CN210898683U

CN210898683U - Five-pair-pole servo motor

Info

Publication number: CN210898683U
Application number: CN201922491124.5U
Authority: CN
Inventors: 李自军; 宋金梅; 江军军; 严自新
Original assignee: Changzhou Yunkong Electronic Co ltd
Current assignee: Changzhou Yunkong Electronic Co ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-06-30
Anticipated expiration: 2029-12-31

Abstract

The utility model discloses a five antipodal servo motor, including casing and pivot, stator core is installed to the casing inboard, installs the rotor suit in the pivot and normal running fit, has stator winding on the stator core, the front end fixed connection front end housing of casing, the rear end fixed connection rear end housing of casing, hall sensor is installed to the tail end of casing, stator winding is two groups five antipodal winding parallelly connected and forms. The motor has the characteristics of reduced length and size, high volume power density and good manufacturability.

Description

Five-pair-pole servo motor

Technical Field

The utility model relates to a motor especially relates to a five antipodal servo motor.

Background

At present, a four-pair-pole motor in the traditional scheme is 1 unit motor, windings are relatively concentrated, the problem of reduction of the wire diameter of the windings cannot be solved by increasing the number of parallel circuits, the process of the end part of the winding is increased, the axial size of the motor is large, and the requirement of special working conditions on the size of the motor cannot be met; the expansion of the application in some occasions with size requirements is difficult to meet.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims at providing a can effectively reduce motor length size, have high volume power density, five antipodal servo motor that manufacturability is good.

The purpose of the utility model can be achieved by adopting the following technical scheme:

the utility model provides a five antipodal servo motor, includes casing and pivot, stator core is installed to the casing inboard, installs rotor and suit in the casing normal running fit in the pivot, has stator winding on the stator core, the front end fixed connection front end housing of casing, the rear end fixed connection rear end housing of casing, hall sensor is installed to the tail end of casing, stator winding is two groups five antipodal windings and forms in parallel.

Preferably, the shaft is rotatably engaged with the housing by means of front and rear bearing supports in the housing.

Preferably, the five-pair pole winding coefficient is 0.933.

The utility model has the advantages of:

the utility model solves the problem that the system requires the size of the motor, and provides a novel five-pair-pole motor; the motor is 2 units, can realize 2-path parallel connection, integrates a fan-shaped Hall plate, uses rotor auxiliary magnetic steel as a Hall magnetic pole source, has a main magnetic pole and an auxiliary magnetic pole, reduces the axial size of the motor by 30 percent compared with the original four-pair-pole motor under the condition of the same power output, solves the problem of large tooth space torque caused by process reasons due to the fact that 2 units are symmetrical and has small unilateral magnetic pull force, and the motor runs at a lower speed and a higher stability than four pairs of poles.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic diagram of the distribution of the stator winding of the present invention.

Detailed Description

In order to make the technical solutions of the present invention clearer and clearer for those skilled in the art, the present invention will be described in further detail with reference to the following embodiments and the accompanying drawings, but the embodiments of the present invention are not limited thereto.

As shown in fig. 1, 2, the five-antipode servo motor that this embodiment provided, including casing 1 and pivot 2, stator core 3 is installed to casing 1 inboard, installs rotor 9 and suit in casing 1 on the pivot 2 and rotates the cooperation, has stator winding 4 on the stator core 3, and casing 1's front end fixed connection front end housing 5, casing 1's rear end fixed connection rear end housing 6, and hall sensor 7, its characterized in that are installed to casing 1's tail end: the stator winding 4 is formed by connecting two groups of five pairs of pole windings in parallel.

The rotating shaft 2 is supported by front and rear bearings 8 in the shell 1 to be in running fit with the shell 1.

And the winding coefficient of the five pairs of poles is 0.933.

The utility model discloses a five antipode fundamental wave winding coefficient 0.933, and four antipode fundamental wave winding coefficient 0.945, the winding utilization is basically equivalent, five antipode designs to 2 unit motors, four antipode designs to 1 unit motor, five antipode can be designed to 2 ways and connect in parallel, the winding wire gauge reduces, the groove is filled the utilization ratio and is improved, because of the wire gauge attenuation, the coil reduces at the shaping height of groove tip, (the implementation of this scheme is low pressure 48VDC motor) tip height reduces 6mm than four antipode motors on average; in order to reduce the length of the machine body, a Hall plate built-in scheme is adopted, the Hall plate is not designed like a four-antipode 120-degree full circle distribution design, the outgoing line and the Hall plate respectively occupy 180-degree space arrangement design, the effective space of a winding is fully utilized, and the total machine body length of the motor is reduced by 4mm compared with that of a four-antipode motor; the length of the whole machine body is reduced by 10mm, the installation requirement of customer equipment is met, the speed replacing performance is better, and a four-pair-pole motor is completely replaced.

The above description is only a further embodiment of the present invention, but the scope of protection of the present invention is not limited thereto, and any person skilled in the art can replace or change the technical solution and the concept of the present invention within the scope of the present invention.

Claims

1. The utility model provides a five antipode servo motor, includes casing (1) and pivot (2), stator core (3) are installed to casing (1) inboard, install rotor (9) and suit normal running fit in casing (1) on pivot (2), stator winding (4) have on stator core (3), front end fixed connection front end housing (5) of casing (1), rear end fixed connection rear end housing (6) of casing (1), hall sensor (7) are installed to the tail end of casing (1), its characterized in that: the stator winding (4) is formed by connecting two groups of five-pair-pole windings in parallel.

2. The five-pair-pole servomotor according to claim 1, wherein: the rotating shaft (2) is supported by a front bearing (8) and a rear bearing (8) in the shell (1) to be matched with the shell (1) in a rotating mode.

3. The five-pair-pole servomotor according to claim 1, wherein: and the winding coefficient of the five pairs of poles is 0.933.