WO2022142318A1 - 磁悬浮轴承定子组件及具有其的磁悬浮电机 - Google Patents
磁悬浮轴承定子组件及具有其的磁悬浮电机 Download PDFInfo
- Publication number
- WO2022142318A1 WO2022142318A1 PCT/CN2021/109441 CN2021109441W WO2022142318A1 WO 2022142318 A1 WO2022142318 A1 WO 2022142318A1 CN 2021109441 W CN2021109441 W CN 2021109441W WO 2022142318 A1 WO2022142318 A1 WO 2022142318A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- iron core
- magnetic
- stator assembly
- ring
- bearing stator
- Prior art date
Links
- 239000000725 suspension Substances 0.000 title claims abstract description 36
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 77
- 239000004033 plastic Substances 0.000 claims abstract description 72
- 239000000565 sealant Substances 0.000 claims abstract description 39
- 238000007789 sealing Methods 0.000 claims abstract description 33
- 238000005339 levitation Methods 0.000 claims description 9
- 150000001875 compounds Chemical class 0.000 claims description 8
- 239000003822 epoxy resin Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- 238000000034 method Methods 0.000 description 8
- MPDDTAJMJCESGV-CTUHWIOQSA-M (3r,5r)-7-[2-(4-fluorophenyl)-5-[methyl-[(1r)-1-phenylethyl]carbamoyl]-4-propan-2-ylpyrazol-3-yl]-3,5-dihydroxyheptanoate Chemical compound C1([C@@H](C)N(C)C(=O)C2=NN(C(CC[C@@H](O)C[C@@H](O)CC([O-])=O)=C2C(C)C)C=2C=CC(F)=CC=2)=CC=CC=C1 MPDDTAJMJCESGV-CTUHWIOQSA-M 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000003292 glue Substances 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 3
- 230000035939 shock Effects 0.000 description 2
- 239000000084 colloidal system Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000008393 encapsulating agent Substances 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C32/00—Bearings not otherwise provided for
- F16C32/04—Bearings not otherwise provided for using magnetic or electric supporting means
- F16C32/0406—Magnetic bearings
- F16C32/044—Active magnetic bearings
- F16C32/0459—Details of the magnetic circuit
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C32/00—Bearings not otherwise provided for
- F16C32/04—Bearings not otherwise provided for using magnetic or electric supporting means
- F16C32/0406—Magnetic bearings
- F16C32/044—Active magnetic bearings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/08—Structural association with bearings
- H02K7/09—Structural association with bearings with magnetic bearings
Definitions
- the present application relates to the technical field of magnetic suspension bearings, and in particular, to a magnetic suspension bearing stator assembly and a magnetic suspension motor having the same.
- the magnetic suspension bearing stator assembly of the related art includes a magnetic permeable ring 1 , a fixed frame, a permanent magnet 2 , a coil 3 , a radial ring 4 and an iron core 5 .
- the position of the permanent magnet 2 is fixed by a fixing frame, and then the permanent magnet 2 is connected to the magnetic conducting ring 1 and the radial ring 4 respectively by bonding.
- the bonding may fail, causing the permanent magnet to fall off, or cause the magnetic ring to separate from the radial ring, thereby causing the motor to fail to work normally.
- the present application provides a magnetic levitation bearing stator assembly and a magnetic levitation motor having the same, so as to solve the problem that the internal parts of the stator assembly are not securely fixed.
- a magnetic suspension bearing stator assembly in one aspect of the present application, includes: a magnetically permeable ring, a permanent magnet, a radial ring and an iron core, and the magnetically permeable ring and the permanent magnet are located on one side of the radial ring,
- the iron core part is arranged in the radial ring, a plastic sealing cavity is formed between the magnetic conducting ring, the permanent magnet, the radial ring and the iron core, the middle of the iron core has an escape hole, the plastic sealing cavity is located on the outer periphery of the escape hole, and the plastic sealing cavity is filled with Plastic sealant.
- the permanent magnet is located between the magnetic conducting ring and the radial ring, and plastic sealing glue is provided between the permanent magnet and the magnetic conducting ring and between the permanent magnet and the radial ring.
- the magnetic suspension bearing stator assembly further includes: a fixing frame, the permanent magnet is arranged on the fixing frame, and the fixing frame is fixed between the magnetic conducting ring and the radial ring by plastic sealing glue.
