CN202111600U - Electromagnetic assembly of permanent magnet motor and motor thereof - Google Patents
Electromagnetic assembly of permanent magnet motor and motor thereof Download PDFInfo
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- CN202111600U CN202111600U CN201120162008XU CN201120162008U CN202111600U CN 202111600 U CN202111600 U CN 202111600U CN 201120162008X U CN201120162008X U CN 201120162008XU CN 201120162008 U CN201120162008 U CN 201120162008U CN 202111600 U CN202111600 U CN 202111600U
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- yoke
- elementary
- permanent magnet
- motor
- driving direction
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- 230000005389 magnetism Effects 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 6
- QJVKUMXDEUEQLH-UHFFFAOYSA-N [B].[Fe].[Nd] Chemical compound [B].[Fe].[Nd] QJVKUMXDEUEQLH-UHFFFAOYSA-N 0.000 claims description 3
- 229910001172 neodymium magnet Inorganic materials 0.000 claims description 3
- 238000009826 distribution Methods 0.000 abstract description 11
- 230000004907 flux Effects 0.000 abstract description 11
- 230000002146 bilateral effect Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 6
- 230000005352 galvanomagnetic phenomena Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
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- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The utility model provides an electromagnetic assembly of a permanent magnet motor, which comprises a secondary (110), a first primary (120) and a second primary (130). A magnetic yoke portion of the secondary can rotate along the driving direction relative to the first primary and the second primary. The magnetic yoke portion of the secondary comprises a first magnetic yoke surface and a second magnetic yoke surface, and even permanent magnets are arranged on the first magnetic yoke surface and the second magnetic yoke surface along the driving direction respectively. The S polarity and the N polarity of the permanent magnets located on the same magnetic yoke surface are arranged alternately, and the S polarity and the N polarity of the permanent magnets located on different magnetic yoke surfaces are arranged oppositely along the driving direction. The first primary and the second primary are arranged at intervals along the driving direction, and the magnetic yoke portion of the secondary can be contained in the gap of the first primary and the second primary. The electromagnetic assembly of the permanent magnet motor can be applied to rotary-linear permanent magnet motors, improve unilateral magnetic force emerged when the motor is used, and adjust uniformity of magnetic flux density distribution in air gaps below pole surfaces.
Description
Technical field
The utility model relates to a kind of electromagnetic assembly, relates in particular to a kind of electromagnetic assembly that is used for permanent magnetism turning motor and permanent-magnet linear motor.The utility model also relates to permanent magnetism turning motor and the permanent-magnet linear motor that uses this electromagnetic assembly.
Background technology
Intrinsic magnetic pull between the primary and secondary of permanent magnet motor, magnetic pull is different to the influence that mechanical system produces when the different structure layout, flat plate type linear motor, magnetic pull directly acts on guide rail; Rotary-type motor, when the primary and secondary axis did not overlap, magnetic pull became the radial load of bearing, and the air gap eccentric centre between the primary and secondary occurred.In the process of using, the monolateral secondary unilateral magnetic force that causes occurring makes the amount of deflection of motor rotary shaft increase, and then influences the critical whirling speed of motor.
Figure 10 has shown the monolateral secondary Distribution of Magnetic Field of a kind of traditional permanent-magnetism linear motor.As shown in the figure, secondary for single-side structural owing to will consider the magnetic flux density at yoke 60 places, causes the gauge of yoke 60 relevant with the size and the magnetic energy product of permanent magnet 70, further attenuate.
In the permanent magnet motor, important electromagnetic parameters such as core loss and induced potential depend on magnetic flux distribution in the air gap to a great extent, can directly improve the performance of motor and the efficient of NE BY ENERGY TRANSFER through the uniformity of distribution of adjustment air gap flux density.
The utility model content
The purpose of the utility model provides a kind of electromagnetic assembly of motor, improves the unilateral magnetic force that motor occurs in using, and the uniformity of magnetic flux distribution in the air gap under the adjustment magnetic pole strength.
