CN105391269A - New type of permanent magnet linear stepper motor - Google Patents
New type of permanent magnet linear stepper motor Download PDFInfo
- Publication number
- CN105391269A CN105391269A CN201510941231.7A CN201510941231A CN105391269A CN 105391269 A CN105391269 A CN 105391269A CN 201510941231 A CN201510941231 A CN 201510941231A CN 105391269 A CN105391269 A CN 105391269A
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- China
- Prior art keywords
- stator
- magnet linear
- mover
- drive circuit
- stepping motor
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
- H02K41/02—Linear motors; Sectional motors
- H02K41/03—Synchronous motors; Motors moving step by step; Reluctance motors
- H02K41/031—Synchronous motors; Motors moving step by step; Reluctance motors of the permanent magnet type
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- Linear Motors (AREA)
Abstract
The present invention relates to the field of electromechanics, and particularly to a new type of permanent magnet linear stepper motor. The new type of permanent magnet linear stepper motor comprises a stator, a mover, a slideway, and a drive circuit, and is characterized in that: the stator consists of stator coils; the mover consists of permanent magnet blocks; the slideway is disposed between the mover and the stator, one surface of the slideway is fixed to the mover, and the other surface of the slideway is adjacent to the stator; and the drive circuit consists of a central controller, a power supply, a power switch, one or multi-channel H-bridge drive circuit and circuit lines. The beneficial effects of the new type of permanent magnet linear stepper motor disclosed by the present invention are of simple structure, easy implementation, low weight, small size and easily adjustable size.
Description
Technical field
The present invention relates to electro-mechanical arts, particularly relate to a kind of novel permanent-magnet linear stepping motor.
Background technology
Linear electric motors are generally made up of stator and mover, and stator is generally made up of the coil of multi-group iron core, and mover is then made up of permanent magnet.The travelling-magnetic-field of input alternation in stator, the magnetic field of generation and the magnetic field of permanent magnet interact thus produce the power of transverse shifting, and then it is mobile that mover is produced.Conventional linear electric motors are all generally driven by three phase sine alternating current, utilize circuit to produce three phase sine alternating current, realize very complicated under confined space DC power supply.
Summary of the invention
The object of the present invention is to provide a kind of novel permanent-magnet linear stepping motor, have employed structure and the type of drive of linear electric motors, but have employed the drive singal of similar stepping motor, adopt the travelling-magnetic-field producing alternation according to the alternating current of square wave rule amplitude of variation and phase place, reach both structures simple with driving, the object of linear drives can be realized again.
Technical scheme of the present invention is as follows:
A novel permanent-magnet linear stepping motor, comprises stator, mover, slideway and drive circuit, it is characterized in that:
Described stator is made up of stator coil;
Described mover is made up of permanent magnetic iron block;
Described slideway, is placed between mover and stator, and a surface of slideway and mover are fixed, and the another one surface of slideway is adjacent with stator;
Described drive circuit is made up of central controller, power supply, mains switch, a road or multichannel H-bridge drive circuit and circuit connection.
Further, two stator coils are connected or compose in parallel a road sets of stator coils, and stator is made up of one or more sets of stator coils.
Further, be set up interval [n/2-1] individual coil between two stator coils of described formation every road sets of stator coils at physical space cloth, n represents the total coil count forming stator.
Further, the sense of current formed in two serial or parallel connection stator coils of a road sets of stator coils is identical.
Further, form in the stator coil of stator and be placed with iron core.
Further, the permanent magnet forming mover is one piece, or is made up of polylith.
Further, the material forming the slideway of motor is self-lubricating nylon, or polytetrafluoroethylene, or brass.
Further, the mains switch of described drive circuit is made up of switch triode or field effect transistor, physical power source switch and electric capacity.
Further, the central controller of described drive circuit, by the height of the incoming level of control break drive circuit Zhong mono-tunnel or multichannel H bridge and the low control realizing the sense of current in coil, realizes forward or reverse drive electric current.
Further, the power supply of described drive circuit is Ni-MH battery or lithium battery.
Beneficial effect of the present invention is:
The present invention discloses a kind of novel permanent-magnet linear stepping motor, and structure is simple, and be easy to realize, weight is little, and the little and size of size easily adjusts.
Accompanying drawing explanation
Fig. 1 is overall structure figure of the present invention.
Fig. 2 is the power switch circuit figure of drive circuit of the present invention.
Fig. 3 is the control structure figure of single channel stator of the present invention.
Fig. 4 is the present invention 4 tunnel 8 stator circuit schematic diagram.
Fig. 5-8 is motion control sequential charts of motor of the present invention.
Embodiment
Below in conjunction with accompanying drawing, technical scheme of the present invention is elaborated.
Permanent-magnet linear stepping motor of the present invention, comprises stator, mover, slideway and drive circuit.Stator is made up of stator coil, and every two stator coils are composed in series a road sets of stator coils, and stator is made up of multichannel or a road sets of stator coils.Mover is made up of permanent magnetic iron block.Slideway is placed between mover and stator, and a surface of slideway fixes with mover and is connected, and the another one surface of slideway is adjacent with stator.
