CN2620422Y - Permanent magnet dc motor - Google Patents
Permanent magnet dc motor Download PDFInfo
- Publication number
- CN2620422Y CN2620422Y CN 03228474 CN03228474U CN2620422Y CN 2620422 Y CN2620422 Y CN 2620422Y CN 03228474 CN03228474 CN 03228474 CN 03228474 U CN03228474 U CN 03228474U CN 2620422 Y CN2620422 Y CN 2620422Y
- Authority
- CN
- China
- Prior art keywords
- motor
- commutator
- fixed
- commutator segment
- rotor
- 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
Images
Landscapes
- Dc Machiner (AREA)
Abstract
The utility model relates to a permanent magnet DC electromotor technology, comprising a stator part and a rotor part, which is characterized in that a fixed shaft of the electromotor is fixedly provided with an armature winding distributed circumferentially by a bracket of the electromotor to form the stator and a compound commutator is arranged on the stator; the fixed shaft of the electromotor is fixedly provided with a shell of the electromotor and permanent magnets are distributed circumferentially in the shell to form the rotor; a carbon brush component is arranged in the shell to conduct each commutator bar and feed loop. The utility model is applicable particularly to the places where an electric bicycle hub motor is used and the outermost part of the motor circumference is required to be rotational.
Description
Technical field
The utility model relates to the technical field of permanent magnet direct current motor.
Background technology
In brush permanent magnet direct current motor series is arranged, up to now, generally the structure of Cai Yonging is such, permanent magnet and carbon brush component are combined into one as stator, the silicon steel sheet coil windings is combined into one as rotor, also be armature, be internal rotor or external rotor or disk rotor motor without exception all be this rotor relation.Certainly stator structural design outside also has its advantage, as comparing safety, because rotor is the inside at stator, so the rotation of rotor can not be subjected to ectocine, near also can not injuring object, but according to relevant design of electrical motor theory, power of electric motor is relevant with the radius of clean-up of rotor, rotor radius is bigger, power output and moment of torsion are also bigger, so if the motor of equal volume has adopted rotor in lining stator structural design outside, certainly will cause its power to descend and moment of torsion reduces, especially for the wheel hub motor of electric bicycle, itself outmost circumferential section is exactly the requirement rotation, so that drive the wheel of electric bicycle, if still adopt rotor to seem that in lining stator structural design outside some is lost more than gain for the motor that resembles these use occasions.Though some producer has also adopted some outer rotor motors, its armature outside, but its radius of clean-up is little, the armature volume is big, the consumed power of armature own is more, also have and adopt brushless electric machine, it places rotation external rotor position with permanent magnet, thereby make its radius of clean-up be amplified to maximum, but general brushless motor need adopt the commutator of electronic type, as Hall element or the like, cause the manufacturing cost of its motor to rise, for have the brush motor can with its rotor design outside, also make its radius of clean-up be amplified to maximum, forefathers still not to attempt.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of permanent magnet direct current motor at existing background technology, it will have the brush motor rotor design outside, make its radius of clean-up be amplified to maximum, under equal volume, made the brush motor accomplish that power is big, and simple in structure, easy manufacturing, the low advantage of cost have been arranged.
Realize that the utility model purpose technical scheme is such: this kind permanent magnet direct current motor, it includes stationary part and rotor portion, it is characterized in that motor fixing shaft is fixed with by electric machine support is circle distribution armature winding as stator, be provided with compound commutator on the stator, motor fixing shaft has motor housing by bearing fixing simultaneously, motor housing the inside circle distribution has permanent magnet as rotor, also is set with the carbon brush component with commutator segment on the compound commutator and electric feedback ring conducting piecewise in the motor housing.
Above-mentioned compound commutator adopts column structure, the periphery circumference that is fixed on the motor fixing shaft is evenly distributed with commutator segment, the not conducting of insulating between the commutator segment, simultaneously commutator segment is connected with separately coil windings by one group of connecting line, is fixed with the electric feedback ring that is connected with power feeder in the both sides of commutator segment.
Above-mentioned compound commutator also can adopt disc structure, the disc surfaces circumference that is fixed on the motor fixing shaft is evenly distributed with commutator segment, the not conducting of insulating between the commutator segment, simultaneously commutator segment is connected with separately coil windings by one group of connecting line, is fixed with the electric feedback ring that is connected with power feeder in the both sides of commutator segment.
Compared with prior art, advantage of the present utility model is: because this has the circumference outermost portion of brush motor to rotate, require motor circumference outermost portion to rotate like that so be particularly suitable for the use occasion of electric bicycle hub motor, and under the equal volume, because the working rotor radius increases, its operating power is increased, its moment of torsion also increases, operating efficiency also improves, and adopts simple compound commutator, need not electronic commutator, so it is rational in infrastructure simple, make easily, cost is low, is adapted at the use occasion that ask for something motor circumferential section rotates.
Description of drawings
Fig. 1 permanent magnet direct current motor structural representation;
One of structure cutaway view of the compound commutator of Fig. 2;
Two of the structure cutaway view of the compound commutator of Fig. 3;
Fig. 4 is Fig. 3 side direction view.
Embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
As schematically shown in Figure 1, this kind permanent magnet direct current motor, it comprises stationary part and rotor portion, critical piece has motor fixing shaft 1, bearing 2, motor housing 3, electric machine support 4, silicon steel sheet 5, permanent magnet 6, armature winding 7, carbon brush component 8, compound commutator 9 critical pieces such as grade, motor housing 3 is made the drum shape of hollow, the stator of motor is overlapped inside, end, the front and back center fixation of motor housing 3 has bearing 2, be connected with motor fixing shaft 1 by bearing, motor housing 3 the inside circumference are evenly distributed with permanent magnet 6 simultaneously, the permanent magnet of motor housing and its inside has constituted rotor like this, and it can rotate around motor fixing shaft under the excitation of alternating magnetic field.In the motor housing the inside, be fixed with electric machine support 4 on the motor fixing shaft 1, it adopts the steel plate punch forming to form, electric machine support 4 cylindricals are fixed with silicon steel sheet 5, be wound with coil windings on the silicon steel sheet 5, constituted armature winding 7 like this, armature winding 7 also is circularly and evenly distributed, and be fixed on the motor fixing shaft 1, they have constituted the stator of motor, and here, stator is by the effect between commutator and the carbon brush, make the coil windings of stator produce alternating magnetic field, promote the rotation of rotor.Each coil windings is connected with commutator segment by line, and these methods of attachment are the same with traditional motor.Commutator but of the present utility model is to have adopted the simple compound commutator 9 of structure, this compound commutator 9 is fixed on the motor fixing shaft 1, carbon brush component 8 has been fixed in the inside of motor housing 3 simultaneously, commutator segment 91 on carbon brush component 8 and the compound commutator 9 carries out contact matching, motor housing with rotor rotates, piecewise commutator segment 91 is carried out conducting, make the coil windings of stator produce alternating magnetic field.Produce for convenience and install, prevent power line and be intertwined because rotate, compound commutator 9 can adopt column structure, as Fig. 2, one plastic cylinder 94 is fixed on the motor fixing shaft 1, its surperficial circumference is evenly distributed with commutator segment 91, the not conducting of insulating between the commutator segment 91, simultaneously commutator segment 91 is connected with separately coil windings by connecting line 97, relevant method of attachment is with reference to the method for attachment of conventional motors, simultaneously also be fixed with electric feedback ring 92 in the both sides of commutator segment 91,93, electric feedback ring 92,93 respectively with power feeder 95,96 are connected, commutator segment 91 and electric feedback ring 92,93 can adopt copper product to make, and wherein electric feedback ring 92, the 93rd, concentric same radius, axially-aligned, be distributed in the both sides of commutator segment 91, make electric feedback ring be in the both positive and negative polarity of power supply all the time like this, and the carbon brush of carbon brush component 8 to be 180 degree be symmetrical arranged, and certain designed distance that staggers mutually, carbon brush is communicated with corresponding commutator segment 91 respectively with interior electric feedback ring or outer electric feedback ring.Certain compound commutator 9 also can adopt disc structure, as Fig. 3,4, one plastic disc 98 is fixed on the motor fixing shaft 1, disc surfaces is evenly distributed with commutator segment 91 along circumference, the not conducting of insulating between the commutator segment 91, simultaneously commutator segment 91 is connected with separately coil windings by connecting line 97, relevant method of attachment is with reference to the method for attachment of conventional motors, be fixed with electric feedback ring 92 in the both sides of commutator segment, 93, respectively with power feeder 95,96 are connected, commutator segment 91 and electric feedback ring 92,93 can adopt copper product to make, wherein electric feedback ring 92, the 93rd, concentric different radius, arranged radially, be distributed in the inside and outside both sides of commutator segment 91, make electric feedback ring be in the both positive and negative polarity of power supply all the time like this, and the carbon brush of carbon brush component 8 to be 180 degree be symmetrical arranged, certain designed distance that staggers mutually makes carbon brush that corresponding commutator segment is communicated with interior electric feedback ring or outer electric feedback ring respectively.So the compound commutator that the utility model adopted combines electric feedback ring and common commutator exactly, make electric feedback ring play the effect of power ring, solve the coil windings connecting line easily and twined problem.
The operation principle of permanent magnet direct current motor is as follows: when motor is connected with the mains, make the electric feedback ring 92 of compound commutator by carbon brush component 8 on the rotor electric machine shell 3,93 contact conductings with the commutator segment 91 that corresponding 180 degree stagger respectively, make the corresponding coil windings that is fixed on the stator connect generating positive and negative voltage, make them produce alternating magnetic field, permanent magnet 6 in the rotor electric machine shell is under alternating magnetic field promotes, and begin to rotate, thereby driving motor housing 3 rotates around motor fixing shaft 1, and motor housing 3 rotations drive carbon brush component 8 rotations, carbon brush is with the electric feedback ring 92 on the compound commutator 9 like this, 93 contact conducting piecewise with corresponding commutator segment 91, to make the corresponding coil windings that is fixed on the stator connect generating positive and negative voltage successively, make them produce alternating magnetic field, the permanent magnet 6 that the rotor electric machine shell is 3 li is under alternating magnetic field promotes, constantly rotate, just produced the continuous rotation phenomenon of motor housing rotor.
