DESC:BIPOLAR INDUCTION MOTOR

FIELD OF THE INVENTION
The present invention relates to an induction motor and more particularly it relates to a bipolar induction motor.

BACKGROUND OF THE INVENTION
The following background information may present examples of specific aspects of the prior art (e.g., without limitation, approaches, facts, or common wisdom) that, while expected to be helpful to provide additional aspects of the prior art, is not to be construed as limiting the present invention, or any embodiments thereof, to anything stated or implied therein or inferred thereupon.
Currently induction motors, direct current motor, synchronous motor, BLDC motor etc. are widely used in the market.
Working principle of these motors is based on induced magnetic flux due to flow of current in the coil at a certain potential and this induced flux gets reacted either with the permanent magnetic field or inducted magnetic field that is induced in the second coil, by virtue of the rotatory motion induced in the motor.
Basically, the major drawbacks of induction and synchronous motors are its low energy to output efficiency as the losses occur in terms of heat.
Second, the most important factor is the higher amount of copper used in this type of motor manufacturing.
BLDC motor that was introduced recently has better efficiency but it cannot be used during the rough operations as its very costly and fragile. So, there is a need of a motor that consumes less energy and can be reconfigured easily to be used widely in every sectors.
Numerous attempts have been made and several prior art for improvement and increasing efficiency of motors. Even though these innovations may be suitable for the specific purposes to which they address, they may not be ideal for the purposes of the present invention.
For example, Chinese Patent CN110112852B to Wu Lijian et al. discloses a doubly-fed permanent magnet motor, comprising a bipolar permanent magnet, and two sets of primary and secondary windings, thereby improving the power density and regulation of the motor and reduces the temperature on the permanent magnet, reduces the risk of irreversible demagnetization of the permanent magnet, and improves the reliability of the motor.
For example, Chinese Patent publication CN107947516A to Huang Zhongwen discloses a permanent magnet brushless motor that includes fuselage cover, bearing, PM rotor and multi-pole coils wound stator, and inductive switch and induction pieces, each coil windings are in series with main power circuit by the inductive switch, the induction pieces are connected with the rotor in connection with an inductive switch.
For example, Chinese Patent CN105610292B to Chen Xiaozhong discloses a permanent-magnetic brush-less DC hub motor comprising a stator body, electromagnetic coil winding, motor shaft, and rotor assembly, wherein rotor assembly includes a set of permanent magnets and electromagnetic coil winding.
For example, Chinese Patent publication CN106033924A to Liu Feng discloses a three-phase direct-current motor characterized in that stator groove teeth are arranged in an inner circle of a motor shell; three-phase coil windings are arranged in the stator groove teeth; a rotor, a rectifier and permanent magnets.
For example, Chinese Utility Model CN203339920U to Cai Zhongying discloses a two-phase brushless direct-current motor, which comprises a rotor a plurality of N-pole permanent magnets and S-pole permanent magnets and a stator provided with two phases of staggered teeth to provide coil windings. Further the motor comprises a few resistors, capacitance discrete elements, and an integrated operational amplifier.
For example, Chinese Utility Model CN203377765U to Zhou Lianming et al. discloses an induction commutated brushless direct current motor comprises a stator with electromagnetic poles distributed along the circumferential direction and a rotor having a permanent magnet fixed on a rotating shaft. Detection coils are electrically connected with a trigger module to trigger a commutated circuit which controls the on-off order of each excitation coil.
For example, US Patent US4355255A to John A. Herr et al. discloses a brushless direct current motor comprising a rotor having a rare earth magnet within a nonferrous cylinder and a pair of coil windings which are air wound. Both coils are simultaneously energized and the polarity of current flow through the coils is reversed in such a manner that there is a current reversal through only one of the coils whenever the current is switched. Coil switching is directed by a triggering magnet fixed on the rotor shaft, which magnet operates Hall effect switches.
It is apparent now that numerous innovations that are adapted to a variety of motors and their configuration, which have been previously developed in the prior art that are adequate for various purposes. Furthermore, even though these innovations may be suitable for the specific purposes to which they address, accordingly, they would not be suitable for the purposes of the present invention. Thus, there is a need for an improved motor to overcome the deficiencies in the prior art so as to provide a motor the utilizes both the advantages of the induction motor as well as BLDC motors.

