A multifunctional electromagnetic torque converter and hybrid system composed of the same

Abstract

The present invention relates to a multifunctional electromagnetic torque converter and a hybrid system composed of the same. The converter comprises a housing, an input shaft, an output shaft, a clutch plate, an inner rotor fixedly mounted on the input shaft, and a plurality of permanent magnets are evenly distributed on the outer circumference of the inner rotor; a stator winding No. 1 is coaxially sleeved outside the inner rotor, and a plurality of coil windings are arranged on its inner circumference, and the coil windings of the stator winding No. 1 and the permanent magnets of the inner rotor form a first coupling group of mutual magnetic coupling; a stator winding No. 2 is coaxially arranged with the stator winding No. 1, and a plurality of coil windings are arranged on its outer circumference, and the second ring sleeve is fixed on the housing; an outer rotor fixedly mounted on the output shaft comprises a circular plate and an annular cylinder, and a plurality of permanent magnets are evenly distributed on the inner circumference of the annular cylinder, and the permanent magnets of the outer rotor and the coil windings of the stator winding No. 2 form a second coupling group of mutual coupling; the number of magnetic poles of the first coupling group and the second coupling group are different. The converter has multiple functions such as a torque converter, a clutch, power generation, a synchronizer, a hybrid, a starter, and brake energy recovery.

Description

Technical Field

[0001] The invention relates to a multifunctional electromagnetic torque converter and a hybrid system formed by the same. Background Art

[0002] A hybrid vehicle is a vehicle that is capable of deriving its power from at least two types of on-board stored energy: consumable fuel; and rechargeable energy / energy storage device.

[0003] The hybrid system used in hybrid vehicles generally includes an engine, motor, clutch, transmission, torque converter, battery pack and control system, etc. It has many parts, occupies a large volume, is heavy, has a high cost and high energy consumption. The torque converter has a single function, and traditional hydraulic torque converters are prone to impeller overheating and oil leakage during transmission. Summary of the invention

[0004] The object of the present invention is to provide a multifunctional electromagnetic torque converter which integrates the functions of a torque converter, a clutch, a synchronizer and a starter and can realize hybrid and power generation functions; the object of the present invention is also to provide a hybrid system using the above-mentioned multifunctional electromagnetic torque converter.

[0005] The technical solution of the multifunctional electromagnetic torque converter of the present invention is as follows:

[0006] The multifunctional electromagnetic torque converter includes:

[0007] case;

[0008] An input shaft, used for transmission connection with the engine;

[0009] The output shaft is used for transmission connection with the gearbox and is coaxially arranged with the input shaft;

[0010] The clutch plate is fixed to the end of the input shaft away from the engine and can move axially relative to the housing to realize the clutch function;

[0011] The inner rotor is fixedly assembled on the input shaft and is matched with the input shaft in a circumferential direction. A plurality of permanent magnets are evenly distributed on the outer circumference of the inner rotor.

[0012] A first stator winding is sleeved outside the inner rotor and is coaxially arranged with the inner rotor, comprising a first ring sleeve and a plurality of coil windings uniformly distributed on the inner circumference of the first ring sleeve, the first ring sleeve is fixed on the housing, and the coil winding of the first stator winding and the permanent magnet of the inner rotor form a first coupling group that is magnetically coupled to each other;

[0013] The second stator winding is coaxially arranged with the first stator winding, and comprises a second ring sleeve and a plurality of coil windings uniformly distributed on the outer circumference of the second ring sleeve, and the second ring sleeve is fixed on the housing;

[0014] The outer rotor is fixedly mounted on the output shaft and is fixedly connected to the output shaft. The outer rotor is sleeved outside the second stator winding and includes a circular plate and an annular cylinder. The side surface of the circular plate away from the output shaft has a friction portion for contacting the clutch plate. The inner circumference of the annular cylinder is evenly distributed with a plurality of permanent magnets. The permanent magnets of the outer rotor and the coil winding of the second stator winding form a second coupling group that is coupled to each other.

[0015] The first coupling group and the second coupling group have different numbers of magnetic poles to achieve variable pitch;

[0016] A controller, electrically connected to the first stator winding and the second stator winding, respectively, and the controller is also used to connect to the battery pack;

[0017] The first stator winding and the second stator winding are located on both sides of the circular plate respectively;

[0018] The controller includes a winding controller No. 1 for controlling a stator winding No. 1, a winding controller No. 2 for controlling a stator winding No. 2, and a coupling controller for realizing coordinated control between the winding controller No. 1 and the winding controller No. 2, and also includes a master controller.

[0019] Furthermore, the second stator winding is sleeved outside the first stator winding, and the multifunctional electromagnetic torque converter also includes a shielding cover arranged between the first stator winding and the second stator winding, and the shielding cover is fixed on the shell.

[0020] Furthermore, the shielding cover is in a cylindrical shape.

[0021] The technical solution of the hybrid system of the present invention is as follows: the hybrid system includes a battery pack, a controller, an engine, a gearbox and an electromagnetic torque converter, and the electromagnetic torque converter includes a housing;

[0022] An input shaft, used for transmission connection with the engine;

[0023] The output shaft is used for transmission connection with the gearbox and is coaxially arranged with the input shaft;

[0024] The clutch plate is fixed to the end of the input shaft away from the engine and can move axially relative to the housing to realize the clutch function;

[0025] The inner rotor is fixedly assembled on the input shaft and is matched with the input shaft in a circumferential direction. A plurality of permanent magnets are evenly distributed on the outer circumference of the inner rotor.

[0026] A first stator winding is sleeved outside the inner rotor and is coaxially arranged with the inner rotor, comprising a first ring sleeve and a plurality of coil windings uniformly distributed on the inner circumference of the first ring sleeve, the first ring sleeve is fixed on the housing, and the coil winding of the first stator winding and the permanent magnet of the inner rotor form a first coupling group that is magnetically coupled to each other;

[0027] The second stator winding is coaxially arranged with the first stator winding, and comprises a second ring sleeve and a plurality of coil windings uniformly distributed on the outer circumference of the second ring sleeve, and the second ring sleeve is fixed on the housing;

[0028] The outer rotor is fixedly mounted on the output shaft and is fixedly connected to the output shaft. The outer rotor is sleeved outside the second stator winding and includes a circular plate and an annular cylinder. The side surface of the circular plate away from the output shaft has a friction portion for contacting the clutch plate. The inner circumference of the annular cylinder is evenly distributed with a plurality of permanent magnets. The permanent magnets of the outer rotor and the coil winding of the second stator winding form a second coupling group that is coupled to each other.

[0029] The first coupling group and the second coupling group have different numbers of magnetic poles to achieve variable pitch;

[0030] A controller, electrically connected to the first stator winding and the second stator winding, respectively, and the controller is also used to connect to the battery pack;

[0031] The first stator winding and the second stator winding are located on both sides of the circular plate respectively;

[0032] The controller includes a winding controller No. 1 for controlling a stator winding No. 1, a winding controller No. 2 for controlling a stator winding No. 2, and a coupling controller for realizing coordinated control between the winding controller No. 1 and the winding controller No. 2, and also includes a master controller.

[0033] Furthermore, the second stator winding is sleeved outside the first stator winding, and the multifunctional electromagnetic torque converter also includes a shielding cover arranged between the first stator winding and the second stator winding, and the shielding cover is fixed on the shell.

[0034] Furthermore, the shielding cover is in a cylindrical shape.

[0035] Beneficial effects of the present invention: When the electromagnetic torque converter and the corresponding hybrid system of the present invention are in use, they can realize a variety of different functions under different working conditions through the control of the controller, such as: through the transmission of the two coupling groups, due to the different pole numbers of the two coupling groups, the transmitted torque is also different, which can replace the traditional hydraulic torque converter to realize the variable pitch function; the axial movement of the clutch plate can realize the function of the clutch with the friction part of the outer rotor; the rotation of the input shaft and the output shaft can generate electrical energy for the corresponding stator windings respectively to realize the function of power generation; supplying power to the No. 1 stator winding alone can drive the input shaft to rotate to realize the function of the starter; when at least one of the two stator windings is powered, it can drive the corresponding inner rotor or outer rotor to rotate, and cooperate with the output of the engine to realize the functions of strong hybrid and two weak hybrids; the function of the synchronizer can be realized by controlling the two stator windings and the clutch by the controller; when the vehicle brakes, the rotation of the outer rotor or the inner rotor can be used to generate current for the corresponding stator winding to realize the function of braking energy recovery; when the No. 2 stator winding is powered alone, the output shaft can be driven to rotate alone to realize the function of pure electric; it can be seen. It has many functions, simple structure, few parts, light weight, small size and low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 A perspective view of a first embodiment of a multifunctional electromagnetic torque converter of the present invention;

