CN201518447U - Switched reluctance motor - Google Patents
Switched reluctance motor Download PDFInfo
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- CN201518447U CN201518447U CN2009202383883U CN200920238388U CN201518447U CN 201518447 U CN201518447 U CN 201518447U CN 2009202383883 U CN2009202383883 U CN 2009202383883U CN 200920238388 U CN200920238388 U CN 200920238388U CN 201518447 U CN201518447 U CN 201518447U
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- laminated stator
- reluctance machines
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Abstract
The utility model relates to the field of design of electrical motors, and discloses a switched reluctance motor (SRM). The motor comprises a lamination rotor, a lamination stator , a rear end cover, a winding, a front end cover and an output shaft, wherein rivets penetrate through the lamination rotor axially, welded joints are formed on the periphery of the lamination rotor, and the lamination rotor becomes a complete rigid body through the welding of the welded joints; the lamination stator is arranged on the periphery of the lamination rotor, rivets penetrate through the lamination stator axially, welded joints are formed on the periphery of the lamination stator, and the lamination rotor becomes a complete rigid body through the welding of the welded joints; the rear end cover is fixed at the rear end part of the lamination stator, and a position sensor is arranged in the inner chamber of the rear end cover; the winding is only wound on the lamination stator, and the coil winding outlet part of the winding is arranged on the peripheral side of the rear end cover; the front end cover is fixed at the front end part of the lamination stator; and the output shaft is connected with the bearing of the lamination rotor and penetrates the front end cover. The utility model has reduced magnetic reluctance and higher energy efficiency.
Description
Technical field
The utility model relates to the design of electrical motor field, relates in particular to a kind of switched reluctance machines.
Background technology
Switched reluctance machines (Switched Reluctance Motor is called for short SR) is risen in Britain.Britain Leeds (lining now) university in 1967 and NottinGham (Ruo Dinghan) university begin switched reluctance motor is studied.Above-mentioned two university research groups united the research work of having participated in Britain Chlo-ridaTrchnical Co., Ltd research and development manufacturing battery driven vehicle drive unit in 1975.Successfully develop 50KW, a SRD device that is used for electric automobile.Its unit capacity all is higher than similar Asynchronous Motor Driving device with efficient.
The Lawrenson professor and the colleagues thereof of Britain Leeds (lining now) university in 1980 have summed up their achievement in research, deliver famous paper " varying speed switch reluctance motor " and indicate that SRD formally obtains the approval of international community.This article takes the lead in this term of " switched reluctance " (Switched Reluctance) is used for radial air gap electric motor, formulate the principle and the design theory of SR motor.The characteristic and the control mode of switched reluctance motor have been studied.These are known as the work of laying a foundation of switched reluctance motor research by International Power circle.
Britain TASC Drive E Co., Ltd released in 1983～1985 years: 4～22KW switched reluctance machines was put on market, developed 1～5.5KW switched reluctance machines model machine again in 1986, and is very big to the influence of International Power circle.
Switched reluctance machines has two essential characteristics:
1, switch, motor must operate under a kind of continuous switching mode state, and this is because obtain the main cause that this motor in development back is just developed at various novel power semiconductors.
2, magnetoresistive, it is real reluctance motor, fixed (commentaries on classics) son all has the variable reluctance loop, or rather, is a kind of concave-concave utmost point motor.
Switched reluctance machines is different from AC induction motor, also be different from brush is arranged, brshless DC motor, switched reluctance machines is the very large Novel DC motor of energy-saving effect.
These above-mentioned advantages make switched reluctance machines not be only applicable to the requirement of electric motor car " four-quadrant " operation and in many potential applications, and in various speed governing and the high efficiency occasions of needing, no matter watt level all can provide the desired properties requirement.
The present application people finds that under study for action also there is following defective in existing switched reluctance machines:
1, existing model machine has shell and radiator fan by the traditional theory design, influences the installation of transducer;
2, transducer all adopts traditional photo resistance transducer, and motor uses limited, and cost is higher;
3, the motor front and rear cover all adopts the ferrous metal manufacturing, causes magnetic resistance in the course of the work easily;
4, winding is the not high enamelled wire of temperature resistant capability with line, and the in use easy short circuit of motor burns out;
5, motor gas-gap is bigger; Torsion output is limited.
