CN218771572U

CN218771572U - Electric vehicle motor and electric vehicle

Info

Publication number: CN218771572U
Application number: CN202223244689.1U
Authority: CN
Inventors: 樊东; 杨光; 杨颖�
Original assignee: Jiangyin Quanjun Power Technology Co ltd
Current assignee: Jiangyin Quanjun Power Technology Co ltd
Priority date: 2022-12-05
Filing date: 2022-12-05
Publication date: 2023-03-28
Anticipated expiration: 2032-12-05

Abstract

The utility model discloses an electric vehicle motor, include: the motor comprises a motor shell, a driving end cover, a rear end cover, a middle shaft rotationally arranged in the motor shell, a rotor and a stator which are arranged inside the motor shell, wherein the stator and the motor shell are relatively fixed, the stator comprises a stator core and a coil winding, one end of the middle shaft extends out of the driving end cover of the motor shell, a wire outlet end is arranged on the edge of the driving end cover, and a winding lead wire of the coil winding is led out of the wire outlet end. The protruding wire outlet end is arranged on the edge of the driving end cover, the volume of the machine shell is not occupied, and under the fixed installation wheelbase, more coils can be wound on the inner winding of the motor, so that the power of the motor is higher under the same installation volume.

Description

Electric vehicle motor and electric vehicle

Technical Field

The utility model belongs to the technical field of the motor, specifically relate to an electric motor car motor and electric motor car.

Background

The motor installation of the existing electric vehicle mainly comprises a middle motor, a wheel hub, a side suspension and other modes, wherein the middle motor is installed on a vehicle frame, and a chain drives a rear wheel to rotate so as to realize power transmission. The larger the power of the existing hub motor is, the thicker the coil of the stator part of the corresponding machine core and the lead-out cable of the coil are. Common electric motor car motor, the electric wire outlet end of external controller is in casing rear end housing department, and is in the same place with the stator rotor of motor, under same installation wheel base, occupation space is great, and the shell of motor will remain the inner space of outlet end, and this can influence the output of motor.

The utility model discloses consequently come.

SUMMERY OF THE UTILITY MODEL

To the technical problem who exists above-mentioned, the utility model aims at: the motor of the electric vehicle and the electric vehicle are provided, the protruded wire outlet end is arranged at the edge of the driving end cover, the volume of a machine shell is not occupied, and under the fixed installation wheelbase, more coils can be wound on a winding in the motor, so that the motor has higher power under the same installation volume.

The technical scheme of the utility model is that:

an electric vehicle motor comprising: the motor comprises a motor shell, a driving end cover, a rear end cover, a middle shaft rotationally arranged in the motor shell, a rotor and a stator which are arranged inside the motor shell, wherein the stator and the motor shell are relatively fixed, the stator comprises a stator core and a coil winding, one end of the middle shaft extends out of the driving end cover of the motor shell, a wire outlet end is arranged on the edge of the driving end cover, and a winding lead wire of the coil winding is led out of the wire outlet end.

In an optimal technical scheme, the wire outlet end is a protruding portion, the protruding portion protrudes out of the driving end cover, and a cavity is formed in the protruding portion.

In a preferred technical scheme, the protruding part is away from the middle shaft by a certain distance.

In a preferred technical scheme, the thickness of the protruding part is smaller than the distance from the middle shaft mounting part to the driving end cover.

In an optimized technical scheme, the wire outlet end comprises a plurality of wire outlets which are horizontally arranged, the lowest end of each wire outlet is higher than the driving end cover, and the outer end of each wire outlet is provided with a waterproof joint.

In a preferred technical scheme, the rear end cover is provided with an encoder cavity, an encoder is arranged in the encoder cavity, and an encoder magnetic head of the encoder extends into the middle shaft.

The invention also discloses an electric vehicle which comprises the electric vehicle motor, wherein the electric vehicle motor is used as a middle motor and is arranged in the middle of the frame of the electric vehicle.

Compared with the prior art, the utility model has the advantages that:

the motor is provided with the protruding wire outlet end at the edge of the driving end cover, the volume of the shell is not occupied, and under the fixed installation wheelbase, more coils can be wound on the winding in the motor, so that the power of the motor is higher under the same installation volume.

