CN105186745A - Motor rotor assembly structure and airflow generator with same - Google Patents
Motor rotor assembly structure and airflow generator with same Download PDFInfo
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- CN105186745A CN105186745A CN201510719455.3A CN201510719455A CN105186745A CN 105186745 A CN105186745 A CN 105186745A CN 201510719455 A CN201510719455 A CN 201510719455A CN 105186745 A CN105186745 A CN 105186745A
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- bearing
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- sleeve
- assembly structure
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Abstract
The invention aims to provide a motor rotor assembly structure, which comprises a motor bracket, a bearing sleeve cover, a main shaft, a lower bearing, an upper bearing, a lower T-shaped sleeve, an upper T-shaped sleeve and magnetic steel, wherein the main shaft is arranged on the motor bracket; the bearing sleeve and the motor support are of an integrally formed connecting structure; the main shaft is provided with two thread grooves which are respectively rotated left and right, and the thread pitches of the two thread grooves are equal; the magnetic steel is arranged in the middle of the main shaft. The invention also provides an airflow generator with the motor rotor assembly structure, which has the beneficial effects that: can promote the axiality precision when rotor and motor support cooperate, reduce the magnetic leakage phenomenon of rotor during operation simultaneously, reduce the intensification volume of bearing, promote the firm in connection degree of magnet steel and main shaft, can make the inside heat of bearing sleeve in time discharge, this airflow generator's beneficial effect is that the assembly is simple, long service life, but continuous high rotational speed uses, guarantees airflow generator whole job stabilization.
Description
Technical field
The present invention relates to motor assembling manufacturing and application thereof, particularly relate to a kind of rotor assembly structure and the flow generator with this structure.
Background technology
Motor is a kind of equipment electric energy being converted to mechanical energy.It utilizes stator winding to produce rotating magnetic field and act on rotor to form electro-magnetic motor force rotation torque.Motor forms primarily of stator and rotor, and the direction of electrified wire movement under force in magnetic field is relevant with magnetic induction line (magnetic direction) direction with the sense of current.Motor operation principle is magnetic field to the stressed effect of electric current, and motor is rotated.
Brushless, permanently excited direct current motor is the DC motor being set up magnetic field by one or more permanent magnet, and its performance is similar to the DC motor with separate excitation of constant excitation megnet electric current, can carry out speed governing easily by change armature voltage.Compared with separated exciting DC motor, having the advantages such as volume is little, efficiency is high, structure is simple, copper consumption is few, is the main Types of low powered DC motor.
The major part of motor comprises rotor and motor stator, and rotor is the rotating parts in motor.
The assembly structure of the rotor of first existing brshless DC motor is not generally provided with bearing sleeve; not good to the integral sealing protection of rotor; the life-span of bearing is easily affected because dust enters; and part is provided with the rotor assembly structure of closed bearing sleeve; its bearing sleeve part and electric machine support are split type syndeton, poor for axial axiality during spindle mounted.
Secondly the assembly structure magnet steel of the rotor of existing brshless DC motor is generally directly adhered to smooth main shaft surface, bonding force is each other less, at higher rotational speeds, easily to depart from, such as medical breathing machine inside miniature air stream generator inside needed for rotor, rotating speed is generally per minute 30000 and turns left the right side, and generally needs to use more than 10 hours continuously, therefore to the connection height between magnet steel and main shaft fixing require higher.And when continuous high temperature and high strength running, likely there is local deformation in main shaft, affects the mechanical performance of main shaft.
The assembly structure of the rotor of existing brshless DC motor has comparatively significantly leakage field phenomenon in use around magnet steel in addition, not only affects the operating efficiency of motor, and can increase the degree of heat of bearing, reduces the useful life of bearing.
Flow generator principle is rotated by motor shaft to drive fan to rotate generation air-flow, can be applicable in the equipment such as the lung ventilator of medical field, because it often needs Long-Time Service, and equipment volume can not be excessive, all has higher requirements to the stability and current rate producing air-flow, therefore little to motor General Requirements volume selected by its inside, lightweight, long-time continuous can use, and require higher to stabilization of equipment performance, device fails should be avoided as far as possible, affect the use of related medical apparatus.
