Special permanent magnet motor

Abstract

The special permanent magnet motor of the present invention comprises a stator, a rotor, a shell and an external controller. The stator silicon steel magnetic core has wire slots and a plurality of identical coil windings. The magnetic core has grooves in which stator permanent magnets are installed. The grooves have two types, closed and open, and are mutually superimposed to form a stator fence-shaped magnetic core. Two identical stators A and stators B are installed on the same axis to form a stator structure. The connection between the stator A and the stator B and the flux sleeve constitutes a U-shaped magnet space structure. The rotor comprises a rotor silicon steel magnetic core, a closed squirrel cage and a rotor permanent magnet. The controller outputs three phases with the same positive and negative sine waves or ladder wave pulse half-wave power supply. The present invention is green and environmentally friendly, energy-saving and safe, and has low use cost. It can work stably for a long time in an airless environment. It is widely used in various power equipment and has high social and economic value.

Description

Technical Field

[0001] The present invention relates to a special permanent magnet motor which converts magnetic energy indirectly into mechanical energy, in particular to an AC permanent magnet motor, and belongs to the application technical field of superposition of electromagnetic field and rare earth permanent magnetic field. Background Art

[0002] At present, rare earth neodymium iron boron permanent magnets are used on the rotor of permanent magnet motors to replace the electromagnetic field of the excitation coil, which saves more electricity than traditional old motors. However, the electromagnetic main coil is still used on the stator, which is the main source of heat and energy consumption of the stator. Unsafe accidents such as overheating and burning of the winding often occur. Therefore, it is necessary to continue to study power-saving solutions to ensure that the motor is more efficient and safe. In response to the above problems, starting from the existing permanent magnet motors, we can explore whether it is possible to use permanent magnets in the stator coils so that they can be superimposed with the permanent magnets on the rotor to form a new changing composite magnetic field on the basis of following the electromagnetic principle, so that the new changing composite magnetic field can interact with the magnetic field on the rotor to rotate and do work externally? According to the patent number ZL201720376551.7 AC permanent magnet motor, and the patent number 201821133703.1 an AC permanent magnet motor, the coil on each of their stator cores is divided into two DC coils by one AC coil, but these two DC coils and the silicon steel sheet core are arranged in radial positions on the same stator, which makes the stator diameter larger and the number of terminal heads is larger. In the actual production process, a new device is innovatively designed: if the two divided DC coils and the silicon steel sheet core are arranged on the same axis, the stator diameter can be reduced and the motor casing diameter can be reduced compared with motors of the same power, and the terminal heads are simple and clear, and it is not easy to connect the wrong wire heads. The reduction in the outer diameter of the rotor also has a positive effect on reducing noise, which can further improve efficiency and better make the new changing composite magnetic field principle of mutual interference and superposition of electromagnetic field and permanent magnetic field show good characteristics. Summary of the invention