The utility model content
The utility model first purpose is to provide a kind of switched reluctance machines, and its magnetic resistance is littler, and efficiency is bigger.
A kind of switched reluctance machines that the utility model embodiment provides comprises:
Lamination armature has a rivet in the riveted joint that axially runs through of described lamination armature, is provided with soldered in the periphery of described lamination armature, by making described lamination armature become complete rigid body in described soldered welding;
Be arranged on the laminated stator of described lamination armature periphery, rivet arranged, be provided with soldered in the periphery of described laminated stator, by making described laminated stator become complete rigid body in described soldered welding in the riveted joint that axially runs through of described lamination armature;
Be fixed on the rear end cap of described laminated stator rearward end, in the inner chamber of described rear end cap, be provided with position transducer;
Only be wrapped in the winding on the described laminated stator, the coiling outlet position of described winding is arranged on the outer circumferential side of described rear end cap;
Be fixed on the front end housing of described laminated stator leading section,
With the output shaft that described lamination armature bearing is connected, described output shaft runs through described front end housing.
Alternatively, described rotor adopts soft magnetic material to make.
Alternatively, described position transducer is a hall element sensor,
At least three signal sources of described hall element sensor are in the inner chamber that is symmetrically distributed in described rear end cap.
Alternatively, in the inner chamber of described rear end cap, be provided with position transducer, specifically be,
Described position transducer is arranged in the profile chamber of described rear end cap.
Alternatively, described rear end cap and/or front end housing are made by aluminum alloy materials.
Alternatively, the envelope curve of each coiling of described winding is: flat double fibre glass-covered wire.
Alternatively, the cooperation air gap between described lamination armature, the laminated stator is less than or equal to 0.5 millimeter more than or equal to 0.45 millimeter.
Alternatively, the polar arc degree of described lamination armature, laminated stator all is not less than 21 degree and is not more than 23 degree.
Alternatively, described bearing adopts babbit to make, and described babbit contains lubricating oil,
Described bearing is a sliding bearing.
Alternatively, the periphery of described laminated stator does not have shell.
Therefore, use the technical scheme of the utility model embodiment, in the lamination design of lamination armature, laminated stator, all adopt a plurality of rivets to run through the mode of riveting and welding, can reduce between the lamination between the lamination in the laminated stator, in the lamination armature and the air gap between each lamination of lamination armature and laminated stator, reduce the magnetic resistance between them, help improving the efficiency of motor, reduce the noise of switched reluctance machines.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present utility model, constitutes the application's a part, does not constitute to improper qualification of the present utility model, in the accompanying drawings:
The main body cross-sectional view of a kind of switched reluctance machines that Fig. 1 provides for the utility model embodiment 1;
Fig. 2 is the structural representation of the laminated stator among the utility model embodiment 1 Fig. 1;
Fig. 3 is the structural representation of the lamination armature among the utility model embodiment 1 Fig. 1.
Embodiment
Describe the utility model in detail below in conjunction with accompanying drawing and specific embodiment, be used for explaining the utility model in this illustrative examples of the present utility model and explanation, but not as to qualification of the present utility model.
Embodiment 1:
Referring to shown in Figure 1, a kind of switched reluctance machines that present embodiment provides mainly comprises: lamination armature 101, laminated stator 102, rear end cap 103, front end housing 104, winding (not drawing among the figure), bearing 105, output shaft 106.Wherein the annexation of each several part is mainly as follows:
Laminated stator 102 specifically is to be superimposed together by a plurality of laminations (being such as but not limited to silicon steel sheet) to form a whole formation stator 102.Lamination armature 101 specifically is to be superimposed together by a plurality of laminations (can select conventional permanent magnetic material for use, but preferred in the present embodiment soft magnetic material being such as but not limited to silicon steel sheet) to form a whole formation rotor 101.
