Battery pack for mobile devices

• US 10,559,788 B2
• Filed: 12/28/2018
• Issued: 02/11/2020
• Est. Priority Date: 01/18/2008
• Status: Active Grant

• Current Assignee: Mophie Incorporated (Evercel, Inc.)
• Original Assignee: Mophie Incorporated (Evercel, Inc.)
• Inventors: Huang, Daniel, Brand, Matthew
• Primary Examiner(s): Tso, Edward
• Assistant Examiner(s): Piggush, Aaron
• Application Number:
  US16/235,185
• Publication Number:
  US 20190245166A1
• Time in Patent Office: 410 Days
• Field of Search: 320103, 320108, 320113, 320114, 320115
• CPC Class Codes: G01R 31/382 Arrangements for monitoring battery or accumulator variables, e.g. SoC
• CPC Class Codes: G06F 1/1626 with a single-body enclosure integrating a flat display, e.g. Personal Digital Assistants [PDAs]
• CPC Class Codes: G06F 1/1632 External expansion units, e.g. docking stations
• CPC Class Codes: H01M 10/46 Accumulators structurally combined with charging apparatus circuits for charging H02J7/00
• CPC Class Codes: H01M 10/488 Cells or batteries combined with indicating means for external visualization of the condition, e.g. by change of colour or of light density
• CPC Class Codes: H01M 2220/30 Batteries in portable systems, e.g. mobile phone, laptop
• CPC Class Codes: H01M 50/202 Casings or frames around the primary casing of a single cell or a single battery
• CPC Class Codes: H01M 50/247 specially adapted for portable devices, e.g. mobile phones, computers, hand tools or pacemakers
• CPC Class Codes: H02J 7/00 Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
• CPC Class Codes: H02J 7/0042 characterised by the mechanical construction
• CPC Class Codes: H02J 7/0044 specially adapted for holding portable devices containing batteries H02J7/0045 takes precedence
• CPC Class Codes: H02J 7/0045 concerning the insertion or the connection of the batteries
• CPC Class Codes: H02J 7/0048 Detection of remaining charge capacity or state of charge [SOC]
• CPC Class Codes: H04B 1/3883 Arrangements for mounting batteries or battery chargers
• CPC Class Codes: H04B 1/3888 Arrangements for carrying or protecting transceivers
• CPC Class Codes: H04M 1/0254 comprising one or a plurality of mechanically detachable modules
• CPC Class Codes: H04M 1/0262 for a battery compartment
• CPC Class Codes: H04M 1/0283 for providing a decorative aspect, e.g. customization of casings, exchangeable faceplate
• CPC Class Codes: Y02E 60/10 Energy storage using batteries
• CPC Class Codes: Y10T 29/49108 Electric battery cell making

Abstract

A battery pack is provided for a mobile communication device, comprising a casing defining a cavity that conforms, at least partially, to the outer shape of the mobile communication device and one or more rechargeable power cells housed within the thickness of the casing. An internal interface engages a corresponding interface on the mobile communication device to provide power from the one or more rechargeable cells to the mobile communication device. An external interface is electrically coupled to the internal interface in order to transmit signals from the mobile communication device to an external device and may further serve to recharge the one or more rechargeable power cells. The battery pack may also serve as an extendible platform by providing additional integrated communication interfaces and/or processors that can be utilized by the mobile communication device to extend its communication and/or processing capabilities.

Claims

1. A protective battery case for use with a mobile electronic device, the protective battery case comprising:

a protective casing comprising;

a back wall configured to be positioned adjacent to at least a portion of a back side of a mobile electronic device, wherein the mobile device has a primary battery for powering the mobile electronic device;

an upper wall configured to be positioned adjacent to at least a portion of a top of the mobile electronic device;

a right side wall configured to be positioned adjacent to at least a portion of a right side of the mobile electronic device;

a left side wall configured to be positioned adjacent to at least a portion of a left side of the mobile electronic device;

a front opening configured such that a display of the mobile electronic device is visible through the front opening such that the mobile electronic device is usable while inside the casing;

a supplemental battery housed within a thickness of the back wall such that the supplemental battery is configured to be positioned behind the back side of the mobile electronic device;

a first interface coupled to the supplemental battery and configured to recharge the primary battery of the mobile electronic device with power from the supplemental battery;

a second interface coupled to the supplemental battery and configured to recharge the supplemental battery, wherein the second interface comprises an external port configured to receive a connector for wired recharging of the supplemental battery; and

a third interface coupled to the supplemental battery and configured to recharge the supplemental battery, wherein the third interface comprises a wireless charging device for recharging the supplemental battery wirelessly.

