Classifications

• • H—ELECTRICITY
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
  • H02G11/00—Arrangements of electric cables or lines between relatively-movable parts
  • H02G11/02—Arrangements of electric cables or lines between relatively-movable parts using take-up reel or drum
• • H—ELECTRICITY
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
  • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
  • H02J7/0042—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
• • H—ELECTRICITY
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
  • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
  • H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
  • H02J7/342—The other DC source being a battery actively interacting with the first one, i.e. battery to battery charging
• • H—ELECTRICITY
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
  • H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
  • H02J2207/40—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries adapted for charging from various sources, e.g. AC, DC or multivoltage

Definitions

• the present invention relates generally to providing an adjustable length charging connection for one or more cell phones or similar electronic devices, and more specifically to ensuring a continuous electrical connection and charge during adjustment of the cord reel, while permitting all of the electrical connectors to be retracted within a shell or housing while not in use.
• Cords used for charging batteries in cell phones, laptops , and the like may be used with the present invention such that, when retracted, can be safely stored and protected from
• Today's power adapters are typically AC-to-DC power converters which are configured to convert an AC voltage to a DC voltage delivered to the mobile device.
• users can power most mobile devices by simply plugging the adapter into a standard AC wall outlet commonly found in most homes and offices.
• Such devices are often bulky and clumsy, with the AC-to-DC adapters having a "brick" configuration, with each cord (i.e., the cord connecting the converter to the device, and the cord connecting the converter to an outlet both dangling loose and creating safety and damage risks for the user and the equipment.
• the cord reel assembly described here relates to needs for features improving the robustness of the electrical connection for supplying converted power between a source and the device, even when the length of the connecting cord is being adjusted.
• the invention further relates to the ability to connect to and supply power to multiple devices, including multiple devices at the same time.
• the invention also relates to safely store such multiple cords or connectors when not in use.
• the present invention relates generally to addressing needs related to charging devices for mobile phone or similar electronic device include a retractable cord reel. More specifically, such needs include a retractable cord reel which may have the ability to connect with multiple form factors, including multiple devices at the same time, while retracting inside of a streamlined profile to avoid entanglement when not in use. Further, the need for a converted power supply connector the need to ensure the continuous supply of power to the device(s) being charged, even when the length of the cord is being adjusted, e.g., due to the movement of the user and the mobile device.
• a "retractable cord reel” refers to a cable storage unit and cable management systems having a spooling cord such as the type found in U.S. Pat. No. 5,094,396 to Burke, the subject matter of which is hereby incorporated by reference, and U.S. Patent Application No.
• a “housing” means a rigid casing that reels, encloses and protects a spool, and further protects a cord when retracted.
• the housing may, but need not further include a recess or cavity for receiving and protecting an electrical connector, such as an electrical plug or connector when retracted.
• a “spool” means a cylinder around which an electrical cord can be wound; a reel.
• the spool further comprises two faces or borders connected to the cylinder and having a larger diameter than the cylinder therebetween so as to enable the cord to be wound around the cylinder.
• a "spring contact” means a flexible contact which maintains a substantially constant electrical communication with the conductive face of the spool.
• the spring contact is substantially fixed in position but flexible so as to accommodate continuing electrical communication during the rotational movement of the spool.
• the present invention relates to one or more of the following features, elements or combinations thereof.
• One disclosed embodiment is directed to a device including a retractable cord reel for connecting a power source (e.g., a wall outlet) to an electronic device (e.g., a mobile phone, laptop or the like), including a mechanism for converting the power source to an appropriate form for use in the electronic device.
• the charging station includes a housing for retaining a cord reel which can be adjusted in length according to the needs of the user. Storing the cord on a reel helps protect safety hazards to the equipment or the user when not in use.
• the present invention particularly provides a mechanism for maintaining a substantially consistent electrical connection between the power source and the device, even when the cord reel is being adjusted in length, the mechanism including one or more metallic springs for contacting a conductive face of the spool on the cord reel during rotation of the spool.
• Another embodiment of the present invention further includes safety features for enabling the storage of the entirety of one or more electrical connections in the device, including the power outlet plug (which can be folded into a recess in the housing of the device) and the retractable cord plug (which can be retained in another recess in the housing when fully retracted).
• the housing can include a second connector (e.g., a female connector) to enable connection to a second form factor of connection and/or a second electronic device.
• one object of the disclosed invention is to provide a continuous converted electrical supply charge to an electronic device even during the adjustment in length of any connecting cables.
• a further object of the present invention is to provide a housing for storing the entirety of electrical connectors coupling a power supply to a mobile device or the like when not in use.
• Another object of the invention is to provide multiple electrical connectors coupling a power supply to more than one form factor of mobile device connection.
• Still another object of the present invention is to provide multiple electrical connectors coupling a power supply to more than one mobile device or the like at the same time.
• FIGS. l a and l b are perspective and exposed perspective figures of a charging device in accord with a preferred embodiment of the present invention.
• Figure 2 is a perspective figure of spring fingers engaging a face of the cord reel in accord with one preferred embodiment of the present invention
