CN101604893A - A kind of linear oscillating motor and optical coupled switch and drive circuit, yoke, mover, heat radiation - Google Patents
A kind of linear oscillating motor and optical coupled switch and drive circuit, yoke, mover, heat radiation Download PDFInfo
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- CN101604893A CN101604893A CNA200810124823XA CN200810124823A CN101604893A CN 101604893 A CN101604893 A CN 101604893A CN A200810124823X A CNA200810124823X A CN A200810124823XA CN 200810124823 A CN200810124823 A CN 200810124823A CN 101604893 A CN101604893 A CN 101604893A
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Abstract
The invention discloses a kind of linear oscillating motor, it is the axially stack of magnet exciting coil (ABCDEFG) that has independent outer yoke unshakable in one's determination with three-phase or more than the three-phase, and by peripheral unit they is connected and fixed.The output axostylus axostyle (37) of mover core (35) passes the axis hole of side plate or end cap (30,31), and frame stands on the shaft core position of motor.Constitute the total movement mechanism of whole linear oscillating motor.It both can adopt dc switch type power work, can directly insert 6 half-wave pulsating direct current starting operations of three-phase alternating current again.Can also change control mode, be used as stepping motor and use.Advantage with high thrust, long stroke.Simple in structure, easily manufactured.
Description
Technical field:
The present invention relates to a kind of linear oscillating motor, it comprises linear oscillating motor that adopts direct current switching mode power supply and this integer linear oscillating motor that is directly inserted by three-phase alternating-current supply.The invention still further relates to the used optical coupled switch of linear oscillating motor, drive circuit and mechanical type DC-pulse ring distributor.The invention still further relates to the connected mode between the outer yoke unshakable in one's determination of the central independence of linear oscillating motor and mover core and the output axostylus axostyle.The invention still further relates to the constraint bracing or strutting arrangement of increase mover core kinetic stability and the internal heat dissipating method of linear oscillating motor.The invention still further relates to by three-phase or the above winding of three-phase and constitute big stroke linear oscillating motor with rolling piston compressor both ends open feature.The invention still further relates to that linear oscillating motor uses two voltage drive methods.The invention still further relates to overlapping conduction time that increases between each phase excitation coil and the method that reduces switching loss
Background technology:
The magnetic resistance type linear stepping motor of prior art is made up of the three phase excitation coil at least, during work, drive and rely on pulsqe distributor to control the switching sequence of each phase excitation coil and the drive current and the heterodromous drive current of definite value that alternately provide the definite value positive movement realized the straight reciprocating motion of magnetic field at motor internal according to certain rules by CPU numerical control DC power supply.Thereby make mover core can follow reciprocating magnetic field and form the linear reciprocation operation at motor internal.Their excitation mode has: single-phase energising excitation (as: A-B-C---) and the heterogeneous excitation of switching on simultaneously (as: A-AB-B-BC--or ABC-BCD-CDE-DEF--) etc. are multiple.(No. 085544 " motor servo control technique " 21 pages of Chinese depository library CIP data core word (2003) reaches " cylinder type stepping motor " 173 pages).
Summary of the invention:
The present invention is to provide a kind of linear oscillating motor with three-phase or the above excitation winding formation of three-phase, it can also adopt this integer circuit starting operation of three-phase alternating current except can utilizing dc switch type power supply.Can be used as stepping motor fully with the structure of this linear oscillating motor and use, the difference of the two only is the difference of control mode.And prior art is quite perfect to the control method of stepping motor.
In order to realize the purpose of foregoing invention, the first kind of technical scheme that adopts is: will a plurality ofly have the independent magnet exciting coils of yoke unshakable in one's determination outward and axially superpose, and make the polarity of the magnetic field of all magnet exciting coils identical and can both remain unchanged in the linear reciprocation running of whole motor.Rely on two ends side plate with holes or end cap, cylindrical chassis in the centre, by nut they are connected and fixed, then, according to single-phase or heterogeneous energising excitation mode that this reciprocating linear motor adopted (as: adopt the A-B-C-B-of single-phase energising single coil excitation or heterogeneous energising polyphase winding simultaneously the ABC-BCD-CDE-DEF-of excitation or a plurality of coils of single-phase energising simultaneously the A phase of excitation (
ABC) the B phase (
BCD) the C phase (
CDE)) select external diameter to be slightly less than the hollow mover core section of surrounding space, realize being rigidly connected by NULL body and the power output shaft bar in the middle of this hollow mover core section, the axle sleeve of the side plate (or end cap) that the two ends of this power output shaft bar and motor two ends have a centre bore by non-magnet material forms moving sets and cooperates, and stood in the shaft core position of motor by frame.Constitute the total movement mechanism of whole linear oscillating motor.
In the present invention, generate heat in order to prevent Switching Power Supply from forming the magnetic flux alternation on the common core between each adjacent magnet exciting coil, institute is so that each magnet exciting coil all has independently outer yoke unshakable in one's determination.And outside each adjacent independence, be provided with between the yoke unshakable in one's determination residual shim or the surface every magnetic coating.
In the present invention, the outer yoke unshakable in one's determination of the independence of each magnet exciting coil, the soft iron hollow cylinder of and magnet exciting coil equal in length peripheral and consistent with soft iron hollow cylinder body diameter by magnet exciting coil, circular soft iron sheet that endoporus is identical with the magnet exciting coil endoporus or silicon steel sheet formation.And, can have radially breaking joint for the annular element on the independent outer iron circuit.
In the present invention, mover core can be the soft iron hollow cylinder of single integral body, can also be the hollow cylinder that is formed by soft iron hollow cylinder and silicon steel sheet aliasing by many silicon steel sheets or the folded hollow cylinder that forms of making of soft iron thin slice also.Between the power output shaft bar of these hollow cylinders and linear oscillating motor all is to be connected by NULL.
In the present invention, in order to increase the kinetic stability of mover core, can also be provided with the constraint support of guiding slide bar to mover core.The two ends of this guiding slide bar are connected with the side plate or the end cap of motor, and hole on centre and the mover core or groove form and be slidingly matched.And between guiding slide bar and mover core, there be not direct ferromagnetic the connection.Also can the fixedly body of nonmagnetic substance be set in the mover core periphery of motor internal and have keyway thereon, the feather key projection formation that is provided with on this keyway and the mover core is slidingly matched, and increases the kinetic stability of mover core with this.
In the present invention, in order to solve the heat dissipation problem of motor interior, can adopt guiding slide bar at the hollow pipe trigger switch iron core of both ends open.Also an end of hollow guiding slide bar can be sealed, and perforate on the close guiding slide bar position of end cap of motor internal.The volume-variation of utilizing mover core to form in the motor internal reciprocating motion.The heat of motor internal is exchanged by this passage and outside.Can also be behind slot milling between the yoke outer unshakable in one's determination of the cylindrical outer casing of motor and magnet exciting coil.Leave the heat dispersion that motor is improved in the cross-ventilation hole from the top and the bottom of motor housing.Can also on the magnetism isolating spacer that is arranged at electric motor end cap or side plate inboard, leave radially hole slot and electric machine casing volume inside UNICOM, the hot-air of motor internal is exchanged by this passage and outside the generation.The method that can also be used in direct perforate on electric motor end cap or the side plate solves the heat dissipation problem of linear oscillating motor.
In the present invention, in order further to save and to dwindle the installing space of linear oscillating motor in the middle of plant equipment, inside is provided with the mover core of guiding slide bar bracing or strutting arrangement.Can adopt the outside outputting power of unidirectional output axostylus axostyle.And on the side plate or end cap of not exporting axostylus axostyle one end, the air-breathing heat transmission of the row hole of motor can be set.
In the present invention, the guiding slide bar (38,39) that is arranged between two electric motor end caps (30,31) or the side plate (30,31) can also be made closed hollow body, silicone grease, silicone oil lubricant are filled in inside, and this lubricant can outwards discharge by the micropore that is arranged on the hollow guiding slide bar.
