High-power battery-powered portable power source

Patent metadata

Field	Value
Publication number	US-11996526-B2
Application number	US-202117410379-A
Country	US
Kind code	B2
Filing date	Aug 24, 2021
Priority date	Mar 26, 2018
Publication date	May 28, 2024
Grant date	May 28, 2024

Abstract

A portable power source for power tools. The portable power source includes a housing defining a battery support and an power outlet, a circuit supported by the housing and including an input terminal on the battery support, an output terminal on the power outlet, and an inverter electrically connected between the input terminal and the output terminal, a battery power source including a battery housing supported on the battery support, at least one battery cell, and a battery terminal connected to the battery cell and electrically connectable to the input terminal, power being transferrable from the battery cell to the circuit to be output through the power outlet, and a frame connected to the housing and extending beyond a periphery of the housing and of the supported battery power source, the frame inhibiting contact with the housing and the battery power source.

First claim

What is claimed is:

1. A portable power source comprising:
a housing defining a battery support and a power outlet,
a circuit supported by the housing and including
an input terminal on the battery support,
an output terminal on the power outlet, and
an inverter electrically connected between the input terminal and the output terminal,

a battery power source including
a battery housing supported on the battery support,
a battery cell, and
a battery terminal connected to the battery cell and electrically connectable to the input terminal, wherein power is transferrable from the battery cell to the circuit to be output through the power outlet, and

a frame connected to the housing and extending beyond a periphery of the housing and the supported battery power source.

2. The portable power source of claim 1 , wherein the portable power source defines a horizontal centerline, and wherein a center of gravity of the portable power source is below the horizontal centerline.

3. The portable power source of claim 2 , wherein the center of gravity is below the horizontal centerline by between 2.5% and 5% of a height of the portable power source.

4. The portable power source of claim 2 , wherein the center of gravity is below the horizontal centerline by between 15 mm and 25 mm.

5. The portable power source of claim 1 , wherein the portable power source defines a vertical centerline between a first side and an opposite side of the housing, and wherein the center of gravity of the portable power source is toward the first side of the housing from the vertical centerline.

6. The portable power source of claim 5 , wherein the center of gravity is spaced from the vertical centerline by between 1.5% and 3% of a depth of the portable power source.

7. The portable power source of claim 5 , wherein the center of gravity is spaced from the vertical centerline by between 5 mm and 8 mm.

8. The portable power source of claim 1 , wherein the frame further includes
a first frame portion on a first side of the housing,
a second frame portion on an opposite side of the housing,
a pair of bars connected between the first frame portion and the second frame portion, and
a handle connected between the bars, the handle extending perpendicular to the bars and substantially parallel to the first frame portion and the second frame portion.

9. The portable power source of claim 1 , wherein the frame inhibits contact with the housing and the battery power source.

10. The portable power source of claim 1 , wherein the portable power source has a total weight between 48 pounds and 55 pounds.

11. The portable power source of claim 1 , wherein the portable power source is operable to output a peak power output of between 3000 W and 4000 W for at least 2 seconds and a sustained maximum output power of between about 1500 W and about 2000 W for at least about 6 minutes.

12. The portable power source of claim 1 , further comprising a fuel gauge configured to display a state-of-charge of the battery power source, the fuel gauge and the power outlet being positioned on a side of the housing.

13. The portable power source of claim 1 , further comprising a battery lock point provided on the battery support, wherein the battery lock point is configured to be engageable with a pad lock to prevent removal of the battery pack.

14. The portable power source of claim 1 , wherein the portable power source defines a horizontal centerline, wherein the portable power source defines a vertical centerline between a first side of the housing and an opposite side of the housing, wherein a center of gravity of the portable power source is below the horizontal centerline by between 15 mm and 25 mm, and wherein the center of gravity is spaced from the vertical centerline by between 5 mm and 8 mm.

15. A portable power source comprising:
a housing having a first surface and a second surface opposite the first surface, the housing including
a first battery support on the first surface,
a second battery support on the second surface, and
a power outlet;

a circuit supported by the housing and including
a first input terminal on the first battery support,
a second input terminal on the second battery support,
an output terminal on the power outlet, and
an inverter electrically connected between the input terminal and the output terminal,

a battery power source supportable on the first battery support and a second battery power source supportable on the second battery support, each battery power source including
a battery housing supported on the associated battery support,
a battery cell, and
a battery terminal connected to the battery cell and electrically connectable to the associated input terminal, wherein power is transferrable from the battery cell of each battery power source to the circuit to be output through the power outlet, and

a frame connected to the housing and extending beyond a periphery of the housing and the supported first battery power source and the second battery power source.

16. The portable power source of claim 15 , wherein the frame further includes
a first frame portion on a first side of the housing,
a second frame portion on an opposite side of the housing,
a pair of bars connected between the first frame portion and the second frame portion, and
a handle connected between the bars, the handle extending perpendicular to the bars and substantially parallel to the first frame portion and the second frame portion.

17. The portable power source of claim 15 , wherein the portable power source is operable to output a peak power output of between 3000 W and 4000 W for at least 2 seconds and a sustained maximum output power of between about 1500 W and about 2000 W for at least about 6 minutes.

18. A portable power source comprising:
a housing defining a battery support and a power outlet,
a circuit supported by the housing and including
an input terminal on the battery support,
an output terminal on the power outlet, and
an inverter electrically connected between the input terminal and the output terminal,

a battery power source having a nominal voltage between 60 Volts (V) and 100 V and including
a battery housing supported on the battery support,
a battery cell, and
a battery terminal connected to the battery cell and electrically connectable to the input terminal, wherein power is transferrable from the battery cell to the circuit to be output through the power outlet, and

a frame connected to the housing and extending beyond a periphery of the housing and the supported battery power source.

19. The portable power source of claim 18 , wherein the frame further includes
a first frame portion on a first side of the housing,
a second frame portion on an opposite side of the housing,
a pair of bars connected between the first frame portion and the second frame portion, and
a handle connected between the bars, the handle extending perpendicular to the bars and substantially parallel to the first frame portion and the second frame portion.

20. The portable power source of claim 18 , wherein the portable power source defines a horizontal centerline, wherein the portable power source defines a vertical centerline between a first side of the housing and an opposite side of the housing, wherein a center of gravity of the portable power source is below the horizontal centerline by between 15 mm and 25 mm, and wherein the center of gravity is spaced from the vertical centerline by between 5 mm and 8

Assignees

• Milwaukee Electric Tool Corp

Inventors

• Hansen Dalton F
• Wenzel Duane W
• Doberstein Emily C
• Kachar Amanda M
• Nowalis Dean W
• Matthews Michael A

Classifications

• H02J7/751

  concerning the insertion or the connection of the batteries · CPC title

• H02J7/731

  specially adapted for holding portable devices containing batteries (H02J7/751 takes precedence) · CPC title

• H02J7/585

  Sequential battery discharge in systems with a plurality of batteries · CPC title

• H02J7/70

  characterised by the mechanical construction · CPC title

• H01M50/296

  characterised by terminals of battery packs (terminals of batteries H01M50/543) · CPC title