[0037] Figure 2 for Figure 1 A cross-sectional view of

[0038] Figure 3 for Figure 1 Exploded diagram of (showing the control circuit);

[0039] Figure 4 is a cross-sectional view of embodiment 2 of the multifunctional electromagnetic torque converter of the present invention;

[0040] In the figure: 1-input shaft, 2-housing, 3-inner rotor, 4-permanent magnet, 5-No. 1 stator winding, 6-coil, 7-shielding cover, 8-No. 2 stator winding, 9-clutch plate, 10-outer rotor, 11-output shaft, 12-No. 1 winding controller, 13-No. 2 winding controller, 14-coupling controller, 15-battery pack. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical scheme and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention, that is, the embodiments described are only part of the embodiments of the present invention, rather than all of the embodiments. The components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0042] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present invention.

[0043] It should be noted that relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0044] The features and performance of the present invention are further described in detail below in conjunction with the embodiments.

[0045] Embodiment 1 of the multifunctional electromagnetic torque converter of the present invention: Figure 1-3 As shown, the multifunctional electromagnetic torque converter includes an input shaft 1, a housing 2, an inner rotor 3, a permanent magnet 4, a first stator winding 5, a coil 6, a shielding cover 7, a clutch plate 9, an outer rotor 10, an output shaft 11 and a release bearing (not shown in the figure), etc. The input shaft 1 is coaxially arranged with the output shaft 11, and the outer rotor 10, the second stator winding 8, the shielding cover 7, the first stator winding 5 and the inner rotor 3 are concentrically arranged.

[0046] The housing 2 (only a partial structure is shown in the figure) is the outer shell of the electromagnetic torque converter, and the electromagnetic torque converter is fixed to the hybrid vehicle through the housing 2.

[0047] One end of the input shaft 1 is connected to the engine control, and the other end passes through the release bearing, the inner rotor 3, the shielding cover 7, and the clutch plate 9 in sequence, wherein the release bearing sliding sleeve is arranged on the input shaft 1, and the shielding cover 7 is sleeved on the input shaft 1, but does not contact the input shaft 1, but is fixed relative to the housing 2. The inner rotor 3 and the clutch plate 9 are fixed to the input shaft 1 by a key or other detachable fixing structure.

[0048] The inner rotor 3 includes inner and outer sleeve parts which are sleeved with each other and a connecting ring plate part which is vertically connected between the inner and outer sleeve parts. The inner diameter of the inner sleeve part is consistent with the outer diameter of the input shaft 1. The outer circumference of the outer sleeve is evenly distributed with a plurality of permanent magnet parts made of permanent magnets 4.

[0049] The No. 1 stator winding 5 includes an annular frame, an iron core and a plurality of coil windings 6 uniformly distributed along the circumferential direction. The coil winding 6 is located on the inner circumference of the annular frame. The outer circumferential surface of the annular frame is smooth. The number of coils 6 corresponds to the number of permanent magnets 4 of the inner rotor 3. The No. 1 stator winding 5 is fixed to the housing 2 through the annular frame. The No. 1 stator winding 5 and the inner rotor 3 form a mutually coordinated combination. When the input shaft 1 drives the inner rotor 3 to rotate, current can be generated in the No. 1 stator winding 5. Conversely, when the battery pack 15 supplies power to the No. 1 stator winding 5, it can drive the inner rotor 3 to rotate.

[0050] The No. 2 stator winding 8 includes an annular frame, an iron core and a plurality of coil windings 6 uniformly distributed along the circumferential direction. The coil winding 6 is located on the outer circumference of the annular frame. The inner circumference of the annular frame is smooth. The number of coils 6 corresponds to the number of permanent magnets 4 of the outer rotor 10. The No. 2 stator winding 8 is fixed to the housing 2 through the annular frame. The No. 2 stator winding 8 and the outer rotor 10 form a mutually coordinated combination. When the No. 2 stator winding 8 is powered, the outer rotor 10 can be driven to drive the output shaft 11 to rotate. Conversely, when the outer rotor 10 rotates, current can be formed in the No. 2 stator winding 8.