- the fixing frame is an annular structure, and has grooves in the circumferential direction corresponding to the shape and number of the permanent magnets.
- the permanent magnet is arranged in the groove, and the plastic sealant is arranged between the permanent magnet and the fixing frame.
- a plastic sealing compound is arranged between the magnetic conducting ring and the radial ring.
- a plastic sealant is arranged between the iron core and the radial ring.
- the magnetic suspension bearing stator assembly further includes: a coil, which is arranged on the iron core, and a plastic sealant is arranged between the coil and the iron core.
- the iron core has a coil slot and a through hole, the coil is arranged in the coil slot, and the coil slot and the through hole are filled with plastic sealant.
- the iron core has a first surface and a second surface disposed opposite to each other in the axial direction, and the plastic sealant penetrates the coil slot and the through hole and is disposed on the first surface and the second surface.
- the first surface and the second surface of the iron core, as well as the coil slot and the plastic sealant in the through hole form an integral structure, and the iron core and the coil are inlaid in the plastic sealant.
- the iron core includes a plurality of iron core units, and the plurality of iron core units are arranged in the radial ring at intervals along the circumferential direction, and are arranged between two adjacent iron core units and between the iron core unit and the radial ring.
- plastic sealant With plastic sealant.
- the material of the plastic sealant is epoxy resin.
- a magnetic suspension motor in another aspect of the present application, includes the magnetic suspension bearing stator assembly provided above.
- the magnetic suspension bearing stator assembly includes a magnetic conducting ring, a permanent magnet, a radial ring and an iron core, wherein a plastic sealing cavity is arranged between the magnetic conducting ring, the permanent magnet, the radial ring and the iron core, And pour the plastic sealing compound into the plastic sealing cavity to fix the magnetic conductive ring, the permanent magnet, the radial ring and the iron core together by the plastic sealing compound, so that the related parts can be connected and fixed by the plastic sealing compound, so the setting can improve the magnetic suspension.
- the stability between the internal parts of the bearing stator assembly prolongs the service life of the motor, and the above-mentioned process has a simple structure and is easy to process.
- FIG. 1 shows a front view of a magnetic bearing stator assembly provided according to the related art.
- FIG. 2 shows a cross-sectional view along line A-A of FIG. 1 .
- FIG. 3 shows an exploded view of a magnetic suspension bearing stator assembly provided according to an embodiment of the present application.
- FIG. 4 shows a front view of a magnetic suspension bearing stator assembly provided according to an embodiment of the present application.
- FIG. 5 shows a cross-sectional view along the line B-B in FIG. 4 .
- FIG. 6 shows a cross-sectional view taken along line C-C in FIG. 4 .
- FIG. 7 shows an exploded view of a magnetic suspension bearing stator assembly provided according to yet another embodiment of the present application.
- drawings include the following reference signs: 1, magnetic conductive ring; 2, permanent magnet; 3, coil; 4, radial ring; 5, iron core; 10, magnetic conductive ring; 20, permanent magnet; 30, Radial ring; 40, iron core; 41, avoidance hole; 42, coil slot; 43, through hole; 44, iron core unit; 50, plastic sealant; 60, fixing frame; 70, coil.
- first and second are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature delimited with “first”, “second” may expressly or implicitly include at least one of that feature.
- plurality means at least two, such as two, three, etc., unless expressly and specifically defined otherwise.
- the terms “installed”, “connected”, “connected”, “fixed” and other terms should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection , or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between the two elements, unless otherwise specified limit.
- installed may be a fixed connection or a detachable connection , or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between the two elements, unless otherwise specified limit.
- a first feature "on” or “under” a second feature may be in direct contact with the first and second features, or the first and second features indirectly through an intermediary touch.
- the first feature being “above”, “over” and “above” the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is level higher than the second feature.
- the first feature being “below”, “below” and “below” the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature has a lower level than the second feature.
- an embodiment of the present application provides a magnetic suspension bearing stator assembly.
- the magnetic suspension bearing stator assembly includes a magnetically conductive ring 10 , a permanent magnet 20 , a radial ring 30 and an iron core 40 .
- the magnetic permeable ring 10 and the permanent magnets 20 are located on one side of the radial ring 30 .
- the iron core 40 is partially disposed in the radial ring 30 , and in the axial direction of the stator assembly, the iron core 40 is located on the other side of the radial ring 30 .