[0003] The present invention aims to provide a green, safe, novel, energy-saving, noise-reducing, and reliable special permanent magnet motor system in response to the above-mentioned problems. The permanent magnet is installed in the silicon steel laminated sheet magnetic core in the stator coil, and a stator of a traditional motor is designed and manufactured into two separate and identical stators A and stator B. Stator A and stator B are installed on the same axis. It is assumed that the DC coil of stator A is limited to the positive pulse DC in the full-wave rectification, and the DC coil of stator B is limited to the other half of the negative pulse DC in the full-wave rectification. In this way, one of the two separate stator A DC coils is energized, and the corresponding DC coil of the other stator B is energized. In the power-off state, they are alternately powered on to transform the electromagnetic field under the control of the controller. The surface polarity of the stator permanent iron installed in the groove of the silicon steel core is the same as the polarity of the corresponding DC coil electromagnetic field. The pulse electromagnetic field generated by power-on is superimposed on the permanent magnet constant magnetic field to form a dynamic pulse new composite magnetic field. The composite magnetic field of the two stators generates a fluctuating pulse magnetic field at the air gap position and has the characteristics of a rotating magnetic field. The metal squirrel cage frame on the rotor rotates under the action of the dynamic magnetic field and determines the direction of rotation. There are also a number of permanent magnet combinations on the rotor that rotate under the action of the stator composite magnetic field. The frequency and differential angle are designed to be adjustable through the controller; the innovative improvement content is: the present invention It is a special permanent magnet motor, including four parts: stator, rotor, shell and external controller. There are several identical wire slots and several identical coil windings on the silicon steel laminated core of the stator. There are identical grooves in the core. Stator permanent magnets are installed in the grooves. Two identical stators A and B are installed on the same axis to form a stator structure. The interval between stator A and stator B is connected by a flux sleeve and accommodates the exposed part of the coil. The connection between stator A and stator B and the flux sleeve forms a U-shaped magnet space structure. When positive and negative sinusoidal pulse DC is passed into the stator coil, a dynamic sinusoidal pulse composite magnetic field is generated. Under the control of a three-phase full-wave rectifier power supply, this The composite magnetic field forms a rotating magnetic field at the air gap position, driving the rotor to rotate; when the rotor cage closed structure has no tilt angle, stator A and stator B are installed with a tilt angle, which is the angle of a wire slot, or when the rotor cage closed structure has a tilt angle, stator A and stator B are installed without a tilt angle; the polarity of the permanent magnet installed on stator A is opposite to that of the permanent magnet installed on stator B, and the polarity of the installed stator permanent magnet is the same as the electromagnetic polarity of the corresponding stator coil electromagnetic field; the stator silicon steel sheet grooves have two types of closed and open types, which overlap each other to form a fence-shaped stator core, and the composite magnetic field parameters can be adjusted in the design and manufacturing stage;When positive pulse direct current is applied to stator A, reverse pulse direct current is applied to stator B, so that one coil of stator A is energized and the other coil of stator B is in a power-off state. They are energized alternately to transform the electromagnetic field and operate. A stator coil unit is composed of several groups of identical coils and magnetic cores, and a phase sequence coil is composed of three identical stator coil units. Every three groups of phase sequence coils constitute a terminal combination of A+, B+, C+ and A-, B-, C- and O lines. This positive and negative relative combination and several integer multiples of the same coil unit combination constitute a complete stator coil; the minimum width of the silicon steel sheet between two adjacent stator slots is less than the stator yoke height; the rotor includes a rotor silicon steel magnetic core, a closed squirrel cage on the magnetic core, and a rotor permanent magnet in the groove. Iron, forming a complete rotor structure, the rotor is an integral and unsegmented one; the controller outputs a three-phase full-wave rectified DC power supply with the same positive and negative sine waves or modified pulse half-wave, which is connected to the 7 outlet terminals of the stator coil through a special plug and socket; there are grooves in the stator silicon steel core, and the surface is fence-shaped after lamination, so that the permanent magnets installed in the grooves have obvious alternating exposed spaces, and several stator permanent magnets of the same polarity are installed in the same groove. The electromagnetic field strength generated by the energized coil must be close to or less than the constant magnetic field strength value of the stator permanent magnet when the power is off; the effective magnetic length L of the stator is composed of a whole section or several identical sections; the coil is wound with enameled copper wire or copper conductor; the power is input by the controller, and the controller has several according to the power supply and configuration. Series of products, the power supply to the controller is divided into three-phase power supply of power plant or battery DC power supply or solar cell and other power supplies. The input is three-phase AC power supply directly connected to the matching controller for rectification and output. The input power is DC power and needs to be oscillated by the inverter before inputting into the controller for rectification and output. The main basic circuit of rectification in the controller is the three-phase full-wave rectifier circuit, which generates a three-phase sinusoidal pulse half-wave. According to the different requirements of power supply voltage, current and power, the electronic components and circuits in the basic circuit of three-phase full-wave rectification are adjusted accordingly. For example: the three-phase fully controlled diode thyristor rectifier circuit is mainly for small power motors, the three-phase fully controlled MOS tube rectifier circuit is mainly for small and medium power motors, and the three-phase fully controlled IGBT tube rectifier circuit is mainly for Large and medium power motors, especially large power motors, need to be borne by more complex integrated rectifier circuits, forming different series of controller products; in order to improve the power supply quality, the controller needs to go through single-chip control logic, frequency conversion voltage regulation, pulse width regulation, voltage and current stabilization, filtering circuit, intelligent control circuit regulation and super capacitor charging and discharging circuit switching switch to form a control center integrator during the rectification process. The appropriately configured super capacitor has a great effect on instantly improving the electromagnetic field strength of the stator DC coil, which can directly affect the instantaneous output power of the rotor. The controller is equipped with several sockets for connecting the intelligent control circuit adjustment, which will supply the half sine wave or modified wave pulse current with the upper half waveform and the lower half waveform respectively to the two large combined pairs of coils in the stator coil to generate a rotating magnetic field;The silicon steel laminates of the rotor have a squirrel cage structure made of copper or aluminum. Grooves are opened on the silicon steel laminates of the rotor in the gaps between the cage bars. The rotor permanent magnets are installed in the grooves. The ratio of the number of slots between the stator and rotor and the wiring method of the coils adopt the standard design of conventional rotating motors. The closed squirrel cage bars on the rotor generate torque by cutting the rotating magnetic lines of force, which drives the rotor to rotate in the same direction and can determine the direction of rotation at zero start. The permanent magnets on the rotor are also driven by the composite magnetic field of the stator to rotate the rotor. In order to dissipate heat, wrinkles and patterns are made on the surface of the outer shell to increase the surface area of ​​the outer shell. Fixed fan blades are attached to the rotor, and air cooling or water cooling devices can be used outside the casing. The special permanent magnet motor has a stator-type structure or an outer shell inside a rotating shell. The fixed rotating inner pivot structure, the inner and outer shell structure styles of the rotor and stator are designed and set according to the requirements of the matching equipment, so as to meet the overall requirements of the equipment; the terminal ends of the lead wires of its stator coil winding are pre-connected to a special plug with 6 live wire plugs and 1 neutral wire plug, a total of 7 plugs, according to the design requirements. When in use, the special plug is plugged into the matching special socket. The number and cross-sectional shape of the metal rods of the special plug are completely consistent with the holes of the special socket. The power output line of the controller is connected to a special socket with 6 live wire jacks and 1 neutral wire jack, a total of 7 jacks. This is not only convenient to use but also safe and reliable; there are two threading holes on the shell that are connected to the junction box, and there is a wire outlet on the junction box. ;

