Stacked multilayer direct-current electrostatic motor

Abstract

The invention relates to the technical field of motors, and provides a stacked multilayer direct-current electrostatic motor which comprises a shell and a single-stage structure assembly arranged in the shell, the single-stage structure assembly comprises a stator disc and a rotor disc, a plurality of first conducting strips are arranged on the stator disc, and a plurality of second conducting strips are arranged on the rotor disc. The first conducting strip can form alternate positive and negative electrodes through alternate power supply of a direct-current high-voltage power supply; and a plurality of second conducting strips are arranged on the rotor disc, and when the second conducting strips pass through the first conducting strips during rotation, the second conducting strips can carry charges the same as those of electrodes of the first conducting strips and move under the action of an electric field. According to the stacked multilayer direct-current electrostatic motor, the space utilization rate is greatly improved through the stacked multilayer layout, the charge bearing capacity and torque output are improved, the defect that a traditional columnar direct-current motor is insufficient in torque is overcome, meanwhile, the circuit structure is simplified through direct-current high-voltage driving, complex alternating-current signal control or a precise sensor is not needed, and the cost is reduced. And the manufacturing cost and the system complexity are reduced.

Description

Technical Field

[0001] The invention relates to the technical field of motors, and in particular to a stacked multi-layer direct current electrostatic motor. Background Art

[0002] As a device that realizes energy conversion based on electrostatic force, the research history of electrostatic motor can be traced back to the 18th century. Since Benjamin Franklin first proposed the concept of electrostatic motor, the technology has gone through a long laboratory exploration stage. In recent years, with the breakthrough of micro-electromechanical system (MEMS) technology, electrostatic motor has shown its unique value in the fields of micro-drive and precision control with its advantages of simple structure, fast response speed and great miniaturization potential.

[0003] Currently, mainstream electrostatic motor technology is mainly divided into two categories: DC electrostatic motor structure and AC electrostatic motor structure.

[0004] like Figure 1 The DC cylindrical electrostatic motor shown is a typical DC electrostatic motor structure. This type of motor is driven by high-voltage DC power. The structure is usually cylindrical, with the stator and rotor arranged axially. Its working principle relies on the charge interaction between the electrodes of the stator and the rotor, and drives the rotor to rotate through the electric field force. The driving method is simple, but its cylindrical structure leads to low space utilization, and the conductive area that can be arranged per unit volume is limited. Since the conductive area directly determines the charge carrying capacity and torque output, the driving torque of this type of motor is generally low, and it is difficult to meet the needs of high-load scenarios.

[0005] like Figure 2 The AC stacked electrostatic motor shown in the figure is a typical AC electrostatic motor structure. This type of motor is driven by high-voltage AC power. The structural design of stacking multiple layers of stators and rotor disks significantly improves the space utilization. Its working principle relies on the periodic action of the alternating electric field on the rotor conductive plates to achieve continuous rotation. The stacked design allows the conductive area to increase linearly with the number of layers, which can theoretically improve the torque output. However, this type of motor relies on complex AC signal control circuits, including precision position sensors and timing controllers, to ensure that the electrode switching is synchronized with the rotor movement. This not only increases the system complexity and manufacturing cost, but also reduces reliability and stability.

[0006] Therefore, existing electrostatic motor technology faces the difficulty of balancing space utilization and torque output, and the contradiction between drive mode and control complexity. These problems together make it difficult for electrostatic motors to break through the laboratory stage and achieve large-scale commercial applications. Technical personnel in this field urgently need to solve the above-mentioned technical pain points. Summary of the invention

[0007] In view of this, the present invention proposes a stacked multi-layer DC electrostatic motor, aiming to solve the technical problems of traditional electrostatic motors such as complex structure, limited efficiency improvement and single driving mode.