- the permanent magnet 20 , the magnetic conducting ring 10 , the radial ring 30 and the iron core 40 are coaxially arranged.
- a plastic sealing cavity is formed between the magnetic conducting ring 10 , the permanent magnet 20 , the radial ring 30 and the iron core 40 .
- the iron core 40 has an escape hole 41 in the middle, and the escape hole 41 is used for passing the rotor.
- the plastic sealing cavity is located at the outer periphery of the avoidance hole 41 , and the plastic sealing cavity is filled with the plastic sealing compound 50 . More specifically, the avoidance hole 41 runs through the entire stator assembly, and the plastic sealing cavity is jointly defined by the avoidance hole 41 , the magnetic conducting ring 10 , the permanent magnet 20 , the radial ring 30 and the iron core 40 .
- the magnetic suspension bearing stator assembly includes a magnetic conductive ring 10 , a permanent magnet 20 , a radial ring 30 and an iron core 40 .
- a plastic sealing cavity is arranged between the magnetic conductive ring 10 , the permanent magnet 20 , the radial ring 30 and the iron core 40 , and a plastic sealing compound 50 is poured into the plastic sealing cavity, so that the magnetic conductive ring 10 , the permanent magnet can be sealed by the plastic sealing compound 50 .
- the radial ring 30 and the iron core 40 are fixed together, so that the related components can be connected and fixed by the plastic sealant 50.
- This arrangement can improve the stability of the internal components of the stator assembly and prolong the service life of the motor. , and the above-mentioned process structure is simple and easy to process.
- the plastic sealant 50 can be made of epoxy resin material, which has insulating properties, heat resistance and corrosion resistance, and good thermal conductivity, which can improve the overall heat dissipation performance of the stator assembly while fixing the components, and ensure the normal operation of the electrodes.
- the permanent magnet 20 is located between the magnetic conducting ring 10 and the radial ring 30 . More specifically, the permanent magnets 20 are sandwiched between the magnetic conducting ring 10 and the radial ring 30 .
- a plastic sealant 50 is disposed between the permanent magnet 20 and the magnetic conducting ring 10 and between the permanent magnet 20 and the radial ring 30 . In this way, the permanent magnet 20 can be stabilized between the magnetic conducting ring 10 and the radial ring 30 .
- a fixing frame 60 can also be added to the stator assembly, and the position of the permanent magnet 20 on the magnetic conducting ring 10 and the radial ring 30 can be positioned and fixed by the fixing frame 60 .
- the permanent magnet 20 is arranged on the fixing frame 60 , and the fixing frame 60 is fixed between the magnetic conducting ring 10 and the radial ring 30 through the plastic sealing glue 50 .
- the permanent magnet 20 can be quickly positioned, so that the permanent magnet 20 , the magnetic conducting ring 10 and the radial ring 30 are coaxially arranged, and the fixing effect of the permanent magnet 20 can be strengthened, and the stability of the permanent magnet 20 can be further improved.
- the fixing frame 60 is an annular structure, and has grooves corresponding to the shape and number of the permanent magnets 20 in the circumferential direction.
- the permanent magnets 20 are arranged in the grooves to achieve positioning and fixing.
- the permanent magnet 20 and the fixing frame 60 are arranged on the same plane, that is, the positions in the axial direction of the stator assembly are the same.
- the plastic sealant ( 50 ) may be disposed between the permanent magnet 20 and the fixing frame 60 .
- a plastic sealing compound 50 is also arranged between the magnetic conductive ring 10 and the radial ring 30, so that the magnetic sealing compound 50 can be used to directly fix the magnetic conductive ring 10 and the radial ring 30, so that the two can be stabilized.
- the magnetic permeable ring 10 , the permanent magnets 20 and the radial ring 30 are formed into an integral structure by using the plastic sealant 50 .
- the fixing effect and stability thereof are better.
- a plastic sealant 50 is also disposed between the iron core 40 and the radial ring 30 .
- the iron core 40 and the radial ring 30 are fixed by the plastic sealant 50.
- the processing is convenient and the processing efficiency is higher. It is more firmly fixed with the radial ring 30 .
- the magnetic suspension bearing stator assembly further includes a coil 70 .
- the coil 70 is provided on the iron core 40 .
- a plastic sealant 50 is disposed between the coil 70 and the iron core 40 .
- the coil 70 can be fixed by providing the plastic sealant 50 .
