The present invention relates to fuel cell power systems and in particular to the use of fuel cells to provide power to computer hardware or audio devices.
Portable personal computing, data processing and/or telecommunications devices are known to have significant limitations in the duration of their battery life. In this patent specification, the expressions “portable computer system”, “portable computer device”, “computer” or “computer device” are intended to encompass all such data processing devices including lap-tops, netbooks, palm computers, tablet computers, personal organizers, ‘smart phones’ and the like.
Significant efforts have been made in recent years to extend the period for which these battery-powered, computer-based devices can operate independently of a mains power supply. Typically, extending the period of independence from a mains power supply requires improvements in battery technology, increased battery size or substitute battery packs. Each of these solutions can increase cost, weight and/or size of the equipment to be carried and thereby increase inconvenience to the user. In addition, there are still significant limitations in the energy density achievable with battery power.
More recently, fuel cells have been recognized as a potential alternative portable power supply for computing devices. However, integration of fuel cells into portable computer devices themselves may not always be convenient, and also does not address how to extend the battery life of existing hardware into which a fuel cell cannot conveniently be integrated or retrofitted.
Devices, systems, and methods are disclosed herein directed to aspects of a portable speaker having a housing; audio speaker circuitry within the housing to provide an audible output; a data interface for providing data transfer to and/or from a computer or audio device; a fuel cell power source incorporated into the portable speaker; a power interface for providing power transfer to the computer or audio device when connected thereto; and a power controller configured to supply power from the fuel cell power source to the power interface for supplying said power to said computer or audio device when connected thereto. In some instances the portable speaker housing has a base, and the portable speaker comprising a detachable fuel cartridge for supplying fuel to the fuel cell, the cartridge configured to be operably coupled to the base of the housing, in which the detachable fuel cartridge, when coupled to the base of the housing, defines a base of the portable speaker.
Devices, systems, and methods are disclosed herein directed to aspects of a portable speaker having a housing; audio speaker circuitry within the housing to provide an audible output; one of a wired, USB and a wireless data interface for providing data transfer to and/or from a computer or audio device; a fuel cell power source incorporated into the portable speaker; a power interface for providing power transfer to the computer or audio device when connected thereto; and a power controller configured to supply power from the fuel cell power source to the power interface for supplying said power to said computer or audio device when connected thereto. In some instances the power controller is configured to recharge the computer or audio device using the fuel cell power source incorporated into the portable speaker when the portable speaker is connected to the computer or audio device. In some instances the power controller is configured to recharge the computer or audio device when the computer or audio device is switched off. In some instances the power controller is configured to power and recharge the computer or audio device when the computer or audio device is switched on.
Devices, systems, and methods are disclosed herein directed to aspects of a portable speaker having a housing; audio speaker circuitry within the housing to provide an audible output; a data interface for providing data transfer to and/or from a computer or audio device; a fuel cell power source incorporated into the portable speaker; a power interface for providing power transfer to the computer or audio device when connected thereto; and a power controller configured to supply power from the fuel cell power source to the power interface for supplying said power to said computer or audio device when connected thereto further including a controller configured to control operation of the fuel cell power source according to instructions received from the computer device via said data interface. In some instances further including a detachable fuel cartridge coupled to the housing. In some instances the portable speaker is a computer peripheral device.
Devices, systems, and methods are disclosed herein directed to aspects of a portable speaker coupling to a computer or audio system, having a housing, audio speaker circuitry within the housing for providing audible output when connected to the computer or audio system; a fuel cell disposed within the housing; and, wherein at least an external portion of the housing comprises a detachable fuel cartridge for supplying fuel to the fuel cell. In some instances the detachable fuel cartridge comprises the base of the portable speaker and the cartridge may include low friction pads on the lower surface thereof. In some instances the portable speaker is a computer peripheral device.
Devices, systems, and methods are disclosed herein directed to aspects of a stand/or docking station for a computer device, the stand/docking station having a housing configured to engage with the computer device to present the computer device at one or more specific angles of presentation; a fuel cell power source disposed within the housing; a power interface for providing power transfer to the computer device when connected thereto; and a power controller configured to supply power from the fuel cell power source to the power interface for supplying said power to said computer device when connected thereto. In some instances further including a photovoltaic panel configured to provide a second power source in addition to the fuel cell power source.
The disclosure, as well as the following further disclosure, is best understood when read in conjunction with the appended drawings. For the purpose of illustrating the disclosure, there are shown in the drawings exemplary implementations of the disclosure; however, the disclosure is not limited to the specific methods, compositions, and devices disclosed. In addition, the drawings are not necessarily drawn to scale. In the drawings:
The general disclosure and the following further disclosure are exemplary and explanatory only and are not restrictive of the disclosure, as defined in the appended claims. Other aspects of the present disclosure will be apparent to those skilled in the art in view of the details as provided herein. In the figures, like reference numerals designate corresponding parts throughout the different views.
