CN203574463U - Permanent magnet motor rotor core module of surface mounted type magnetic pole - Google Patents
Permanent magnet motor rotor core module of surface mounted type magnetic pole Download PDFInfo
- Publication number
- CN203574463U CN203574463U CN201320726425.1U CN201320726425U CN203574463U CN 203574463 U CN203574463 U CN 203574463U CN 201320726425 U CN201320726425 U CN 201320726425U CN 203574463 U CN203574463 U CN 203574463U
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- permanent magnet
- rotor core
- end cap
- module
- rotor
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Abstract
The utility model relates to a permanent magnet motor rotor core module of a surface mounted type magnetic pole. Each rotor core module is provided with permanent magnets with the specified number and size. End covers are fixed at two ends of each of the permanent magnets. The internal part of each of the permanent magnets is an annular rotor core, and the external surface of the rotor core is provided with an axial groove. Baffle plates used for preventing the circumferential rotation of the permanent magnets are inserted in the grooves, and the number of the baffle plates is the same with that of the permanent magnets. The rotor cores and the permanent magnets are clamped by the two end covers through countersunk head screws 6 and screw rods 7. The permanent magnet motor rotor core module has the advantages of fast assembly speed, safety and reliability, a hollow rotor module, small moment of inertia and convenient error pole and is suitable for popularization and application.
Description
Technical field
The utility model relates to the permanent magnet machine rotor that field structure is surface-mount type, is a kind of permanent magnet machine rotor module unshakable in one's determination of surface-mount type magnetic pole specifically.
Background technology
Mentioned field structure is Surface Mount fixed form in the past, often all adopts and fastens with glue, and be wound around the protective sleeve that silk ribbon or hoop have metal material permanent magnet is outer.Or be fixed with press strip at magnetic pole gap.
Easily there is following problem in the above-mentioned measure in the past adopting:
Owing to adopting to fasten with glue, need loaded down with trivial details operation and the wait of time.Bring artificial and waste of time and the infringement healthy to workmen, and the firm degree of pasting cannot be checked.
Be wound around the swelling that silk ribbon has heating to cause, easily sweep thorax phenomenon.
Adopt metal material protective sleeve to have the problem that finishing expense is higher of offering.And need to increase motor gas-gap length and place protective sleeve.Cause the waste of motor volume.
The danger that adopts the fixed form of interpolar press strip to have press strip or trip bolt to fly out prior to permanent magnet, is not suitable for the motor of High Rotation Speed or high speed frequent starting.
And a lot of occasions require motor to have minimum moment of inertia, and then realize the ability of response fast.And the effective way that improves response speed reduces time constant, time constant consists of jointly electrical time constant and mechanical time constant.Adopt the field structure of surface-mount type to be easy to reduce electrical time constant.And for mechanical time constant, be exactly the most directly the moment of inertia that reduces rotor, measure in the past is normally offered lightening hole on the solid rotor iron core that adopts silicon steel sheet or make with permeability magnetic material.Or directly adopt the rotor core of hub-type.
Easily there is following problem in the above-mentioned measure in the past adopting:
If the solid rotor iron core that adopts silicon steel sheet to make needs the expense of the grinding tool in making circular hole or irregularly shaped hole.Adopt solid metallic rotator iron core to need to bore very dark hole or through hole, waste material.And above two kinds of modes are all solid based on rotor core substantially, if the hole of therefore offering is insufficient not greatly, DeGrain.If the lightening hole of offering is much very large, easily cause the problem of insufficient strength.
And if although the rotor core moment of inertia of employing wheel hub is very little, needs casting or welding.And because rotor core is one, if need the wrong utmost point, need to be in surface unshakable in one's determination punching or line.Cause the problem that precision is inadequate.
Summary of the invention
Goal of the invention
When being to provide a kind of simple and fast, the purpose of this utility model realizes low rotor inertia and the wrong utmost point permanent magnet machine rotor module unshakable in one's determination of surface-mount type magnetic pole easily, to address the above problem.
Technical scheme
A kind of permanent magnet machine rotor module unshakable in one's determination of surface-mount type magnetic pole, comprise permanent magnet, it is characterized in that: permanent magnet two ends are fixed with end cap, be front end housing and rear end cap, permanent magnet is inner is rotor core, rotor core outer surface has axial groove, is inserted with baffle plate in groove, and baffle plate is identical with permanent magnet quantity; Two end caps are clamped rotor core and permanent magnet by sunk screw and screw axial, and nut is fixed on screw rod on end cap.
Rotor core inside modules hollow, each rotor core module directly can connect, and one or more rotor core modules are together in series and are formed a whole rotor by axle.