[0004] The technical solution provided by the present invention is: a special permanent magnet motor, comprising four parts: a stator, a rotor, a housing and an external controller; a plurality of identical wire slots and a plurality of identical coil windings are arranged on a silicon steel laminated sheet magnetic core of the stator, a plurality of identical grooves are arranged in the magnetic core, a stator permanent magnet is installed in the groove, two identical stators A and stators B are installed on the same axis to form a stator structure, a magnetic flux sleeve is connected in the interval between the stator A and the stator B and accommodates the exposed part of the coil, the connection between the stator A and the stator B and the magnetic flux sleeve forms a U-shaped magnet space structure, and when positive and negative sinusoidal wave pulse direct current is passed through the stator coil, dynamic sinusoidal pulses are generated. Composite magnetic field, under the control of three-phase full-wave rectifier power supply, this composite magnetic field forms a rotating magnetic field effect at the air gap position, driving the rotor to rotate; the material of the flux sleeve is made of good magnetic conductive silicon wafer or pure iron; when the rotor cage closed structure has no tilt angle, stator A and stator B are installed with a tilt angle, the tilt angle is the angle of a wire slot, or when the rotor cage closed structure has a tilt angle, stator A and stator B are installed without a tilt angle; the polarity of the permanent magnet installed on stator A is opposite to that of the permanent magnet installed on stator B, and the polarity of the installed stator permanent magnet is the same as the electromagnetic polarity of the corresponding stator coil electromagnetic field; stator silicon steel sheet The grooves are of two types, closed and open, which overlap each other to form a stator core with a fence shape; when stator A is supplied with positive pulse direct current, stator B is supplied with reverse pulse direct current, so that when stator A coil is energized, the other stator B is in a power-off state, and they operate alternately, and the polarity of the electromagnetic field generated in the corresponding two stator coils is also opposite. A stator coil unit is composed of several groups of two identical coils and a magnetic core that are supplied with positive or reverse current respectively, and a phase sequence coil is composed of 3 identical stator coil units. Each three groups of phase sequence coils constitute an A+, B+, C+ and A-, B-, C- and O line. The terminal combination, such positive and negative relative combination and several integer multiples of the same coil unit combination constitute a complete stator coil; the minimum width of the silicon steel sheet between two adjacent stator slots is less than the stator yoke height; the rotor, including the rotor silicon steel core, the closed squirrel cage on the core and the rotor permanent magnet in the groove, constitutes the rotor structure; the controller outputs a three-phase full-wave rectified DC power supply with the same positive and negative sine waves or modified wave pulse half-wave, which is connected to the 7 outlet terminals of the stator coil through a special plug and socket; there are two threading holes on the outer shell connected to the junction box; in order to dissipate heat, wrinkles and patterns are made on the surface of the outer shell to increase the surface area of ​​the outer shell.

