KR20030036630A - Electromotive mechanism - Google Patents

Abstract

A transmission mechanism is provided that includes a stator assembly and a rotor assembly. The stator assembly has a plurality of stator rings and an annular groove is formed around the stator ring. The rotor assembly can be disposed inside the annular groove and can be rotated therebetween. In a preferred embodiment, the stator assembly comprises a pound stator and the rotor assembly comprises a pound rotor.

Description

Electric mechanism {ELECTROMOTIVE MECHANISM}

The motor of the present invention is known as a two phase electric motor. A phase is generally an electric current pass that includes a power force (magnetic flux) and is electrically isolated and independent of all other windings contained in a typical powertrain. One aspect of the electrical machine described herein may consist of a stator or rotor winding in which the motor phases are electrically connected in series or in parallel because the rotor winding is excited via a slip ring. All windings contained in the stator or rotor are electrically insulated and thus can be excited independently of one another or provide electrical output. The wound rotor also removes the "magnetic polar dead band" associated with the permanent magnet rotors.

The slip ring provides a constant transfer of current through the rotor windings. Thus, the slip ring is not a communication device. The commuter is segmented and provides mechanical electrical switching of the current flow that changes the commutator segment or bar at each time. Thus, the present invention is classified as a brushless machine with dynamic rotor / motor capability. The electric machine design does not include mechanical commutators nor has magnetic properties left inside. Due to the even number of phases and symmetrical windings, two-phase motors generally appear unpredictable for motors. A feature of one embodiment of the present invention is to adopt the tendency to be a rotor that adapts to a position in a predetermined direction causing additional windings and the rotor to wind into and towards the stator winding side that is rotating and progressing. Is to implement a self bias configured by an offset close to the physical center of one or more windings.

Another feature according to one embodiment of the present invention is to introduce a rate of change of flux more than one rotor resulting in displacement of the rotor between the result and the balance due to the rotational direction created by the phase shift induced by driving electrons. will be.

An important aspect of the present invention is the ability to excite a rotor, stator or a combination of the two. Bipolar flux fields are created in each phase and these fields are alternately attracted and pulled. Both phases can be excited simultaneously via bipolar driver and attraction / repulsion for each. As a result, power losses are reduced and all windings use induction flux from beginning to end of each electric motor cycle.

Another important aspect of the present invention is that a permanent magnet structure is not necessary. The permanent magnet machine uses the magnetic energy of the permanent magnet component contained in the device to create a baseline for the magnetic flux level required to obtain the required torque / force by the uniform flux product produced by the electrical current flow in the windings. Designed and expressed on the basis of production. In addition, permanent magnets may exhibit reduced magnetic properties when exposed due to heating. Permanent magnets are also prone to magnetism when exposed to high flux fields of opposite polarity.

One aspect of the invention is not limited to rotating electric machines and may be applied to linear and partial rotating devices.

Another aspect of the present invention applies to cases such as induction motor rotors that use permanent magnets different from conventional electric machines or that are excited from field or stator windings, and the present invention facilitates independent excitation of each winding.

The novel aspect of the present invention does not require an activated winding to act or react with any pre-generated or calculated flux field. Rather, in a preferred embodiment, each phase in motor mode promotes induction torque / force because one phase acts on the other.

Another aspect of the invention facilitates the use of ironless or coreless windings. Alternatively, the use of iron cores or thin plates is not blocked in applications where magnetic flux direction and / or concentration is desired, for example in servomotor applications.

Another aspect of the invention does not require the so-called incorporation of inert segments in the preferred embodiment: rather, thanks to an improved efficiency and design that maximizes "copper fill" to eliminate all magnetic flux dead bands. to be. This design provides a high starting torque.

Another aspect of the preferred embodiment of the present invention is that the rotor windings rotate concentrically inside and outside the stator windings to improve starting torque and reduce physical inertia in order to reduce the total flux pass.

The present invention relates to an improvement of a two-phase AC electric motor, and more particularly to a variable speed of a two phase electric motor in which no permanent magnet rotor or stator is needed.

1 is a cross-sectional view of a preferred embodiment of a two-phase AC motor according to the present invention.

2 is a cross-sectional view of the motor of FIG. 1, cut along line 2-2 of FIG. 1.

