CN202068314U - Modular complementary primary dual-feed double-convex-electrode linear motor and motor module group formed by same - Google Patents
Modular complementary primary dual-feed double-convex-electrode linear motor and motor module group formed by same Download PDFInfo
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- CN202068314U CN202068314U CN2011201018907U CN201120101890U CN202068314U CN 202068314 U CN202068314 U CN 202068314U CN 2011201018907 U CN2011201018907 U CN 2011201018907U CN 201120101890 U CN201120101890 U CN 201120101890U CN 202068314 U CN202068314 U CN 202068314U
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Abstract
The utility model discloses a modular complementary primary dual-feed double-convex-electrode linear motor and a motor module group formed by the modular complementary primary dual-feed double-convex-electrode linear motor. The modular complementary primary dual-feed double-convex-electrode linear motor comprises a primary part and a secondary part, wherein the primary part comprises a rotor module, the rotor module comprises a first module, a second module and a first non-magnetic-conducting material arranged between the first module and the second module, the first module and the second module respectively comprise two convex electrode magnetic-conducting materials, the convex electrode magnetic-conducting materials are provided with m primary teeth, an integrated armature winding is arranged on each primary tooth, and integrated exciting windings are respectively arranged at connecting parts of the two convex electrode magnetic-conducting materials and the m primary teeth. When being used as a driving motor, the modular complementary primary dual-feed double-convex-electrode linear motor is particularly suitable for the application occasions of long stator structure linear motors, such as urban railway traffic linear motors, electromagnetic ejectors or application occasions requiring wide speed regulation ranges. The modular complementary primary dual-feed double-convex-electrode linear motor can also be used as a power generator to be used in occasions such as sea wave power generation, and the characteristics of variable-speed and constant-voltage output and constant-speed and variable-voltage output can be reached through regulating the intensity of the exciting current.
Description
Technical field
The utility model relates to a kind of biconvex utmost point linear electric motors, what be specifically related to is that the elementary duplex feeding biconvex of a kind of modularization complementary type utmost point linear electric motors reach by its motor module that constitutes, and belongs to linear electric motors manufacturing technology field.
Background technology
Along with industrial expansion, linear electric motors are widely used.Adopt linear motor driving can save traditional handle and rotatablely move and be converted to straight-line mechanical gear, thereby reduce system cost, reduce noise, reduce system bulk, reduce maintenance cost.In track traffic was used, when adopting electric rotating machine to drive, its actuating force was to produce by the adhesion between wheel and the rail especially, and speed is too high and can occur problem such as wheel track slip when slowing down.Therefore, adopt linear electric motors to replace this technological means of electric rotating machine, can overcome the above-mentioned shortcoming of electric rotating machine in this application scenario, improve overall system efficiency.
Line inductance electromotor is applied in the Guangzhou Underground circuit at present.Line inductance electromotor is a brushless structure, does not need to safeguard that stator structure is simple, and system cost is hanged down in the urban track traffic linear drives and played a significant role.But the speed adjusting performance of line inductance electromotor is not good, although converter techniques such as employing vector control, control is complicated, and speed adjusting performance still can't be compared with direct current machine.
Permanent magnetic linear synchronous motor has power density and efficient advantages of higher, but because its armature winding and permanent magnetism are installed in respectively on mover and the stator, be with armature winding as long stator application scenarios such as track traffics or permanent magnet all can cause system cost excessive along track laying, safeguarding shortcomings such as inconvenience.And permanent magnet is exotic material, costs an arm and a leg, and performance is to ambient temperature, and there are a lot of shortcomings in factor sensitivities such as mechanical oscillation in the track traffic applications.Importantly motor-field provides excitation by permanent magnet, is not easy control, must adopt weak magnetic control system technology to increase system cost and complexity.
The utility model content
At the deficiency that exists on the prior art, the utility model purpose provides a kind of good speed adjustment features, the elementary duplex feeding biconvex of modularization complementary type utmost point linear electric motors reliable, simple in structure and that cost is low reach by its motor module that constitutes.
