DE10317749A1 - Multi-phase motor - Google Patents

Abstract

Multi-phase motor with windings without coil overlap, with several coils of one phase next to one another and not overlapping as a coil group of one phase and a number of such coil groups corresponding to the number of phases of the winding also form a motor module next to one another without overlap, the total number of coils being an integer divisible by the number of phases of the windings and is 1 greater than the number of poles of the secondary part covered by the motor module and the winding of the entire motor consists of one or more of these motor modules.

Description

The invention relates to a multi-phase motor.

From the DE 100 49 883 a multi-phase motor is known in which the number of coils of the windings is 1 less than the number of poles. The disadvantage here is that high losses occur at high speeds. The winding factor is also small and there is therefore no optimal utilization of the winding space.

The invention is therefore the object to further develop a multi-phase motor that protects the environment is improved and is simple and inexpensive to manufacture.

According to the invention, the task with the multi-phase motor solved according to the features specified in claim 1.

Essential features of the invention in the multi-phase motor are that the windings without coil overlap accomplished are, with several coils of one phase side by side and not overlapping as a coil group of a phase and one of the number of phases of the winding corresponding number of such coil groups also side by side without overlap form a motor module, the total number of coils being an integer divisible by the number of phases of the windings and 1 greater than that covered by the motor module Number of poles of the secondary part is and the winding of the entire motor from one or more of these motor modules.

The advantage here is that at high Reduced iron losses occur, especially because of the lower feed frequency. This also improves environmental protection, because the energy can be used more effectively. There is also an improved one Winding factor before and the changing room is better used. Also the cogging properties of the engine are beneficial. Furthermore the engine is light, quick and easy, so it can also be manufactured inexpensively

In an advantageous embodiment the motor modules are structurally connected to each other. At a Another advantageous embodiment are the tooth flanks of the teeth of the primary part not designed in parallel for iron motors. Is an advantage thereby that the winding can be used quickly and easily during production are. Moreover is an additional one Degree of freedom for the optimal design of the teeth available.

In an advantageous embodiment have teeth of the primary part not a rectangular but a trapezoidal cross-section. Of The advantage here is that the windings can be used more quickly and easily are and the risk of injury to the Windings can be reduced.

There are further advantages the subclaims.

1

Plate-tooth

2, 2 ', 2' '

winding

3

addendum

The invention will now be explained in more detail with the aid of figures: Representation and designations are those of the DE 100 49 883 based as much as possible and should be consulted for understanding. The differences are clearly shown in the claims and the present description.

The multi-phase motor includes a stator and rotor.

In the 1 is shown a cross section for a first embodiment, the trapezoidal design of the sheet metal teeth 1 of the stator of the electric motor shows. The winding 2 is easy, quick and easy to postpone. The drawing can be implemented on a linear motor as well as on a rotary motor.

In the 2 a cross section is shown for a second embodiment, in which additional tooth heads 3 are provided. The tooth heads are attachable, that is releasably connectable, provided. In the case of a laminated design of the stator, the tooth head is in each case placed over the ends of the stator laminations stacked on top of one another, or glued onto them or otherwise firmly connected to them.

6 shows another embodiment, the stator sheets each having their own tooth tip. This means that the entire head of each entire tooth is made of sheet metal.

In the embodiment according to 1 and in the embodiments 2 With a detachably connectable tooth head, the windings can be pushed on. In contrast, in the exemplary embodiments according to 6 with a firmly connected tooth head, it is not advantageous to slide it on. This also applies to the exemplary embodiment according to 2 , if the tooth head was firmly connected before winding or would be an integral part of the sheet. In the latter two cases, therefore, a winding with a needle is provided during manufacture, which moves around the tooth and thus generates the winding. In the 1 and 2 there is a gap between the adjacent windings. This is advantageously provided for the passage of a needle, for which sufficient space is therefore advantageously provided.

The multi-phase motor according to the invention 1 to 6 shows only small losses due to the smaller food at high speeds frequency on. In addition, a winding factor of 0.959 can advantageously be achieved in the 8-pole machine according to the invention. This is 1.5% more than the 10 pin machine after DE 100 49 883 ,

In the embodiment according to the invention 5 is an 8-pole rotary machine shown with 9 slots. The associated electrical angles can be seen. The phase identification is carried out with U, V, W. In addition, a rotor with permanent magnets N, S is shown as a sketch.

3 shows a linear machine instead of a rotary machine according to the same principle as the rotary motors described above.

4 shows a linear machine instead of a rotary machine according to the same principle as the above-described rotary motors, the embodiment according to 4 is also advantageously rotatable.

Claims (9)

Multi-phase motor with windings without coil overlap, characterized in that several coils of one phase next to one another and not overlapping as a coil group of one phase and a number of such coil groups corresponding to the number of phases of the winding also form a motor module next to one another without overlap, the total number of coils being an integer by the number of phases of the winding is divisible and larger by 1 than the number of poles of the secondary part covered by the motor module and the winding of the entire motor consists of one or more of these motor modules. Multi-phase motor according to at least one of the preceding claims, characterized characterized that the multi-phase motor as a linear motor or rotary Engine running is. Multi-phase motor according to at least one of the preceding claims, characterized characterized in that the motor modules are structurally interconnected are. Multi-phase motor according to at least one of the preceding claims, characterized characterized by the central distance between two coil groups is always exactly 1/3 of the electrical angle that is through those covered by the primary part Pole is formed, and the coil spacings within the coil groups one phase are extended so far that there is the same coil width in the motor module and thus also the same tooth spacing for primary parts with iron result. Multi-phase motor according to at least one of the preceding claims, characterized characterized in that the tooth flanks of the teeth of the primary part iron motors are designed in parallel. Multi-phase motor according to at least one of claims 1 to 4, characterized in that the tooth flanks of the teeth of the primary part are not designed in parallel for motors with iron. Multi-phase motor according to at least one of the preceding claims, characterized characterized that the teeth of the primary part not a regular rectangular one but a trapezoidal one Have cross-section. Multi-phase motor according to at least one of the preceding claims, characterized characterized that for the order of engine modules these are designed so that their primary files cover an even number of poles in the secondary section. Multi-phase motor according to at least one of the preceding claims, characterized characterized that for the construction of rotary motors uses at least one motor module is whose primary parts cover an even number of poles in the secondary section.