Claims (6)
1, a kind of permanent magnet direct current motor, it includes stationary part and rotor portion, it is characterized in that motor fixing shaft (1) is fixed with by electric machine support (4) is circle distribution armature winding (7) as stator, be provided with compound commutator (9) on the stator, motor fixing shaft (1) is fixed with motor housing (3) by bearing (2) simultaneously, motor housing (3) the inside circle distribution has permanent magnet (6) as rotor, and motor housing (3) lining also is fixed with the carbon brush component (8) of the commutator segment on the compound commutator (91) with electric feedback ring (92,93) conducting piecewise.
2, motor according to claim 1, it is characterized in that described compound commutator (9) adopts column structure, the surperficial circumference of cylinder (94) that is fixed on the motor fixing shaft is evenly distributed with commutator segment (91), the not conducting of insulating between the commutator segment (91), simultaneously commutator segment (91) is connected with separately coil windings by one group of connecting line (97), is fixed with the electric feedback ring (92,93) that is connected with power feeder (95,96) in the both sides of commutator segment.
3, motor according to claim 1, it is characterized in that described compound commutator (9) adopts disc structure, the surperficial circumference of disk (98) that is fixed on the motor fixing shaft is evenly distributed with commutator segment (91), the not conducting of insulating between the commutator segment, simultaneously commutator segment (91) is connected with separately coil windings by one group of connecting line (97), is fixed with the electric feedback ring (92,93) that is connected with power feeder (95,96) in the both sides of commutator segment.
4, motor according to claim 1 is characterized in that described armature winding (7) constitutes by electric machine support cylindrical silicon steel sheet (5) upper fixed line circle winding, and is circularly and evenly distributed.
5, motor according to claim 1 is characterized in that described permanent magnet (6) is to be circularly and evenly distributed, and carbon brush component (8) is in the motor housing (3) that is fixed on as rotor.
6, motor according to claim 1 is characterized in that described motor housing (3) makes the drum shape of hollow, and the bearing (2) that cooperates with motor fixing shaft is arranged in the end center fixation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03228474 CN2620422Y (en) | 2003-01-27 | 2003-01-27 | Permanent magnet dc motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03228474 CN2620422Y (en) | 2003-01-27 | 2003-01-27 | Permanent magnet dc motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2620422Y true CN2620422Y (en) | 2004-06-09 |
Family
ID=34247118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03228474 Expired - Fee Related CN2620422Y (en) | 2003-01-27 | 2003-01-27 | Permanent magnet dc motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2620422Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109398104A (en) * | 2018-10-16 | 2019-03-01 | 鹤壁市科技创新研究院 | A kind of automated electricity generation driving vehicle |
-
2003
- 2003-01-27 CN CN 03228474 patent/CN2620422Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109398104A (en) * | 2018-10-16 | 2019-03-01 | 鹤壁市科技创新研究院 | A kind of automated electricity generation driving vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4527329B2 (en) | Electric machine | |
| CN103370852A (en) | Electric motor | |
| US20170054336A1 (en) | Axial gap motor | |
| CN1549432A (en) | Axial gap brushless DC motor | |
| CN101030712A (en) | Low-speed DC direct-driven brushless motor with segmented modularized stator structure | |
| WO1998000902A1 (en) | Electronically commutated motor for direct drive of washing machine drum | |
| CN201877987U (en) | Brushless direct current motor for drum type washing machine | |
| CN101702558A (en) | Disk type permanent magnet wind-driven generator | |
| CN103762793B (en) | A kind of electronic transport van drive motors radial permanent magnet method for production of rotor | |
| CN1091321C (en) | Disk-type permanent-magnet electric machine with stepless speed regulation | |
| CN2620422Y (en) | Permanent magnet dc motor | |
| CN104505961B (en) | A kind of outer rotor dynamotor | |
| CN100525021C (en) | Coreless motor | |
| CN103532268B (en) | With the permanent magnet generator of vacuum pump | |
| CN209730938U (en) | A kind of drum type brake DC vibration motor | |
| CN202076916U (en) | Permanent magnet direct current brushless motor used for electric vehicles | |
| CN101009448A (en) | Dual rotor DC speed difference motor | |
| CN208835976U (en) | A kind of brushless single phase motor | |
| CN2777836Y (en) | Permanent magnet CD non-commutation motor | |
| CN103501092B (en) | Vehicle electric exciting brushless generator | |
| CN2528154Y (en) | Electromagnet type DC dynamo | |
| CN201937428U (en) | Novel electric moped motor | |
| CN105915002A (en) | Tangential and radial resultant magnetic field permanent magnet generator with vacuum pump | |
| CN2833990Y (en) | Novel high-efficiency permanent magnetic DC motor | |
| CN2412788Y (en) | Brushless DC motor for vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |