GB2604893A

GB2604893A - Improved power connector

Info

Publication number: GB2604893A
Application number: GB2103691.8A
Authority: GB
Inventors: James Henry
Original assignee: Namene Solar Lights Ltd
Current assignee: Namene Solar Lights Ltd
Priority date: 2021-03-17
Filing date: 2021-03-17
Publication date: 2022-09-21
Also published as: GB202103691D0; WO2022195286A1

Abstract

A power connection module 171 comprises a housing 173 suitable for removeable insertion in an electronic device 101. The module 171 comprises a charging interface 175 that provides a means to receive power from an external power source; and a device interface 177 that provides a means to deliver power from the charging interface 175 to the electronic device 101. The electronic device 101 may be a lighting module. The lighting module 101 may comprise a photovoltaic panel 111. The application further teaches a power connection module (figure 5, 471) which comprises a housing suitable for removeable insertion in a power source device (figure 5, 401). The module (figure 5, 471) comprises a charging interface (figure 5, 475) that provides a means to deliver power from the power source device (figure 5, 401) to an external electronic device (figure 5, 301); and a device interface that provides a means to deliver power to the charging interface (figure 5, 475) from the power source device (figure 5, 401).

Description

1 Improved Power Connector 3 The present invention relates to the field of power connectors. More specifically, the present 4 invention concerns improvements to power connectors, such as may be used in solar home systems and solar lighting apparatus, which results in improved or enhanced functionality, 6 reduced costs and future-proofing.

8 Background to the invention

In sub-Sahara Africa there are an estimated 620 million people who are living without access 11 to electricity. As a result, many Africans rely upon kerosene lamps for lighting.

12 Unfortunately, kerosene lamps are dangerous and polluting, costly to run, and above all are 13 a health risk to those who use them, particularly in domestic settings.

In an attempt to eliminate the need for kerosene lamps for lighting, and to meet the needs of 16 the 1.2 billion people worldwide who have no access to electricity, the Applicant's SM100 1 solar light was developed. This device incorporates a photovoltaic panel which charges an 2 internal battery during the day and a light, powered by the battery, which provides a wide 3 distribution of light at night or when otherwise required.

The SM100 solar light provides a sustainable lighting solution which has been proven to 6 improve the lives of human beings, taking advantage of pollution free electricity generated by 7 the sun. Children are enabled to study and feel safe after dark, parents can work to earn an 8 income or indeed increase their income after the sun sets, there is no need to purchase 9 expensive kerosene, and it increases safety when working, walking or cycling after dark.

11 Despite the many and varied uses of the SM100 solar light which has proved transformative 12 for so many people, the Applicant continues to seek ways to improve it and other similar 13 devices (commonly referred to as "pico" solar devices).

Accordingly, it is an object of at least one aspect of the present invention to improve upon 16 the SM100 solar light, and to obviate and/or mitigate one or more disadvantages of other 17 known/prior solar lights.

19 It is also known to provide stand-alone photovoltaic systems, termed solar home systems, to provide power for lighting and other appliances to off-grid homes. Such systems typically 21 comprise a standalone photovoltaic source, power storage and fixed multiple light points.

22 Solar power offers the best opportunity for providing clean and safe lighting to the world's 23 rural poor, but unfortunately solar home systems are expensive, and in many cases 24 prohibitively so, and are generally inflexible and difficult to repair or upgrade.

26 Accordingly, it is an object of at least one aspect of the present invention to improve upon 27 existing solar home systems, and to obviate and/or mitigate one or more disadvantages of 28 such systems.

Further aims and objects of the invention, and in particular those which have broader 31 application and utility than in the specific areas identified above, will become apparent from

32 reading the following description.

1 Summary of the invention

3 According to a first aspect of the invention, there is provided a power connection module 4 comprising: a housing for removeable insertion in an electronic device; 6 a charging interface that provides a means to receive power from an external power 7 source; and 8 a device interface that provides a means to deliver power from the charging interface 9 to the electronic device.