Summary of the invention
The object of this invention is to provide a kind of rotor, by setting up the integrated bearing sleeve structure with electric machine support, promoting the proofing dust and protecting to rotor structure, promote coaxial accuracy when rotor coordinates with electric machine support; By setting up upper T-shaped sleeve and upper T-shaped sleeve, accurately can locate the assembling of magnet steel, reduce leakage field phenomenon during working rotor, lifting motor operating efficiency, reduces the intensification of bearing simultaneously simultaneously, ensures the useful life of bearing; By increasing thread groove on main shaft surface, promote the degree of being connected firmly of magnet steel and main shaft, thermolysis can be played to bearing sleeve inside simultaneously, promote the whole service life of bearing sleeve inner rotor frame, and the space that thread groove is formed can offset the impact such as bending grade that main shaft causes because of local deformation to a certain extent, thus ensures the coaxial accuracy of main shaft.
The present invention also provides a kind of flow generator with described rotor assemble mechanism, can ensure that flow generator volume is little, lightweight, can work long hours continuously, and rotor job stability comparatively common electric machine rotor have and more obviously provide, thus improve the overall work stability of flow generator.
Technical scheme of the present invention is: a kind of rotor assembly structure, comprises electric machine support, bearing sleeve, bearing holder (housing, cover) cover, main shaft, lower bearing, upper bearing (metal), lower T-shaped sleeve, upper T-shaped sleeve and magnet steel;
Electric machine support bosom is located at by described bearing sleeve, and described bearing sleeve and electric machine support are formed in one syndeton;
Described bearing sleeve is covered on bearing sleeve top;
Described main shaft is provided with distinguishes two thread grooves that are left-handed, dextrorotation, and the pitch of two thread grooves is equal;
Described magnet steel is located in the middle part of main shaft, be fixedly connected with between main shaft, magnet steel bottom is located at by described lower T-shaped sleeve, be fixedly connected with between main shaft, lower T-shaped lower cartridge is located at by described lower bearing, is fixedly connected with between main shaft, magnet steel top is located at by described T-shaped sleeve, be fixedly connected with between main shaft, T-shaped upper cartridge is located at by described upper bearing (metal), is fixedly connected with between main shaft;
Be fixedly connected with inside bearing sleeve outside described upper bearing (metal), be fixedly connected with inside bearing sleeve outside described lower bearing.
Further, described bearing sleeve inner bottom is provided with spring, described spring can play the effect providing pretightning force when mounted, in rotor assembling process, rotor is put into bearing sleeve, spring can provide a power upwards to lower bearing, the upper surface of upper bearing (metal) is made to exceed edge on bearing sleeve a little, now by bearing sleeve cover buckle on bearing sleeve top, by upper bearing (metal) upper surface press-in bearing sleeve in be fixed, can ensure that whole rotor structure is in the design attitude of assembling.
Further, for hot melt is riveted between described bearing holder (housing, cover) cover and bearing sleeve, this kind of connected mode, simple to operation, and firmness is high, and do not need to increase extra auxiliary component.
Further, described thread groove groove depth 0.1mm-0.5mm, described thread groove pitch is 1mm-20mm, the slot cross-section of described thread groove is triangle, during installation, this thread groove has auxiliary installation effect, magnet steel, upper bearing (metal), lower bearing, in the process that bonds on main shaft of the parts such as T-shaped sleeve, lower T-shaped sleeve, more adhesive can be stored in thread groove, simultaneously because the pitch of thread groove is equal, the contact of adhesive and related components can be made more even, make the connection of related components and main shaft more firm; When motor rotates, this screw thread provides cooling air path, helps the bilateral bearing heat radiation of motor, improves motor operation stability, extend electrical machinery life.The degree of depth of screw thread, width and pitch, relevant by motor size, running environment, overstocked, narrow, excessively dark screw thread easily affects the mechanical performance of main shaft, and then cooling effect is not obvious on the contrary.
In addition owing to main shaft having added thread groove, except providing the function of injecting glue and ventilation for main shaft, also can be understood as the gap can offsetting main shaft Metal Deformation under specific circumstances to a certain extent, when producing differential expansion during main shaft is because of long high temperature height rotary speed working, if the common main shaft without thread groove, can therefore produce bending, affect whole motor performance, and use the main shaft being threaded groove, then can by the change width of thread groove, prevent the flexural deformation of main shaft, the coaxial accuracy of main shaft can be ensured, thus avoid therefore to the adverse effect that whole motor service behaviour produces.
Further, described T-shaped sleeve is upper bush extension near upper bearing (metal) side, described lower T-shaped sleeve is lower sleeve extension near lower bearing side, described upper bush extension diameter is less than the diameter of upper bearing (metal), described lower sleeve extension diameter is less than the diameter of lower bearing, the above diameter difference is 0.2mm-0.5mm, and the object of design like this prevents from upper bush extension or lower sleeve extension from operationally producing with bearing sleeve to rub, and affects motor working efficiency.
