. The upper conductive connecting lines and lower conductive connecting lines are respectively connected to the positive and negative terminals of an external power supply.

[0018] Compared with the prior art, the close-packed electrostatic motor based on rotor packaging described in this utility model has the following advantages: 1. This application introduces a radially densely packed conductive blade and a fan-shaped dielectric module integrated encapsulation structure into the rotor module, enabling the rotor blades to be densely distributed within a limited space. Compared with the traditional circumferential arrangement, the total charged area is significantly increased. The fan-shaped area formed between adjacent blades is filled by the dielectric module. The dielectric module is made of a high-dielectric insulating material with a dielectric constant greater than that of air, which effectively expands the equivalent plate area between the rotor and the stator and increases the capacitance value, thereby enhancing the electrostatic drive torque output. This design uses a thin-walled encapsulation to confine the dielectric material in an independent cavity to prevent leakage or displacement during rotation, ensuring the uniformity of dielectric filling and the stability of the capacitance environment. At the same time, the dielectric filling range can be flexibly designed in the axial and radial directions to adapt to different power density requirements and lightweight design, achieving the optimization of structural adjustability and space utilization. This allows the motor to maintain a compact size while having stronger electrical energy carrying capacity and mechanical stability.

[0019] 2. During operation, the electrostatic motor described in this application forms a periodically alternating electrostatic driving electric field by alternately connecting the stator blades to the positive and negative terminals of an external high-voltage power supply. The rotor blades and stator blades spatially constitute an equivalent parallel-plate capacitor system. The dielectric module between adjacent rotor blades serves as a high-dielectric region, effectively increasing the equivalent capacitance value. Under the action of the brush assembly, charge is rapidly transferred from the stator blades to the rotor blades. The charged rotor blades are driven to rotate by Coulomb torque in the electric field. As the rotor blades periodically pass through stator regions of different polarities, the charge is continuously renewed, thereby maintaining the continuous rotation of the rotor. Throughout the process, the high-dielectric medium significantly improves the energy conversion efficiency of the electric field, while the encapsulation structure maintains the long-term stability of the capacitor environment. Combined with the annular rotor frame and uniform array blade arrangement, force balance and rotational balance are ensured, realizing a continuous and coordinated process of charge transfer, electric field action, and mechanical output. This allows the electrostatic drive system to obtain high output power and stable operation at a relatively low voltage.

[0020] 3. This application achieves significant improvements in power density, operating efficiency, and stability of electrostatic motors through a system combination design of close-packed packaging, dielectric reinforcement, and modular stator structure. The high-dielectric packaging structure of the rotor module enhances its charging capability, while the symmetrical clamping frame and grouped interconnection structure of the stator module ensure uniform electric field and stable power supply. The brush-type charge transfer component reduces energy loss and improves response speed. The overall design balances high output and long-life operation requirements. The introduction of high-dielectric dielectric increases the breakdown voltage, allowing for higher operating electric field strength, while enhancing the rotational inertia of the rotor module to provide better energy balance characteristics, further improving system energy efficiency and stability. This design achieves comprehensive performance optimization of low power consumption, high output, low noise, and high reliability while maintaining a compact structure, providing high-performance technical support for the application of electrostatic motors in fields such as micro-drive, precision control, and special energy conversion. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of a disc-shaped electrostatic motor in the prior art; Figure 2 This is a schematic diagram of the structure of a DC cylindrical electrostatic motor in the prior art; Figure 3 This is a schematic diagram of the close-packed electrostatic motor structure described in the embodiments of this application; Figure 4 This is a schematic diagram of the equivalent capacitance of the rotor blades during charging in the close-packed electrostatic motor described in the embodiments of this application; Figure 5 This is a schematic diagram of the close-packed electrostatic motor structure based on rotor packaging described in an embodiment of this application; Figure 6 This is a side view structural diagram of the static submodule described in the embodiments of this application; Figure 7This is an exploded structural diagram of the static submodule described in the embodiments of this application; Figure 8 This is a top view of the rotor module described in an embodiment of this application. Figure 9 This is a cross-sectional structural diagram of the rotor module described in the embodiment of this application; Figure 10 for Figure 9 The enlarged structural diagram of a portion of the encapsulated cavity shown in the figure; The markings in the diagram are as follows: 1-Rotor module; 101-Rotor blade; 102-Rotor frame; 103-Dielectric module; 1031-Encapsulation thin wall; 1032-Encapsulation cavity; 2-Stator module; 201-Stator blade; 202-Stator frame; 202a-Upper support frame; 202b-Lower support frame; 202c-Upper spoke support rod; 202d-Lower spoke support rod; 202e-First mounting part; 202f-Second mounting part; 203-Charge transfer assembly; 204-Stator connection; 204a-Upper conductive connection; 204b-Lower conductive connection; 3-Output module. Detailed Implementation

