CN105805303A - Asynchronous motor and double-speed electromagnetic direct-drive transmission integration system - Google Patents

Abstract

The integrated power system of the asynchronous motor and the two-speed electromagnetic direct drive transmission of the present invention highly integrates the asynchronous motor and the electromagnetic direct drive transmission, and uses the same shaft as the drive shaft, which can improve the structural compactness and power transmission efficiency of the system; after integration The system can give full play to the adaptable working characteristics of the asynchronous motor, so that the system can work smoothly under different working conditions; the asynchronous motor and the electromagnetic direct drive transmission circuit are both provided with current by the principle of "electricity-magnetism-force", and the control system works The essence is to control the current inside the device, making the control more precise and efficient. The invention is applicable to the technical field of automobile power systems, especially when applied to the technical field of pure electric vehicles, which will effectively increase the cruising range of the vehicle, and lay a good technical foundation for the safe operation of the vehicle and the efficient operation of the smart car. After the present invention is popularized and applied, the energy consumption of the driving device will be reduced to a large extent, thereby bringing greater economic benefits.

Description

Asynchronous motor and two-speed electromagnetic direct drive transmission integrated power system

technical field

The invention relates to the technical field of automobile power systems, and more specifically relates to an integrated power system of an asynchronous motor and a two-speed electromagnetic direct drive transmission.

Background technique

The "2016 Government Work Report" clearly stated that vigorously developing and promoting new energy vehicles, mainly electric vehicles, and developing efficient and energy-saving power systems suitable for electric vehicles will become one of the main issues in electric vehicle research. At present, most of the power system of electric vehicles still uses the power output by the motor to decelerate and increase torque through the transmission, and then transmit the power to the wheels. This patent will invent an integrated power system of an asynchronous motor and a two-speed electromagnetic direct drive transmission, shorten the power transmission path, improve the transmission efficiency of the car, and can effectively reduce the volume of the power system, thereby realizing the optimization of the power system and even the entire vehicle of the electric vehicle , thereby improving energy efficiency and vehicle compactness.

At present, the technical research on the integration of the motor and the transmission has begun, most of which use the motor shaft as the power input shaft of the transmission at the same time, and use the traditional shift mechanism to shift gears, which reduces the design and manufacturing costs of the power system and transmission system, and The transmission efficiency has been improved, but the integration of these technologies is insufficient, and there is still a lot of room for improvement.

The integrated power system of the asynchronous motor and the two-speed electromagnetic direct-drive transmission invented by this patent is highly integrated with the electromagnetic direct-drive transmission that directly drives the movement of the engagement sleeve with the asynchronous motor and the electromagnetic linear actuator to realize gear shifting. The same shaft is used as the drive shaft, and the power is output after the gear shift is completed inside the motor, which can improve the structural compactness and power transmission efficiency of the system. At the same time, the asynchronous motor has simple structure, low manufacturing cost, high working efficiency and good working stability, which can ensure greater applicability of the integrated power system.

Contents of the invention

Invented an integrated power system of an asynchronous motor and a two-speed electromagnetic direct drive transmission. Applying the electromagnetic direct drive technology to the automatic transmission can improve the efficiency of the shifting process. The structure is more compact. Integrating the transmission into the asynchronous motor can improve the working efficiency of the power system, reduce the structural size, reduce energy consumption, and improve energy utilization; the working characteristics of the asynchronous motor can ensure that the integrated power system has strong work adaptability. The integrated power system has better control precision and stronger coordination performance, and has better research and application value.

The integrated power system of asynchronous motor and two-speed electromagnetic direct drive transmission, including: housing, first transmission shaft, asynchronous motor, first magnetic isolation ring, electromagnetic direct drive transmission, second transmission shaft, constant mesh gear pair and power output shaft ; The asynchronous motor includes an asynchronous motor stator winding, an asynchronous motor stator core, a rotor core and a cage rotor winding; sleeve, electromagnetic linear actuator mover, electromagnetic linear actuator stator, third magnetic isolation ring and second gear meshing gear pair. It is characterized by:

The asynchronous motor is a squirrel-cage asynchronous motor; the stator winding of the asynchronous motor, the stator core of the asynchronous motor, the first magnetic isolation ring, the second magnetic isolation ring, the electromagnetic linear actuator stator and the third magnetic isolation ring are fixed on the housing body; the rotor core, cage-type rotor winding, spline hub (fixed on the first transmission shaft; the first gear meshing gear pair and the second gear meshing gear pair are spaced on the first transmission shaft, and fixed on the second transmission shaft; the constant mesh gear pair is fixed on the second transmission shaft and the power output shaft at the same time; the adapter sleeve has only a degree of freedom along the axial direction of the first transmission shaft, and is connected with the splined hub, and An electromagnetic linear actuator mover is sleeved above the coupling sleeve;

The asynchronous motor and the electromagnetic direct-drive transmission that jointly drive the first transmission shaft are integrated in the housing, and a first magnetic isolation ring to prevent electromagnetic interference is provided between the asynchronous motor and the electromagnetic direct-drive transmission; the stator of the electromagnetic linear actuator Both sides are provided with a second magnetic isolation ring and a third magnetic isolation ring to prevent magnetic flux leakage.

