CN101327732A

CN101327732A - Electric power driven car multi-motor driving structure

Info

Publication number: CN101327732A
Application number: CNA2008101201356A
Authority: CN
Inventors: 应光捷
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-07-23
Filing date: 2008-07-23
Publication date: 2008-12-24

Abstract

The present invention relates to a multi-motor driving structure of motor vehicle, and comprises a motor, a wheel hub shell, a wheel hub end shield and a motor shaft. The wheel hub end shield is fixedly connected with the wheel hub shell; the center of the wheel hub end shield is provided with a motor shaft hole; the motor shaft passes through the central shaft holes of two end shields; the motor is fixed on the motor shaft; the structure is provided with a plurality of motors, which are symmetrically arranged along the motor shaft; the motors comprise a shell, a stator and a rotor; the stator is fixedly connected with the shell; the shell and the stator are fixedly connected with the motor shaft; the rotor is positioned in the shell by a bearing and is arranged in the stator; the output shaft of the rotor is connected with a one-way bearing; an idle wheel is sleeved on the motor shaft by a bearing housing, and meshes the one-way bearing; the inner side of the right end shield is provided with a ring gear; and the inner teeth of the ring gear meshes the one-way bearing. The multi-motor driving structure can increase the running mileage of the motor vehicle and increase the output torque.

Description

A kind of electric power driven car multi-motor driving structure

Technical field

The present invention relates to a kind of battery-driven car, specifically is a kind of many motor-driven structures of battery-driven car.

Background technology

Present battery-driven car all is single motor-driven, drive motor is set in the hub shell usually, drive motor is given wheel hub by wheel hub end housing with power transmission, battery-driven car is owing to be subjected to restrictions such as weight, volume, the power of drive motor can not be very big, current of electric was bigger when ubiquity started, and started the propulsive effort deficiency, so battery-driven car startup acceleration capability is not good; When acclive road traveling, also there is the situation of above-mentioned under power in addition.

Summary of the invention

The object of the invention is to provide a kind of electric power driven car multi-motor driving structure, control the operating mode of many motors by the controller of battery-driven car, when battery-driven car is starting or propulsive effort when not enough, many motors are worked simultaneously, improved the moment of torsion that drives, and at ordinary times in the cruising process mode with single motor drive, with saves energy, the present invention can increase the mileages of continuation of battery-driven car and increase output torque.

The present invention is achieved in that

A kind of electric power driven car multi-motor driving structure, comprise motor, hub shell, wheel hub end housing and motor shaft, wheel hub end housing is connected on the hub shell, the wheel hub end housing center has motor axis hole, described motor shaft runs through the central shaft hole of two end cap, described motor is then on the fixed electrical machinery axle, it is characterized in that: described motor has some, each motor is about the motor shaft distribution that is centrosymmetric, described motor comprises housing, stator and rotor, described stator and housing are solidly fixed, housing and stator be connected together with motor shaft on, rotor is positioned in the housing by bearing and is placed in stator interior, rotor bring out the axle be connected with a unilateral bearing, there is an intermediate gear to be connected on the motor shaft, is meshed with unilateral bearing at the external tooth of intermediate gear by bearing carrier ring; Described wheel hub end housing comprises left end cap and right end cap, is provided with internally toothed annulus in the inboard of described right end cap, and the internal tooth of internally toothed annulus is meshed with the external tooth of unilateral bearing.

Described motor number is two, two motors are separately positioned on the above and below of motor shaft, the stator of two motors is fixed on the motor shaft by bayonet lock, and electric machine casing is connected on the motor stator by bolt, the two ends of rotor of motor is positioned on the electric machine casing by bearing, rotor is placed in the inside of stator, and the unilateral bearing input end is socketed on the output shaft of rotor.

When the present invention starts at battery-driven car, need than high pulling torque the time, two platform motors of electrical motor put into operation simultaneously, after starting was normal, wherein an auxiliary-motor was out of service, worked under the main motor list motor operating mode, to reach the purpose of saving electric energy; Master's motor load is above the busy hour of setting when climbing when battery-driven car, and this moment, auxiliary-motor was devoted oneself to work with the increase output torque, thus the raising hill climbing ability; And when load diminishes, auxiliary-motor just quits work and is worked on saves energy by main motor list motor, the running condition that controller of the present invention detects main motor is touched the auxiliary-motor mode of operation, to improve the work efficiency of motor, increase the battery-driven car output torque, and saves energy, increase mileages of continuation to reach.