Users of portable computer devices may also use such computer devices in combination with one or more peripheral devices such as a mouse, a keyboard, a printer, a scanner, a projector, a portable speaker, a docking station/stand and the like. These peripheral devices themselves may also be portable and can be constructed to have incorporated within them a fuel cell system capable of powering not only the peripheral device itself, but also a portable computer device when connected to the peripheral device. The expression ‘peripheral device’ is intended to encompass devices that perform an input and/or output function, which may be a data input and/or output function, to the computer or audio device to which they are in signal communication, electrically or electronically attached, and which are physically separate or separable from the device to which they are electronically attached. An audio device may or may not be a computer device.
Incorporated within the upper housing portion 2 is a fuel cell (not visible in
Comfort of the user of a computer mouse is an important consideration in mouse design and the profile of the upper housing portion 2 can be configured to any suitable profile to optimise the ergonomics. In a preferred configuration, the ventilation hole arrays 6 and 7 at the forward end of the mouse are configured as the exhaust vents of the fuel cell while the ventilation hole array 8 can be configured as the air inlet for the fuel cell. In this way, the warm air stream from the fuel cell during operation can be vectored away from the user's hand.
The base 15 of the mouse 1 preferably provides a substantially planar lower surface 16 which is configured for sliding engagement with the support surface on which the mouse is to be used, e.g. mouse mat, table top and the like. The lower surface 16 may have any suitable profile (preferably, though not necessarily planar, e.g. concave upwards), and may be provided with low friction coatings such as Teflon pads (not shown) for optimised sliding motion. The base 15 also serves as a removable fuel cartridge 20 to supply the fuel cell with any suitable fluid fuel. The fuel may be stored in the cartridge in solid, liquid or gaseous form but is preferably delivered to the fuel cell in fluid form, e.g. gaseous or liquid form. Exemplary fluid fuels include hydrogen.
The fuel cartridge 20 is preferably configured to be integrated into the overall profile of the mouse housing, though preferably detachable to enable easy fuel replenishment and cartridge refilling. In the arrangement shown in
A schematic diagram of the fuel cartridge 20 is shown in
Computer mice are typically designed to be of a certain size for optimal use by the human hand. As such, they typically have a significant amount of empty space within the housing. This makes it particularly advantageous to use some of this space to provide an additional power source, since the space is otherwise wasted.
An alternative peripheral device could be a keyboard.
Incorporated within the upper housing portion 42 is a fuel cell (not visible in
The base 41 of the keyboard 40 preferably provides a substantially planar lower surface for providing a stable keyboard support and may include feet or adjustable legs for varying the height and/or tilt of the keyboard upper surface. The base 41 serves as a removable fuel cartridge 45 to supply the fuel cell in the keyboard upper housing portion 42 with a suitable fluid fuel, as described previously in connection with the mouse of
The fuel cartridge 45 is preferably configured to be integrated into the overall profile of the keyboard housing, though preferably detachable to enable easy fuel replenishment and cartridge refilling. The fuel cartridge 45 includes an outer peripheral edge 43 that approximately conforms to the profile of the upper housing portion 42 and defines the shape of the keyboard. The cartridge 45 includes an upper surface 44 which includes a gas feed connection 46 and a service port 47. The upper surface 44 engages with the upper housing portion 42 in any suitable manner, such as by push-fit or by a mechanical locking arrangement (not shown). The gas feed connection 46 is configured to mate with a suitable valve on the underside of the upper housing portion 42 for conveying fluid fuel to the fuel cell. The service port 47 may provide additional functionality, e.g. for refilling/purging/cleaning cartridges.
Keyboards are typically designed to be of a certain size for optimal use by human hands. As such, they typically have a significant amount of empty space within the housing. This makes it particularly advantageous to use some of this space to provide an additional power source, since the space is otherwise wasted.
The first portion 81 of the housing comprises audio speaker circuitry which may include a wireless communication microprocessor, solid state memory and software, and a speaker 83 for providing an audible output. The speaker mechanism may be of the piezoelectric-type or electromagnetically actuated cone-type, for example. The first portion 81 of the housing also comprises a fuel cell (not visible in
The second portion 82 serves as a removable fuel cartridge 45 in this example for supplying the fuel cell in the first portion 81 with a suitable fluid fuel, as described previously in connection with the mouse of
The first portion 81 may engage with the second portion 82 in any suitable manner, such as by a push-fit or by a mechanical locking arrangement (not shown). The engagement mechanism between the first and second portions 81, 82 may also allow the passage of fuel between the first and second portions 81, 82 in order to enable operation of the fuel cell in the first portion 81 using fuel from the fuel cartridge in the second portion 82.
In general, a fuel cartridge may be provided within, or externally to, the housing of the audio speaker 80.