The every axial two ends of permanent magnet have top rake, and each pole axis is 1 to permanent magnet quantity.
Two ends material is that the end cap of non-magnet material has the chamfering identical with the axial top rake angle of permanent magnet; Each end cap has seam; The close inner radius of each end cap has can hold nut one half thickness concavo-convex that is at least greater than a screw rod; On each end cap, have the two equally distributed holes of circle, outer ring is counterbore, and inner ring is screw, between counterbore and screw, has angle.
Rotor core is solid annular, and its material is permeability magnetic material, and its end face has equally distributed screw, and the internal diameter of rotor core coordinates with the seam external diameter of end cap.
There is chamfering at the two ends of baffle plate, and angle is identical with the top rake angle at permanent magnet two ends, and the axial length of baffle plate is identical with the axial length of permanent magnet.
The length of screw rod is greater than the overall length of each module, the gross thickness of an end cap is added the thickness sum of a nut.
When the required rotor core module number of rotor is greater than 1, each module screw rod quantity used is half of each end cap screw quantity.
Advantage and effect
The advantage of this real utility model and good effect are:
The permanent magnet machine rotor module unshakable in one's determination of this surface-mount type magnetic pole of the utility model; due to the fixed form of permanent magnet, to adopt the end cap at axial two ends to link closely fixing; therefore do not need screw to fix; do not need glue to paste; the cover that do not need protection, and every pole axis upwards only has a permanent magnet; on needn't considering axially, there are a plurality of permanent magnets, and then produce the problem of permanent magnet perk.Therefore only need to two end caps be fastened to unshakable in one's determination and permanent magnet with screw rod.
And rotor module hollow structure, not only can weight reduction, and due to the existence of end cap seam, therefore needn't consider the problem of concentricity.And there is no wheel hub or muscle, and therefore do not need to calculate the intensity of wheel hub and muscle, only need to calculate the intensity of end cap.
There is assembling speed fast, safe and reliable, rotor module hollow, moment of inertia is little, and the wrong utmost point is feature easily.
Accompanying drawing explanation
Fig. 1 is the structural representation of single rotor module;
Fig. 2 is the end view of Fig. 1;
Fig. 3 is end cap schematic diagram;
Fig. 4 is Fig. 3 end view;
Fig. 5 is ring-shaped rotor axial section unshakable in one's determination;
Fig. 6 is Fig. 5 end view;
Fig. 7 is baffle plate schematic diagram;
Fig. 8 is magnet structure schematic diagram;
Fig. 9 is Fig. 8 end view;
Figure 10 is the rotor structure schematic diagram that a plurality of modules form.
Description of reference numerals:
Front end housing, 2. iron core, 3. baffle plate, 4. permanent magnet, 5. rear end cap, 6. sunk screw, 7. screw rod, 8. nut, 9. groove, 10. axle, 11. chamferings, 12. seams, 13. concavo-convex, 14. counterbores, 15. screws, 16. top rakes,
α.deviation angle.
embodiment:
Below in conjunction with accompanying drawing, the utility model is described further:
As shown in Fig. 1-Figure 10, the utility model proposes a kind of permanent magnet machine rotor module unshakable in one's determination of surface-mount type magnetic pole, each rotor core module has the permanent magnet 4 of specified quantity and size, permanent magnet 4 two ends are fixed with end cap, be front end housing 1 and rear end cap 5, permanent magnet 4 inside are solid ring-shaped rotor iron core 2, and rotor core 2 outer surfaces offer axial groove 9, the useful baffle plate 3 to prevent that permanent magnet 4 circumferencial directions from rotating of the interior insertion of groove 9, baffle plate 3 is identical with permanent magnet 4 quantity; Two end caps (front end housing 1 and rear end cap 5) are axially clamped rotor core 2 and permanent magnet 4 by sunk screw 6 and screw rod 7, and nut 8 is fixed on screw rod 7 on end cap.
Described rotor core inside modules hollow, each rotor core module directly can connect, and one or more rotor core modules are together in series and are formed a whole rotor by axle 10.
Permanent magnet 4 is tile shape, and the every axial two ends of permanent magnet 4 have top rake 16, and each pole axis is 1 to permanent magnet quantity.
The end cap material at two ends is non-magnet material, and each end cap has the chamfering 11 identical with axial top rake 16 angles of permanent magnet 4; Each end cap has seam 12; The close inner radius of each end cap have can hold be at least greater than a screw rod nut one half thickness concavo-convex 13; On each end cap, have the two equally distributed holes of circle circumferencial direction, outer ring is counterbore 14, and inner ring is screw 15, between counterbore 14 and screw 15, has angle.The angle α of counterbore and screw can design as required, after facilitating adjacent block series connection, forms the wrong utmost point.