11 The device interface, i.e. that which interfaces with the electronic device, might alternatively 12 be referred to as (or understood to be) an internal interface, and the charging interface, i.e. 13 that which interfaces with the power source, might alternatively be referred to as (or 14 understood to be) an external interface.

16 Preferably, the electronic device is a lighting module. Optionally, the lighting module 17 comprises a photovoltaic panel. Alternatively, the electronic device may be selected from 18 the group comprising VVi-Fi routers and dongles (including mesh network devices), mobile 19 phones and cellular hotspots, laptop computers and tablets, speakers (for example Bluetooth speakers), radios, cameras, payment devices (such as contactless and/or card 21 readers), battery packs and similar devices, fans, medical, health and wellbeing devices 22 (such as blood sugar monitors, blood pressure monitors, thermometers, sleep monitors, sex 23 toys, toothbrushes, razors/shavers and scales) and wearables (such as fitness trackers, 24 heart and ECG monitors, prosthetics, AR and VR headsets and glasses), baby monitors and nightlights (including those with cameras), a fingerprint reader or a retina scanner, a barcode 26 reader (including OR and 3D barcode readers), electronic mosquito deterrents, USB power 27 hubs, water filters, water quality testers, light monitors, air quality sensors, motion sensors, 28 fire and smoke detectors, carbon monoxide sensors, occupancy sensors, 29 security/surveillance cameras (including thermal imaging cameras), alarms (including personal safety and home alarms), travel and sports equipment (such as bike lights), 31 handwarmers, headphones, GPS devices (including heads up displays), electronic 32 cigarettes and vaping devices. Further alternatively, the electronic device may be selected 33 from the group comprising kitchen white goods, industrial electronics and electric vehicles 34 (for example electric cars and scooters).

1 Preferably, the charging interface comprises a female port or jack. Alternatively, the 2 charging interface comprises a male connector or plug. The charging interface may 3 comprise a female port or jack or male connector or plug selected from the group of interface 4 types comprising USB-A, USB-B, Mini-USB, Micro-USB, Audio Jacks, Ethernet, 2-and 3-Pin Power, Pogo-Pin, Plate-to-plate, inductive charging interfaces and proprietary/manufacturer- 6 specific interfaces (such as Apple Lightning interfaces).

8 Optionally, the charging interface and the device interface also provide a means to transfer 9 data to and from the electronic device.

11 Preferably, the device interface is configured to be received in a corresponding socket of the 12 electronic device, preferably when the power connection module is inserted into the 13 electronic device. Preferably, the socket is located on a PCB of the electronic device.

Preferably, the device interface comprises a male connector or plug. Alternatively, the 16 charging interface comprises a female port or jack. The charging interface may comprise a 17 female port or jack or male connector or plug selected from the group of interface types 18 comprising USB-A, USB-B, Mini-USB, Micro-USB, Audio Jacks, Ethernet, 2-and 3-Pin 19 Power, Pogo-Pin, Plate-to-plate, inductive charging interfaces and proprietary/manufacturer-specific interfaces (such as Apple Lightning interfaces). Alternatively, the device interface 21 may comprise an edge connector or a socket configured to receive an edge connector.

22 Further alternatively, the device interface may comprise an elastomeric connector.

24 Preferably, the power connection module comprises securing means for securing the power connection module to the electronic device. Preferably, the securing means secures the 26 housing to a corresponding housing of the electronic device. The securing means may 27 comprise screws. Alternatively, the securing means may be selected from the group 28 comprising nuts and bolts, self-tapping screws, rivets, plastic or metal clips, threaded 29 connections, snap fits, friction or push fits, expansion fits, spring-loaded cartridge, shape memory, locking mechanisms (for example twist-lock, keyed and combination mechanisms), 31 magnets, vacuum or suction fit, adhesives or ultrasonic welding, pressure fit or dissolvable 32 (for example water or acid soluble polymer or compostable).

