CN202679105U - Magnet mounting bracket of permanent magnet motor rotor - Google Patents
Magnet mounting bracket of permanent magnet motor rotor Download PDFInfo
- Publication number
- CN202679105U CN202679105U CN 201220123648 CN201220123648U CN202679105U CN 202679105 U CN202679105 U CN 202679105U CN 201220123648 CN201220123648 CN 201220123648 CN 201220123648 U CN201220123648 U CN 201220123648U CN 202679105 U CN202679105 U CN 202679105U
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- Prior art keywords
- magnetite
- rotor
- silicon steel
- steel sheet
- installing rack
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- Expired - Lifetime
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- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The utility model discloses a magnet mounting bracket of a permanent magnet motor rotor and a permanent magnet motor rotor. The magnet mounting bracket comprises at least two unit magnet brackets which are coaxially arranged in a distribution mode and a protective sleeve wrapping the at least two unit magnet brackets. The unit magnet bracket comprises a rotor silicon steel sheet and a magnet fixing support, wherein evenly distributed fixing grooves, whose number is the same as that of magnetic poles, are arranged around the rotor silicon steel sheet, and the central part of the rotor silicon steel sheet is provided with a plurality of locating holes. The magnet fixing support includes the rotor silicon steel sheet, the periphery of the front side is provided with fixing bosses corresponding to the fixing grooves, and the fixing bosses are embedded into the fixing grooves. The central part of the reverse side of the magnet fixing support is provided with locating bosses corresponding to the locating holes, wherein the locating bosses stagger a certain degree with the locating holes through rotating by taking a shaft as a center. The locating bosses of the magnet fixing support of the unit magnet bracket are inserted into locating holes of an adjacent rotor silicon steel sheet of an adjacent unit magnet bracket.
Description
Technical field
The utility model relates to the magneto field, in particular, relates to a kind of magnetite installing rack of permanent magnet machine rotor.
Background technology
Along with the development of permanent magnetic material, magneto more and more is used among industrial and agricultural production and the daily life, and particularly the application of the rare-earth permanent-magnet electric machine parent that obtains more designers looks at.Present motor mostly adopts tooth slot structure, and tooth is used for guiding the magnetic line of force, reduces magnetic resistance, and groove is used for inlaying winding, and with tooth in magnetic line of force interlinkage.The magnetic line of force that tooth and the different magnetic conductivity of groove make rotor have quantity not wait at diverse location, position at the accurate stator tooth of pole pair, the ferromagnetic suction of inhaling mutually reaches maximum, so that hindered the rotation of permanent magnetic motor rotor, make the rotation of rotor not steady, this just is called the slot effect of magneto-electric generator, and slot effect affects more obvious when the motor low-speed running.Reduce slot effect although can take appropriate measures in existing design of electrical motor manufacturing, eliminate slot effect fully, in existing electric machine structure, that is fully impossible.
Slot effect has not only increased the starting reactance of motor, but also so that generator operation is unstable, thereby the efficient of reduction generator, vibration and noise when having increased the motor operation.In order to reduce this slot effect, Chinese scholars has been carried out a large amount of research work, proposes a lot of solutions.Relatively the scheme of main flow all is to reduce slot effect by oblique magnetic stripe in traditional design now.As shown in Figure 1, this structure comprise rotor silicon steel sheet 1 ', axle and tiltedly magnetite bar 2 ', wherein, tiltedly magnetite bar 2 ' be bonded at rotor silicon steel sheet 1 ' on, rotor silicon steel sheet 1 ' be set on the rotation axis of motor.This scheme can well reduce slot effect, if but tiltedly magnetite bar 2 ' employings be the rare earth magnetite, neodymium iron boron for example, making thisly elongatedly will increase the difficulty on the manufacturing process again with gradient magnetic stripe, thereby the increase cost.Inner circle and the cylindrical of magnetic stripe must be concentric simultaneously, thereby have also further increased technologic difficulty.