[0008] To achieve the above object, the technical solution of the present invention is achieved as follows:

[0009] A stacked multi-layer DC electrostatic motor, comprising:

[0010] A single-stage structural assembly includes a stator disc and a rotor disc, wherein the stator disc and the rotor disc are arranged in a stacked state;

[0011] A shell wrapped around the outside of the single-stage structural component;

[0012] A rotating shaft, the rotor disc is fixedly connected to the rotating shaft, and the stator disc is connected to the rotating shaft via a bearing;

[0013] A plurality of first conductive sheets are arranged on the stator disk. The first conductive sheets can form alternating positive and negative electrodes by alternately supplying power through a DC high-voltage power supply, and form an electric field between the positive and negative electrodes. A plurality of second conductive sheets are arranged on the rotor disk. When the second conductive sheets pass through the first conductive sheets during rotation, they can carry the same charge as the first conductive sheet electrodes and move under the action of the electric field.

[0014] Furthermore, a brush is arranged on each of the first conductive sheets.

[0015] Furthermore, the stator disc comprises a first insulating substrate, on which a plurality of first conductive sheets are evenly arranged, and the first conductive sheets form evenly and alternately arranged positive electrodes and negative electrodes when a DC high voltage power supply is connected.

[0016] Furthermore, the rotor disk comprises a second insulating substrate, on which a plurality of second conductive sheets are arranged at intervals, and the distribution density of the second conductive sheets is greater than the distribution density of the first conductive sheets on the stator disk.

[0017] Furthermore, a plurality of single-stage structural components are arranged in the shell, and the stator disks and rotor disks in the plurality of single-stage structural components are designed to be stacked in multiple layers.

[0018] Furthermore, an insulating dielectric liquid is arranged in the cavity in the housing to lubricate between the rotor disk and the stator disk and act as a dielectric liquid.

[0019] Furthermore, the insulating dielectric liquid is silicone oil.

[0020] Furthermore, air is filled between the rotor disk and the stator disk in the cavity within the housing.

[0021] Furthermore, the shapes of the first conductive sheets in the stator disk are the same or different, and the shapes of the second conductive sheets in the rotor disk are the same or different.

[0022] Furthermore, the shape of the first conductive sheet in the stator disk and the second conductive sheet in the rotor disk are the same or different.

[0023] Compared with the prior art, the stacked multilayer DC electrostatic motor described in the present invention has the following advantages:

[0024] (1) The stacked multi-layer DC electrostatic motor described in the present invention significantly improves space utilization and torque output by adopting the design of a stacked multi-layer DC electrostatic motor. The effective conductive area is increased by the structure of alternately stacked stator disks and rotor disks, so that the motor can generate greater torque under the same volume, meeting the needs of high-load applications.

[0025] (2) The stacked multilayer DC electrostatic motor described in the present invention adopts DC high voltage drive, which does not require complex AC signal control and precision sensors, reducing system complexity and manufacturing costs. The brush contact design ensures the real-time and stability of charge transfer, and improves the movement stability and response speed of the motor.

[0026] (3) The stacked multilayer DC electrostatic motor described in the present invention can optimize the performance of the motor to adapt to different application scenarios and requirements by adjusting the shape and layout of the conductive sheets and the selection of the filling medium, and has a high degree of flexibility and adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0028] Figure 1 It is a structural schematic diagram of a DC cylindrical electrostatic motor in the prior art;

[0029] Figure 2 It is a structural schematic diagram of an AC stacked multi-stage electrostatic motor in the prior art;

[0030] Figure 3 It is a schematic diagram of the structure of the stacked multi-layer DC electrostatic motor of the present invention;

[0031] Figure 4 It is a schematic cross-sectional structure diagram of the stacked multi-layer DC electrostatic motor of the present invention;

[0032] Figure 5 This is a schematic diagram of the structure in which the stator disks 4 and the rotor disks 5 are alternately arranged in the stacked multi-layer DC electrostatic motor of the present invention.