SUMMARY OF THE INVENTION:
The present invention allows to overcome the above-mentioned conventional problems of the prior arts; therefore, it is an object of the present invention is to provide an improved induction motor, specifically a bipolar induction motor, that addresses the limitations of conventional motors.
According to an aspect of the present invention, a bipolar induction motor is provided that significantly improves energy efficiency and output compared to conventional induction motors, while maintaining robustness.
According to another aspect of the present invention, a motor is provided that can be retrofitted to existing induction motors, offering efficiency superior to current BLDC motors while being more robust in design. This also allows existing induction motor manufacturing industries to adapt the present invention in their setups.
The present invention operates on a novel bipolar inductance technology, enabling a greater number of reactive coils to be active simultaneously, which generates better torque and RPM with less power consumption. This leads to a substantial reduction in power consumption and running costs over time, making it an economically viable solution for various rotating devices compatible with induction motors, without requiring changes to the overall motor structure.
An objective of the present invention is to develop a low power consuming motor in comparison to the available induction motors so as to improve higher energy efficiency and better output. Further, the present invention allows to be retrofitted to existing induction motors to provide efficiency better than current BLDC motors and while simultaneously robust in design like induction motor.
Another objective of the present invention is to reduce the power consumption of the motor, thereby reducing its running cost over a longer period of time, making it a more acceptable and economically viable solution for all kinds of rotating devices that are compatible with an induction motor without changing the overall structure of the motor.

These and other objectives, advantages and aspects of the invention will become apparent from the following detailed description, taken in conjunction with the accompanying drawings, which illustrate, by way of example, the features in accordance with embodiments of the invention. The summary is not intended to limit the scope of the invention, which is defined solely by the claims attached hereto.

BRIEF DESCRIPTION OF THE DRAWINGS
The invention will now be described, by way of example, with reference to the accompanying drawings, in which:
FIG. 1 represents exploded view of the motor of the present invention illustrating stator, rotor and circuitry of the motor in accordance with an embodiment of the present invention;
FIG. 2 illustrates arrangement of stator and rotor of the motor, in accordance with an embodiment of the present invention;
FIG. 3 shows a top perspective view of the arrangement of the stator, rotor and circuitry of the motor, in accordance with an embodiment of the present invention;
FIG. 4A shows a flow chart illustrating the method of operation of the motor, in accordance with an embodiment of the present invention;
FIG. 4B shows arrangement of magnets with the respective hall effect sensors of the motor, in accordance with an embodiment of the present invention;
FIG. 4C discloses the coil arrangement of the motor, in accordance with an embodiment of the present invention; and
FIG. 4D-G discloses the four possible sequences of triggering of the coil of the motor, in accordance with an embodiment of the present invention.
Like reference numerals refer to like parts throughout the various views of the drawings.

DETAILED DESCRIPTION OF THE INVENTION:
The following detailed description is merely exemplary in nature and is not intended to limit the described embodiments or the application and uses of the described embodiments. All of the implementations described below are exemplary implementations provided to enable persons skilled in the art to make or use the embodiments of the disclosure and are not intended to limit the scope of the disclosure, which is defined by the claims. Furthermore, there is no intention to be bound by any expressed or implied theory presented in the preceding technical field, background, brief summary or the following detailed description. It is also to be understood that the specific system and processes described in the following specification, are simply exemplary embodiments of the inventive concepts defined in the appended claims. Throughout this specification the word “comprise” or variations such as “comprises or comprising”, will be understood to imply the inclusions of a stated element or group of elements. Specific dimensions and other physical characteristics relating to the embodiments disclosed herein are therefore not to be considered as limiting, unless the claims expressly state otherwise.
According to several embodiments of the present invention is to develop a low power consuming motor (100) compared to available induction motors, thereby achieving higher energy efficiency and better output. Furthermore, the present invention allows for retrofitting to existing induction motors, providing efficiency superior to current BLDC motors while simultaneously being robust in design, similar to induction motors. The present invention facilitates converting existing induction motors into high-efficient motors and allows existing induction motor manufacturing industries to adapt the present invention in their existing setups to upgrade their motor output.