• Figure 3 is side view the multiple form factor electrical connectors and the housing recess for retaining such connectors in accord with a preferred embodiment of the present invention.
• Figure 4 is a side view of the foldable plug detail for connecting to a power source in accord with a preferred embodiment of the present invention.
• Figure 5a-c is a front and side views of an alternative, modular device in accord with another preferred embodiment of the present invention.
• Figure 6 is an exploded view of an alternative, modular device in accord with another preferred embodiment of the present invention.
• FIG. 7a-c shows a USB power plug feature in accord with another preferred embodiment of the present invention.
• Figure 8 shows a front exposed view of an alternative, modular device in accord with another preferred embodiment of the present invention.
• FIGS 9a-b show left and right perspective view an alternative, modular device in accord with another preferred embodiment of the present invention.
• Figures l Oa-e show front, left, right, top and bottom view of a main housing module in accord with yet another preferred embodiment of the present invention.
• Figures 1 l a-e show front, left, right, top and bottom view of a main housing module in combination with a wall power plug module in accord with yet another preferred embodiment of the present invention.
• Figures 1 2a-e show front, left, right, top and bottom view of a main housing module in combination with a USB power plug module in accord with yet another preferred embodiment of the present invention.
• Figure 13 shows an exploded view of a main housing module in accord with yet another preferred embodiment of the present invention.
• the device 10 includes a housing 12 with a first end 14 that has a power source connector 16, such as a wall plug connector extending therefrom to connect to a wall outlet (not shown) or the like.
• the second end 18 has an extendable cord 20 extending therefrom which terminates in a device connector 22 of a desired form factor type to mate with a mobile phone, laptop or the like (not shown).
• the cord can be retracted around a spool 24 through a "pull to stow" mechanism such as those known to persons of ordinary skill in the art.
• the spool 24 includes a cylinder 26 for winding the cord 20 around, as well as two faces 28 on each end of the cylinder 26.
• the spool 24 is spring biased for retraction and held at the desired point of unwinding by a non-conductive ratchet 27 which contacts a corresponding on the circumference of at least one face 28.
• At least one of the faces 28 includes a conductive surface (e.g., metallic) which contacts a number of spring contacts 30 which electrically contact the spool 24 to a printed circuit board 32 which converts the power received from the power source connector 16 to the desired current form for transmission through the spool 24 to the cord 20.
• a conductive surface e.g., metallic
• the cord 20 and the device connector 22 may be fully retracted such that neither extends beyond the periphery of the housing 12. Specifically, while substantially all of the cord 20 can pass through the second end 1 8 opening to wind around the cylinder 26, the device connector 22 is too wide to pass through.
• the housing 12 includes a first recess 34 sized for receiving the device connector 22 and a mount 36 for engaging the device connector 22 when fully retracted.
• the device connector 22 is fully retained within the profile of the housing 12 when fully retracted, thus eliminating the clutter and safety hazards presented by having loose cords or connectors on the device 10 when not in use.
• the housing 12 includes a second, female connector 38 with its own electrical connection to the circuit board 32.
• This embodiment thus permits a user, if desired, to connect more than one different form factor of connector to a single power converter, or more than one device at a time to the same power converter.
• the device 10 includes a power source connector 16 connected to the housing 12 via a hinged connection 40.
• the housing further includes a second, power connector recess 42, which enables the plug or power source connector to be folded within the profile of the housing 12 when not in use, thus eliminating another source of potential damage to the device 10 when not in use.
• the device 1 10 includes a main housing 1 12 and a modular AC charging unit 1 14.
• This embodiment works generally in the same manner as the embodiments of Figures 1 -4, with the addition of a battery 150, and with the use of the modular AC unit.
• the device 1 10 still has at least one power plug connected to the housing 1 12 in the form of folding wall plug 1 16 or a folding USB plug 146.
• the circuit board functionality is split between the main housing unit 1 12 and the modular AC charging unit 1 14.
• the main housing 1 12 includes a DC charging unit
• the modular AC charging unit 1 14 includes an AC charging circuit 132.
• the device 1 1 0 can swap between an AC power source (such as a wall plug), a DC power source (such as a USB connection) or a battery source in the absence of any outside power source.
• the device 21 0 includes a main housing 212 with a separate wall mount power plug module 214 and a USB power plug module 216.
• the main housing 212 includes a power plug connector 246, such as a USB connector or the like which permits connections that facilitate swapping between wall mount power plug module 214 and USB power plug module 216.
• the device 210 can swap between an AC power source (such as a wall plug) by using the separate wall mount power plug module 214 as shown in FIGURE 1 1 , a DC power source (such as a USB connection) USB power plug module 216 or by relying upon the battery source 250 in the absence of any connection to an outside power source.
• an AC power source such as a wall plug
• a DC power source such as a USB connection
• USB power plug module 216 or by relying upon the battery source 250 in the absence of any connection to an outside power source.
• the connection with main housing 212 and any separate module may be done by placing a male or female power plug connector 246 on the main housing, with a reciprocal connector (not shown on) the wall mount power plug module 214 and a USB power plug module 216.

Landscapes

• Engineering & Computer Science (AREA)
• Power Engineering (AREA)
• Charge And Discharge Circuits For Batteries Or The Like (AREA)
• Connector Housings Or Holding Contact Members (AREA)
• Electric Cable Arrangement Between Relatively Moving Parts (AREA)

Applications Claiming Priority (2)

Publications (2)

Family

ID=58662392

Family Applications (1)

Country Status (6)

Family Cites Families (19)

• 2016
  • 2016-02-26 EP EP16862608.3A patent/EP3371868A4/de not_active Withdrawn
  • 2016-02-26 WO PCT/US2016/019703 patent/WO2017078769A1/en active Application Filing
  • 2016-02-26 CN CN201680064871.7A patent/CN108352698A/zh active Pending
  • 2016-02-26 CA CA3004274A patent/CA3004274A1/en not_active Abandoned
  • 2016-02-26 JP JP2018544020A patent/JP2018534756A/ja active Pending
• 2019
  • 2019-01-30 HK HK19101644.7A patent/HK1259283A1/zh unknown

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