[0033] Figure 6 It is a structural schematic diagram of the stator disk in the stacked multi-layer DC electrostatic motor of the present invention;

[0034] Figure 7 It is a schematic structural diagram of the rotor disk in the stacked multi-layer DC electrostatic motor of the present invention;

[0035] Figure 8 It is a structural schematic diagram of a single-stage structural component in the stacked multi-layer DC electrostatic motor of the present invention;

[0036] Fig. 9 It is a schematic diagram of the brush arrangement structure in a single-stage structural component of the stacked multi-layer DC electrostatic motor of the present invention;

[0037] Fig.10 for Fig. 9 A partial enlarged structural diagram of the middle A part;

[0038] Fig.11 It is a front view structural schematic diagram of a single-stage structural component of the stacked multi-layer DC electrostatic motor of the present invention;

[0039] Description of reference numerals:

[0040] 1. Housing; 2. Rotating shaft; 3. Bearing; 4. Stator disk; 41. First insulating substrate; 42. First conductive sheet; 43. Positive electrode; 44. Negative electrode; 5. Rotor disk; 51. Second insulating substrate; 52. Second conductive sheet; 6. Cavity; 7. Single-stage structural assembly; 8. Brush. DETAILED DESCRIPTION

[0041] In order to make the technical means, objectives and effects of the present invention easy to understand, the embodiments of the present invention are described in detail below with reference to specific drawings.

[0042] It should be noted that all the terms used in the present invention for directional and positional indications, such as "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "inside", "outside", "top", "low", "lateral", "longitudinal", "center", etc., are only used to explain the relative positional relationship and connection status between the components in a certain state (as shown in the accompanying drawings), and are only for the convenience of describing the present invention, rather than requiring the present invention to be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the descriptions of "first", "second", etc. in the present invention are only used for descriptive purposes, and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features.

[0043] In the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0045] Existing electrostatic motor technology faces the difficult problem of balancing space utilization and torque output, as well as the contradiction between drive mode and control complexity. Due to the axial single-row structure, the traditional DC cylindrical electrostatic motor has a limited conductive area and insufficient torque output, making it difficult to meet the needs of high-load applications. At the same time, although the AC electrostatic motor improves space utilization through a stacked multi-layer design, it requires complex AC signal control and precision sensors, which not only increases system complexity and manufacturing costs, but also reduces reliability and stability. Therefore, in response to these technical pain points, a new motor design is urgently needed that can simplify the drive mode and control system while improving space utilization to achieve higher torque output and reliable power system operation.

[0046] The present invention discloses a stacked multilayer DC electrostatic motor, comprising:

[0047] The single-stage structural component 7 includes a stator disc 4 and a rotor disc 5, wherein the stator disc 4 and the rotor disc 5 are arranged in a stacked state;

[0048] A housing 1, wrapped around the outside of the single-stage structural component 7;

[0049] The rotating shaft 2, the rotor disc 5 is fixedly connected to the rotating shaft 2, and the stator disc 4 is connected to the rotating shaft 2 via a bearing 3;

[0050] A plurality of first conductive sheets 42 are arranged on the stator disk 4. The first conductive sheets 42 can form alternating positive and negative electrodes by alternately supplying power through a DC high-voltage power supply, and form an electric field between the positive and negative electrodes. A plurality of second conductive sheets 52 are arranged on the rotor disk 5. When the second conductive sheets 52 pass through the first conductive sheets 42 during rotation, they can carry the same charge as the electrodes of the first conductive sheets 42 and move under the action of the electric field.

