CA2409465C - Modular solar battery charger - Google Patents

Modular solar battery charger Download PDF

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Publication number
CA2409465C
CA2409465C CA002409465A CA2409465A CA2409465C CA 2409465 C CA2409465 C CA 2409465C CA 002409465 A CA002409465 A CA 002409465A CA 2409465 A CA2409465 A CA 2409465A CA 2409465 C CA2409465 C CA 2409465C
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CA
Canada
Prior art keywords
cooperative engagement
body member
battery charger
set forth
battery
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CA002409465A
Other languages
French (fr)
Other versions
CA2409465A1 (en
CA2409465E (en
Inventor
Po K. Lau
Sass M. Peress
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ICP Global Tech Inc
Original Assignee
ICP Global Tech Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ICP Global Tech Inc filed Critical ICP Global Tech Inc
Publication of CA2409465A1 publication Critical patent/CA2409465A1/en
Application granted granted Critical
Publication of CA2409465C publication Critical patent/CA2409465C/en
Publication of CA2409465E publication Critical patent/CA2409465E/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/42Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/46Accumulators structurally combined with charging apparatus
    • H01M10/465Accumulators structurally combined with charging apparatus with solar battery as charging system
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/42Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/44Methods for charging or discharging
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
    • H02J7/34Parallel operation in networks using both storage and other DC sources, e.g. providing buffering
    • H02J7/35Parallel operation in networks using both storage and other DC sources, e.g. providing buffering with light sensitive cells
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02SGENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S10/00PV power plants; Combinations of PV energy systems with other systems for the generation of electric power
    • H02S10/40Mobile PV generator systems
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02SGENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S30/00Structural details of PV modules other than those related to light conversion
    • H02S30/20Collapsible or foldable PV modules
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02SGENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S40/00Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
    • H02S40/30Electrical components
    • H02S40/38Energy storage means, e.g. batteries, structurally associated with PV modules
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy
    • Y02E10/56Power conversion systems, e.g. maximum power point trackers
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E70/00Other energy conversion or management systems reducing GHG emissions
    • Y02E70/30Systems combining energy storage with energy generation of non-fossil origin

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Power Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Photovoltaic Devices (AREA)

Abstract

A portable modular solar battery charger of the lap top style is disclosed.
The nodule includes two body members hingedly interconnected with each body member having a solar panel attached thereto. A circuit is provided for transferring the energy from the solar panels to a battery charger which, in turn, official charges a battery. The modular unit is interconnectable with additional similar modules by both a physical link and an electrical link.