Drive circuit is made up of central controller, power supply, mains switch, resistance, electric capacity, transistor and circuit connecting wire.Under general state, magneto is in power down state, does not have electric current, do not produce magnetic field in the coil of composition stator.Now, because stator has coil and iron core, mover is adsorbed on stator by the magnetic force that the permanent magnet of composition mover can be utilized to possess.
When permanent-magnetism linear motor works, first turn on the power switch, drive circuit is started working.Under central controller controls, the coil of composition stator, according to square wave rule, according to predefined sequential, produces forward current or reverse current.Electric current because the change in direction, and then produces the magnetic field changed according to rule.The magnetic field produced by electric current and the interphase interaction of permanent magnet form mover: the magnetic field of a part of coil and permanent magnet produce and repulsive interaction occurs, generation thrust; In addition a part of coil magnetic field with produces sucking action with permanent magnet, generation suction.Under the acting in conjunction of thrust and suction, mover moves in a set direction.
When the work has been finished, powered-down switch.In the coil of composition stator, because without electric current, no longer will produce magnetic field.Now, because have the coil of stator and the existence of iron core, dependence magneticaction is still adsorbed on stator by the permanent magnet of composition mover.
The layout of Fig. 1 to be overall structure figure, Fig. 2-Fig. 4 of the present invention be drive circuit in the present invention.Stator of the present invention is in one line by 8 stator coils, and wherein, stator coil 1 and stator coil 5 are connected, and drives and is input as A+ and A-; Stator coil 2 and 6,3 and 7,4 and 8 is also identical annexation.The present invention is not limited to 8 stator coils, and the size of and mover weight far and near according to shift motion, during design realizes, coil quantity can increase or reduce.In the present embodiment, stator coil 1 stator coil 5 is series relationship, and the present invention does not limit the series system between them, also can be parallel way.Compared with parallel way, under series system, the spatial area that the drive circuit of total coil takies is little.Design parameter in examples of implementation below and numerical value are citing, in actual applications, can change as required.
In this embodiment, the major parameter of stator coil is as follows:
● wire diameter 0.15mm
● the number of turn 500
● core dimensions: diameter 2mm, length 10mm
● coil shape: 5x5x8mm
● Coil resistance: 12.5 ohm
● drive current: 300mA
● ceiling voltage: 5V
Mover permanent magnet is made up of polylith permanent magnet, and the size of every block permanent magnet is 5x10x1mm, and on lateral dimension, just in time one piece of permanent magnet covers two stator coils.
One of content important in the structural design of these linear electric motors is kind of air-gap design, and air gap refers to the space interval between mover and stator.The size of air gap is very large to the driving influential effect of motor, and the present invention adopts friction slide rail, needs resistance and the actuating force of taking into account slide rail.Air gap is little, and the attraction of vertical direction can become large, and the resistance that slide rail is slided can become large; Air gap is large, and frictional force diminishes, but simultaneously, because magnetic field dies down, the actuating force of motor can diminish.Need the air gap selecting suitable size in realization, ensure the best fit of actuating force, the suction-combining force and frictional force three.
Motor-drive circuit
The basic parameter of circuit:
● supply voltage: 2.8-4.2V
● control signal level: 3.7V
● drive circuit form: H bridge
● drive way: 4
● drive current: <1.5A
In order to simplified control circuit, H bridge only has two input variables: direction control signal, power supply input switch.As shown in Figure 2, when mains switch input signal is high, circuit ends power switch circuit, motor-drive circuit no-output; When mains switch input signal is low, circuit turn-on, motor-drive circuit is powered.
Specific implementation process: 1) first input specific level by corresponding control pin, realize specific control logic; 2) turning on the power switch, is circuit supply; 3) after the energising fixed time, powered-down switch; 4) control pin and recover acquiescence level.
Control timing sequence is analyzed
Sequential 1 as shown in Figure 5.Now, if wish that motor moves right, the magnetic direction that stator coil produces is followed successively by: NSSNNSSN.
Sequential 2 as shown in Figure 6.Now, if wish that motor moves right, the magnetic direction that stator coil produces is followed successively by: NNSSNNSS.
Sequential 3 as shown in Figure 7.Now, if wish that motor moves right, the magnetic direction that stator coil produces is followed successively by: SNNSSNNS.
Sequential 4 as shown in Figure 8.Now, if wish that motor moves right, the magnetic direction that stator coil produces is followed successively by: SSNNSSNN.
Above sequential 1-4, alternately Continuous Drive, the order of switching is different, and the forward that can realize motor moves and oppositely movement.
