CN101976918A - Sealing device for permanent magnet of inner rotator permanent magnet motor and sealing method - Google Patents
Sealing device for permanent magnet of inner rotator permanent magnet motor and sealing method Download PDFInfo
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- CN101976918A CN101976918A CN 201010504822 CN201010504822A CN101976918A CN 101976918 A CN101976918 A CN 101976918A CN 201010504822 CN201010504822 CN 201010504822 CN 201010504822 A CN201010504822 A CN 201010504822A CN 101976918 A CN101976918 A CN 101976918A
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Abstract
The invention relates to a sealing device for a permanent magnet of an inner rotator permanent magnet motor and a sealing method, which is used for sealing an inner rotator which is provided with the permanent magnet, and the sealing device is provided with a cavity which is composed of a module sleeve and an end cover and is capable of sealing a rotator block. In the invention, a thin steel strip fixes glass fiber on the permanent magnet of the inner rotator, paraffin wax or other low-melting point substances are used for sealing the module sleeve, and the permanent magnet of the permanent magnet motor of the inner rotator is sealed by pouring and sealing resin in vacuum. The sealing device and the sealing method of the invention can effectively improve the quality of permanent magnet sealing, fully ensure that the regulated vacuum can be reached during vacuumization, improve the work efficiency of vacuum pouring by more than 50%; and because that the cylindricity of the inner circle of the rotator block after sealing can meet the requirement, no labor is needed for repairing a workpiece subject to being poured and sealed with the resin, thus the amount of work and labor intensity of personnel are greatly reduced.
Description
Technical field
The present invention relates to a kind of sealing device and encapsulating method of internal rotor permanent-magnetic motor permanent magnet.
Background technology
Need to install the permanent magnet pole of tile shape on the rotor block of internal rotor permanent-magnetic motor, no matter be to adopt special-shaped groove or isolating bar fixes permanent magnet pole, all having the existence of many slits between the permanent magnet and between permanent magnet and rotor block, special-shaped groove or the isolating bar, the existence in these slits can reduce the firmness that permanent magnet is installed, so will pour into sealing resin in these slits; In addition, because permanent magnet is easy to sustain damage outside being exposed to, therefore, attach the glass fabric of protection usefulness at the upper surface of permanent magnet.
Usually to use the method for priming by vacuum sealing resin just can reach the quality requirement that seals permanent magnet, at first will make permanent magnet, glass fabric and extraneous air isolated during sealing, after this confined space is vacuumized, could be wherein with the sealing resin perfusion.Now the vacuum pumping method that adopts usually is in the manual air tight membrane of pasting of permanent magnet surfaces; but because rotor block workpiece volume is bigger; air tight membrane need be carried out the many places splicing; interface and air tight membrane and workpiece joint portion are difficult to guarantee airtight; cause vacuum degree not reach the requirement of regulation; can not guarantee that sealing resin is full of all slits; simultaneously; because air tight membrane can't be close to workpiece; cause sealing resin trickling downwards under the effect of gravity; the requirement that makes the cylindricity of rotor block part not reach regulation usually also will spend a large amount of time to measure and root out unnecessary sealing resin behind the perfusion sealing resin.
Disclose a kind of method of permanent magnet of the rotor that is used to seal generator at the Chinese patent CN101572461A of first to file " being used to seal the method for permanent magnet of rotor of generator and the rotor of generator ", this method is that the end barriers part is arranged in vacating on the part of rotor yoke; With thin sheet of non-magnetic material permanent magnet and distance piece are wrapped, the whole length of this sheet covers rotor comprises the end barriers part; Air tight membrane is arranged in the outside of thin slice, and makes the end seal of it and rotor yoke, like this, barrier film and rotor yoke form air tight enclosure together; Apply vacuum to the air tight enclosure between barrier film and rotor yoke; With resin dosing equipment to this air tight enclosure; And making this hardening of resin, the method is handwork basically, is difficult to guarantee the sealing of air tight enclosure.