Figure 3 is a photograph showing a perspective view of the stator and rotor windings of the motor shown in Figures 1 and 2.

4 is a photograph showing a front view of the winding of FIG. 3.

5 is a photograph showing a rear view of the winding of FIG. 3.

6 is a plan view of the slip ring and the brush of the motor of FIG.

7 is a schematic diagram of the polar orientation of the magnetic field generated by the stator windings.

8 is a schematic diagram of the polar orientation of the magnetic field generated by the rotor windings.

9 is a cross-sectional view of the rotor of the motor of FIG. 1.

10 is a cross-sectional view of the stator of the motor of FIG. 1.

11 is a perspective view of a winding with an additional number of turns for generating a magnetic bias for unidirectional starting of the motor.

12 is a front view of the winding of FIG. 11.

FIG. 13 is a rear view of the winding of FIG. 11.

14 is a schematic diagram of the anode flux field generated within each phase.

15 is an electrical schematic diagram showing stator and rotor windings connected in series.

16 is an electrical schematic diagram showing stator and rotor windings connected in parallel.

17 is an electrical schematic diagram showing each winding driven independently by a control circuit.

18 is a cross sectional view of a two-phase motor with four stators and four rotor windings.

19 is a cross-sectional view of a two-phase motor with six stator and six rotor windings.

20 is a front view of the winding of the pancake motor according to the present invention.

21 is a cross sectional view of a pancake motor.

22 is a cross sectional view of a motor with stator windings that magnetically connect the rotor from the orientation of the anode.

23A is a front view of a split stator assembly.

23B is a cross sectional view of the split stator assembly.

24A is a front view of the rotor assembly.

24B is a cross sectional view of the rotor end cap assembly.

25 is a front view of the rotor and stator assembly including additional unidirectional biasing coils.

FIG. 26 is a front view of a rotor and stator assembly including a pair of biasing coils for bidirectional rotation. FIG.

27 is a diagram illustrating an example in which the biasing of the rotor assembly is 30 degrees.

28 shows a 60 degree rotation of the rotor assembly.

FIG. 29 illustrates a 90 degree rotation of the rotor assembly. FIG.

30 is a wiring diagram for non-directional rotation of the rotor assembly.

31 is a wiring diagram to facilitate bidirectional rotation of the rotor assembly.

32 illustrates a coaxial field pattern generated in accordance with aspects of the present invention.

The transmission mechanism is provided including a stator assembly and a rotor assembly. The stator assembly consists of a plurality of stator rings and forms annular holes therebetween. The rotor assembly can be disposed within the annular opening, and rotatable therebetween. In a preferred embodiment the stator assembly comprises a winding stator and the rotor assembly comprises a winding rotor. The stator assembly includes a plurality of stator coils axially split and the rotor assembly includes a plurality of rotor coils axially split. The stator coil segment and the rotor coil segment can be arranged in correspondence with the opposite spatial relationship, and the rotor coil segment can be arranged substantially adjacent to the stator coil segment.

The stator coils and the rotor coils can be excited by a common switching signal from the switching circuit. The stator coils and the rotor coils can be arranged in series electrical connections or in parallel electrical connections.

The stator coil and the rotor coil can be excited to radiate a coaxial flux form therebetween, and operate to generate a rotational force for rotating the rotor assembly.

In the absence of a permanent magnetic core, or other iron core, the rotational force applied to the rotor will continue in almost the same direction, despite the relative position of the rotor relative to the excitation timing or coil excitation speed. As such, the rotational speed and position will be largely asynchronous with respect to the coil excitation.

In a preferred embodiment, the stator assembly can be formed to include a stator support member made of insulating material, wherein the stator coils are completely or partially sealed. The rotor assembly supports the rotor coil and includes a body of insulating material that partially or completely seals it.

The mechanism further includes a conductive cylindrical return member disposed in close contact with the stator assembly along the inner surface. The return member is secured relative to the stator assembly and operates to facilitate the return path.

The stator coils are connected to the stator coils and further comprise one or more biasing coils extending. The biasing coil stimulates the rotor / rotor coil at a position offset from the stator coil and operates to effect unidirectional or bidirectional rotation of the rotor assembly.

Other features of the present invention will become more apparent with reference to the drawings.