- the plastic encapsulant 50 can fully penetrate between the wires of the coil 70, so that the air existing between the wires of the original coil is replaced with solid colloid, which can enhance the insulating ability of the coil 70 and prevent the insulating layer on the surface of the coil 70 from being struck. wear, while greatly improving the thermal conductivity and enhancing the heat dissipation capacity.
- the iron core 40 has a coil slot 42 and a through hole 43 .
- the coil 70 is disposed within the coil slot 42 .
- Filling the coil slot 42 and the through hole 43 with the plastic sealing compound 50 can plastic-encapsulate the entire stator assembly, which can further improve the fixing effect and make the internal components an integral structure.
- the iron core 40 has a first surface and a second surface disposed opposite to each other in the axial direction, and the plastic sealant 50 penetrates the coil slot 42 and the through hole 43 and is disposed on the first surface and the second surface.
- the iron core 40 and the coil 70 can be clamped by the inner and outer plastic sealants 50, so as to further improve the fixing effect.
- the first surface and the second surface of the iron core 40 and the plastic sealant 50 in the coil slot 42 and the through hole 43 form an integral structure, and the iron core 40 and the coil 70 are embedded in the plastic sealant 50 .
- the stator assembly is fixed with plastic sealant 50, which improves the overall structural strength and shock resistance, increases the reliability of the system, and enhances the electrical safety performance of the coil, enabling it to work in harsher conditions. environment; make the stator assembly as a whole, enhance the overall heat dissipation performance; reduce the number of parts and reduce the processing cost.
- the iron core 40 includes a plurality of iron core units 44 .
- a plurality of iron core units 44 are arranged in the radial ring 30 at intervals along the circumferential direction, and together constitute the iron core 40 .
- a plastic sealant 50 is provided between two adjacent iron core units 44 and between the iron core units 44 and the radial ring 30 .