Referring to shown in Figure 2, in the present embodiment in order to reduce the magnetic resistance of this motor, improve efficiency, in the present embodiment, running through riveted joint on lamination armature 101 has at least one rivet 201, and the outer end of each rivet 201 is riveted on the end of lamination armature 101, after combination each lamination is firm by rivet 201 is overlapping, be reserved with soldered 202 around the lamination armature 101 after overlapping, on this soldered, weld and lamination armature 101 can be welded into a complete rigid body.Mode by this riveted joint, welding makes lamination armature 101 firm tightly linking together, and makes lamination more firm.Help avoiding: in the process of work,, make that the magnetic resistance that produces between lamination is increasing owing to vibration makes that the lamination air gap of lamination armature 101 is increasing, thus the more and more lower problem of the efficiency of motor.
In the present embodiment, the preferred soft magnetic materials that adopt of lamination armature 101 are made, and only make that when work, lamination armature 101 just is magnetized under the effect in the magnetic field that winding produces and has magnetic, and nonmagnetic fully when inoperative.With respect to the permanent magnetic material that generally adopts in the prior art, adopt soft magnetic material can avoid the phenomenon of magnetic hysteresis, the magnetic hysteresis magnetic field that can avoid lamination armature 101 magnetic field cancellation that winding is responded to during with work at present and cause the low problem of motor usefulness.
Referring to shown in Figure 3, design in like manner with the lamination of lamination armature 101, in the present embodiment in order to reduce the magnetic resistance of this motor, improve efficiency, on laminated stator 102, run through riveted joint at least one rivet 301 is arranged, the end, outer end of each rivet 301 is riveted on the end of lamination armature 101, after combination each lamination is firm by rivet 301 is overlapping, be reserved with soldered 302 around the laminated stator 102 after overlapping, on this soldered, weld and laminated stator 102 can be welded into a complete rigid body.Mode by this riveted joint, welding is tightly fixed together each lamination, make that the lamination of whole laminated stator 102 is more firm, help avoiding: in the process of work, make that owing to vibrating the lamination air gap (air gap) of laminated stator 102 is increasing, make that the magnetic resistance that produces between lamination is increasing, thus the more and more lower problem of the efficiency of motor.
To sum up, in the lamination design of lamination armature 101, laminated stator 102, all adopt a plurality of rivets in end (301,201) to run through the mode of riveting, periphery welding, can reduce between the lamination in the laminated stator 102, between the lamination in the lamination armature 101 and the magnetic resistance of 102 of lamination armature 101 and laminated stators, help improving the efficiency of motor, and help reducing the noise of switched reluctance machines, the noise of switched reluctance machines that experiment showed, present embodiment is less than 70 decibels of motor international standard regulation.
In the present embodiment, because laminated stator 102, the lamination of lamination armature 101 has fixedly adopted the end to run through riveted joint rivet (301,201), the fixing double fixed mode of periphery integral solder can make laminated stator 102, lamination armature 101 keeps a firm structure, Gu in the present embodiment, can abandon the shell that is used for fixing laminated stator 102 in the prior art, and do not adopt the shell parcel in the periphery of motor, install radiator additional, the design of fan, and make the periphery of laminated stator 102 directly exposed, thereby make that the heat dispersion of motor is better, can reduce cost again.
In the cooperation of lamination armature 101, laminated stator 102, present embodiment is preferably designed to, and the monolateral air gap d between lamination armature 101, the laminated stator 102 is controlled in the following scope: 0.45mm≤d≤0.5mm.Experiment showed, that this cooperation kind of air-gap design had both guaranteed the realization of producing, can improve effective torsion of motor again greatly.
In order to make the magnetic line of force effectively distribute, through experimental results demonstrate of the inventor, the polar arc degree R of lamination armature 101, laminated stator 102 is designed to: 21 °≤R≤23 °, can make that when zero load, load, the mechanokinetic uniformity coefficient of this motor output meets the design of electrical motor industrial standard.
Front end housing 104 is fixed on the front end housing 104 of laminated stator 102 leading sections by screw 1041 (perhaps rivet), and this front end housing 104 is from front end encapsulation lamination armature 101, laminated stator 102.Output shaft 106 is connected with lamination armature 101 by bearing 105, and this output shaft 106 rotates under the drive of lamination armature 101, externally exports machine power.
