CROSS-REFERENCE TO RELATED APPLICATION

This Application is a U.S. National Stage entry under 35 U.S.C. § 371 based on International Application No. PCT/CN2017/071730, filed on Jan. 19, 2017, which was published under PCT Article 21(2) and which claims priority to Chinese Patent Application No. 201610080626.7, filed on Feb. 4, 2016 which are all hereby incorporated herein by reference in their entirety.

TECHNICAL FIELD

This Application pertains to the technical field of electrical motors, and particularly relates to an integrated electrical motor.

BACKGROUND

Electrical motors are the core driving unit of new energy vehicles, and if the driving electrical motor has malfunction, the entire vehicle loses the fundamental function. In the prior art, some vehicles are mounted therein with two driving electrical motors that are simply connected in series, and when one of the electrical motors has malfunction, the other electrical motor can maintain the operation. However, the technical solution of the two electrical motors that are connected in series greatly increases the axial dimension and the weight of the electrical motors. In addition, other objects, desirable features and characteristics will become apparent from the subsequent summary and detailed description, and the appended claims, taken in conjunction with the accompanying drawings and this background.

SUMMARY

In view of the above problems, this Application provides an integrated electrical motor, to solve the problem in the prior art that the series connection of two electrical motors greatly increases the axial dimension and the weight of the electrical motors.

To achieve the above objects, the technical solutions of this Application are realized as follows:

This Application provides an integrated electrical motor, wherein the integrated electrical motor comprises: a shaft, a first stator, a first rotor, a second stator, a second rotor, a first controller, a second controller, a power supply and a housing,

the housing comprises: a middle shell and two end caps, wherein the two end caps are mounted at two ends of the middle shell; and two ends of the shaft are fixed on the two end caps respectively;

the first rotor and the second rotor are fixedly mounted on the shaft, and the first stator and the second stator are fixed on inner sidewall of the middle shell and respectively correspond to locations of the first rotor and the second rotor;

the power supply is connected to the first controller and the second controller, the first controller and the first stator are electrically connected, and the second controller and the second stator are electrically connected; and

the first controller and the second controller control torques of the first rotor and the second rotor by controlling electric currents in the first stator and the second stator.

Optionally, the integrated electrical motor further comprises: two bearings,

wherein the two bearings are mounted on the two end caps, and the two ends of the shaft are fixed on the two bearings.

Optionally, the shaft is further provided thereon with a shaft shoulder, and the first rotor and the second rotor are mounted on the shaft via the two ends of the shaft, and are clipped on two sides of the shaft shoulder.

Optionally, the shaft consists of two sections: a left section and a right section, wherein a diameter of the left section is less than a diameter of the right section, and the left section and the right section form a clipping platform therebetween; and

when the first rotor and the second rotor are mounted on the shaft, the second rotor is first mounted to the right section of the shaft via a left end of the shaft, and then the first rotor is mounted to the left section of the shaft via the left end of the shaft and is clipped on the clipping platform.

Optionally, the middle shell is integrally moulded.

Optionally, the middle shell is formed by a left shell and a right shell, the first stator is fixed on inner sidewall of the left shell, and the second stator is fixed on inner sidewall of the right shell.

Optionally, the integrated electrical motor further comprises: an outputting flange, wherein the outputting flange is mounted at one end of the shaft, and the outputting flange is connected to an output shaft of the integrated electrical motor.

Optionally, the integrated electrical motor further comprises: N number of stators, N number of rotors and N number of controllers,

the N number of rotors are fixedly mounted on the shaft, the N number of stators are fixed on the shell and respectively correspond to locations of the N number of rotors, and the N number of controllers are electrically connected to the N number of stators respectively, wherein, N is a natural number greater than or equal to 1.

The advantageous effects of the embodiments of this Application are: in the integrated electrical motor that is provided by this Application, the first rotor and the second rotor are mounted on the same shaft, and the first stator and the second stator are fixed on the inner sidewalls of the corresponding locations of the housing. The integrated electrical motor has a compact structure, the axial dimension and the weight are greatly reduced, and the outputted torque can be distributed by the first controller and the second controller, which improves the safety margin and the reliability of the electrical motor.

The above description is only an overview of the technical solutions of this Application. In order to understand the technical means of this Application more clearly, and to implement them according to the contents of the description, and in order to make the above and other objects, features and advantages of this Application more fully understood, the special embodiments of this Application are provided below.