1, 2, 9 and 10, a two phase motor 20 comprises a cylindrical stator shell 21 and a cylindrical rotor shell 22. As shown in FIG. The stator 21 and the rotor 22 are machined from magnetic steel, such as an iron-cobalt alloy, which advantageously becomes hypercobalt. Alternatively, the stator or rotor can be made by lamination of steel sheets. Circular end plates 23 and slip ring stators 24 are fixed at or near the opposite ends of the rotor shell 22. The output shaft 25 is fixed to the center of this end plate 23 and the stator 24 concentric with the longitudinal axis of the shell 22.

Circular end plates 30, 31 attached to the stator shell 21 surround the opposite ends of the motor 20. The roller bearings 35, 36 are fixed to these end plates 30, 31 and the rotatable support output shaft 25 and the rotor shell 22 attached thereto, respectively.

3, 4 and 5 show the overall structure of the winding 40 used in the motor 20. In certain embodiments, a plurality of insulated copper wires 40 are wound in a generally elliptical configuration. This elliptical configuration is bent to match the radius of curvature of the stator 21 or rotor 22, depending on the part in which the coil is used. It will be appreciated that the preferred winding will be wound by a conventional device.

Important features of the preferred embodiment constructed in accordance with the invention are shown in the cross sectional views of FIGS. As shown, the maximum "copper fill" is provided in a predetermined area to provide additional windings in the cross section, which begins to increase torque and eliminates the magnetic flux vanishing band. The copper filling is further reinforced using copper wire with a square cross-sectional configuration to minimize the air gap between each winding. Ribbon wire is another example of a useful wire for the winding 40.

1 and 2, a pair of stator coils 40a and 40b are disposed facing and surrounding the inner wall of the stator 21. Similarly, a pair of rotor coils 40c and 40d are disposed opposite and surrounding the outer wall of the rotor 22. Advantageously, the stator 21 and coils 40a, 40b are permanently bonded to each other by casting them together using a thermosetting plastic resin. Likewise, rotor coils 40c and 40d are advantageously coupled to the outside of the rotor 22 using thermoset plastic.

An important feature of the present invention is that the stator and rotor windings can be excited independently. This is accomplished as shown in Figures 1, 6 and 9 by attaching the ends of the rotor coils to concentric slip rings 50, 51, 52 and 53. Thus, end leads 45a and 45b of rotor coil 40c are connected to slip rings 50 and 53, respectively. End leads 45c and 45d of the rotor coil 40d are connected to slip rings 51 and 52, respectively.

Slip rings 50 to 53 are continuous circles of copper or other conductive metals. Suitable brushes or other electrical contacts 60, 61, 62 and 63 are advantageously mounted on the stator end plate 31. Specific examples of slip rings and brushes are shown in FIG. 6. Slip rings and brushes are provided for continuous transfer of current to the rotor.

The operation of the motor described above is as follows. The magnetic field is created by passing alternating current through each stator and rotor electromagnetic coil. As shown in FIGS. 7 and 8, the magnetic return path is provided by the magnetic steel stator 21 and the rotor 22. Referring to Fig. 14, when alternating current is applied to the stator and rotor windings, bipolar flux fields are formed in each phase and these flux fields are alternately pushed and pulled. Motors constructed in accordance with a preferred embodiment have internal motor connections and windings that facilitate the ability for phase to be constructed by windings contained in both the stator and the rotor. For example, the rotor and stator windings can be connected such that one phase is induced by proper excitation of the stator windings alone and the other phase is induced by excitation of the rotor windings. The application of current to the rotor windings is achieved by slip rings. In one embodiment schematically shown in FIG. 15, stator winding 40A and rotor winding 40C are connected in series to alternating current source 75 via slip rings 50 and 53. Source 75 is also applied to stator winding 40B and rotor winding 40D via slip rings 51 and 52 via a phase shift circuit.

16 shows another embodiment in which the stator and rotor windings are connected in parallel.

If each winding is symmetrical, the two phase AC motor cannot predict the direction in which the motor starts to drive. In the coil embodiments of FIGS. 11, 12, and 13, the magnetic bias in one direction causes the physical of one or more windings 40 to induce a property that causes the rotor 22 to set a position to “power up” in a given direction. Provided by an additional wire turn 80 that is offset from the center.