Wherein, in order to improve the efficiency of motor, present embodiment can but be not limited to choose the oil-containing sliding bearing 105 that babbit is made, this bus alloy is soaked lubricating oil, make lubricating oil enter the babbit inner ear and play lasting lubrication, and, adopt oil-containing sliding bearing 105 to substitute conventional rolling bearings 105, can improve motor and make bearing capacity at high speed rotating.
Rear end cap 103 is fixed on the rearward end of laminated stator 102 by hold-down screw 1031 (perhaps rivet), from rear end encapsulation laminated stator 102, lamination armature 101, in the inner chamber of rear end cap 103, be provided with position transducer 108, this position transducer 108 is surveyed the rotational angle of stator 102, thereby send it to controller, by the electric current of controller according to result of detection control winding.
Wherein, this position transducer 108 can but be not limited to specifically be arranged in the profile chamber of rear end cap 103, make detector maintenance, adjust convenient.
In addition, this position transducer 108 can but be not limited to select for use hall element sensor 108, a plurality of at least signal sources of this hall element sensor 108 are symmetrical distribution (such as hexagonal circle distribution etc.) in the profile chamber of this rear end cap 103.Select for use Hall element 108 as position transducer 108 at this, it is with respect to adopting photoresistance cell as transducer 108 in existing, can improve the sensitivity and the reliability of transducer 108 greatly, better adaptation special bus bad working environments is used to make this motor.And the symmetrical distribution of its signal source can help improving the accuracy of the position of induction.
In addition, in order further to reduce the influence of magnetic hysteresis to the motor efficiency, the rear end cap 103, the front end housing 104 that are arranged on laminated stator 102 rear ends, front end do not adopt black cast steel, and adopt aluminum alloy materials to make.
The main function components winding of this motor only is wrapped on the laminated stator 102, the outlet position 107 of this winding is arranged on the outer circumferential side of rear end cap 103, its outlet method can be designed to different modes according to application scenarios, such as being 5 line systems (4 advance 1 goes out), 6 line systems (4 advance 2 goes out), 8 line systems (4 advance 4 goes out).Respectively outlet is electrically connected with the controller of this motor and forms closed loop work loop, under the control of controller, carry out current conversion, thereby produce magnetic field by current conversion, produce in the magnetic at lamination armature under the effect in magnetic field 101, and twist, export machine powers by bearing 105 to output shaft 106.
In addition, all preferred coiling of adopting flat double fibre glass-covered wire of each coiling of the winding of present embodiment makes the temperature resistant capability of coiling improve greatly, helps avoiding in the course of the work envelope curve to be burnt out and causes problem of short-circuit.
Experimental results show that, the effective flux of the switched reluctance machines of present embodiment is greater than the conventional magnetic flux of ordinary tap reluctance motor in the prior art, the magnetic flux of the switched reluctance machines of present embodiment can reach following requirement: 8000 Gausses＜φ≤16000 Gausses, through unloaded, load testing, under this magnetic flux, this motor all can stable operation, and output is greatly greater than the output mechanical power of prior art switching magnetic-resistance.
To sum up, the switched reluctance machines of employing present embodiment not only power improves greatly with respect to equal existing switched reluctance machines, and does not almost have magnetic resistance, and efficiency is higher, and noise is littler, to the almost no-harmonic wave pollution and the magnetic disturbance of electrical equipment of outside.
More than technical scheme that the utility model embodiment is provided be described in detail, used specific case herein principle and the execution mode of the utility model embodiment are set forth, the explanation of above embodiment only is applicable to the principle that helps to understand the utility model embodiment; Simultaneously, for one of ordinary skill in the art, according to the utility model embodiment, the part that on embodiment and range of application, all can change, in sum, this description should not be construed as restriction of the present utility model.