34 Preferably, the power connection module is replaceable with a like power connection module in the event of fault or breakage. Alternatively, or additionally, the power connection module 36 is replaceable with a power connection module comprising a different charging interface.

1 Alternatively, or additionally, the power connection module is replaceable with a power 2 connection module comprising a different device interface. Alternatively, or additionally, the 3 power connection module is replaceable with a blanking plate.

Optionally, the power connection module comprises a power source. The power source may 6 be rechargeable via the charging interface. The device interface may provide a means to 7 deliver power from the power source to the electronic device. Alternatively, or additionally, 8 the charging interface may provide a means to deliver power from the power source to an 9 external device.

11 According to a second aspect of the invention, there is provided a power connection module 12 comprising: 13 a housing for removeable insertion in a power source device; 14 a charging interface that provides a means to deliver power from the power source device to an external electronic device; and 16 a device interface that provides a means to deliver power to the charging interface 17 from the power source device.

19 The device interface, i.e. that which interfaces with the power source device, might alternatively be referred to as (or understood to be) an internal interface, and the charging 21 interface, i.e. that which interfaces with the electronic device, might alternatively be referred 22 to as (or understood to be) an external interface.

24 Optionally, the power source device comprises a battery pack. Alternatively, or additionally, the power source device comprises a mains supply and/or an AC-DC adapter. Optionally, 26 the power source device comprises a photovoltaic panel. Alternatively, or additionally, the 27 power source device comprises a battery.

29 Preferably, the charging interface comprises a male connector or plug. Alternatively, the charging interface comprises a female port or jack. The charging interface may comprise a 31 female port or jack or male connector or plug selected from the group of interface types 32 comprising USB-A, USB-B, Mini-USB, Micro-USB, Audio Jacks, Ethernet, 2-and 3-Pin 33 Power, Pogo-Pin, Plate-to-plate, inductive charging interfaces and proprietary/manufacturer- 34 specific interfaces (such as Apple Lightning interfaces).

1 Optionally, the charging interface and the device interface also provide a means to transfer 2 data to and from the electronic device.

4 Preferably, the device interface is configured to be received in a corresponding socket of the power source device, preferably when the power connection module is inserted into the 6 power source device. Preferably, the socket is located on a PCB of the power source 7 device.

9 Preferably, the device interface comprises a male connector or plug. Alternatively, the charging interface comprises a female port or jack. The charging interface may comprise a 11 female port or jack or male connector or plug selected from the group of interface types 12 comprising USB-A, USB-B, Mini-USB, Micro-USB, Audio Jacks, Ethernet, 2-and 3-Pin 13 Power, Pogo-Pin, Plate-to-plate, inductive charging interfaces and proprietary/manufacturer- 14 specific interfaces (such as Apple Lightning interfaces). Alternatively, the device interface may comprise an edge connector or a socket configured to receive an edge connector.

16 Further alternatively, the device interface may comprise an elastomeric connector.

18 Preferably, the power connection module comprises securing means for securing the power 19 connection module to the power source device. Preferably, the securing means secures the housing to a corresponding housing of the power source device. The securing means may 21 comprise screws. Alternatively, the securing means may be selected from the group 22 comprising nuts and bolts, self-tapping screws, rivets, plastic or metal clips, threaded 23 connections, snap fits, friction or push fits, expansion fits, spring-loaded cartridge, shape 24 memory, locking mechanisms (for example twist-lock, keyed and combination mechanisms), magnets, vacuum or suction fit, adhesives or ultrasonic welding, pressure fit or dissolvable 26 (for example water or acid soluble polymer or compostable).

28 Preferably, the power connection module is replaceable with a like power connection module 29 in the event of fault or breakage. Alternatively, or additionally, the power connection module is replaceable with a power connection module comprising a different charging interface.

31 Alternatively, or additionally, the power connection module is replaceable with a power 32 connection module comprising a different device interface. Alternatively, or additionally, the 33 power connection module is replaceable with a blanking plate.