[0051] The shielding cover 7 is barrel-shaped and made of metal. It is arranged between the No. 1 stator winding 5 and the No. 2 stator winding 8 to prevent electromagnetic interference between the two stator windings. Its open end is fixed to the outer casing, and the rest of the part has no contact with other components to prevent failure.

[0052] The structure of the clutch plate 9 is the prior art, and it can be pressed toward the bottom surface of the outer rotor 10 under the action of the spring, and is engaged with the outer rotor 10 as a whole by friction force to achieve the purpose of synchronous rotation. When the release bearing is moved by the shift fork, the clutch plate 9 is driven to break contact with the outer rotor 10. When the release bearing is released, the clutch plate 9 automatically engages with the outer rotor 10 under the action of the spring.

[0053] The outer rotor 10 is barrel-shaped and includes an annular sleeve portion and a circular plate portion. The outer surface of the annular sleeve portion is smooth, and a plurality of permanent magnets 4 are evenly distributed circumferentially on the inner surface. The side of the circular plate portion facing the clutch plate 9 has a friction portion for contacting the clutch plate 9, and the side of the circular plate portion away from the clutch plate 9 has an outwardly convex tubular structure. The tubular structure has an inner hole with the same diameter as the output shaft 11. The output shaft 11 is fixed in the inner hole of the tubular structure, so that the output shaft 11 and the outer rotor 10 form an integral structure.

[0054] The permanent magnets on the inner rotor and the outer rotor are fixed in a manner of being evenly distributed and inlaid. In other embodiments, multiple permanent magnets can also be integrated into one integral permanent magnet.

[0055] In order to realize various functions of the electromagnetic torque converter, corresponding controllers are also required, such as the No. 1 winding controller 12, the No. 2 winding controller, the coupling controller 14 and the battery pack 15.

[0056] During use:

[0057] 1. Replace the traditional torque converter, clutch, generator, starter, with high transmission efficiency, and can be widely used in automatic and manual transmission gearboxes. The implementation method is as follows:

[0058] Torque converter function: Move the release bearing to the right to interrupt the contact between the clutch plate 9 and the outer rotor 10, and connect the input shaft 1 to the power source (other power sources such as the internal combustion engine). When the power source such as the internal combustion engine drives the inner rotor 3 to rotate, the No. 1 stator winding 5 generates electricity, and supplies power to the No. 2 stator winding 8 through the coupling controller 14. The coil 6 of the No. 2 stator winding 8 generates a magnetic field and couples with the permanent magnet 4 of the outer rotor 10 to drive the outer rotor 10 to rotate. The rotation of the outer rotor 10 drives the output shaft 11 to output power to the transmission. Since the number of poles of the No. 1 stator winding 5 and the No. 2 stator winding 8 is different, the torque is different when changing from the No. 1 stator winding 5 to the No. 2 stator winding 8, thereby realizing the change of torque. Moreover, under the premise of unchanged power, the more poles the motor has, the lower the speed is, and the greater the output torque is. Conversely, the fewer poles the motor has, the higher the speed is, and the smaller the output torque is. By adjusting the pole ratio between the No. 1 stator winding 5 and the No. 2 stator winding 8, different pitch-changing purposes can be achieved, such as increasing or decreasing. Pitch-changing working principle: the inner rotor 3 and the No. 1 stator winding 5 are equivalent to generators, and the outer rotor 10 and the No. 2 stator winding 8 are equivalent to drive motors. When the number of poles of the generator is less than that of the drive motor, the generator has a high speed and low torque, and the drive motor has a low speed and high torque, thus achieving torque change.

[0059] Clutch function: Release the release bearing, and the clutch plate 9 is driven to engage with the outer rotor 10 under the action of the spring, which can directly transmit power to realize the torque converter clutch function. Move the release bearing to the right to break the contact between the clutch plate 9 and the outer rotor 10.