The present invention operates on bipolar inductance technology for the current motor system. Bipolar inductance technology provides better output compared to existing motors, as a greater number of reactive coils are active at a time, allowing for better torque and RPM with less power consumption. This also reduces the running cost of the motor (100) over a longer period, making it a more acceptable and economically viable solution for all kinds of rotating devices compatible with induction motors without changing the overall structure of the motor.
According to an aspect of the present invention, a bipolar induction motor (100) comprises a stator (116), a rotor (118) and a housing characterized in that the motor (100) comprises: a circuitry (102), wherein the circuitry (102) comprises a voltage regulator (104), an analog comparator (108), an analog decoder (110), an analog driving logic level input means (112), multiple optocouplers (112a), multiple transistors (112b) and multiple MOSFETs (114) functionally connected to each other;
the stator (116) comprises a primary coil (120) and a secondary coil (122) and two hall effect sensors (106); the rotor (118) is provided with multiple detachable magnets (118a-f); and the housing (not shown) encloses the stator (116), the rotor (118) and the circuitry (102) in a functional configuration inside the housing.
According to another aspect of the present invention, the rotor (118) is provided with six detachable permanent magnets (118a-f) mounted onto its inner surface, wherein poles of the permanent magnets (118a-f) always remain perpendicular to the poles of the primary (120) and the secondary coils (122) of the stator (116).
According to another aspect of the present invention, the comparator (108) is an IC LM324D.
According to another aspect of the present invention, the decoder (110) is an IC HD74LS139P.
According to another aspect of the present invention, the optocouplers (112a) are PC817.
According to another aspect of the present invention, the circuitry (102) comprises ten optocouplers (112a), eight MOSFETs (114), and sixteen transistors (112b).
According to another aspect of the present invention, each of the primary coil (120) and secondary coil (122) comprise four wires, with each coil having 12 windings and each winding comprising at least 60 turns for a 24-volt motor (100).
According to another aspect of the present invention, the inactive coil acts as a generator, producing electromotive force (EMF) or voltage by reacting to the magnetic field of the permanent magnets (118a-f), thereby decreasing power consumption.
According to another aspect of the present invention as shown in FIG. 4B, the bipolar induction motor (100) is configured to operate with a current range variation up to 0.5 ampere to 5 ampere, allowing for a greater speed range and flexibility compared to existing induction and BLDC motors of similar capacity.
According to another aspect of the present invention as shown in FIG. 4A, the bipolar induction motor (100) further comprising a step-down transformer (103) configured to step down an input voltage from 220V AC to 12-24V AC, and a voltage regulator (104) (LM7805 IC) for supplying voltage to the hall effect sensors (106).
According to another aspect of the present invention, the bipolar induction motor (100) further comprising two electrolytic capacitors configured to store regenerative energy produced by the interaction of the coils (120, 122) with the permanent magnets (118a-f), and to supply said stored energy back to the motor (100).
According to another aspect of the present invention, the motor (100) provides 3 to 4 times more power efficient output compared to conventional induction motor and fan systems. Additionally, the motor (100) of the present invention is 20 to 25% less expensive than existing BLDC motor or controller-based motor systems. This is achieved by requiring fewer turns of copper coil, thereby reducing copper consumption while increasing motor efficiency. The bipolar induction motor (100) configuration of the present invention offers important advantages over induction motors, such as low electricity consumption, less noise generation, and a better lifespan due to less heating of coils.
As shown in FIG. 4A, the circuitry (102) of the present invention comprises an analog driving logic level input means (112) that performs switching of MOSFETs (114) that are responsible to trigger the coils (120, 122). The present invention allows to increase angular rotation of the motor (100) with increase in current over a greater range compared to existing induction and BLDC motors. According to an exemplary embodiment as shown in FIG. 4B, the present invention allows to increase angular rotation of the motor (100) for an increase of current up to a range from 0.5 ampere to 5 ampere while induction and BLDC motor with similar capacity can allow a current range variation up to 0.5 ampere to 2 ampere, thereby allowing greater speed range and flexibility by the present invention over the existing induction and BLDC motor technology.