Further, described spindle material is stainless steel, described T-shaped bush material is stainless steel, lower T-shaped bush material is stainless steel, it is high that stainless steel material has intensity, high temperature resistant, the feature such as corrosion-resistant, the performance of main shaft can be ensured well, and as sleeve to other supporting and location effects of magnet steel, simultaneously, stainless steel is as magnetic conductor of good performance, the effect guiding specification magnetic induction line can be played well, the magnetic force that magnet steel is produced acts on the scope between T-shaped sleeve and lower T-shaped sleeve as much as possible, reduce the impact on the upper bearing (metal) outside upper T-shaped sleeve and lower T-shaped sleeve and lower bearing, thus the heat that minimizing bearing produces because of electromagnetic induction, thus ensure the useful life of bearing.
Further, described electric machine support material is macromolecular material, its object is to ensure that the electric machine support of structure relative complex can be one-body molded, and processing technology difficulty is relatively low simultaneously, and has high temperature resistant, the features such as intensity is high, lightweight.
A kind of flow generator, motor internal rotor assembly structure comprises electric machine support, bearing sleeve, bearing holder (housing, cover) cover, main shaft, lower bearing, upper bearing (metal), lower T-shaped sleeve, upper T-shaped sleeve and magnet steel; Electric machine support bosom is located at by described bearing sleeve, and described bearing sleeve and electric machine support are formed in one syndeton; Described bearing sleeve is covered on bearing sleeve top; Described main shaft is provided with distinguishes two thread grooves that are left-handed, dextrorotation, and the pitch of two thread grooves is equal; Described magnet steel is located in the middle part of main shaft, be fixedly connected with between main shaft, magnet steel bottom is located at by described lower T-shaped sleeve, be fixedly connected with between main shaft, lower T-shaped lower cartridge is located at by described lower bearing, is fixedly connected with between main shaft, magnet steel top is located at by described T-shaped sleeve, be fixedly connected with between main shaft, T-shaped upper cartridge is located at by described upper bearing (metal), is fixedly connected with between main shaft; Be fixedly connected with inside bearing sleeve outside described upper bearing (metal), be fixedly connected with inside bearing sleeve outside described lower bearing.Described electric machine support top is provided with fan, and described electric machine support bottom is provided with lower fan.
Beneficial effect of the present invention is: by the global design to rotor assembly structure, while not increasing whole motor specification size, simplify assemble flow, promote assembly precision, pass through bearing sleeve, the a series of Curve guide impeller such as thread groove, promote the proofing dust and protecting to rotor structure, promote coaxial accuracy when rotor coordinates with electric machine support, reduce leakage field phenomenon during working rotor simultaneously, lifting motor operating efficiency, reduce the intensification amount of bearing, ensure the useful life of bearing, promote the degree of being connected firmly of magnet steel and main shaft, the heat of bearing sleeve inside can be made to discharge in time, promote the whole service life of bearing sleeve inner rotor frame, and the space that thread groove is formed can offset the impact such as bending grade that main shaft causes because of local deformation to a certain extent.
Beneficial effect of the present invention is also: with the flow generator of this rotor assembly structure, simple compared to the assembling of traditional flow generator, long service life, can use by continuous high rotating speed, and the inner overall heat of rotor can be reduced because this rotor main shaft is threaded groove, the impact such as bending grade that main shaft causes because of local deformation can be offset to a certain extent simultaneously, thus ensure more stable with the flow generator overall work state of this rotor assembly structure, ensure associated medical devices use safety.
Accompanying drawing explanation
In order to be illustrated more clearly in the specific embodiment of the invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is front view of the present invention;
Fig. 2 is the cutaway view of front view of the present invention;
Fig. 3 is the front view of rotor portion of the present invention;
Fig. 4 is the cutaway view of rotor portion front view of the present invention;
Fig. 5 is the front view of the embodiment of the present invention three.
