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Small motor winding mould size determination method

1 double winding: core double winding winding mode as shown in. (Note: thecalculation results)


1. The length of the edge (mm): L=LFe+2L1


Type: L -- length of core linear part, mm;


LFe -- the length of the stator core, mm;


L1 -- coil linear portion extending core side length, mm; for the motor center height of 160mm and below, 15mm; center height of 180 ~ 225mm, is 20mm; motor center high above 250mm, 25mm.


PI (Di1+h+r1)


⑵. Width: By= -- -- -- y (mm)


Z1


Type: winding Y -- to slot number distance;


Di1, h, R1 see.


The hypotenuse length: Lx=K1*By


Type: K1 -- empirical coefficient, can be selected from the list below.


The number of poles


2


4


6


8


K1


0.62


0.6


0.58


0.58


The 2 single-layer concentric winding: (Note: the calculation results)


PI (Di1+h+r1)


⑴. Width: By= K2 * -- -- -- y (mm)


Z1


Type: K2 -- empirical coefficient, concentric windings, the q=4 0.745;concentric windings of q=5, 0.678.


⑵. Radius: R1=By1/2 (mm); R2=By2/2 (mm) R3=By3/2 (mm);


⑶. Straight edge length: L=LFe+2L1 (mm)


3 single cross winding: (Note: the calculation does not match)


PI (Di1+h+r1)


⑴. Width: By1= -- -- -- * (Y1x1) (mm)


Z1


PI (Di1+h+r1)


⑴. Width: By2= -- -- -- * (Y2x2) (mm)


Z1


Type: Y1, Y2 -- small circle, circle respectively to slot numberrepresentation of pitch;


Empirical data of x1, X2, press the table:


The number of poles


2


4


(small coil) x1


1.85


0.85


(large coil) x2


2.1


1.1


1. The length of the edge (mm): L=LFe+L1


⑵. Radius: R1=0.53*By1 (mm) R2=.055*By2 (mm)


4 single chain winding: (Note: the calculation does not match)


PI (Di1+h+r1)


⑴. Width: By= -- -- -- * (Yx3) (mm)


Z1


Type: X3 -- empirical data from 0.85, 4, 6, 8, 10 and 0.55.


The radius: R=0.625*By (mm)


⑶. Straight edge length: L=LFe+L1 (mm)


5 core thickness:


B=1.1ndi (mm)


Type: n -- each layer of wire root number, if a plurality of winding, N and around the root number per layer by turns;


Di -- a single insulated wires diameter (mm).


The motor power is small, b=8 ~ 10mm, the large power motor, b=10 ~ 15mm.


The 6 clamping plate size:


The same shape and mold core plywood, each side than the core release is about the length of the coil thickness e+ (5~10) mm, e coil thickness can be calculated as follows:


E=W1*nc*di/0.86b (mm)


Type in:


W1 -- the stator coils;


NC -- the stator coil and winding number;


B -- core thickness, (mm).


7 when winding of wire tension:


Should be adjusted according to the winding speed, wire diameter, the general should be controlled in the range of 21~31N/mm2. Winding machine for the general rate of 150~200r/min.


In the winding process, wire joint should be in the end edge part.


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