CN204707014U - Coreless permanent magnet motor - Google Patents
Coreless permanent magnet motor Download PDFInfo
- Publication number
- CN204707014U CN204707014U CN201520323453.8U CN201520323453U CN204707014U CN 204707014 U CN204707014 U CN 204707014U CN 201520323453 U CN201520323453 U CN 201520323453U CN 204707014 U CN204707014 U CN 204707014U
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- stator
- permanent magnet
- rotor
- magnetic
- controller
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Abstract
Coreless permanent magnet motor, is made up of stator, rotor, bearing, controller and transducer.Stator has some groups around the solenoid outside non magnetic insulating core, and the end face of solenoid along the circumferential direction, stator is also arranged two and starts electromagnet; Form many pole wheels by rotating shaft, non-magnetic insulator and some permanent magnets, non-magnetic insulator and permanent magnet circumferentially interleaved are arranged, permanent magnet along the circumferential direction magnetizes, and adjacent permanent magnet like pole is relative.Rotor is contained in stator, and the two is coaxial, and the two does not contact, and rotor and stator are contacted by bearing.The rotatable parts of one end connecting sensor of armature spindle, the stationary parts of transducer is connected in described stator.Stator electromagnet coil, startup electromagnet, transducer are all connected with controller, controller external power supply.Iron-core less motor work time, make full use of permanent magnetic, almost without magnetic hysteresis loss, without eddy current loss, so energy-conservation, efficient.
Description
Technical field
The utility model relates to a kind of motor, particularly a kind of coreless permanent magnet motor.
Background technology
Magneto has the advantages such as higher than traditional electric efficiency, loss is little, volume is little, but cored in magneto, and iron core has hysteresis effect, also can produce eddy current, and this certainly will want consumes energy, so magneto energy-saving effect is not remarkable.Permanent magnet in magneto is mainly used to excitation, and the utilance of permanent magnetism muscle power is very low.How fully improving the utilance of permanent magnetic, is the key subjects of modern science and technology.
Summary of the invention
The utility model designs a kind of coreless permanent magnet motor, and object fully effectively utilizes permanent magnetic, thus provides a kind of energy consumption little and the power source of environmental protection.
The utility model realizes by following technical proposals.
The utility model is made up of stator, rotor, bearing, controller and transducer.Stator has some groups around the solenoid outside non magnetic insulating core, and the end face of solenoid along the circumferential direction, stator is also arranged two and starts electromagnet; Form many pole wheels by rotating shaft, non-magnetic insulator and some permanent magnets, non-magnetic insulator and permanent magnet circumferentially interleaved are arranged, permanent magnet along the circumferential direction magnetizes, and adjacent permanent magnet like pole is relative.Rotor is contained in stator, and the two is coaxial, and the two does not contact, and rotor and stator are contacted by bearing.The rotatable parts of one end connecting sensor of armature spindle, the stationary parts of transducer is connected in described stator.Stator electromagnet coil, startup electromagnet, transducer are all connected with controller, controller external power supply.Controller measures the position signalling of rotor magnetic pole relative to the magnetic pole of stator electromagnet coil according to transducer, respectively organize solenoid interval then to stator and replace the electric current leading to different directions, then rotor is subject to the attraction moment of the magnetic pole of stator electromagnet coil because of its permanent-magnet pole and repels moment and rotate, thus outside power output.
Suppose that the rotor pure soft iron of the rotor in described coreless permanent magnet motor being made some teeth replaces, so its operation principle is very similar to switched reluctance machines, disregards loss, and switched reluctance machines exports the electric energy that energy equals to input, not energy-conservation.And the utility model rotor permanent magnet pole is obtained simultaneously repulsion square that stator electromagnetic pole attracts moment and another electromagnetic pole of stator, and gravitation square or repulsion square provide jointly by electromagnetic field and permanent magnetic field; Switched reluctance machines is only the soft iron tooth of its rotor of electromagnetic attracting force of stator tooth, and this gravitation is only provided by electromagnetic field.Square being directly proportional of the electromagnetic pole of the utility model stator and amount of force between rotor permanent magnet pole and the magnetic flux density in gap between which, and this magnetic flux density value is the superposition value of electromagnetic pole and permanent-magnet pole magnetic flux density, if keep this value constant, improve the magnetic flux density value of permanent-magnet pole in described gap, reduce the magnetic flux density value of electromagnetic pole in described gap equally, can required electric power be reduced.So described coreless permanent magnet motor is obviously more energy-conservation than switched reluctance machines.