- the plurality of core units 44 and the coils 70 are embedded in the plastic sealant 50 .
- the iron core 40 is fixed by the plastic sealant 50 , so that the iron core 40 can be divided into several independent iron core units 44 , and it is not necessary to make the iron core 40 into an integral structure, thus diversifying the structure of the iron core 40 .
- the iron core 40 is manufactured in blocks, and the coil 70 is wound and then installed on the radial ring 30 as a whole. After the assembly is completed, the filling of the plastic sealant is completed according to the aforementioned scheme.
- This arrangement can facilitate the realization of mechanical automatic winding; The mold opening size of the iron core is reduced, and the mold opening cost is reduced; in addition, the iron core 40 and the radial ring 30 can be assembled by using a clearance fit, which can eliminate the hot charging process and reduce the difficulty of assembly.
- a magnetic levitation motor in another embodiment provided by the present application, includes the magnetic levitation bearing stator assembly provided in the above embodiment.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
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- Iron Core Of Rotating Electric Machines (AREA)
Abstract
一种磁悬浮轴承定子组件及具有其的磁悬浮电机,磁悬浮轴承定子组件包括:导磁环(10)、永磁体(20)、径向环(30)和铁芯(40),导磁环(10)和永磁体(20)位于径向环(30)的一侧,铁芯(40)部分设置于径向环(30)内,导磁环(10)、永磁体(20)、径向环(30)和铁芯(40)之间形成有塑封腔,铁芯(40)中部具有避让孔(41),塑封腔位于避让孔(41)的外周,塑封腔内填充有塑封胶(50)。
Description
相关申请
本申请要求2020年12月28日申请的,申请号为202011589370.5,名称为“磁悬浮轴承定子组件及具有其的磁悬浮电机”的中国专利申请的优先权,在此将其全文引入作为参考。
本申请涉及磁悬浮轴承技术领域,特别涉及一种磁悬浮轴承定子组件及具有其的磁悬浮电机。
如图1和图2所示,相关技术的磁悬浮轴承定子组件包括导磁环1、固定架、永磁体2、线圈3、径向环4以及铁芯5。在安装时,利用固定架固定永磁体2的位置,然后通过粘接将永磁体2分别与导磁环1、径向环4连接。在使用过程中,当电机处于冲击、震动等恶劣工作环境时可能会使粘接失效,导致永磁体脱落,或者导致导磁环与径向环发生分离,进而导致电机不能正常工作。
发明内容
本申请提供一种磁悬浮轴承定子组件及具有其的磁悬浮电机,以解决定子组件内部零件固定不牢靠的问题。
在本申请的一方面,提供了一种磁悬浮轴承定子组件,磁悬浮轴承定子组件包括:导磁环、永磁体、径向环和铁芯,导磁环和永磁***于径向环的一侧,铁芯部分设置于径向环内,导磁环、永磁体、径向环和铁芯之间形成有塑封腔,铁芯中部具有避让孔,塑封腔位于避让孔的外周,塑封腔内填充有塑封胶。
可选地,永磁***于导磁环和径向环之间,永磁体与导磁环之间、永磁体与径向环之间均设置有塑封胶。
可选地,磁悬浮轴承定子组件还包括:固定架,永磁体设置在固定架上,固定架通过塑封胶固定在导磁环和径向环之间。
可选地,所述固定架为环状结构,周向上具有形状和数量与所述永磁体对应的凹槽。所述永磁体设置在所述凹槽中,所述永磁体和所述固定架之间设置有所述塑封胶。
可选地,导磁环和径向环之间设置有塑封胶。
可选地,铁芯与径向环之间设置有塑封胶。
可选地,磁悬浮轴承定子组件还包括:线圈,设置在铁芯上,线圈与铁芯之间设置有塑封胶。