To achieve these goals, the utility model is to realize by the following technical solutions:
The elementary duplex feeding biconvex of modularization complementary type of the present utility model utmost point linear electric motors comprise primary and secondary, the elementary mover module that comprises, mover module comprise first module, second module and be arranged on first module and second module between first non-magnet material; First module and second module include two salient pole permeability magnetic materials, and the salient pole permeability magnetic material is provided with m elementary tooth; Each elementary tooth is provided with concentrated armature winding, is respectively equipped with the central excitation winding on the junction of two salient pole permeability magnetic materials and m the elementary tooth;
The relative displacement of first module and second module is λ
2=(k ± 0.5) τ
s,
The relative displacement of two salient pole permeability magnetic materials is λ in first module and second module
1=m* τ
m,
The ratio of elementary pole span and secondary pole span is τ
m/ τ
s=(m ± 1)/m,
Wherein, τ
mBe elementary pole span, τ
sBe secondary pole span, m is the number of phases of motor, and k is a positive integer.When motor need operate in high speed, reduce the size of DC excitation electric current, thereby reduce the excitation field intensity of motor, finally reach the speed governing purpose, in the time of need increasing motor thrust during low speed, can increase the size of exciting current, improve thrust output.
Above-mentioned first module and second module all also comprise and are arranged on the adjustable non-magnetic conduction pad of thickness between the two salient pole permeability magnetic materials.Non-magnetic conduction pad is used to regulate the armature winding inductance, and its thickness is chosen as required.
Central excitation winding in above-mentioned first module and second module is composed in series the first module excitation winding and the second module excitation winding respectively mutually, the first module excitation winding and the second module excitation winding direction according to the rules are together in series and control, after direction feeds electric current according to the rules, the magnetic direction that the first module excitation winding and the second module excitation winding produce is opposite, when excitation winding feeds the Constant Direct Current electric current, produce the stationary magnetic field in each module, the size that changes direct current can be controlled excitation field intensity.
The concentrated armature winding that belongs to homophase in above-mentioned first module and second module is composed in series an armature winding mutually mutually.
Above-mentioned primary and secondary is salient-pole structure, and has air gap between the two.
Above-mentioned elementary tooth and secondary straight trough or the flume structure of can be.Salient-pole structure is meant that primary and secondary is the teeth groove structure, this tooth certain angle that can tilt, and the angle of inclination is zero to be called the straight trough structure, angle is non-vanishing to be exactly flume structure, can obtain the trapezoidal wave of symmetry during for straight trough, can obtain sine wave during skewed slot.
Above-mentioned secondary only be permeability magnetic material.The permeability magnetic material low price makes the utility model be specially adapted to as the track traffic drive system, can reduce the cost of system greatly.
The elementary duplex feeding biconvex of above-mentioned modularization complementary type utmost point linear electric motors are motor or generator.During as generator operation, can obtain back electromotive force constant under the friction speed by the size that changes exciting current.
The utility model is by the motor module that the elementary duplex feeding biconvex of modularization complementary type utmost point linear electric motors constitute, and comprises n mover module and is arranged on second non-magnet material between the adjacent two mover modules, and n is a positive integer.
The armature winding that belongs to homophase in the said n mover module is composed in series a motor windings mutually or controls separately as a plurality of motor windings.Thereby increased system survivability.
The utility model is particularly suitable for long stator structure linear electric motors application scenario as the drive motors time spent, urban track traffic linear electric motors for example, electromagnetic launch device or need the application scenario of wide speed regulating range; The utility model can also use as generator, be used for occasions such as seawave power generation, by regulating the size of exciting current, thereby reach speed constant pressure output and constant speed transformation output characteristic, speed adjusting performance with respect to prior art is not good, the utility model can be controlled the excitation field of motor by the size of current of control DC excitation winding, thereby enlarges the constant-power speed regulation scope of motor; Armature winding and excitation winding can be controlled DC linear electric motor of the present utility model separately.
Description of drawings
Describe the utility model in detail below in conjunction with the drawings and specific embodiments;
Fig. 1 is an example structure schematic diagram of the elementary duplex feeding biconvex of the utility model modularization complementary type utmost point linear electric motors;
Fig. 2 is an example structure schematic diagram of the utility model motor module.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with embodiment, further set forth the utility model.
The elementary duplex feeding biconvex of modularization complementary type of the present utility model utmost point linear electric motors comprise that elementary 11 and secondary 10, elementary 11 and secondary 10 are salient-pole structure, and have air gap between the two.Wherein, both do not had permanent magnet on secondary 10 and do not had winding yet, only form, make that the utility model is specially adapted to can reduce the cost of system greatly as long stator application scenarios such as track traffic and high-rise building elevators by price lower straight trough or skewed slot permeability magnetic material.