Description of drawings

Fig. 1 is a structural representation of the present invention.

The specific embodiment

As shown in Figure 1, a kind of electric power driven car multi-motor driving structure, comprise main motor 41, auxiliary-motor 42, hub shell 3, left end cap 21, right end cap 22 and motor shaft 1, wheel

hub end housing

21,22 are connected on the hub shell 3, wheel

hub end housing

21,22 centers have motor axis hole, described motor shaft 1 runs through two

end cap

21,22 central shaft hole, described motor 41,42 comprise housing 411,421, stator 412,422 and rotor 413,423, two motors 41,42 are separately positioned on the above and below of motor shaft 3, two motors 41,42 stator 412,422 are fixed on the motor shaft 3 by bayonet lock, and electric machine casing 411,421 are connected in motor stator 412 by bolt, on 422, motor 41,42 rotor 413,423 two ends are positioned at electric machine casing 411 by bearing, on 421, rotor 413,423 are placed in stator 412,422 inside, one unilateral bearing, 5 input end socket rotors 413 are arranged, on 423 the output shaft, have an intermediate gear 6 to be connected on the motor shaft 1 by bearing carrier ring, the external tooth of intermediate gear 6 is meshed with the external tooth of unilateral bearing 5; Be provided with internally toothed annulus 221 in the inboard of described right end cap 22, the internal tooth of internally toothed annulus 221 is meshed with the external tooth of unilateral bearing 5.

The present invention starts at battery-driven car need be than during high pulling torque, two platform motors of electrical motor put into operation simultaneously, two motors of major-minor drive the inner gear rotation that is connected in right end cap by unilateral bearing, thereby drive the battery-driven car starting, after startup was finished, wherein an auxiliary-motor was out of service under the control of controller, and auxiliary-motor breaks away from by unilateral bearing and internally toothed annulus, and main motor singly remains in operation under the motor operating mode, to reach the purpose of saving electric energy; When battery-driven car need be climbed, this moment, main motor load can surpass the busy hour of setting, electric machine controller is at the working current that detects main motor during greater than setting value, and controller starts auxiliary-motor devotes oneself to work increasing output torque, thereby improves hill climbing ability; And when load diminishes, auxiliary-motor just quits work automatically and is worked on saves energy by main motor list motor, the running condition that controller of the present invention detects main motor is touched the auxiliary-motor mode of operation, to improve the work efficiency of motor, increase the battery-driven car output torque, and saves energy, increase mileages of continuation to reach.

Claims

1, a kind of electric power driven car multi-motor driving structure, comprise motor, hub shell, wheel hub end housing and motor shaft, wheel hub end housing is connected on the hub shell, the wheel hub end housing center has motor axis hole, described motor shaft runs through the central shaft hole of two end cap, described motor is then on the fixed electrical machinery axle, it is characterized in that: described motor has some, each motor is about the motor shaft distribution that is centrosymmetric, described motor comprises housing, stator and rotor, described stator and housing are solidly fixed, housing and stator be connected together with motor shaft on, rotor is positioned in the housing by bearing and is placed in stator interior, rotor bring out the axle be connected with a unilateral bearing, there is an intermediate gear to be connected on the motor shaft, is meshed with unilateral bearing at the external tooth of intermediate gear by bearing carrier ring; Described wheel hub end housing comprises left end cap and right end cap, is provided with internally toothed annulus in the inboard of described right end cap, and the internal tooth of internally toothed annulus is meshed with the external tooth of unilateral bearing.

2, a kind of electric power driven car multi-motor driving structure as claimed in claim 1, it is characterized in that: described motor number is two, two motors are separately positioned on the above and below of motor shaft, the stator of two motors is fixed on the motor shaft by bayonet lock, and electric machine casing is connected on the motor stator by bolt, the two ends of rotor of motor is positioned on the electric machine casing by bearing, and rotor is placed in the inside of stator, and the unilateral bearing input end is socketed on the output shaft of rotor.