Summary of the invention
The technical problem to be solved in the present invention is: for solving the deficiencies in the prior art, a kind of sealing device and encapsulating method of internal rotor permanent-magnetic motor permanent magnet are provided, can make glass fabric be close to the internal rotor permanent-magnetic body easily and effectively, and guarantee can be full of sealing resin between the permanent magnet slit and between permanent magnet and the glass fabric, reach seal request.
The technical solution adopted for the present invention to solve the technical problems is: a kind of sealing device of internal rotor permanent-magnetic motor permanent magnet, be used to be sealed and installed with the internal rotor of permanent magnet, described internal rotor has main shaft, is sleeved on the rotor block on the main shaft, have permanent magnet on the rotor block outer surface, described sealing device has the cavity that is combined to form by die sleeve and end cap of a salable fixed rotor body; The center, upper surface of cavity has and is used for the location hole that main shaft inserts, have more than one paraffin inlet and more than one sealing resin inlet on the upper surface of cavity, cavity has the more than one conduit outlet that vacuumizes, the circle diameter that the circle diameter that described paraffin inlet distributes distributes greater than permanent magnet, described sealing resin inlet is positioned at paraffin inlet inboard.
The upper surface of cavity is provided with the upper sealing device that is tightly connected with the rotor block upper surface, upper sealing device is positioned at sealing resin inlet inboard, the lower surface of cavity is provided with the lower sealing device that is tightly connected with the rotor block lower surface, lower sealing device is positioned at inboard, permanent magnet outer ring, and electric heating element is equipped with in the lower surface of described cavity.
Further, described die sleeve has the bowl-shape cavity that is made of its upper surface and circular sidewall, the internal diameter of the inner chamber that sidewall forms is greater than the external diameter of rotor block, the degree of depth of cavity is greater than the width of rotor block, described paraffin inlet and sealing resin inlet all are positioned at the upper surface of die sleeve, describedly vacuumize the sidewall that conduit outlet is positioned at die sleeve; Described upper sealing device is positioned at the inboard, upper surface of die sleeve;
Described end cap is the hollow ring that upper and lower two-layer step forms, end cap cooperates the cavity that forms the rotor block sealing and fixing with die sleeve, leave the gap between the upper surface of lower floor's step of end cap and the bottom surface of die sleeve sidewall, the lower surface of described cavity is the upper surface of the upper strata step of end cap, and described lower sealing device is positioned on the upper surface of upper strata step of end cap.
Further, described die sleeve and end cap are made by nonmagnetic substance.
Further, the sidewall outer surface of described die sleeve is provided with more than one bolt lug, have more than one on the upper surface of lower floor's step of described end cap and the corresponding bolt hole of bolt lug, the bolt lug is fixedlyed connected by screw bolt and nut with bolt hole.
Further, described upper sealing device comprises sealing strip and last sealed groove, and last sealing strip embeds to be gone up in the sealed groove, and described lower sealing device comprises lower seal bar and lower seal groove, and the lower seal bar embeds to be gone up in the sealed groove.
A kind of encapsulating method that uses the sealing device sealing internal rotor of above-mentioned internal rotor permanent-magnetic motor permanent magnet, this method is: at first the skin of the permanent magnet on rotor block is laid glass fabric, outside glass fabric, cover one deck release cloth, the thin steel band of one or more is entangled in the outside of release cloth, utilize the attraction of permanent magnet to thin steel band, with glass fabric and release cloth lock ring on rotor block.
Vacuum extractor is fixed on thin steel band or the release cloth, vacuum extractor has the conduit of vacuumizing, on vacuum extractor, cover one deck barrier film, perforate will vacuumize conduit and pass from the hole on barrier film, and the flanging of two side direction of barrier film is bonded in respectively on the upper and lower end face of rotor block.