Claims (10)
1. a switched reluctance machines is characterized in that, comprising:
Lamination armature has a rivet in the riveted joint that axially runs through of described lamination armature, is provided with soldered in the periphery of described lamination armature, by making described lamination armature become complete rigid body in described soldered welding;
Be arranged on the laminated stator of described lamination armature periphery, rivet arranged, be provided with soldered in the periphery of described laminated stator, by making described laminated stator become complete rigid body in described soldered welding in the riveted joint that axially runs through of described lamination armature;
Be fixed on the rear end cap of described laminated stator rearward end, in the inner chamber of described rear end cap, be provided with position transducer;
Only be wrapped in the winding on the described laminated stator, the coiling outlet position of described winding is arranged on the outer circumferential side of described rear end cap;
Be fixed on the front end housing of described laminated stator leading section,
With the output shaft that described lamination armature bearing is connected, described output shaft runs through described front end housing.
2. a kind of switched reluctance machines according to claim 1 is characterized in that,
Described rotor adopts soft magnetic material to make.
3. a kind of switched reluctance machines according to claim 1 is characterized in that,
Described position transducer is a hall element sensor,
At least three signal sources of described hall element sensor are in the inner chamber that is symmetrically distributed in described rear end cap.
4. a kind of switched reluctance machines according to claim 1 is characterized in that,
In the inner chamber of described rear end cap, be provided with position transducer, specifically be,
Described position transducer is arranged in the profile chamber of described rear end cap.
5. according to arbitrary described a kind of switched reluctance machines of claim 1 to 4, it is characterized in that,
Described rear end cap and/or front end housing are made by aluminum alloy materials.
6. according to arbitrary described a kind of switched reluctance machines of claim 1 to 4, it is characterized in that,
The envelope curve of each coiling of described winding is: flat double fibre glass-covered wire.
7. according to arbitrary described a kind of switched reluctance machines of claim 1 to 4, it is characterized in that,
Cooperation air gap between described lamination armature, the laminated stator is less than or equal to 0.5 millimeter more than or equal to 0.45 millimeter.
8. according to arbitrary described a kind of switched reluctance machines of claim 1 to 4, it is characterized in that,
The polar arc degree of described lamination armature, laminated stator all is not less than 21 degree and is not more than 23 degree.
9. according to arbitrary described a kind of switched reluctance machines of claim 1 to 4, it is characterized in that,
Described bearing adopts babbit to make, and described babbit contains lubricating oil,
Described bearing is a sliding bearing.
10. according to arbitrary described a kind of switched reluctance machines of claim 1 to 4, it is characterized in that,
The periphery of described laminated stator does not have shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202383883U CN201518447U (en) | 2009-11-03 | 2009-11-03 | Switched reluctance motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202383883U CN201518447U (en) | 2009-11-03 | 2009-11-03 | Switched reluctance motor |
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| CN201518447U true CN201518447U (en) | 2010-06-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009202383883U Expired - Fee Related CN201518447U (en) | 2009-11-03 | 2009-11-03 | Switched reluctance motor |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102347675A (en) * | 2010-07-29 | 2012-02-08 | 天津市松正电动科技有限公司 | Switch magnetic resistance motor rotor structure |
| CN105262274A (en) * | 2015-09-28 | 2016-01-20 | 台州市大泰机电有限公司 | Vehicle double-motor power device |
| CN105743315A (en) * | 2016-03-31 | 2016-07-06 | 湘潭市电机车厂有限公司 | Novel switch reluctance motor for mine narrow-gauge locomotive |
| CN106329860A (en) * | 2015-07-09 | 2017-01-11 | 深圳市风发科技发展有限公司 | Dual-stator switch reluctance machine without shell |
-
2009
- 2009-11-03 CN CN2009202383883U patent/CN201518447U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102347675A (en) * | 2010-07-29 | 2012-02-08 | 天津市松正电动科技有限公司 | Switch magnetic resistance motor rotor structure |
| CN106329860A (en) * | 2015-07-09 | 2017-01-11 | 深圳市风发科技发展有限公司 | Dual-stator switch reluctance machine without shell |
| CN105262274A (en) * | 2015-09-28 | 2016-01-20 | 台州市大泰机电有限公司 | Vehicle double-motor power device |
| CN105743315A (en) * | 2016-03-31 | 2016-07-06 | 湘潭市电机车厂有限公司 | Novel switch reluctance motor for mine narrow-gauge locomotive |
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Granted publication date: 20100630 Termination date: 20131103 |