In the present invention, produce noise at end cap or side plate, increase the space length between two ends magnet exciting coil and end cap or the side plate except adopting magnetism isolating spacer in order to prevent mover core.Also rubber damping or shock-absorbing spring can be set in the inboard of end cap, magnetic spring can also be set at the two ends of motor internal, and (that is: on the magnet exciting coil both sides of motor internal, each increases a coil, is relation in parallel between this coil and the adjacent magnet exciting coil.But both polarity of the magnetic fields are just in time opposite on spatial direction) realize.
In the present invention, can also axially be superimposed upon the magnet exciting coil that has independent outer yoke unshakable in one's determination more than three or three periphery of the hollow stator of using nonferromagnetic material, and fixed side and nut by two ends, they are linked together, put into the cylinder type mover core of making of soft magnetic material then in the inside of hollow stator.The periphery of this cylinder type mover core is provided with a plurality of metallic piston rings, is provided with unidirectional valve in inside.This linear oscillating motor has unique advantage at linear compressor field.
In the present invention, if adopt be the mode of single coil excitation the time, the length of cylinder type mover core should be not less than the effective length (containing the radially thickness of yoke unshakable in one's determination) of each magnet exciting coil, if what adopt is heterogeneous or a plurality of magnet exciting coils simultaneously during the mode of excitations, the length of cylinder type mover core can also be less than the axial stack length (containing the radially thickness of yoke unshakable in one's determination) of all magnet exciting coils of switching on simultaneously.
In the present invention, the housing designs of motor can also be become flat formula structure, and mover core, magnet exciting coil, end cap, yoke unshakable in one's determination etc. are all adapted with the shell of flat type linear oscillating motor with plate lower margin.
Linear oscillating motor of the present invention can be with two opposed uses, its method: exactly their power output shaft bar is connected.The operate portions of plant equipment is located on the centre position of two linear oscillating motors.
In the middle of linear oscillating motor of the present invention, first kind of scheme that the power on/off control of each phase excitation coil is adopted is: utilize the pulse ring distributor, the main switch triode of each phase excitation coil of control connection (comprise by a plurality of magnet exciting coils and form phase) makes it (pass through main switch triode V as the A phase current according to each phase excitation coil putting in order of motor internal
1Connect magnet exciting coil A, B, C; The B phase current is by main switch triode V
2Connect magnet exciting coil B, C, D; The C phase current is by main switch triode V
3Connect magnet exciting coil C, D, E; The D phase current is by main switch triode V
4Connect magnet exciting coil D, E, F; The E phase current is by main switch triode V
5Connect magnet exciting coil E, F, G), carry out periodic break-make control and alternately provide to property the drive current of definite value positive movement and the heterodromous drive current of definite value (as: ABC--BCD-CDE--DEF-EFG-FED-EDC---DCB--CBA).
In the middle of this drive circuit, the every composition by a plurality of magnet exciting coils in the middle of the multi-phase excitation coil of same phase, between all adjacent magnet exciting coils (input), all keeping a kind of interconnection relation that can receive two-phase or the above heterogeneous overlapping power supply of two-phase continuously, that is: when last phase current was turned off, back one phase current still can make the part magnet exciting coil that is acted on by last phase current keep "on" position.By this connected mode that can make adjacent magnet exciting coil can both receive heterogeneous overlapping power supply more than the two-phase two-phase, increased the conduction time and the switch number of times and the loss that have reduced magnet exciting coil of magnet exciting coil.
In the middle of this drive circuit, between the input of every phase main switch triode and connection magnet exciting coil, all be provided with non-return diode, between the output of each magnet exciting coil and return line, also all be provided with non-return diode.And from the output of each magnet exciting coil to the position the non-return diode, switching sequence according to magnet exciting coil, the high pressure overcurrent that is turned off the coil generation is imported the next magnet exciting coil that is starting by other circuit and non-return diode, simultaneously, also will start the output of magnet exciting coil by other circuit and non-return diode and the input formation loop that is turned off coil.Reduce the electrical time constant of each magnet exciting coil in the middle of three-phase or the above reciprocating linear motor of three-phase and the aftercurrent accelerating to be turned off in the middle of the coil discharges with the mode of this pair of driven.
In the middle of this drive circuit, also can be according to each phase excitation coil putting in order on the locus, except the first and last two-phase (as 5 phase motor A, B, C, D, the E A in quite mutually with E mutually) the base lead end of main switch triode be one, the base lead end of all the other main switch triodes is two, and (the base lead end as A phase main switch triode is 1; The base lead end of B phase main switch triode is 8 and 2; The base lead end of C phase main switch triode is 7 and 3; The base lead end of D phase main switch triode is 4 and 6; The base lead end of E phase main switch triode is 5) to adapt to the job order requirement of ring distributor (1-2-3-4-5-6-7-8-1-2-3-4-5-6-7-8-).Can also be adjusted into the operating state that linear reciprocation is distributed (as 1-2-3-4-5-4-3-2-1-) to the end to end rotary mode of ring distributor.
In the middle of linear oscillating motor of the present invention, second kind of scheme that the power on/off control of each phase excitation coil is adopted is: replace the central pulse ring distributor of electronic switch with mechanical type direct current ring distributor.That is: by rotor frame the box of the carbon brush that connects each phase excitation coil by the fixed installation carbon brush, be evenly distributed in rotor around, and the cambered surface of each carbon brush is contacted with the extrados formation elastic pressure of rotor.Rotor block is by the insulating properties material.Source current relies on power source brush by a finite region on the importing of the collector ring on the rotor shaft rotor extrados.During work, drive rotor rotation, make epitrochanterian electric region territory slip over the contacting surface that each phase excitation coil is subjected to the electrical carbon brush rotatably, realize the annular distribution of direct current in the middle of each phase excitation coil by micromotor.
In the middle of linear oscillating motor of the present invention, three kinds of schemes that control is adopted to the power on/off of each phase excitation coil (comprising the phase of being made up of a plurality of magnet exciting coils) are: utilize be equally distributed on the fixed grating dish with the removable slit dish on an arc grating seam be on the same diameter circumference and connect each phase phototriode of all magnet exciting coils in the middle of the linear oscillating motor and corresponding and be located at the optocoupler control switch that semiconductor light-emitting elements on the fixed light source tray of removable slit dish opposite side constitutes linear oscillating motor jointly with each phase phototriode.This mechanical type optical coupled switch is driven by DC micromotor or micro-stepping motor, and can according to each phase excitation coil (comprising the phase of forming by a plurality of magnet exciting coils) motor internal put in order and the work magnetic field that requires in the straight reciprocating motion rule of motor internal, the screening printing opacity that is sewn between fixed grating dish and the fixed light source tray by the arc grating on the removable slit dish changes, and makes motor obtain the drive current of definite value positive movement periodically and the heterodromous drive current of periodicity definite value (as: 7 phase motors when adopting 3 excitations when identical be ABC--BCD-CDE--DEF-EFG-ABC--BCD-CDE--DEF-EFG-).Because the magnetic field that each phase excitation coil produces forms straight reciprocating motion at motor internal.Thereby make the mover core that is magnetized follow reciprocating magnetic field and form synchronous operation at motor internal.The velocity of rotation of adjusting micromotor can change the reciprocating frequency of linear oscillating motor.
In the present invention, the arc grating is sewn on the quantity of the permeable semiconductor light-emitting elements of institute and phototriode in the random time, determines the energising excitation mode of linear oscillating motor.
