CN203967867U - The anti-axial endplay structure of a kind of motor stator winding - Google Patents
The anti-axial endplay structure of a kind of motor stator winding Download PDFInfo
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- CN203967867U CN203967867U CN201420371571.1U CN201420371571U CN203967867U CN 203967867 U CN203967867 U CN 203967867U CN 201420371571 U CN201420371571 U CN 201420371571U CN 203967867 U CN203967867 U CN 203967867U
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- motor stator
- winding
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Abstract
The utility model discloses the anti-axial endplay structure of a kind of motor stator winding, comprise electric machine casing, at least on the medial surface of one end, near winding overhang place, cannelure is set at described electric machine casing, the elastic annular block assembly of restriction stator winding axial motion is set in described cannelure.The utility model can limit moving axially of the non-impregnated winding of stator, and the insulation harm of avoiding its play in stator core slot to cause improves electrical machinery life, can be applied to the multiple electronics winding non-once insulating varnish cast stationary applica-tions such as submersible electric machine with oil.
Description
Technical field
The utility model relates to a kind of motor, particularly the anti-axial endplay structure of a kind of motor stator winding.
Background technology
At present, the impregnating varnish impregnation process of same dielectric grade for submersible electric machine with oil winding in known technology, after insulating varnish impregnation process, stator winding can keep good integrated with stator core, the insulation harm of avoiding its play in stator core slot to cause.But along with the rising of the product class of insulation, the insulating impregnating varnish not matching with it can be suitable for or abandon impregnating varnish impregnation process because of other favorable factors, therefore very easily there is stator winding and produce axial endplay along iron core slot direction, thereby make coil fix bad and produce the very large vibration of amplitude in groove internal cause, make coil main insulation impaired.
Summary of the invention
The utility model provides a kind of motor stator winding anti-axial endplay structure for solving the technical problem existing in known technology.
The technical scheme that the utility model is taked for the technical problem existing in solution known technology is: the anti-axial endplay structure of a kind of motor stator winding, comprise electric machine casing, at least on the medial surface of one end, near winding overhang place, cannelure is set at described electric machine casing, the elastic annular block assembly of restriction stator winding axial motion is set in described cannelure.
The utility model can also adopt following technical scheme:
Described elastic annular block assembly comprises the elastic washer and the insulation back-up ring that stack, and wherein said insulation back-up ring contacts with stator winding end face, and the difference of the internal-and external diameter of described elastic washer is greater than the degree of depth of described cannelure.
Described insulation back-up ring is insulative thermosetting resin back-up ring.
Described insulative thermosetting resin back-up ring is one of epoxy plate insulation back-up ring, glass mat insulation back-up ring or polyether-ether-ketone plate insulation back-up ring.
Described elastic washer is wavy spring.
Described wavy spring is breach type wavy spring or the buckle-type wavy spring of steel.
Advantage and the good effect that the utlity model has are: by the elastic annular block assembly of restriction stator winding axial motion is set, can limit moving axially of the non-impregnated winding of stator, the insulation harm of avoiding its play in stator core slot to cause, improves electrical machinery life.The utility model is simple in structure, easily manufactured, is specially adapted to the submersible electric machine with oil that casing external diameter is less.
Brief description of the drawings
Fig. 1 is the structural representation of embodiment 1 of the present utility model.
In figure: 1, electric machine casing; 2, cannelure; 3, elastic washer; 4, insulation back-up ring; 5, the non-impregnated winding of stator; 6, stator core.
Embodiment
For further understanding summary of the invention of the present utility model, Characteristic, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
Refer to Fig. 1, the anti-axial endplay structure of a kind of motor stator winding, comprise electric machine casing 1, at least on the medial surface of one end, near winding overhang place, cannelure 2 is set at described electric machine casing 1, at the interior elastic annular block assembly that the axial motion of restriction stator winding is set of described cannelure 2.This elastic annular block assembly had both limited stator winding axial motion, played again the effect such as liner and buffering, limited moving axially of stator winding.
