CN205051467U - Electric motor rotor and have its motor - Google Patents
Electric motor rotor and have its motor Download PDFInfo
- Publication number
- CN205051467U CN205051467U CN201520838858.5U CN201520838858U CN205051467U CN 205051467 U CN205051467 U CN 205051467U CN 201520838858 U CN201520838858 U CN 201520838858U CN 205051467 U CN205051467 U CN 205051467U
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- Prior art keywords
- rotor
- magnet
- punching
- magnetism
- iron core
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- Permanent Field Magnets Of Synchronous Machinery (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The utility model discloses a motor rotor, its including have the magnet groove rotor core, install in magnet in the magnet groove and with rotor core is connected separates the magnetic ring, wherein, rotor core includes that a plurality of iron cores piece together the piece, and each iron core is pieced together the piece and is connected to all alone separate the magnetic ring, adjacent iron core is pieced together the piece and is formed jointly at a distance from the magnetic ring the magnet groove. The utility model discloses an electric motor rotor through changing motor structure or rotor assembly methods, has reduced the rotor leakage under the prerequisite that motor material cost does not increase, realized the rotor high efficiency, has promoted the electric efficiency. The utility model also discloses the motor.
Description
Technical field
The utility model relates to technical field of motors, is specifically related to a kind of rotor.The utility model also relates to a kind of motor.
Background technology
The major advantage of tangential motor (permagnetic synchronous motor of tangential structure) is, the magnetic flux under a pole span is provided by adjacent two magnetic pole parallels, and the permagnetic synchronous motor compared to radial structure can obtain larger every pole magnetic flux.But tangential motor also has the larger shortcoming of magnetic leakage factor, thus need to adopt accordingly every magnetic measure.
Traditional tangential motor every magnetic mode as illustrated in fig. 1 and 2.Such as, for the structure of Fig. 1, its rotor forms primarily of rotor core 101 (being such as overrided to form by rotor punching), magnet (such as magnet steel) 102, magnetism-isolating loop (or being called magnetic shield) 103 and armature spindle etc., wherein, magnet 102 is arranged in magnet slot with interference; In the manner, axle portion mainly realizes by magnetism-isolating loop 103 every magnetic.Again such as, for the structure of Fig. 2, its rotor forms primarily of rotor core 201 (being such as overrided to form by rotor punching), magnet (such as magnet steel) 202 and armature spindle etc., and wherein, magnet 202 is arranged in magnet slot with interference; In the manner, mainly leaning on every magnetic of axle portion realizes every bore 203.
But, due to the restriction by rotor strength, structure etc., still can there is leakage field at local location in said structure, (in figure, schematically indicate leakage field position with the form of the magnetic line of force) such as shown in Figures 3 and 4, local leakage field is there is respectively at the radial outside position of magnet and radially inner side position, cause local magnetic close saturated, increase iron loss; Further, the useful flux area of magnet can reduce, and causes motor performance to decline.
Utility model content
Based on above-mentioned present situation, main purpose of the present utility model is to provide a kind of rotor, and it effectively can reduce local leakage field.
Above-mentioned purpose is achieved through the following technical solutions:
A kind of rotor, it comprises the rotor core with magnet slot, the magnetism-isolating loop being installed on the magnet in described magnet slot and being connected with described rotor core, wherein, described rotor core comprises multiple iron core piece, each iron core piece is connected to described magnetism-isolating loop individually, and adjacent iron core piece and magnetism-isolating loop form described magnet slot jointly.
Preferably, the outer peripheral face of described magnetism-isolating loop is provided with the limit mounting groove extended vertically, and the installation side of described iron core piece has the limit mounting structure coordinated with described limit mounting groove shape.
Preferably, described limit mounting groove comprises dovetail groove and/or T-slot, and described limit mounting structure comprises corresponding dovetail configuration and/or T-shaped structure.
Preferably, described iron core piece comprises stacked multiple rotor punchings.