Another purpose of the utility model provides a kind of motor that uses the electromagnetic assembly of motor, improves the unilateral magnetic force that motor occurs in using, and the uniformity of magnetic flux distribution in the air gap under the adjustment magnetic pole strength.
The utility model provides a kind of electromagnetic assembly of motor, and this motor is a turning motor, it comprise one secondary, one first elementary and one second elementary.Secondaryly comprise a yoke portion, yoke portion can be along driving direction elementary and second elementary rotation with respect to first, and yoke portion is provided with on secondary along driving direction.Secondary yoke portion comprise one towards first elementary first yoke surfaces and one towards second elementary second yoke surfaces; First yoke surfaces and second yoke surfaces upwards are oppositely arranged in secondary axial or footpath along driving direction; First yoke surfaces and second yoke surfaces are along being respectively equipped with the even number permanent magnet on the driving direction; The N, S alternating polarity that are in the permanent magnet of same yoke surfaces arrange, and the N, S polarity that are in the permanent magnet of different yoke surfaces along driving direction secondary axially or the footpath is upwards opposite is provided with.First is elementary and second elementaryly be provided with at interval along driving direction, and secondary yoke portion can be placed in first elementary and second the gap between elementary.
The utility model also provides a kind of electromagnetic assembly of motor, and this motor is a linear motor, it comprise one secondary, one first elementary and one second elementary.Secondaryly comprise a yoke portion, yoke portion can along driving direction with respect to first elementary and second elementary the moving, and yoke portion along driving direction be arranged on secondary on.Secondary yoke portion comprise one towards first elementary first yoke surfaces and one towards second elementary second yoke surfaces; First yoke surfaces and second yoke surfaces are oppositely arranged along driving direction; First yoke surfaces and second yoke surfaces are repeated a permanent magnet along being respectively equipped with on the driving direction; The N, S alternating polarity that are in the permanent magnet of same yoke surfaces arrange, and the N, the S polarity that are in the permanent magnet of different yoke surfaces are provided with on perpendicular to the direction of driving direction on the contrary.First is elementary and second elementaryly be provided with at interval on perpendicular to the direction of driving direction, and secondary yoke portion can be placed in first elementary and second the gap between elementary.
In another schematic execution mode of the electromagnetic assembly of motor, permanent magnet is the magnetic shoe that is embedded in first yoke surface and second yoke surface, and perhaps permanent magnet is adhered to first yoke surfaces and second yoke surfaces.Permanent magnet can be the neodymium iron boron material.
In the another kind of schematically execution mode of the electromagnetic assembly of motor, first yoke surfaces and second yoke surfaces are respectively equipped with the even number permanent magnet.
The utility model also provides a kind of motor, and it comprises above-mentioned electromagnetic assembly.
Use the electromagnetic assembly and the motor thereof of motor, offset unilateral magnetic force, under permanent magnet, adopt bilateral structure to have higher air gap flux density than single-side structural with volume through the bilateral structure of motor.
Use the electromagnetic assembly and the motor thereof of motor, improved the uniformity of air gap flux density under the pole-face, and can make full use of permanent magnet, help improving motor properties, reduce cost, dwindle the volume of motor through bilateral magnetic pole cascaded structure.
Hereinafter will be with clear and definite understandable mode, and the accompanying drawings preferred embodiment further specifies the electromagnetic assembly of motor and above-mentioned characteristic, technical characterictic, advantage and the implementation thereof of motor thereof.
Description of drawings
Following accompanying drawing is only done schematic illustration and explanation to the utility model, does not limit the scope of the utility model.
Fig. 1 is the structural representation of a kind of exemplary embodiment of electromagnetic assembly of permanent magnetism turning motor.
Fig. 2 has shown secondary and its axial vertical surface texture sketch map among Fig. 1.