[0005] The special permanent magnet motor has grooves and openings in the stator silicon steel core, and the surface is fence-shaped after stacking, so that the permanent magnets installed in the grooves have obvious alternating exposed spaces, and several stator permanent magnets with the same polarity are installed in the same groove. The electromagnetic field strength generated by the energized coil must be close to or less than the constant magnetic field strength value of the stator permanent magnet when the power is off; the effective magnetic length L of the stator is composed of a whole section or several identical sections; the coil is wound with enameled copper wire or copper conductor, and several stator coil units constitute a complete stator core; the output ends cannot be interchanged with each other, because the input half-wave current has the characteristics of direct current, with a distinction between positive and negative poles, and will be burned if connected incorrectly! When replacing the connectors, the positive and negative connectors A+ and A- of the phase sequence should be replaced with the other phase sequence B+ and B-, or with C+ and C-, which can change the direction of rotation; the stator permanent magnet is installed in the silicon steel groove, and the side is separated by aluminum plate to prevent permanent magnetic field leakage. The high thermal conductivity graphite film material is used for lining and heat dissipation. The surface of the permanent magnet is nickel-plated for rust prevention. The current actually flowing in the double-layer coil in the slot is in the AC electromagnetic field state during the amplitude period, and the same impedance value is generated in each related slot coil segment; in order to save energy, the energized coil is generated The electromagnetic field strength must be close to or less than the constant magnetic field strength value of the permanent magnet on the surface of the stator sealing groove when the power is off; the effective magnetic length L of the stator is composed of a whole section or several identical sections, which is conducive to the optimization of the aspect ratio; the coil windings in the wire slots are all double-layer windings, and several stator coil units constitute a complete stator core, showing that the performance of the stator core composed of stator coil units can adapt to the principle of diversity; it should be rotatable by hand when stopped to prevent locking; the laminated silicon steel sheets and coils need to be insulated and withstand voltage treatment.

[0006] The power supply of the special permanent magnet motor is input by the controller. The controller has several series of products according to the power supply and configuration. The power supply to the controller is divided into three-phase power supply of the power plant or battery DC power supply or solar cell and other power supplies. If the input is a three-phase AC power supply, it is directly connected to the matching controller for rectification and output. If the input power is DC, it needs to be oscillated by a three-phase inverter first and then input into the controller for rectification and output. The main basic circuit of rectification in the controller is a three-phase full-wave rectification circuit, which generates a three-phase sinusoidal pulse half wave. According to the different requirements of the power supply voltage, current and power, the electronic components and circuits in the three-phase full-wave rectification basic circuit are adjusted accordingly to form different series of controller products. In order to improve the power supply quality, the controller also needs to undergo a single The control center integrator is composed of microcontroller control logic or chip, frequency conversion voltage regulation, pulse width regulation, voltage and current stabilization, filtering circuit, intelligent control circuit regulation and supercapacitor charging and discharging circuit switching switch. The appropriately configured supercapacitor has the function of instantly increasing the electromagnetic field strength of the stator DC coil, directly affecting the instantaneous output power of the rotor. The controller is provided with several sockets for connecting the intelligent control circuit regulation, which separately supplies the half-sine wave or modified wave pulse current with the upper and lower half waveforms to the two large combinations of paired coils in the stator coil; through the precise control of the controller, the special permanent magnet motor has the functional characteristics of AC, DC, servo, stepper and other motors. Such a special permanent magnet motor can show different functional characteristics due to the configuration of different dedicated controllers, which greatly expands the field of supporting services.

[0007] The special permanent magnet motor has several lead wire connection terminals of its stator coil winding pre-connected to a special plug according to design requirements. When in use, the special plug is plugged into a matching 7-hole special socket. The number and cross-sectional shape and size of the metal plug rods of the special plug are completely consistent with the holes of the special socket. The power output line and other function control output lines of the controller are pre-connected to the special socket according to design requirements and should comply with the GB standard for safety electrical appliances.

[0008] The special permanent magnet motor has a squirrel cage structure made of copper or aluminum on the silicon steel laminated sheets of its rotor, grooves are opened on the rotor silicon steel laminated sheets in the gaps between the squirrel cage bars, the rotor permanent magnets are installed in the grooves, and guide grooves connecting the grooves, magnetic isolation grooves on the rotor surface, and the main shaft form a complete rotor structure; the rotor and the stator surface are separated by an air gap, the turntable can rotate freely around the main shaft without locking when static, closed rings are provided at both ends of the rotor core, the closed rings are made of aluminum or copper, and the rotor is provided with a dynamic balancing adjustment iron ring and a fan.