Optionally, the power connection module comprises a power source. The power source may 36 be rechargeable via the charging interface. The device interface may provide a means to 1 deliver power from the power source to the electronic device. Alternatively, or additionally, 2 the charging interface may provide a means to deliver power from the power source to an 3 external device.

According to a third aspect of the invention, there is provided an electronic device 6 comprising a socket configured to receive a power connection module according to the first 7 aspect or the second aspect. Optionally, the electronic device comprises a power 8 connection module according to the first aspect or the second aspect. Alternatively, the 9 electronic device comprises a blanking plate.

11 Preferably, the electronic device comprises an aperture for receiving the power connection 12 module. The electronic device may comprise a casing in which the aperture is provided.

13 Preferably, the socket is configured for receiving the device interface, for example on a PCB 14 of the electronic device.

1 Alternatively, the electronic device is or comprises a power source. The electronic device 2 may comprise a base module of a solar power system according to any of the fourth to 3 eighth aspects.

According to a fourth aspect of the invention, there is provided a solar power system 6 comprising; 7 a base module; 8 at least one lighting module; and 9 at least one photovoltaic module; wherein the at least one lighting module is removably attachable to the base module 11 to draw power from the base module; 12 wherein the at least one photovoltaic module is removably attachable to the base 13 module to transfer power to the base module; and 14 wherein the base module comprises a power connection module according to the second aspect and/or the at least one lighting module comprises a power connection module 16 according to the first aspect.

18 The modularity of the solar power system of the invention provides a means to expand and 19 supplement the solar power system with additional devices and/or functionality, and the modules being removably attachable (i.e. able to be attached and removable once attached) 21 to the base module enables the solar power system to be compact for transport, portable, 22 used within small spaces when assembled, or disassembled to use various parts in different 23 areas and/or for different purposes.

Preferably, the base module comprises a power supply. Preferably, the power supply 26 comprises at least one rechargeable battery. Preferably, the base module is configured to 27 receive and store power from the at least one photovoltaic module. Alternatively, or 28 additionally, the base module is configured to transfer power from the at least one 29 photovoltaic module to the at least one lighting module and/or at least one consumer module.

32 Optionally, the power connection modules also provide a means to transfer data between 33 the electronic device and the base module.

Preferably, the power connection module is provided on the front of the base module.

36 Preferably, base module comprises a recess, and the power connection module is located 1 within the recess. Preferably, the recess is shaped to correspond with a shape of the 2 lighting module. The lighting module is received within the recess. Preferably, the base 3 module and/or the lighting module comprise retaining means. Optionally, the retaining 4 means comprises a clip to insert in a slot in the lighting module. Optionally, the lighting module comprises a slot to receive a clip or other retaining means of the base module.

7 Preferably, the at least one lighting module comprises a rechargeable battery configured to 8 store energy received from the base module and to power a light source. Optionally, the 9 lighting module comprises a solar panel. Preferably, the lighting module comprises one or more LEDs. Preferably, the lighting module comprises a switch.

12 Preferably, the photovoltaic module comprises at least one solar panel, and may comprise a 13 plurality or array of solar panels. Optionally, the photovoltaic module comprises a 14 rechargeable battery. The battery may comprise a lithium iron phosphate battery.

Alternatively, or additionally, the photovoltaic module is configured to transfer power directly 16 to the base module. Alternatively, or additionally, the solar power system is configured to 17 transfer power directly from the photovoltaic module to an attached lighting module, 18 consumer module, or external device. Optionally, the system further comprises at least one 19 cable to electrically connect at least one photovoltaic module, at least one lighting module and/or at least one consumer module to the base module.

22 Preferably, the photovoltaic module is configured to be received and retained on the rear of 23 the base module. Optionally, the photovoltaic module is substantially hollow, with an open 24 face to receive and cooperate with the rear of the base module. Optionally, the base module and/or the photovoltaic module comprises retaining means. The retaining means may 26 comprise a tab and a corresponding slot, clip, snap-fit, locking mechanism or other means.

