CN204992834U - Direct current motor decides structure of rotor - Google Patents
Direct current motor decides structure of rotor Download PDFInfo
- Publication number
- CN204992834U CN204992834U CN201520555912.5U CN201520555912U CN204992834U CN 204992834 U CN204992834 U CN 204992834U CN 201520555912 U CN201520555912 U CN 201520555912U CN 204992834 U CN204992834 U CN 204992834U
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- China
- Prior art keywords
- magnet steel
- direct current
- rotor
- hall element
- current machine
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Abstract
The utility model relates to a direct current motor decides structure of rotor wherein has a plurality of V -arrangement magnet steel slot of group inside the opening of rotor, and it has rectangle magnet steel piece to peg graft in the V -arrangement magnet steel slot, and rectangle magnet steel piece is convenient for arc magnet steel wafer process, can practice thrift the cost, the utility model discloses a sinusoidal wave FOC vector control ware control, have generate heat low, the characteristics of silence.
Description
Technical field
The utility model relates to motor technology, specifically a kind of structure of direct current machine rotor.
Background technology
Direct current machine is made up of stators and rotators, has certain air gap therebetween, and the outer rim of its rotor posts some magnetic links, due to rotor be cylinder therefore magnetic links also need to be processed into arc, this magnetic links difficulty of processing is comparatively large, and processing loss is comparatively large, causes cost higher; There is back-emf in the rotor that arc magnetic links is pasted on current this surface in addition, when causing motor to run, caloric value is large, there is larger noise during high speed in commutation process; The Hall element of existing direct current machine is arranged on the outside of stators and rotators in addition, can only collect external magnetic field signal, causes to feed back to controller signals and exist delayed, causes the decline of the performance of motor.
Utility model content
The purpose of this utility model is the structure providing a kind of direct current machine rotor, wherein have some groups of V-arrangement magnet steel grooves at internal rotor, be plugged with rectangle magnetic links in V-arrangement magnet steel groove, rectangle magnetic links is easy to process relative to arc magnetic links, can be cost-saving; The utility model is controlled by sinusoidal wave FOC vector controller, has heating low, quiet feature.
For achieving the above object by the following technical solutions:
A kind of structure of direct current machine rotor, comprise stators and rotators, it is characterized in that: the inside of described rotor has some groups of V-arrangement magnet steel grooves, some groups of V-arrangement magnet steel grooves are symmetrical centered by rotating shaft, be plugged with rectangle magnetic links in V-arrangement magnet steel groove, the polarity of the rectangle magnetic links in adjacent V-arrangement magnet steel groove is contrary.
Described V-arrangement magnet steel groove comprises two skewed slots in left and right, and the top and bottom of two skewed slots in left and right are provided with magnetic conductive groove.
Between the magnetic conductive groove of two skewed slot lower ends, left and right, be provided with divider, divider makes two skewed slots in left and right not be communicated with.
Also divider is provided with between the magnetic conductive groove of described two skewed slot upper ends, left and right and the magnetic conductive groove of adjacent V-arrangement magnet steel groove upper end.
The width of described divider is less than 1mm.
Offer Hall element fixed card slot in the upper end of described stator slot mouth or lower end, described Hall element is placed in Hall element fixed card slot.
In described stator slot mouth, three stator slot mouths are only had to have Hall element fixed card slot, these three Hall element fixed card slot carrier phase shift 60 degree or 120 degree.
The degree of depth of described Hall element fixed card slot is 3mm to 5mm.
The utility model has some groups of V-arrangement magnet steel grooves at internal rotor, the magnetic links of pluggable rectangle in V-arrangement magnet steel groove, lower relative to arc magnetic links cost, and the loss of processing rectangle magnetic steel material is less, thus has saved the energy; Some groups of V-arrangement magnet steel coordinate sinusoidal wave FOC vector controller in addition, square wave is substituted by sine-wave current, overcome current switching process when existing direct current machine works and there is the problem of back-emf, when adopting sinusoidal wave FOC vector control electric motor to work, wire is better, work more stable, promote the conversion ratio of electric energy, reduce and generate heat and there is quiet effect.
