CN210680376U

CN210680376U - Double-rotor motor power device of electric automobile

Info

Publication number: CN210680376U
Application number: CN201921180123.2U
Authority: CN
Inventors: 刘文光; 毕善汕; 陈步高; 陈永红; 曹福顺; 张栋梁
Original assignee: YANCHENG BUGAO AUTOMOBILE FITTINGS MANUFACTURE CO Ltd
Current assignee: YANCHENG BUGAO AUTOMOBILE FITTINGS MANUFACTURE CO Ltd
Priority date: 2019-07-25
Filing date: 2019-07-25
Publication date: 2020-06-05
Anticipated expiration: 2029-07-25

Abstract

The utility model discloses an electric automobile dual-rotor motor power device, which comprises a motor shell, brushes, a commutator, a bearing, an excitation winding, a magnetic pole, an armature core, an armature winding, an electromagnet iron ring, a ball bearing, a guide rail, a spring, a left motor half shaft and a right motor half shaft; the left and right motor half shafts are respectively provided with a bearing, an armature core, a bearing and a commutator in sequence, and the armature core is wound with an armature winding; a magnetic pole is fixedly connected to the motor shell, and an excitation winding is wound on the magnetic pole; left side motor semi-axis right-hand member and right motor semi-axis left end have consolidated the disc structure respectively, and the electro-magnet iron ring is installed to disc structure outer lane, and the inner circle is provided with the guide rail, and the inside evenly distributed of guide rail has a plurality of ball bearing, ball bearing installs at the bearing inslot, and the spring is installed to the bearing inslot, the utility model discloses a series connection form through switching mode, makes drive power exert to the biggest, has reduced actuating system's volume and quality, has improved driving system energy utilization.

Description

Double-rotor motor power device of electric automobile

Technical Field

The invention belongs to the technical field of new energy automobiles, and particularly relates to a dual-rotor motor power device of an electric automobile.

Background

The pure electric vehicle not only has the advantages of low noise and zero emission, but also has the advantages of easiness in operation and maintenance, is a vehicle mainly researched at present, and the comprehensive performance of a power transmission system is concerned. The power requirements of the current pure electric automobile comprise a driving motor, an air conditioner and the like, an independent power system supplies the components to reduce the use space of the automobile, and a plurality of controllers are required to be designed to drive the motors respectively, so that the system is complex and the energy utilization rate is low.

The invention of Chinese patent application CN201611125129.0 has proposed a dual-rotor motor driving system for integrated electrical accessories of an electric vehicle, which integrates a main driving motor, a steering pump, an inflating pump, an air conditioner and a generator assembly, but an inner rotor and an outer rotor operate independently from each other in a motor casing, so that the driving force cannot be utilized to the maximum extent, and the energy utilization rate is not high.

Disclosure of Invention

In order to solve the problems, the invention discloses a dual-rotor motor power device of an electric vehicle, which solves the problem that the output torque of a micro electric vehicle is insufficient under working conditions of climbing, accelerating and the like.

In order to achieve the purpose, the technical scheme of the invention is as follows:

a dual-rotor motor power device of an electric automobile comprises a motor shell, electric brushes, a commutator, a bearing, an excitation winding, a magnetic pole, an armature core, an armature winding, an electromagnet iron ring, a ball bearing, a guide rail, a spring, a left motor half shaft and a right motor half shaft; the left and right motor half shafts are respectively provided with a bearing, an armature core, a bearing and a commutator in sequence, and the armature core is wound with an armature winding; a magnetic pole is fixedly connected to the motor shell, and an excitation winding is wound on the magnetic pole; disc structures are respectively fixed at the right end of the left motor half shaft and the left end of the right motor half shaft, an electromagnet iron ring is installed on the outer ring of each disc structure, a guide rail is arranged on the inner ring, 10-18 ball bearings are uniformly distributed in the guide rail, the ball bearings are installed in bearing grooves, and springs are further installed in the bearing grooves.

The invention has the advantages that:

the dual-rotor motor power system for the electric automobile adopts a series connection mode, is driven by the right motor under large torque, and is responsible for power input of other equipment by the left motor under small torque, so that the driving force is exerted to the maximum, the size and the quality of the driving system are reduced, the energy utilization rate of the power system is improved, and the problem of insufficient torque of the electric automobile under working conditions of climbing, acceleration and the like is solved to a certain extent.

Drawings

FIG. 1 is a schematic view of a dual rotor motor according to the present invention;

FIG. 2 is a schematic left side view of the electromagnetic coil structure of the present invention;

FIG. 3 is a schematic view of the spring structure of the present invention;

fig. 4 illustrates a dual rotor motor control strategy in accordance with the present invention.

List of reference numerals: 1. the motor comprises a motor shell, 2 electric brushes, 3 commutators, 4 bearings, 5 exciting windings, 6 magnetic poles, 7 electric driving iron cores, 8 electric driving windings, 9 electromagnet iron rings, 10 ball bearings, 11 guide rails, 12 springs and 13 left and right motor half shafts.