Elementary 11 comprise mover module 110, and mover module 110 comprises the first module 110a and the second module 110b, are provided with first non-magnet material 114 between the first module 110a and the second module 110b.The first module 110a and the second module 110b include between two salient pole permeability magnetic materials, 112, the two salient pole permeability magnetic materials 112 can be provided with non-magnetic conduction pad 111, and non-magnetic conduction pad 111 is used to regulate the armature winding inductance, and its thickness is adjusted as required.Salient pole permeability magnetic material 112 is provided with m elementary tooth 115, and elementary tooth 115 is straight trough or skewed slot, all is provided with on each elementary tooth 115 to concentrate armature winding 113; In the first module 110a and the second module 110b, central excitation winding 116B is enclosed within the junction of two salient pole permeability magnetic materials 112, and central excitation winding 116A, 116C are overlapping m elementary tooth 115 of each salient pole permeability magnetic material 112.
Referring to Fig. 1, m is the number of phases of motor, get m=3, be that motor has A, B, C three-phase, so salient pole permeability magnetic material 112 has three elementary teeth 115, each elementary tooth 115 is provided with concentrates armature winding 113, and three elementary teeth 115 of each salient pole permeability magnetic material 112 are provided with central excitation winding 116A, 116C, the junction of two salient pole permeability magnetic materials 112 also is provided with central excitation winding 116B in each module.The first module 110a and the second module 110b include an adjustable non-magnetic conduction pad 111, two salient pole permeability magnetic materials 112, six concentrated armature winding 113 and three central excitation winding 116A, 116B, 116C.
The first module 110a is identical with the second module 110b structure, and relative displacement is λ
2=(k ± 0.5) τ
s, k is a positive integer, gets k=4, the relative displacement of the first module 110a and the second module 110b is 4.5* τ
s, τ
sBe secondary pole span; The relative displacement of two salient pole permeability magnetic materials 112 is λ in each module
1=3* τ
mThe ratio of elementary pole span and secondary pole span is τ
m/ τ
s=2/3, wherein, τ
mBe elementary pole span.
Central excitation winding 116A among the first module 110a and the second module 110b, 116B, 116C are composed in series the first module excitation winding and the second module excitation winding respectively mutually, the first module excitation winding and the second module excitation winding direction according to the rules are together in series and control, the magnetic direction that the first module excitation winding and the second module excitation winding produce after direction feeds electric current according to the rules is opposite, when excitation winding feeds the Constant Direct Current electric current, produce the stationary magnetic field in each module, the size that changes direct current can be controlled excitation field intensity.
Because the first module 110a, the second module 110b and secondary 10 are salient pole teeth groove structure, produce teeth groove power between elementary 11 and secondary 10 behind the feeding exciting current.Because relative stator displacement complementary characteristic, the first module 110a and the suffered teeth groove power of the second module 110b have 180 ° of phase differences, and variation tendency is opposite, and therefore the synthetic teeth groove power of the first module 110a and the second module 110b is weakened greatly even offsets.
Concentrate armature winding A1 to be composed in series the A first module armature winding mutually among the first module 110a with A2; Concentrate armature winding A3 to be composed in series the A second module armature winding mutually among the second module 110b with A4; A mutually the first module armature winding and A mutually the second module armature winding be composed in series A phase armature winding mutually.Wherein, concentrating the distance between armature winding A1 and the A2 is 3* τ
m=2* τ
sTherefore, elementary relatively 11 displacement is identical, can obtain total electromagnetic parameter 2 times for each winding after promptly concentrated armature winding A1 and the A2 series connection.
