Starting system for a single-phase induction motor
AssigneeWhirlpool Corporation
InventorMarcos Schwarz
Life of this patent
Estimating the term…
Abstract
A starting system for a single-phase induction motor, comprising: a stator having a running coil (11) and a starting coil (12); a power source (F) which supplies current to said running coil (11) and said starting coil (12); a running switch (S1) and a starting switch (S2), respectively connecting the running coil (11) and the starting coil (12) to the power source (F) when in a closed condition; and a control unit (30) which is programmed to operate the running switch (S1) so as to cause a delay in the supply of the current supplied to the running coil (11) in relation to the supplied of the to the starting coil (12), during the motor start for a determined time interval which is previously defined and considered from the zero-crossing moment of the current supplied to the stator.
Claims7
A starting system for a single-phase induction motor, comprising:
- a stator having a running coil (11) and a starting coil (12);
- a power source (F) which supplies current to said running coil (11) and said starting coil (12);
- a running switch (S1) and a starting switch (S2), respectively connecting the running coil (11) and the starting coil (12) to the power source (F) when in a closed condition, said starting switch (S2) being conducted to an open condition upon completion of the motor start;
- and a control unit (30) supplied by the power source (F) and operatively connected to the running switch (S1) and the starting switch (S2) in order to instruct the open and closed conditions thereof, characterized in that said control unit (30) is programmed to operate the running switch (S1) in order to cause a delay in the supply of the current supplied to the running coil (11) in relation to the supply of the current supplied to the starting coil (12) during the motor start for a determined time interval which is previously defined and considered from the zero-crossing moment of the current supplied to the stator.
Dependencies are inferred from the claim text.