Battery cell shifting in rotational motor applications

Patent metadata

Field	Value
Publication number	US-10889474-B2
Application number	US-201715836267-A
Country	US
Kind code	B2
Filing date	Dec 8, 2017
Priority date	Dec 8, 2017
Publication date	Jan 12, 2021
Grant date	Jan 12, 2021

Abstract

Devices, systems, and methods for varying rotational speeds is disclosed. A battery pack has a plurality of batteries and a switch. The battery pack has an overall voltage. The switch varies the overall voltage in discrete steps by combining the plurality of batteries in series, in parallel, or in a combination thereof. A motor drives a shaft at a rotational speed. The motor is powered by the battery pack. The rotational speed varies proportionally with the overall voltage.

First claim

The invention claimed is:

1. A device comprising:
a battery pack comprising a plurality of batteries and a switch, the battery pack having an overall voltage;
the switch varies the overall voltage in discrete steps by changing the arrangement of the plurality of batteries, whether in series, in parallel, or in a combination thereof;
a motor comprising a shaft, wherein the battery pack powers the motor which drives the shaft at a rotational speed, and wherein the rotational speed varies proportionally with the overall voltage.

2. The device of claim 1 , further comprising at least one planetary gearset, wherein the shaft drives rotation of the at least one planetary gearset.

3. The device of claim 2 , further comprising a drum, wherein the at least one planetary gearsets drive rotation of the drum.

4. The device of claim 3 , wherein the drum is a spool for a winching line.

5. The device of claim 4 , wherein the drum rotates at a first rotational speed while the winching line is under a load due to a first overall voltage, and the drum rotates at a second rotational speed while the winching line is under substantially no load due to a second overall voltage, wherein the second rotational speed is greater than the first rotational speed.

6. The device of claim 1 , further comprising a controller which controls the switch.

7. The device of claim 6 , wherein the battery pack further comprises a voltmeter, an amp meter, or a combination thereof.

8. The device of claim 7 , wherein the voltmeter, the amp meter, or a combination thereof, send signals to the controller regarding the voltage and current of the battery pack.

9. The device of claim 1 , wherein the switch comprises a bipolar transistor, a power diode, a MOSFET, an IGBT, an SCR, a TRIAC, a GTO, a relay, or a combination thereof.

10. The device of claim 1 , wherein the plurality of batteries comprise rechargeable batteries.

11. A method for varying rotational speed comprising:
varying an overall voltage of a battery pack in discrete steps by changing the arrangement of a plurality of batteries, whether in series, in parallel, or in a combination thereof using a switch, the battery pack comprising the plurality of batteries and the switch; and
powering a motor with the battery pack, the motor comprising a shaft, the motor driving the shaft at a rotational speed, wherein the rotational speed varies proportionally with the overall voltage.

12. The device of claim 11 , further comprising driving the rotation of at least one planetary gearset with the shaft.

13. The method of claim 12 , further comprising driving the rotation of a drum with the at least one planetary gearset.

14. The method of claim 13 , further comprising spooling a winching line on the drum.

15. The method of claim 14 , wherein driving the rotation of the drum at a first overall voltage produces a first rotational speed of the drum while the winching line is under a load and driving the rotation of the drum at a second overall voltage produces a second rotational speed of the drum while the winching line is under substantially no load, wherein the second rotational speed is greater than the first rotational speed.

16. The method of claim 11 , further comprising controlling the switch with a controller.

17. The method of claim 16 , wherein the battery pack further comprises a voltmeter, an amp meter, or a combination thereof.

18. The method of claim 17 , further comprising sending signals from the voltmeter, the amp meter, or the combination thereof, to the controller regarding the voltage and current of the battery pack.

19. The method of claim 11 , wherein the switch comprises a bipolar transistor, a power diode, a MOSFET, an IGBT, an SCR, a TRIAC, a GTO, a relay, or a combination thereof.

20. The method of claim 11 , wherein the plurality of batteries comprise rechargeable batteries.

Assignees

• Hall David R
• Madsen Daniel
• Miles Jerome
• Jones Christopher
• Davis Nathan
• Hall Labs Llc

Inventors

• Hall David R
• Madsen Daniel
• Miles Jerome
• Jones Christopher
• Davis Nathan

Classifications

• B66D1/22

  Planetary or differential gearings (for actuating grab buckets B66D1/70 ){, i.e. with planet gears having movable axes of rotation} · CPC title

• B66D1/12 Primary

  incorporating electric motors · CPC title

• B66D2700/0141

  Electrically actuated · CPC title

• B66D1/46

  electric · CPC title