Upper end at stator slot mouth of the present utility model or lower end offer Hall element fixed card slot in addition, wherein three Hall element carrier phase shift 60 degree or 120 degree, Hall element is embedded between stator and rotor and gathers field signal more accurately and timely, reduce error, ensure the operation of motor efficient stable.
Accompanying drawing explanation
Fig. 1 is internal structure schematic diagram of the present utility model;
Fig. 2 is the internal structure schematic diagram of the utility model rotor;
Fig. 3 is the internal structure schematic diagram of the utility model stator.
Embodiment
As Figure 1-3, a kind of structure of direct current machine rotor, comprise stator 1 and rotor 2, the external diameter of described stator 1 is 120mm or 138mm, and internal diameter is 75mm or 86mm, and the external diameter of corresponding rotor is 74mm or 85mm, the inside of described rotor has some groups of V-arrangement magnet steel grooves 21, some groups of V-arrangement magnet steel grooves 21 are symmetrical centered by rotating shaft, are plugged with rectangle magnetic links 3 in V-arrangement magnet steel groove, and the polarity of the rectangle magnetic links 3 in adjacent V-arrangement magnet steel groove 21 is contrary.
Described V-arrangement magnet steel groove 21 comprises two skewed slots 211,212 in left and right, and the top and bottom of two, left and right skewed slot 211,212 are provided with magnetic conductive groove 22; Between the magnetic conductive groove 22 of two skewed slot lower ends, left and right, be provided with divider 23, divider 23 makes two skewed slots in left and right not be communicated with, and is also provided with divider 23 between the magnetic conductive groove of described two skewed slot upper ends, left and right and the magnetic conductive groove of adjacent V-arrangement magnet steel groove upper end; The width of described divider 23 is less than 1mm.
The utility model has some groups of V-arrangement magnet steel grooves 21 in rotor 2 inside, the magnetic links 3 of pluggable rectangle in V-arrangement magnet steel groove 21, and rectangle magnetic links is lower relative to arc magnetic links cost, and the loss of processing rectangle magnetic steel material is less, thus has saved the energy; Some groups of V-arrangement magnet steel coordinate sinusoidal wave FOC vector controller in addition, substitute square wave by sine-wave current, overcome existing surface current switching process when arc magnetic links direct current machine works of pasting and there is the problem of back-emf; In left and right, the top and bottom of two skewed slots 211,212 are provided with magnetic conductive groove 22, the existence of magnetic conductive groove makes magnetic field more meet sinusoidal wave FOC vector control, and during machine operation, wire is better, works more stable, promote the conversion ratio of electric energy, reduce and generate heat and there is quiet effect.
The utility model reduces error in order to controller more precisely can control motor in addition, and offer Hall element fixed card slot 12 in the upper end of the notches for wire 11 of described stator 1 or lower end, the degree of depth of described Hall element fixed card slot 12 is 3mm to 5mm; Described Hall element 5 is placed in Hall element fixed card slot 12, only has three stator slot mouths to have Hall element fixed card slot 12 in described stator slot mouth 11, these three Hall element fixed card slot carrier phase shift 60 degree or 120 degree; Hall element is directly in the magnetic field of motor internal, and the signal of collection and feedback more accurately with in time, thus improves the efficiency of controller, minimizing error.
Claims (8)
1. the structure of a direct current machine rotor, comprise stators and rotators, it is characterized in that: the inside of described rotor has some groups of V-arrangement magnet steel grooves, some groups of V-arrangement magnet steel grooves are symmetrical centered by rotating shaft, be plugged with rectangle magnetic links in V-arrangement magnet steel groove, the polarity of the rectangle magnetic links in adjacent V-arrangement magnet steel groove is contrary.
2. the structure of a kind of direct current machine rotor as claimed in claim 1, is characterized in that: described V-arrangement magnet steel groove comprises two skewed slots in left and right, and the top and bottom of two skewed slots in left and right are provided with magnetic conductive groove.
