CN218161936U

CN218161936U - Motor outlet structure

Info

Publication number: CN218161936U
Application number: CN202222025264.5U
Authority: CN
Inventors: 王康; 吴振献; 孙洪发; 沈明; 赵强; 杨昇
Original assignee: Changzhou Yucheng Futong Motor Co Ltd
Current assignee: Changzhou Yucheng Futong Motor Co Ltd
Priority date: 2022-08-03
Filing date: 2022-08-03
Publication date: 2022-12-27
Anticipated expiration: 2032-08-03

Abstract

The utility model discloses a motor outlet structure, which is used for a permanent magnet brushless direct current hub motor of an electric bicycle and comprises a motor shaft (1) and a stator component (2); stator module (2) include stator core (2-1) and stator winding (2-2), stator core (2-1) is installed on motor shaft (1), has seted up the cable perforation on motor shaft (1), and the cable perforation comprises inlet wire hole (1-1) along motor shaft (1) axial and radial wire hole (1-2) along motor shaft (1), and wire outlet hole mouth (1 a) of perforated wire hole (1-2) of cable is located the inboard of stator core (2-1). An outlet hole (1 a) of an outlet hole (1-2) of the cable perforation is tightly attached to the inner side edge (2 a) of the stator core (2-1). The utility model discloses simple structure need not to adjust motor wire winding parameter and circuit control scheme and can realize the motor reversal, and makes the increase of motor inner space, has avoided the interference between the part.

Description

Motor outlet structure

Technical Field

The utility model relates to a motor especially relates to an electric bicycle permanent magnetism brushless direct current in-wheel motor outlet structure, belongs to the motor technology field.

Background

The existing motor outlet structure, in particular to an outlet structure of a permanent magnet brushless direct current hub motor of an electric bicycle, comprises a motor shaft and a stator component; stator module includes stator core and stator winding, and stator core fixed mounting has seted up the cable perforation on the motor shaft, the cable perforation comprises along the axial entrance hole of motor shaft and along the radial wire hole of motor shaft, and the wire hole mouth that is qualified for the next round of competitions of perforated wire hole of cable is located stator core's the outside. However, the existing motor outlet structure has the following two defects in the working process: on one hand, in order to realize motor reversal in the existing motor, the winding parameters of the motor and a circuit control scheme need to be adjusted; on the other hand, the existing motor can not realize the increase of the outside space of the motor stator core, and the cable is easy to interfere with the drum brake block, the brake block and the like.

Disclosure of Invention

The to-be-solved technical problem of the utility model is to overcome prior art not enough, provide one kind and need not to adjust motor wire winding parameter and circuit control scheme and can realize the motor reversal, can realize the motor outlet structure that the motor inner space increases moreover.

In order to solve the technical problem, the utility model adopts the motor outlet structure which is used for the permanent magnet brushless direct current hub motor of the electric bicycle and comprises a motor shaft and a stator component; the stator assembly comprises a stator core and a stator winding, the stator core is installed on a motor shaft, a cable perforation is formed in the motor shaft and comprises a wire inlet hole in the axial direction of the motor shaft and a wire outlet hole in the radial direction of the motor shaft, and a wire outlet hole of the cable perforation is located on the inner side of the stator core.

As a preferred embodiment of the present invention, the outlet hole of the cable hole is tightly attached to the inner side of the stator core.

As an preferable embodiment of the present invention, a rectangular groove is formed on the inner side surface of the stator core, and a screw for fixing a cable is installed on the bottom surface of the rectangular groove.

After the structure is adopted, the utility model discloses following beneficial effect has:

the utility model discloses motor outlet structure sets up the inboard at stator core with the outlet orifice mouth of the fenestrate wire hole of cable, and the inboard side of stator core is hugged closely to the preferred, such structure for need not accommodate motor wire winding parameter and circuit control scheme, can realize the motor reversal.

The utility model discloses motor outlet structure sets up the inboard at stator core with the outlet orifice of the fenestrate wire hole of cable, and stator core's outside space increase like this, on the one hand the cable can not stop the piece with the drum in the stator core outside, stop the piece etc. and take place to interfere, on the other hand, also be difficult for taking place to interfere between the part in the stator core outside.

The utility model discloses simple structure, easy to carry out has further optimized the inner structure of motor.

Drawings

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings.

Fig. 1 is a schematic view of the motor outlet structure of the present invention.

Fig. 2 isbase:Sub>A schematic sectional view taken along linebase:Sub>A-base:Sub>A in fig. 1.

Fig. 3 is a schematic view of a usage status of the motor outlet structure of the present invention.

Detailed Description

Referring to fig. 1 to fig. 3, a motor outlet structure for a permanent magnet brushless dc hub motor of an electric bicycle includes a motor shaft 1, a stator assembly 2, a rotor assembly, an end cover and other components, not shown; the stator assembly 2 comprises a stator core 2-1 and a stator winding 2-2, the stator core 2-1 can be fixedly installed on the motor shaft 1 through interference fit, the stator core 2-1 can also be installed on the motor shaft 1 through key fit, a cable perforation is formed in the motor shaft 1, the cable perforation is composed of a wire inlet hole 1-1 along the axial direction of the motor shaft 1 and a wire outlet hole 1-2 along the radial direction of the motor shaft 1, and a wire outlet hole 1a of the wire outlet hole 1-2 of the cable perforation is located on the inner side of the stator core 2-1.

As a preferred embodiment of the present invention, as shown in fig. 2 and 3, the outlet orifice 1a of the outlet hole 1-2 of the cable perforation is closely attached to the inner side 2a of the stator core 2-1. Therefore, the space utilization rate of the inner side of the stator core 2-1 of the motor is higher.

As a preferred embodiment of the present invention, as shown in fig. 2 and 3, a rectangular groove 2b is formed on the inner side surface of the stator core 2-1, and a screw 3 for fixing a cable 4 is mounted on the bottom surface of the rectangular groove 2 b. Referring to fig. 3, both ends of the cable 4 are connected to the stator windings 2-2 and the circuit board 5, respectively. In the utility model discloses in stator core 2-1's the outside still installs parts such as the piece is stopped to the drum, stops the piece, and the figure is not shown in the figure.

Through probation, the utility model discloses simple structure need not to adjust motor wire winding parameter and circuit control scheme and can realize the motor reversal, and makes the increase of motor inner space, has avoided the interference between the part, has gained good practical function.

Claims

1. A motor outlet structure is used for a permanent magnet brushless direct current hub motor of an electric bicycle and comprises a motor shaft (1) and a stator assembly (2); stator module (2) include stator core (2-1) and stator winding (2-2), stator core (2-1) is installed on motor shaft (1) seted up the cable on motor shaft (1) and perforated, the cable is perforated and is become its characterized in that by inlet wire hole (1-1) along motor shaft (1) axial and along radial wire outlet (1-2) of motor shaft (1): and the outlet orifice (1 a) of the outlet hole (1-2) of the cable perforation is positioned at the inner side of the stator core (2-1).

2. The motor outlet structure of claim 1, wherein: and an outlet hole opening (1 a) of the outlet hole (1-2) of the cable perforation is tightly attached to the inner side edge (2 a) of the stator core (2-1).

3. The motor outlet structure according to claim 1 or 2, characterized in that: a rectangular groove (2 b) is formed in the inner side face of the stator core (2-1), and a screw (3) used for fixing a cable is mounted on the bottom face of the rectangular groove (2 b).