可选地,铁芯具有线圈槽和通孔,所述线圈设置在所述线圈槽内,线圈槽和通孔内填充有塑封胶。
可选地,铁芯具有轴向上相对设置的第一表面和第二表面,塑封胶贯穿线圈槽和通孔设置在第一表面和第二表面上。
可选地,所述铁芯的所述第一表面和所述第二表面,以及所述线圈槽和所述通孔中的所述塑封胶形成一体结构,所述铁芯和所述线圈镶嵌在所述塑封胶中。
可选地,铁芯包括多个铁芯单元,多个铁芯单元沿周向间隔设置在径向环内,相邻两个铁芯单元之间、铁芯单元与径向环之间均设置有塑封胶。
可选地,所述塑封胶的材料为环氧树脂。
在本申请的另一方面,提供了一种磁悬浮电机,该磁悬浮电机包括上述提供的磁悬浮轴承定子组件。
应用本申请的技术方案,该磁悬浮轴承定子组件包括导磁环、永磁体、径向环和铁芯,其中,在导磁环、永磁体、径向环和铁芯之间设置有塑封腔,并在塑封腔内灌注塑封胶,以通过塑封胶将导磁环、永磁体、径向环和铁芯固定在一起,使得相关部件之间均能够通过塑封胶进行连接固定,如此设置能够提高磁悬浮轴承定子组件内部零部件之间的稳固性,延长了电机的使用寿命,且上述工艺结构简单,便于加工。
为了更清楚地说明本公开实施例中的技术方案,下面将对实施例描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本公开的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。
图1示出了根据相关技术提供的磁悬浮轴承定子组件的主视图。
图2示出了图1中沿A-A线的剖视图。
图3示出了根据本申请实施例提供的磁悬浮轴承定子组件的***图。
图4示出了根据本申请实施例提供的磁悬浮轴承定子组件的主视图。
图5示出了图4中沿B-B线的剖视图。
图6示出了图4中沿C-C线的剖视图。
图7示出了根据本申请又一实施例提供的磁悬浮轴承定子组件的***图。
其中,上述附图包括以下附图标记:1、导磁环;2、永磁体;3、线圈;4、径向环;5、铁芯;10、导磁环;20、永磁体;30、径向环;40、铁芯;41、避让孔;42、线圈槽;43、通孔;44、铁芯单元;50、塑封胶;60、固定架;70、线圈。
为使本公开的上述目的、特征和优点能够更加明显易懂,下面结合附图对本公开的具体实施方式做详细的说明。在下面的描述中阐述了很多具体细节以便于充分理解本公开。但是本公开能够以很多不同于在此描述的其它方式来实施,本领域技术人员可以在不违背本公开内涵的情况下做类似改进,因此本公开不受下面公开的具体实施例的限制。
除非另有定义,本文所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同。本文中在本申请的说明书中所使用的术语只是为了描述具体的实施例的目的,不是旨在于限制本申请。本文所使用的术语“及/或”包括一个或多个相关的所列项目的任意的和所有的组合。
在本申请的描述中,需要理解的是,术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“顺时针”、“逆时针”、“轴向”、“径向”、“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系,仅是为了便于描述本申请和简化描述,而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作,因此不能理解为对本申请的限制。
此外,术语“第一”、“第二”仅用于描述目的,而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此,限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。在本申请的描述中,“多个”的含义是至少两个,例如两个,三个等,除非另有明确具体的限定。
在本申请中,除非另有明确的规定和限定,术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解,例如,可以是固定连接,也可以是可拆卸连接,或成一体;可以是机械连接,也可以是电连接;可以是直接相连,也可以通过中间媒介间接相连,可以是两个元件内部的连通或两个元件的相互作用关系,除非另有明确的限定。对于本领域的普通技术人员而言,可以根据具体情况理解上述术语在本申请中的具体含义。
在本申请中,除非另有明确的规定和限定,第一特征在第二特征“上”或“下”可以是第一和第二特征直接接触,或第一和第二特征通过中间媒介间接接触。而且,第一特征在第二特征“之上”、“上方”和“上面”可是第一特征在第二特征正上方或斜上方,或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”可以是第一特征在第二特征正下方或斜下方,或仅仅表示第一特征水平高度小于第二特征。
需要说明的是,当元件被称为“固定于”或“设置于”另一个元件,它可以直接在另一个元件上或者也可以存在居中的元件。当一个元件被认为是“连接”另一个元件,它可以是直接连接到另一个元件或者可能同时存在居中元件。本文所使用的术语“垂直的”、“水平的”、“上”、“下”、“左”、“右”以及类似的表述只是为了说明的目的,并不表示是唯一的实施方式。