[0060] Power generation function: When the clutch plate 9 is separated from the outer rotor 10, the inner rotor 3 is driven to rotate when the input shaft 1 rotates, and the permanent magnet 4 of the inner rotor 3 is coupled with the coil 6 of the No. 1 stator winding 5, so that current is generated in the coil 6 of the No. 1 stator winding 5. Under the control of the No. 1 winding controller 12, direct current can be output to the battery pack 15 or directly output to the No. 2 stator winding 8. When collecting energy during braking, the gearbox drives the outer rotor 10 to rotate synchronously, the permanent magnet 4 of the outer rotor 10 is coupled with the coil 6 of the second stator winding 8, and current is generated in the coil 6. Under the control of the second winding controller 13, direct current can be output to the battery pack 15; when the clutch plate 9 of the clutch is engaged with the outer rotor 10, the input shaft 1 and the output shaft 11 rotate synchronously under the drive of the internal combustion engine, or when collecting energy during braking, the inner rotor 3 and the outer rotor 10 rotate synchronously: the permanent magnet 4 of the outer rotor 10 is coupled with the coil 6 of the second stator winding 8, and current is generated in the coil 6. Under the control of the second winding controller 13, direct current can be output to the battery pack 15; the permanent magnet 4 of the inner rotor 3 is coupled with the coil 6 of the first stator winding 5, and current is generated in the coil 6. Under the control of the first winding controller 12, direct current can be output to the battery pack 15.

[0061] Starter function: When starting, the clutch plate 9 is separated from the outer rotor 10. Under the control of the No. 1 winding controller 12, the battery pack 15 supplies power to the No. 1 stator winding 5. The magnetic field generated by its coil 6 drives the inner rotor 3 to rotate, thereby driving the engine to start.

[0062] 2. Cooperate with the engine to realize hybrid function

[0063] (1) Starting a hybrid vehicle:

[0064] The clutch plate 9 is disengaged, and the No. 1 winding controller 12 supplies power to the No. 1 stator winding 5. The No. 1 stator winding 5 generates a magnetic field to drive the inner rotor 3 to rotate. The inner rotor 3 drives the engine to start through the input shaft 1. After the engine starts, the No. 2 winding controller 13 supplies power to the No. 2 stator winding 8. The No. 2 stator winding 8 generates a magnetic field to drive the outer rotor 10 to rotate. The rotation of the outer rotor 10 drives the gearbox to operate through the output shaft 11.

[0065] When the clutch is released and the clutch plate 9 engages with the outer rotor 10, the No. 1 winding controller 12 and the No. 2 winding controller 13 jointly supply power to the corresponding No. 1 stator winding 5 and No. 2 stator winding 8, respectively driving the inner rotor 3 and the outer rotor 10 to rotate, and combined with the output of the engine, the No. 1 unit and the No. 2 unit drive the gearbox together with the engine to achieve strong hybrid.

[0066] Release the clutch, the clutch plate 9 engages with the outer rotor 10, the No. 2 winding controller 13 does not supply power to the No. 2 stator winding 8, and the No. 1 winding controller 12 supplies power to the No. 1 stator winding 5, driving the inner rotor 3 to rotate, that is, the No. 1 unit and the engine jointly drive the gearbox to achieve the first weak hybrid. Alternatively, the No. 1 winding controller 12 does not supply power to the No. 1 stator winding 5, and the No. 2 winding controller 13 supplies power to the No. 2 stator winding 8, driving the outer rotor 10 to rotate, that is, the No. 2 unit and the engine jointly drive the gearbox to achieve the second weak hybrid.

[0067] (2) Vehicle gear shifting, synchronizer function: When the clutch plate 9 is separated from the outer rotor 10, the corresponding controller can be used to control the No. 1 unit, the No. 2 unit and the clutch to achieve smooth connection with the engine under different logics of gearbox upshifting or downshifting, thus playing the role of a synchronizer.

[0068] (3) When the vehicle decelerates and the kinetic energy is recovered to charge the battery pack 15 (braking energy recovery):

[0069] When the clutch is engaged, the gearbox transmits power to the output shaft 11, and the output shaft 11 drives the inner rotor 3 to rotate through the outer rotor 10, the clutch plate 9, and the input shaft 1. The permanent magnets 4 of the inner rotor 3 and the outer rotor 10 are respectively coupled with the corresponding stator winding No. 1 5 and stator winding No. 2 8, thereby generating current in the coils 6 of the two. Under the control of the corresponding controller, the generated direct current is stored in the battery pack 15, that is, the No. 1 unit and the No. 2 unit generate electricity together, which is converted into direct current through the controller, and the electrical energy is stored in the battery to achieve strong kinetic energy recovery.

[0070] When the clutch is disengaged, the outer rotor 10 rotates and the inner rotor 3 remains stationary. The gearbox drives the outer rotor 10 to rotate through the output shaft 11. The permanent magnet 4 of the outer rotor 10 is coupled with the No. 2 stator winding 8, so that direct current is generated in the coil 6 of the No. 2 stator winding 8. Under the control of the corresponding No. 2 winding controller 13, the electrical energy is stored in the battery pack 15, that is, the No. 2 unit is driven alone to generate electricity, thereby realizing weak kinetic energy recovery.