Fig. 3 has shown structural representation secondary among Fig. 1.
Fig. 4 is the structural representation of the another kind of exemplary embodiment of electromagnetic assembly of permanent magnetism turning motor.
Fig. 5 has shown secondary and its axial vertical surface texture sketch map shown in Figure 4.
Fig. 6 has shown structural representation secondary among Fig. 4.
Fig. 7 is the structural representation of a kind of exemplary embodiment of electromagnetic assembly of permanent-magnet linear motor.
Fig. 8 has shown the secondary Rankine-Hugoniot relations of going up permanent magnet among Fig. 8.
Fig. 9 has shown the bilateral secondary Distribution of Magnetic Field of the permanent-magnet linear motor of the utility model.
Figure 10 has shown the monolateral secondary Distribution of Magnetic Field of traditional permanent-magnetism linear motor.
Label declaration
110,210,310 levels
112,212,312 yoke portions
114,214,314 first yoke surfaces
116,216,316 second yoke surfaces
118,218,318 permanent magnets
120,220,320 first is elementary
130,230,330 second is elementary
60 yokes
70 permanent magnets.
Embodiment
Understand for technical characterictic, purpose and effect to utility model have more clearly, contrast the embodiment of description of drawings the utility model at present, identical label is represented identical part in each figure.
For making drawing succinct, only schematically shown out the part relevant among each figure with the utility model, they do not represent its practical structures as product.In addition, so that drawing succinctly is convenient to understand, in some figure, the parts with same structure or function have only schematically illustrated one of them, or have only marked one of them.
Fig. 1, Fig. 2 and Fig. 3 are the structural representations of a kind of exemplary embodiment of electromagnetic assembly of permanent magnetism turning motor, wherein cut open along secondary 110 axis and show and shown first elementary 120, second elementary 130 and secondary 110.As shown in Figure 1, the electromagnetic assembly of motor comprises secondary 110, first elementary 120 and second elementary 130.Wherein, secondary 110 comprise a yoke portion 112, referring to Fig. 2, yoke portion 112 be located on secondary 110 circumferentially, yoke portion 112 can be along the direction of arrow shown in Figure 2 with respect to first elementary 120 and second elementary 130 rotations.Show among Fig. 1 for two cross sections of yoke portion 112.Yoke portion 112 comprises first yoke surfaces 114 and second yoke surfaces 116; In execution mode shown in Figure 1; First yoke surfaces 114 and second yoke surfaces 116 are along direction of arrow setting shown in Figure 3; And as shown in Figure 2, they secondary 110 axially on be oppositely arranged, promptly first yoke surfaces 114 and second yoke surfaces 116 are respectively two axial surfaces of yoke portion 112 edges secondary 110.In execution mode shown in Figure 1; The axially spaced-apart setting on first elementary 120 and second elementary 130 edges secondary 110; Making wins exists a gap between elementary 120 and second elementary 130; Secondary 110 yoke portion 112 can be placed in this gap, makes to be between the yoke portion 112 and first elementary 120 and second elementary 130 in the gap and can to rotate owing to galvanomagnetic effect drives secondary 110.
Fig. 2 has shown secondary and its axial vertical surface texture sketch map among Fig. 1; As shown in Figure 2; First yoke surfaces of yoke portion 112 and second yoke surfaces are along secondary week upwards being respectively equipped with 40 permanent magnets 118; But the quantity that permanent magnet on the yoke surfaces can be set as required is other even numbers, and is in the N utmost point and the alternately arrangement of the S utmost point of the permanent magnet on the same yoke surfaces.
Fig. 3 has shown structural representation secondary among Fig. 1; As shown in the figure; Be in first yoke surfaces 114 of yoke portion 112 and the N utmost point and the S utmost point of the permanent magnet on second yoke surfaces 116, along secondary 110 axially upward opposite the setting, for example the polarity of one of them permanent magnet 118 of first yoke surfaces 114 is N; Then on second yoke surfaces 116, the polarity that axial and this permanent magnet 118 along secondary 110 is in the permanent magnet 118 at same position place is S.