[0022] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0023] It should be noted that all directional and positional terms used in this utility model, such as "up," "down," "left," "right," "front," "back," "vertical," "horizontal," "inner," "outer," "top," "lower," "lateral," "longitudinal," and "center," are only used to explain the relative positional relationships and connection arrangements between components in a specific state (as shown in the accompanying drawings). They are merely for the convenience of describing this utility model and do not require that this utility model be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this utility model. Furthermore, descriptions involving "first," "second," etc., in this utility model are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated.

[0024] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0026] like Figures 3-10 As shown, this application discloses a close-packed electrostatic motor based on rotor packaging, comprising: The rotor module 1 includes a plurality of rotor blades 101 arranged radially close together along the rotating circular surface and a rotor frame 102 for supporting the rotor blades 101. A medium module 103 is provided in the region of adjacent rotor blades 101 in the rotor module 1. The medium module 103 is fixedly connected to the rotor module 1 and rotates synchronously with the rotor module 1. The stator module 2 includes stator blades 201 and stator frame 202. The stator blades 201 are supported and fixed on the stator frame 202 and are alternately connected to the positive and negative terminals of an external power source to form an electrostatic driving electric field between the stator module 2 and the rotor module 1. Output module 3 is connected to rotor module 1 for transmitting the rotational motion of rotor module 1 as mechanical energy. The dielectric module 103 is an insulating medium with a preset dielectric constant, and the relative dielectric constant of the insulating medium is greater than that of air.

[0027] This application discloses a rotor-encapsulated close-packed electrostatic motor, comprising a rotor module 1, a stator module 2, and an output module 3. The rotor module 1, as the core motion component, includes multiple conductive rotor blades 101 arranged radially along a rotating surface and a rotor frame 102 supporting and fixing the rotor blades 101. The rotor blades 101 are arranged radially along the rotating surface of the rotor module 1 and uniformly arranged circumferentially, extending vertically along the radial direction of the rotating surface. This significantly increases the number of rotor blades 101 and the total charged area per unit volume compared to traditional circumferential arrangements, thereby achieving higher output torque and power density within the same dimensions. A fan-shaped gap area is naturally formed between adjacent rotor blades 101, and a dielectric module 103 is disposed therein. The dielectric module 103 is integrally fixed to the rotor blades 101 or the rotor frame 102 to form an encapsulated structure, and has no relative displacement with respect to the rotor blades 101 during rotation. The stator module 2 consists of multiple stator blades 201 alternately connected to the positive and negative terminals of a high-voltage power supply and a positioning... The motor consists of a stator frame 202 and an output module 3 connected to the rotor module 1, which transfers the rotational energy of the rotor module 1 into mechanical output. The dielectric module is made of an insulating dielectric material with a relative permittivity greater than that of air, such as a high-dielectric-constant solid, liquid, or composite dielectric, to replace the traditional air dielectric region and improve the equivalent capacitance value. The working principle of the motor is based on the capacitive coupling drive effect under the action of an electrostatic field. A stable electrostatic drive electric field is established between the stator blades 201 and the rotor blades 101 by alternating positive and negative poles. The rotor blades 101 and the stator blades 201 form an equivalent parallel plate capacitor system in space. After the rotor blades 101 are charged by brushes or corona discharge, they are driven to rotate by a tangential Coulomb torque under the action of the electric field. Because the rotor blades 101 are densely packed radially with a very small spacing, the facing area between the stator and rotor is significantly increased. At the same time, the dielectric module 103 set in the fan-shaped gap between the rotor blades 101 provides a dielectric environment with a high dielectric constant. According to the capacitance calculation formula C=ε0ε r From S / d, we can know the dielectric constant ε r The increase in the value of the equivalent capacitance C and the expansion of the area S of the electrode plate will directly increase the rotor charge Q=CU, so that under the same applied voltage conditions, the rotor blade 101 can carry more charge and generate a greater electrostatic force. Under the continuous force action of the charged rotor blade 101 in the electrostatic field, the rotor module 1 drives the rotor module 1 to rotate around the axis. The output module 3 converts the rotational motion into mechanical work output. The whole system relies on the mutual conversion process of electrostatic field and capacitance to realize the continuous transfer of electrical energy to mechanical energy.