For the required elongated difficulty of processing with gradient magnetic stripe again of above-mentioned rotor, in application number is 200620058637.7 utility application, provided the magnetite bar has been divided into several sections magnetites, then magnetite is made the modular construction of segmentation Heterogeneous Permutation, as shown in Figure 2, on the rotor silicon steel sheet of integral type 1 " magnetite be divided into segmented N utmost point magnetite 2 " and segmented S utmost point magnetite 3 ".This modular construction had both reduced the slot effect of motor, had solved again the high problem large with producting process difficulty of production cost of oblique magnetite bar.
Although provided the theory that the magnetite segmentation shifts to install in the said motor rotor, but its concrete implementation method is not proposed, do not propose magnetite and how to be implemented in even distribution on the rotor silicon steel sheet, guarantee can not occur the asymmetric phenomenon of utmost point magnetite, and do not relate to magnetite and how firmly to be installed in problem on the rotor silicon steel sheet, the phenomenon that it can not come off in the process of rotor high-speed rotation easily.
Therefore, how to design a kind of magnetite installing rack of permanent magnet machine rotor, can reduce on the basis of motor slot effect in assurance, both can reach and make the even distribution of magnetite on the rotor silicon steel sheet, how magnetite is fixedly mounted on the rotor silicon steel sheet is present those skilled in the art's problem demanding prompt solution very much.
The utility model content
In view of this, the utility model provides a kind of magnetite installing rack of permanent magnet machine rotor, can reduce on the basis of motor slot effect guaranteeing, can't guarantee in the prior art that to overcome magnetite is evenly distributed on rotor silicon steel sheet periphery and magnetite and can't be fixedly mounted in problem on the rotor silicon steel sheet.
For achieving the above object, the utility model provides following technical scheme:
A kind of magnetite installing rack of permanent magnet machine rotor is characterized in that, comprises at least two coaxial protective sleeves of enumerating unit magnet frame and at least two unit magnet frame of parcel of setting; Wherein, described unit magnet frame comprises rotor silicon steel sheet and magnetite fixed support;
Described rotor silicon steel sheet periphery is provided with the fixed groove identical with number of magnet poles and is evenly distributed, and described rotor silicon steel sheet middle part is provided with a plurality of location holes;
Described magnetite fixed support is included described rotor silicon steel sheet and positive periphery and is provided with the fixing lug boss of corresponding described fixed groove and is embedded in the described fixed groove, form the magnetite mounting groove with the rotor silicon steel sheet between the adjacent described fixing lug boss, described magnetite fixed support reverse side middle part is provided with corresponding described location hole and rotates the positioning boss of the angle that staggers with it centered by rotating shaft;
The support bracket fastened positioning boss of described magnetite in the described unit magnet frame is interspersed in it in the location hole of described rotor silicon steel sheet adjacent in the adjacent unit magnet frame.
Preferably, in the installing rack of above-mentioned permanent magnet machine rotor, the location hole of described rotor silicon steel sheet distributes along even circumferential.
Preferably, in the installing rack of above-mentioned permanent magnet machine rotor, the support bracket fastened positioning boss of described magnetite and the described rotor silicon steel sheet location hole position of staggering.
Preferably, in the installing rack of above-mentioned permanent magnet machine rotor, described rotor silicon steel sheet is laminated by a plurality of silicon steel thin slices and forms.
Preferably, in the installing rack of above-mentioned permanent magnet machine rotor, described fixing lug boss both sides are provided with lengthened plate.
Preferably, in the installing rack of above-mentioned permanent magnet machine rotor, described protective sleeve is stainless steel sleeve.
Magnetite installing rack based on the above-mentioned a kind of permanent magnet machine rotor that provides; the utility model also provides a kind of rotor of magneto; comprise magnetite installing rack and magnetite; described magnetite installing rack is the described magnetite installing rack of above-mentioned any one; the magnetite of adjacent magnetite mounting groove forms the magnetite bar on the described adjacent magnetite installing rack; described magnetite bar forms the alternate rotor field of N, S on adjacent rotor installing rack surface; described protective sleeve is stainless steel sleeve, is used for preventing magnetite coming off under High Rotation Speed.
Preferably, in above-mentioned permanent magnet machine rotor, the formed magnetite bar of magnetite that is installed on magnetite mounting groove adjacent on the described adjacent magnetite installing rack on the circumference of rotor silicon steel sheet by the certain orientation skew.