Description

TITLE OF THE INVENTION
Modular Solar Battery Cl~at-gcr Po K. Lau Sass M. Peress FIELD OF THE INVEN1'YON
The present invention relates to a modular solar battery charger and, zoore particularly, the present invention relates to a compact module wrhich znay be t o interconnected ~uvith similar modules for charging any source of voltaic piles.
BACKGROUND OF THE INVENTION
Solar panel battery charges have been proposed in the art fox many years and have evolved into many different forms. Characteristic of these panels is the significant size and weight which limits the effectiveness in certaizr applications. The larger i s arrangements are generally employed for charging batteries for use in lighting traffic signs, security lights, etc_ These azxangements are often fixedly secured to a standard or other structure and axe therefore permanent.
In terms of ether more affordable battery charges, the same are often quite large, heavy and thErefore cumbersome to handle. One of the other disadvantages ao associated with the existing arrangements is that the chargers are often delicate and this is particular true of the silicon layers which are integral to the energy transfer process. As such, the structures must often be lxandled wirh extreme care in order to avoid damage of the solar cells.
It would be desirable to have a portable charger that did z~ot present size and mass problems and also which Could be interconnected or reconfigured to function in a host s of environments.
The present inventxoz~ satiates the needs in this field.
SUMMARY
One object of the present invention is to provide improved modular battery charger.
to A further object in one embodiz~r~ent of the present invention is to provide a zmodular solar battery charger, comprising:
(a) a f rst body mezober and a second body member hingedly connected and moveable frotux a storage position where each body member is positioned in overlying faced relation to a use position where each ~s body member is in juxtaposed relation;
(b) a solar panel on each body member for generating electricity when exposed to light;
(c) a circuit means for transferring electrical energy from each panel to a battery; and zo (d) module interconnection means for interconnecting sirnilaz modules in electzical contact.
It has been found that hingedly connected body members afford a user with previously unrealized portability for the solar utut. As will be appreciated by those skilled in the art, any type of battery or voltaic pile wl~icl~ is rechargeable may be recharged by this system. It is also envisioned that the unit can provide power to an apparatus via a passage s of energy into a capacitor network. As mentioned herein above, a convenient advantage to this structure is seen in the enhanced durability of the solar panels- As is known, solar panels are typically quite fragile and by providing a strong plastic or other synthetic material body to support the panels, the user can use the panels for applicatxoz~s previously not possible-to The arrangement has been designed to facilitate interconnection of similar modules for applications requiring higher power. As a distinct advantage, since the units are modular a large number of 'them can be linked and disassembled wluch was not possible with the larger and move massive units in the prior art.
Having thus described the invention, reference will now be made to the a s accompanying drawings illustrating preferred embodiments.
BRIEF DESCRIPTION OF THE DRAWINGS
Figure 1 is a perspective view of one embodiment of the present invention;
Figure 2 is an exploded view of the device shown ire Figure 1;
Fi~g~.ue 3 is a view of the underside of the device;
ao Figure 4 is a perspective view of two united linked together, and Figure 5 is a perspective view of an alternate embodiment of the present invention.
Similar numerals in the figures denote similar elements.
DETAILED DESCRIPTYO~T OF THE PREFERRED E1V~BODIMENTS
Referring now to the drawings, Figure 1 illustrates the overall structure of s the battery charger globally denoted by numeral 10. The arrangement is shop in a closed condition in Figure I and includes a pair of body members 12 and 14 each of which includes a solar cell array 16 and 18, respectively. As seen in Figure 2, each solar cell array 16 and 18 is spaced inwardly from the perimeter of its respective body member 12 or 14.