According to an exemplary embodiment as shown in FIG. 4A, the motor (100) of the present invention comprises a circuitry (102), wherein the circuitry (102) comprises an analog driving logic level input means (112), decoder (110), a comparator (108), multiple optocouplers (112a), MOSFETs (114), transistors (112b) as major components. Further the motor (100) of the present invention comprises a stator (116) having a primary coil (120) and a secondary coil (122), and two hall effect sensors (106). Further the motor (100) of the present invention comprises a rotor (118) with a ring (119), wherein the inner circumference of the ring (119) is provided with multiple detachable magnets (118a-f) as shown in FIGs 1-3. The stator (116), the rotor (118) and the circuitry (102) of the motor (100) the present invention and arranged in a functional configuration inside a housing (not shown).
According to another exemplary embodiment, the circuitry (102) that is driving the motor (100) by sensing the feedback from the two hall effect sensors (106) that are mounted on the stator (116). Further, the multiple permanent magnets (118a-f) that are mounted in such a manner that the poles of the permanent magnets (118a-f) always remain perpendicular to the poles of the electromagnetic coils of the stator (116). According to another exemplary embodiment, without limitation, six number of permanent magnets (118a-f) are mounted onto the inner surface of the rotor (118).
According to another exemplary embodiment, when input current is supplied to the motor (100), the circuitry (102) creates angular rotation of the motor (100) by receiving signal from the two parallel hall effect sensors (106). The hall effect sensors (106) sense the change in magnetic field and send the signal to the comparator (108).
According to another exemplary embodiment, without limitation, the comparator (108) is an IC LM324D. The signal from the comparator (108) is processed by a decoder (110) (e.g HD74LS139P) to decode the analog signal into digital signal (High-Low), then the digital signal is transmitted to logic level means of the circuit (102) that comprises multiple optocouplers (112a) (e.g PC817) and multiple transistors (112b). The processed signal is transmitted to the multiple MOSFETs (114) to trigger the coils (120, 122) with regular interval of time in sequential manner to allow the motor to rotate continuously. According to another exemplary embodiment, without limitation the present invention comprises ten number of optocouplers (112a), eight number of MOSFETs (114) and sixteen number of transistors (112b).
According to another embodiment of the present invention as shown in the flow chart in Fig. 4A, the method of operation of the motor (100) comprises steps of stepping down the voltage of the input from 220vAc to 12-24vAC using a step-down transformer (103) associated with the circuit (102) to activate the motor (100) at the desired voltage input. Thereafter, the voltage signal is transmitted to both the hall effect sensors (106) via a voltage regulator (104) (LM7805 IC) to detect two different poles and transmits corresponding voltage signal to a comparator (108) (LM324D), wherein the comparator (108) senses the change in potential difference by cross checking the incoming voltage from the hall effect sensors (106) from set reference voltage (e.g. 2.5v) at the comparator (108) as shown in Fig. 4B. Thereafter, the comparator (108) sends on and off (High & Low) signal accordingly to logic level circuit. For example, when the signal from hall sensors (106) is detected greater than 2.5v, then set reference voltage the comparator gives high (1) or ON signal else OFF signal. This cycle repeated six times in one rotation of the rotor (118). Then the comparator (108) detects four permutations (0-0, 0-1, 1-1, 1-0) for the detected signal from the two hall effect sensors (106) for the comparison value with the set reference voltage. The reference voltage can be varied as per the capacity of the motor (100) and the need without departing from the scope and the spirit of the present invention. Thereafter, the signal is transmitted to the decoder (110) (HD74LS139P) from the comparator (108), the decoder (110) converts the analog signal to digital signal so that it drives the logic level circuit means (LLC). Then, LLC drives both type of MOSFETs (114) (P and N type). According to an exemplary embodiment, eight numbers of MOSFETs (114), four for each coil (primary (120) and secondary coil (122)), as each coil has two positive and two negative terminals, thus 4 terminals connect to the respective four MOSFETs (114), then for opposite pole, another four MOSFETs (114) drive the coil, thereby allowing the motor (100) to rotate. Further the LLC (102) comprises ten number of optocouplers (112a) and sixteen number of transistors (112b) so as to systematically switch on/off the MOSFETs to drive the coil in sequence (1,3,4,2) slots as shown in the Figs. 4C-4G. The shifting of poles takes place in sequential manner such that north and south poles are adjacent to each other and switching occur simultaneously one by one. To get reacted from permanent magnetic field according to pole situations to carry out 360-degree rotation. Thereafter, the received signal is transmitted from MOSFETs (114) to respective poles, wherein two poles connect to two wires from primary coil (120) and other two poles connect to two wires from secondary coil (122). Further the regenerative energy produced interaction of the coil with the permanent magnetic field, that is stored in two electrolytic capacitors, thereafter, this energy is available for rotating the motor, thereby saving power consumption.