Via above-mentioned technical scheme as can be known, the utility model discloses a kind of magnetite installing rack of permanent magnet machine rotor, this magnetite installing rack comprises plural at least unit magnet frame, each unit magnet frame comprises rotor silicon steel sheet and magnetite fixed support, when the rotor silicon steel sheet is manufactured, can process the equally distributed fixed groove identical with number of magnet poles at its periphery, then process the fixedly convex of corresponding above-mentioned fixed groove and just in time be embedded in the fixed groove of rotor silicon steel sheet at magnetite fixed support front periphery, so just adjacently fixedly jointly form the magnetite mounting groove with the rotor silicon steel sheet between the convex in that magnetite is support bracket fastened, these mounting grooves are equally distributed because of fixing lug boss, so the magnetite mounting groove that forms also must be equally distributed, the magnetite of then installing is namely equally distributed.And magnetite also is installed in the magnetite mounting groove; by protective sleeve whole magnetite and magnetite frame are wrapped up; just guaranteed that so also magnetite can not break away from from the rotor silicon steel sheet easily in the process of rotor high-speed rotation, guaranteed the fastness of magnetite on the rotor silicon steel sheet.
In order to guarantee the tight connection between each unit magnet frame, be provided with a plurality of location holes at the middle part of rotor silicon steel sheet.Be provided with corresponding above-mentioned location hole and centered by rotating shaft, rotate the positioning boss of the angle that staggers with it at the support bracket fastened reverse side of magnetite.When adjacent two unit magnet frame clampings, the support bracket fastened positioning boss of adjacent upstream magnetite is interspersed in the location hole of unit magnet frame rotor silicon steel sheet of adjacent downstream.And in the design that reduces slot effect, because positioning boss rotates the position of staggering centered by rotating shaft, the angle so adjacent downstream unit's magnet frame and adjacent upstream unit's magnet frame just stagger mutually, the size of this angle can calculate and measure according to the slot effect of different motors to this angle, reduces the slot effect of motor to obtain optimum deviation angle.
This magnet installing rack can reduce on the basis of motor slot effect having guaranteed, both reached and made magnetite can keep simply and easily distributing symmetrically when mounted, the fastness of magnetite on the rotor silicon steel sheet strengthened, made its difficult drop-off when rotor high-speed rotates.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is embodiment of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to the accompanying drawing that provides other accompanying drawing.
Fig. 1 is the rotor structure schematic diagram of the slanted bar magnet structure magneto that cost is high in the prior art, difficulty of processing is high;
Fig. 2 is the rotor structure schematic diagram of the magneto of magnetic stripe segmentation skew in the prior art;
Fig. 3 is the disclosed magnetite fixed support of the utility model embodiment Facad structure schematic diagram;
Fig. 4 is the disclosed magnetite fixed support of the utility model embodiment reverse side structural representation;
Fig. 5 is the structural representation of the disclosed unit of the utility model embodiment magnet frame;
Fig. 6 is the disclosed rotor structure schematic diagram that is assembled into by a plurality of units magnet frame and magnetite of the utility model embodiment;
Fig. 7 is the installation diagram of the disclosed permanent magnet machine rotor of the utility model embodiment.
In Fig. 1: 1 ' be rotor silicon steel sheet, 2 ' for oblique magnetite bar;
In Fig. 2: 1 " being rotor silicon steel sheet, 2 " is segmented N utmost point magnetite, 3 " is segmented S utmost point magnetite;
In Fig. 3-Fig. 7: 1 is that rotor silicon steel sheet, 2 is that magnetite, 3 is that magnetite fixed support, 4 is that protective sleeve, 11 is that fixed groove, 12 is that location hole, 31 is that fixing lug boss, 32 is positioning boss.
Embodiment
The purpose of this utility model is can reduce on the basis of motor slot effect in assurance, a kind of magnetite installing rack of permanent magnet machine rotor is provided, both reached and made magnetite can keep simply and easily distributing symmetrically when mounted, the fastness of magnetite on the rotor silicon steel sheet strengthened, made its difficult drop-off when rotor high-speed rotates.