[0028] The rotor-encapsulated close-packed electrostatic motor described in this application significantly improves space utilization and energy conversion efficiency through the radial close-packing arrangement of rotor blades 101 and dielectric encapsulation design, achieving a dual improvement in charged area and charged capacity per unit volume. In addition, the dielectric module 103 and the rotor module 1 are encapsulated into an integrated structure, with no relative movement during the rotation of the rotor module 1, avoiding dielectric displacement or leakage problems, ensuring stable capacitor performance, thereby improving the continuity and reliability of motor operation. At the same time, the high dielectric constant dielectric has a high breakdown strength, allowing for higher operating voltage input to further improve output performance. Furthermore, the uniform dielectric mass distribution increases the rotational inertia of the rotor module 1, enabling the rotor to maintain stable rotation within the energized gap, exhibiting energy storage and output balance characteristics. Overall, it achieves comprehensive performance optimization of the electrostatic motor in terms of small size, high output, high stability, and long service life.

[0029] In some examples of this application, the insulating medium is any one of a solid medium, a liquid medium, or a powdered medium. The close-packed electrostatic motor based on rotor packaging described in this application introduces a high-dielectric-constant insulating medium filling design in the rotor module 1. The insulating medium is not limited to a specific type or texture; solid, liquid, or powdered media can be selected according to different application requirements. The key is that its relative dielectric constant must be greater than that of air to significantly enhance the capacitance effect. When using a solid medium, it is suitable for scenarios with high structural stability requirements. Solid media such as barium titanate ceramics, high-dielectric-constant epoxy resins, or alumina ceramics all possess excellent dielectric properties and mechanical strength, maintaining dielectric stability and providing continuous high capacitance support during long-term operation. Among these, barium titanate ceramics are the preferred option due to their high dielectric constant and high breakdown strength. When using liquid media such as insulating oil or high-dielectric-constant silicon… When oil is used, it is suitable for applications requiring uniform filling of rotor blade gaps or complex geometries. The high fluidity of the liquid medium can fully cover the fan-shaped gaps and avoid medium voids. When using powdered media such as barium titanate powder or titanium dioxide powder, it is suitable for confined spaces or miniaturized motors. The fine particles of the powdered medium can achieve high-density filling and keep the medium layer stable and non-displaced. Regardless of the medium form, it is fixedly connected to the rotor module to form an encapsulated whole. There will be no loosening or leakage during rotor rotation, ensuring the long-term stability of the electrical and spatial structure of the medium layer. This, together with the closely packed blade structure, improves the uniformity of the electrostatic field, the charged area, and the energy utilization efficiency, ensuring that the motor maintains stable electrostatic force output and efficient energy transfer under continuous operation.