Reference numeral:
1-electric machine support; 2-bearing sleeve; 3-bearing holder (housing, cover) cover;
4-main shaft; 5-spring; 6-lower bearing;
7-upper bearing (metal); T-shaped sleeve under 8-; The upper T-shaped sleeve of 9-;
10-magnet steel; Fan under the upper fan 12-of 11-
41-thread groove 81-lower sleeve extension 91-upper bush extension
Embodiment
Be clearly and completely described technical scheme of the present invention below in conjunction with accompanying drawing, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
In describing the invention, it should be noted that, orientation or the position relationship of the instruction such as term " " center ", " on ", D score, "left", "right", " vertically ", " level ", " interior ", " outward " they be based on orientation shown in the drawings or position relationship; be only the present invention for convenience of description and simplified characterization; instead of instruction or imply the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as limitation of the present invention.In addition, term " first ", " second ", " the 3rd " only for describing object, and can not be interpreted as instruction or hint relative importance.
In describing the invention, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, concrete condition above-mentioned term concrete meaning in the present invention can be understood.
Embodiment one
Fig. 1 is front view of the present invention, Fig. 2 is the cutaway view of front view of the present invention, Fig. 3 is the front view of rotor portion of the present invention, as schemed a kind of rotor assembly structure, comprise electric machine support 1, bearing sleeve 2, bearing holder (housing, cover) cover 3, main shaft 4, lower bearing 6, upper bearing (metal) 7, lower T-shaped sleeve 8, upper T-shaped sleeve 9 and magnet steel 10; Electric machine support 1 bosom is located at by described bearing sleeve 2, and described bearing sleeve 2 and electric machine support 1 are formed in one syndeton;
Described bearing holder (housing, cover) cover 3 is located at bearing sleeve 2 top;
The pitch that described main shaft 4 is provided with two thread grooves, 41, two thread grooves 41 of respectively left-handed, dextrorotation is equal;
Described magnet steel 10 is located in the middle part of main shaft 4, be fixedly connected with between main shaft 4, magnet steel 10 bottom is located at by described lower T-shaped sleeve 8, be fixedly connected with between main shaft 4, lower T-shaped sleeve 8 bottom is located at by described lower bearing 6, is fixedly connected with between main shaft 4, magnet steel 10 top is located at by described T-shaped sleeve 9, be fixedly connected with between main shaft 4, T-shaped sleeve 9 top is located at by described upper bearing (metal) 7, is fixedly connected with between main shaft 4;
Be fixedly connected with inside bearing sleeve 2 outside described upper bearing (metal) 7, be fixedly connected with inside bearing sleeve 2 outside described lower bearing 6.
Described bearing sleeve 2 inner bottom is provided with spring 5, described spring 5 can play the effect providing pretightning force when mounted, in rotor assembling process, rotor is put into bearing sleeve 2, spring can provide a power upwards to lower bearing 6, makes the upper surface of upper bearing (metal) 7 exceed edge on bearing sleeve 2 a little, now bearing holder (housing, cover) cover 3 is buckled in bearing sleeve 2 top, be fixed in upper bearing (metal) 7 upper surface press-in bearing sleeve 2, can ensure that whole rotor structure is in the design attitude of assembling.
For hot melt is riveted between described bearing holder (housing, cover) cover 3 and bearing sleeve 2, this kind of connected mode, simple to operation, and firmness is high, and do not need to increase extra auxiliary component.
Described thread groove 41 groove depth 0.2mm, described thread groove 41 pitch is 5mm, the slot cross-section of described thread groove 41 is triangle, during installation, this thread groove 41 has auxiliary installation effect, magnet steel 10, upper bearing (metal) 7, lower bearing 6, in the process that bonds on main shaft of the parts such as T-shaped sleeve 9, lower T-shaped sleeve 8, more adhesive can be stored in thread groove 41, make the connection of related components and main shaft more firm.
Embodiment two:
Fig. 1 is front view of the present invention, Fig. 2 is the cutaway view of front view of the present invention, Fig. 3 is the front view of rotor portion of the present invention, Fig. 4 is the cutaway view of rotor portion front view of the present invention, if figure is as a kind of rotor assembly structure of figure, comprise electric machine support 1, bearing sleeve 2, bearing holder (housing, cover) cover 3, main shaft 4, lower bearing 6, upper bearing (metal) 7, lower T-shaped sleeve 8, upper T-shaped sleeve 9 and magnet steel 10; Electric machine support 1 bosom is located at by described bearing sleeve 2, and described bearing sleeve 2 and electric machine support 1 are formed in one syndeton.
Described bearing holder (housing, cover) cover 3 is located at bearing sleeve 2 top.