In the middle of linear oscillating motor of the present invention, the 4th kind of scheme that control is adopted to the power on/off of each phase excitation coil (comprising the phase of being made up of a plurality of magnet exciting coils) is: by the phase-splitting rectified action of diode, and 6 half-wave DCs that will obtain in the middle of the three-phase alternating current.The sequencing that forms by its crest voltage and in conjunction with the linear oscillating motor institute reciprocating motion rule of requirement work magnetic field on the locus connects each central phase excitation coil of linear oscillating motor successively and finishes its forward drive and reverse drive.As: when adopting Unipolar driving circuit,------earlier the upper half of A phase is connected in zero line after successively by rectifier diode (the non-return diode that comprises homophase shunt excitation coil input end)--magnet exciting coil----non-return diode; The lower half of C phase--is connected in the live wire of C phase by rectifier diode (the non-return diode that comprises homophase shunt excitation coil input end) successively behind--magnet exciting coil-----non-return diode from zero line; The upper half of B phase is successively by rectifier diode (the non-return diode that comprises homophase shunt excitation coil input end)--is connected in zero line (more than be the power-up sequence of motor positive movement) behind--magnet exciting coil-----non-return diode.Then, again with the lower half of A phase from the zero line successively by behind the B phase excitation coil in the middle of rectifier diode (the non-return diode that comprises homophase shunt excitation coil input end) and the motor forward drive power-up sequence, be connected in the live wire of A phase again by non-return diode; The upper half of C phase by the C phase excitation coil in the middle of rectifier diode (the non-return diode that comprises homophase shunt excitation coil input end) and the motor forward drive power-up sequence after, be connected in the zero line of C phase again by non-return diode; The lower half of B phase successively by behind the A phase excitation coil in the middle of rectifier diode (the non-return diode that comprises homophase shunt excitation coil input end) and the motor forward drive power-up sequence, is connected in the live wire of B phase from the zero line again by non-return diode ".By this access way, they are formed and the crest voltage of generation and the job requirement that change of magnetic field strength meets linear oscillating motor, and on the motor interior locus, present regular linear reciprocation and move.Thereby, drive mover core and form the linear reciprocation operation at motor internal.
In the middle of linear oscillating motor of the present invention, the 5th kind of scheme that control is adopted to the power on/off of each phase excitation coil (comprising the phase of being made up of a plurality of magnet exciting coils) is: by the phase-splitting rectified action of diode, and 6 half-wave DCs that will obtain from the three-phase alternating current electric rectification.Put in order by its priority that forms voltage peak and to connect three phase excitation coil in the middle of the linear reciprocating stepping motor successively, and make its reciprocating motion rule that meets mover core forward drive and reverse drive in the middle of the linear oscillating motor, and as: when adopting the bipolarity drive circuit, be connected in zero line behind------can be earlier with the upper half of A phase successively by non-return diode---magnet exciting coil; The lower half of C phase from the zero line by being connected in the live wire of C phase behind the magnet exciting coil; The upper half of B phase is successively by being connected in zero line (more than be the power-up sequence of motor positive movement) behind non-return the diode----magnet exciting coil.Then, again with the lower half of A phase from the zero line successively by behind the moving B phase excitation coil that drives in the middle of the power-up sequence of motor forward, be connected in the live wire of A phase again by non-return diode; After the upper half of C phase passes through the central C phase excitation coil of motor forward drive power-up sequence, be connected in the zero line of C phase; The lower half of B phase successively behind the input by the A phase excitation coil in the middle of the motor forward drive power-up sequence, is connected in the live wire of B phase from the zero line again by non-return diode.By this access way, the crest voltage and the magnetic field intensity Changing Pattern on the position, inner space of motor that make their formation and produce.Satisfy the job requirement of linear oscillating motor fully, form the linear reciprocation operation at motor internal thereby drive mover core.
Description of drawings:
Fig. 1 is the cut-away view of a kind of concrete structure of the present invention's " linear oscillating motor ".The 5 phase linear oscillating motors that it is made up of 7 coils.What adopt is three coils method of excitations simultaneously of powering mutually.
Fig. 2 is the cut-away view of the present invention's a kind of concrete structure of " directly adopting this integer linear oscillating motor of three-phase alternating current starting operation ".What it adopted is the method for unicoil or twin coil while excitation.But also can adopt the supply power mode operation of direct-current switch power supply.
Fig. 3 is the cut-away view of the present invention's a kind of concrete structure of " directly adopting this integer linear oscillating motor of three-phase alternating current starting operation ".What it adopted is the twin coil method of excitation simultaneously.But also can adopt the supply power mode operation of direct-current switch power supply.
Fig. 4 is the cut-away view of the present invention's a kind of concrete structure of " directly adopting this integer linear oscillating motor of three-phase alternating current starting operation ".What it adopted is the twin coil method of excitation simultaneously.But also can adopt the two-phase induction motor of direct-current switch power supply power supply to use.
Fig. 5 is the cut-away view of the present invention's a kind of concrete structure of " directly adopting this integer linear oscillating motor of three-phase alternating current starting operation ".What it adopted is the twin coil method of excitation simultaneously.But also can adopt the two-phase induction motor of direct-current switch power supply power supply to use.This motor has straight line pump feature.
Fig. 6 is a kind of drive circuit of the present invention's " linear oscillating motor ", and what it adopted is the pattern of switching mode supply power mode and 3 coils whiles of single-phase energising excitation.
Fig. 7 is a kind of drive circuit of the present invention's " linear oscillating motor ", employing be 3 patterns of switching on 3 coil magnetizations mutually, and by mechanical type optical coupled switch control operation.
Fig. 8 is a kind of Unipolar driving circuit that the present invention " directly adopts this integer linear oscillating motor of three-phase alternating current starting operation " and adopts.
Fig. 9 is the present invention's a kind of twin coil of " directly adopting this integer linear oscillating motor of three-phase alternating current starting operation " and being adopted Unipolar driving circuit of excitation simultaneously.
Figure 10 is a kind of bipolarity drive circuit that the present invention " directly adopts this integer linear oscillating motor of three-phase alternating current starting operation " and adopted.
Figure 11 is a kind of electric machine structure cut-away view that makes mover core band feather key bracing or strutting arrangement of the present invention's " linear oscillating motor ".Can adopt 3 coils of three-phase alternating current (6 phase pulse direct current) Unipolar driving circuit starting operation of excitation simultaneously.Also can adopt 6 phase direct-current switch power supply powered operations.
Figure 12 be the present invention " directly adopt this integer linear oscillating motor of three-phase alternating current starting operation " and adopted a kind of by 3 coils Unipolar driving circuit of excitations simultaneously.
Embodiment:
Below in conjunction with description of drawings with concrete execution mode.The present invention is described in further detail.
According to shown in Figure 1, this is a kind of 5 phase linear oscillating motors, and it is to have independent outer yoke 9,10,11 unshakable in one's determination with 7; 12,13,14; 15,16,17; 18,19,20; 21,22,23; 24,25,26; 27,28,29 magnet exciting coil A, B, C, D, E, F, G axially superpose, and make the polarity of the magnetic field of all magnet exciting coils identical and can both remain unchanged in the linear reciprocation running of whole motor.Polyimides residual shim 33,34 by two ends and aluminium alloy side plate (end cap) 30,31 and nut (not shown) are connected and fixed them, then, select to equate with three magnet exciting coil overall length and repeatedly make the mover core 35 that forms, be moulded one by polyimide material 36 and take-off lever 37 embeddings with silicon steel sheet.The two ends of this take-off lever form sliding pairs with tin bronze axle sleeve 40 on being embedded in aluminium alloy side plate 30,31 centers and cooperate.Simultaneously, also at mover core 3) on the position on take-off lever 37 both sides, have the slips that two guide posts made from the manganese brass pipe (not cuing open) match and use the hole.These two two guide posts of making of the manganese brass pipe 38,39 are fixed on the aluminium alloy side plate 30,31 at motor two ends.The power output shaft bar 37 of mover core 35 forms with the tin bronze axle sleeve at motor two ends 40 and is slidingly matched, and is stood in the shaft core position of motor by frame.Constituted the total movement mechanism of whole linear oscillating motor.During work, adopt dc switch type supply power mode, reciprocally switch on and off 5 switches that connect 7 magnet exciting coils successively.Alternately property ground provides the drive current of motor positive movement and work magnetic field formation straight reciprocating motion that heterodromous drive current ABC--BCD-CDE-DEF-EFG-ED-EDC-DCB-CBA makes motor interior, thereby the synchronous linear that has driven mover core back and forth moves.The 32nd, motor housing, the 41st, the hole is used in the suction and discharge exchange of motor.According to the specification of this mover core, this motor can also be used as 3 phase linear oscillating motors and use and adopt the dc switch type supply power mode operation of excitation simultaneously of 5 coils.Also can be used as " this integer linear oscillating motor that directly adopts the three-phase alternating current starting operation " uses and adopts the mode of 5 coil homophase excitations to move.