In another embodiment shown in FIG. 17, each winding is independently excited such that the flux density formed by each winding is controlled independently. This control is preferably implemented using a stepper motor integrated circuit with an H bridge output stage that is typically used to provide precise speed control of two phase motors and to drive a stopper motor.

Another embodiment of the present invention shown in FIGS. 18 and 19 includes additional rotor and stator windings while maintaining two phase operating characteristics. Thus, the motor of FIG. 18 has four stators and four rotor windings, and the motor of FIG. 19 has six stator and six rotor windings.

Figures 20 and 21 show a "pancake" type two phase electric AC motor constructed in accordance with the present invention.

In each of the embodiments of Figures 18, 19, 20 and 21, each rotor winding is preferably connected to a continuous slip ring in order to obtain the advantages described above.

FIG. 22 shows a further preferred embodiment of a motor constructed according to the invention which magnetically interfaces rotor 103 from both polarization directions in a “coaxial” configuration. The rotor 103 is attached to the output shaft 105.

The motor housing 110 provides an outer flux return path and an inner bend return path is provided by a cylindrical magnetic member 115 attached to the stator. The slip ring 120 functions to continuously connect to the rotor as in the above embodiment.

The motor is characterized by improved efficiency and torque. The inherent problem with lamination and ironless motors or motors concerns the smaller wire size needed to form the minimum average air gap. The lamination provides a core where the wire is wound and laminated and the flux is delivered to the (silent) pole. In the case of a coreless (ironless) motor, ideally the largest wire diameter is used to minimize the coil resistance to reduce the power consumed by the motor. This is simply expressed as I ² R loss. Based on the basic laws of magnets, and the need to obtain sufficient amperage to obtain the required torque, the balance between conductor sizes, the need for winding height, and the proper access between coils are often needed, for example, to reduce electrical resistance and Depending on the need to accommodate higher windings or by applying smaller windings, it is a difficult design issue to ask, such as whether to increase the size of the windings to maintain a small but higher intermediate electrical resistance to higher electrical resistance.

The electric motor shown in Fig. 22 is an effective solution to this difficulty. The stator coils are separated into two or more coaxial units, allowing rotor windings to pass between coaxial units, enabling the use of significantly larger winding sizes while guaranteeing a cumulative void reduction of approximately 30%. The most important consideration is that the laws of physics indicating the magnetic flux density decrease in inverse proportion to the square of the distance or average porosity. The aforementioned percentage of physical mutual coil access improvements considered in relation to the inverse squared action translates to significant improvements in the coil for magnetic flux interaction, ie overall motor performance and efficiency. Thus, the average void can be reduced by less than 30%, which causes the magnetic flux density to increase in inverse proportion to the square of the distance.

Another feature of the electric motor of FIG. 22 is that the internal return path provided by the member 15 is static and does not rotate. The result is a markedly reduced rotor inertia. The advantage of this is a substantial reduction of rotor inertia, which results in a significantly reduced mechanical time constant (the time required to accelerate the rotor to 63.2% of the predetermined speed) or a simple and quick acceleration time. In connection with the foregoing, there is an option to use a substantial mass return path element to facilitate the use of significantly higher magnetic flux densities to provide very rapid acceleration and braking. Thus, the advantages of the rotor of FIG. 22 are;

a) The magnetic flux interacts equally with both sides of the rotor winding. The total flux path length is reduced.

b) The symmetrical attraction and repulsion are consistent with the basic direction of rotation. This intensifies the drive torque, reduces the generation of audible noise, and contributes to reducing vibration at low speeds.

c) The fixed internal return path contributes to ensuring that the weight of this motor element is as large as necessary to support the required rotor flux density without contributing to increased rotational inertia.

d) Magnetic flux is induced on both sides of the rotor coil. The active magnetic flux is from two planes that cause the same rotor penetration on both sides, while the two stator windings have a balanced increment towards the center of the rotor windings.

Machines constructed in accordance with the invention can be used as electric motors, generators or electric brakes whose phases are determined by the flow of current through stators or rotors electrically connected in series or in parallel. Rotor excitation is achieved by using a slip ring or other device provided to deliver current to the dynamic electromagnetic device.