[0030] In some examples of this application, the rotor frame 102 is arranged in a circular or flat shape, and a plurality of rotor blades 101 are arranged in a uniform array in a radial pattern on the rotor frame 102. A medium module 103 is provided in the fan-shaped area of ​​two adjacent rotor blades 101. The two opposite sides of the medium module 103 in the rotation direction are connected to the two adjacent rotor blades 101, and the arcs on both sides in the radial direction are flush with the arcs at the ends of the rotor blades 101. In the example of this application, a circular or flat rotor frame 102 is used in conjunction with radially arrayed rotor blades 101 and a matching medium module 103. The rotor frame 102 adopts a circular or flat integral structure, which enables it to achieve a high-precision coaxial connection with the output shaft of the output module 3, ensuring overall rotational balance and structural rigidity. Multiple rotor blades 101 are evenly arrayed from the center outward in a circumferential radial pattern, so that the torque direction of each rotor blade 101 in the electrostatic field is evenly distributed, thereby effectively reducing eccentric force and vibration, ensuring the rotational stability and dynamic balance of the rotor module 1. The medium module 103 is set in the fan-shaped gap area formed between the rotor blades 101, and the medium module 103 is located on opposite sides of the rotation direction. The media module 103 is tightly connected to two adjacent rotor blades 101, and the arc edges on both sides of its radial sides are flush with the outer arc of the adjacent rotor blades 101, forming an almost seamless fan-shaped encapsulation structure. This design allows the media module 103 to be highly adapted to the shape of the rotor blades 101 after installation, avoiding media displacement or vibration caused by centrifugal force during rotation. At the same time, the flat design of the rotor frame 102 also provides a fixed support surface for the media module 103, so that the media module 103 can rotate with the rotor module 1 as a whole without falling off. The filling of solid or liquid media forms a continuous media layer, ensuring that the media space is sealed and stable, thereby maintaining a uniform capacitance media environment during rotation, providing a stable electric field basis for electrostatic drive, and realizing efficient energy conversion and continuous driving force output.

[0031] In some examples of this application, the medium module 103 includes a thin-walled enclosure 1031. The thin-walled enclosure 1031, together with the rotor frame 102 and the rotor blades 101, forms several independent encapsulation cavities 1032. Each encapsulation cavity 1032 is filled with a liquid or powdered insulating medium material. In the examples of this application, to address the problem of liquid or powdered insulating media easily flowing, accumulating, or leaking during rotation, this application designs a thin-walled enclosure 1031 structure in the medium module 103. This thin-walled enclosure 1031, together with the rotor frame 102 and multiple radially arranged rotor blades 101, forms several independent encapsulation cavities 1032. Each encapsulation cavity 1032 is individually filled with a portion of liquid or powdered insulating medium, so that the medium is stably confined in a closed space, as if it were separated into multiple independent chambers, thereby preventing the medium from overflowing or shifting outward due to centrifugal force during rotation. The presence of the thin-walled enclosure 1031 ensures both... This design ensures the stability of the dielectric morphology and distribution, and provides additional structural support for the rotor blades 101, thereby improving the overall strength of the rotor module 1. It maintains structural integrity and balance even during high-speed motor operation. The independent cavity design allows for flexible selection of the dielectric type according to different application requirements. Whether it's highly fluid insulating oil or silicone oil, or granular barium titanate powder, the thin-walled encapsulation 1031 effectively constrains and evenly distributes the dielectric, ensuring a physically tight bond between the dielectric modules and maintaining high dielectric properties electrically. This creates a stable, uniform, and high-dielectric-constant working environment between the rotor blades, providing more reliable capacitive support for electrostatic drive. In some examples of this application, the thickness of the encapsulation thin-walled 1031 is 0.1mm-1mm.