According to shown in Figure 2, this is a kind of this integer linear oscillating motor that directly three-phase alternating current is inserted starting operation.It is the magnet exciting coil L that has independent outer yoke unshakable in one's determination with 3
1L
2L
3Shell 3 by polyimides magnetic isolation plate 9,10 end caps 1,2 and motor is connected and fixed.Mover core 4 is rigidly connected with power output shaft bar 8 by the terne metal 5 of LMP.The two ends of power output shaft bar 8 and tin bronze axle sleeve 6,7 on being arranged on electric motor end cap 1,2 form sliding pairs and cooperate frame also to stand on the shaft core position of motor.Constituted the total movement mechanism of whole linear oscillating motor.The cut-in method of its three-phase alternating current that adopts is: earlier with " upper half with the A phase passes through non-return diode V successively earlier
1Magnet exciting coil L
1After be connected in zero line; Be successively with the lower half of C phase from the zero line directly by magnet exciting coil L
2After be connected in the live wire of C phase; Be successively by unidirectional transistor V more successively with the upper half of B phase
2Magnet exciting coil L
3After be connected in zero line.(more than be the power-up sequence of motor positive movement).Then, again with the lower half of A phase from the zero line successively by the B phase excitation coil L in the middle of the motor positive movement power-up sequence
3After, by unidirectional transistor V
3Be connected in the live wire of A phase; Be by the C phase excitation coil L in the middle of the motor positive movement power-up sequence successively with the upper half of C phase
2After, be connected in zero line; Be successively again with the lower half of B phase from the zero line successively by the A phase excitation coil L in the middle of the motor positive movement power-up sequence
1After, again by unidirectional transistor V
4Be connected in the fire of B phase ".By this access way, make the crest voltage and the Changing Pattern of magnetic field intensity on the motor interior locus of the pulsating direct current generation of 6 half-waves of three-phase alternating current, satisfy the job requirement of linear oscillating motor fully, form the linear reciprocation operation at motor internal thereby drive mover core.The 3rd, the shell of motor leaves the space between the shell of motor and each magnet exciting coil, also have heat radiation to the discharge orifice (not shown) in the top and bottom of motor casing.
According to shown in Figure 3, this is a kind of this integer linear oscillating motor that directly three-phase alternating current is inserted starting operation.It is the magnet exciting coil L that has independent outer yoke unshakable in one's determination with 4
1L
2L
3L
4Shell 13 by polyimides magnetic isolation plate 1,2 end caps 3,4 and motor is connected and fixed.Mover core 10 is rigidly connected with power output shaft bar 12 by the terne metal 11 of LMP.The two ends of power output shaft bar 12 and tin bronze axle sleeve 6,7 on being arranged on electric motor end cap 3,4 form sliding pairs and cooperate frame also to stand on the shaft core position of motor.Constituted the total movement mechanism of whole linear oscillating motor.The cut-in method of its three-phase alternating current that adopts is: earlier with the upper half of A phase successively by two non-return diodes in rectifier diode and two shunt and the magnet exciting coil L that is connected
1And L
2After, be connected in zero line by non-return diode again; The lower half of C phase from the zero line by two non-return diodes in rectifier diode and two shunt and the magnet exciting coil L that is connected
2And L
3After, be connected in the live wire of C phase again by non-return diode; The upper half of B phase successively by rectifier diode with two shunt on two non-return diodes and the magnet exciting coil L that is connected
3And L
4After, be connected in zero line by non-return diode again; And then with the lower half of A phase from the zero line successively by rectifier diode with two shunt on two non-return diodes and the magnet exciting coil L that is connected
3And L
4After, be connected in the live wire of A phase again by non-return diode; The upper half of C phase is successively by two non-return diodes in rectifier diode and two shunt and the magnet exciting coil L that is connected
2And L
3After, be connected in zero line by non-return diode again; B phase lower half from zero line successively by rectifier diode with two shunt on two non-return diodes and the magnet exciting coil L that is connected
1And L
2After, connect the live wire that is directed to the B phase by non-return diode again.During work, rely on 6 crest voltages moving back and forth in the middle of linear oscillating motor of the generation of three-phase alternating current, make mover core form the linear reciprocation operation at motor internal.Also be provided with the damping pad 8,9,5th of silicon rubber in addition, motor casing and magnet exciting coil L at the two ends of motor internal
1L
2L
3L
4Between mezzanine space, the upper and lower part in this space all is provided with the cross-ventilation hole.
According to shown in Figure 4, this be a kind of this integer linear oscillating motor that directly three-phase alternating current is inserted starting operation it be the magnet exciting coil L that has independent outer yoke unshakable in one's determination with 4
1L
2L
3L
4Two magnetic buffering coil L with two ends
5And L
6. the shell 3 by polyimides magnetic isolation plate 9,12 end caps 1,2 and motor is connected and fixed.Each magnetic buffering coil L
5, L
6All with adjacent magnet exciting coil formation relation (L in parallel
5To L
4, L
6To L
1), and make their (L
5And L
4, L
6And L
1) polarity of the magnetic field become on the contrary.Mover core 4 is rigidly connected by the terne metal (not shown) and the power output shaft bar 5 of LMP.The two ends of power output shaft bar 5 and tin bronze axle sleeve 6,7 on being arranged on electric motor end cap 1,2 form sliding pairs and cooperate frame also to stand on the shaft core position of motor.Constituted the total movement mechanism of whole linear oscillating motor.In addition, also have radial slot 8 on the polyimides magnetic isolation plate 12 of motor one end, this radial slot 8 communicates with the shell 3 volume inside interlayers 10 of motor and the hole 11 of motor other end casing 3.Also around the tin bronze axle sleeve of electric motor end cap 1, have a plurality of intake and exhaust simultaneously and use hole (as: 7,13).The cut-in method of this linear reciprocating three-phase alternating current that stepping motor adopts is: earlier with the upper half of A phase successively by two non-return diodes in rectifier diode and two shunt and the magnet exciting coil L that is connected
1And L
2After, be connected in zero line by non-return diode again; The lower half of C phase from the zero line by two non-return diodes in rectifier diode and two shunt and the magnet exciting coil L that is connected
2And L
3After, be connected in the live wire of C phase again by non-return diode; The upper half of B phase successively by rectifier diode with two shunt on two non-return diodes and the magnet exciting coil L that is connected
3And L
4After, be connected in zero line by non-return diode again; And then with the lower half of A phase from the zero line successively by rectifier diode with two shunt on two non-return diodes and the magnet exciting coil L that is connected
3And L
4After, be connected in the live wire of A phase again by non-return diode; The upper half of C phase is successively by two non-return diodes in rectifier diode and two shunt and the magnet exciting coil L that is connected
2And L
3After, be connected in zero line by non-return diode again; B phase lower half from zero line successively by rectifier diode with two shunt on two non-return diodes and the magnet exciting coil L that is connected
1And L
2After, connect the live wire that is directed to the B phase by non-return diode again.During work, rely on 6 crest voltages moving back and forth in the middle of linear oscillating motor of the generation of three-phase alternating current, make mover core form the linear reciprocation operation at motor internal.