Described main shaft 4 is provided with distinguishes two thread grooves 41 that are left-handed, dextrorotation, described magnet steel 10 is located in the middle part of main shaft 4, be fixedly connected with between main shaft 4, magnet steel 10 bottom is located at by described lower T-shaped sleeve 8, is fixedly connected with between main shaft 4, lower T-shaped sleeve 8 bottom is located at by described lower bearing 6, be fixedly connected with between main shaft 4, magnet steel 10 top is located at by described T-shaped sleeve 9, is fixedly connected with between main shaft 4, T-shaped sleeve 9 top is located at by described upper bearing (metal) 7, is fixedly connected with between main shaft 4.
Be fixedly connected with inside bearing sleeve 2 outside described upper bearing (metal) 7, be fixedly connected with inside bearing sleeve 2 outside described lower bearing 6.
Described bearing sleeve 2 inner bottom is provided with spring 5.
For hot melt is riveted between described bearing holder (housing, cover) cover 3 and bearing sleeve 2.
Described thread groove 41 groove depth 0.15mm, described thread groove 41 pitch is 6mm, and the slot cross-section of described thread groove 41 is semicircle.
Described T-shaped sleeve 9 is upper bush extension 91 near upper bearing (metal) 7 side, described lower T-shaped sleeve 8 is lower sleeve extension 81 near lower bearing 6 side, described upper bush extension 91 diameter is less than the diameter 0.3mm of upper bearing (metal) 7, described lower sleeve extension 81 diameter is less than the diameter 0.3mm of lower bearing 6, the object of such design prevents from upper bush extension or lower sleeve extension from operationally producing with bearing sleeve to rub, and affects motor working efficiency.
Described main shaft 4 material is stainless steel, described T-shaped sleeve 9 material is stainless steel, lower T-shaped sleeve 8 material is stainless steel, it is high that stainless steel material has intensity, high temperature resistant, the feature such as corrosion-resistant, the performance of main shaft can be ensured well, and as sleeve to other supporting and location effects of magnet steel, simultaneously, stainless steel is as magnetic conductor of good performance, the effect guiding specification magnetic induction line can be played well, the magnetic force that magnet steel 10 is produced acts on the scope between T-shaped sleeve 9 and lower T-shaped sleeve 8 as much as possible, reduce the impact on the upper bearing (metal) 7 outside upper T-shaped sleeve 9 and lower T-shaped sleeve 8 and lower bearing 6, thus the heat that minimizing bearing produces because of electromagnetic induction, recording through test selects stainless steel material to reduce by 18% as upper T-shaped sleeve 9 and the material of lower T-shaped sleeve 8 compared to temperature when selecting resin material that upper bearing (metal) 7 and lower bearing 6 can be made to use, thus ensure the greasy property of Bearing inner machine oil, promote the useful life of bearing.
Described electric machine support 1 material is macromolecular material, its object is to ensure that the electric machine support 1 of structure relative complex can be one-body molded, and processing technology difficulty is relatively low simultaneously, and has high temperature resistant, the features such as intensity is high, lightweight.
Described magnet steel 10 be bonding between main shaft 4, described T-shaped sleeve 9 be bonding between main shaft 4, described lower T-shaped sleeve 8 be bonding between main shaft 4.
Embodiment three
Fig. 5 is the front view of the embodiment of the present invention three, a kind of flow generator as Figure 1-Figure 5, its motor internal rotor assembly structure comprises, electric machine support 1, bearing sleeve 2, bearing holder (housing, cover) cover 3, main shaft 4, lower bearing 6, upper bearing (metal) 7, lower T-shaped sleeve 8, upper T-shaped sleeve 9 and magnet steel 10; Electric machine support 1 bosom is located at by described bearing sleeve 2, and described bearing sleeve 2 and electric machine support 1 are formed in one syndeton;
Described bearing holder (housing, cover) cover 3 is located at bearing sleeve 2 top;
The pitch that described main shaft 4 is provided with two thread grooves, 41, two thread grooves 41 of respectively left-handed, dextrorotation is equal;
Described magnet steel 10 is located in the middle part of main shaft 4, be fixedly connected with between main shaft 4, magnet steel 10 bottom is located at by described lower T-shaped sleeve 8, be fixedly connected with between main shaft 4, lower T-shaped sleeve 8 bottom is located at by described lower bearing 6, is fixedly connected with between main shaft 4, magnet steel 10 top is located at by described T-shaped sleeve 9, be fixedly connected with between main shaft 4, T-shaped sleeve 9 top is located at by described upper bearing (metal) 7, is fixedly connected with between main shaft 4;
Be fixedly connected with inside bearing sleeve 2 outside described upper bearing (metal) 7, be fixedly connected with inside bearing sleeve 2 outside described lower bearing 6.