In addition, the present invention can be classified as a new embodiment of a stepper motor that can enhance the efficiency obtainable by adjusting the flux source substantially without limiting all generation to provide high flexibility in terms of power application. The present invention also prevents any torque from providing the ability to reverse drive the device. This is typically not possible with conventional permanent magnet step motors. The description regarding the stepping motor characteristics is well described as the whole device to be replaced by a variable magnetoresistance or permanent magnet structure. Thus, the machine of the present invention can be used for monopole or dipole exciter, which allows the user to fully control all magnetic flux densities. When used as a generator / alternator, the frequency and voltage outputs can be controlled by the user.

Thus, the principles of the present invention relate to the use of a round stator and a round rotor. The term 'ound' as used herein means that the stator assembly and the rotor assembly do not use an iron core such as permanent magnet material or lamination, which generates a unique magnetic flux pattern when the associated coil is excited. Using ound stators and ound rotors has the advantages of lighter weight, easier manufacturing, magnetic flux patterns have more rotational uniformity, and mitigation that the control circuitry of the tuned coil is switched according to the rotor rotational position. Let's do it. However, as described below, features of the present invention can also be advantageously used in motors / generators having an iron core or permanent magnet material.

23A and 23B show an exemplary split stator assembly 140 that can be used within the structure shown in FIG. 22. As shown, the stator assembly includes one or more coils disposed around the columnar outer ring 135 and one or more coils disposed around the columnar inner ring 137. The rings form an annular aperture 136 for receiving the rotor assembly 150 (shown in FIG. 24). Rings 135 and 137 are concentric with the same axis at a position (radius) radially spaced from axis 160. The stator windings may be shown as radially segmented between the inner ring 127 and the outer ring 135. As shown in FIG. 23B, the windings may be segmented in an axis. Coil segments 141 and 143 are coils segmented in an axis disposed on the annular ring 135. Coil segments 142 and 144 are coils segmented in an axis disposed on inner ring 137. Outer ring 135 and inner ring 137 may collectively be members of stator support member 133. As described above, the stator assembly is formed to surround at least a portion of the stator coils in the support member 133 to form an integral part of the support member to reduce the manufacturing cost and facilitate assembly.

The inner ring 135 can be frictionally interlocked with the columnar return member, implemented as a collar 145 forming a stator flux return path. The collar 145 remains stable with respect to the stator assembly 140, thereby preventing frictional losses and improving efficiency.

In a preferred embodiment, the stator windings are connected with pairs of coils 130, 132, 134 and 136. The specific wiring arrangement of the coil can be changed as mentioned above.

Exemplary wiring diagrams for facilitating unidirectional rotation of the stator and bidirectional rotation of the stator are shown in FIGS. 30 and 31, respectively. The wiring diagrams shown in Figs. 30 and 31 are arranged so that the rotor coil and the stator coil are arranged in series. However, optional wiring diagrams may be implemented within the scope of the present invention.

FIG. 24 shows an exemplary structure of the rotor assembly 150 suitable for rotation in the stator annular recess 139, shown in FIG. 23. Rotor assembly 150 may be formed to include a rotor and a plurality of rotor coils, which may be connected to a pair, such as 134, 136. The coils are arranged concentrically around the common axis 160. Coils 142 and 144 may be segmented axially in the same manner as stator coils 141 and 143 (FIG. 23B).

Rotor assembly 150 may include a support member having a stator coil formed thereon. In one embodiment the stator coils are integrally formed with the rotor support member such that at least a portion of the rotor coil is embedded in the support member. The support member may be formed of a material such as a heat setting plastic resin. As shown in FIG. 24B, an end cap 170 is provided adjacent to the rotor member to facilitate electrical connection to the rotor member as the rotor rotates about shaft 160.