According to shown in Figure 5, this be a kind of this integer linear oscillating motor that directly three-phase alternating current is inserted starting operation it be the magnet exciting coil L that has independent outer yoke unshakable in one's determination with 4
1L
2L
3L
4The connection side plate 2,3 and the nut 4,5 of the nonmagnetic substance by two ends are fixed on them on the cylinder type hollow stator 1 of nonmagnetic substance.Then, put into one in the inside of cylinder type hollow stator 1 one-way control valve and the outside cylinder type mover core 8 that has metallic piston ring 6,7 are housed in inside.Constituted the total movement mechanism of whole linear oscillating motor.This linear oscillating motor has the feature of linear compressor.As long as at the two ends of cylinder type hollow stator 1, respectively adorn one go up and the identical one-way control valve of one-way control valve positive direction of cylinder type mover core 8 inside.Just can constitute the straight line pump of a big stroke.The cut-in method of three-phase alternating current that this linear oscillating motor adopts is: earlier with the upper half of A phase successively by two non-return diodes in rectifier diode and two shunt and the magnet exciting coil L that is connected
1And L
2After, be connected in zero line by non-return diode again; The lower half of C phase from the zero line by two non-return diodes in rectifier diode and two shunt and the magnet exciting coil L that is connected
2And L
3After, be connected in the live wire of C phase again by non-return diode; The upper half of B phase successively by rectifier diode with two shunt on two non-return diodes and the magnet exciting coil L that is connected
3And L
4After, be connected in zero line by non-return diode again; And then with the lower half of A phase from the zero line successively by rectifier diode with two shunt on two non-return diodes and the magnet exciting coil L that is connected
3And L
4After, be connected in the live wire of A phase again by non-return diode; The upper half of C phase is successively by two non-return diodes in rectifier diode and two shunt and the magnet exciting coil L that is connected
2And L
3After, be connected in zero line by non-return diode again; B phase lower half from zero line successively by rectifier diode with two shunt on two non-return diodes and the magnet exciting coil L that is connected
1And L
2After, connect the live wire that is directed to the B phase by non-return diode again.Rely on 6 crest voltages moving back and forth in the middle of linear oscillating motor of the generation of three-phase alternating current during work, make mover core form the linear reciprocation operation at motor internal.
According to shown in Figure 6, this is the two Voltag driving circuits by 5 phases, the 7 coil linear oscillating motors of 3 coils whiles of single-phase energising excitation of pulse ring distributor control.It is to utilize pulse ring distributor (not shown), according to the main switch triode V of each phase excitation coil ABCDEFG
1V
2V
3V
4V
5(pass through main switch triode V putting in order of motor internal as the 1st phase current
1Be connected magnet exciting coil A, B, C and pass through non-return diode formation loop with the non-return diode in the shunt; The 2nd phase current is by main switch triode V
2Be connected magnet exciting coil B, C, D and pass through non-return diode formation loop with the non-return diode in the shunt; The 3rd phase phase current is by main switch triode V
3Be connected magnet exciting coil C, D, E and pass through non-return diode formation loop with the non-return diode in the shunt; The 4th phase phase current is by main switch triode V
4Be connected magnet exciting coil DEF and constitute the loop with the non-return diode in the shunt by non-return diode; The 5th phase current is by main switch triode V
5Be connected magnet exciting coil EFG with non-return diode in the shunt and constitute the loop by non-return diode), by ring distributor to main switch triode V
1V
2V
3V
4V
5Carry out the control of periodic back and forth break-make, (drive current as positive movement is: the heterodromous drive current of ABC-BCD-CDE--DEF-EFG is: FED-EDC---DCB--CBA), make motor produce the linear reciprocation operation to make its drive current that can alternately provide the motor positive movement and heterodromous drive current.
In the middle of this drive circuit, between each adjacent magnet exciting coil, adopt overlapping or cross-connection system, so that in the middle of each stepping of motor, make each each adjacent magnet exciting coil can both obtain the effect of two-phase or the above heterogeneous overlapping power supply of two-phase continuously.That is: when last phase current is turned off, back one phase current still can make the part magnet exciting coil that is acted on by last phase current keep "on" position, before and after the on-off phenomenon of phase before mainly being reflected in the first mutually and after mutually on the magnet exciting coil of position, end (as ABC-BCD--central A and D, wherein ABC is last phase, BCD is back one phase, and the rest may be inferred by analogy).
In the middle of this drive circuit, between the input of every phase main switch triode and connection magnet exciting coil, all be provided with non-return diode.Between the output of each magnet exciting coil and loop, also all be provided with non-return diode.And at the output of each magnet exciting coil switching sequence to the position between the non-return diode according to magnet exciting coil, from the output that is de-energized magnet exciting coil the high pressure overcurrent that is turned off the coil generation is passed through non-return diode, guide input one end of the next magnet exciting coil that is starting into.Form the electrical time constant that two voltage driving modes reduce each magnet exciting coil.
In the middle of this drive circuit, can be according to the main switch triode V of each phase excitation coil
1V
2V
3V
4V
5Putting in order on the locus is except prime minister's (the 1st phase) main switch triode V
1With last (the 5th phase) mutually main switch triode V
5The base lead end be outside one (end 1 and end 5), remaining main switch triode V
2V
3V
4The base lead end be two (the base lead end as the 2nd phase main switch triode be 8 and 2; The 3rd phase main switch triode V
3The base lead end be 7 and 3; The 4th phase main switch triode V
4The base lead end be 4 and 6; ) to adapt to the allocation model of the continuous 1--2--3--4--5-6--7 of ring distributor head-8-1--2--3--4--5--6--7--8--.
According to shown in Figure 7, this is 57 coils and the two Voltag driving circuits that can carry out 3 excitations when identical mutually by optical coupled switch control.Matching used with it is that a kind of utilization joins end to end, is equally distributed on 12 phototriode VD on the fixed grating dish
1VD
2VD
3VD
4VD
5VD
6VD
7VD
2' VD
3' VD
4' VD
5' VD
6' (" VD wherein
2' VD
3' VD
4' VD
5' VD
6' " do not show in the drawings) and with the removable slit dish on one can allow the arc grating seam of 3 phototriodes conductings simultaneously and constitute with the corresponding fixed light source tray of fixed grating dish and drive optocoupler control switch (figure slightly) by micromotor.7 phototriode VD in the middle of this drive circuit
1VD
2VD
3VD
4VD
5VD
6VD
7, except three grades of VD of prime minister's main switch photoelectricity
1With the last phototriode of main switch mutually VD
7Outward, remaining main switch phototriode VD
2VD
3VD
4VD
5VD
6All be provided with the phototriode VD that is in parallel with them
2' VD
3' VD
4' VD
5' VD
67 main switch phototriodes of ' (not shown) are connected with 7 magnet exciting coil ABCDEFG in the middle of the linear oscillating motor successively, and at the leading-out terminal of each magnet exciting coil by non-return diode and power supply formation loop.Simultaneously, also between the leading-out terminal of each magnet exciting coil and the non-return diode in the middle of the electric power loop, establish branch road and non-return diode in addition, be de-energized the high pressure overcurrent that magnet exciting coil produces and directly import the next magnet exciting coil that is starting by non-return diode previous.The effect that its two voltages that obtain are started fast (as: imports D to A; B is imported E; C is imported F; D is imported G; E is imported B; F is imported C; G is imported D; D is imported A.)。During work, by the optocoupler control switch each phase excitation coil ABCDEFG is carried out the control of switch clocklike and alternately provide motor definite value positive movement drive current (--ABC--BCD-CDE--DEF-EFG) and the heterodromous drive current of definite value (-FED---EDC---DCB-CBA---) make mover core form the linear reciprocation operation at motor internal.
According to shown in Figure 8, this is a kind of employed a kind of Unipolar driving circuit of this integer linear oscillating motor of direct access three-phase alternating current starting operation.It is by rectifier diode V
1V
4V
5V
7V
9V
12With non-return diode V
2V
3V
6V
8V
10V
11The three-phase alternating current phase-splitting is rectified into the pulsating direct current of 6 half-waves, and sequencing that forms by its crest voltage and linear oscillating motor the reciprocating motion rule of requirement work magnetic field on the locus, be connected with each phase excitation coil in the middle of the linear oscillating motor according to order, and make it satisfy the work magnetic field requirement of linear oscillating motor fully.Concrete method of operation is: the upper half with the A phase passes through rectifier diode V successively earlier
1Magnet exciting coil L
1Non-return diode V
2After be connected in zero line; The lower half of C phase passes through rectifier diode V successively from zero line
4Magnet exciting coil L
2Rectifier diode V
3After be connected in the live wire of C phase; The upper half of B phase is successively by rectifier diode V
5Magnet exciting coil L
3Non-return diode V
6After be connected in zero line.(more than be the power-up sequence of motor positive movement) then, again with the lower half of A phase from the zero line successively by rectifier diode V
7Import the central B phase excitation coil L of motor positive movement power-up sequence
3Input after, again from its output by non-return diode V
8Be connected in the live wire of A phase; The upper half of C phase passes through rectifier diode V successively from zero line
9Import the central C phase excitation coil L of motor positive movement power-up sequence
2Input after, again from its output by non-return diode V
10Be connected in zero line; The lower half of B phase passes through rectifier diode V successively from zero line
12Import the central A phase excitation coil L of motor positive movement power-up sequence
1Input after, again from its output by non-return diode V
11Be connected in the live wire of B phase.By this access way, the regularity of distribution of crest voltage in the middle of reciprocating linear motor that alternating current is produced satisfied the work magnetic field requirement of linear reciprocating stepping motor fully.
