Design

Table 1. Commutator design area – Overview


1 Selection of the Rotor subset: Commutator panel (Click on the icon Commutator)

Selection of the Commutator panel (Click on the Commutator icon)

Several sections allow defining all characteristics that deal with the commutator: Design and Brush.
2 Commutator design tab to establish global parameters, both geometrical and electrical
2.1 Commutator-Design input data to be defined (1)
3 Brush design tab to introduce the brush related parameters
(1) Here is the list of the commutator design parameters:
  • Length : Commutator axial length.
  • Support thickness: Thickness of the not conducting material that is supporting the commutator segments.

    Since it has cylindrical form, it corresponds to its radius.

  • Shift: Commutator shift
  • Segmentation thickness: Thickness of the conductive commutator segments.
  • Insulation pitch ratio: Angular ratio of the insulation between commutator segments
  • Contact resistance: Contact resistance between the brushes and the commutator segments
Note: By definition, the commutator is always placed in the connection side (C.S.) which is identified by a yellow lighting.
Note: In the commutator datasheet, the parameters written in blue correspond to user input parameters and the parameters written in black correspond to data resulting from computations.
Figure 1. Dimensions are illustrated with arrows and with a dedicated tooltip.


Figure 2. The commutator is always placed in the connection side (C.S.) which is identified by a yellow lighting.


Table 2. Commutator geometrical parameters


1 Length
2 Support thickness
3 Shift
4 Segmentation thickness