Fig. 4, Fig. 5 and Fig. 6 are the structural representations of the another kind of exemplary embodiment of the electromagnetic assembly of permanent magnetism turning motor, wherein with Fig. 1, Fig. 2 and execution mode shown in Figure 3 in identical structure repeat no more at this.Like Fig. 4 and shown in Figure 6, first yoke surfaces 214 and second yoke surfaces 216 are along secondary 210 radially be oppositely arranged, and promptly first yoke surfaces 214 and second yoke surfaces are respectively two surfaces radially, yoke portion 212 edge secondary 210.The spaced radial setting on first elementary 220 and second elementary 230 edges secondary 210; Making wins exists a gap between elementary 220 and second elementary 230; Secondary 210 yoke portion 212 can be placed in this gap, makes to be between the yoke portion 212 and first elementary 220 and second elementary 230 in the gap and can to rotate owing to galvanomagnetic effect drives secondary 210.
Fig. 5 has shown secondary and its axial vertical surface texture sketch map shown in Fig. 4; As shown in Figure 5; First yoke surfaces 214 and second yoke surfaces 216 40 permanent magnets 218 that upwards are respectively equipped with in week along secondary 210; But the quantity that permanent magnet on the yoke surfaces can be set as required is other even numbers, and is in the N utmost point and the alternately arrangement of the S utmost point of the permanent magnet on the same yoke surfaces.
Fig. 6 has shown structural representation secondary among Fig. 5; As shown in Figure 6; Be in first yoke surfaces of yoke portion 212 and the N utmost point and the S utmost point of the permanent magnet on second yoke surfaces, the footpath along secondary 210 is upwards opposite to be provided with, and for example the polarity of one of them permanent magnet 218 of first yoke surfaces 214 is N; Then on second yoke surfaces 216, the polarity that radially is in the permanent magnet 218 at same position place with this permanent magnet 218 along secondary 210 is S.
Fig. 7 is the structural representation of a kind of exemplary embodiment of electromagnetic assembly of permanent-magnet linear motor, wherein illustrates the direction of arrow and has analysed and observe first elementary 320, second elementary 330 and secondary 310 among the figure.As shown in Figure 7, the electromagnetic assembly of linear motor comprises one first elementary 320, one second elementary 330 and one secondary 310.Secondary 310 comprise a yoke portion 312, and yoke portion 312 can move with respect to first elementary 320 and second elementary 330 along the diagram direction of arrow.Yoke portion 312 comprises that first yoke surfaces 314 and second yoke surfaces, 316, the first yoke surfaces 314 and second yoke surfaces 316 towards second elementary 330 towards first elementary 320 is oppositely arranged along the diagram direction of arrow.First elementary 320 and second elementary 330 is provided with on perpendicular to the direction of the diagram direction of arrow at interval, and secondary 310 yoke portion 312 can be placed in the slit between first elementary 320 and second elementary 330.
Fig. 8 has shown among Fig. 7 the Rankine-Hugoniot relations of secondary 310 permanent magnet.As shown in Figure 8; First yoke surfaces 314 and second yoke surfaces 316 are provided with 16 permanent magnets 318 along the diagram direction of arrow; The N, S alternating polarity that are in the permanent magnet 318 of same yoke surfaces arrange, and the N, the S polarity that are in the permanent magnet 318 of different yoke surfaces are provided with on perpendicular to the direction of the diagram direction of arrow on the contrary.Certainly, the quantity of the permanent magnet 318 that first yoke surfaces 314 and second yoke surfaces 316 are provided with can be set to other numbers as required.
