Electrostatic force motor

Abstract

The utility model belongs to the technical field of motors, and particularly relates to an electrostatic force motor which comprises a stator and a rotor, the stator comprises a shell and stator pole pieces which are uniformly distributed on the inner wall of the shell in the circumferential direction, rotor pole pieces which are uniformly distributed in the circumferential direction are arranged outside the rotor, and the number of the rotor pole pieces is equal to that of the stator pole pieces; and after the rotor rotates through a central angle formed by the adjacent stator pole pieces, all the rotor pole pieces are subjected to primary positive and negative pole conversion. The electrostatic force motor is adopted, electrostatic force generated between electric fields is utilized to drive the shaft to rotate, and no current passes through the whole process, so that heat loss generated by the current does not exist, and the energy utilization rate is remarkably improved.

Description

Technical Field

[0001] The utility model relates to an electrostatic force motor, belonging to the technical field of electric motors. Background Art

[0002] At present, both AC motors and DC motors work based on the principle of electromagnetic induction. Specifically, the current passes through the coil to generate a magnetic field, and the stator and rotor in the motor interact with each other, using the Lorentz force or Ampere force to drive the rotor to rotate and achieve the output of mechanical energy.

[0003] However, not all electrical energy is effectively converted into mechanical energy in this process. Due to factors such as electromagnetic conversion and resistance in the circuit, there are problems with electromagnetic conversion efficiency and the problem that part of the electrical energy is converted into heat energy and lost during the current path (heat loss). It is mainly divided into: 1. Resistance loss: This refers to the heat generated when the current passes through the resistor in the motor winding. The magnitude of the resistance loss is proportional to the square of the current and is also proportional to the magnitude of the resistance. 2. Hysteresis loss: Hysteresis loss is the heat generated by the rotation and friction of the magnetic domains inside the ferromagnetic material when the magnetic field changes. This loss is particularly evident in AC motors because the magnetic field of AC motors is constantly changing. 3. Eddy current loss: Eddy current loss is the heat generated when the eddy currents are induced inside the conductor due to the change in the magnetic field, and these eddy currents flow inside the conductor. The magnitude of the eddy current loss is related to factors such as the frequency of the magnetic field change, the conductivity of the conductor, and the geometric shape of the conductor.

[0004] This heat not only causes the temperature of the motor to rise, but also causes large energy dissipation, resulting in low energy utilization. Utility Model Content

[0005] In view of the above deficiencies in the prior art, the technical problem to be solved by the utility model is: to provide an electrostatic force motor, which uses the electrostatic force generated between electric fields to drive the shaft to rotate as power output, has no current, does not generate heat loss, and improves energy utilization.

[0006] The electrostatic force motor described in the utility model comprises a stator and a rotor, wherein the stator comprises an outer shell and stator pole pieces uniformly distributed circumferentially on the inner wall thereof, and the rotor is provided with rotor pole pieces uniformly distributed circumferentially outside the rotor, and the number of the rotor pole pieces is equal to that of the stator pole pieces; both the stator pole pieces and the rotor pole pieces are arranged with positive and negative poles spaced apart, and after the rotor rotates through the central angle formed by adjacent stator pole pieces, all the rotor pole pieces undergo a positive and negative pole conversion.

[0007] The utility model utilizes the electrostatic principle that like poles repel each other and different poles attract each other between pole pieces on the stator and the rotor to drive the main shaft to rotate, thereby outputting power.

[0008] Among them, the stator pole pieces are connected to the stator power supply, the positive electrodes of all stator pole pieces are connected in parallel and commonly connected to the positive electrode of the stator power supply, and the negative electrodes of all stator pole pieces are connected in parallel and commonly connected to the negative electrode of the stator power supply, that is, a capacitor is generated between the stator pole pieces.

[0009] The rotor pole piece of the utility model performs positive and negative pole conversion through the brush and the commutator arranged at the end of the main shaft.

[0010] Among them, the number of pole plates of the commutator is equal to the number of stator pole segments or rotor pole segments, all rotor pole segments with the same polarity are connected in parallel and connected to the pole segments arranged at intervals in the commutator, so that after the rotor rotates through the central angle formed by adjacent stator pole segments, all rotor pole segments undergo a positive-negative conversion.

[0011] Preferably, an insulating layer is provided on the inner side of the shell.

[0012] Preferably, a magnetic shielding layer is provided inside the insulating layer.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. No current passing through, no heat loss: Traditional motors are based on the principle of electromagnetic induction. When current passes through the coil, it will generate resistance loss, hysteresis loss and eddy current loss, which will be converted into heat energy, resulting in increased motor temperature and low energy utilization. However, the utility model adopts an electrostatic force motor, which uses the electrostatic force generated between the electric field to drive the shaft to rotate. No current passes through the whole process, so there is no heat loss caused by the current, which significantly improves the energy utilization.

[0015] 2. High energy conversion efficiency: Due to the elimination of heat loss, the energy conversion efficiency of the electrostatic force motor of the utility model is much higher than that of the traditional motor. Almost all the input electrical energy is converted into mechanical energy output, realizing efficient energy utilization. In addition, there is no need to convert current into magnetic field like traditional motors, and the electrostatic field can be directly used to do work.

[0016] 3. Simple structure and easy maintenance: Compared with traditional motors, the structure of electrostatic force motors is simpler, reducing the complex components inside the motor, such as coils, etc. This not only reduces the manufacturing cost, but also makes the maintenance and maintenance of the motor easier. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the cross-sectional structure of the utility model;

[0018] Figure 2 It is a main structural schematic diagram of the utility model;

[0019] Figure 3 yes Figure 1 Sectional view of AA.