Preferably, described magnetism-isolating loop is made up of non-magnetic metal material or nonmetallic materials.
A kind of rotor, it comprises the rotor core with magnet slot and the magnet be installed in described magnet slot, it is characterized in that, described rotor core is alternately laminated by the first rotor punching and the second rotor punching and is formed, and wherein said second rotor punching lacks at the radially inner side position of described magnet slot and/or radial outside position at least in part compared to described the first rotor punching.
Preferably, described the first rotor punching is unitary rotor punching, and described second rotor punching corresponds to the part in described the first rotor punching between adjacent magnet slot in shape and size.
Preferably, described the first rotor punching connects into entirety by the hub portion of radially inner side.
Preferably, described the first rotor punching connects into entirety by the bridge portion of radial outside.
Preferably, described rotor also comprises the magnetism-isolating loop be connected with described rotor core.
The object of another aspect of the present utility model is to provide a kind of motor, and it comprises foregoing rotor.
Under the prerequisite that rotor of the present utility model does not increase at motor material cost, by changing electric machine structure or rotor assembling mode, especially by adopting the rotor of fraction block structure or the mode by adopting different rotor punching structures alternately to laminate, add air gap, decrease rotor leakage, achieve rotor high efficiency, improve electric efficiency.
Accompanying drawing explanation
Be described according to the rotor of preferred implementation of the present utility model and motor hereinafter with reference to accompanying drawing.In figure:
Fig. 1 and 2 is the end view of the rotor of the tangential structure of prior art;
Fig. 3 and 4 schematically illustrates the leakage field position, local of the rotor of Fig. 1 and 2 respectively with the form of partial enlargement;
Fig. 5 is the end view of the rotor of a preferred implementation of the present utility model;
Fig. 6 is the end view of the rotor of another preferred implementation of the present utility model;
Fig. 7 is the perspective schematic view of the iron core piece of the rotor of Fig. 5;
Fig. 8 is the perspective schematic view of the magnetism-isolating loop of the rotor of Fig. 5;
Fig. 9 is the schematic diagram of the rotor punching of the rotor of another preferred implementation of the present utility model, and wherein, (a) is the first rotor punching, and (b) is the second rotor punching; And
Figure 10 is the schematic diagram of the rotor punching of the rotor of another preferred implementation again of the present utility model, and wherein, (a) is the first rotor punching, and (b) is the second rotor punching.
Embodiment
For the problem of the local leakage field of the tangential rotor of prior art, the utility model improves the structure of rotor, so as do not increase motor material cost, do not weaken rotor strength prerequisite under, reduce rotor leakage, realize rotor high efficiency, and then the efficiency of lifting motor.
Particularly, as illustrated in Figures 5 and 6, the rotor of a kind of preferred implementation of the present utility model, the such as rotor of tangential structure, it comprises the rotor core 1 with magnet slot, the magnetism-isolating loop (or claiming magnetic shield) 3 being installed on the magnet (such as magnet steel) 2 in (such as installing with interference) described magnet slot and being connected with described rotor core 1, wherein, described rotor core 1 comprises multiple iron core piece 4, each iron core piece 4 is connected to described magnetism-isolating loop 3 individually, and adjacent iron core piece 4 forms described magnet slot jointly with magnetism-isolating loop 3.
Such as, magnet 2 is alternately installed in the magnet slot of rotor according to N/S, and the total after installation is assembled with armature spindle (not shown) again.
Preferably, magnet steel of the present utility model adopts square or rectangular configuration.Accordingly, the cross sectional shape of magnet slot is square or rectangle, and preferred each magnet slot is radially arranged along the circumference of rotor, and also, when seeing along the axis of rotor, each magnet slot extends along the radial direction of rotor.