Claims (10)
1. a novel permanent-magnet linear stepping motor, comprises stator, mover, slideway and drive circuit, it is characterized in that:
Described stator is made up of stator coil;
Described mover is made up of permanent magnetic iron block;
Described slideway, is placed between mover and stator, and a surface of slideway and mover are fixed, and the another one surface of slideway is adjacent with stator;
Described drive circuit is made up of central controller, power supply, mains switch, a road or multichannel H-bridge drive circuit and circuit connection.
2. a kind of novel permanent-magnet linear stepping motor according to claim 1, is characterized in that:
Two stator coils are connected or compose in parallel a road sets of stator coils, and stator is made up of one or more sets of stator coils.
3. a kind of novel permanent-magnet linear stepping motor according to claim 1, is characterized in that:
Be set up interval [n/2-1] individual coil at physical space cloth between two stator coils of described formation every road sets of stator coils, n represents the total coil count forming stator.
4. a kind of novel permanent-magnet linear stepping motor according to claim 1, is characterized in that:
The sense of current formed in two serial or parallel connection stator coils of a road sets of stator coils is identical.
5. a kind of novel permanent-magnet linear stepping motor according to claim 1, is characterized in that:
Form in the stator coil of stator and be placed with iron core.
6. a kind of novel permanent-magnet linear stepping motor according to claim 1, is characterized in that:
The permanent magnet forming mover is one piece, or is made up of polylith.
7. a kind of novel permanent-magnet linear stepping motor according to claim 1, is characterized in that:
The material forming the slideway of motor is self-lubricating nylon, or polytetrafluoroethylene, or brass.
8. a kind of novel permanent-magnet linear stepping motor according to claim 1, is characterized in that:
The mains switch of described drive circuit is made up of switch triode or field effect transistor, physical power source switch and electric capacity.
9. a kind of novel permanent-magnet linear stepping motor according to claim 1, is characterized in that:
The central controller of described drive circuit, by the height of the incoming level of control break drive circuit Zhong mono-tunnel or multichannel H bridge and the low control realizing the sense of current in coil, realizes forward or reverse drive electric current.
10. a kind of novel permanent-magnet linear stepping motor according to claim 1, is characterized in that:
The power supply of described drive circuit is Ni-MH battery or lithium battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510941231.7A CN105391269A (en) | 2015-12-16 | 2015-12-16 | New type of permanent magnet linear stepper motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510941231.7A CN105391269A (en) | 2015-12-16 | 2015-12-16 | New type of permanent magnet linear stepper motor |
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| Publication Number | Publication Date |
|---|---|
| CN105391269A true CN105391269A (en) | 2016-03-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510941231.7A Pending CN105391269A (en) | 2015-12-16 | 2015-12-16 | New type of permanent magnet linear stepper motor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111655599A (en) * | 2018-01-25 | 2020-09-11 | 莱克斯诺弗莱托普欧洲有限公司 | Article conveyor |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4460855A (en) * | 1980-05-19 | 1984-07-17 | Kelly H P G | Linear motor |
| JPH01160348A (en) * | 1987-12-15 | 1989-06-23 | Tokyo Electric Co Ltd | Linear pulse motor |
| JPH04217854A (en) * | 1990-04-12 | 1992-08-07 | Fuji Electric Co Ltd | Moving field type linear motor |
| CN1684347A (en) * | 2004-04-17 | 2005-10-19 | 戴开煌 | Long travel moving iron DC linear motor |
| CN1714493A (en) * | 2002-11-18 | 2005-12-28 | 精工爱普生株式会社 | Magnetic structure, motor adopting the magnetic structure and drive including the motor |
| CN205249023U (en) * | 2015-12-16 | 2016-05-18 | 优丫优科技股份有限公司 | Novel permanent magnetism linear stepping motor |
-
2015
- 2015-12-16 CN CN201510941231.7A patent/CN105391269A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4460855A (en) * | 1980-05-19 | 1984-07-17 | Kelly H P G | Linear motor |
| JPH01160348A (en) * | 1987-12-15 | 1989-06-23 | Tokyo Electric Co Ltd | Linear pulse motor |
| JPH04217854A (en) * | 1990-04-12 | 1992-08-07 | Fuji Electric Co Ltd | Moving field type linear motor |
| CN1714493A (en) * | 2002-11-18 | 2005-12-28 | 精工爱普生株式会社 | Magnetic structure, motor adopting the magnetic structure and drive including the motor |
| CN1684347A (en) * | 2004-04-17 | 2005-10-19 | 戴开煌 | Long travel moving iron DC linear motor |
| CN205249023U (en) * | 2015-12-16 | 2016-05-18 | 优丫优科技股份有限公司 | Novel permanent magnetism linear stepping motor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111655599A (en) * | 2018-01-25 | 2020-09-11 | 莱克斯诺弗莱托普欧洲有限公司 | Article conveyor |
| US11305943B2 (en) | 2018-01-25 | 2022-04-19 | Rexnord Flattop Europe S.R.L. | Conveyor of articles |
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Application publication date: 20160309 |
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