Described electric machine support 1 top is provided with fan 11, and described electric machine support 1 bottom is provided with lower fan 12.
Last it is noted that above each embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to foregoing embodiments to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristic; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (10)
1. a rotor assembly structure, is characterized in that: comprise electric machine support, bearing sleeve, bearing holder (housing, cover) cover, main shaft, lower bearing, upper bearing (metal), lower T-shaped sleeve, upper T-shaped sleeve and magnet steel;
Electric machine support bosom is located at by described bearing sleeve, and described bearing sleeve and electric machine support are formed in one syndeton;
Described bearing sleeve is covered on bearing sleeve top;
Described main shaft is provided with distinguishes two thread grooves that are left-handed, dextrorotation, and the pitch of two thread grooves is equal;
Described magnet steel is located in the middle part of main shaft, be fixedly connected with between main shaft, magnet steel bottom is located at by described lower T-shaped sleeve, be fixedly connected with between main shaft, lower T-shaped lower cartridge is located at by described lower bearing, is fixedly connected with between main shaft, magnet steel top is located at by described T-shaped sleeve, be fixedly connected with between main shaft, T-shaped upper cartridge is located at by described upper bearing (metal), is fixedly connected with between main shaft;
Be fixedly connected with inside bearing sleeve outside described upper bearing (metal), be fixedly connected with inside bearing sleeve outside described lower bearing.
2. a kind of rotor assembly structure according to claim 1, is characterized in that: described bearing sleeve inner bottom is provided with spring.
3. a kind of rotor assembly structure according to claim 1, is characterized in that: for hot melt is riveted between described bearing holder (housing, cover) cover and bearing sleeve.
4. a kind of rotor assembly structure according to claim 1, is characterized in that: described thread groove groove depth 0.1mm-0.5mm.
5. a kind of rotor assembly structure according to claim 1, it is characterized in that: described thread groove pitch is 1mm-20mm, the slot cross-section of described thread groove is triangle.
6. a kind of rotor assembly structure according to claim 1, it is characterized in that: described T-shaped sleeve is upper bush extension near upper bearing (metal) side, described lower T-shaped sleeve is lower sleeve extension near lower bearing side.
7. a kind of rotor assembly structure according to claim 6, it is characterized in that: described upper bush extension diameter is less than the diameter of upper bearing (metal), described lower sleeve extension diameter is less than the diameter of lower bearing.
8. a kind of rotor assembly structure according to claim 1, it is characterized in that: described spindle material is stainless steel, described T-shaped bush material is stainless steel, and lower T-shaped bush material is stainless steel.
9. a kind of rotor assembly structure according to claim 1, is characterized in that: described electric machine support material is macromolecular material.
10. a flow generator, is characterized in that: flow generator inside is provided with rotor assembly structure as claimed in claim 1, and described electric machine support top is provided with fan, and described electric machine support bottom is provided with lower fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510719455.3A CN105186745A (en) | 2015-10-29 | 2015-10-29 | Motor rotor assembly structure and airflow generator with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510719455.3A CN105186745A (en) | 2015-10-29 | 2015-10-29 | Motor rotor assembly structure and airflow generator with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105186745A true CN105186745A (en) | 2015-12-23 |
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ID=54908656
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510719455.3A Pending CN105186745A (en) | 2015-10-29 | 2015-10-29 | Motor rotor assembly structure and airflow generator with same |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102019212504A1 (en) * | 2019-08-21 | 2021-02-25 | Vitesco Technologies GmbH | Electric compressor with a bearing sleeve |
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| CN103906929A (en) * | 2011-08-05 | 2014-07-02 | 瑞思迈发动机及马达技术股份有限公司 | Blower |
| CN205123452U (en) * | 2015-10-29 | 2016-03-30 | 泰锐菲克（天津）医疗科技有限公司 | Motor rotor assembly structure |
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| WO2008051534A2 (en) * | 2006-10-24 | 2008-05-02 | Resmed Motor Technologies Inc. | Brushless dc motor with bearings |
| CN101324238A (en) * | 2007-06-05 | 2008-12-17 | 雷斯梅德有限公司 | Blower with bearing tube |
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| DE102019212504A1 (en) * | 2019-08-21 | 2021-02-25 | Vitesco Technologies GmbH | Electric compressor with a bearing sleeve |
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Application publication date: 20151223 |
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| RJ01 | Rejection of invention patent application after publication |