With the rotor block sealing and fixing in the cavity that is combined to form by die sleeve and end cap, vacuumizing conduit draws by vacuumizing conduit outlet, the space that vacuumizes conduit outlet and vacuumize between the conduit is shut, the conduit outlet that vacuumizes that vacuumizes conduit is not installed is also all blocked.
With heating paraffin to more than the fusing point, keep its molten state, inject by the paraffin inlet, space between barrier film and die sleeve, the end cap is filled up, between the permanent magnet and the space of sealing with the isolated fully formation in outside between permanent magnet and the glass fabric, after paraffin solidifies, will screw with the valve on the pipeline that the sealing resin inlet communicates.
To vacuumize conduit is connected with vacuum pump, and the startup vacuum pump vacuumizes, after treating that vacuum degree reaches set point, open with pipeline that the sealing resin inlet communicates on valve, sealing resin injects rotor block along pipeline through the sealing resin inlet, in the slit between permanent magnet and glass fabric, after sealing resin solidifies, open electric heating element, cover stay-warm case, paraffin melts once more, keeps a little higher than paraffin melting point temperature of temperature, paraffin is discharged, remove the permanent magnet sealing device, remove all sealing resin flow in pipes and vacuum extractor, just finished the permanent magnet seal operation after clearing up.
When sealing resin solidifies, when ambient temperature is lower than sealing resin and solidifies desired temperature, open electric heating element, and be incubated, when ambient temperature is higher than sealing resin and solidifies desired temperature, then should reduce the temperature of sealing resin.
The invention has the beneficial effects as follows: the sealing device of internal rotor permanent-magnetic motor permanent magnet of the present invention and encapsulating method can improve the quality of permanent magnet sealing effectively, fully guarantee to reach the specified vacuum degree when vacuumizing, the operating efficiency that can improve priming by vacuum is more than 50%, because the cylindricity of circle can obtain requirement in the rotor block of sealing back, less needs are manually repaired the workpiece behind the perfusion sealing resin, can reduce operating personnel's workload and labour intensity widely.
Description of drawings
The present invention is further described below in conjunction with accompanying drawing.
Fig. 1 is the structural representation of the present invention's internal rotor of being used to seal;
Fig. 2 is the perspective view of die sleeve among the present invention;
Fig. 3 is the perspective view after the die sleeve of Fig. 2 overturns;
Fig. 4 is the perspective view of end cap among the present invention;
Fig. 5 is the partial sectional view of end cap among the present invention;
Fig. 6 is the use schematic diagram that adopts sealing device of the present invention and encapsulating method sealing internal rotor;
Fig. 7 is the partial sectional view when adopting the internal rotor seal of sealing device of the present invention and encapsulating method;
Fig. 8 is the enlarged diagram at A place among Fig. 7;
Wherein: 1. internal rotor, 11. main shafts, 12. rotor blocks, 13. permanent magnet, 14. slits, 15. flange ends, 16. glass fabric, 2. die sleeve, 21. bolt lugs, 22. vacuumize conduit outlet, sealed groove on 23., sealing strip on 24., 24 '. lower seal bar, 25. paraffin inlets, 26. sealing resin inlets, 27. location hole, 3. end cap, 31. lower seal grooves, 32. bolt hole, 33. electric heating elements, 34. bolts, 35. nut, 36. gaps, 4. thin steel band, 5. vacuum extractor, 51. vacuumize conduit, 6. release cloth, 7. barrier film.
Embodiment
A kind of permanent magnet sealing device of internal rotor permanent-magnetic motor, be used to be sealed and installed with the internal rotor of permanent magnet, as shown in Figure 1, internal rotor 1 has main shaft 11, is sleeved on the rotor block 12 of the hub-like on the main shaft 11, permanent magnet 13 annular arrangements are arranged on the outer cylinder surface of rotor block 12, and slit, many places 14 is arranged between permanent magnet 13.Main shaft 11 1 ends are flange end 15, and the other end is an optical axis.