25 shows the combined stator and rotor members. As shown, the stator member includes additional biasing coils or shadings 142, 144, which rotate the rotor member clockwise upon initial startup. The biasing coils 142, 144 are asymmetrical such that the rotor member moves towards the biasing coil when power is first applied. As the power changes polarity, the rotor is pushed by the repulsive force (repulsive force) to continue to move in the same direction, ie clockwise, and the rotation continues in the clockwise direction. As shown in Figs. 27, 28 and 29, the rotor member can be biased at various starting positions, so that the bias angle α 'is 30 °, 60 °, 90 ° or other relative to the stator member. Can be in radians of rotation. The specific biasing angle can be selected according to specific requirements, and can be selected to enhance the signal transition and the repulsive force that generates high torque as the rotor member begins to rotate. In practice, the rotor biasing or predisposition may be significantly less than the displacement shown, for example within the range of 10 °. When the initial power rises, the rotor is set in a predetermined direction according to the biasing of the stator windings. During the next electrical cycle, the polarities of all windings are reversed, resulting in magnetic changes in attraction and repulsive force.

FIG. 26 shows a configuration of the rotor member including a pair of biasing coils 142, 144 to facilitate selective bidirectional rotation of the rotor member.

The stator member 140 and the rotor member 150 have a small tolerance so that the air gaps 151 and 153 are small. The narrow air gap and split arrangement of the stator coils provide greater magnetic flux for each segment of rotation to enhance rotational torque. The magnetic flux interaction between the rotor coil and adjacent stator coils disposed on both sides of the rotor coil is significantly greater than that obtained by a single ring of stator coils.

32 illustrates a coaxial flux pattern generated by the present invention. Rotor segments 180 and 182 and stator segments 184 and 186 are shown here. As the stator and rotor segments are excited, coaxial magnetic fields 190 and 192 are generated and rotational force is applied to the rotor to rotate the rotor in the R direction. As the rotor rotates and switching occurs, the opposing rotor and stator segments, although opposite, produce relatively identical polarity changes. As shown in FIG. 2, rotor segment 180 is subject to attraction, while rotor 182 segment is affected by repulsive force.

In addition, as described above, the stator and rotor member may be composed of a cast plastic part wound around a coil. This configuration reduces manufacturing costs and facilitates manufacturing. The absence of permanent magnets or iron cores is economically advantageous and also avoids the performance limitations resulting from the saturation properties of iron or permanent magnet materials.

In a preferred embodiment, the coil can be excited by an H-bridge circuit generally available in the art. The H-bridge circuit can be an integrated circuit such as, for example, the SGS Thompson L203 Controller. Changing the voltage of the circuit changes the current and frequency consumed in the coil, thereby changing the rotational speed of the rotor member. As long as the rotor member preferably does not comprise permanent magnets or iron cores (rotor wound with wire), the rotor member is not defined in a particular direction and the associated speed limitations can be avoided. In a preferred embodiment, the rotor assembly usually rotates at 1,000 to 5,000 rpm and the coil operates at 2,000 to 10,000 cycles per second. As the number of coils increases, the operating frequency will increase accordingly.

As will be appreciated by those skilled in the art, the switching circuit need not be implemented as an H bridge but may be implemented as any other various kinds of switching circuits. As such, the same switching current can be applied to the stator and rotor coils. The coil can also be operated by connecting directly to an AC source, although less efficient. However, the inclusion of a signal conditioning circuit will reduce vibrations and improve the efficiency of the direct AC signal. Normally available switching circuits will provide higher efficiency.

The previous description is primarily described in connection with wired stators and rotors (ie without permanent magnets or iron cores), but the present invention includes designs and properties that are advantageous for iron core motor or permanent magnet configurations. For example, magnetic flux density improvements resulting from split stators can likewise have advantageous applications for iron cores. As such, the invention is not limited to application to wired motors, generators or other electronic devices.

However, certain features of the invention are particularly advantageous for wired stators and rotors. As long as the iron core motors typically exhibit a predominant magnetic orientation, the coil switching circuit may be limited by the need to maintain significant synchronization between the magnetic field generating pattern and the switching speed. Hall effect sensors are commonly used in such applications.

Typically, interactive motor poles or coils are expected to approach each other from parallel planes of the sides and the vectors of the planes are to be transitioned vertically from small angle values. During this transition, the forces in the lateral or force vector direction are incrementally moved away from the arc and to approach full vertical unless it is about a commutation process that disables the associated winding. However, in the present invention, the dominant force vector remains primarily in the direction of rotation so that the direction of force remains substantially the same even if the switching circuit exceeds the rotor rotational speed or the rotor rotational speed exceeds the switching circuit. . As long as the rotor and stator coils are excited by the same switching signal switching circuit, the relative magnetic polarity remains the same and the motor direction is a function of the preset direction. As such, the switching circuit can operate relatively asynchronously with respect to the rotor rotational speed / position. This reduces the limitations on motor operation and associated manufacturing costs. Without the core, the magnetic saturation limit, which limits switching speed or other functions, is relaxed. Thus, the application of the present invention to a coreless core provides economic benefits and improves motor compatibility with high speed switching circuits.

