CN204992948U - Direct current motor's structure - Google Patents
Direct current motor's structure Download PDFInfo
- Publication number
- CN204992948U CN204992948U CN201520556421.2U CN201520556421U CN204992948U CN 204992948 U CN204992948 U CN 204992948U CN 201520556421 U CN201520556421 U CN 201520556421U CN 204992948 U CN204992948 U CN 204992948U
- Authority
- CN
- China
- Prior art keywords
- hall element
- direct current
- current machine
- magnet steel
- element fixed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The utility model relates to a direct current motor's structure the upper end or the lower extreme of stator wire casing mouth seted up hall element fixed slot, the hall element holding in hall element fixed slot, the utility model discloses hall element gathers with the signal of feedback more accurately and timely in directly being in the inside magnetic field of motor to promote the efficiency of controller, reduced the error.
Description
Technical field
The utility model relates to motor technology, specifically a kind of structure of direct current machine.
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, offers Hall element fixed card slot in the upper end of described stator slot mouth or lower end, and described Hall element is placed in Hall element fixed card slot; The utility model 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.
For achieving the above object by the following technical solutions:
A structure for direct current machine, comprises stators and rotators, it 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.
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 inside of described rotor has some groups of V-arrangement magnet steel grooves, and some groups of V-arrangement magnet steel grooves are symmetrical centered by rotating shaft, are plugged with rectangle magnetic links in V-arrangement magnet steel groove, and 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.
Upper end at stator slot mouth of the present utility model or lower end offer Hall element fixed card slot, 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, comprise stator 1 and rotor 2, the external diameter of described stator 1 is 120mm or 138mm, internal diameter is 75mm or 86mm, the external diameter of corresponding rotor is 74mm or 85mm, 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 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.
The utility model also has some groups of V-arrangement magnet steel grooves 21 in the inside of described rotor in addition, some groups of V-arrangement magnet steel grooves 21 are symmetrical centered by rotating shaft, be plugged with rectangle magnetic links 3 in V-arrangement magnet steel groove, 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.
Claims (8)
1. a structure for direct current machine, comprises stators and rotators, it 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.
2. the structure of a kind of direct current machine as claimed in claim 1, 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.
3. the structure of a kind of direct current machine as claimed in claim 1, 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.
4. the structure of a kind of direct current machine as claimed in claim 3, 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.
5. the structure of a kind of direct current machine as claimed in claim 4, 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.
6. the structure of a kind of direct current machine as claimed in claim 5, 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.
7. the structure of a kind of direct current machine as described in claim 5 or 6, is characterized in that: the width of described divider is less than 1mm.
8. the structure of a kind of direct current machine as claimed in claim 1, 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 |
|---|---|---|---|
| CN201520556421.2U CN204992948U (en) | 2015-07-29 | 2015-07-29 | Direct current motor's structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520556421.2U CN204992948U (en) | 2015-07-29 | 2015-07-29 | Direct current motor's structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204992948U true CN204992948U (en) | 2016-01-20 |
Family
ID=55127272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520556421.2U Expired - Fee Related CN204992948U (en) | 2015-07-29 | 2015-07-29 | Direct current motor's structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204992948U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109341510A (en) * | 2018-10-31 | 2019-02-15 | 上海瑞视仪表电子有限公司 | A kind of wind-driven generator measurement of air gap device |
-
2015
- 2015-07-29 CN CN201520556421.2U patent/CN204992948U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109341510A (en) * | 2018-10-31 | 2019-02-15 | 上海瑞视仪表电子有限公司 | A kind of wind-driven generator measurement of air gap device |
| CN109341510B (en) * | 2018-10-31 | 2021-07-09 | 上海瑞视仪表电子有限公司 | Air gap measuring device of wind driven generator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204992834U (en) | Direct current motor decides structure of rotor | |
| CN103219814A (en) | Asynchronous starting permanent magnet synchronous motor rotor based on permanent magnets with different residual magnetic densities | |
| CN106300728A (en) | Permanent magnet machine rotor and permagnetic synchronous motor | |
| CN202424445U (en) | Switch reluctance motor with parallel structure | |
| CN201781395U (en) | Direct current brushless motor stator and rotor device with low cogging torque | |
| CN202798218U (en) | High-speed permanent-magnet synchronous motor | |
| CN204992948U (en) | Direct current motor's structure | |
| CN204258455U (en) | A kind of Novel electric excitation biconvex electrode electric machine stator punching | |
| CN101162880A (en) | Power source producing method | |
| CN103401329A (en) | Novel permanent-magnet motor rotor | |
| CN202997723U (en) | Permanent magnetic motor | |
| CN201365146Y (en) | Permanent-magnet machine with permanent magnet embedded on stator and projecting pole rotor | |
| CN201393164Y (en) | Switching reluctance motor | |
| CN204810097U (en) | Built -in permanent -magnet machine | |
| CN204013163U (en) | Ceiling fan DC brushless motor | |
| CN203840082U (en) | Automatic electric machine stator punching sheet | |
| CN204465312U (en) | Turbine inductor type stepping motor | |
| CN202997899U (en) | Stator & rotor that can be positioned and is used for direct current brushless motor | |
| CN204316295U (en) | Pump speed governing three-phase permanent magnet synchronous motor | |
| CN204168027U (en) | A kind of rotor for electromotor | |
| CN202026171U (en) | Novel permanent magnet inner rotor motor | |
| CN206341055U (en) | Novel synchronous motor | |
| CN202026222U (en) | Novel permanent-magnet outer rotor motor | |
| CN202353415U (en) | Permanent magnet coreless brushless electric machine | |
| CN202918160U (en) | High-efficiency permanent-magnetic frequency-variable speed-regulating three-phase synchronous motor |
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 |