DD223307A1 - ONE OR MULTI-LOOP GRINDING FOR DC MACHINES - Google Patents

Abstract

THE INVENTION CONCERNS ONE OR MORE GRANULES FOR SIMILAR MACHINES WITH COIL WINDINGS> = 2 AND COMPENSATION LINKS 1. TYPE WHICH MAY ALSO APPLY AS COMPENSATING COMPOUNDS 2. ART. WHEREAS THE TASK IS TO OBTAIN ONE OR MORE EXTENDED GRINDING DEVELOPMENTS IN WHICH THE NUMBER OF NUMBER OF N-P QUOTIENT IS NOT AVAILABLE, AND WHEREAS THE PROBLEM OF AVOIDING COMPENSATING PROBLEMS IS RELIED UPON; IN THE PURPOSE OF THE INVENTION, THE TASK IS HELD THAT POINTS OF EQUAL VOLTAGE ARE CONNECTED TO THE COMMUTATOR AND WITHIN THE SPOOLS. IN ORDER TO RESTRICT THE SPOOL REMOVALS TO THE COMMUTATOR SIDE AS COMPENSATING CONNECTORS, THE SPOOL WINDING NUMBER IS DIVIDED INTO TWO COMPONENT.

Description

Title of the invention

Single or multiple-speed loop winding for DC machines

Field of application of the invention . :

The invention relates to one or menrgängige Scnleifenwicklungen for DC trom.iiaschinen with Spulenwincungs numbers - 2 and equalizing compounds of the first kind, oie given casei fertilize as a compensation verbin 2nd type can act. ,

Characteristic of the known technical solutions-n '

Quadruple multi-pole DC motors of low and medium power are preferably designed with vee-windings. we il damit'die effects of asymmetries in the magnetic circuit-Nazi uno equalizing currents ax 3ürsten most effective vermiecen vveraen .. The small number of parallel Anke rzvveige (2a = 2 * m) is cer application of .'nellenv-ilckluhgen limits.

With loop windings, a larger number of parallel armature branches (2a = 2p * m) can be realized, however, the problem of balancing trc.men is to be considered. The use of equalizing connections on the commutator sets the compliance with cer <3ym. ^r ne t riebecingungen for the windings z, 3. N _- = _K. = ahead of time. This means that Nutouno are Lamallenzanien

P U'p.

to exclude from the application, for the sake of small groove pulsationsmoiEente, a good concentricity at low speeds and other benefits of interest.

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It is also known that in 2-speed loop windings (rod windings, in machines of greater power) on the side facing away from the commutator compensating connector 2nd type connected and can be performed between shaft and armature yoke on the commutator (Pungaverbinder).

Object of the invention "

The aim of the invention is to provide single or multi-start loop windings in which the integerity of the

Quotient £ f = K is not given.

ρ u * p

Presentation of the essence, the invention .

The object of the invention is to solve the problem of avoiding compensation currents on the brushes under the specifications of the target division. ' ·''. ·. ^: ,

According to the invention, the on is solved by 1 ₁ that in single or multiple-speed loop windings for DC machines with coil winding numbers = 2 and non-integer quotient N [= _! <Points the same voltage at the commutator and within

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the coils are connected together. In order to restrict the coil discharges acting as equalizing connectors to the commutator side, the number of coil turns is divided by 2. In another embodiment, s is I, proven to be expedient to form the beginnings of ^{1-Ausgleichsver} .bindungen by Spulenarifange over half Polzahl.am commutator and the ends of the bonding connections in the other half of the poles as a tap, or coil . ', bend to the commutator lead.

Exemplary embodiment ,

The invention will be explained in more detail below with reference to two embodiments.

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The accompanying drawings show:

Fig. 1 is a 1-speed loop winding, 2p = 4, N = 29, K = 87, 2a = 4, commutator 1 - 2, winding step 1-8

2 shows a 2-turn loop winding, 2p. = A ₁ N = 37, K = 111, 2a = 8, commutator step 1-3, winding step 1-10

Figure 1 and 2 shows the commutator A with the associated number of blades K, the rotor B with the associated number N and the names of all sub-coils of the winding C, wherein part coil 1 of the groove 1 and the lamella 1 (winding start) is assigned. In the simplified winding diagram of the figure and 2 is left a coil group consisting of the sub-coils 1,2 and 3 without equalizing connections,. registered

Jn Figure 1 right part coil 44 is shown with the winding beginning in lamella 44, the winding end in lamella and a winding tap (wire loop) at 50 % of the number of turns as compensation connection to lamella 1. Further "compensating connections are in Figure 1, for example, in the sub-coils 50th _t : 56, 62, 58 _t 74 and 80 are provided so that distributed around the circumference 7 equalizing connections are effective.

In FIG. 2, the partial coil 56 is shown on the right with the development beginning in lamella 56, the winding end in lamella and a winding tappet (wire loop) at 50 % of the number of turns as compensation connection according to lamella 1. 'Further compensation connections are shown in FIG Partial coils 65, 74, 83, 92 and 101 are provided, so that at the periphery 6 compensating connections are effective.

Claims (3)

, Erfindunqsanspruch 1 »Single or multiple-speed loop winding for 'DC' machines with coil turns = 2 and compensating - connections _t characterized in that, for non-integer quotients, N [points of equal stress at the commutation and inside the coils are interconnected. 2. Single or multiple-speed loop winding for. Gleichstrom -.-. machines) 'according to item 1, characterized in that the coil winding number is divisible by 2. ' 3. Single or multiple-speed loop winding for DC machines according to Punkt .1 and 2 _t characterized »that the beginnings of the equalization compounds by .Spulehan beginning over half the number of poles are formed on the commutator and the ends of the compensating compounds in the '.an'deren half of Poles are led as a tap or coil loop to the commutator '. For this 2. sheet drawings