[0051] The present invention discloses a stacked multi-layer DC electrostatic motor, such as Figures 3 to 11 As shown, energy conversion is achieved through the alternating stacking structure of the stator disk 4 and the rotor disk 5. A plurality of first conductive sheets 42 are distributed on the surface of the stator disk 4. Positive and negative voltages are alternately applied by a DC high-voltage power supply to form alternating positive and negative electrodes. In the example of the present application, the output voltage range of the high-voltage DC power supply is 1 kV to 50 kV, and the frequency range of the DC high-voltage power supply alternately applying positive and negative voltages is 100 Hz to 10 kHz, thereby establishing a stable electric field between adjacent electrodes. A second conductive sheet 52 is arranged on the surface of the rotor disk 5. When the rotor disk 5 rotates with the rotating shaft 2, the second conductive sheet 52 passes through the positive and negative electrode areas of the stator disk 4 in sequence. Under the action of brush contact or electric field induction, the second conductive sheet 52 is given the same charge as the current electrode, and then moves toward the opposite electrode direction driven by the electric field force. The polarity switching of adjacent electrodes is automatically achieved through the alternating power supply of the DC power supply, so that the second conductive sheet 52 is always pushed by the same electrostatic force when passing through electrodes of different polarities continuously, thereby forming a continuous rotational torque.

[0052] The stacked multi-layer DC electrostatic motor described in the present invention greatly improves space utilization through a stacked multi-layer layout, integrates more single-stage structural components 7 in the same volume, and each single-stage structural component 7 includes a layer of stator disk 4 and a layer of rotor disk 5, thereby doubling the effective conductive area, improving the charge carrying capacity and torque output, and solving the defect of insufficient torque of traditional cylindrical DC motors. At the same time, DC high-voltage drive is used to simplify the circuit structure, without the need for complex AC signal control or precision sensors, reducing manufacturing costs and system complexity, and ensuring the real-time and stability of charge transfer through the optimized design of brush contact and conductive sheet density, avoiding the driving force fluctuation caused by charge attenuation in traditional electrostatic motors.

[0053] As a preferred example of the present application, a brush 8 is provided on each of the first conductive sheets 42. The present invention provides a conductor brush 8 on each of the first conductive sheets 42 of the stator disk 4. When the rotor disk 5 rotates, the brush 8 periodically contacts the second conductive sheet 52 on the surface of the rotor disk 5, directly transferring the charge to the surface of the conductive sheet, so that it carries the same polarity as the current electrode of the stator disk 4. At this time, the adjacent electrodes of the stator disk 4 are alternately powered by a DC high-voltage power supply to form an electric field with a stable direction. The second conductive sheet 52 moves in the direction of the opposite electrode under the action of the electric field force. When the rotor disk 5 continues to rotate to make the second conductive sheet 52 enter the next electrode area, the brush 8 contacts again and imparts new charge. At the same time, the direction of the electric field is synchronously adjusted due to the switching of the electrode polarity, ensuring that the second conductive sheet 52 is always pushed by the same direction of electrostatic force to form a continuous rotation torque. The brush contact design of the present invention directly transfers charge through physical contact, ensuring that the charge of the conductive sheet is synchronized with the electrode polarity in real time, eliminating the driving force fluctuation caused by charge delay or induction error in traditional electrostatic motors, significantly improving motion stability and response speed, and at the same time, the arc or plane contact surface optimization design of the brush ensures the continuity and reliability of charge transfer during rotation, reducing contact resistance and energy loss. As other examples of the present application, the second conductive sheet 52 of the rotor disk 5 can also induce the same polarity charge when approaching the stator disk 4 electrode through electrostatic field induction or capacitive coupling effect without physical contact.