Rotor core 2 is solid annular, its material is permeability magnetic material, and its two axial end faces have equally distributed screw 15, and rotor core 2 outer surfaces offer the groove 9 of certain depth, in order to insert baffle plate 3, the internal diameter of rotor core 2 coordinates with the seam of end cap 12 external diameters.
As shown in Fig. 7, Fig. 8 and Fig. 9, there is chamfering at the two ends of baffle plate 3, and angle is identical with the top rake angle at permanent magnet 4 two ends, and the axial length of baffle plate 3 is identical with the axial length of permanent magnet 4.The material of baffle plate can be non-magnet material, can be also permeability magnetic material.
The length of screw rod 7 is greater than the overall length of each module, the gross thickness of an end cap is added the thickness sum of a nut.
When the required rotor core module number of rotor is greater than 1, each module screw rod quantity used is half of each end cap screw quantity
The assembling process of the rotor of single rotor module is described as depicted in figs. 1 and 2.First, rotor core 2 is enclosed within on the seam of front end housing 1, and fix front end housing 1 and rotor core 2 with sunk screw 6, then several baffle plates 3 are inserted in the groove 9 in rotor core successively, then permanent magnet 4 is inserted successively in the neutral gear on the outer surface unshakable in one's determination that every two baffle plates form, make permanent magnet with one end of top rake be inserted into end cap along under.Now, for preventing adjacent permanent magnet absorption upset, the permanent magnet of should taking measures to push down, forms cylinder as adopted nylon rope to tie up all permanent magnets.Then another end cap rear end cap 5 is covered itself and permanent magnet in the exposed one end of rotor core, rotate its angle, with several sunk screws 6, end cap and rotor core are fixed.Finally the screw rod of fixed qty 7 is screwed in, fixing with nut 8 at the other end.Finally axle is inserted in this rotor module, then is fixed in the assigned position on axle with jump ring or alternate manner, form a complete permanent magnet machine rotor.
As 3 and Fig. 4 as shown in, the material of the end cap that the utility model adopts is non-magnet material, and there is the chamfering 11 identical with the axial top rake angle of permanent magnet, and each end cap has seam 12, the close inner radius of each end cap have can hold be at least greater than a screw rod nut one half thickness concavo-convex 13.And each end cap has the two equally distributed holes of circle, and outer ring is counterbore 14, and inner ring is screw 15.And the angle α between counterbore and screw can be designed to wrong polar angle degree, after facilitating adjacent block series connection, form the wrong utmost point.
As shown in Figure 5 and Figure 6, the rotor core of annular, its available thickness can not make rotor magnetic circuit supersaturation, and the groove number of its outer surface is identical with number of poles.The screw that two end faces are offered is identical with quantity and the position of end cap counterbore.
As shown in Figure 7, baffle plate has some strength, to prevent permanent magnet circumferencial direction vibration.
As shown in figure 10, the assembling process of the rotor of a plurality of rotor module is described: first complete the step of in the assembling process of single rotor module, rear end cap not being installed, then by the rotor core assembling of the front end housing of second module and second module, then the screw of the rear end cap of the screw of the front end housing of second module and first module is aligned, then by quantity, be that half the screw rod of first module of end cap screw quantity screws in two end caps of first module and the front end housing of second module, tighten screw rod.Now can carry out the insertion of baffle plate and the permanent magnet of second module, the polarity that should note permanent magnet is corresponding with first module.And buckle rear end cap, by quantity, be finally that half second module screw rod of end cap screw quantity is screwed into the rear end cap of first module from the rear end cap of second module.Tighten.
If need again to install the 3rd module, need repetition said process, when unique difference is that screw rod finally screws in, the end cap of the 3rd module first need to be aligned with the screw that second module end covers, by quantity, be that half screw rod of end cap screw quantity screws in from rear end cap again, tighten.
Repeat successively the permanent magnet machine rotor that a plurality of modules form can be installed, as shown in figure 10.Whole process is without glue, and it is very fast to have installation rate, safe and reliable, and moment of inertia is little, and the wrong utmost point is feature easily.
Claims (8)
1. the permanent magnet machine rotor of surface-mount type magnetic pole module unshakable in one's determination, comprise permanent magnet (4), it is characterized in that: permanent magnet (4) two ends are fixed with end cap, be front end housing (1) and rear end cap (5), permanent magnet (4) is inner is rotor core (2), rotor core (2) outer surface has axial groove (9), is inserted with baffle plate (3) in groove (9), and baffle plate (3) is identical with permanent magnet (4) quantity; Two end caps are axially clamped rotor core (2) and permanent magnet (4) by sunk screw (6) and screw rod (7), and nut (8) is fixed on screw rod (7) on end cap.
