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Stator assembly and motor

A stator and component technology, applied in the direction of electric components, electrical components, electromechanical devices, etc., can solve the problems of affecting the performance of the motor and the lack of coaxiality of the central cavity, so as to ensure the uniformity of the air gap, improve the coaxial accuracy, and ensure the same The effect of axis accuracy

Pending Publication Date: 2021-04-27
FOSHAN WEILING WASHER MOTOR MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of this application is to provide a stator assembly to solve the technical problem in the prior art that the coaxiality between the front end cover and the rear end cover and the central cavity of the stator core is not high and affects the performance of the motor

Method used

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  • Stator assembly and motor
  • Stator assembly and motor
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] see figure 1 , the stator assembly 10 provided by the present application will now be described. The stator assembly 10 is applied in a motor.

[0050] The stator assembly 10 includes a stator core 11 and a plurality of supporting structures 12 . see figure 2 and image 3 , the stator core 11 has a central cavity 110 and a plurality of mounting grooves 111, the central cavity 110 and a plurality of mounting grooves 111 extend axially, each mounting groove 111 is arranged around the central cavity 110, and each mounting groove 111 is axially connected to the central cavity 110 parallel to each other. Each support structure 12 is fixedly installed in each installation groove 111 one by one, and the two ends of the support structure 12 along the axial direction respectively have a first support end 121 and a second support end 122, and the first support end 121 and the second support end The two supporting ends 122 are used for connecting the end caps.

[0051] Spec...

Embodiment 2

[0078] The technical features of the stator assembly 10 in this embodiment are basically the same as those of the stator assembly 10 in Embodiment 1, the difference is that in this embodiment, please refer to Figure 9 , the support structure 12a is divided into two parts, the support structure 12a includes the second support rod 126a and the third support rod 127a, the second support rod 126a and the third support rod 127a are respectively inserted in the installation groove 111, the first support end The portion 121a is disposed on the outer end of the second support rod 126a, and the second support end portion 122a is disposed on the outer end of the third support rod 127a.

[0079] Specifically, the second support rod 126a and the third support rod 127a are both cylindrical, and the installation groove 111 is also cylindrical, and the second support rod 126a and the third support rod 127a are inserted in the installation groove 111 respectively The intermediate positions o...

Embodiment 3

[0082] The technical features of the stator assembly 10 in this embodiment are basically the same as those of the stator assembly 10 in Embodiment 1, the difference is that in this embodiment, please refer to Figure 10 to Figure 12 , the supporting structure 12b includes a first connecting rod 123b, a through hole 1230b is opened in the center of the first supporting rod 123b, a third mounting hole is provided in the periphery of the front end cover 30, a fourth mounting hole is provided in a peripheral edge of the rear end cover 40, tightly The fastener 60 passes through the third installation hole, the through hole 1230 b and the fourth installation hole in sequence and is locked by the second nut 70 .

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Abstract

The invention provides a motor. The motor comprises a front end cover, a rear end cover and a stator assembly. The stator assembly comprises a stator core which is provided with a central cavity extending in the axial direction and a plurality of installation grooves, and the installation grooves are parallel to the central cavity; a plurality of supporting structures are fixedly installed in the installation grooves in a one-to-one correspondence mode, the two ends, in the axial direction, of each supporting structure are provided with a first supporting end and a second supporting end respectively, and the first supporting ends and the second supporting ends are used for being connected with end covers. The front end cover is provided with a third supporting end portion, the rear end cover is provided with a fourth supporting end portion, the third supporting end portion abuts against the first supporting end portion, and the fourth supporting end portion abuts against the second supporting end portion. According to the motor provided by the invention, the front end cover and the rear end cover are supported by the plurality of supporting structures, so that the coaxial precision of the front end cover and the rear end cover with the central cavity is ensured, and the motor performance is improved.

Description

technical field [0001] The present application belongs to the field of motor technology, and more specifically relates to a stator assembly and a motor. Background technique [0002] At present, most of the low-power motors adopt the assembly method that the front end cover and the rear end cover are in direct contact with the stator core. Coaxial positioning, and realize mutual support and fastening connection through the fitting surfaces of the two. However, due to the high-speed lamination process of the stator core, its thickness tolerance is large and it is difficult to further improve, resulting in poor perpendicularity between the end face of the stator core and the axis of the central cavity. In direct contact assembly, the difference in the thickness of the stator core increases the coaxiality between the end cover bearing chamber and the central cavity, and when the front and rear end covers are fastened to the stator core, the unbalanced fastening force will also...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/12H02K1/16
CPCH02K1/12H02K1/16H02K2201/03
Inventor 赵运生
Owner FOSHAN WEILING WASHER MOTOR MFG
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