[0054] As a preferred example of the present application, the stator disk 4 includes a first insulating substrate 41, on which a plurality of first conductive sheets 42 are evenly arranged, and the first conductive sheets 42 form evenly alternately arranged positive electrodes 43 and negative electrodes 44 when a DC high voltage power supply is connected. The stator disk 4 of the present invention uses the first insulating substrate 41 as a supporting carrier, and evenly distributes a plurality of first conductive sheets 42 on its surface. The DC high voltage power supply alternately applies positive and negative voltages to adjacent conductive sheets to form regularly arranged positive electrodes 43 and negative electrodes 44 pairs, thereby generating a stable electric field with the same direction between adjacent electrodes. When the rotor disk 5 rotates with the rotating shaft 2, the second conductive sheets 52 on its surface enter the electrode area of ​​the stator disk 4 in turn, and quickly carry the same charge as the current electrode under the contact of the brush 8 or the induction of the electric field, and then move in the direction of the opposite electrode under the driving of the electric field force, and the alternating polarity distribution of the electrode is combined with the stable power supply mode of the DC power supply to ensure that the second conductive sheet 52 is always pushed by the electrostatic force in the same direction when it passes through electrodes of different polarities continuously. Through the above settings, the distribution of the electric field is optimized, so that a strong and uniform electric field can be generated in a small space, significantly improving the symmetry and stability of the electric field distribution, avoiding the problem of uneven driving force caused by electric field distortion in traditional electrode layout, thereby improving the stability of rotor movement and energy conversion efficiency. In addition, through the direct drive mode of the DC high-voltage power supply, the need for complex alternating signal control is eliminated, the complexity and power consumption of the circuit are reduced, thereby improving the reliability and economy of the entire motor system.

[0055] As a preferred example of the present application, the rotor disk 5 includes a second insulating substrate 51, on which a plurality of second conductive sheets 52 are arranged at intervals, and the distribution density of the second conductive sheets 52 is greater than the distribution density of the first conductive sheets 42 on the stator disk 4. Specifically, in the example of the present application, the second conductive sheets 52 are evenly spaced on the second insulating substrate 51, and compared with the first conductive sheets 42 on the stator disk 4, the distribution density of the second conductive sheets 52 is greater than that of the positive and negative electrodes, so that the second conductive sheets 52 are more effectively used as charge carriers, and continuously receive positive and negative charges during movement. The present application arranges a second conductive sheet 52 with a high density distribution on the second insulating substrate 51 of the rotor disk 5. When the rotor disk 5 rotates with the rotating shaft 2, the second conductive sheet 52 with a high density overlaps with the positive and negative electrode areas of the stator disk 4 more frequently, and quickly carries the same charge as the current electrode under the contact of the brush 8 or the induction of the electric field, and is then driven to move by the electrostatic force in the electric field formed by the adjacent opposite-sex electrodes. The high-density layout of the second conductive sheet 52 ensures that the charge switching can be completed quickly every time it enters a new electrode area, and the number of contacts with the electrodes of the stator disk 4 per unit time is doubled. The charge decay period is reduced and a stable driving force is maintained. At the same time, the stable support and uniform spacing design of the insulating substrate optimize the uniformity of the charge distribution and avoid motion jitter caused by uneven charge distribution, thereby greatly improving the smoothness of the motor operation and the energy conversion efficiency. Combined with the DC power supply mode of the alternating electrodes of the stator disk 4, each second conductive sheet 52 is always driven by the same direction of electric field force when it passes through electrodes of different polarities continuously. Finally, the efficient and continuous rotation of the rotor disk 5 is realized through high-frequency charge transfer and electric field action, achieving higher power density under the same volume and meeting the needs of high-load scenarios.

[0056] As a preferred example of the present application, a plurality of single-stage structural components 7 are arranged in the housing 1, and the stator disks 4 and rotor disks 5 in the plurality of single-stage structural components 7 are designed to be stacked in multiple layers. In the present application, by arranging a plurality of single-stage structural components 7 in the housing 1, it is possible to perform a high degree of integration in a limited space. Under the flexible permission of the processing technology, the stator disks 4 and rotor disks 5 of the single-stage structural components 7 can be stacked in multiple layers in the housing 1 according to specific application requirements to form different configurations to adapt to different operating environments and load requirements. By adopting a multi-layer stacking design, the present application significantly improves the space utilization of the system, enables more functional modules to be integrated in the same housing 1, increases the overall performance and flexibility of the equipment, and provides convenience for the expansion of the system. It only needs to increase or decrease the number of component layers to quickly adapt to different application requirements, making the system relatively simple during assembly and maintenance, reducing manufacturing costs, and saving maintenance costs and time.