The sealing device of internal rotor permanent-magnetic motor permanent magnet has the cavity that is combined to form by die sleeve and end cap of a salable fixed rotor body, and die sleeve 2 adopts nonmagnetic substances to make, and preferably adopts aluminium alloy casting to form.End cap 3 adopts nonmagnetic substance to make, and preferably adopts aluminium alloy casting to form.
Shown in Figure 3 as Fig. 2, die sleeve 2 has the bowl-shape cavity that is made of its upper surface and circular sidewall, the center, upper surface has location hole 27, the inner chamber that sidewall forms is concentric with location hole 27, the internal diameter of the inner chamber that sidewall forms is greater than the external diameter of rotor block 12, the degree of depth of cavity is greater than the width of rotor block 12, have a plurality of paraffin inlets 25 and a plurality of sealing resin inlet 26 on the upper surface of die sleeve 2, the sidewall of die sleeve 2 has a plurality of conduit outlets 22 that vacuumize, the circle diameter that the circle diameter that paraffin inlet 25 distributes distributes greater than permanent magnet 13, sealing resin inlet 26 is positioned at paraffin inlet 25 inboards.The bottom, upper surface of die sleeve 2 is provided with the upper sealing device that is tightly connected with rotor block 12 upper surfaces, upper sealing device is positioned at stop-leak compound inlet 26 inboards, upper sealing device comprises sealing strip 24 and last sealed groove 23, and last sealing strip 24 embeds to be gone up in the sealed groove 23.When internal rotor was sealed, sealing resin inlet 26 communicated with the sealing resin storage tank by pipeline, is provided with a plurality of valves on pipeline.
Shown in Figure 5 as Fig. 4, end cap 3 is the hollow ring that upper and lower two-layer step forms, end cap 3 cooperates the cavity that forms rotor block 12 sealing and fixing with die sleeve 2, leave gap 36 between the bottom surface of the upper surface of lower floor's step of end cap 3 and die sleeve 2 sidewalls, the top, upper surface of the upper strata step of end cap 3 is provided with the lower sealing device that is tightly connected with rotor block 12 lower surfaces, lower sealing device is positioned at inboard, permanent magnet 13 outer ring, lower sealing device comprises lower seal bar 24 ' and lower seal groove 31, and lower seal bar 24 ' embeds to be gone up in the sealed groove 31.End cap 3 bottoms have the blind hole of a plurality of symmetries, and the electric heating element 33 of adjustable power is installed in the blind hole.
The sidewall outer surface of die sleeve 2 is provided with a plurality of bolt lugs 21, has a plurality of on the upper surface of lower floor's step of end cap 3 and bolt lug 21 corresponding bolts hole 32, and bolt lug 21 is fixedlyed connected with nut 35 by bolt 34 with bolt hole 32.
A kind of encapsulating method of permanent magnet of internal rotor permanent-magnetic motor, this method step is as follows: shown in Figure 8 as Fig. 6 Fig. 7, before implementing sealing, elder generation is with main shaft 11 horizontal positioned of internal rotor 1, the permanent magnet 13 outer glass fabrics 16 of laying on rotor block 12, justified margin, outside glass fabric 16, cover one deck release cloth 6, the thin steel band 4 of one or more on release cloth 6 outer cover, utilize the attraction of 13 pairs of thin steel bands 4 of permanent magnet, tension glass fabric 16 and release cloth 6, with glass fabric 16 and release cloth 6 lock rings on rotor block 12.
Select several vacuum extractors 5 of suitable location arrangements, use adhesive tape that vacuum extractor 5 is fixed on thin steel band 4 or the release cloth 6, vacuum extractor 5 comprises VAP film, water conservancy diversion net, helix tube and vacuumizes conduit 51, on vacuum extractor 5, cover one deck barrier film 7, perforate will vacuumize conduit 51 and pass from the hole on barrier film 7, for preventing that paraffin is seeped on the glass fabric 16, be bonded in respectively on upper and lower two end faces of rotor block 12 with the flanging of adhesive tape with two side direction of barrier film 7.
