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Mounting framework, integrated stator and encapsulation method of integrated stator

An integral, skeleton technology, applied in the manufacture of stator/rotor body, electromechanical device, magnetic circuit shape/pattern/structure, etc., can solve the problems of cumbersome and complicated adjustment and positioning methods, avoid multiple repeated adjustments, and ensure measurement accuracy. , to ensure the effect of coaxiality

Pending Publication Date: 2020-07-24
中科九微科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the cumbersome and complicated defect of the adjustment and positioning method between the magnetic bearing stator and the motor stator in the prior art, so as to provide a mounting frame that can facilitate the axial and circumferential positioning of the stator

Method used

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  • Mounting framework, integrated stator and encapsulation method of integrated stator
  • Mounting framework, integrated stator and encapsulation method of integrated stator
  • Mounting framework, integrated stator and encapsulation method of integrated stator

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Experimental program
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Effect test

Embodiment 1

[0047] The installation skeleton provided in this embodiment includes a skeleton body 2 and a set of positioning holes.

[0048] Such as figure 1 As shown, the frame body 2 is a tubular hollow tube, and the frame body 2 is provided with a positioning hole group and a sensor mounting hole group 3 in the axial direction; the sensor mounting hole group 3 has two groups, which are respectively close to the The end of the frame body 2 is arranged, and each group of sensor mounting hole groups 3 has four mounting holes, and the four mounting holes are spaced and evenly distributed along the circumference of the frame body 2, and each of the mounting holes is It is a circular hole and communicates with the inside of the frame body 2 . The positioning hole group is arranged between two groups of the sensor installation hole groups 3, and the positioning hole group includes: a first positioning hole group 4 and a second positioning hole set at intervals along the axial direction of th...

Embodiment 2

[0052] The integral stator provided in this embodiment includes: an installation skeleton 1 , an upper radial magnetic bearing stator 8 , a lower radial magnetic bearing stator 9 , a motor stator 10 and two sensor groups 11 .

[0053] Such as Figure 4 As shown, each group of the sensor group 11 includes a sensor and a mounting bracket, the mounting bracket is an annular structure, and four threaded holes are evenly distributed on the circumference of the mounting bracket; each group of the sensor group 11 has four Four sensors are respectively fixed on the mounting bracket through the threaded holes; first, the mounting bracket is sleeved on the skeleton body 2, so that the sensors and the sensor mounting holes are one by one. Correspondingly, adjust the distance that each sensor extends out of the sensor installation hole in turn. The upper radial magnetic bearing stator 8 is mounted on the frame body 2 through the first positioning hole set 4 , and the lower radial magneti...

Embodiment 3

[0055] The potting method of integral stator in the present embodiment, comprises the following steps:

[0056] Step 1: If Figure 5 As shown, the upper radial magnetic bearing stator 8, the motor stator 10, the lower radial magnetic bearing stator 9, and two groups of sensor groups 11 are correspondingly embedded in the installation frame 1 to form a whole; the stator shell 14 is sleeved On the outside of the whole body, the mandrel 12 is inserted into the axis of the installation frame 1 to jointly form a component to be potted.

[0057] Such as Figure 6 As shown, the inner diameters of the upper radial magnetic bearing stator 8, the motor stator 10 and the lower radial magnetic bearing stator 9 are all smaller than the inner diameter of the installation skeleton 1, so that each stator tooth protrudes from each of the positioning There is a gap 13 between the mounting frame 1 and the mandrel 12; the mandrel 12 is in contact with the stator teeth of each of the stators, an...

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Abstract

The invention provides a mounting framework, an integrated stator and an encapsulation method of the integrated stator, and belongs to the technical field of stator encapsulation. The mounting framework comprises a framework body and multiple positioning hole sets are arranged at intervals in the axial direction of the framework body, wherein the framework body is in a circular tube shape, and each positioning hole set is internally provided with multiple positioning holes which are formed at intervals in the circumferential direction of the framework body and used for corresponding to statorteeth. According to the invention, the axial intervals among the positioning hole sets determine the axial intervals of the multiple stators, so that repeated adjustment by additionally arranging gaskets is avoided; the positioning holes in each positioning hole set are formed at intervals in the circumferential direction of the framework body, so that the relative circumferential positions of thestators are determined, and the stators are prevented from being repeatedly adjusted and aligned in the circumferential direction; and due to the structure of the mounting framework, the axial and circumferential positioning of the stator is convenient and rapid, so that the mounting workload is reduced.

Description

technical field [0001] The invention relates to the technical field of stator potting, in particular to an installation frame, an integral stator and a potting method for the integral stator. Background technique [0002] The magnetic levitation molecular pump uses the magnetic levitation motor to realize the speed control of the molecular pump rotor assembly. The stator of the magnetic levitation motor includes the upper radial magnetic bearing stator, the motor stator and the lower radial magnetic bearing stator. Each stator and internal sensors need to use epoxy glue Potting as a monolithic structure. [0003] Before the stator potting, it is necessary to adjust and position the axial and circumferential positions of each stator; at present, the specific adjustment method is: place the upper radial magnetic bearing stator, the motor stator, the lower radial magnetic bearing stator and the sensor in the package The axial spacing is adjusted by adding backing rings between...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/18H02K1/14H02K7/09H02K11/20H02K16/00H02K15/02H02K15/12
CPCH02K1/146H02K1/18H02K7/09H02K11/20H02K15/022H02K15/12H02K16/00H02K2201/15
Inventor 陈林刘强张亮任世瑜
Owner 中科九微科技有限公司
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