[0057] As a preferred example of the present application, an insulating dielectric liquid or air is set in the cavity 6 in the housing 1. In the example of the present application, an insulating dielectric liquid is set in the cavity 6 in the housing 1 to meet the insulation and lubrication requirements of the motor during operation. Preferably, the insulating dielectric liquid filled between the rotor disk 5 and the stator disk 4 in the cavity 6 is silicone oil, which not only plays a lubricating role, reduces the wear and heat generation caused by friction, but also acts as an insulating dielectric liquid to ensure the safe operation of the motor under high voltage. When the rotor disk 5 rotates, the silicone oil can form an effective lubricating film, reduce the movement resistance of the rotor, and improve its rotation efficiency; at the same time, the dielectric properties of the silicone oil also help to suppress the breakdown phenomenon in the current path, further improving the stability and reliability of the motor.

[0058] This setting combines the functional design of lubrication and insulation by filling insulating dielectric liquid between the rotor disk 5 and the stator disk 4, so that the space between the rotor and the stator is reasonably utilized, the performance and life of the overall equipment are improved, and the efficient operation of the power system is ensured. In some application fields or application scenarios, air can also be filled between the rotor disk 5 and the stator disk 4 in the cavity 6, thereby reducing the weight of the equipment and reducing the material cost, so that it has more economic advantages.

[0059] As a preferred example of the present application, the shapes of the first conductive sheets 42 in the stator disk 4 are the same or different, and the shapes of the second conductive sheets 52 in the rotor disk 5 are the same or different.

[0060] As a preferred example of the present application, the first conductive sheet 42 in the stator disk 4 and the second conductive sheet 52 in the rotor disk 5 have the same or different shapes.

[0061] In the present application, the first conductive sheet 42 in the stator disk 4 and the second conductive sheet 52 in the rotor disk 5 can adjust their shapes according to different design requirements. The diversity of the conductive sheets allows the designer to improve the efficiency and reliability of the motor by changing the geometric shape, size and material of the conductive sheets according to the working conditions and expected performance of the motor. Whether it is a consistent shape or a different shape, the designer can optimize through this flexibility to adapt to the operation of the motor under different loads. By using conductive sheets of different shapes to optimize the current flow path and improve the conduction efficiency, it can also reduce the heat generation caused by inefficiency, thereby improving the safety and reliability of the motor, thereby achieving more efficient energy conversion and lower power loss.

[0062] The stacked multilayer DC electrostatic motor of the present invention has two most significant differences compared to the existing electrostatic motors:

[0063] (1) Compared with the existing cylindrical DC electrostatic motor, the stacked multi-layer DC electrostatic motor described in the present application can utilize space more effectively. By alternately stacking the stator disk and the rotor disk, the limitation of the axial single-row electrode of the traditional cylindrical DC motor is broken through, and the conductive contact area is multiplied in the same space, so that the rotor disk can carry more charge, thereby significantly improving the torque output driven by electrostatic force. At the same time, by filling with high dielectric constant insulating liquid (such as silicone oil) instead of traditional air medium, not only the pressure resistance between the electrodes is enhanced to avoid the risk of high-voltage breakdown, but also the insulating properties of the liquid medium are used to optimize the uniformity of the electric field distribution and reduce energy loss. The multi-layer stacking design further magnifies the advantages of space utilization and torque density, achieves high power density in a compact structure, solves the problem of insufficient torque caused by low space utilization of traditional cylindrical motors, and provides a more efficient drive solution for high-load scenarios.