The flange end 15 of internal rotor 1 is sling down, 11 one-tenth verticals of main shaft, be inserted in end cap 3 earlier from the bottom, after rotor block 12 falls and fixes, be inserted in die sleeve 2 from main shaft 11 tops, make main shaft 11 aim at the location hole 27 of die sleeve 2, rotating die sleeve 2 makes conduit outlet 22 alignings that vacuumize on the sidewall vacuumize conduit 51, vacuumizing conduit 51 draws by vacuumizing conduit outlet 22, the space that vacuumizes conduit outlet 22 and vacuumize between the conduit 51 is shut, the conduit outlet 22 that vacuumizes that vacuumizes conduit 51 is not installed is also all blocked.
Upwards promote end cap 3 again, die sleeve 2 is fixedlyed connected with nut 35 by bolt 34 with end cap 3, screw two end faces up and down that lower sealing device that bolt 34 makes die sleeve 2 upper sealing devices and end cap 3 is adjacent to rotor block 12.
With heating paraffin to more than the fusing point, keep its molten state, inject by the paraffin inlet on the die sleeve 2 25, space between barrier film 7 and die sleeve 2, the end cap 3 is filled up, between the permanent magnet 13 and space of sealing with the isolated fully formation in outside between permanent magnet 13 and the glass fabric 16, after paraffin solidifies, will screw with the valve on sealing resin inlet 26 is threaded a pipe mutually.
To vacuumize conduit 51 is connected with vacuum pump, and the startup vacuum pump vacuumizes, after treating that vacuum degree reaches set point, open with pipeline that sealing resin inlet 26 communicates on valve, sealing resin injects rotor block 12 along pipeline through sealing resin inlet 26, in all slits that permanent magnet 13 and glass fabric are 16, after sealing resin solidifies, open electric heating element 33, cover stay-warm case, paraffin melts once more, keep a little higher than paraffin melting point temperature of temperature, paraffin is discharged, unscrew bolt 34 with the method for extraction or sucking-off, the die sleeve 2 of slinging, remove end cap 3, remove all sealing resin flow in pipes and vacuum extractor, just finished the permanent magnet seal operation after clearing up.
When sealing resin solidifies, when ambient temperature is lower than sealing resin and solidifies desired temperature, open electric heating element 33, and be incubated, when ambient temperature is higher than sealing resin and solidifies desired temperature, then should reduce the temperature of sealing resin.
The present invention is fixed on glass fabric 16 on the permanent magnet 13 of internal rotor 1 with thin steel band 4, with paraffin or other low melting points sealing die sleeve 2, and adopts the priming by vacuum sealing resin that the permanent magnet 13 of internal rotor magneto is sealed.Adopt the internal rotor 1 of sealing device of the present invention and encapsulating method sealing, its sealing resin is full of fully and reaches all slits between permanent magnet 13 and the glass fabric 16 between the permanent magnet 13, the cylindricity of the rotor block 12 that the perfusion sealing obtains can meet the demands, follow-up measurement and the workload of rooting out unnecessary sealing resin reduce, encapsulating method is simple to operate, and rotor block 12 sealing properties that obtain after the sealing improve.
It should be noted that at last: above embodiment only in order to the explanation the present invention and and unrestricted technical scheme described in the invention; Therefore, although this specification has been described in detail the present invention with reference to the foregoing description,, those of ordinary skill in the art should be appreciated that still and can make amendment or be equal to replacement the present invention; And all do not break away from the technical scheme and the improvement thereof of the spirit and scope of the present invention, and it all should be encompassed in the claim scope of the present invention.