The electromagnetic direct drive transmission (5) does not include selector shift actuators such as shift fork, shift fork shaft, shift finger and shift shaft, but is directly driven and engaged by an electromagnetic linear actuator (55). Cover (54) completes automatic shifting.

The mover (55) of the electromagnetic linear actuator is a moving coil structure.

The wireless power transmission technology is adopted between the asynchronous motor stator winding (31), the cage rotor winding (34), the electromagnetic linear actuator mover (55) and the power supply.

An asynchronous motor and two-speed electromagnetic direct-drive transmission integrated power system invented by this patent is a highly integrated asynchronous motor and electromagnetic direct-drive transmission, which has the advantages of compact structure, high work efficiency and high control accuracy. It is used in electric vehicles It can achieve the effects of high efficiency, energy saving and integrated control; the integrated system can give full play to the adaptable working characteristics of asynchronous motors, so that the system can work smoothly under different working conditions; it is used for electric motors that require fewer gears. In the automotive power system, the structure of the power system will be simplified to the greatest extent, and the transmission efficiency will be improved; the electromagnetic direct drive transmission uses the principle of electromagnetic induction, and the electromagnetic linear actuator mover directly drives the joint sleeve to perform linear motion to complete the gear shift, canceling the selection of the shift fork. The gear device makes the structure of the device more compact and the energy utilization rate is high; the asynchronous motor and the electromagnetic direct drive transmission circuit both provide current by the principle of "electricity-magnetism-force". The essence of the control system is the current inside the control device, so that the More precise and efficient.

The integrated power system of the asynchronous motor and the two-speed electromagnetic direct drive transmission of the present invention is suitable for the technical field of automobile power systems, especially when applied in the technical field of pure electric vehicles, it will effectively increase the cruising range of the vehicle, and contribute to the safe operation and safety of the vehicle. The efficient operation of smart cars has laid a good technical foundation. After the practical application of the present invention, the energy consumption of the driving device will be reduced to a large extent, thereby bringing greater economic benefits.

Description of drawings

Fig. 1 is an asynchronous motor and two-speed automatic transmission integrated power system of the present invention.

detailed description

The present invention will be further described below in conjunction with the accompanying drawings.

As shown in Figure 1, the asynchronous motor and two-speed electromagnetic direct drive transmission integrated power system proposed by the present invention includes: a housing 1, a first transmission shaft 2, an asynchronous motor 3, a first magnetic isolation ring 4, and an electromagnetic direct drive transmission 5. The second transmission shaft 6, the constant meshing gear pair 7 and the power output shaft 8; the asynchronous motor 3 includes the asynchronous motor stator winding 31, the asynchronous motor stator core 32, the rotor core 33 and the cage rotor winding 34; electromagnetic direct drive The transmission 5 includes a first-speed meshing gear pair 51, a second magnetic isolation ring 52, a spline hub 53, an adapter sleeve 54, an electromagnetic linear actuator mover 55, an electromagnetic linear actuator stator 56, a third magnetic isolation ring 57 and a second gear Mesh gear pair 58 . It is characterized by:

Asynchronous motor 3 is a squirrel-cage asynchronous motor; asynchronous motor stator winding 31, asynchronous motor stator core 32, first magnetic isolation ring 4, second magnetic isolation ring 52, electromagnetic linear actuator stator 56 and third magnetic isolation ring 57 fixed on the housing 1; the rotor core 33 of the asynchronous motor, the cage rotor winding 34, and the spline hub 53 are fixed on the first drive shaft 2; the meshing gear pair 51 of the first gear and the meshing gear pair 58 of the second gear One transmission shaft 2 is fixed on the second transmission shaft 6; the constant mesh gear pair 7 is fixed on the second transmission shaft 6 and the power output shaft 8 at the same time; the adapter sleeve 54 has only the degree of freedom along the axial direction of the first transmission shaft , and is connected with the spline hub 53, and the electromagnetic linear actuator mover 55 is sleeved above the adapter sleeve 54;

The asynchronous motor 3 and the electromagnetic direct drive transmission 5 that jointly drive the first transmission shaft 2 are integrated into the housing 1, and the first magnetic isolation ring 4 for preventing electromagnetic interference is provided between the asynchronous motor 3 and the electromagnetic direct drive transmission 5; Both sides of the actuator stator 56 are provided with a second magnetic isolation ring 52 and a third magnetic isolation ring 57 to prevent magnetic flux leakage.

A further preferred version of the present invention is:

Electromagnetic direct drive transmission 5 does not include shift fork, shift fork shaft, shift finger and shift shaft, etc., but directly drives joint sleeve 54 through electromagnetic linear actuator mover 55 to complete automatic shifting. shift gears.

The mover 55 of the electromagnetic linear actuator is a moving coil structure.