[0064] (2) Compared with the existing AC electrostatic motor, the stacked multilayer DC electrostatic motor described in this application adopts a DC high-voltage drive mode, which is completely different from the driving principle of the existing AC electrostatic motor. At the same time, in the functional and structural design of the rotor disk 5 and the stator disk 4, this application abandons the design of the AC motor relying on complex alternating signal control. Through the alternating polarity arrangement of the stator disk electrodes and direct power supply of the DC power supply, the rotor disk automatically completes the charge switching and electric field direction adjustment during continuous rotation, without the need for additional configuration of precision sensors or high-frequency signal switching circuits, greatly simplifying the system architecture and reducing manufacturing costs. At the same time, the functional structures of the rotor disk and the stator disk are optimized for DC drive characteristics, such as high-density conductive sheet layout and brush contact charge transfer design, to ensure charge synchronization and driving force continuity, while the AC motor needs to rely on real-time position feedback and phase synchronization control, and its circuit complexity and stability requirements are higher. The present invention does not require complex circuit design and sensors, and only needs to pass high-voltage DC power to make the motor move. Through DC drive and structural innovation, it has significant advantages in reliability, cost control and maintenance convenience, providing a more economical and easy-to-promote technical path for the commercial application of electrostatic motors.

[0065] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A stacked multilayer DC electrostatic motor, characterized in that: include: A single-stage structural component (7) comprises a stator disc (4) and a rotor disc (5), wherein the stator disc (4) and the rotor disc (5) are arranged in a stacked state; A housing (1) wrapped around the outside of the single-stage structural component (7); A rotating shaft (2), the rotor disc (5) being fixedly connected to the rotating shaft (2), and the stator disc (4) being connected to the rotating shaft (2) via a bearing (3); A plurality of first conductive sheets (42) are arranged on the stator disk (4), and the first conductive sheets (42) are capable of forming alternating positive and negative electrodes by alternately supplying power through a DC high-voltage power supply, thereby forming an electric field between the positive and negative electrodes; a plurality of second conductive sheets (52) are arranged on the rotor disk (5), and when the second conductive sheets (52) pass through the first conductive sheets (42) during rotation, they are capable of carrying the same charge as the electrodes of the first conductive sheets (42) and moving under the action of the electric field.

2. The stacked multilayer DC electrostatic motor according to claim 1, characterized in that: A brush (8) is arranged on each of the first conductive sheets (42).

3. The stacked multilayer DC electrostatic motor according to claim 1, characterized in that: The stator disk (4) comprises a first insulating substrate (41), on which a plurality of first conductive sheets (42) are evenly arranged, and when a DC high-voltage power supply is connected, the first conductive sheets (42) form evenly and alternately arranged positive electrodes (43) and negative electrodes (44).

4. The stacked multilayer DC electrostatic motor according to claim 1, characterized in that: The rotor disk (5) comprises a second insulating substrate (51), on which a plurality of second conductive sheets (52) are arranged at intervals, and the distribution density of the second conductive sheets (52) is greater than the distribution density of the first conductive sheets (42) on the stator disk (4).

5. The stacked multilayer DC electrostatic motor according to claim 1, characterized in that: A plurality of single-stage structural components (7) are arranged in the housing (1), and the stator discs (4) and rotor discs (5) in the plurality of single-stage structural components (7) are designed to be stacked in multiple layers.

6. The stacked multi-layer DC electrostatic motor according to claim 1, characterized in that: An insulating dielectric liquid is arranged in a cavity (6) in the housing (1) to lubricate and act as a dielectric liquid between the rotor disk (5) and the stator disk (4).

7. The stacked multilayer DC electrostatic motor according to claim 6, characterized in that: The insulating dielectric liquid is silicone oil.

8. The stacked multilayer DC electrostatic motor according to claim 1, characterized in that: Air is filled between the rotor disk (5) and the stator disk (4) in the cavity (6) in the housing (1).

9. The stacked multilayer DC electrostatic motor according to claim 1, characterized in that: The shapes of the first conductive sheets (42) in the stator disk (4) are the same or different, and the shapes of the second conductive sheets (52) in the rotor disk (5) are the same or different.

10. The stacked multilayer DC electrostatic motor according to claim 1, characterized in that: The shape of the first conductive sheet (42) in the stator disk (4) and the second conductive sheet (52) in the rotor disk (5) are the same or different.

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