Claims (8)
1. the sealing device of an internal rotor permanent-magnetic motor permanent magnet, be used to be sealed and installed with the internal rotor of permanent magnet, described internal rotor (1) has main shaft (11), is sleeved on the rotor block (12) on the main shaft (11), have permanent magnet (13) on rotor block (12) outer surface, it is characterized in that: described sealing device has the cavity that is combined to form by die sleeve (2) and end cap (3) of a salable fixed rotor body (12); The center, upper surface of cavity has and is used for the location hole (27) that main shaft (11) inserts, have more than one paraffin inlet (25) and more than one sealing resin inlet (26) on the upper surface of cavity, cavity has the more than one conduit outlet (22) that vacuumizes, the circle diameter that the circle diameter that described paraffin inlet (25) distributes distributes greater than permanent magnet (13), described sealing resin inlet (26) is positioned at paraffin inlet (25) inboard;
The upper surface of cavity is provided with the upper sealing device that is tightly connected with rotor block (12) upper surface, upper sealing device is positioned at sealing resin inlet (26) inboard, the lower surface of cavity is provided with the lower sealing device that is tightly connected with rotor block (12) lower surface, lower sealing device is positioned at permanent magnet (13) inboard, outer ring, and electric heating element (33) is equipped with in the lower surface of described cavity.
2. the sealing device of internal rotor permanent-magnetic motor permanent magnet as claimed in claim 1, it is characterized in that: described die sleeve (2) has the bowl-shape cavity that is made of its upper surface and circular sidewall, the internal diameter of the inner chamber that sidewall forms is greater than the external diameter of rotor block (12), the degree of depth of cavity is greater than the width of rotor block (12), described paraffin inlet (25) and sealing resin inlet (26) all are positioned at the upper surface of die sleeve (2), describedly vacuumize the sidewall that conduit outlet (22) is positioned at die sleeve (2); Described upper sealing device is positioned at the inboard, upper surface of die sleeve (2);
Described end cap (3) is the hollow ring that upper and lower two-layer step forms, end cap (3) cooperates the cavity that forms rotor block (12) sealing and fixing with die sleeve (2), leave gap (36) between the bottom surface of the upper surface of lower floor's step of end cap (3) and die sleeve (2) sidewall, the lower surface of described cavity is the upper surface of the upper strata step of end cap (3), and described lower sealing device is positioned on the upper surface of upper strata step of end cap (3).
3. the sealing device of internal rotor permanent-magnetic motor permanent magnet as claimed in claim 1 is characterized in that: described die sleeve (2) and end cap (3) are made by nonmagnetic substance.
4. the sealing device of internal rotor permanent-magnetic motor permanent magnet as claimed in claim 2, it is characterized in that: the sidewall outer surface of described die sleeve (2) is provided with more than one bolt lug (21), have more than one on the upper surface of lower floor's step of described end cap (3) and the corresponding bolt hole of bolt lug (21) (32), bolt lug (21) is fixedlyed connected with nut (35) by bolt (34) with bolt hole (32).
5. the sealing device of internal rotor permanent-magnetic motor permanent magnet as claimed in claim 1, it is characterized in that: described upper sealing device comprises sealing strip (24) and last sealed groove (23), in last sealing strip (24) embedding in the sealed groove (23), described lower sealing device comprises lower seal bar (24 ') and lower seal groove (31), and lower seal bar (24 ') embeds in the lower seal groove (31).