The body members 12 and 14 are interconnected by a hinge, each body io member 12 and 14 having mating sections 20 comprising the hinge. The hinge 20 includes opposed ends 22 and 24 each serving to receive an inserted male electrical contact 30 or a female electrical contact receptacle 34. It will be understood that each individual unit 10 includes one of the removable male connector 30 for interconnecting the female connectors 34. This has been found to be particularly useful for interconnection of similar modules so ~ s that the same eau be ganged to multiply the charging power of an interconnected unit, such is that shown in Figure 4 relative to the single uz~xt shown in Figure 2.
In order to ensure positive contact and prevent any inadvertent disconnection of a ganged unit, each unit 10 further includes a retractable extension 40, shown best in Figure 3 and which is adapted to extend outwardly from one of the body members 12 or 14.
2o In the example, body member 14 includes the retractable proj ectaoz~ 40 which retracts into and out of the body member 14. Extension and retraction is achieved by actuating slidable Iocks 44 which are molded into the under side of one of the body paaels. Any suitable az~rangement can be ennployed to retain the projection 40 in either its retracted position as shown in Figure 3 or the extended position (not shown). Projection 40 cooperates and is received by a mating receptacle 48 extending within one of the body members l2.or 14, rn this manner, the extension of projection 40 into receptacle or slut 48 achieves a physical bridging and locking connection between ganged unfits, for added security and strength and s therefore also alleviates any mechanical stress that would be placed on the electrical connection between interconnected units.
The underside of body mennbez~ 14, shown in Figure 3, also includes a peripheral ch.a~nnel 49 which has an open end adjacent projection 40. Tha channel 48 is associated with each edge of the body panel 14 as shown and is adapted to accommodate a substantially rectangular battery pack (not shown), slidably inserted therein.
The battery pack may be charged from the energy received by solar arrays 16 and 18 with the energy being transferred directly to the battery pack by two connection contacts on the underside of body member 14, which make wiping contact with the battery terminals as the battery is slid home along channel 49.
is The underside of panel 14 also includes a pair of support legs 60 which are hingedly connected to the body for movement outwardly of the body such that they are substantially orthogonal relative to the body member 14 in a use position, to support the body member 14, in an inclined position.
When not in use, the body members 12 and 14 can be moved from an open ao condition such as that shown in Figure 2 to a closed position, in overlying facing relation and retained in this position by a Conventional lock mechaniszu_ The male portion of the lock is denoted by numeral 64 in body member 14 and the female portion 68 is in body member 12 which receives member 64. A release button 72 is provided to disengage the connected portions 64 and 68.
As a protective mechanism, each end 22 and 24, when similar units are not connected will include protective covers 76 which prevent any debris from entering the contacts.
Turning to Figure 5, shown is a further embodiment of the present invention where additional solar arrays 16' and 18' are associated with the overall unit. The auxiliary solar arrays 16' and 18' are preferably hingedly cozyxxected at 80 by hinges (not shown) to a respective body panel 16/18. When not in use, the auxiliary panel lb~ can simply be folded ~o inwardly towards one another_ The unit is thus folded into a closed, mutually protective position, The additional ox auxiliary panels 16' and 18' can be incorporated where the voltage requirements to charge a battery are higher or the overall duty cycle of the arrangement is more strenuous.
With 'respect to the material of which the unit 10 may be made, the body ~ s membezs 12 and 14 are preferably constructed of non-electxo magnetic materials which ate also W stabilized to prevent premature degradation inherent with solar exposure. Suitable nn~aterials include high impact polystyrene, composite materials, ceramics, eu.
With respect tv the solar arrays, the individual choice of material will depend upon the voltage requirements of the battery and thus this parameter will be well ao appreciated by one skilled in the art.
It will be understood that any number of units cans be ganged together.