Wherein above-mentioned elastic annular block assembly can adopt various ways to realize, and refers to Fig. 1, and wherein said elastic annular block assembly can comprise the elastic washer 3 and the insulation back-up ring 4 that stack, and described insulation back-up ring 4 contacts with stator winding end face; The difference of the internal-and external diameter of described elastic washer 3 is greater than the degree of depth of described cannelure.Wherein said elastic washer 3 can be wavy spring, described insulation back-up ring 4 can be insulative thermosetting resin back-up ring, and described insulation back-up ring 4 can be selected the insulative thermosetting resin back-up ring such as epoxy plate insulation back-up ring or glass mat insulation back-up ring or polyether-ether-ketone plate insulation back-up ring; One of the optional epoxy plate insulation of described insulative thermosetting resin back-up ring back-up ring, glass mat insulation back-up ring or polyether-ether-ketone plate insulation back-up ring.
Here elastic washer 3, plays the effect such as liner and buffering, can suppress the movement of stator winding.
Above-mentioned wavy spring can be breach type wavy spring or the buckle-type wavy spring of steel.
Installation method of the present utility model and operation principle:
Elastic washer 3 and insulation back-up ring 4 are arranged in the cannelure 2 of electric machine casing 1, this cannelure 2 can be escape, insulation back-up ring 4 contacts non-impregnated winding 5 end faces of stator, the aggregate thickness of elastic washer 3 and insulation back-up ring 4 is slightly less than the width of cannelure 2, elastic washer 3 cushions the axial endplay power by the non-impregnated winding 5 of stator that back-up ring 4 transmits and come that insulate, the internal-and external diameter of elastic washer 3 should be selected suitable size, to ensure that its part is in cannelure 2, a part is outside cannelure 2, the axial endplay power non-impregnated stator winding 5 being produced by certain thickness insulation back-up ring 4 is transmitted to wavy spring 2, both limited the axial displacement of the non-impregnated winding 5 of stator in stator core 6, suppress again axial vibration.The method can be used separately in the non-impregnated winding of stator 5 one end, also can use at the non-impregnated winding of stator 5 two ends simultaneously.The present embodiment adopts said structure form, has avoided the non-impregnated axis of winding of stator to produce the possibility of displacement, has met and has ensured that winding does not produce the requirement of damage because of winding motion.
Claims (6)
1. the anti-axial endplay structure of motor stator winding, comprise electric machine casing, it is characterized in that, at least on the medial surface of one end, near winding overhang place, cannelure is set at described electric machine casing, the elastic annular block assembly of restriction stator winding axial motion is set in described cannelure.
2. the anti-axial endplay structure of motor stator winding according to claim 1, it is characterized in that, described elastic annular block assembly comprises the elastic washer and the insulation back-up ring that stack, wherein said insulation back-up ring contacts with stator winding end face, and the difference of the internal-and external diameter of described elastic washer is greater than the degree of depth of described cannelure.
3. the anti-axial endplay structure of motor stator winding according to claim 2, is characterized in that, described insulation back-up ring is insulative thermosetting resin back-up ring.
4. the anti-axial endplay structure of motor stator winding according to claim 3, is characterized in that, described insulative thermosetting resin back-up ring is one of epoxy plate insulation back-up ring, glass mat insulation back-up ring or polyether-ether-ketone plate insulation back-up ring.
5. the anti-axial endplay structure of motor stator winding according to claim 2, is characterized in that, described elastic washer is wavy spring.
6. the anti-axial endplay structure of motor stator winding according to claim 5, is characterized in that, the breach type wavy spring that described wavy spring is steel or buckle-type wavy spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420371571.1U CN203967867U (en) | 2014-07-07 | 2014-07-07 | The anti-axial endplay structure of a kind of motor stator winding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420371571.1U CN203967867U (en) | 2014-07-07 | 2014-07-07 | The anti-axial endplay structure of a kind of motor stator winding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203967867U true CN203967867U (en) | 2014-11-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420371571.1U Active CN203967867U (en) | 2014-07-07 | 2014-07-07 | The anti-axial endplay structure of a kind of motor stator winding |
Country Status (1)
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| CN (1) | CN203967867U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108303560A (en) * | 2018-04-18 | 2018-07-20 | 北京方等传感器研究所有限公司 | Anti-channeling structure and sensor |
-
2014
- 2014-07-07 CN CN201420371571.1U patent/CN203967867U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108303560A (en) * | 2018-04-18 | 2018-07-20 | 北京方等传感器研究所有限公司 | Anti-channeling structure and sensor |
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| GR01 | Patent grant |