Fig. 9 has schematically shown the Distribution of Magnetic Field of the secondary bilateral structure of permanent-magnet linear motor as shown in Figure 8.As shown in Figure 9; Through the secondary bilateral structure that is set to motor; Make the thickness of yoke portion 312 can be reduced to the minimum value that mechanical load allows, reduced secondary 310 movement inertia, to improve the dynamic characteristic of motor; And the thickness of permanent magnet 318 can reduce, to reach the purpose of saving material.Though Fig. 9 has schematically shown the Distribution of Magnetic Field that the permanent-magnet linear motor of the utility model is secondary, those skilled in the art can imagine that in accordinging to other execution mode of the utility model, the situation of Distribution of Magnetic Field is similar with it.
In other exemplary embodiment of electromagnetic assembly of permanent magnet motor, permanent magnet such as Fig. 1 or shown in Figure 4, for being embedded magnetic shoe in first yoke surface and second yoke surface, and with these magnetic shoes with bonding mode be fixed in secondary on; Also can be like Fig. 7 and shown in Figure 8, be the corresponding permanent magnet that directly polarizes out on secondary.
Permanent magnet at the electromagnetic assembly of permanent magnet motor can be the neodymium iron boron material, or uses the material preparation permanent magnet of other materials as required.
Bilateral structure through motor has been offset unilateral magnetic force, under the permanent magnet with volume, adopts bilateral structure to have higher air gap flux density than single-side structural.Simultaneously, improved the close uniformity of permanent magnet pole-face therapeutic method to keep the adverse qi flowing downward crack magnetic, and can make full use of permanent magnet, helped improving motor properties, improved the energy conversion efficiency of motor, reduced cost, dwindled the volume of motor through bilateral magnetic pole cascaded structure.
Use the electromagnetic assembly and the motor thereof of motor, offset unilateral magnetic force, under permanent magnet, adopt bilateral structure to have higher air gap flux density than single-side structural with volume.
Use the electromagnetic assembly and the motor thereof of motor, improved the uniformity of air gap flux density under the pole-face, make full use of permanent magnet, help improving motor properties, reduce cost, dwindle the volume of motor.
In this article; It not is strict mathematics and/or the restriction on the geometry meaning that " edge ... direction ", " being oppositely arranged ", " opposite be provided with ", " being provided with at interval " are waited, it also can comprise it will be appreciated by those skilled in the art that and manufacturing or the error that allows when using this product.
In this article, " schematically " expression " is served as instance, example or explanation ", should any diagram, the execution mode that be described to " schematically " in this article be interpreted as a kind of preferred or have more the technical scheme of advantage.
Be to be understood that; Though this specification is described according to each execution mode; But be not that each execution mode only comprises an independently technical scheme, this narrating mode of specification only is for clarity sake, and those skilled in the art should make specification as a whole; Technical scheme in each execution mode also can form other execution modes that it will be appreciated by those skilled in the art that through appropriate combination.
The listed a series of detailed description of preceding text only is specifying to the feasibility execution mode of the utility model; They are not the protection range in order to restriction the utility model, allly do not break away from equivalent execution mode or the change that the utility model skill spirit done and all should be included within the protection range of the utility model.
Claims (7)
1. the electromagnetic assembly of permanent magnet motor, said permanent magnet motor is the permanent magnetism turning motor, it comprises:
One first elementary (120,220);
One second elementary (130,230); With
One secondary (110,210), said secondary (110; 210) comprise a yoke portion (112; 212), said yoke portion (112,212) can be along driving direction with respect to the said first elementary and said second elementary rotation; And said yoke portion along said driving direction be arranged on said secondary on
Said yoke portion comprises one towards said first elementary first yoke surfaces (114; 214) and one towards said second elementary second yoke surfaces (116; 216); Said first yoke surfaces and said second yoke surfaces upwards are oppositely arranged in said secondary axial or footpath along said driving direction; Said first yoke surfaces and said second yoke surfaces are along being respectively equipped with even number permanent magnet (118,218) on the said driving direction, and the N, the S alternating polarity that are in the said permanent magnet of same said yoke surfaces are arranged; And the N, the S polarity that are in the said permanent magnet of different said yoke surfaces are provided with in said secondary axially or directly making progress along said driving direction on the contrary
The said first elementary and said second said driving direction in elementary edge is provided with at interval, and said secondary said yoke portion can be placed in said first elementary and said second the gap between elementary.