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that obtains under the creative work prerequisite, all belong to the scope of the utility model protection.
Fig. 3 is the disclosed magnetite fixed support of the utility model embodiment Facad structure schematic diagram; Fig. 4 is the disclosed magnetite fixed support of the utility model embodiment reverse side structural representation; Fig. 5 is the structural representation of the disclosed unit of the utility model embodiment magnet frame.
Please refer to accompanying drawing 3,4 and 5, the magnetite installing rack of the permanent magnet machine rotor that present embodiment provides comprises at least two coaxial protective sleeves 4 of enumerating unit magnet frame and at least two unit magnet frame of parcel of setting; Wherein, the unit magnet frame comprises rotor silicon steel sheet 1 and magnetite fixed support 3;
Rotor silicon steel sheet 1 periphery is provided with the fixed groove identical with number of magnet poles 11 and is evenly distributed, and rotor silicon steel sheet 1 middle part is provided with location hole 12;
Magnetite fixed support 3 is included rotor silicon steel sheet 1 and positive periphery and is provided with the fixing lug boss 31 of corresponding fixed groove 11 and is embedded in the fixed groove 11, form the magnetite mounting groove between the adjacent fixing lug boss 31, magnetite fixed support 3 reverse side middle part is provided with corresponding location hole 12 and rotates the positioning boss 32 of the angle that staggers with it centered by axle;
32 of the convexes of the magnetite fixed support 3 in the adjacent cells magnet frame are interspersed in it the location hole interior 12 of rotor silicon steel sheet 1 adjacent in the adjacent unit magnet frame.
The area of magnetite fixed support 3 is a bit larger tham rotor silicon steel sheet 1, and is longer than the adjacent fixing lug boss 31 that is interspersed on the rotor silicon steel sheet 1, cuts off into the magnetite mounting groove between it, is used for installing magnetite 2.
Unit magnet frame quantity is six in the utility model embodiment, and the positioning boss 31 in the unit magnet frame of adjacent upstream is interspersed in the location hole 12 of rotor silicon steel sheet 1 of unit magnet frame of adjacent downstream, and the unit's of making magnet frame is assembled into the magnetite installing rack.And because six positioning boss 32 that magnetite fixed support 3 reverse side middle parts arranges, be corresponding described six location holes 12 and centered by rotating shaft, rotate the position of staggering with it.So when adjacent downstream unit's magnet frame is connected adjacent upstream unit's magnet frame, also with regard to automatic rotation an angle, adjacent like this two magnetite mounting grooves that are close to position of will staggering forms the magnetite bar of segmented, and this magnetite bar is in order to reduce the slot effect of magneto.
In order further to optimize technique scheme, the location hole 12 of rotor silicon steel sheet 1 is evenly to distribute, and makes the overall structure stress equalization of rotor silicon steel sheet 1 and unit magnet frame, and structure is more stable.And present embodiment is provided with six location holes 12, and the quantity of this location hole 12 also can be three, and is perhaps more.General six location holes 12 just can make the highly stable effect of structure.
In order further to optimize technique scheme, the positioning boss 32 of magnetite fixed support 3 and the location hole 12 of rotor silicon steel sheet 1 revolve the position of staggering clockwise, hole centered by rotating shaft.Magnetite bar groove in the magnetite installing rack that three unit magnet frame form in the present embodiment like this just can be clockwise skew or.The demand that can turn to by rotor, perhaps other influences is judged the skew direction of magnetite bar groove.
In order further to optimize technique scheme, rotor silicon steel sheet 1 is laminated by several rotor silicon steel thin slices and forms, and so just can block the eddy current that forms between each rotor silicon steel thin slice, protects it not burnt.
In order further to optimize technique scheme; fixing lug boss 31 both sides are provided with lengthened plate, are equivalent to add for magnetite the protection of both sides wing, make the magnetite 2 in its wider parcel magnetite mounting groove; allow magnetite 2 when rotor high-speed rotates, can more stablize firmly.
In order further to optimize technique scheme, the protective sleeve 4 that present embodiment provides is stainless steel sleeve.