6. the encapsulating method of a sealing device sealing internal rotor that uses each described internal rotor permanent-magnetic motor permanent magnet of claim 1 to 5, it is characterized in that: this method is:
At first at the outer glass fabric (16) of laying of the permanent magnet (13) of rotor block (12), outside glass fabric (16), cover one deck release cloth (6), the thin steel band (4) of one or more is entangled in the outside of release cloth (6), utilize the attraction of permanent magnet (13) to thin steel band (4), with glass fabric (16) and release cloth (6) lock ring on rotor block (12);
Vacuum extractor (5) is fixed on thin steel band (4) or the release cloth (6), vacuum extractor (5) has the conduit of vacuumizing (51), go up covering one deck barrier film (7) at vacuum extractor (5), go up perforate at barrier film (7) and will vacuumize conduit (51) and from the hole, pass, the flanging of two side direction of barrier film (7) is bonded in respectively on the upper and lower end face of rotor block (12);
With rotor block (12) sealing and fixing in the cavity that is combined to form by die sleeve (2) and end cap (3), vacuumizing conduit (51) draws by vacuumizing conduit outlet (22), shut in the space that will vacuumize conduit outlet (22) and vacuumize between the conduit (51), the conduit outlet (22) that vacuumizes that vacuumizes conduit (51) is not installed is also all blocked;
Low melting point is heated to more than the fusing point, keep its molten state, inject by paraffin inlet (25), space between barrier film (7) and die sleeve (2), the end cap (3) is filled up, between the permanent magnet (13) and the space of sealing with the isolated fully formation in outside between permanent magnet (13) and the glass fabric (16), after low melting point solidifies, will screw with the valve on the pipeline that sealing resin inlet (26) communicate;
To vacuumize conduit (51) is connected with vacuum pump, and the startup vacuum pump vacuumizes, after treating that vacuum degree reaches set point, open with pipeline that sealing resin inlet (26) communicates on valve, sealing resin injects rotor block (12) along pipeline through sealing resin inlet (26), in the slit between permanent magnet (13) and glass fabric (16), after sealing resin solidifies, open electric heating element (33), low melting point melts once more, keep a little higher than low melting point melting temperature of temperature, low melting point is discharged, remove the permanent magnet sealing device, remove all sealing resin flow in pipes and vacuum extractor (5), just finished the permanent magnet seal operation after clearing up.
7. described encapsulating method as claimed in claim 6 is characterized in that: described low melting point is a paraffin.
8. described encapsulating method as claimed in claim 6, it is characterized in that: when sealing resin solidifies, when ambient temperature is lower than sealing resin and solidifies desired temperature, open electric heating element (33), and be incubated, when ambient temperature is higher than sealing resin and solidifies desired temperature, then should reduce the temperature of sealing resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010504822 CN101976918B (en) | 2010-09-30 | 2010-09-30 | Sealing device for permanent magnet of inner rotator permanent magnet motor and sealing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010504822 CN101976918B (en) | 2010-09-30 | 2010-09-30 | Sealing device for permanent magnet of inner rotator permanent magnet motor and sealing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101976918A true CN101976918A (en) | 2011-02-16 |
| CN101976918B CN101976918B (en) | 2012-12-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201010504822 Active CN101976918B (en) | 2010-09-30 | 2010-09-30 | Sealing device for permanent magnet of inner rotator permanent magnet motor and sealing method |
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| CN105973782A (en) * | 2016-05-25 | 2016-09-28 | 长安大学 | Determination instrument and determination method for osmotic coefficients of drilling and coring test part |
| WO2018076959A1 (en) * | 2016-10-31 | 2018-05-03 | 北京金风科创风电设备有限公司 | Process and process apparatus for forming protective coating on magnetic pole of permanent magnet motor |
| EP3382866A4 (en) * | 2016-10-31 | 2019-07-31 | Beijing Goldwind Science & Creation Windpower Equipment Co., Ltd. | Process and process apparatus for forming protective coating on magnetic pole of permanent magnet motor |
| US10840783B2 (en) | 2016-10-31 | 2020-11-17 | Beijing Goldwin Science & Creation Equipment Co., Ltd. | Process and process apparatus for forming protective coating on magnetic pole of permanent magnet motor |
| CN109968694A (en) * | 2019-01-15 | 2019-07-05 | 北京金风科创风电设备有限公司 | Vacuum-assisted resin infusion method for motor rotor |
| CN109968694B (en) * | 2019-01-15 | 2023-09-29 | 北京金风科创风电设备有限公司 | Vacuum auxiliary resin pouring method for motor rotor |
| CN112910203A (en) * | 2021-04-02 | 2021-06-04 | 威海锦阳电子有限公司 | Manufacturing method of outer rotor of motor |
| DE102022116610A1 (en) | 2022-07-04 | 2024-01-04 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Method for producing a rotor assembly |
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