Because rotor core is spliced by multiple iron core piece, and each magnet slot has just been formed after iron core piece has spliced, and thus, the radial outside of magnet slot is unlimited.This unenclosed construction makes each magnet steel radial outside there is air gap, and the both sides of air gap cannot form closed magnetic circuit by iron core, and air reluctance is comparatively large, thus avoids or reduce the phenomenon of local leakage field as shown in Figure 3.
Meanwhile, the structure that multiple iron core piece is connected separately with magnetism-isolating loop, compared to the structure of the prior art shown in Fig. 1, more easily ensures the bulk strength of fastness and the rotor core combined.
Again, compared with the structure of the prior art shown in Fig. 2, the magnet slot radial outside of the rotor of said structure of the present utility model be equally unlimited (in this, the two preferably can be identical), but owing to have employed magnetism-isolating loop, its axle portion every magnetic successful be better than shown in Fig. 2 every bore.Therefore, rotor of the present utility model also avoid the problem of local leakage field as shown in Figure 4.
Radial outside due to magnet slot is unlimited, in order to limit magnet radially moves (such as under centrifugal action), the radial outside of iron core piece 4 preferably has protruding stop configurations 43 on the direction towards circumferential both sides, thus when two iron core pieces form magnet slot, described stop configurations 43 stops magnet outwards movement at the radial outside of magnet slot.
Preferably, as shown in FIG. 7 and 8, in order to each iron core piece 4 is mounted to magnetism-isolating loop 3 easily, the outer peripheral face of described magnetism-isolating loop 3 is provided with the limit mounting groove 32 extended vertically, and the installation side (i.e. radially inner side) of described iron core piece 4 then has the limit mounting structure 42 with described limit mounting groove 32 form fit.Aforementioned limit mounting structure 42 preferably with aforementioned limit mounting groove 32 interference fit, thus after installing, no longer can need other fastener.
Preferably, described limit mounting groove 32 comprises dovetail groove and/or T-slot, and described limit mounting structure 42 comprises corresponding dovetail configuration and/or T-shaped structure.Such as, in the embodiment of Fig. 5, the installation side of each iron core piece 4 all has dovetail configuration (specifically as shown in Figure 7), accordingly, the outer peripheral face of magnetism-isolating loop 3 is provided with dovetail groove (specifically as shown in Figure 8), described dovetail configuration such as with described dovetail groove interference fit.Again such as, in the embodiment of Fig. 6, the installation side of each iron core piece 4 all has T-shaped structure, and accordingly, the outer peripheral face of magnetism-isolating loop 3 is provided with T-slot, described T-shaped structure example as with as described in T-slot interference fit.Certainly, also can have T-slot and dovetail groove in same rotor simultaneously, thus the iron core piece of band T-shaped structure and the iron core piece of band dovetail configuration are correspondingly installed simultaneously.In addition, the cooperation place between iron core piece and magnetism-isolating loop also can adopt and can limit iron core piece on magnetism-isolating loop circumferentially and/or other structure moved radially.
Preferably, the iron core piece 4 described in the utility model comprises stacked multiple rotor punchings 41.Such as, the rotor punching 41 that each iron core piece 4 can utilize mould punching to go out, by being overrided to form, is fixed by rotor button point between each rotor punching 41, forms independently iron core piece unit thus.
Preferably, described magnetism-isolating loop 3 is made up of non-magnetic metal material (such as stainless steel, aluminium etc.) or nonmetallic materials (such as polyester material etc.).Such as, metal material can be utilized to adopt the processing mode such as machine work or die casting to manufacture, nonmetallic materials also can be utilized to adopt the mode of 3D printing or injection moulding to obtain.
Based on above by the inventive concept arranging air gap and reduce leakage field, of the present utility modelly additionally provide another rotor, it comprises the rotor core with magnet slot and the magnet be installed in described magnet slot, wherein, preferably as shown in Figures 9 and 10, described rotor core is alternately laminated by the first rotor punching 11,21 and second rotor punching 12,22 and is formed, wherein, the second rotor punching 12,22 lacks at the radially inner side position of described magnet slot and/or radial outside position at least in part compared to the first rotor punching 11,21.
