CN203180692U - Full electric vehicle drive motor assembly - Google Patents

Abstract

The utility model discloses a drive motor assembly for a pure electric vehicle, which belongs to a permanent magnet synchronous direct current motor and aims to provide a motor for a pure electric vehicle which is small in size, light in weight, simple in structure and easy to control. It includes the rotor part and the stator part in the casing, and the right end face of the casing (1) is provided with a rotary transformer composed of a transformer stator (7) and a transformer rotor (8); on the top of the casing (1) are fixed three A terminal post (5) and three waterproof connectors (6), the terminal board part (4) and another waterproof connector (6) are fixed on the right end of the casing (1); the lead out from the stator part (2) The wires (11) and the cables (12) drawn out from the resolver are respectively connected to the corresponding waterproof joints (6) through the wiring board component (4). The utility model has stable performance and strong anti-electromagnetic interference ability, and is a driving motor for pure electric vehicles.

Description

Pure electric vehicle drive motor assembly

technical field

The utility model relates to a direct current motor, in particular to a direct current drive motor for driving an electric vehicle. the

Background technology: The permanent magnet motor not only has the brushless structure of the AC motor, but also has the advantages of reliable operation, small size, and high control efficiency, and is currently a hot spot in the research and development of electric vehicles. Permanent magnet motor drives are divided into brushless DC motors and permanent magnet synchronous motors. Brushless DC motors have the advantages of large torque, high power density, and simple position detection and control methods, but because the commutation current is difficult to achieve an ideal state, it will cause problems such as torque ripple and large vibration and noise; it is suitable for some For some electric vehicles whose speed requirements are not too high. The permanent magnet synchronous motor has the characteristics of good control precision, high torque density, stable torque, and low noise. Ideal drive for electric vehicles.

However, the current permanent magnet synchronous motor technology is still immature, and has defects such as large volume, complex structure, high cost, difficult adjustment and control, and poor anti-interference ability, which cannot meet the needs of modern automobiles. the

Summary of the invention: In view of the above defects in the prior art, the utility model aims to provide a pure electric vehicle drive motor assembly which is small in size, light in weight, simple in structure and easy to control.

In order to achieve the above object, the utility model adopts the following technical solutions: it includes a rotor part and a stator part arranged in the airtight casing, and a rotary transformer is arranged on the right end face of the casing, and the rotary transformer is fixed on the right end face It is composed of a transformer stator, a transformer rotor located in the transformer stator and fixed on the end face of the rotor shaft; three terminal posts and three waterproof joints are fixed on the top of the casing, and a terminal block part and another one are fixed on the right end face of the casing. Waterproof joints; the lead wires drawn out from the stator part and the cables drawn out from the resolver are respectively connected to the corresponding waterproof joints through the wiring board part. the

The surface of the lead wire and the cable is covered with a wave-proof sleeve, and the dust-proof cover fixed on the right end surface covers the wiring board part and the rotary transformer. the

Compared with the prior art, the utility model adopts an airtight casing, and sets a wave-proof cover on the surface of the lead wire and the cable, and seals the wiring board parts and the rotary transformer in the dust-proof cover; therefore, it can prevent dust , It also enhances the ability to resist electromagnetic interference, which provides a good guarantee for the realization of motor control. In addition, setting the converter can monitor the running status of the motor in real time. the

Description of drawings:

Fig. 1 is a structural representation of the utility model;

Fig. 2 is a right side view of Fig. 1 .

In the figure: casing 1 stator part 2 rotor part 3 terminal board part 4 terminal post 5 waterproof connector 6 transformer stator 7 transformer rotor 8 dust cover 9 pressure ring 10 lead wire 11 cable 12

The specific embodiment: the utility model is further described below in conjunction with accompanying drawing and specific embodiment:

As shown in FIGS. 1-2 , the stator part 2 is fixed in the airtight casing 1 , and the rotor part 3 is supported in the casing 1 through the stator part 2 . The right end face of the casing is provided with a rotary transformer, which is composed of a transformer stator 7 fixed on the right end face through a pressure ring 10, and a transformer rotor 8 located in the transformer stator and fixed on the rotor shaft end face. Three terminals 5 and three waterproof connectors 6 are fixed on the top of the casing, and a terminal board part 4 and another waterproof connector 6 are fixed on the right end face; Cables 12 drawn from the transformer are respectively connected to corresponding waterproof joints 6 through terminal board components 4 .

In order to prevent dust and shield electromagnetic interference, the surface of the lead wire 11 and the cable 12 is covered with a wave-proof sleeve; the dust-proof cover 9 fixed on the right end surface covers the wiring board part 4 and the rotary transformer. the

Claims (2)

1. A pure electric vehicle drive motor assembly, including a rotor part and a stator part arranged in a closed casing, characterized in that: a rotary transformer is arranged on the right end surface of the casing (1), and the rotary transformer is fixed on the The transformer stator (7) on the right end face is composed of a transformer rotor (8) located in the transformer stator and fixed on the end face of the rotor shaft; three terminal posts (5) and three terminals are fixed on the top of the casing (1). Waterproof connector (6), the wiring board part (4) and another waterproof connector (6) are fixed on the right end of the casing (1); the lead wire (11) drawn from the stator part (2) and the rotating The cables (12) drawn out from the transformer are respectively connected to the corresponding waterproof joints (6) through the wiring board component (4). 2. The pure electric vehicle drive motor assembly according to claim 1, characterized in that: the surface of the lead wire (11) and the cable (12) is covered with a wave-proof sleeve, and the dust-proof sleeve fixed on the right end face A cover (9) covers the terminal block part (4) and the resolver.

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