[0032] In some examples of this application, the filling height of the medium module 103 in the axial direction of the rotor module 1 is lower or higher than the axial height of the rotor blade 101, and / or, the filling range of the medium module 103 in the radial direction of the rotor module is less than or greater than the radial extension range of the rotor blade 101. In the examples of this application, by designing the filling range of the medium module 103 with extreme flexibility, the filling amount of the medium in both the axial and radial directions can be flexibly designed to adapt to different application scenarios. In the axial direction, the filling height of the medium module 103 can be set to 1 / 2 to 1 times the height of the rotor blade, or moderately exceeding it by 0.5mm to 2mm. This design allows users to flexibly adjust according to actual needs. For example, in scenarios sensitive to motor weight, a medium filling to half the height can be selected, which can improve dielectric performance without increasing rotor weight and affecting rotational efficiency due to excessive medium, allowing the motor to achieve lightweight adjustment while meeting dielectric performance requirements. If higher motor output torque is required, the medium can also be made to exceed the axial height... The rotor blade 101 is positioned at a point to increase the effective dielectric area and thus improve the equivalent capacitance. In the radial direction, the filling range of the dielectric module 103 can be selected to not exceed the radial extension range of the rotor blade 101, or it can be flush with or slightly exceed it by 0.2mm to 1mm. Thus, in miniaturized motor applications, the design of the dielectric not exceeding the radial range can effectively save space. In applications with high capacitance performance requirements, the design of the dielectric slightly exceeding the radial range can be adopted to increase the radial dielectric area and further improve the equivalent capacitance. This dual-dimensional optimizable filling method gives the dielectric module a high degree of design freedom, which can be finely configured under different power densities, speeds and energy consumption requirements, so that the motor can be adapted to more different application scenarios.

[0033] As a preferred example of this application, a charge transfer component 203 is provided on the stator blade 201 for charge exchange between the stator blade 201 and the rotor blade 101. In this example, the charge transfer component 203 is a brush structure, installed between the stator blade 201 and the rotor blade 101, and can continuously contact or be in near-contact with the rotor blade 101 when the rotor blade 101 rotates at high speed, ensuring smooth charge transfer between the two.

[0034] As a preferred example of this application, the stator frame 202 includes an upper support frame 202a and a lower support frame 202b, which are arranged vertically opposite to each other. The stator blades 201 are sandwiched between the upper support frame 202a and the lower support frame 202b and are evenly distributed in a circumferential direction. In the example of this application, the stator module 2 adopts a symmetrical sandwich design, with the upper support frame 202a and the lower support frame 202b parallel to each other and arranged vertically opposite to each other. The stator blades 201 are precisely sandwiched between the two and are evenly distributed in a circumferential direction to form a regular array. This design allows the stator blades 201 to maintain a stable spatial position during long-term operation of the motor, thereby ensuring a consistent gap between the stator and the rotor and maintaining a stable electric field distribution.

[0035] As a preferred example of this application, the upper support frame 202a and the lower support frame 202b are both arranged in a ring. The upper support frame 202a has a plurality of upper spoke support rods 202c on its inner side. The plurality of upper spoke support rods 202c converge at the center to form a first mounting part 202e. The lower support frame 202b has a plurality of lower spoke support rods 202d on its inner side. The plurality of lower spoke support rods 202d converge at the center to form a second mounting part 202f. The first mounting part 202e and the second mounting part 202f are rotatably connected to the output module 3. In the example of this application, the stator frame 202 adopts a composite design of a ring-shaped support frame connected to a central spoke. Both the upper support frame 202a and the lower support frame 202b are arranged in a closed ring, serving as the upper and lower mounting bases for the stator blade 201, respectively. Multiple spoke support rods are arranged inside both frames, extending from the inner wall towards the center and converging at the middle to form the first mounting part 202e and the second mounting part 202f, respectively. The overall structure resembles a double-layered radial skeleton, providing rigid support and symmetrical positioning for the stator blade 201, ensuring that the stator blade 201 maintains spatial symmetry and positioning during assembly and operation. To ensure precise positioning and prevent uneven electric field caused by stator blade misalignment, skewness, or vibration, the first mounting part 202e and the second mounting part 202f in the center serve as the precise positioning basis for the rotating bearing of the output module 3, ensuring the coaxiality between the output module 3 and the rotor module 1, thereby making the rotor rotate more smoothly and the energy transfer efficiency higher. This structure achieves precise fixing of the stator blade 201 while taking into account mechanical support and structural symmetry, providing a high-rigidity, low-deviation frame foundation for the stable operation of the motor, effectively reducing energy loss and noise caused by uneven structural stress, and improving the overall operational reliability and mechanical integrity of the machine.