[0020] In the figure: 1. casing; 2. rotor; 3. main shaft; 4. stator pole piece; 5. rotor pole piece; 6. insulation layer; 7. magnetic shielding layer; 8. bearing; 9. brush; 10. commutator. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with specific embodiments.

[0022] However, the description of the present invention is merely an embodiment of structural and even functional description, and the scope of rights of the present invention is not limited by the embodiments described in the text.

[0023] For example, multiple embodiments may have multiple changes and multiple forms, and it should be understood that the scope of rights of the present utility model includes equivalents that can realize the technical idea.

[0024] like Figures 1 to 3 As shown, this embodiment is implemented by the following technical solutions: including a stator and a rotor 2, the rotor 2 is connected to the main shaft 3, the stator includes a housing 1, and the main shaft 3 is arranged on the housing 1 through a bearing 8. An insulating layer 6 is provided on the inner side of the housing 1, and a magnetic shielding layer 7 is provided on the inner side of the insulating layer 6. Stator pole pieces 4 are evenly distributed circumferentially on the inner wall of the magnetic shielding layer 7, and rotor pole pieces 5 are evenly distributed circumferentially on the outside of the rotor 2, and the number of rotor pole pieces 5 is equal to that of stator pole pieces 4; both the stator pole pieces 4 and the rotor pole pieces 5 are arranged with positive and negative poles at intervals.

[0025] The stator pole pieces are connected to the stator power supply, the positive electrodes of all stator pole pieces 4 are connected in parallel and connected to the positive electrode of the stator power supply, and the negative electrodes of all stator pole pieces 4 are connected in parallel and connected to the negative electrode of the stator power supply, that is, capacitance is generated between adjacent stator pole pieces 4.

[0026] The rotor pole piece 5 is connected to the rotor power supply, and the rotor pole piece 5 performs positive and negative polarity conversion through the brush 9 and the commutator 10 arranged at the end of the main shaft 3. The number of pole plates of the commutator 10 is equal to the number of stator pole pieces 4 or rotor pole pieces 5. All rotor pole pieces 5 with the same polarity are connected in parallel and connected to the pole pieces arranged at intervals of the commutator 10. After the rotor 2 rotates through the central angle formed by the adjacent stator pole pieces 4, all rotor pole pieces 5 perform a positive and negative polarity conversion.

[0027] The stator pole piece 4 and the rotor pole piece 5 are provided with a plurality of grooves which cooperate with each other, such as Figure 3 As shown, the stator pole piece 4 and the rotor pole piece 5 do not interfere with each other during rotation, and the rotor pole piece 5 can move along the shortest electric field line as much as possible, thereby improving the utilization rate of the electrostatic force.

[0028] The utility model utilizes Coulomb attraction and repulsion to rotate. Electrostatic force calculation formula: F = k (q1q2) / r 2 , where k = 9.0 × 10^9 N·m 2 / C2, that is, the force generated between two electrodes with a charge of 1 cubic meter at a distance of 1 meter is =9.0×10^9N.

[0029] In addition to using the commutator, the positive and negative pole conversion of the rotor pole piece can also use the H-bridge circuit. The H-bridge circuit can change the polarity of the driving load. A position gear is set at the end of the rotor shaft, and a Hall sensor is set outside the gear. The Hall sensor outputs a position signal to control the H-bridge circuit to convert the positive and negative poles. The main function of the Hall effect sensor is to identify the phase position information of the motor winding and convert it into an electrical signal. The driver obtains the rotor position information by reading the output level signal of the Hall element. The logic switch completes the correct commutation according to the rotor position information of the motor, and passes current to the corresponding winding of the motor to form an air gap rotating magnetic field to keep the motor running. Hall effect sensors are widely used to identify the relative position between the stator and rotor of the motor and realize the electronic commutation of the motor.

[0030] Of course, the above contents are only preferred embodiments of the present invention and cannot be considered to limit the scope of the embodiments of the present invention. The present invention is not limited to the above examples, and any equivalent changes and improvements made by ordinary technicians in the technical field within the essential scope of the present invention shall fall within the scope of the patent coverage of the present invention.

Claims

1. An electrostatic force motor, comprising a stator and a rotor (2), characterized in that: The stator comprises a housing (1) and stator pole pieces (4) uniformly distributed circumferentially on the inner wall thereof, and the rotor (2) is provided with rotor pole pieces (5) uniformly distributed circumferentially outside, and the number of the rotor pole pieces (5) is equal to that of the stator pole pieces (4); The stator pole pieces (4) and the rotor pole pieces (5) are arranged with positive and negative poles alternately, and after the rotor (2) rotates through the central angle formed by adjacent stator pole pieces (4), all rotor pole pieces (5) undergo a positive and negative pole conversion.

2. The electrostatic force motor according to claim 1, characterized in that: The positive electrodes of all stator pole pieces (4) are connected in parallel and are commonly connected to the positive electrode of the stator power supply, and the negative electrodes of all stator pole pieces (4) are connected in parallel and are commonly connected to the negative electrode of the stator power supply.

3. The electrostatic force motor according to claim 1 or 2, characterized in that: The rotor pole piece (5) performs positive and negative polarity conversion via a brush (9) and a commutator (10) arranged at the end of the main shaft (3).

4. The electrostatic force motor according to claim 3, characterized in that: The number of pole plates of the commutator (10) is equal to the number of stator pole pieces (4) or rotor pole pieces (5), and all rotor pole pieces (5) with the same polarity are connected in parallel and connected to the pole pieces of the commutator (10) arranged at intervals.

5. The electrostatic force motor according to claim 1, characterized in that: An insulating layer (6) is provided on the inner side of the shell (1).

6. The electrostatic force motor according to claim 5, characterized in that: A magnetic shielding layer (7) is provided inside the insulating layer (6).

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