[0009] The special permanent magnet motor has a rotating shell internal stator type structure or a shell fixed rotating internal hub type structure. The internal and external shell structural styles of the rotor and stator are designed and arranged according to the requirements of the supporting equipment so as to meet the overall requirements of the equipment. The electromagnetic phenomena and electromechanical energy conversion principles occurring in the two forms of stators and rotors are basically the same, and there are many common technologies. The rotating shell internal stator type AC permanent magnet motor forms different types due to different rotating shell connection configurations. For example, if a tire is configured on the rotating shell, it becomes a special permanent magnet motor wheel hub of the vehicle. If a gear or pulley or rotating shaft is configured on the rotating shell, it is a direct drive special permanent magnet motor of mechanical equipment. The rotating shell with blades is the main power unit of the helicopter. Because the moment of inertia is proportional to the square of the radius, the moment of inertia of the rotating shell type is larger than that of the inner hub type. The shell is made of high-strength magnetic isolation material. The main shaft has a solid core at one end and a hollow core at the other end. There are stators A and B on the main shaft and two threading holes that lead to the hollow threading holes of the main shaft. A cooling device should be added, and waterproof bearings, sleeves and washers should be used. The special permanent magnet motor starts working when the power is turned on, and stops running when the power is turned off.

[0010] The beneficial effects of the present invention are as follows: the present invention provides a green and safe special permanent magnet motor with novel structure, energy saving and noise reduction, and reliable operation. The controller is required to output several groups of pulsed sinusoidal half-wave direct current to supply the stator coil of the magnetic motor. Several groups of stator coils of stator A and stator B installed at the same axis position form a rotating magnetic field at the air gap, so that the rotor is forced to rotate and output power. The advantages of the above structure of the traditional AC motor are retained, and the design and manufacture follow the GB motor specifications. At the same time, its own permanent magnet magnetic field characteristics and features are added, and on this basis, strong permanent magnets are introduced to participate in the rotor and stator structure to form a new rotor combination structure and a new stator combination structure; the noise decibel data is reduced; it is suitable for use in various voltage conditions, and it needs to be configured to provide three-phase AC when used. The power supply is used after rectification. When a battery DC power supply is used, it needs to be oscillated by the inverter and then rectified and voltage-regulated by the frequency converter to turn it into a suitable pulse DC source. The scope of use has also been expanded a lot. This machine is a green and environmentally friendly new energy source, close to zero emissions and zero pollution, energy saving and noise reduction, low use cost, low failure rate, can instantly increase the composite magnetic field strength to increase output power, and can work stably for a long time in an airless environment. Through a special controller, it can have the functional characteristics of AC, DC, servo, stepper and other motors, and is widely used in various power equipment, such as as a power source in special environmental conditions, a mobile robot power source, a yacht power source, a helicopter power source, a ship power source, a mobile equipment power source, and various types of exclusive equipment power sources for military and civilian innovations, with high social and economic value. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic AA cross-sectional view of a special permanent magnet motor with a fixed housing and an inner rotor of the present invention.

[0012] Figure 2 It is a BB cross-sectional schematic diagram of the special permanent magnet motor with a fixed housing and an inner rotor type according to the present invention.

[0013] Figure 3 It is a cross-sectional schematic diagram of the sealing groove of the stator silicon steel sheet of the rotor type in the fixed housing of the special permanent magnet motor of the present invention.

[0014] Figure 4 It is a cross-sectional schematic diagram of the opening groove of the stator silicon steel sheet of the rotor type in the fixed housing of the special permanent magnet motor of the present invention.

[0015] Figure 5 It is a cross-sectional schematic diagram of a rotor silicon steel sheet of a rotor type in a fixed housing of a special permanent magnet motor of the present invention.

[0016] Figure 6 It is a schematic diagram of the waveform of the power output of the controller externally connected to the special permanent magnet motor of the present invention.

[0017] In the figure: 1. special permanent magnet motor, 2. stator, 3. rotor, 4. casing, 5. air gap, 6. stator permanent magnet, 7. stator core, 8. stator A, 9. stator B, 10. flux sleeve, 11. coil, 12. squirrel cage bar, 13. rotor permanent magnet, 14. magnetic isolation groove, 15. guide groove, 16. outlet, 17. rotor core, 18. open groove, 19. closed groove, 20. junction box, 21. black thick line A+ single-phase positive sinusoidal pulse half waveform schematic, 22. black thick line A- single-phase negative sinusoidal pulse half waveform schematic, 23. three-phase rectified sine or modified wave pulse positive half waveform, 24. three-phase rectified sine or modified wave pulse negative half waveform, 25. threading port, 26. main shaft, 27. closed loop, 28. dynamic balancing adjustment iron ring, 29. fan, 30. wire slot, 31. groove. DETAILED DESCRIPTION