2. The case of claim 1, wherein the case is configured to wirelessly transmit signals to the mobile electronic device.

3. The case of claim 2, wherein the wirelessly transmitted signals comprise data or an alarm.

4. The case of claim 1, wherein the first interface comprises a connector configured to engage a corresponding port on the mobile electronic device.

5. The case of claim 1, wherein the casing comprises a bottom wall configured to be positioned adjacent to at least a portion of a bottom of the mobile electronic device, and wherein the first interface comprises a connector that extends upward from the bottom wall.

6. The case of claim 1, wherein the wireless charging device includes an inductive electrical recharging system.

7. The case of claim 1, further comprising a user input element configured to enable a user to start and stop recharging of the primary battery with the power from the supplemental battery.

8. The case of claim 1, wherein a thickness of the protective battery case is less than twice the thickness of the mobile electronic device.

9. The case of claim 1, further comprising a charge level indicator configured to indicate the charge level of the supplemental battery.

10. The case of claim 1, wherein a portion of the casing is flexible to facilitate insertion of the mobile electronic device into the casing or to facilitate removal of the mobile electronic device from the casing.

11. The case of claim 1, wherein the casing comprises a lower case portion and an upper case portion configured to couple to the lower case portion, wherein the upper case portion is removable from the lower case portion to facilitate insertion of the mobile electronic device into the casing or to facilitate removal of the mobile electronic device from the casing.

12. The case of claim 1, wherein the battery case is configured for use with a mobile phone, and wherein an outer surface of the casing generally conforms to an external shape of the mobile phone.

13. A method of making a protective battery case for use with a mobile electronic device, the method comprising:

providing a protective casing that comprises;

a back wall configured to be positioned adjacent to at least a portion of a back side of a mobile electronic device;

an upper wall configured to be positioned adjacent to at least a portion of a top of the mobile electronic device;

a right side wall configured to be positioned adjacent to at least a portion of a right side of the mobile electronic device;

a left side wall configured to be positioned adjacent to at least a portion of a left side of the mobile electronic device;

a front opening configured such that a display of the mobile electronic device is visible through the front opening such that the mobile electronic device is usable while inside the casing;

disposing a battery within a thickness of the back wall such that the battery is configured to be positioned behind the back side of the mobile electronic device;

providing a first interface coupled to the battery and configured to provide power to the mobile electronic device from the battery;

providing a second interface coupled to the battery and configured to recharge the battery, wherein the second interface comprises an external port configured to receive a connector for wired recharging of the battery; and

providing a third interface coupled to the battery and configured to recharge the battery, wherein the third interface comprises a wireless charging device for recharging the battery wirelessly.

14. The method of claim 13, wherein the case is configured to wirelessly transmit signals to the mobile electronic device.

15. The method of claim 14, wherein the wirelessly transmitted signals comprise data or an alarm.

16. The method of claim 13, wherein the first interface comprises a connector configured to engage a corresponding port on the mobile electronic device.

17. The method of claim 13, wherein the casing comprises a bottom wall configured to be positioned adjacent to at least a portion of a bottom of the mobile electronic device, and wherein the first interface comprises a connector that extends upward from the bottom wall.

18. The method of claim 13, wherein the wireless charging device includes an inductive electrical recharging system.

19. The method of claim 13, further comprising providing a user input element configured to enable a user to start and stop power delivery from the battery to the mobile electronic device.

20. The method of claim 13, wherein a thickness of the protective battery case is less than twice the thickness of the mobile electronic device.

21. The method of claim 13, further comprising providing a charge level indicator configured to indicate the charge level of the battery.

22. The method of claim 13, wherein a portion of the casing is flexible to facilitate insertion of the mobile electronic device into the casing or to facilitate removal of the mobile electronic device from the casing.

23. The method of claim 13, wherein the casing comprises a lower case portion and an upper case portion configured to couple to the lower case portion, wherein the upper case portion is removable from the lower case portion to facilitate insertion of the mobile electronic device into the casing or to facilitate removal of the mobile electronic device from the casing.

24. The method of claim 13, wherein the battery case is configured for use with a mobile phone, wherein an external shape of the casing generally conforms to an external shape of the mobile phone.