[0071] 3. Driving function in pure electric state

[0072] When the clutch plate 9 is separated from the outer rotor 10, the No. 2 stator winding 8 can be powered by the control of the No. 2 winding controller 13. The No. 2 stator winding 8 generates a magnetic field that couples with the permanent magnet 4 of the outer rotor 10, thereby driving the outer rotor 10 to rotate, driving the output shaft 11 to rotate, and the output shaft 11 drives the transmission parts of the gearbox to rotate, that is, the No. 2 unit is powered alone, and the vehicle can be driven purely electric.

[0073] Embodiment 2 of the multifunctional electromagnetic torque converter of the present invention: Figure 4As shown, the difference from Example 1 is that the No. 1 stator winding and the No. 2 stator winding are arranged separately instead of being nested with each other, that is, the No. 1 stator winding and the No. 2 stator winding are respectively located on both sides of the clutch plate, so that the distance between the two coupling units is farther, and accordingly, the shape of the shell is adaptively adjusted, and the shell is respectively connected to the No. 1 stator winding and the No. 2 stator winding, and then connected and fixed to the gearbox or fixed to other fixed bodies, and the shielding cover between the No. 1 stator winding and the No. 2 stator winding is cancelled.

[0074] An implementation manner of the hybrid system of the present invention includes a general controller, a battery pack 15, a No. 1 winding controller 12, a No. 2 winding controller 13, a coupling controller 14 and system lines, etc., and also includes an electromagnetic torque converter. The structure of the electromagnetic torque converter is the same as the structure in each embodiment of the above-mentioned multifunctional electromagnetic torque converter.

[0075] Specifically, the hybrid system includes a battery pack 15, a controller, an engine, a gearbox and an electromagnetic torque converter, the electromagnetic torque converter includes a shell 2; an input shaft 1, used for transmission connection with the engine; an output shaft 11, used for transmission connection with the gearbox, and is coaxially arranged with the input shaft 1; a clutch plate 9, fixed to the end of the input shaft 1 away from the engine, and can move axially relative to the shell 2 to realize the clutch function; an inner rotor 3, which is fixed on the input shaft 1 and cooperates with the input shaft 1 in a circumferential rotation-stopping manner, and a plurality of permanent magnets 4 are evenly distributed on the outer circumferential surface of the inner rotor 3; a stator winding No. 1, which is sleeved on the outside of the inner rotor 3 and is coaxially arranged with the inner rotor 3, includes a ring sleeve No. 1 and a plurality of coil 6 windings evenly distributed on the inner circumferential surface of the ring sleeve No. 1, the ring sleeve No. 1 is fixed on the shell 2, and the coil 6 winding of the stator winding No. 1 5 and the permanent magnet 4 of the inner rotor 3 form a phase. A first coupling group of mutual magnetic coupling; a second stator winding 8, which is coaxially arranged with the first stator winding 5 and is sleeved outside the first stator winding 5, including a second ring sleeve and a plurality of coil windings 6 evenly distributed on the outer circumference of the second ring sleeve, and the second ring sleeve is fixed on the shell 2; an outer rotor 10, which is fixedly assembled on the output shaft 11 and fixedly connected to the output shaft 11, includes a circular plate and an annular cylinder, and a friction portion for contacting with the clutch plate 9 is provided on the side surface of the circular plate away from the output shaft 11, and a plurality of permanent magnets 4 are evenly distributed on the inner circumference of the annular cylinder, and the permanent magnets 4 of the outer rotor 10 and the coil windings 6 of the second stator winding 8 form a second coupling group that is mutually coupled; the number of magnetic poles of the first coupling group and the second coupling group is different to achieve variable pitch; a controller, which is electrically connected to the first stator winding 5 and the second stator winding 8, respectively, and the controller is also used to connect to the battery pack 15. The multifunctional electromagnetic torque converter further includes a shielding cover 7 disposed between the No. 1 stator winding 5 and the No. 2 stator winding 8, and the shielding cover 7 is fixed on the housing 2. The shielding cover 7 is cylindrical. The controller includes a No. 1 winding controller 12 for controlling the No. 1 stator winding 5, a No. 2 winding controller 13 for controlling the No. 2 stator winding 8, and a coupling controller 14 for realizing coordinated control between the No. 1 winding controller 12 and the No. 2 winding controller 13, and also includes a master controller.