此外,附图并不是1:1的比例绘制,并且各元件的相对尺寸在附图中仅以示例地绘制,而不一定按照真实比例绘制。
如图3至图6所示,本申请实施例提供了一种磁悬浮轴承定子组件,该磁悬浮轴承定子组件包括:导磁环10、永磁体20、径向环30和铁芯40。在定子组件的轴向上,导磁环10和永磁体20位于径向环30的一侧。铁芯40部分设置于径向环30内,且在定子组件的轴向上,铁芯40位于径向环30的另一侧。永磁体20、导磁环10、径向环30和铁芯40同轴设置。导磁环10、永磁体20、径向环30和铁芯40之间形成有塑封腔。铁芯40中部具有避让孔41,该避让孔41用于穿设转子。塑封腔位于避让孔41的外周,塑封腔内填充有塑封胶50。更具体的,避让孔41贯穿整个定子组件,塑封腔由避让孔41、导磁环10、永磁体20、径向环30和铁芯40共同限定。通过上述结构,利用塑封胶50可以对定子组件的各个部件起到良好的固定作用,加强了各个部件之间的连接,避免在使用过程中出现晃动或连接失效的情况发生。
通过本申请提供的技术方案,该磁悬浮轴承定子组件包括导磁环10、永磁体20、径向环30和铁芯40。其中,导磁环10、永磁体20、径向环30和铁芯40之间设置有塑封腔,并在塑封腔内灌注塑封胶50,这样可以通过塑封胶50将导磁环10、永磁体20、径向环30和铁芯40固定在一起,使得相关部件之间均能够通过塑封胶50进行连接固定,如此设置能够提高定子组件内部零部件之间的稳固性,延长了电机的使用寿命,且上述工艺结构简单,便于加工。
塑封胶50可采用环氧树脂材料制成,其具有绝缘性能,且耐热耐腐、导热性能良好,能够在固定部件的同时提高定子组件整体的散热性能,保证电极的正常运行。
具体的,在定子组件的轴向上,永磁体20位于导磁环10和径向环30之间。更具体的,永磁体20夹持在导磁环10和径向环30之间。在一实施例中,永磁体20与导磁环10之间、永磁体20与径向环30之间均设置有塑封胶50。这样能够使永磁体20稳固在导磁环10和径向环30之间。通过上述固定方式,可以省去相关设计中增加固定架对永磁体20进行固定,在固定永磁体的同时起到简化结构的作用。
当然,在定子组件中也可增设固定架60,通过固定架60定位和固定永磁体20在导磁环10和径向环30上的位置。具体的,将永磁体20设置在固定架60上,并将固定架60通过塑封胶50固定在导磁环10和径向环30之间。如此可以对永磁体20快速定位,使永磁体20、导磁环10和径向环30同轴设置,并且,能够加强对永磁体20的固定作用,进一步提高永磁体20的稳定性。在一实施例中,固定架60为环状结构,周向上具有形状和数量与永磁体20对应的凹槽。永磁体20设置在凹槽中,从而实现定位和固定。永磁体20和固定架60设置在同一平面,即在定子组件的轴向上的位置相同。永磁体20和固定架60之间可设置有所述塑封胶(50)。
在一实施例中,在导磁环10和径向环30之间也设置有塑封胶50,这样可以利用塑封胶50对导磁环10和径向环30直接进行固定,使二者能够稳固在一起,使导磁环10、永磁体20和径向环30利用塑封胶50形成整体结构。相比于相关技术中导磁环10和径向环30只通过永磁体20粘接在一起的方式,其固定效果和稳定性更好。
在一实施例中,铁芯40与径向环30之间也设置有塑封胶50。通过塑封胶50对铁芯40与径向环30进行固定,相比于相关设计中铁芯40与径向环30通过过盈配合的固定方式,其方便加工,加工效率更高,铁芯40与径向环30固定更加牢固。
可选的,该磁悬浮轴承定子组件还包括线圈70。线圈70设置在铁芯40上。线圈70与铁芯40之间设置有塑封胶50。通过设置塑封胶50可以对线圈70起到固定作用。并且,可以使塑封胶50充分渗入线圈70的导线之间,使原有线圈的导线之间存在的空气替换为固态胶体,这样能够增强线圈70的绝缘能力,防止线圈70表面的绝缘层被击穿,同时大大提高了导热性能,增强了散热能力。
在一实施例中,铁芯40具有线圈槽42和通孔43。线圈70设置在线圈槽42内。在线圈槽42和通孔43内填充塑封胶50,能够对定子组件整体进行塑封,能够进一步提高固定效果,使内部各零部件成为一个整体结构。
图5和图6分别示出了在线圈槽42处的剖视图和在通孔43处的剖视图。在本实施例中,铁芯40具有轴向上相对设置第一表面和第二表面,塑封胶50贯穿线圈槽42和通孔 43,设置在第一表面和第二表面上。如此设置,可以通过内外的塑封胶50卡住铁芯40和线圈70,以进一步提高固定效果。所述铁芯40的第一表面和第二表面,以及线圈槽42和通孔43中的塑封胶50形成一体结构,所述铁芯40和线圈70镶嵌在所述塑封胶50中。
通过本申请提供的技术方案,在定子组件内部利用塑封胶50进行固定,其提高了整体结构强度及抗震性,增加了***可靠性;增强了线圈电气安全性能,使之能工作在更恶劣的环境中;使定子组件成为一个整体,增强了整体散热性能;减少了零件数目,降低了加工成本。