As will be appreciated by those skilled in the art, the main features of the present invention have been described herein in connection with specific embodiments and with regard to the latest application of certain inventions. However, the present invention can be implemented in connection with a number of other embodiments. Although primarily described in connection with applications for motors, the present invention has applications similar to generators, electric brakes, and other devices in which conventional components are used. In addition, features of the present invention may be implemented in alternative configurations, which include, but are not limited to, system level redistribution of component features and component level replacement of equivalent circuits or equivalent structures.

Claims (20)

As a transmission mechanism, (a) a stator assembly having a plurality of stator rings defining an annular opening therebetween; And and (b) a rotor assembly disposed within said annular opening and convertable therein. 2. The transmission mechanism of claim 1, further comprising stator coil (s) formed on each stator ring and rotor coil (s) formed on the rotor. 3. The stator coil annular segment (s) of claim 2, wherein the stator coil (s) and rotor coil (s) can be disposed in a corresponding space opposite the annular segment, wherein the rotor coil annular segment (s) Rotatable relative to the). 4. The rotor coil annular segment (s) and stator coil annular segment (s) of claim 3 may be excited to generate a rotational force applied to the rotor, wherein the rotational force is rotated relative to the stator. And a transmission mechanism operative to rotate the electrons. 5. The transmission mechanism of claim 4, further comprising a switching circuit that regulates excitation of the stator coil (s) and rotor coil (s) to affect variable speed rotation of the rotor. 6. The transmission mechanism according to claim 5, wherein the primary rotational force applied to the rotor is maintained in substantially the same direction when the switching circuit excitation exceeds the rotor rotational speed. 6. The transmission mechanism as claimed in claim 5, wherein the primary rotational force moves in substantially the same direction when the rotor rotational speed exceeds the switching circuit excitation. 2. The transmission mechanism of claim 1 wherein the rotor rotational position is asynchronous to coil excitation timing. 6. The transmission mechanism according to claim 5, wherein the rotor rotational speed is asynchronous to the coil excitation rate. 3. The transmission mechanism of claim 2 wherein the stator is a wired stator. 10. The transmission mechanism of claim 9 wherein the rotor is a wired rotor. The transmission mechanism of claim 1, further comprising a stator support member made of an insulating material, wherein at least a portion of the stator coil is sealed and the insulation material forms the stator support member. 3. The transmission mechanism of claim 2 wherein the stator coil (s) and the rotor coil (s) are operative to radiate coaxial flux pattern (s) therebetween. 3. The transmission mechanism of claim 2 wherein the stator coil (s) comprises a plurality of axially spaced stator coils. 3. The transmission mechanism of claim 2 wherein the rotor coil (s) comprises a plurality of axially spaced rotor coils. 3. The transmission of claim 2, further comprising a conductive cylindrical return member disposed to contact adjacent to the stator assembly, the return member being stationary relative to the stator assembly and operative to facilitate a self return path. mechanism. 3. The method of claim 2, wherein the stator coil (s) further comprises biasing coil (s) connected to at least one of the stator coil (s) and extending from the coil, wherein the biasing coil (s) And move the rotor coil (s) to a position offset from the stator coil (s) to facilitate unidirectional rotation of the rotor assembly. 4. The rotor of claim 3 wherein the stator coil (s) comprises a plurality of biasing coils each connected to and extending from the associated stator coils, the biasing coils of the rotor assembly with respect to the stator assembly. Transmission mechanism, characterized in that it can be selectively excited to induce a two-way rotation. 6. The transmission mechanism according to claim 5, wherein the stator coil (s) and rotor coil (s) are connected in series with the switching circuit. 6. The transmission mechanism of claim 5 wherein said stator coil (s) and said rotor coil (s) receive a common switched signal from said switching circuit.