[0036] As a preferred example of this application, a stator connection 204 is provided on the stator frame 202. The stator connection 204 includes an upper conductive connection 204a and a lower conductive connection 204b, which are used to connect a number of stator blades 201 at intervals and of the same polarity to form a positive electrode group and a negative electrode group, respectively. The upper conductive connection 204a and the lower conductive connection 204b are respectively connected to the positive and negative terminals of an external power supply. In the example of this application, a stator connection 204, consisting of an upper conductive connection 204a and a lower conductive connection 204b, is provided on the stator frame 202. The upper conductive connection 204a and the lower conductive connection 204 are respectively provided on the upper support frame 202a and the lower support frame 202b, and are respectively connected to the positive and negative terminals of the external power supply, forming a ring-shaped staggered power supply system. This makes the stator module 2 present a periodic alternating polarity distribution, with opposite polarities between adjacent stator blades 201, thereby constructing a stable periodic electric field in the circumferential direction. This ensures that each pair of adjacent blades can form a complete potential difference driving area. At the same time, the modular form of grouped connection simplifies the assembly process. Only two sets of main power lines need to be connected to complete the power supply system connection. There is no need to confirm the polarity of each blade, which improves the assembly consistency and maintenance convenience. It also provides a flexible wiring basis for the subsequent miniaturization and multi-pole structure design of the motor.

[0037] This application discloses a rotor-encapsulated close-packed electrostatic motor. By employing a rotor module with rotor blades 102 arranged radially along the rotating surface and high-dielectric-constant dielectric modules 103 between adjacent rotor blades 102 to form an integrated package, the number of rotor blades 102 and the total charged area are significantly increased within the same space. Simultaneously, the dielectric modules 103 have a higher dielectric constant and breakdown strength than air, enabling higher equivalent capacitance and charge under limited voltage, thereby significantly improving the motor's output torque and power density. This design uses a thin-walled encapsulation 1031 to stably confine the liquid or powder medium within an independent cavity, ensuring that the medium does not shift or leak during rotation, and that the electric field environment remains stable and reliable. Combined with selectable axial and radial filling ranges, different power densities and lightweight designs can be achieved. The flexible design addresses various needs. The rotor frame 102 adopts a circular or flat support structure, combined with a radial rotor blade array 102 to ensure dynamic balance and uniform torque distribution. The stator module 2 uses upper and lower support frames and spoke support rods to form a symmetrical positioning structure, ensuring consistent spacing between stator blades 201 and uniform electric field distribution. The stator connecting lines 204 are grouped to form positive and negative electrode groups, constructing a periodically alternating electric field driving region. The brush-type charge transfer component 203 achieves efficient contact conduction, reduces charge loss, and enables the motor to continuously output stable power. The overall solution achieves a comprehensive improvement in space utilization, charging capacity, electric field strength, and mechanical stability while maintaining a compact structure. It provides a systematic breakthrough in structure and performance for the application of electrostatic motors in high power density, high stability, and long life operation scenarios.