360 ° of (promptly mobile τ of elementary 11 electrical cycles of motion of the present utility model
sDistance) in the process, A mutually the first module armature winding and A there are difference on the magnetic circuit in the second module armature winding and secondary 10 relative positions mutually.As shown in Figure 1 during the position, feed the DC excitation electric current after, as supposition A this moment mutually the first module armature winding magnetic linkage be negative minimum amplitude, so A mutually the second module armature winding magnetic linkage be positive maximum amplitude.Move in the one-period process elementary 11, the A first module armature winding magnetic linkage amplitude change procedure mutually is: the negative minimum amplitude of negative minimum amplitude---negative maximum amplitude---; And the A phase second module armature winding magnetic linkage amplitude change procedure is: the positive maximum amplitude of positive maximum amplitude---positive minimum amplitude---.Therefore, the magnetic linkage variation tendency symmetrical complement in two parts armature winding, 180 ° of waveform phase mutual deviations.Though A mutually the first module armature winding and A mutually the magnetic linkage in the second module armature winding all be the unipolarity magnetic linkage, its A phase magnetic linkage that synthesizes is that bipolarity magnetic linkage and amplitude excursion are each 2 times.Simultaneously, the fluctuation amplitude of every phase inductance in a dot cycle reduces, thereby reduces the force oscillation by the generation of magnetic resistance thrust.These characteristics are different with traditional biconvex utmost point linear electric motors.A mutually the first module armature winding and A mutually the counter potential waveform of second module armature winding generation also have symmetry, certain harmonic component of cancelling out each other behind the synthetic phase winding, thereby making every opposite potential amplitude is mutually 2 times of the second module armature winding and symmetrical mutually of the first module armature winding and A of A, elementary tooth 115 and secondary 10 is straight trough or flume structure, the trapezoidal wave of symmetry can be obtained during for straight trough, sine wave can be obtained during for skewed slot.Be applicable to brushless direct-current (BLDC) and brushless ac control (BLAC) respectively.
B, the C two-phase has the characteristics of A phase equally, 120 ° of electrical degrees of phase place mutual deviation between the three-phase.
When motor need operate in high speed, reduce the size of DC excitation electric current, thereby reduce the excitation field intensity of motor, reach the speed governing purpose.In the time of need increasing motor thrust during low speed, can increase the size of DC excitation electric current, improve thrust output.
The elementary duplex feeding biconvex of modularization complementary type of the present utility model utmost point linear electric motors can be monolateral slab construction, bilateral slab construction or cylinder type, may operate in motor or generator state.
Referring to Fig. 2, in the present embodiment, the motor module that the utility model is made of the elementary duplex feeding biconvex of modularization complementary type utmost point linear electric motors, get n=2, the relative displacement that comprises two mover modules 110 and be arranged on second non-magnet material, 117, the two mover modules 110 between the two mover modules 110 is λ
3, suitably adjust λ
3Can further reduce the detent force of whole system.
The armature winding that belongs to the A phase in two mover modules 110 is composed in series a motor windings mutually or controls separately as a plurality of motor windings, thereby has increased system survivability.
Same B, the C two-phase has the characteristics of A phase.
Because the every joint of track train compartment is longer, therefore, a plurality of motor modules can be placed under the same joint compartment.Not only fan-out capability can be improved, fault freedom can also be strengthened.
More than show and described basic principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (10)
1. the elementary duplex feeding biconvex of modularization complementary type utmost point linear electric motors, comprise elementary (11) and secondary (10), described elementary (11) comprise mover module (110), described mover module (110) comprise first module (110a), second module (110b) and be arranged on first module (110a) and second module (110b) between first non-magnet material (114), it is characterized in that
Described first module (110a) and second module (110b) include two salient pole permeability magnetic materials (112), and described salient pole permeability magnetic material (112) is provided with m elementary tooth (115); Described each elementary tooth (115) is provided with concentrated armature winding (113), be respectively equipped with on the junction of described two salient pole permeability magnetic materials (112) and m the elementary tooth (115) the central excitation winding (116A, 116B, 116C);
The relative displacement of described first module (110a) and second module (110b) is λ
2=(k ± 0.5) τ
s,
The relative displacement of two salient pole permeability magnetic materials (112) is λ in described first module (110a) and second module (110b)
1=m* τ
m,
The ratio of elementary pole span and secondary pole span is τ
m/ τ
s=(m ± 1)/m,
Wherein, τ
mBe elementary pole span, τ
sBe secondary pole span, m is the number of phases of motor, and k is a positive integer.
2. the elementary duplex feeding biconvex of modularization complementary type according to claim 1 utmost point linear electric motors, it is characterized in that described first module (110a) and second module (110b) all also comprise and be arranged on the adjustable non-magnetic conduction pad (111) of thickness between the two salient pole permeability magnetic materials (112).
