Portable light chargeable from different sources

Patent metadata

Field	Value
Publication number	US-9651208-B2
Application number	US-201314103438-A
Country	US
Kind code	B2
Filing date	Dec 11, 2013
Priority date	Feb 22, 2013
Publication date	May 16, 2017
Grant date	May 16, 2017

Abstract

A portable light or device may comprise: a housing for receiving a battery; a light source or other operating element in the housing; an electrical switch actuatable from outside the housing; a control circuit in the housing connecting the operating element in circuit with a battery for selectively energizing the operating element responsive to the electrical switch; a first electrical charging port on the housing coupled to the battery by the control circuit for charging the battery; and a second electrical charging port on the housing coupled to the battery by the control circuit for charging the battery. The second electrical charging port may include a USB connection for receiving battery charging current.

First claim

What is claimed is:

1. A portable light comprising:
a light housing having a barrel, a forward housing and a cavity for receiving a battery;
a light source in a head housing of the forward housing of the light housing for providing illumination;
an electrical switch actuatable from outside said light housing;
a control circuit in said light housing configured to connect said light source in circuit with the battery for selectively energizing said light source responsive to said electrical switch;
a first electrical charging port on said forward housing coupled to the battery by said control circuit for charging the battery, said first electrical charging port including a guide member for seating said light housing in a charging device external to said portable light and configured to receive said portable light, said first electrical charging port further including one or more electrical contacts associated with said guide member configured to make electrical connection to the external charging device to receive battery charging current therefrom when said portable light is received therein;
a second electrical charging port proximate a forward end of the barrel of said light housing coupled to the battery by said control circuit for charging the battery, said second electrical charging port including a USB port including a USB connector mounted to a circuit board interior to said light housing for receiving battery charging current from a second source of electrical power that is external to said portable light,
wherein said control circuit includes at least one DC converter for coupling at least one of said first electrical charging port and said second electrical charging port to the battery for providing battery charging current thereto; and
a movable cover movable in a recess on a forward part of said light housing to cover said second electrical charging port and to uncover said second electrical charging port.

2. The portable light of claim 1 wherein said control circuit includes a DC converter coupling said second electrical charging port to the battery for charging the battery.

3. The portable light of claim 2 wherein said DC converter includes a battery charging circuit for controlling the charging of the battery.

4. The portable light of claim 2 wherein said control circuit further includes a second DC converter coupling one of said first and second electrical charging ports to the battery for charging the battery.

5. The portable light of claim 1 wherein said control circuit includes at least one light emitting indicator, said light housing having an opening through which light can pass adjacent said at least one light emitting indicator.

6. The portable light of claim 5 further comprising a cover member having a transparent or translucent insert therein providing the opening of said light housing.

7. The portable light of claim 1 wherein said first electrical charging port and said second electrical charging port receive battery charging current at different supply voltages, wherein said DC converter comprises at least one voltage converter for coupling at least one of said first electrical charging port and said second electrical charging port to the battery.

8. The portable light of claim 1 wherein said movable cover comprises:
a slidable cover slidable relative to said light housing for covering and uncovering the USB connector of said second electrical charging port; or
a slidable cover slidable relative to said light housing between a light head thereof and an end of a reduced diameter portion thereof for covering and uncovering the USB connector of said second electrical charging port; or
a slidable cover slidable relative to said light housing for covering and uncovering the USB connector of said second electrical charging port including one or more seals therefor; or
a slidable cover slidable relative to said light housing between a light head thereof and an end of a reduced diameter portion thereof for covering and uncovering the USB connector of said second electrical charging port including one or more seals therefor.

9. The portable light of claim 1 wherein the USB connection includes a USB connector, a mini-USB connector, a micro-USB port, or a standardized power connector.

10. The portable light of claim 1 wherein:
said control circuit includes circuitry for controlling the charging of the battery; or
an external charging device includes circuitry for controlling the charging of the battery; or
an external charging device includes circuitry for controlling the charging of the battery from said first electrical charging port and said control circuit includes circuitry for controlling the charging of the battery from said second electrical charging port.

11. The portable light of claim 1 wherein said USB connector receives electrical power at a nominal plus five volts.

12. The portable light of claim 1 further comprising a battery in the cavity of said light housing.

13. A portable device comprising:
a device housing having a barrel, a forward housing and a cavity for receiving a battery;
an operating element in an element housing connected to the forward housing of the device housing;
an electrical switch actuatable from outside said device housing;
a control circuit in said device housing configured to connect said operating element in circuit with the battery for selectively energizing said operating element responsive to said electrical switch;
a first electrical charging port on said forward housing coupled to the battery by said control circuit for charging the battery, said first electrical charging port including a guide member for seating said device housing in a charging device external to said portable device and configured to receive said portable device, said first electrical charging port further including one or more electrical contacts associated with said guide member configured to make electrical connection to the external charging device to receive battery charging current therefrom when said portable device is received therein;
a second electrical charging port proximate a forward end of the barrel of said device housing coupled to the battery by said control circuit for charging the battery, said second electrical charging port including a USB port including a USB connector mounted to a circuit board interior to said device housing for receiving battery charging current from a second source of electrical power that is external to said portable device,
wherein said control circuit includes at least one DC converter for coupling at least one of said first electrical charging port and said second electrical charging port to the battery for providing battery charging current thereto; and
a movable cover movable in a recess on a forward part of said device housing for covering and uncovering the USB connector of said second electrical charging port.

14. The portable device of claim 13 wherein said control circuit includes a DC converter coupling one of said first and second electrical charging ports to the battery for charging the battery.

15. The portable device of claim 14 wherein said DC converter includes a battery charging circuit for controlling the charging of the battery.

16. The portable device of claim 14 wherein said control circuit further includes a second DC converter coupling said first electrical charging port to the battery for charging the battery.

17. The portable device of claim 13 wherein said control circuit includes at least one light emitting indicator, said device housing havin

Assignees

• Streamlight Inc

Inventors

• Sharrah Raymond L
• Boris Thomas D

Classifications

• H02J7/70

  characterised by the mechanical construction · CPC title

• H02J2207/40

  adapted for charging from various sources, e.g. AC, DC or multivoltage · CPC title

• H02J7/00

  Circuit arrangements for charging or discharging batteries or for supplying loads from batteries · CPC title

• F21L4/08 Primary

  characterised by means for in situ recharging of the batteries or cells · CPC title

• H02J7/0055

  Electricity · mapped topic