[0038] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A close-packed electrostatic motor based on rotor packaging, characterized in that, include: The rotor module (1) includes multiple rotor blades (101) arranged radially close together along the rotating circular surface and a rotor frame (102) for supporting the rotor blades (101). A medium module (103) is provided in the area of ​​adjacent rotor blades (101) in the rotor module (1). The medium module (103) is fixedly connected to the rotor module (1) and rotates synchronously with the rotor module (1). The stator module (2) includes stator blades (201) and stator frame (202). The stator blades (201) are supported and fixed on the stator frame (202) and alternately connected to the positive and negative terminals of an external power source to form an electrostatic driving electric field between the stator module (2) and the rotor module (1). The output module (3) is connected to the rotor module (1) for transmitting the rotational motion of the rotor module (1) as mechanical energy. The dielectric module (103) is an insulating medium with a preset dielectric constant, and the relative dielectric constant of the insulating medium is greater than that of air.

2. The close-packed electrostatic motor based on rotor packaging according to claim 1, characterized in that, The insulating medium can be any one of a solid medium, a liquid medium, or a powdered medium.

3. The close-packed electrostatic motor based on rotor packaging according to claim 1 or 2, characterized in that, The rotor frame (102) is arranged in a circular or flat shape, and a plurality of rotor blades (101) are arranged in a uniform array in a radial pattern on the rotor frame (102). The medium module (103) is arranged in the fan-shaped area of ​​two adjacent rotor blades (101), and the two opposite sides of the medium module (103) in the rotation direction are connected to the two adjacent rotor blades (101).

4. The close-packed electrostatic motor based on rotor packaging according to claim 3, characterized in that, The radial arcs on both sides of the medium module (103) are flush with the arcs at the ends of the rotor blades (101).

5. The close-packed electrostatic motor based on rotor packaging according to claim 3, characterized in that, The filling height of the medium module (103) in the axial direction of the rotor module (1) is lower or higher than the axial height of the rotor blade (101), and / or the filling range of the medium module (103) in the radial direction of the rotor module is less than or greater than the radial extension range of the rotor blade (101).

6. The close-packed electrostatic motor based on rotor packaging according to claim 4 or 5, characterized in that, The medium module (103) includes a thin-walled enclosure (1031), which together with the rotor frame (102) and the rotor blades (101) form a number of independent encapsulation cavities (1032), each of which is filled with liquid or powdered insulating medium material.

7. The close-packed electrostatic motor based on rotor packaging according to claim 6, characterized in that, A charge transfer assembly (203) is provided on the stator blade (201) for charge exchange between the stator blade (201) and the rotor blade (101).

8. The close-packed electrostatic motor based on rotor packaging according to claim 7, characterized in that, The stator frame (202) includes an upper support frame (202a) and a lower support frame (202b), which are arranged opposite each other vertically. The stator blades (201) are sandwiched between the upper support frame (202a) and the lower support frame (202b) and are evenly distributed in a circumferential direction.

9. The close-packed electrostatic motor based on rotor packaging according to claim 8, characterized in that, The upper support frame (202a) and the lower support frame (202b) are both arranged in a ring. The upper support frame (202a) has multiple upper spoke support rods (202c) on its inner side. The multiple upper spoke support rods (202c) converge at the center to form a first mounting part (202e). The lower support frame (202b) has multiple lower spoke support rods (202d) on its inner side. The multiple lower spoke support rods (202d) converge at the center to form a second mounting part (202f). The first mounting part (202e) and the second mounting part (202f) are rotatably connected to the output module (3).

10. The close-packed electrostatic motor based on rotor packaging according to claim 1 or 9, characterized in that, A stator connection line (204) is provided on the stator frame (202). The stator connection line (204) includes an upper conductive connection line (204a) and a lower conductive connection line (204b), which are used to connect a number of stator blades (201) at intervals and of the same polarity to form a positive electrode group and a negative electrode group, respectively. The upper conductive connection line (204a) and the lower conductive connection line (204b) are respectively connected to the positive and negative terminals of an external power supply.

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