Hybrid electric device
View Patent ↗A device includes a housing configured with a working element. The device also includes a motor configured for urging motion of the working element. The device also includes a power control module which may be electrically connected with at least one of the motor, a first power source configuration and a second power source configuration. Electric current is provided to the motor by the first and/or the second power source configurations. The first power source configuration may be electrically connected to a battery assembly having a DC power output. The second power source configuration may be electrically connected to a power inverter which may receive AC power and output DC power to the second power source configuration. The motor may be one of a permanent magnet DC (PMDC) motor, a universal motor and an induction motor, the motor receiving power via the power control module from at least one of the first power source configuration and the second power source configuration.
1. A device, comprising:
a housing configured with a working element;
a motor configured for urging motion of the working element, the motor having a first coil and a second coil, both of the first coil and the second coil being wrapped on an armature of the motor;
a first brush configured for being in electrical contact with a first commutator, the first commutator configured for being electrically connected to the first coil;
a second brush configured for being in electrical contact with a second commutator, the second commutator configured for being electrically connected to the second coil;
a hybrid controller configured for receiving electrical power from at least one of a first voltage configuration and a second voltage configuration, and delivering said electrical power to at least one of the first brush and the second brush,
wherein the hybrid controller includes a first circuit setting and a second circuit setting, the hybrid controller configured for electrically connecting the first brush and the second brush in a parallel configuration when the hybrid controller is established at the first circuit setting, the hybrid controller further configured for electrically connecting the first brush and the second brush in a series configuration when the hybrid controller is established at the second circuit setting;
wherein the hybrid controller includes a boost setting in which electrical power simultaneously received from both of the first voltage configuration and second voltage configuration is delivered to the first brush and second brush at the second circuit setting.
2. The device as claimed in claim 1 , wherein the first and the second commutators are located on opposite ends of the armature.
3. The device as claimed in claim 1 , wherein the hybrid controller is configured in the first circuit setting when the hybrid controller is in electrical connection with the first voltage configuration, and the hybrid controller is configured in the second circuit setting when the hybrid controller is in electrical connection with the second voltage configuration.
4. The device as claimed in claim 1 , wherein the first voltage configuration is electrically connected to a battery assembly having a DC power output; and the second voltage configuration is electrically connected to a power inverter, the power inverter configured for receiving AC power and outputting DC power to the second voltage configuration.
5. The device as claimed in claim 4 , wherein the DC power output of the battery assembly is 60VDC.
6. The device as claimed in claim 4 , wherein the AC power input to the power inverter is 120VAC, and the DC power output of the power inverter is 120VDC.
7. The device as claimed in claim 4 , wherein the DC power output of the battery assembly is a value which is equal to half of the DC power output of the power inverter.
8. The device as claimed in claim 1 , wherein the working element is a blade for cutting vegetation, said blade having a maximum rotational speed of a pre-determined level.
9. The device as claimed in claim 5 , further comprising a feedback sensor to maintain the rotational speed of the blade.
10. The device as claimed in claim 5 , wherein the rotational speed of the blade is controlled by adjusting voltage of the electric power provided to the motor.