In this programme, because the second rotor punching has lack part at the radially inner side position of magnet slot and/or radial outside position, these lack part are just naturally formed as air gap, and this partial air air gap instead of corresponding core portion, just can bring the minimizing of leakage field.Therefore, this structure also can reduce interelectrode magnetic leakage greatly, realizes rotor high efficiency.
On the other hand, because the first rotor punching alternately existed exists entity part at this partial air air gap place, thus for the reliable location of magnet and structural strength substantially unaffected.
Preferably, the first rotor punching 11,21 is unitary rotor punching, and the second rotor punching 12,22 to correspond in the first rotor punching 11,21 parts between adjacent magnet slot in shape and size.
Because the second rotor punching only corresponds to the part in the first rotor punching between adjacent magnet slot, and do not comprise the part corresponding with the radially inner side of magnet slot or radial outside, therefore, after second rotor punching split together, its area and/or volume are still less than area and/or the volume of the first rotor punching, inevitably produce air gap thus.Such as in the scheme of Fig. 9, the punching volume of disappearance is alternately there is in rotor hub position, in the scheme of Figure 10, the punching volume of disappearance is alternately there is in the radial outside position of magnet slot, the punching volume of these disappearances just forms air gap, and this part air gap replaces iron core and leakage field can be caused to reduce.
Rotor core utilizes mould punching two kinds of rotor punchings out alternately to carry out laminating making, such as, one or more layers second rotor punching stacked in one or more layers the first rotor punching also goes round and begins again, every layer of second rotor punching then comprises multiple second rotor punching (because each second rotor punching only corresponds to a fragment of the first rotor punching), after having laminated, magnet alternately loads in magnet slot by N/S again, and the structure after assembling is assembled with armature spindle again.
Preferably, as shown in Figure 9, the first rotor punching 11 connects into entirety by the hub portion 13 of radially inner side, and hub portion 13 is for coordinating with armature spindle.Do not adopt magnetism-isolating loop in this scheme, the radially inner side position of magnet slot is provided with every bore.Meanwhile, in this scheme, the radial outside of magnet slot opens wide, and the radial outside place of magnet slot is provided with stop configurations 14 and the radial outside place of the second rotor punching is provided with stop configurations 15, radially moves with limit magnet.
Alternatively, as shown in Figure 10, the first rotor punching 21 connects into entirety by the bridge portion 24 of radial outside.In addition, the effect preventing magnet radially movement is also played in this bridge portion 24.In addition, the radial outside of the second rotor punching 22 is also provided with stop configurations 25, its equally to prevent magnet radially movement work.
Preferably, in the embodiment of Figure 10, rotor can also comprise the magnetism-isolating loop (not shown) be connected with described rotor core, with realize radially inner side (i.e. axle portion) every magnetic.Such as, magnetism-isolating loop with laminate the rotor core interference fit made, afterwards, armature spindle coordinates with magnetism-isolating loop again.
It is contemplated that each rotor punching of each rotor punching of Fig. 9 and Figure 10 also can simultaneously and be stored in a rotor core, to improve the intensity of rotor.
Another aspect of the present utility model additionally provides a kind of motor, and it comprises the foregoing rotor of the utility model.Such as, this motor is the permagnetic synchronous motor of tangential structure.Motor of the present utility model owing to adopting the aforesaid rotor that can reduce local leakage field, thus can obtain the lifting of efficiency.
Those skilled in the art will readily understand, under the prerequisite of not conflicting, above-mentioned each advantageous manner freely can combine, superpose.
Be to be understood that, above-mentioned execution mode is only exemplary, and it is nonrestrictive, when not departing from general principle of the present utility model, the various obvious or equivalent amendment that those skilled in the art can make for above-mentioned details or replacement, all will be contained in right of the present utility model.