The wireless power transmission technology is used between the stator winding 31 of the asynchronous motor, the cage rotor winding 34 and the mover 55 of the electromagnetic linear actuator and the power supply.

The integrated power system of the asynchronous motor and the two-speed electromagnetic direct drive transmission of the present invention, as shown in Figure 1, the stator winding 31 of the asynchronous motor and the stator core 32 of the asynchronous motor make the rotor core 33 rotate by using the principle of "electricity-magnetism-force" The torque drives the first transmission shaft 2 to rotate; the mover 55 of the electromagnetic linear actuator interacts with the stator 56 of the electromagnetic linear actuator by using the principle of "electricity-magnetism-force" to generate linear motion, and directly drives the coupling sleeve 54 along the first transmission shaft 2. Move in the direction of the axis to complete the gear shift; when the adapter sleeve 54 is in the middle position, it is in neutral gear, and when it meshes with the first gear pair 51 and the second gear pair 58, it is respectively the first gear and the second gear; when the electromagnetic direct drive transmission 5 is in the When in gear, the power passes through the second drive shaft 6 and the constant mesh gear pair 7 successively, and is output by the power output shaft 8 . A first magnetic isolation ring 4 is provided between the asynchronous motor 3 and the electromagnetic direct drive transmission 5 to avoid electromagnetic interference; a second magnetic isolation ring 52 and a third magnetic isolation ring are provided on both sides of the stator 56 of the electromagnetic linear actuator 57. Prevent magnetic flux leakage. The circuits of asynchronous motor 3 and electromagnetic direct drive transmission 5 are both supplied by the principle of "electricity-magnetism-force". The essence of the control system is to control the current inside the device, making the control more precise and efficient; , can effectively increase the cruising range of the vehicle, improve the driving safety of the vehicle, and lay the foundation for the efficient operation of smart cars.

The above is only a preferred embodiment of the present invention, it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, some improvements and modifications can also be made, and these improvements and modifications are also possible. It should be regarded as the protection scope of the present invention.

Claims (4)

1. asynchronous machine and double speed electromagnetic direct-drive variator integrated power system, including: housing (1), the first power transmission shaft (2), asynchronous machine (3), the first magnetism-isolating loop (4), electromagnetic direct-drive variator (5), second driving shaft (6), constant mesh gear secondary (7) and power output shaft (8)；Described asynchronous machine (3) includes asynchronous machine stator winding (31), asynchronous machine stator core (32), rotor core (33) and cage-type rotor winding (34)；Described electromagnetic direct-drive variator (5) includes gear engaging tooth wheel set (51), the second magnetism-isolating loop (52), splined hub (53), clutch collar (54), electromagnetic linear executor's mover (55), electromagnetic linear executor's stator (56), the 3rd magnetism-isolating loop (57) and two gears engaging tooth wheel set (58)；It is characterized in that:

Described asynchronous machine (3) is Squirrel Cage Asynchronous Motors；Described asynchronous machine stator winding (31), asynchronous machine stator core (32), the first magnetism-isolating loop (4), the second magnetism-isolating loop (52), electromagnetic linear executor's stator (56) and the 3rd magnetism-isolating loop (57) are fixed on housing (1)；Described rotor core (33), cage-type rotor winding (34), splined hub (53) are fixed on the first power transmission shaft (2)；Described gear engaging tooth wheel set (51) and two gear engaging tooth wheel set (58) empty sets are on the first power transmission shaft (2), and are fixed on second driving shaft (6)；Described constant mesh gear secondary (7) is simultaneously fixed on second driving shaft (6) and power output shaft (8)；Described clutch collar (54) only has along the first drive shaft axis direction degree of freedom, and is connected with splined hub (53), and is set with electromagnetic linear executor's mover (55) on clutch collar (54)；

The common asynchronous machine (3) driving the first power transmission shaft (2) and electromagnetic direct-drive variator (5) are integrated in housing (1), are provided with the first magnetism-isolating loop (4) preventing electromagnetic interference between described asynchronous machine (3) and electromagnetic direct-drive variator (5)；Described electromagnetic linear executor's stator (56) both sides are provided with the second magnetism-isolating loop (52) and the 3rd magnetism-isolating loop (57) that prevent leakage field.

2. asynchronous machine according to claim 1 and double speed electromagnetic direct-drive variator integrated power system, it is characterized in that: described electromagnetic direct-drive variator (5) does not comprise selector fork, selector fork axle, the gearshift shift-selecting and changing actuating mechanism such as reversal means and shifting shaft, but directly drives clutch collar (54) to complete self shifter by electromagnetic linear executor (55).

3. the asynchronous machine according to claim 1 and 2 and double speed electromagnetic direct-drive variator integrated power system, it is characterised in that: described electromagnetic linear executor's mover (55) is moving-coil structure.

4. the asynchronous machine according to claim 1,2 and 3 and double speed electromagnetic direct-drive transmission power integrated system, it is characterised in that: adopt wireless power transmission technology between described asynchronous machine stator winding (31), cage-type rotor winding (34) and electromagnetic linear executor's mover (55) and power supply.