According to shown in Figure 9, this is a kind of employed a kind of Unipolar driving circuit by twin coil while excitation of this integer linear oscillating motor of direct access three-phase alternating current starting operation.It is by rectifier diode V
1V
4V
7And V
10V
12V
13And the non-return diode V of each magnet exciting coil input
2V
3V
5V
6V
8V
9Non-return diode V with magnet exciting coil output upper end
15V
16V
17V
18V
11V
19V
14The pulsating direct current that three-phase alternating current is divided 6 half-waves that commutating phase obtains, the sequencing and the linear oscillating motor that form according to its crest voltage require the reciprocating motion rule of work magnetic field on the locus, advance shape with each phase excitation coil in the middle of the linear oscillating motor and be connected, and make it satisfy the linear reciprocating stepping motor fully work magnetic field requirement.
Concrete method of operation is: the upper half with the A phase passes through rectifier diode V successively earlier
1With the non-return diode V on the parallel branch
2V
3Magnet exciting coil L
1L
2Non-return diode V
15V
16After be connected in zero line; Be successively with the lower half of C phase from the zero line successively by rectifier diode V
4With the non-return diode V on the parallel branch
5V
6Magnet exciting coil L
2L
3Non-return diode V
19After be connected in the live wire of C phase; Be successively by rectifier diode V more successively with the upper half of B phase
7With the non-return diode V on the parallel branch
8V
9Magnet exciting coil L
3L
4Non-return diode V
17V
18After be connected in zero line.(more than be the power-up sequence of motor positive movement) then, again with the lower half of A phase from the zero line successively by rectifier diode (V
10) and parallel branch on non-return diode V
8V
9Import the central B phase excitation coil L of motor positive movement power-up sequence
3L
4After, again from magnet exciting coil L
3L
4Leading-out terminal by non-return diode V
11Be connected in the live wire of A phase; Be successively by rectifier diode V successively with the upper half of C phase
12With the non-return diode V on the parallel branch
5V
6Import the central C phase excitation coil L of motor positive movement power-up sequence
2L
3After, pass through non-return diode V from its output again
16V
17Be connected in zero line; Be successively again with the lower half of B phase from the zero line successively by rectifier diode V
13With the non-return diode V on the parallel branch
2V
3Import the central A phase excitation coil L of motor positive movement power-up sequence
1L
2After, pass through non-return diode V from its output again
14Be connected in the live wire of B phase.By this access way, the regularity of distribution of crest voltage in the middle of reciprocating linear motor that alternating current is produced satisfied the work magnetic field requirement of linear reciprocating stepping motor fully.Non-return diode V in the middle of this drive circuit
15V
16V
17V
16And V
11V
14V
19All can simplify.
According to shown in Figure 10, this is a kind of employed a kind of bipolarity drive circuit of this integer linear oscillating motor of direct access three-phase alternating current starting operation.It is by rectifier diode V
1V
2With non-return diode V
3V
46 half-wave pulsating direct currents that divide commutating phase to obtain from three-phase alternating current, the sequencing and the linear oscillating motor that form according to its crest voltage require the reciprocating motion rule of work magnetic field on the locus, according to each the phase excitation coil L in the middle of sequencing and the linear oscillating motor
1L
2L
3Connect, and make it satisfy the work magnetic field requirement of linear reciprocating stepping motor fully.Its concrete operation method is: the upper half with the A phase passes through rectifier diode V successively earlier
1Magnet exciting coil L
1After be connected in zero line; Be successively with the lower half of C phase from the zero line directly by magnet exciting coil L
2After be connected in the live wire of C phase; Be successively by rectifier diode V more successively with the upper half of B phase
2Magnet exciting coil L
3After be connected in zero line.(more than be the power-up sequence of motor positive movement) then, again with the lower half of A phase from the zero line successively by the B phase excitation coil L in the middle of the motor positive movement power-up sequence
3After, by non-return diode V
3Be connected in the live wire of A phase; Be by the C phase excitation coil L in the middle of the motor positive movement power-up sequence successively with the upper half of C phase
2After, be connected in zero line; Be successively again with the lower half of B phase from the zero line successively by the A phase excitation coil L in the middle of the motor positive movement power-up sequence
1After, again by non-return diode V
4Be connected in the live wire of B phase.
According to shown in Figure 11, this is a kind of this integer linear oscillating motor of direct access three-phase alternating current starting operation.It is the magnet exciting coil L that has independent outer yoke unshakable in one's determination with 5
1L
2L
3L
4L
5Axially be superimposed upon the periphery that makes and have on the wall hollow stator body 7 of chute (not shown) with ledrite within it, and they be connected and fixed by the polyimides residual shim 1,2 at two ends and the side plate 3,4 and the bolt (not shown) of making of brass.Then, be not more than three magnet exciting coils to one (as L by top ledrite bearing fixing block piece 5,6 and the power output shaft bar 10 that has the air-vent (not shown) again
1L
2L
3) total length and with the electrical pure iron manufacturing and have feather key projection 8 and chrome faced hollow mover core 9 is placed in the shaft core position of motor axially superposes.Between hollow mover core 9 and power output shaft bar 10, fixedly connected by the terne metal (not shown) of LMP.The chute (not shown) of feather key projection 8 on the hollow mover core on ledrite hollow stator (7) inwall forms and is slidingly matched.The two ends of power output shaft bar (10) form in ledrite bearing fixing block piece 5,6 and are slidingly matched.
During work, adopt three coils pattern of excitation simultaneously, and the work magnetic field requirement of linear oscillating motor is satisfied in the reasonable distribution of 6 crest voltages in the middle of linear oscillating motor that relies on three-phase alternating current to divide commutating phase to obtain.Make mover core form the linear reciprocation operation at motor internal.
According to shown in Figure 12, this is a kind of employed Unipolar driving circuit of this integer linear oscillating motor of direct access three-phase alternating current starting operation.It is by rectifier diode V
1V
2V
3V
7V
8V
9Three-phase alternating current is divided into 6 half-wave pulsating direct currents, and according to the formation of its crest voltage order A
JustC
NegativeB
JustA
NegativeC
JustB
NegativeWith linear oscillating motor forward drive L
1L
2L
3---L
2L
3L
4-L
3L
4L
5With reverse drive L
3L
4L
5 -L
2L
3L
4-L
1L
2L
3The characteristics of motion in the work magnetic field that requires is connected corresponding magnet exciting coil L to them
1L
2L
3L
4L
5On.Satisfy the need of work of linear reciprocating stepping motor.Its concrete operation method is: the upper half with the A phase passes through rectifier diode V successively earlier
1With the non-return diode V in three shunt in parallel
13V
14V
19, magnet exciting coil L
1L
2L
3And non-return diode V
4V
5V
6After, be connected in zero line; Lower half with the C phase passes through rectifier diode V from zero line again
7With the non-return diode V in three shunt in parallel
15V
16V
20Magnet exciting coil L
2L
3L
4And non-return diode V
12After, be connected in the live wire of C phase; Upper half with the B phase passes through rectifier diode V successively again
3With the non-return diode V in three shunt in parallel
17V
18V
21, magnet exciting coil L
3L
4L
5And non-return diode V
4V
5V
6After, be connected in zero line; (more than be the power-up sequence of motor positive movement) then, again with the lower half of A phase from the zero line successively by rectifier diode (V
9) and three non-return diode V on along separate routes in parallel
17V
18V
21After, import the central B phase excitation coil L of motor positive movement power-up sequence
3L
4L
5After, pass through non-return diode V again
10Be connected in the live wire of A phase; Upper half with the C phase passes through rectifier diode V successively again
2With the unilateral diode V in three shunt in parallel
15V
16V
20After, import the central C phase excitation coil L of motor positive movement power-up sequence
2L
3L
4After, pass through non-return diode V again
4V
5V
6Be connected in line; Lower half with the B phase passes through rectifier diode V successively from zero line again
8With the non-return diode V in three shunt in parallel
13V
14V
19After, import the central A phase excitation coil L of motor positive movement power-up sequence
1L
2L
3And through non-return diode V
11Be connected in the live wire of B phase; By this access way, the regularity of distribution of crest voltage in the middle of reciprocating linear motor that alternating current is produced satisfied the work magnetic field requirement of linear reciprocating stepping motor fully.Non-return diode V in the middle of this drive circuit
4V
5V
6Can also simplify.
