SE190503C1

SE190503C1 -

Info

Publication number: SE190503C1
Authority: SE
Publication date: 1964-01-01

Description

Uppfinnare: J J H Croymans och J F Brandwijk Prioritet begtird frail den 26 full 1960 (Nederlanderna) Foreliggande uppfinning avser sjalvstartande synkronmotorer, speciellt stegmotorer med lag effekt, omfattande -WA koaxiellt anordnade statorer och liadningar, varvid varje stator ar f5rsedd med polplattor pa varje plan sida hos motsvarande lindthng, vilka polplattor aro forsedda med polar som stracka sig i statorernas axiella riktning, varvid statorpolerna samverka med samma antal permanentmagnetiska nordpoler eller sydpoler pa en rotor, medan polerna pa den forsta statorn i ruin-met aro farskjutna ea 90 elektriska grader I forhallan.de till polerna pa den andra statorn. Uppfinningen kannetecknas darav, aft lindningen pa varje stator bestar air tvâ lika spolar, varvid en klamma pa varje spole ar separat uttagen och de aterstaende tva klammorna aro uttagna antingen separat eller kombinerade. Inventors: JJH Croymans and JF Brandwijk Priority from 26 Full 1960 (The Netherlands) corresponding windings, which pole plates are provided with poles extending in the axial direction of the stators, the stator poles cooperating with the same number of permanent magnetic north poles or south poles on a rotor, while the poles on the first stator in the ruin are offset by 90 electric degrees in the relation. those to the poles of the other stator. The invention can be characterized in that the winding on each stator consists of two identical coils, one clamp on each coil being taken out separately and the remaining two clamps being taken out either separately or in combination.

Detta medf8r en universa1motor som kan anvandas antingen som synkronmotor eller som stegmotor med n-steg eller 2n-steg per vary, varvid n beteeknar dubbna antalet polar ph en stator. This results in a universal motor that can be used either as a synchronous motor or as a stepper motor with n-steps or 2n-steps per vary, where n denotes double the number of polar ph a stator.

Enligt en annan egenskap hos uppfinningen kunna de fyra spolarna matas med pulser med samma polaritet men inb5rdes forskjutna 900. Pulserna kunna tillforas antingen pa elektronisk vag eller genom mekaniska medal, t. ex. medelst kollektorer eller omkopplare. I detta fall verkar motorn som en stegmotor med 2n steg per vary. According to another feature of the invention, the four coils can be fed with pulses of the same polarity but are mutually offset 900. The pulses can be applied either electronically or by mechanical medals, e.g. by means of collectors or switches. In this case, the motor acts as a stepper motor with 2n steps per vary.

Om de tva spolarna pa varje stator aro kopplade i serie, kan motorn arbeta som kondensatormotor som matas med va.xelstrom genom anslutning air spolarna pa den ena motorn direkt till natet och spolarna pa den andra eta-torn medelst en seriekondensator eller cm motorn matas med pulsar kan den fungera som stegmotor med n-steg per vary. If the two coils on each stator are connected in series, the motor can operate as a capacitor motor which is supplied with alternating current by connecting the air coils on one motor directly to the mains and the coils on the other stage by means of a series capacitor or the motor is fed with pulses, it can function as a stepping motor with n-steps per vary.

Uppfinningen beskrives narmare i det 151- jande med hanvisning till i bifogade ritning schematiskt visade exempel. The invention is described in more detail in the following with reference to the examples schematically shown in the accompanying drawing.

Fig. 1 visar motorn enligt uppfinningen och fig. 2 visar matningen Och motorns arbetssalt. Fig. 1 shows the engine according to the invention and Fig. 2 shows the feed And the engine salt of the engine.