Portable speakers are by their very nature required to be compact in order to be readily transportable. In addition, in portable speakers in which sounds are formed using a speaker cone, it is particularly advantageous to provide a fuel cell power source in what would otherwise be wasted space around the cone.
Other forms of peripheral device such as scanners, printers, projectors, docking station/stands may also be configured to have a fuel cell and cartridge incorporated therein in similar manner.
A particular benefit of providing a peripheral device, such as a computer mouse, with a fuel cell power source is that the fuel cell can be used not only to power the peripheral device itself, but also to power the computer device when connected thereto. A mouse, keyboard, printer, audio speaker or the like is conventionally connected to a portable computer device by way of a USB, or other similar, electrical connector. The USB or other connector conventionally provides a bus for data transfer between the computer device and the peripheral and also a power line for transferring power from the computer to the peripheral device to power the peripheral device. In one aspect, the present invention recognizes that there is considerable advantage in enabling a reverse power transfer to take place. In other words, the peripheral device with an on-board fuel cell can be used to provide power to the computer device. Thus, the battery life of the computer device can be extended by avoiding or reducing power drain on the computer battery when the peripheral device is connected thereto. Still further, the peripheral device could also be used to recharge the portable computer device when the peripheral is connected thereto. The peripheral device can be used to recharge the portable computer device when it is switched on or off. The peripheral device can be used to power, or to power and recharge, the portable computer device when it is switched on.
A preferred arrangement is shown schematically in
The power transfer from peripheral device 60 to computer device 65 can be managed intelligently by using two-way data transfer between the computer device 65 and the peripheral device 60 on a data line 61a under the control of data interface 68. Thus, the peripheral device 60 may be configured to indicate, to the computer device 65, that fuel cell power is available. In such a circumstance, the computer device 65 may be configured to detect whether it has mains power or is running on batteries. If the computer device has mains power available, it may elect to not demand power from the peripheral device, and may supply power to the peripheral device so that the fuel cell 63 therein may remain inactive or quiescent. If the computer device does not have mains power available, it may elect to demand power from the peripheral device, e.g. sufficient for full normal operation, or sufficient for assistance to battery operation (to extend battery life), or for battery recharge, or combinations thereof.
The power is preferably delivered from the peripheral device 60 to the computer device 65 using a common data communication/power lead 61, such as USB or USB-OTG. However, for backward compatibility with existing hardware or standards, it may be preferable to have separate electrical connectors for data (e.g. USB) and power (e.g. a conventional or proprietary power plug). Separate electrical connector plugs may be provided on the end of a common multicore cable to the peripheral device for user convenience. For example, the computer mouse 1 could be provided with a lead 30 (
Data communication between the computer device and the peripheral device could alternatively be provided by a wireless communication channel such as infrared or Bluetooth™. Power communication between the peripheral device and the computer device could alternatively be provided by a wireless technology such as inductive transfer of power. This latter aspect could be of particular advantage when the peripheral device and the computer device are placed in close proximity to one another.
In other arrangements shown in
A docking station/stand is conventionally of a size that is at least partly determined by the size of the tablet computer being attached thereto and thus typically has a significant amount of empty space within the housing. This makes it particularly advantageous to use some of this space to provide an additional power source, since the space is otherwise wasted.
The docking station/stand may be connected to a computer device (tablet) by way of a USB or similar multifunction (i.e. power and data) cable as described above. More preferably, the cable would be replaced by a set of connectors on the side or base of the tablet which automatically connect to complementary connectors on the docking station/stand when the tablet is mounted thereto. The close proximity of the tablet computer device to the docking station/stand also makes the possibility of wireless power and data transfer easier and potentially advantageous. Power transfer between the tablet computer and the docking station/stand can be managed intelligently by using two-way data transfer as described earlier in connection with the mouse and keyboard arrangements.
In a further arrangement, as shown in
All of the embodiments described above of a significant advantage that the battery life of a portable computer device can be extended without necessarily increasing battery size and/or performance by the expedient location of a fuel cell power system in a peripheral device such as a mouse or docking station/stand that may be commonly also used by the person carrying the portable device. Such a peripheral may, without any action required of the user, intelligently supplement the power available to the portable device to provide full or partial operating power and/or recharging power.
Other embodiments are intentionally within the scope of the accompanying claims.
This application claims full Paris Convention Priority of U.S. Provisional Application No. 61/549,492, entitled “Fuel Cell for Powering Computer Apparatus,” filed on Oct. 20, 2011, and U.S. application Ser. No. 13/632,894, entitled “Fuel Cell for Powering Computer Apparatus,” filed on Oct. 1, 2012, the contents of which are incorporated by reference herein, as if fully set forth in their entirety.
Number | Date | Country | |
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61549492 | Oct 2011 | US |
Number | Date | Country | |
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Parent | 13632894 | Oct 2012 | US |
Child | 15014462 | US |