2. the permanent magnet machine rotor of surface-mount type magnetic pole according to claim 1 module unshakable in one's determination, it is characterized in that: rotor core inside modules hollow, each rotor core module directly can connect, and one or more rotor core modules are together in series and are formed a whole rotor by axle (10).
3. the permanent magnet machine rotor of surface-mount type magnetic pole according to claim 1 module unshakable in one's determination, is characterized in that: every permanent magnet (4) axially has top rake (16) in two ends, and each pole axis is 1 to permanent magnet quantity.
4. the permanent magnet machine rotor of surface-mount type magnetic pole according to claim 1 module unshakable in one's determination, is characterized in that: the end cap that two ends material is non-magnet material has and permanent magnet (4) chamfering (11) that axially top rake (16) angle is identical; Each end cap has seam (12); The close inner radius of each end cap has concavo-convex (13) that can hold nut one half thickness that is at least greater than a screw rod; On each end cap, have the two equally distributed holes of circle, outer ring is counterbore (14), and inner ring is screw (15), between counterbore (14) and screw (15), has angle.
5. the permanent magnet machine rotor of surface-mount type magnetic pole according to claim 1 module unshakable in one's determination, it is characterized in that: rotor core (2) is solid annular, its end face has equally distributed screw (15), and the internal diameter of rotor core (2) coordinates with seam (12) external diameter of end cap.
6. the permanent magnet machine rotor of surface-mount type magnetic pole according to claim 1 module unshakable in one's determination, it is characterized in that: there is chamfering at the two ends of baffle plate (3), angle is identical with the top rake angle at permanent magnet (4) two ends, and the axial length of baffle plate (3) is identical with the axial length of permanent magnet (4).
7. the permanent magnet machine rotor of surface-mount type magnetic pole according to claim 1 module unshakable in one's determination, is characterized in that: the gross thickness that the length of screw rod (7) is greater than the overall length of each module, an end cap is added the thickness sum of a nut.
8. the permanent magnet machine rotor of surface-mount type magnetic pole according to claim 1 module unshakable in one's determination, is characterized in that: when the required rotor core module number of rotor is greater than 1, each module screw rod quantity used is half of each end cap screw quantity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320726425.1U CN203574463U (en) | 2013-11-18 | 2013-11-18 | Permanent magnet motor rotor core module of surface mounted type magnetic pole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320726425.1U CN203574463U (en) | 2013-11-18 | 2013-11-18 | Permanent magnet motor rotor core module of surface mounted type magnetic pole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203574463U true CN203574463U (en) | 2014-04-30 |
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ID=50542174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320726425.1U Expired - Fee Related CN203574463U (en) | 2013-11-18 | 2013-11-18 | Permanent magnet motor rotor core module of surface mounted type magnetic pole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203574463U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103580334A (en) * | 2013-11-18 | 2014-02-12 | 沈阳工业大学 | Permanent magnet motor rotor core module of surface-mounted magnetic pole |
| CN104410185A (en) * | 2014-11-05 | 2015-03-11 | 安维杰 | Integrally-molded surface-mounting type rotor structure of permanent magnet synchronous motor |
| WO2019072447A1 (en) * | 2017-10-11 | 2019-04-18 | Baumüller Nürnberg GmbH | Rotor of an electric machine |
| CN111095735A (en) * | 2018-02-09 | 2020-05-01 | 株式会社美姿把 | Brushless motor and method of manufacturing the same |
-
2013
- 2013-11-18 CN CN201320726425.1U patent/CN203574463U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103580334A (en) * | 2013-11-18 | 2014-02-12 | 沈阳工业大学 | Permanent magnet motor rotor core module of surface-mounted magnetic pole |
| CN104410185A (en) * | 2014-11-05 | 2015-03-11 | 安维杰 | Integrally-molded surface-mounting type rotor structure of permanent magnet synchronous motor |
| WO2019072447A1 (en) * | 2017-10-11 | 2019-04-18 | Baumüller Nürnberg GmbH | Rotor of an electric machine |
| US11296564B2 (en) | 2017-10-11 | 2022-04-05 | Baumueller Nuernberg Gmbh | Rotor of an electric machine |
| CN111095735A (en) * | 2018-02-09 | 2020-05-01 | 株式会社美姿把 | Brushless motor and method of manufacturing the same |
| US11251668B2 (en) | 2018-02-09 | 2022-02-15 | Mitsuba Corporation | Brushless motor and method for producing same |
| CN111095735B (en) * | 2018-02-09 | 2022-03-15 | 株式会社美姿把 | Brushless motor and method of manufacturing the same |
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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: 20140430 Termination date: 20151118 |