One of the advantages of the present invention is to activate one coil at a time hence it reduces the heating effect on coil as it earlier used to happen in traditional motor.
Another advantage of the present invention allows the motor (100) to collect the back EMF by the circuit and transmit it back to the motor (100) to act like a regenerative system.
Further the configuration of the motor (100) of present invention allows rotating both the coils (120. 122) but at a time one coil is active and the other is inactive, wherein the inactive coil acts as a generator and generate EMF or voltage by reacting to the magnetic field of permanent magnet, thereby decreases power consumption to make the motor (100) more efficient.
Another advantage of the present invention is that the motor (100) has two hall effect sensors (106) that sense the position of the permanent magnet pole and transmit the signal to the comparator (108) to provide continuity of the signal to make the motor (100) more efficient and reliable.
Another advantage of the present invention allows the motor (100) to have four wires (two from primary coil (120) & two from secondary coil (122)), wherein each coil (120, 122) has 12 windings with two opposite turns in adjacent slot windings, wherein each of the winding comprises at least 60 turns for 24volt motor, with increase or decrease of the capacity of the motor the number of turns can be varied accordingly.
Because many modifications, variations, and changes in detail can be made to the described embodiments of the invention, it is intended that all matters in the foregoing description and shown in the accompanying drawings be interpreted as illustrative and not in a limiting sense. Thus, the scope of the invention should be determined by the appended claims and their legal equivalence.
,CLAIMS:We Claim:
1. A bipolar induction motor (100) comprises a stator (116), a rotor (118) and a housing characterized in that the motor (100) comprises:
a circuitry (102), wherein the circuitry (102) comprises a voltage regulator (104), an analog comparator (108), an analog decoder (110), an analog driving logic level input means (112), multiple optocouplers (112a), multiple transistors (112b) and multiple MOSFETs (114) functionally connected to each other;
the stator (116) comprises a primary coil (120) and a secondary coil (122) and two hall effect sensors (106);
the rotor (118) is provided with multiple detachable magnets (118a-f); and
the housing (not shown) encloses the stator (116), the rotor (118) and the circuitry (102) in a functional configuration inside the housing.
2. The bipolar induction motor (100) as claimed in claim 1, wherein the rotor (118) is provided with six detachable permanent magnets (118a-f) mounted onto its inner surface, wherein poles of the permanent magnets (118a-f) always remain perpendicular to the poles of the primary (120) and the secondary coils (122) of the stator (116).
3. The bipolar induction motor (100) as claimed in claim 1, wherein the comparator (108) is an IC LM324D.
4. The bipolar induction motor (100) as claimed in claim 1, wherein the decoder (110) is an IC HD74LS139P.
5. The bipolar induction motor (100) as claimed in claim 1, wherein the optocouplers (112a) are PC817.
6. The bipolar induction motor (100) as claimed in claim 1, wherein the circuitry (102) comprises ten optocouplers (112a), eight MOSFETs (114), and sixteen transistors (112b).
7. The bipolar induction motor (100) as claimed in claim 1, further comprising a step-down transformer (103) configured to step down an input voltage from 220V AC to 12-24V AC, and a voltage regulator (104) (LM7805 IC) for supplying voltage to the hall effect sensors (106).
8. The bipolar induction motor (100) as claimed in claim 1, wherein each of the primary coil (120) and secondary coil (122) comprise four wires, with each coil having 12 windings and each winding comprising at least 60 turns for a 24-volt motor (100).
9. The bipolar induction motor (100) as claimed in claim 1, configured to operate with a current range variation up to 0.5 ampere to 5 ampere, allowing for a greater speed range and flexibility compared to existing induction and BLDC motors of similar capacity.