It should still be noted that, structure of the present utility model and operation principle and magneto (understand in detail can with reference to interrelated data) have substantial different, magneto utilizes the rotary electromagnetic field of stator to interact with the rotor field containing permanent magnet and drives rotor, be based on electromagnetic induction principle, and the utility model is based on the gravitation between electromagnet and permanent magnet and repulsion.Permanent magnet motor stator electromagnetic force and rotor permanent magnet power are not so good as greatly of the present utility model to the torque that its rotor produces, reason is that this stator electromagnet power only produces gravitation square to rotor, and the utility model rotor permanent magnet pole is subject to the attraction moment of the electromagnetic pole of stator tooth simultaneously and repels moment.The rotary electromagnetic field of permanent magnet motor stator can induce eddy current and cause energy loss in rotor core and permanent magnet, and eddy current heat-dissipating works the mischief, and rotary electromagnetic field also can produce magnetic hysteresis loss in rotor core.And the magnetic line of force that stator field of the present utility model enters rotor is little, respond to very weak in the rotor.So described coreless permanent magnet motor is energy-conservation also more remarkable than magneto.
The effect that the utility model is useful is:
1, the utility model makes full use of the magnetic force of permanent magnet, so power consumption is little, loss is little, ultrahigh in efficiency, energy-conservation, and thus operating cost is very low;
2, the utility model, does not produce pernicious gas, and noise is little, generates heat less.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the A-A profile of Fig. 1;
Fig. 3 is the position view after the utility model start-up course rotor turns over an angle;
Fig. 4 is the schematic diagram of Fig. 3 rotor when forwarding permanent magnet and stator electromagnet coil in alignment to.
Further the utility model is described in detail below in conjunction with embodiment.
Embodiment
As Fig. 1 Fig. 2 shows.Stator forms: support 1 and non magnetic circular casing 7 cylindrical connect, solenoid 18 is wound on the annular groove place of non magnetic insulation ring core 8, non magnetic insulation ring core 8 is connected in the middle part of casing 7 inwall, non magnetic insulation ring core 8 is concentric with casing 7, solenoid 18 has some groups, radially be symmetrical arranged No. one at casing 7 inwall and start electromagnet 21 and No. two startup electromagnets 22, left bearing outer ring 6 is contained in the middle part of left end cap 2, right bearing outer ring 9 is contained in the middle part of right end cap 10, and left end cap 2, right end cap 10 connect with the left side of casing 7, right side respectively.Rotor forms: spline shape non-magnetic insulator 19 is solidly set on outside rotating shaft 5; The permanent magnet 20 along the circumferential direction magnetized has several, and each permanent magnet 20 correspondence embeds a groove of non-magnetic insulator 19, and adjacent permanent magnet 20 like pole is relative, from Fig. 1, and the recessed formation annular groove in middle part of permanent magnet 20 and non-magnetic insulator 19; Left non magnetic end plate 3 and the non magnetic end plate 17 in the right side are clamped and connect the end face of permanent magnet 20, non-magnetic insulator 19; Left bearing inner ring 4, right bearing inner ring 11 are enclosed within rotating shaft 5 left part, right part respectively.Described rotor is contained in described stator, solenoid 18 and non magnetic insulation ring core 8, leave a gap in the annular groove being in the recessed formation in middle part of permanent magnet 20 and non-magnetic insulator 19, described rotor not with described stator contact, rotor and stator are contacted by the Internal and external cycle of described bearing.
At the rotating disk 12 of one end connecting sensor of rotating shaft 5, the sensing head 15 of transducer is fixed on right end cap 10 with support plate 16, transducer be photoelectric type or Hall type or electromagnetic type or other form; The lead-in wire 18-1 of solenoid 18 is connected with controller 14, and the sensing head 15 of transducer is connected with controller 14 with wire 13, and No. one starts No. 21, two, electromagnet startup electromagnet 22 and is all connected with controller 14; Controller 14 external power supply.The other end of rotating shaft 5 can install power output wheel.
Fig. 2 is the A-A profile of Fig. 1, is also a kind of halted state schematic diagram of rotor.As Fig. 2 shows, when rotor is at this stop position, and permanent magnet 20 faces solenoid 18.To start, first given by controller 14 and start electromagnet 21 and start electromagnet 22 energising magnetization, there is magneticaction with rotor permanent magnet 20, rotor is made to turn over an angle (as Fig. 3 shows), after permanent magnet 20 just staggers with the end face of solenoid 18, controller 14 makes startup electromagnet 21 and starts electromagnet 22 power-off.Then, controller 14 leads to positive direction electric current to solenoid 18, each group of solenoid 18 pairs of rotor permanent magnets are made to produce electromagnetism push-and-pull moment, rotor inhour is rotated, to solenoid 18 power-off when forwarding tiny time (this time value is larger than the time constant of solenoid 18) before position shown in Fig. 4 to, after power-off in this tiny time, due to self inductance effect, the polarity of solenoid 18 remains unchanged as Fig. 3 shows.When rotor with inertia inhour turn to permanent magnet 20 just and solenoid 18 staggers time, position as shown in Figure 4, solenoid 18 logical electric current in the other direction again given by controller 14, makes the polarity of solenoid 18 become as Fig. 4 shows, so, electromagnetism push-and-pull moment continues rotor inhour is rotated.Above process repetitive cycling, rotor will continuous outwards power output.As for controller 14 when give solenoid 18 logical where to electric current? when does controller 14 give solenoid 18 power-off? the rotor-position signal that controller 14 transmits according to the sensing head 15 of identification transducer is implemented.Controller 14 also can the size of electric current in control coil 18 to change the power output of rotating shaft 5.If rotor stops at except other position shown in Fig. 2, can be energized directly to solenoid 18 and start running.After described coreless permanent magnet motor starts, the rotation direction of rotor is determined by the sense of current in controller 14 control coil 18.