2. the electromagnetic assembly of permanent magnet motor, described motor is a permanent-magnet linear motor, it comprises:
One first elementary (320);
One second elementary (330); With
One secondary (310), the said secondary yoke portion (312) that comprises, said yoke portion can be along driving direction with respect to said first elementary and said second elementary the moving, and said yoke portion along said driving direction be arranged on said secondary on,
Said yoke portion comprise one towards said first elementary first yoke surfaces (314) and one towards said second elementary second yoke surfaces (316); Said first yoke surfaces and said second yoke surfaces are oppositely arranged along said driving direction; Said first yoke surfaces and said second yoke surfaces are repeated a permanent magnet (318) along being respectively equipped with on the said driving direction; The N, the S alternating polarity that are in the said permanent magnet of same said yoke surfaces are arranged; And the N, the S polarity that are in the said permanent magnet of different said yoke surfaces are provided with on perpendicular to the direction of said driving direction on the contrary
Said first elementary and said second elementaryly is provided with on perpendicular to the direction of said driving direction at interval, and said secondary said yoke portion can be placed in said first elementary and said second the gap between elementary.
3. according to claim 1 or claim 2 electromagnetic assembly, wherein said permanent magnet is the magnetic shoe that is embedded in said first yoke surface and said second yoke surface.
4. according to claim 1 or claim 2 electromagnetic assembly, wherein said permanent magnet is adhered to said first yoke surfaces and said second yoke surfaces.
5. according to claim 1 or claim 2 electromagnetic assembly, wherein said permanent magnet is the neodymium iron boron material.
6. according to claim 1 or claim 2 electromagnetic assembly, wherein said first yoke surfaces and said second yoke surfaces are respectively equipped with the even number magnet.
7. a motor is characterized in that it comprises like any said electromagnetic assembly of claim 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120162008XU CN202111600U (en) | 2011-05-19 | 2011-05-19 | Electromagnetic assembly of permanent magnet motor and motor thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120162008XU CN202111600U (en) | 2011-05-19 | 2011-05-19 | Electromagnetic assembly of permanent magnet motor and motor thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202111600U true CN202111600U (en) | 2012-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120162008XU Expired - Fee Related CN202111600U (en) | 2011-05-19 | 2011-05-19 | Electromagnetic assembly of permanent magnet motor and motor thereof |
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| Country | Link |
|---|---|
| CN (1) | CN202111600U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102790444A (en) * | 2011-05-19 | 2012-11-21 | 北京首科凯奇电气技术有限公司 | Electromagnetic assembly of permanent-magnet motor and motor thereof |
| CN102882336A (en) * | 2012-06-19 | 2013-01-16 | 中国商用飞机有限责任公司 | Traction system and electromagnetic actuating device suitable for traction system |
-
2011
- 2011-05-19 CN CN201120162008XU patent/CN202111600U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102790444A (en) * | 2011-05-19 | 2012-11-21 | 北京首科凯奇电气技术有限公司 | Electromagnetic assembly of permanent-magnet motor and motor thereof |
| CN102882336A (en) * | 2012-06-19 | 2013-01-16 | 中国商用飞机有限责任公司 | Traction system and electromagnetic actuating device suitable for traction system |
| CN102882336B (en) * | 2012-06-19 | 2015-01-07 | 中国商用飞机有限责任公司 | Traction system and electromagnetic actuating device suitable for traction system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120111 Termination date: 20160519 |
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| CF01 | Termination of patent right due to non-payment of annual fee |