[0018] In the present invention, referring to the above Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6As shown, the special permanent magnet motor 1 has a stator type in a rotating shell or a rotating inner hub type fixed in the shell; the special permanent magnet motor 1 includes four parts: a stator B, a rotor 3, a shell 4 and an external controller; a stator core 7 has a plurality of identical wire slots 30 and a plurality of identical coils 11, a stator core 7 has a plurality of identical grooves 31, a stator permanent magnet 6 is installed in the groove 31, two identical stators A8 and stator B9 are installed on the same axis to form a stator structure, a magnetic flux sleeve 10 is connected between the stator A8 and the stator B9 to accommodate the exposed part of the coil, and the connection between the stator A8 and the stator B9 and the magnetic flux sleeve 10 forms a U-shaped magnet space structure, and when positive and negative sinusoidal pulse direct current is passed into the stator coil 11, a magnetic flux sleeve 10 is generated. A dynamic sinusoidal pulse composite magnetic field is generated. Under the control of a three-phase full-wave rectifier power supply, this composite magnetic field forms a rotating magnetic field effect at the position of the air gap 5, driving the rotor to rotate; the material of the flux sleeve 10 is a good magnetic conductive silicon wafer or pure iron; when the closed structure of the rotor 3 squirrel cage bar 12 has no tilt angle, the stator A8 and the stator B9 are installed with an inclination angle, and the inclination angle is the angle of a wire slot 30, or when the closed structure of the rotor 3 squirrel cage bar 12 has an inclination angle, the stator A8 and the stator B9 are installed without a tilt angle; the polarity of the stator permanent magnet 6 installed on the stator A8 is opposite to the polarity of the stator permanent magnet 6 installed on the stator B9, and the polarity of the installed stator permanent magnet 6 is the same as the electromagnetic polarity of the corresponding stator coil 11 electromagnetic field; the silicon steel sheet of the stator B is concave The slots 31 have two types, closed slots 19 and open slots 18, which are overlapped to form a stator core 7 with a fence shape; when the stator A8 is supplied with positive pulse direct current, the stator B9 is supplied with reverse pulse direct current, so that when the stator A8 coil 11 is energized, the other stator B9 coil 11 is in a power-off state, and they operate alternately, and the polarity of the electromagnetic field generated in the corresponding two stator coils 11 is also opposite. A stator coil 11 unit is composed of several groups of two identical coils 11 respectively supplied with positive or reverse current and the stator core 7, and a phase sequence coil 11 is composed of three identical stator coil 11 units. Each three groups of phase sequence coils 11 constitute a connection terminal of A+, B+, C+ and A-, B-, C- and O lines. The stator coil 11 is a combination of positive and negative relative combinations and several integer multiples of the same coil 11 units. The minimum width of the silicon steel sheet between two adjacent stator slots 30 is less than the stator yoke height. The rotor 3 includes a rotor core 17, a closed squirrel cage bar 12 on the rotor core 17 and a rotor permanent magnet 13 in the groove 31, which constitute a rotor structure. The controller outputs a three-phase full-wave rectified DC power supply with the same positive and negative sine waves or modified pulse half-wave power supply, which is connected to the stator coil 11 through a special plug and socket and has 7 outlet terminals. The housing 4 has two threading holes 25 connected to the junction box 20, and the junction box 20 has an outlet 16. In order to dissipate heat, wrinkles and patterns are made on the surface of the housing 4 to increase the surface area of ​​the housing 4.

[0019] The special permanent magnet motor 1 has a closed groove 19 in the stator core 7, and the surface of the closed groove 19 and the open groove 18 after being superimposed presents a fence shape, so that the stator permanent magnet 6 installed in the groove 31 has obvious alternating exposed space, and a plurality of stator permanent magnets 6 with the same polarity are installed in the same groove 31. The electromagnetic field strength generated by the energized coil 11 must be close to or less than the constant magnetic field strength value of the stator permanent magnet 6 when the power is off; the effective magnetic length L of the stator is composed of a whole section or a plurality of identical sections; the coil 11 is wound with enameled copper wire or copper conductor, and a plurality of stator coil 11 units constitute a complete stator core 7; the outlet ends cannot be interchanged with each other, because the input half-wave current has the characteristics of direct current, and there is a distinction between positive and negative poles, and it will be burned if connected incorrectly! When the connectors are replaced, the positive and negative connectors A+ and A- of the phase sequence should be replaced with the other phase sequence B+ and B-, or with C+ and C-, which can change the direction of rotation; the stator permanent magnet 6 is installed in the silicon steel groove 31, and the side is separated by aluminum plate to prevent permanent magnetic field leakage, and the high thermal conductivity graphite film material is used for lining and heat dissipation. The surface of the stator permanent magnet 6 is nickel-plated to prevent rust. The current actually flowing in the double-layer coil 11 in the wire slot 30 is in the AC electromagnetic field state during the amplitude period, and the same impedance value is generated in each relevant wire slot 30 coil 11 section; in order to save energy, the energized coil 1 1 The electromagnetic field strength generated must be close to or less than the constant magnetic field strength value of the stator permanent magnet 6 on the surface of the groove 31 when the power is off; the effective magnetic length L of the stator is composed of a whole section or several identical sections, which is conducive to the optimization of the aspect ratio; the coil 11 windings in the wire slot 30 are all double-layer windings, and several stator coil 11 units constitute a complete stator core 7, showing that the performance of the stator core 7 composed of stator coil 11 units can adapt to the principle of diversity; it should be able to be rotated by hand when stopped and stationary to prevent locking; the laminated silicon steel sheets and the coil 11 need to be insulated and withstand voltage treated.