3. the structure of a kind of direct current machine rotor as claimed in claim 2, is characterized in that: between the magnetic conductive groove of two skewed slot lower ends, left and right, be provided with divider, and divider makes two skewed slots in left and right not be communicated with.
4. the structure of a kind of direct current machine rotor as claimed in claim 3, is characterized in that: be also provided with divider between the magnetic conductive groove of described two skewed slot upper ends, left and right and the magnetic conductive groove of adjacent V-arrangement magnet steel groove upper end.
5. the structure of a kind of direct current machine rotor as described in claim 3 or 4, is characterized in that: the width of described divider is less than 1mm.
6. the structure of a kind of direct current machine rotor as claimed in claim 1, is characterized in that: offer Hall element fixed card slot in the upper end of described stator slot mouth or lower end, described Hall element is placed in Hall element fixed card slot.
7. the structure of a kind of direct current machine rotor as claimed in claim 6, it is characterized in that: in described stator slot mouth, only have three stator slot mouths to have Hall element fixed card slot, these three Hall element fixed card slot carrier phase shift 60 degree or 120 degree.
8. the structure of a kind of direct current machine rotor as claimed in claim 6, is characterized in that: the degree of depth of described Hall element fixed card slot is 3mm to 5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520555912.5U CN204992834U (en) | 2015-07-29 | 2015-07-29 | Direct current motor decides structure of rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520555912.5U CN204992834U (en) | 2015-07-29 | 2015-07-29 | Direct current motor decides structure of rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204992834U true CN204992834U (en) | 2016-01-20 |
Family
ID=55127159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520555912.5U Expired - Fee Related CN204992834U (en) | 2015-07-29 | 2015-07-29 | Direct current motor decides structure of rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204992834U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105703575A (en) * | 2016-04-09 | 2016-06-22 | 哈尔滨工业大学 | Winding method of unequal-turn coil of compact type mechanical arm joint motor |
| CN105720761A (en) * | 2016-04-09 | 2016-06-29 | 哈尔滨工业大学 | Block type iron core winding method of compact permanent magnet brushless motor |
| CN106870121A (en) * | 2017-03-08 | 2017-06-20 | 安徽康诺新能源汽车技术有限公司 | Fuel cell car two-stage pressurization air compressor system |
| CN109104013A (en) * | 2017-06-21 | 2018-12-28 | 发那科株式会社 | Rotor and rotating electric machine |
| CN113036971A (en) * | 2021-03-05 | 2021-06-25 | 江苏聚磁电驱动科技有限公司 | Single-wire multilayer winding distribution structure of motor and high-performance motor applying same |
-
2015
- 2015-07-29 CN CN201520555912.5U patent/CN204992834U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105703575A (en) * | 2016-04-09 | 2016-06-22 | 哈尔滨工业大学 | Winding method of unequal-turn coil of compact type mechanical arm joint motor |
| CN105720761A (en) * | 2016-04-09 | 2016-06-29 | 哈尔滨工业大学 | Block type iron core winding method of compact permanent magnet brushless motor |
| CN105703575B (en) * | 2016-04-09 | 2017-12-29 | 哈尔滨工业大学 | A kind of compact mechanical shoulder joint motor unequal turns winding winding method |
| CN105720761B (en) * | 2016-04-09 | 2018-05-01 | 哈尔滨工业大学 | A kind of compact permanent magnetic brushless sectional type iron core method for winding |
| CN106870121A (en) * | 2017-03-08 | 2017-06-20 | 安徽康诺新能源汽车技术有限公司 | Fuel cell car two-stage pressurization air compressor system |
| CN109104013A (en) * | 2017-06-21 | 2018-12-28 | 发那科株式会社 | Rotor and rotating electric machine |
| CN109104013B (en) * | 2017-06-21 | 2020-03-03 | 发那科株式会社 | Rotor and rotating electrical machine |
| CN113036971A (en) * | 2021-03-05 | 2021-06-25 | 江苏聚磁电驱动科技有限公司 | Single-wire multilayer winding distribution structure of motor and high-performance motor applying 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160120 Termination date: 20200729 |