Claims (2)
1. coreless permanent magnet motor, is characterized in that: be made up of stator, rotor, bearing, controller and transducer; Stator has some groups around the solenoid outside non magnetic insulating core, and the end face of solenoid along the circumferential direction, stator is also arranged two and starts electromagnet; Form many pole wheels by rotating shaft, non-magnetic insulator and some permanent magnets, non-magnetic insulator and permanent magnet circumferentially interleaved are arranged, permanent magnet along the circumferential direction magnetizes, and adjacent permanent magnet like pole is relative; Rotor is contained in stator, and the two is coaxial, and the two does not contact, and rotor and stator are contacted by bearing; The rotatable parts of one end connecting sensor of armature spindle, the stationary parts of transducer is connected in described stator; Stator electromagnet coil, startup electromagnet, transducer are all connected with controller, controller external power supply.
2. coreless permanent magnet motor according to claim 1, is characterized in that:
Stator forms: support (1) and non magnetic circular casing (7) cylindrical connect, solenoid (18) is wound on the annular groove place of non magnetic insulation ring core (8), non magnetic insulation ring core (8) is connected in the middle part of casing (7) inwall, non magnetic insulation ring core (8) is concentric with casing (7), solenoid (18) has some groups, radially be symmetrical arranged No. one at casing (7) inwall and start electromagnet (21) and No. two startups electromagnet (22), left bearing outer ring (6) is contained in left end cap (2) middle part, right bearing outer ring (9) is contained in right end cap (10) middle part, left end cap (2), right end cap (10) respectively with the left side of casing (7), right side connects, rotor forms: spline shape non-magnetic insulator (19) is solidly set on rotating shaft (5) outward, the permanent magnet (20) along the circumferential direction magnetized has several, each permanent magnet (20) correspondence embeds a groove of non-magnetic insulator (19), and adjacent permanent magnet (20) like pole is relative, the recessed formation annular groove in middle part of permanent magnet (20) and non-magnetic insulator (19), left non magnetic end plate (3) and the non magnetic end plate in the right side (17) are clamped and connect the end face of permanent magnet (20), non-magnetic insulator (19), left bearing inner ring (4), right bearing inner ring (11) are enclosed within rotating shaft (5) left part, right part respectively, described rotor is contained in described stator, solenoid (18) and non magnetic insulation ring core (8), leave a gap in the annular groove being in the recessed formation in middle part of permanent magnet (20) and non-magnetic insulator (19), described rotor not with described stator contact, rotor and stator are contacted by the Internal and external cycle of described bearing,
At the rotating disk (12) of one end connecting sensor of rotating shaft (5), the sensing head (15) of transducer is fixed on right end cap (10) with support plate (16), transducer be photoelectric type or Hall type or electromagnetic type or other form; The lead-in wire (18-1) of solenoid (18) is connected with controller (14), the sensing head (15) of transducer is connected with controller (14) with wire (13), and No. one starts electromagnet (21), No. two startups electromagnet (22) are all connected with controller (14); Controller (14) external power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520323453.8U CN204707014U (en) | 2015-05-20 | 2015-05-20 | Coreless permanent magnet motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520323453.8U CN204707014U (en) | 2015-05-20 | 2015-05-20 | Coreless permanent magnet motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204707014U true CN204707014U (en) | 2015-10-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520323453.8U Expired - Fee Related CN204707014U (en) | 2015-05-20 | 2015-05-20 | Coreless permanent magnet motor |
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| Country | Link |
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| CN (1) | CN204707014U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107350235A (en) * | 2016-05-10 | 2017-11-17 | 中国石油化工股份有限公司 | A kind of batch (-type) wiper |
| CN109067252A (en) * | 2018-09-29 | 2018-12-21 | 成都酷卓生命科技有限公司 | A kind of magnetic commutation retaining mechanism |
-
2015
- 2015-05-20 CN CN201520323453.8U patent/CN204707014U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107350235A (en) * | 2016-05-10 | 2017-11-17 | 中国石油化工股份有限公司 | A kind of batch (-type) wiper |
| CN109067252A (en) * | 2018-09-29 | 2018-12-21 | 成都酷卓生命科技有限公司 | A kind of magnetic commutation retaining mechanism |
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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: 20151014 Termination date: 20160520 |