Drawings

The invention will be further described with reference to the following drawings and examples:

FIG. 1 is a schematic perspective view of a motor of an electric vehicle according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view of the motor of the electric vehicle according to the embodiment;

fig. 3 is a schematic structural diagram of a driving end cover of the electric vehicle motor according to the embodiment.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in combination with the following embodiments. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

The embodiment is as follows:

as shown in fig. 1 and 2, an electric vehicle motor includes: motor casing 10, drive end cover 11, rear end cover 12, rotatory arrangement is in the axis 20 (motor shaft) in motor casing 10, arrange rotor 30 and the stator 40 inside motor casing 10, and stator 40 and motor casing 10 relatively fixed, stator 40 includes stator core 41 and coil winding 42, both ends at motor casing 10 are installed to drive end cover 11 and rear end cover 12, outside axis 20 one end stretches out drive end cover 11 of motor casing 10, drive end cover 11 edge is provided with leading-out terminal 50, coil winding 42's wire winding leading-out is in leading-out terminal 50.

A plurality of magnetic steels 21 surrounding the outer wall of the central shaft 20 need to be configured in the central shaft rotating speed detection structure, and the magnetic steels 21 are uniformly distributed on the outer wall of the central shaft 20.

The center shaft 20 is mounted in the motor case 10 through a first bearing 60 and a second bearing 70.

The middle shaft 20 is also provided with a speed Hall 80, and the speed Hall 90 is connected with a motor control circuit of the middle motor. The speed hall 90 senses the magnetic field change frequency around the magnetic steel 21 in real time, and transmits the magnetic field change frequency signal to the motor controller in a voltage mode, and the motor controls the output parameter of the motor according to the change frequency.

In the concrete realization, axis 20 output is provided with the chain wheel, and machine circular telegram rotor 3 rotates, and rotor 3 drives the chain wheel and rotates, and the chain wheel passes through the chain and drives the rear wheel rotation, makes the electric motor car move ahead.

The outlet end 50 is outside the motor casing 10, and does not occupy the volume of the casing. Under the fixed installation wheel base, more coils can be wound on the rotor in the motor, so that the motor has higher power and is convenient and practical under the same installation volume.

In a preferred embodiment, as shown in fig. 3, the outlet end 50 is a protrusion, which protrudes from the driving end cap 11, and a cavity 51 is formed inside the protrusion. The cavity 51 may accommodate a wire wrap lead.

In particular, the projection is at a distance from the central axis 20.

Specifically, the thickness of the projection is less than the distance from the mounting portion 22 of the bottom bracket 20 to the driving end cap 11. The mounting portion 22 may be a threaded and nut fit. So that no interference is generated with the transmission structures such as the chain wheel and the like arranged at the output end of the middle shaft 20.

Preferably, a plurality of reinforcing ribs 112 are uniformly distributed on the inner side of the driving end cover 11 for increasing the strength of the driving end cover 11.

Specifically, the two ends of the outer side of the driving end cover 11 are provided with mounting posts 111 for mounting on the frame of the electric vehicle.

In a preferred embodiment, the outlet 50 includes a plurality of outlets 52 horizontally disposed, the lowest end of the outlet 52 is higher than the driving end cover 11, and the outer end of the outlet 52 is provided with a waterproof connector 53, and the waterproof connector 53 faces the outside of the motor.

In a preferred embodiment, the rear end cap 12 is provided with an encoder cavity, an encoder 80 is disposed in the encoder cavity, and an encoder head 81 of the encoder 80 extends into the center shaft 20.

In another embodiment, an electric vehicle comprises the electric vehicle motor, and the electric vehicle motor is used as a middle motor and is installed in the middle of a frame of the electric vehicle.

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.

Claims

1. An electric vehicle motor comprising: the motor comprises a motor shell, a driving end cover, a rear end cover, a middle shaft rotationally arranged in the motor shell, a rotor and a stator which are arranged in the motor shell, wherein the stator and the motor shell are relatively fixed, and the stator comprises a stator core and a coil winding.

2. The electric vehicle motor of claim 1, wherein the outlet end is a protrusion protruding from the driving end cap, and a cavity is formed in the protrusion.

3. An electric vehicle motor as claimed in claim 2, wherein the projection is spaced from the central axis.

4. The electric vehicle motor of claim 2, wherein the thickness of the projection is less than the distance of the bottom bracket mounting portion from the drive end cap.

5. The electric motor of an electric vehicle as claimed in claim 1, wherein the outlet comprises a plurality of outlets arranged horizontally, the lowest end of the outlet is higher than the driving end cover, and the outer end of the outlet is provided with a waterproof joint.

6. The electric vehicle motor of claim 1, wherein the rear end cap is provided with an encoder cavity, an encoder is provided in the encoder cavity, and an encoder head of the encoder extends into the central shaft.

7. An electric vehicle comprising the electric vehicle motor according to any one of claims 1 to 6, wherein the electric vehicle motor is installed as a center motor in the middle of a frame of the electric vehicle.