Claims (10)
1, a kind of linear oscillating motor, it is that the magnet exciting coil that has independent outer yoke unshakable in one's determination with three-phase or more than the three-phase axially superposes, and make their polarity of the magnetic field identical and rely in the middle of side plate with holes or end cap support and nut or bolt they are connected and fixed.Mover core is made by soft magnetic material, and the power output shaft bar of mover core passes the axis hole of side plate or end cap, and frame stands on the shaft core position of motor.Constitute the total movement mechanism of whole linear oscillating motor.During work, adopt dc switch type power supply, and the electric current of each phase excitation coil is carried out break-make control according to certain rules, and the work magnetic field that each phase excitation coil is produced forms reciprocating motion at motor internal, thus the synchronous linear that has driven mover core back and forth moves.It is characterized in that: the polarity of the magnetic field of described magnet exciting coil (ABCDEFG) remains unanimity in the linear reciprocation running of whole motor.The outer yoke unshakable in one's determination (9,10,11 of described independence; 12,13,14; 15,16,17; 18,19,20; 21,22,23; 24,25,26; 27,28,29) and between the power output shaft bar (37) of motor housing (32) and mover core (35) and the fixed support device (30,31), there is not direct ferromagnetic connection.Between described mover core (35) and the power output shaft bar (37), be provided with the excessive layer (36) of nonmagnetic substance.There is not any contact friction in the exterior arc surface of described mover core (35) (not containing the feather key projection) with surrounding space.Be provided with between described power output shaft bar (37) and side plate or the end cap and use the sliding shaft sleeve of making every the magnetic antifriction material (40).Between the inner space (44) of described linear oscillating motor and outside, also be provided with suction and discharge heat transmission hole (41).
2, according to the described a kind of linear oscillating motor of claim 1, it is characterized in that: its each phase excitation coil promptly can be that single magnet exciting coil composition also can be by forming after a plurality of magnet exciting coil parallel connections.Between each adjacent phase or each adjacent magnet exciting coil, adopt overlapping or cross-connection system, so that in the middle of each stepping of motor, make each each adjacent magnet exciting coil can both obtain the effect of two-phase or the above heterogeneous overlapping power supply of two-phase continuously.At the leading-out terminal of every phase main switch magnet exciting coil that triode connects to the position between the non-return diode, switching sequence according to magnet exciting coil, import in the middle of the next magnet exciting coil that is starting by other circuit and non-return diode being turned off high pressure overcurrent that coil produces, simultaneously, also will provide the loop by other circuit and non-return diode for the input that is turned off coil from the leading-out terminal that just starts magnet exciting coil.Reduce the electrical time constant of each magnet exciting coil in the middle of three-phase or the above linear oscillating motor of three-phase and the aftercurrent accelerating to be turned off in the middle of the magnet exciting coil discharges with the mode of this pair of driven.
3, a kind of linear oscillating motor, it is that the magnet exciting coil circle that has independent outer yoke unshakable in one's determination with three-phase or more than the three-phase axially superposes, and make their polarity of the magnetic field identical and rely in the middle of side plate with holes or end cap support and nut or bolt they are connected and fixed.Mover core is made by soft magnetic material, and the power output shaft bar of mover core passes the axis hole of side plate or end cap, and frame stands on the shaft core position of motor.Constitute the total movement mechanism of whole linear oscillating motor.Its each phase excitation coil can be by forming after a plurality of magnet exciting coil parallel connections.And between the input of each adjacent magnet exciting coil, use a kind of cross-connection system that can make each magnet exciting coil can both receive two-phase or the above heterogeneous overlapping power supply of two-phase continuously, that is: when the electric current of last phase main switch triode is turned off, the back electric current that provides of one phase main switch triode still can make by the part magnet exciting coil of last phase main switch triode control and keep "on" position, before the switch change of front and back between mutually is mainly reflected in the first mutually and after mutually on the magnet exciting coil at end.Can both receive two-phase continuously or the connected mode of overlapping power supply more than the two-phase by this each adjacent magnet exciting coil that makes, reduce the switching loss of magnet exciting coil.It is characterized in that: the polarity of the magnetic field of described magnet exciting coil (ABCDEFG) remains unanimity in the linear reciprocation running of whole motor.The outer yoke unshakable in one's determination (9,10,11 of described independence; 12,13,14; 15,16,17; 18,19,20; 21,22,23; 24,25,26; 27,28,29) and between the power output shaft bar (37) of motor housing (32) and mover core (35) and the fixed support device (30,31), there is not direct ferromagnetic connection.Between described mover core (35) and the power output shaft bar (37), be provided with the excessive layer (36) of nonmagnetic substance.There is not any contact friction in the exterior arc surface of described mover core (35) (not containing the feather key projection) with surrounding space.Be provided with between described power output shaft bar (37) and side plate or the end cap and use the sliding shaft sleeve of making every the magnetic antifriction material (40).Between the inner space (44) of described linear oscillating motor and outside, also be provided with suction and discharge heat transmission hole (41).During work, phase-splitting rectified action by diode, the three-phase alternating current phase-splitting is rectified into the pulsating direct current of 6 half-waves, and sequencing that forms by its crest voltage and linear oscillating motor the reciprocating motion rule of requirement work magnetic field on the locus, connect each central phase excitation coil of linear oscillating motor, make it satisfy the work magnetic field requirement of linear oscillating motor fully.It can adopt the operation of unipolarity drives also can adopt bipolar circuit to drive operation.As: when adopting the unipolarity drives,------be " earlier the upper half of A phase to be connected in zero line after successively by rectifier diode (the non-return diode that comprises homophase shunt excitation coil input end)--magnet exciting coil----non-return diode; The lower half of C phase--is connected in the live wire of C phase by rectifier diode (the non-return diode that comprises homophase shunt excitation coil input end) successively behind--magnet exciting coil-----non-return diode from zero line; The upper half of B phase is successively by rectifier diode (the non-return diode that comprises homophase shunt excitation coil input end)--is connected in zero line (more than be the power-up sequence of motor positive movement) behind--magnet exciting coil-----non-return diode.Then, again with the lower half of A phase from the zero line successively by behind the moving B phase excitation coil that drives in the middle of the power-up sequence of rectifier diode (the non-return diode that comprises homophase shunt excitation coil input end) and motor forward, be connected in the live wire of A phase again by non-return diode; The upper half of C phase by the C phase excitation coil in the middle of rectifier diode (the non-return diode that comprises homophase shunt excitation coil input end) and the motor forward drive power-up sequence after, be connected in the zero line of C phase again by non-return diode; The lower half of B phase successively by behind the A phase excitation coil in the middle of rectifier diode (the non-return diode that comprises homophase shunt excitation coil input end) and the motor forward drive power-up sequence, is connected in the live wire of B phase from the zero line again by non-return diode ".------then is that " upper half with the A phase passes through non-return diode (V successively earlier when adopting bipolar circuit to drive
1) magnet exciting coil (L
1) after be connected in zero line; Be successively with the lower half of C phase from the zero line directly by magnet exciting coil (L
2) after be connected in the live wire of C phase; Be successively by unidirectional transistor (V more successively with the upper half of B phase
2) magnet exciting coil (L
3) after be connected in zero line.(more than be the power-up sequence of motor positive movement).Then, again with the lower half of A phase from the zero line successively by the B phase excitation coil (L in the middle of the motor positive movement power-up sequence
3) after, by unidirectional transistor (V
3) be connected in the live wire of A phase; Be by the C phase excitation coil (L in the middle of the motor positive movement power-up sequence successively with the upper half of C phase
2) after, be connected in zero line; Be successively again with the lower half of B phase from the zero line successively by the A phase excitation coil (L in the middle of the motor positive movement power-up sequence
1) after, again by unidirectional transistor (V
4) be connected in the fire of B phase ".By this access way, make the crest voltage and the Changing Pattern of magnetic field intensity on the motor interior locus of the pulsating direct current generation of 6 half-waves of three-phase alternating current, satisfy the job requirement of linear oscillating motor fully, form the linear reciprocation operation at motor internal thereby drive mover core.