[0076] When in use, through the control of the controller, a variety of different functions can be realized under different working conditions, such as: through the transmission of the two coupling groups, due to the different pole numbers of the two coupling groups, the transmitted torque is also different, which can replace the traditional torque converter to realize the variable pitch function; the axial movement of the clutch plate 9 can realize the function of the clutch with the friction part of the outer rotor 10; the rotation of the input shaft 1 and the output shaft 11 can generate electrical energy for the corresponding stator windings respectively to realize the function of power generation; supplying power to the No. 1 stator winding 5 alone can drive the input shaft 1 to rotate and realize the function of the starter; when at least one of the two stator windings is powered, it can drive the corresponding inner rotor 3 or outer rotor 10 to rotate, and cooperate with the output of the engine to realize the functions of strong mixing and two weak mixing; through the control of the two stator windings and the clutch by the controller, the function of the synchronizer can be realized; when the vehicle brakes, the rotation of the outer rotor 10 or the inner rotor 3 can be used to generate current for the corresponding stator winding to realize the function of braking energy recovery; when the No. 2 stator winding 8 is powered alone, the output shaft 11 can be driven to rotate alone to realize the function of pure electric; it can be seen. It has many functions, simple structure, few parts, light weight, small size and low cost.

[0077] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. The patent protection scope of the present invention shall be based on the claims. All equivalent structural changes made using the contents of the description and drawings of the present invention should also be included in the protection scope of the present invention.

Claims

1. Multifunctional electromagnetic torque converter, characterized in that: include: case; An input shaft, used for transmission connection with the engine; The output shaft is used for transmission connection with the gearbox and is coaxially arranged with the input shaft; The clutch plate is fixed to the end of the input shaft away from the engine and can move axially relative to the housing to realize the clutch function; The inner rotor is fixedly assembled on the input shaft and is matched with the input shaft in a circumferential direction. A plurality of permanent magnets are evenly distributed on the outer circumference of the inner rotor. A first stator winding is sleeved outside the inner rotor and is coaxially arranged with the inner rotor, comprising a first ring sleeve and a plurality of coil windings uniformly distributed on the inner circumference of the first ring sleeve, the first ring sleeve is fixed on the housing, and the coil winding of the first stator winding and the permanent magnet of the inner rotor form a first coupling group that is magnetically coupled to each other; The second stator winding is coaxially arranged with the first stator winding, and comprises a second ring sleeve and a plurality of coil windings uniformly distributed on the outer circumference of the second ring sleeve, and the second ring sleeve is fixed on the housing; The outer rotor is fixedly mounted on the output shaft and is fixedly connected to the output shaft. The outer rotor is sleeved outside the second stator winding and includes a circular plate and an annular cylinder. The side surface of the circular plate away from the output shaft has a friction portion for contacting the clutch plate. The inner circumference of the annular cylinder is evenly distributed with a plurality of permanent magnets. The permanent magnets of the outer rotor and the coil winding of the second stator winding form a second coupling group that is coupled to each other. The first coupling group and the second coupling group have different numbers of magnetic poles to achieve variable pitch; A controller, electrically connected to the first stator winding and the second stator winding, respectively, and the controller is also used to connect to the battery pack; The first stator winding and the second stator winding are located on both sides of the circular plate respectively; The controller includes a winding controller No. 1 for controlling a stator winding No. 1, a winding controller No. 2 for controlling a stator winding No. 2, and a coupling controller for realizing coordinated control between the winding controller No. 1 and the winding controller No. 2, and also includes a master controller.

2. The multifunctional electromagnetic torque converter according to claim 1, characterized in that: The second stator winding is sleeved outside the first stator winding. The multifunctional electromagnetic torque converter also includes a shielding cover arranged between the first stator winding and the second stator winding. The shielding cover is fixed on the shell.

3. The multifunctional electromagnetic torque converter according to claim 2, characterized in that: The shielding cover is barrel-shaped.

4. A hybrid system, including a battery pack, a controller, an engine, a gearbox and an electromagnetic torque converter, characterized in that: The torque converter is a multifunctional electromagnetic torque converter as described in any one of claims 1-3.

Images