[0020] The power supply of the special permanent magnet motor 1 is input by the controller. The controller has several series of products according to the power supply and configuration. The power supply to the controller is divided into a three-phase power supply of a power plant or a battery DC power supply or a solar cell and other power supplies. If the input is a three-phase AC power supply, it is directly connected to the matching controller for output after rectification. If the input power is DC power, it needs to be oscillated by a three-phase inverter before being input into the controller for output after rectification. The main basic circuit of rectification in the controller is a three-phase full-wave rectifier circuit, which generates a three-phase sinusoidal pulse half-wave DC power supply, such as Figure 6In the diagram, the thick black line A+ single-phase positive sinusoidal pulse half waveform is shown as 21, the thick black line A- single-phase negative sinusoidal pulse half waveform is shown as 22, the three-phase rectifier sine or modified wave pulse positive half waveform 23, the three-phase rectifier sine or modified wave pulse negative half waveform 24, according to the different requirements of the power supply voltage, current and power, the electronic components and circuits in the three-phase full-wave rectifier basic circuit are adjusted accordingly, for example: the three-phase fully controlled diode thyristor rectifier circuit is mainly for small power motors, the three-phase fully controlled MOS tube rectifier circuit is mainly for small and medium power motors, and the three-phase fully controlled IGBT tube rectifier circuit is mainly for large and medium power motors. Extra-large power must be borne by a more complex integrated rectifier circuit to form different series of controller products; in order to improve the power supply quality and intelligent level, the controller also needs to go through a single chip during the rectification process. The control center integrator is composed of machine control logic or chip, frequency conversion voltage regulation, pulse width regulation, voltage and current stabilization, filtering circuit, intelligent control circuit regulation and super capacitor charging and discharging circuit switching switch. The appropriately configured super capacitor has the function of instantly increasing the electromagnetic field strength of the stator DC coil, directly affecting the instantaneous output power of the rotor. The controller is provided with several sockets for connecting the intelligent control circuit regulation, which separately supplies the half sine wave or modified wave pulse current with the upper half waveform and the lower half waveform to the two large combinations of paired coils in the stator coil; through the precise control of the controller, the special permanent magnet motor 1 has the functional characteristics of AC, DC, servo, stepping and other motors. Such a special permanent magnet motor 1 can show different functional characteristics due to the configuration of different special controllers, which greatly expands the field of supporting services.

[0021] The special permanent magnet motor 1 has a squirrel cage structure made of copper or aluminum on the silicon steel laminated sheets of its rotor 3, a groove 31 is opened on the rotor core 17 in the gap between the squirrel cage bars 12, the rotor permanent magnet 13 is installed in the groove 31, and the guide groove 15 connecting the groove 31, the magnetic isolation groove 14 on the surface of the rotor 3, and the main shaft 26 constitute a complete rotor structure; the rotor 3 is separated from the surface of the stator B by an air gap 5, and the rotor 3 can rotate freely around the main shaft without locking in static state, and closed rings 27 are provided at both ends of the rotor core 17, and the closed ring 27 is made of aluminum or copper. The rotor 3 is provided with a dynamic balancing adjustment iron ring 28 and a fan 29.

[0022] The special permanent magnet motor 1, its stator coil 11 winding several lead wire terminals are pre-connected to a special plug with 6 live wire plugs and 1 neutral wire plug, a total of 7 plugs, according to design requirements. When in use, the special plug is plugged into a matching special socket. The number and cross-sectional shape and size of the metal rods of the special plug are completely consistent with the special socket holes. The power output line of the controller is connected to a special socket with 6 live wire jacks and 1 neutral wire jack, a total of 7 jacks, which should comply with the GB standard for safety electrical appliances.

[0023] The above description is only a preferred embodiment of the present invention and should not limit the scope of implementation of the present application. That is, all equivalent changes and modifications made within the scope of the present application should still fall within the scope of the present invention.