Fig. 6 is the disclosed rotor structure schematic diagram that is assembled into by a plurality of units magnet frame and magnetite of the utility model embodiment; Fig. 7 is the installation diagram of the disclosed permanent magnet machine rotor of the utility model embodiment.
Please refer to accompanying drawing 6 and accompanying drawing 7, based on above-mentioned magnetite installing rack, the utility model also provides a kind of rotor of magneto, comprises magnetite installing rack and magnetite 2.The magnetite installing rack is the magnetite installing rack of foregoing description, and magnetite 2 is installed in the magnetite mounting groove of magnetite installing rack, the magnetite 2 of adjacent magnetite mounting groove forms the magnetite bar on the adjacent magnetite installing rack, and the magnetite bar forms the alternate rotor field of N, S on adjacent rotor installing rack surface
In the present embodiment, the magnetite 2 that is installed on magnetite mounting groove adjacent on the described adjacent magnetite installing rack is namely clockwise because of the bar shaped magnetite mounting groove that the magnetite mounting groove forms, and then formed magnetite bar is clockwise skew just also.Also be all the demand that can turn to by rotor, reconcile the magnetite fixed support centered by rotating shaft to another direction rotation skew direction that a position regulates the magnetite bar that staggers.
Via above-mentioned technical scheme as can be known, the utility model discloses a kind of magnetite installing rack of permanent magnet machine rotor, this magnetite installing rack comprises plural at least unit magnet frame, each unit magnet frame comprises rotor silicon steel sheet and magnetite fixed support, when the rotor silicon steel sheet is manufactured, can process the equally distributed fixed groove identical with number of magnet poles at its periphery, then process the fixedly convex of corresponding above-mentioned fixed groove and just in time be embedded in the fixed groove of rotor silicon steel sheet at magnetite fixed support front periphery, so just adjacently fixedly jointly form the magnetite mounting groove with the rotor silicon steel sheet between the convex in that magnetite is support bracket fastened, these mounting grooves are equally distributed because of fixing lug boss, so the magnetite mounting groove that forms also must be equally distributed, the magnetite of then installing is namely equally distributed.And magnetite also is installed in the magnetite mounting groove; by protective sleeve whole magnetite and magnetite frame are wrapped up; just guaranteed that so also magnetite can not break away from from the rotor silicon steel sheet easily in the process of rotor high-speed rotation, guaranteed the fastness of magnetite on the rotor silicon steel sheet.
In order to guarantee the tight connection between each unit magnet frame, be provided with a plurality of location holes at the middle part of rotor silicon steel sheet.Be provided with corresponding above-mentioned location hole and centered by rotating shaft, rotate the positioning boss of the angle that staggers with it at the support bracket fastened reverse side of magnetite.When adjacent two unit magnet frame clampings, the support bracket fastened positioning boss of adjacent upstream magnetite is interspersed in the location hole of unit magnet frame rotor silicon steel sheet of adjacent downstream.And in the design that reduces slot effect, because positioning boss rotates the position of staggering centered by rotating shaft, the angle so adjacent downstream unit's magnet frame and adjacent upstream unit's magnet frame just stagger mutually, the size of this angle can calculate and measure according to the slot effect of different motors to this angle, reduces the slot effect of motor to obtain optimum deviation angle.
This magnet installing rack can reduce on the basis of motor slot effect having guaranteed, both reached and made magnetite can keep simply and easily distributing symmetrically when mounted, the fastness of magnetite on the rotor silicon steel sheet strengthened, made its difficult drop-off when rotor high-speed rotates.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the utility model.Multiple modification to these embodiment will be apparent concerning those skilled in the art, and General Principle as defined herein can in the situation that does not break away from spirit or scope of the present utility model, realize in other embodiments.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (8)
1. the magnetite installing rack of a permanent magnet machine rotor is characterized in that, comprises at least two coaxial protective sleeves of enumerating unit magnet frame and at least two unit magnet frame of parcel of setting; Wherein, described unit magnet frame comprises rotor silicon steel sheet (1) and magnetite fixed support (3);
Described rotor silicon steel sheet (1) periphery is provided with the fixed groove identical with number of magnet poles (11) and is evenly distributed, and described rotor silicon steel sheet (1) middle part is provided with a plurality of location holes (12);
Described magnetite fixed support (3) is included described rotor silicon steel sheet (1) and positive periphery and is provided with the fixing lug boss (31) of corresponding described fixed groove (11) and is embedded in the described fixed groove (11), form the magnetite mounting groove between the adjacent described fixing lug boss (31), described magnetite fixed support (3) reverse side middle part is provided with corresponding described location hole (12) and rotates the positioning boss (32) of the angle that staggers with it centered by rotating shaft;
The positioning boss (32) of the described magnetite fixed support (3) in the described unit magnet frame is interspersed in it the location hole interior (12) of described rotor silicon steel sheet (1) adjacent in the adjacent unit magnet frame.