I fig. 1 aro statorerna till vanster och hoger forsedda med karnor 3 och 4. Karnan 3 uppbar tva. spolar 5, 6, sum pa hada sidor arc forsedda med polplattor 9, 10 med poltander 13, 14. Kaman 4 uppbar tva spolar 7, 8, som pa hada sidor aro forsedda med polplattor 11 och 12 med poltander 15, 16. In Fig. 1, the stators on the left and right are provided with cores 3 and 4. The cores 3 carried two. coils 5, 6, sum on both sides arc provided with pole plates 9, 10 with pole teeth 13, 14. Kaman 4 carried two coils 7, 8, which on each side are provided with pole plates 11 and 12 with pole teeth 15, 16.

En permanentmagnetisk rotor 17 har ett antal poler lika med antalet pa varje stator. A permanent magnetic rotor 17 has a number of poles equal to the number on each stator.

I det visade exemplet aro tanderna pa statorerna 1 och 2 inbordes ft5rskjutna 90 elektriska grader, men det är tydligt att statorandarna alternativt kunna ligga mitt for varandra, om man anvander sig av tva rotorer, vars polar arc inbiirdes forskjutna 90 elektriska grader. In the example shown, the teeth on stators 1 and 2 are embedded in offset 90 electric degrees, but it is clear that the stator ends may alternatively be opposite each other, if two rotors are used, the polar arcs of which are offset by 90 electrical degrees.

Fig. 2 visar i en sprangskiss tanderna pa statorerna 1 och 2, varvid sex lagen hos rotorn 17 i fig. 1 visas for en stegmotor med 2n steg. Fig. 2 shows in an exploded view the teeth of the stators 1 and 2, the six layers of the rotor 17 in Fig. 1 being shown for a stepper motor with 2n steps.

Spolarna pa statorerna ha beteeknats med I, III respektive II, IV, varvid mittuttag anvandas. The coils on the stators have been designated I, III and II, IV, respectively, using center sockets.

Figuren visar aven tva roterande omkopplare eller kollektorer 18, 19, var och en. omfattande en kopplingsarm 20 respektive 21 cell tva kontaktringar 22 och 23 respektive 24 och 25, var och en tackande en bage air 135°. Kopplingsarmarna aro hopkopplade och in-hordes forskjutna 90°. Kopplingsarmarna arc anslutna t. ex. till den negativa klamman, och mittuttagen hos spolarna fill den positiva klamman hos en likspanningskalla. Verkningssattet hos anordningen an foljande. The figure also shows two rotary switches or collectors 18, 19, each. comprising a coupling arm 20 and 21, respectively, cell two contact rings 22 and 23 and 24 and 25, respectively, each thanks to a bage air 135 °. The coupling arms are interconnected and are 90 ° offset. The coupling arms arc connected e.g. to the negative clamp, and the center terminals of the coils fill the positive clamp of a DC voltage source. The mode of action of the device is as follows.

I det lage som visas i fig. 2 magnetiseras 2— polerna 26 och 27 av spolarna I och IV t. ex. pa sadant satt, att bada aro sydpoler och 28 och 29 hada aro nordpoler. Nordpolen hos rotorn vid age a är salunda belagen i det visade mellanlaget mellan 26 och 27. In the layer shown in Fig. 2, the 2-poles 26 and 27 are magnetized by the coils I and IV e.g. in this way, both ara south poles and 28 and 29 had ara north poles. The north pole of the rotor at age a is thus covered in the intermediate layer shown between 26 and 27.

Det antages att kopplingsarmarna vridas medurs. It is assumed that the coupling arms are turned clockwise.

Vid nasta la.ge hos armen 20 fir polen 26 alltjamt sydpol pa grund av spolen I, medan armen 21 lamnar ringen 24 och spolen IV är stromlos. Salunda vrides rotorn till laget b med sin nordpol mittemot 26. At the nearest layer of the arm 20, the pole 26 still carries the south pole due to the coil I, while the arm 21 leaves the ring 24 and the coil IV is without power. Salunda turns the rotor to team b with its north pole opposite 26.