Claims

1. Special permanent magnet motor, characterized by: It includes four parts: a stator, a rotor, a casing and an external controller; the stator silicon steel laminated core has a number of identical wire slots and a number of identical coil windings, the core has a number of identical grooves, the stator permanent magnets are installed in the grooves, two identical stators A and stator B are installed on the same axis to form a stator structure, the interval between stator A and stator B is connected by a flux sleeve and accommodates the exposed part of the coil, the connection between stator A and stator B and the flux sleeve forms a U-shaped magnet space structure, when positive and negative sinusoidal pulse direct current is passed through the stator coil, a dynamic sinusoidal pulse composite magnetic field is generated, under the control of a three-phase full-wave rectifier power supply, this composite magnetic field forms a rotating magnetic field effect at the air gap position, driving the rotor to rotate; when the rotor cage closed structure has no tilt angle state, stator A and stator B have a tilt angle when installed, and the tilt angle is the angle of a wire slot, or when the rotor cage closed structure has a tilt angle state, stator A and stator B have no tilt angle when installed; the polarity of the permanent magnet installed on stator A and the polarity of the permanent magnet installed on stator B The polarity of the stator permanent magnet is opposite, and the polarity of the installed stator permanent magnet is the same as the electromagnetic polarity of the corresponding stator coil electromagnetic field; the stator silicon steel sheet grooves have two types of closed and open mouths, which overlap each other to form a stator core with a fence shape; when the stator A coil is connected to the positive pulse DC, the stator B coil is connected to the reverse pulse DC, so that when the stator A coil is energized, the other stator B coil is in the power-off state, and the electromagnetic fields operate alternately. A number of groups of identical stator coil units constitute a phase sequence coil, and each three groups of phase sequence coils constitute a phase sequence coil. A combination of A+, B+, C+ and A-, B-, C- and O-line connection terminals is formed to form a complete stator coil; the minimum width of the silicon steel sheet between two adjacent stator slots is less than the stator yoke height; the rotor includes a rotor silicon steel magnetic core, a closed squirrel cage on the magnetic core and a rotor permanent magnet in the groove, forming a rotor structure; the controller outputs a three-phase full-wave rectified DC power supply with the same positive and negative sine waves or modified pulse half-wave, which is connected to the 7 outgoing terminals of the stator coil through a special plug and socket; The invention also includes a stator silicon steel magnetic core having grooves in the stacked surface in a fence shape, so that the permanent magnets installed in the grooves have obvious alternate exposed spaces, and a plurality of stator permanent magnets with the same polarity are installed in the same groove; the effective magnetic length L of the stator is formed by adding the segmented effective magnetic lengths of stator A and stator B; the coil is made of enameled copper wire or copper conductor bar; It also includes a rotor silicon steel core, closed squirrel cage bars on the core, rotor permanent magnets in grooves, guide grooves connecting the grooves, magnetic isolation grooves on the rotor surface, a closed ring and a fan, forming a complete rotor structure.

2. The special permanent magnet motor according to claim 1, characterized in that: Including, the external controller is based on three-phase full-wave rectification, and is composed of a control center integrator through inversion, control logic, frequency conversion and voltage regulation, pulse width regulation, voltage and current stabilization, intelligent control circuit regulation, and supercapacitor charging and discharging circuit switching switch. The controller is equipped with a number of sockets for connecting intelligent control circuit regulation; the power supply is input by the controller, and the power supply to the controller is a three-phase power supply from a power plant or a DC power supply from a battery pack or a variety of power supplies from solar cells. If the input is a DC power supply, it must first be oscillated through an inverter to output a sinusoidal wave or modified wave AC power supply to the controller, or if the input is a three-phase AC power supply, it can be directly supplied to the controller. The controller then undergoes rectification, frequency conversion and voltage and current stabilization to supply the stator coil and other ancillary equipment in the system with a sinusoidal wave or modified wave pulse DC power supply with the same upper and lower half waveforms respectively; through the precise control of the controller, the special permanent magnet motor has the functional characteristics of AC, DC, servo, and stepper motors.

3. The special permanent magnet motor according to claim 1, characterized in that: The shell is provided with two threading holes which are connected with the junction box.

4. The special permanent magnet motor according to claim 1, characterized in that: Including, having a rotating outer shell and stator type structure or an outer shell fixed rotating inner hub type structure; the electromagnetic principles and components of the two are the same, the positions of the rotor and the stator are interchanged, the rotating outer shell and the rotating inner hub are both composed of the rotor structure plus the rotor outer shell or the rotor main shaft inner hub, and the stator also has a stator main shaft inner hub or a stator outer shell and is formed to match the corresponding rotor.

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