4, according to claim 1,2,3, described any linear oscillating motor, it is characterized in that: on mover core (35) body, have the axial hole (not shown) or on the exterior arc surface of mover core (35) body, have the axial notch (not shown), itself and be arranged on two electric motor end caps or side plate (30,31) between guiding slide bar (38,39) constitute the stable bracing or strutting arrangement of mover core (35).
5, according to claim 1,2,3,4 described any linear oscillating motors, it is characterized in that: the guiding slide bar (38,39) that is arranged on two motor internals is a hollow body, and both ends open communicates with atmosphere.
6, according to claim 1,2,3,4,5 described any linear oscillating motors, it is characterized in that: the guiding slide bar (38,39) that is arranged between two electric motor end caps or the side plate (30,31) is hollow obturator, a lubricant is equipped with in inside, and this lubricant (not shown) outwards discharges by the micropore (not shown) that is arranged on the hollow guiding slide bar (38,39).On the end cap of motor or side plate, have the intake and exhaust louvre.
7, according to claim 1,2,3,4,5,6 described any linear oscillating motors, it is characterized in that: between the end cap or side plate of the inwall of magnet exciting coil and two motors, be provided with the body of nonferromagnetic material, have a plurality of keyways on the inwall of this body, the feather key projection formation on this keyway and the mover core is slidingly matched.The exterior arc surface of mover core also leaves air gap between the intrados of nonferromagnetic material body.
8, according to claim 1,2,3,4,5,6 described any linear oscillating motors, it is characterized in that: it can also adopt the control technology of existing stepping motor, finishes the work of carrying out stepping motor.
9, a kind of direct current ring distributor that drives by micromotor.Be applicable to that the above linear oscillating motor of three-phase or three-phase uses.It is characterized in that: by rotor frame the box of the carbon brush that connects each phase excitation coil by the fixed installation carbon brush, be evenly distributed in rotor around, and the cambered surface of each carbon brush is contacted with the extrados formation elastic pressure of rotor.Rotor block is by the insulating properties material.Source current relies on power source brush by a finite region on the importing of the collector ring on the rotor shaft rotor extrados.During work, drive rotor rotation by micromotor, what make that epitrochanterian electric region territory slips over each phase excitation coil rotatably is subjected to electrical carbon brush arc face, realizes that the annular of direct current in the middle of each phase excitation coil distribute.Because the magnetic field that each phase excitation coil produces forms straight reciprocating motion at motor internal.Thereby make the mover core that is magnetized follow reciprocating magnetic field and form synchronous operation at motor internal.The velocity of rotation of adjusting micromotor can change the reciprocating frequency of linear oscillating motor.
10, a kind of reciprocating linear motor, it is characterized in that: axially be superimposed upon periphery by the magnet exciting coil that has independent outer yoke unshakable in one's determination more than three with the hollow stator of nonferromagnetic material, and make their polarity of the magnetic field identical with in the linear reciprocation running of whole motor, remain consistent.Install and fix side plate and nut by two ends, they are linked together, put in the inside of hollow stator then with soft magnetic material and make and be provided with the cylinder type mover core of unidirectional valve or the cylinder type mover core of solid permanent magnet or the making of " H " shape permanent magnet in inside.The periphery of this cylinder type mover core is provided with a plurality of metallic piston rings, during work, control the curtage of each phase excitation coil according to certain rules, make the work magnetic field of their generations or the zone of high-intensity magnetic field form reciprocating motion, thereby the synchronous linear that drives mover core back and forth move at motor internal.This linear oscillating motor has cylinder barrel and plunger feature, as long as install corresponding suction and discharge valve gear additional at two ends, just can be used as Linearkompressor and use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200810124823XA CN101604893A (en) | 2008-06-15 | 2008-06-15 | A kind of linear oscillating motor and optical coupled switch and drive circuit, yoke, mover, heat radiation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200810124823XA CN101604893A (en) | 2008-06-15 | 2008-06-15 | A kind of linear oscillating motor and optical coupled switch and drive circuit, yoke, mover, heat radiation |
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| Publication Number | Publication Date |
|---|---|
| CN101604893A true CN101604893A (en) | 2009-12-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA200810124823XA Pending CN101604893A (en) | 2008-06-15 | 2008-06-15 | A kind of linear oscillating motor and optical coupled switch and drive circuit, yoke, mover, heat radiation |
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| CN (1) | CN101604893A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103262185A (en) * | 2010-12-21 | 2013-08-21 | 三菱电机株式会社 | Electromagnetic manipulation apparatus |
| CN103532333A (en) * | 2013-09-22 | 2014-01-22 | 西安交通大学 | Reciprocating motor |
| CN103931090A (en) * | 2011-08-12 | 2014-07-16 | 胡祖平 | Electrically powered reciprocating motor |
| CN103955229A (en) * | 2014-04-10 | 2014-07-30 | 上海交通大学 | Precise and controllable sliding table devices and combination thereof |
| CN105071630A (en) * | 2015-08-21 | 2015-11-18 | 常州工学院 | Laminated magnetic suspension propeller |
| CN106849587A (en) * | 2017-03-14 | 2017-06-13 | 歌尔股份有限公司 | Linear vibration motor and electronic equipment |
| CN103955229B (en) * | 2014-04-10 | 2018-02-09 | 上海交通大学 | Accurate controllable slide rest device and combinations thereof |
| CN111089042A (en) * | 2019-12-04 | 2020-05-01 | 杭州电子科技大学 | Moving-coil linear compressor adopting double-coil structure |
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2008
- 2008-06-15 CN CNA200810124823XA patent/CN101604893A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103262185A (en) * | 2010-12-21 | 2013-08-21 | 三菱电机株式会社 | Electromagnetic manipulation apparatus |
| CN103262185B (en) * | 2010-12-21 | 2016-08-10 | 三菱电机株式会社 | Electromagnetic operating device |
| CN103931090A (en) * | 2011-08-12 | 2014-07-16 | 胡祖平 | Electrically powered reciprocating motor |
| CN103931090B (en) * | 2011-08-12 | 2017-11-28 | 胡祖平 | Electric reciprocating motor |
| CN103532333A (en) * | 2013-09-22 | 2014-01-22 | 西安交通大学 | Reciprocating motor |
| CN103955229A (en) * | 2014-04-10 | 2014-07-30 | 上海交通大学 | Precise and controllable sliding table devices and combination thereof |
| CN103955229B (en) * | 2014-04-10 | 2018-02-09 | 上海交通大学 | Accurate controllable slide rest device and combinations thereof |
| CN105071630A (en) * | 2015-08-21 | 2015-11-18 | 常州工学院 | Laminated magnetic suspension propeller |
| CN106849587A (en) * | 2017-03-14 | 2017-06-13 | 歌尔股份有限公司 | Linear vibration motor and electronic equipment |
| CN111089042A (en) * | 2019-12-04 | 2020-05-01 | 杭州电子科技大学 | Moving-coil linear compressor adopting double-coil structure |
| CN111089042B (en) * | 2019-12-04 | 2021-07-09 | 杭州电子科技大学 | Moving-coil linear compressor adopting double-coil structure |
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Application publication date: 20091216 |