Although embodiments of the invention have been described above, it is not limited thereto and it will be apparent to these skilled in the axt that numerous modifications form part of the present invention insofar as they do not depart from the spirit, naturE and scope of the claxrr~ed and descabed invention.
s

Claims (20)

1. A modular solar battery charger, comprising:
a plurality of modules that include:
(a) a first body member and a second body member hingedly connected and moveable about a hinge axis from a storage position where each body member is positioned in overlying faced relation to a use position where each body member is in juxtaposed relation;
a solar panel on each body member for generating electricity when exposed to light;
(b) a circuit means for transferring electrical energy from each said panel to a battery; and (c) module interconnection means for interconnecting at least two of said modules side-by-side as a unit with respective hinge axes generally parallel to one another and with said at least two of said modules in electrical contact to electrically connect respective solar panels of said at least two of said modules, wherein said interconnection means locks together body members of adjacent modules and reduces stress on the electrical contact between said modules.
2. The battery charger as set forth in claim 1, wherein said modular interconnection means comprises first cooperative engagement means and second cooperative engagement means, said second cooperative engagement means adapted for releasable cooperative engagement with said first cooperative engagement means of a similar module.
3. The battery charger as set forth is claim 2, wherein said first cooperative engagement means comprises a male electrical connection member.
4. The battery charger as set forth in claim 2, wherein said second cooperative engagement means comprises a female electrical connection member.
5. The battery charger as set forth in claim 2, wherein said module interconnection means includes third cooperative engagement means and fourth cooperative engagement means, said fourth cooperative engagement means adapted for releasable connection with said third cooperative engagement means of similar panel.
6. The battery charger as set forth in claim 5, wherein said third cooperative engagement means and said fourth cooperative engagement means physically link connected modules in a non-electrical manner.
7. The bakery charger as set forth in claim 1, wherein said battery charger further includes support means for supporting at least one of said first body member and said second body member in an inclined attitude relative to horizontal.
8. A modular solar battery charger, comprising:
(a) a substantially rigid housing including a first substantially rigid body member and a second substantially rigid body member hingedly connected together and moveable about a hinge axis from a storage position where each body member is positioned in overlying faced relation to a use position where each body member is in juxtaposed relation;
(b) a solar panel fixedly mounted on each body member for generating electricity when exposed to light, wherein each said solar panel remains an a respective body member when in said use position and when in said storage position in which said solar panel is stored within said housing;
(c) a circuit arranged to transfer electrical energy from each said panel to a battery; and (d) at least one interconnector on at least one of said body members configured to fixedly interconnect similar battery chargers side-by-side as a unit with respective hinge axes generally parallel to one another and with said similar battery charges in, electrical contact to connect solar panels of said similar battery chargers.
9. The battery charger as set forth in claim 8, wherein said at least one interconnector includes a first cooperative engagement member and a second cooperative engagement member mounted on at least one of said body members, said second cooperative engagement member adapted for releasable cooperative engagement with a similar first cooperative engagement member of a similar battery charger.
10. The battery charger as set forth in claim 8, wherein said first cooperative engagement member includes a male electrical connection member and said second cooperative engagement member includes a female electrical connection member.
11. The battery charger as set forth in claim 8, wherein at least one interconnector includes a third cooperative engagement member and a fourth cooperative engagement member, said fourth cooperative engagement member adapted for releaseable connection with a similar third cooperative engagement member of a similar panel.
12. The battery charger as set forth in claim 11, wherein said third cooperative engagement member and said fourth cooperative engagement member physically link connected battery charges in a non-electrical manner.
13. The battery charger as set forth in claim 8, wherein said battery charger further includes a support that supports at least one of said first body member and said second body member in an inclined attitude relative to horizontal.
14. The battery charger as set forth in claim 8, wherein said first substantially rigid body member and said second substantially rigid body member are connected via a hinge having overlapping mating sections on both the first and second body members, wherein an axis of rotation of said hinge extends through said mating sections on both said first and second body members.
15. The battery charger as set forth in claim 8, wherein said first and second body members are made with a strong synthetic material that protects the solar panels.
16. The battery charger as set forth in claim 14, wherein at least one of said at least one modular interconnector is located on a side of at least one of said first and second body member, which side extends generally perpendicular to said axis.
17. The battery charger as set forth in claim 8, wherein said body members are made from materials from the group consisting of high impact plastics, composite materials and ceramics.
18. A modular solar battery charger, comprising:
(a) a first body member and a second body member hingedly connected and moveable from a storage position where each body member is positioned in overlying faced relation to a use position where each body member is in juxtaposed relation;
(b) a solar panel on each body member for generating electricity when exposed to light;
(c) a circuit means for transferring electrical energy from each said panel to a battery;
(d) module interconnection means for interconnecting similar modules in electrical contact;
(e) wherein said modular interconnection means comprises first cooperative engagement means and second cooperative engagement means, said second cooperative engagement means adapted for releasable cooperative engagement with said first cooperative engagement means of a similar module;
(f) wherein said module interconnection means includes third cooperative engagement means and fourth cooperative engagement means, said fourth cooperative engagement means adapted for releasable connection with said third cooperative engagement means of similar panel; and (g) wherein said third cooperative engagement means and said fourth cooperative engagement means physically link connected modules in a non-electrical manner.
19. A modular solar battery charger, comprising:
(a) a first substantially rigid body member and a second substantially rigid body member hingedly connected together and moveable from a storage position where each body member is positioned in overlying faced relation to a use position where each body member is in juxtaposed relation;
(b) a solar panel fixedly mounted on each body member for generating electricity when exposed to light, wherein each said solar panel remains on, a respective body member when in said use position and when in said storage position;
(c) a circuit arranged to transfer electrical energy from each said panel to a battery;
(d) at least one interconnector on at least one of said body members configured to interconnect similar battery chargers in electrical contact;
(e) wherein at least one interconnector includes a third cooperative engagement member and a fourth cooperative engagement member, said fourth cooperative engagement member adapted for releasable connection with a similar third cooperative engagement member of a similar panel; and (f) wherein said third cooperative engagement member and said fourth cooperative engagement member physically link connected battery charges in a non-electrical manner.
20. The battery charger as set forth in claim 1, wherein said first body member and said second body member form at least part of a substantially rigid enclosure that encloses the solar panels in said storage position.
CA2409465A 2001-11-16 2002-10-23 Modular solar battery charger Expired - Lifetime CA2409465E (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/897,936 2001-07-05
US09/987,936 US6650085B2 (en) 2001-11-16 2001-11-16 Modular solar battery charger

Publications (3)

Publication Number Publication Date
CA2409465A1 CA2409465A1 (en) 2003-05-16
CA2409465C true CA2409465C (en) 2004-09-07
CA2409465E CA2409465E (en) 2004-09-07

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US20030094921A1 (en) 2003-05-22
CA2409465A1 (en) 2003-05-16
US6650085B2 (en) 2003-11-18

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