在本申请提供的另一实施例中,如图7所示,该铁芯40包括多个铁芯单元44。多个铁芯单元44沿周向间隔设置在径向环30内,共同组成铁芯40。相邻两个铁芯单元44之间、铁芯单元44与径向环30之间均设置有塑封胶50。所述多个铁芯单元44和线圈70镶嵌在所述塑封胶50中。通过塑封胶50对铁芯40进行固定,这样可以将铁芯40分成几个独立的铁芯单元44,无需将铁芯40制成一个整体结构,使铁芯40结构多样化。在本实施例中,将铁芯40分块制造,绕制线圈70后再整体安装在径向环30上,装配完成后按前述方案完成塑封胶填充,如此设置能够方便实现机械自动绕线;降低铁芯开模尺寸,降低开模费用;并且,铁芯40和径向环30可用采用间隙配合进行装配,可免去热装工艺,降低装配难度。
在本申请提供的另一实施例中,提供了一种磁悬浮电机,该磁悬浮电机包括上述实施例提供的磁悬浮轴承定子组件。
以上所述实施例的各技术特征可以进行任意的组合,为使描述简洁,未对上述实施例中的各个技术特征所有可能的组合都进行描述,然而,只要这些技术特征的组合不存在矛盾,都应当认为是本说明书记载的范围。
以上所述实施例仅表达了本申请的几种实施方式,其描述较为具体和详细,但并不能因此而理解为对申请专利范围的限制。应当指出的是,对于本领域的普通技术人员来说,在不脱离本申请构思的前提下,还可以做出若干变形和改进,这些都属于本申请的保护范围。因此,本申请专利的保护范围应以所附权利要求为准。
Claims (13)
- 一种磁悬浮轴承定子组件,其特征在于,所述磁悬浮轴承定子组件包括:导磁环(10)、永磁体(20)、径向环(30)和铁芯(40),所述导磁环(10)和永磁体(20)位于所述径向环(30)的一侧,所述铁芯(40)部分设置于所述径向环(30)内,所述导磁环(10)、所述永磁体(20)、所述径向环(30)和所述铁芯(40)之间形成有塑封腔,所述铁芯(40)中部具有避让孔(41),所述塑封腔位于所述避让孔(41)的外周,所述塑封腔内填充有塑封胶(50)。
- 根据权利要求1所述的磁悬浮轴承定子组件,其特征在于,所述永磁体(20)位于所述导磁环(10)和所述径向环(30)之间,所述永磁体(20)与所述导磁环(10)之间、所述永磁体(20)与所述径向环(30)之间均设置有所述塑封胶(50)。
- 根据权利要求1所述的磁悬浮轴承定子组件,其特征在于,还包括:固定架(60),所述永磁体(20)设置在所述固定架(60)上,所述固定架(60)通过所述塑封胶(50)固定在所述导磁环(10)和所述径向环(30)之间。
- 根据权利要求3所述的磁悬浮轴承定子组件,其特征在于,所述固定架(60)为环状结构,周向上具有形状和数量与所述永磁体(20)对应的凹槽。所述永磁体(20)设置在所述凹槽中,所述永磁体(20)和所述固定架(60)之间设置有所述塑封胶(50)。
- 根据权利要求1所述的磁悬浮轴承定子组件,其特征在于,所述导磁环(10)和所述径向环(30)之间设置有所述塑封胶(50)。
- 根据权利要求1所述的磁悬浮轴承定子组件,其特征在于,所述铁芯(40)与所述径向环(30)之间设置有所述塑封胶(50)。
- 根据权利要求1所述的磁悬浮轴承定子组件,其特征在于,还包括:线圈(70),设置在所述铁芯(40)上,所述线圈(70)与所述铁芯(40)之间设置有所述塑封胶(50)。
- 根据权利要求1所述的磁悬浮轴承定子组件,其特征在于,所述铁芯(40)具有线圈槽(42)和通孔(43),所述线圈(70)设置在所述线圈槽(42)内,所述线圈槽(42)和所述通孔(43)内填充有所述塑封胶(50)。
- 根据权利要求8所述的磁悬浮轴承定子组件,其特征在于,所述铁芯(40)具有轴向上相对设置的第一表面和第二表面,所述塑封胶(50)贯穿所述线圈槽(42)和所述通孔(43)设置在所述第一表面和所述第二表面上。
- 根据权利要求9所述的磁悬浮轴承定子组件,其特征在于,所述铁芯(40)的所 述第一表面和所述第二表面,以及所述线圈槽(42)和所述通孔(43)中的所述塑封胶(50)形成一体结构,所述铁芯(40)和所述线圈(70)镶嵌在所述塑封胶(50)中。
- 根据权利要求1所述的磁悬浮轴承定子组件,其特征在于,所述铁芯(40)包括多个铁芯单元(44),多个所述铁芯单元(44)沿周向间隔设置在所述径向环(30)内,相邻两个所述铁芯单元(44)之间、所述铁芯单元(44)与所述径向环(30)之间均设置有所述塑封胶(50)。
- 根据权利要求1至11中任一项所述的磁悬浮轴承定子组件,其特征在于,所述塑封胶(50)的材料为环氧树脂。
- 一种磁悬浮电机,其特征在于,所述磁悬浮电机包括权利要求1至12中任一项所述的磁悬浮轴承定子组件。
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CN207500339U (zh) * | 2017-10-20 | 2018-06-15 | 珠海格力节能环保制冷技术研究中心有限公司 | 磁悬浮轴承定子组件封胶工装和磁悬浮轴承 |
CN108343671A (zh) * | 2018-02-07 | 2018-07-31 | 苏州麦格奈迪磁悬浮技术有限公司 | 一种磁轴承组件制备工艺 |
CN112648290A (zh) * | 2020-12-28 | 2021-04-13 | 珠海格力电器股份有限公司 | 磁悬浮轴承定子组件及具有其的磁悬浮电机 |
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