3. the elementary duplex feeding biconvex of modularization complementary type according to claim 1 utmost point linear electric motors, it is characterized in that, central excitation winding (116A in described first module (110a) and second module (110b), 116B, 116C) be composed in series the first module excitation winding and the second module excitation winding respectively mutually, the described first module excitation winding and the second module excitation winding are connected mutually.
4. the elementary duplex feeding biconvex of modularization complementary type according to claim 1 utmost point linear electric motors, it is characterized in that the concentrated armature winding (113) that belongs to homophase in described first module (110a) and second module (110b) is composed in series an armature winding mutually mutually.
5. according to any elementary duplex feeding biconvex of the described modularization complementary type utmost point linear electric motors of claim 1 to 4, it is characterized in that described elementary (11) and secondary (10) are salient-pole structure, and have air gap between the two.
6. the elementary duplex feeding biconvex of modularization complementary type according to claim 5 utmost point linear electric motors is characterized in that described elementary tooth (115) and secondary (10) can be straight trough or flume structure.
7. according to any elementary duplex feeding biconvex of the described modularization complementary type utmost point linear electric motors of claim 1 to 4, it is characterized in that described secondary (10) only are permeability magnetic material.
8. according to any elementary duplex feeding biconvex of the described modularization complementary type utmost point linear electric motors of claim 1 to 4, it is characterized in that the elementary duplex feeding biconvex of described modularization complementary type utmost point linear electric motors are motor or generator.
9. by any motor module that the elementary duplex feeding biconvex of described modularization complementary type utmost point linear electric motors constitute of claim 1 to 4, it is characterized in that, comprise n mover module (110) and be arranged on second non-magnet material (117) between the adjacent two mover modules (110), n is a positive integer.
10. motor module according to claim 9 is characterized in that, the armature winding that belongs to homophase in described n the mover module (110) is composed in series a motor windings mutually or controls separately as a plurality of motor windings.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201018907U CN202068314U (en) | 2011-04-08 | 2011-04-08 | Modular complementary primary dual-feed double-convex-electrode linear motor and motor module group formed by same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201018907U CN202068314U (en) | 2011-04-08 | 2011-04-08 | Modular complementary primary dual-feed double-convex-electrode linear motor and motor module group formed by same |
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|---|---|
| CN202068314U true CN202068314U (en) | 2011-12-07 |
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ID=45062165
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|---|---|---|---|
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102142763A (en) * | 2011-04-08 | 2011-08-03 | 东南大学 | Modularized complementary type primary double-fed brushless direct-current linear motor and motor module composed by same |
| CN109921592A (en) * | 2019-03-28 | 2019-06-21 | 河海大学 | A kind of mixed excitation electric machine rotor structure suitable for modularized production |
| CN110649783A (en) * | 2019-09-26 | 2020-01-03 | 哈尔滨工业大学 | Mixed excitation linear reluctance motor system |
| CN114362472A (en) * | 2021-12-28 | 2022-04-15 | 中国人民解放军海军工程大学 | Segmented splicing modular motor with intersegment magnetic field compensation winding and splicing compensation method thereof |
-
2011
- 2011-04-08 CN CN2011201018907U patent/CN202068314U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102142763A (en) * | 2011-04-08 | 2011-08-03 | 东南大学 | Modularized complementary type primary double-fed brushless direct-current linear motor and motor module composed by same |
| CN102142763B (en) * | 2011-04-08 | 2013-01-09 | 东南大学 | Modularized complementary type primary double-fed brushless direct-current linear motor and motor module composed by same |
| CN109921592A (en) * | 2019-03-28 | 2019-06-21 | 河海大学 | A kind of mixed excitation electric machine rotor structure suitable for modularized production |
| CN110649783A (en) * | 2019-09-26 | 2020-01-03 | 哈尔滨工业大学 | Mixed excitation linear reluctance motor system |
| CN114362472A (en) * | 2021-12-28 | 2022-04-15 | 中国人民解放军海军工程大学 | Segmented splicing modular motor with intersegment magnetic field compensation winding and splicing compensation method thereof |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20111207 Effective date of abandoning: 20130227 |
|
| RGAV | Abandon patent right to avoid regrant |