Detailed Description

The present invention will be further illustrated with reference to the accompanying drawings and specific embodiments, which are to be understood as merely illustrative of the invention and not as limiting the scope of the invention.

As shown in the figure, the double-rotor motor power device of the electric automobile comprises a motor shell 1, brushes 2, a commutator 3, a bearing 4, an excitation winding 5, a magnetic pole 6, an electrically-driven iron core 7, an electrically-driven winding 8, an electromagnet iron ring 9, a ball bearing 10, a guide rail 11, a spring 12 and a left motor half shaft and a right motor half shaft 13.

Wherein, the left and right motor half shafts 13 are respectively provided with a bearing 4, an armature core 7, a bearing 4 and a commutator 3 in sequence, and the armature core 7 is wound with an armature winding. The motor shell 1 is fixedly connected with a magnetic pole 6, and the magnetic pole 6 is wound with an excitation winding. The right end of the left motor half shaft and the left end of the right motor half shaft are respectively and fixedly provided with a disc structure, an electromagnet iron ring 9 is installed on the outer ring of the disc structure, a guide rail 11 is arranged on the inner ring, 12 ball bearings 10 are uniformly distributed in the guide rail 11 and are installed in a bearing groove, and a spring 12 is further installed in the bearing groove.

In addition, during actual installation, the left and right motor half shafts 13 are coaxially installed, the centers of the circles are located, the number of the electrically-driven iron cores 7 is two, the two electrically-driven iron cores are oppositely installed on the circumferences of the left and right motor half shafts 13, and the excitation windings 8 are distributed on the outer sides of the left and right motor half shafts 13.

In the embodiment, the operation mode of the dual-rotor motor power system is adjusted in real time according to the acquired traffic environment data and driving behavior data by the electronic control unit, wherein the traffic environment data comprises the density of vehicles near the vehicle, the distance between the front and rear vehicles, the road slope and the road curvature, the driving behavior data comprises the rotation angle of a steering wheel, the rotation frequency, the opening degree of an accelerator and a brake pedal in the driving process, and the power distributed to a vehicle driving system and other equipment by the dual-rotor motor system is finally determined by combining the above.

In specific application, in order to efficiently utilize the driving force of the motor, the ball bearing 10 plays a role in controlling the electromagnet to be closed and the electromagnet to be opened, in addition, the tail part of the ball bearing 10 is connected with the electromagnet 9 through the spring 12, the generated compression energy storage realizes the explosion of impact force or the electromagnet to be opened, and the working mode is switched.

This birotor motor's mode of operation, its characterized in that:

s1: the traffic environment data acquisition module acquires the number of vehicles around the vehicle, the distance between the vehicles and the workshop, the road gradient and the road curvature data and sends the data to the electronic control unit.

S2: the driving behavior data acquisition module acquires steering angle and rotation frequency of a steering wheel, and stroke data of an accelerator and a brake pedal in the driving process and sends the data to the electronic control unit.

S3: the electronic control unit combines the current traffic situation and analyzes the driving behavior of the driver to judge the possible operation taken by the driver at the next moment.

S3.1: when the system judges that a driver needs large torque output, the electronic control unit controls the electromagnet to be attracted, the half shafts of the left motor and the right motor are fixedly connected into an adult, the left motor and the right motor adjust the direction of input current as required, the torque is jointly output, and the driving requirement of a vehicle is met.

S3.2: when the system judges that the driver does not need large torque output, the electronic control unit controls the electromagnet to be disconnected, the left motor continues to be responsible for power requirements of other systems such as an air conditioner compressor and the like, and the right motor is responsible for driving the vehicle to run.

The technical means disclosed in the invention scheme are not limited to the technical means disclosed in the above embodiments, but also include the technical scheme formed by any combination of the above technical features.

Claims

1. The utility model provides an electric automobile birotor motor power device which characterized in that: the magnetic brush type permanent magnet synchronous motor comprises a motor shell (1), electric brushes (2), a commutator (3), a bearing (4), an excitation winding (5), a magnetic pole (6), an armature core (7), an armature winding (8), an electromagnet iron ring (9), a ball bearing (10), a guide rail (11), a spring (12) and left and right motor half shafts (13), wherein the bearing (4), the armature core (7), the bearing (4) and the commutator (3) are respectively installed on the left and right motor half shafts (13) in sequence, and the armature winding is wound on the armature core (7); a magnetic pole (6) is fixedly connected to the motor shell (1), and an excitation winding is wound on the magnetic pole (6); the right end of the left motor half shaft and the left end of the right motor half shaft are respectively fixedly connected with a disc structure, an electromagnet iron ring (9) is installed on the outer ring of the disc structure, a guide rail (11) is arranged on the inner ring, 10-18 ball bearings (10) are uniformly distributed in the guide rail (11), the ball bearings are installed in a bearing groove, and a spring (12) is further installed in the bearing groove.