Claims (11)
1. a rotor, it comprises the rotor core with magnet slot, the magnetism-isolating loop being installed on the magnet in described magnet slot and being connected with described rotor core, it is characterized in that, described rotor core comprises multiple iron core piece, each iron core piece is connected to described magnetism-isolating loop individually, and adjacent iron core piece and magnetism-isolating loop form described magnet slot jointly.
2. rotor according to claim 1, is characterized in that, the outer peripheral face of described magnetism-isolating loop is provided with the limit mounting groove extended vertically, and the installation side of described iron core piece has the limit mounting structure coordinated with described limit mounting groove shape.
3. rotor according to claim 2, is characterized in that, described limit mounting groove comprises dovetail groove and/or T-slot, and described limit mounting structure comprises corresponding dovetail configuration and/or T-shaped structure.
4. according to the rotor one of claim 1-3 Suo Shu, it is characterized in that, described iron core piece comprises stacked multiple rotor punchings.
5. according to the rotor one of claim 1-3 Suo Shu, it is characterized in that, described magnetism-isolating loop is made up of non-magnetic metal material or nonmetallic materials.
6. a rotor, it comprises the rotor core with magnet slot and the magnet be installed in described magnet slot, it is characterized in that, described rotor core is alternately laminated by the first rotor punching and the second rotor punching and is formed, wherein, described second rotor punching lacks at the radially inner side position of described magnet slot and/or radial outside position at least in part compared to described the first rotor punching.
7. rotor according to claim 6, is characterized in that, described the first rotor punching is unitary rotor punching, and described second rotor punching corresponds to the part in described the first rotor punching between adjacent magnet slot in shape and size.
8. rotor according to claim 7, is characterized in that, described the first rotor punching connects into entirety by the hub portion of radially inner side.
9. rotor according to claim 7, is characterized in that, described the first rotor punching connects into entirety by the bridge portion of radial outside.
10. rotor according to claim 9, is characterized in that, described rotor also comprises the magnetism-isolating loop be connected with described rotor core.
11. 1 kinds of motors, is characterized in that, it comprises the described rotor of one of claim 1-10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520838858.5U CN205051467U (en) | 2015-10-26 | 2015-10-26 | Electric motor rotor and have its motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520838858.5U CN205051467U (en) | 2015-10-26 | 2015-10-26 | Electric motor rotor and have its motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205051467U true CN205051467U (en) | 2016-02-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520838858.5U Expired - Fee Related CN205051467U (en) | 2015-10-26 | 2015-10-26 | Electric motor rotor and have its motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205051467U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105226858A (en) * | 2015-10-26 | 2016-01-06 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of rotor and there is its motor |
| CN108306469A (en) * | 2017-01-13 | 2018-07-20 | 通用电气航空系统有限责任公司 | Method for manufacturing the shell for being used for electric machine |
| CN110277847A (en) * | 2018-05-31 | 2019-09-24 | 广东威灵电机制造有限公司 | Rotor and motor |
| CN113364174A (en) * | 2021-05-25 | 2021-09-07 | 浙江亚特电器有限公司 | Combined salient pole type motor rotor and motor |
-
2015
- 2015-10-26 CN CN201520838858.5U patent/CN205051467U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105226858A (en) * | 2015-10-26 | 2016-01-06 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of rotor and there is its motor |
| CN108306469A (en) * | 2017-01-13 | 2018-07-20 | 通用电气航空系统有限责任公司 | Method for manufacturing the shell for being used for electric machine |
| CN110277847A (en) * | 2018-05-31 | 2019-09-24 | 广东威灵电机制造有限公司 | Rotor and motor |
| CN113364174A (en) * | 2021-05-25 | 2021-09-07 | 浙江亚特电器有限公司 | Combined salient pole type motor rotor and motor |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160224 Termination date: 20211026 |