I det tredje laget hos armen 20 är polen 26 alltjamt sydpol och 28 är nordpol, medan spolen II magnetiseras pa grund av kontakten mellan armen 20 och ringen 25, varigenom polen 29 blir sydpol i stallet fifyr nordpol. Salunda forskjutes rotorns nordpol till ett mellanlage markerat med c. In the third layer of the arm 20, the pole 26 is still the south pole and 28 is the north pole, while the coil II is magnetized due to the contact between the arm 20 and the ring 25, whereby the pole 29 becomes the south pole instead of the north pole. Salunda shifts the north pole of the rotor to an intermediate layer marked with c.

I sitt fjarde lage lamnar armen 20 ringen 22, varigenom spolen. I blir stromlos, medan 29 forblir en sydpol pa grund av spolen varigenom nordpolen pa rotorn forskjutes till laget d mittemot 29. In its fourth layer, the arm 20 leaves the ring 22, whereby the coil. You become without power, while 29 remains a south pole due to the coil whereby the north pole of the rotor is shifted to the layer d opposite 29.

I sitt ferrite lage gor armen 20 kontakt med ringen 23, varigenom spolen III magnetiseras och polariteterna hos tillMrande statorpoler vaxlas, dvs. polen 28 blir sydpol, medan 29 forblir sydpol. Foljaktligen fiirskjutes rotorn till ett lage som markerats med e, varvid nordpolen intar ett mellanlage mellan sydpolerna 28 och 29. In its ferrite, the arm 20 makes contact with the ring 23, whereby the coil III is magnetized and the polarities of the adjacent stator poles are waxed, i.e. pole 28 becomes the south pole, while 29 remains the south pole. Consequently, the rotor is advanced to a layer marked with e, the north pole occupying an intermediate layer between the south poles 28 and 29.

I del sjatte laget hos armen 20 är polen 28 alltjamt sydpol pa grund av spolen III, medan armen 21 lamnar ringen 25, varigenom spolen II blir stronalos. Polen 29 magnetiseras inte liingre, varigenom rotorn intar ett lage f med sin. nordpol mitt for pole. 28. In the sixth layer of the arm 20, the pole 28 is still the south pole due to the coil III, while the arm 21 leaves the ring 25, whereby the coil II becomes stronalos. Pole 29 is no longer magnetized, whereby the rotor takes a low f with its. my north pole for pole. 28.

Salunda ha spolarna I—TV, I,II, II— III och III successivt magnetiserats och fortsatta pa detta satt, varvid spolarna IV och IV—I magnetiseras sa, att varje period fullbordas. Pa grund av dessa mellanlä- gen är det salunda mojligt att erhalla 2n steg med anvandning av endast en lindning for varje statordel, enar Ivâ statorer utfOra arbetet hos fyra stab:wen Det är tydligt att statorpolerna alternativt kunna anordnas pa kant salt vid de inre periferierna hos spolarna. Thus, coils I-TV, I, II, II-III and III have been successively magnetized and continued in this way, the coils IV and IV-I being magnetized so that each period is completed. Due to these intermediate positions, it is thus possible to obtain 2 steps using only one winding for each stator part, one of which is to perform the work of four staffs: at the coils.

Claims

Patent claim:

A self-starting synchronous motor, in particular a stepping motor with low power, comprising two coaxially arranged stators and windings, each stator being provided with pole plates, one. on the flat side of the corresponding winding, which pole plates are provided with poles extending in the axial direction of the stators, the stator poles cooperating with the same number of permanent magnetic north poles or south poles on a rotor, while the poles on the first stator in space are offset approx. 90 electrical degrees relative to the poles of the other stator, characterized in that the lead on each stator consists of two equal coils, one clamp on each coil being removed separately and the two remaining clamps being taken out separately or together.

2. Self-starting synchronous motor according to claim 1, characterized in that the four coils max with pulses with the same polarity but were shifted 90 °.

Self-starting synchronous motor according to patent claim 2, frame-framed. from the fact that one coil on the first stator and the other coil on the other stator are successively supplied with pulses. Request publications: Patents (rim Sweden 88 382.