2. the magnetite installing rack of permanent magnet machine rotor according to claim 1 is characterized in that, the location hole (12) of described rotor silicon steel sheet (1) evenly distributes.
3. the magnetite installing rack of permanent magnet machine rotor according to claim 1, it is characterized in that the positioning boss (32) of described magnetite fixed support (3) and the location hole (12) of described rotor silicon steel sheet (1) revolve the position of staggering clockwise, hole centered by rotating shaft.
4. the magnetite installing rack of permanent magnet machine rotor according to claim 1 is characterized in that, described rotor silicon steel sheet (1) is laminated by a plurality of silicon steel thin slices and forms.
5. the magnetite installing rack of permanent magnet machine rotor according to claim 1 is characterized in that, described fixing lug boss (31) both sides are provided with lengthened plate.
6. the magnetite installing rack of each described permanent magnet machine rotor is characterized in that according to claim 1-5, and described protective sleeve (4) is stainless steel sleeve.
7. the rotor of a magneto, comprise magnetite installing rack and magnetite (2), it is characterized in that, described magnetite installing rack is the described magnetite installing rack of claim 1-6 any one, described magnetite (2) is installed in the magnetite mounting groove of described magnetite installing rack, the magnetite (2) of adjacent magnetite mounting groove forms the magnetite bar on the described adjacent magnetite installing rack, and described magnetite bar forms the alternate rotor field of N, S on adjacent rotor installing rack surface.
8. the rotor of magneto according to claim 7 is characterized in that, the formed magnetite bar of magnetite (2) that is installed on the magnetite mounting groove on a plurality of described magnetite installing racks is clockwise skew.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220123648 CN202679105U (en) | 2012-03-28 | 2012-03-28 | Magnet mounting bracket of permanent magnet motor rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220123648 CN202679105U (en) | 2012-03-28 | 2012-03-28 | Magnet mounting bracket of permanent magnet motor rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202679105U true CN202679105U (en) | 2013-01-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220123648 Expired - Lifetime CN202679105U (en) | 2012-03-28 | 2012-03-28 | Magnet mounting bracket of permanent magnet motor rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202679105U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI502858B (en) * | 2013-01-28 | 2015-10-01 | Mitsubishi Electric Corp | Permanent magnet type rotating electrical machine |
| CN113078752A (en) * | 2021-04-12 | 2021-07-06 | 苏州德迈科电机技术有限公司 | Five-phase permanent magnet motor rotor structure with unequal magnetic pole numbers in sections |
-
2012
- 2012-03-28 CN CN 201220123648 patent/CN202679105U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI502858B (en) * | 2013-01-28 | 2015-10-01 | Mitsubishi Electric Corp | Permanent magnet type rotating electrical machine |
| CN113078752A (en) * | 2021-04-12 | 2021-07-06 | 苏州德迈科电机技术有限公司 | Five-phase permanent magnet motor rotor structure with unequal magnetic pole numbers in sections |
| CN113078752B (en) * | 2021-04-12 | 2022-11-25 | 苏州德迈科电机技术有限公司 | Five-phase permanent magnet motor rotor structure with unequal magnetic pole numbers in sections |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 4 / F, building 1, No.14 Jiuxianqiao Road, Chaoyang District, Beijing 100020 Patentee after: Beijing Jingwei Hengrun Technology Co., Ltd Address before: 100101 Beijing city Chaoyang District Anxiang Beili 11 B block 8 layer Patentee before: Beijing Jingwei HiRain Technologies Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130116 |