28 Preferably, the base module, the at least one lighting module, an at least one consumer 29 module and/or the at least one photovoltaic module comprises a casing. Optionally, the casing comprises ABS and/or polycarbonate. Preferably, the casing comprises a flame 31 retardant and or heat resistant material. Preferably, the casing is water resistant.

32 Optionally, the base module comprises a stand, which is preferably removeable. The stand 33 may be shaped to permit the base module to be hung on a wall. Optionally, the at least one 34 lighting module may comprise a removeable stand.

1 Optionally, the solar power system further comprises at least one consumer module, wherein 2 the at least one consumer module is removably attachable to the base module to draw 3 power from the base module. Optionally, the at least one consumer module is selected from 4 the group comprising Wi-Fi routers and dongles (including mesh network devices), mobile phones and cellular hotspots, laptop computers and tablets, speakers (for example 6 Bluetooth speakers), radios, cameras, payment devices (such as contactless and/or card 7 readers), battery packs and similar devices, fans, medical, health and wellbeing devices 8 (such as blood sugar monitors, blood pressure monitors, thermometers, sleep monitors, sex 9 toys, toothbrushes, razors/shavers and scales) and wearables (such as fitness trackers, heart and ECG monitors, prosthetics, AR and VR headsets and glasses), baby monitors and 11 nightlights (including those with cameras), a fingerprint reader or a retina scanner, a barcode 12 reader (including OR and 3D barcode readers), electronic mosquito deterrents, USB power 13 hubs, water filters, water quality testers, light monitors, air quality sensors, motion sensors, 14 fire and smoke detectors, carbon monoxide sensors, occupancy sensors, security/surveillance cameras (including thermal imaging cameras), alarms (including 16 personal safety and home alarms), travel and sports equipment (such as bike lights), 17 handwarmers, headphones, GPS devices (including heads up displays), electronic 18 cigarettes and vaping devices. Further alternatively, the electronic device may be selected 19 from the group comprising kitchen white goods, industrial electronics and electric vehicles (for example electric cars and scooters).

22 Preferably, the at least one consumer module is attachable to the base module via the 23 lighting module interface or lighting module dock. In which case this may interchangeably be 24 referred to as a consumer module dock or simply a module dock.

26 Embodiments of the fourth aspect of the invention may comprise features corresponding to 27 the preferred or optional features of any other aspect of the invention, or vice versa.

29 According to a fifth aspect of the invention, there is provided a solar power system comprising; 31 a base module; 32 at least one lighting module; and 33 at least one photovoltaic module; 34 wherein the at least one lighting module is removably attached to the base module to draw power from the base module; 1 wherein the at least one photovoltaic module is removably attached to the base 2 module to transfer power to the base module; and 3 wherein the at least one lighting module comprises a power connection module 4 according to the first aspect and/or the base module comprises a power connection module according to the second aspect.

7 Embodiments of the fifth aspect of the invention may comprise features corresponding to the 8 preferred or optional features of any other aspect of the invention, or vice versa, and in 9 particular the first and/or second aspects, and the fourth aspect.

11 According to a sixth aspect of the invention, there is provided a solar power system 12 comprising; 13 a base module; 14 at least one consumer module; and at least one photovoltaic module; 16 wherein the at least one consumer module is removably attachable to the base 17 module to draw power from the base module; 18 wherein the at least one photovoltaic module is removably attachable to the base 19 module to transfer power to the base module; and wherein the at least one consumer module comprises a power connection module 21 according to the first aspect and/or the base module comprises a power connection module 22 according to the second aspect.

24 Embodiments of the sixth aspect of the invention may comprise features corresponding to the preferred or optional features of any other aspect of the invention, or vice versa, and in 26 particular the first and/or second aspects, and the fourth aspect.

28 According to a seventh aspect of the invention, there is provided a solar power system 29 comprising; a base module comprising at least one photovoltaic panel; and 31 at least one consumer module; 32 wherein the at least one consumer module is removably attachable to the base 33 module to draw power from the base module; 34 wherein the base module is configured to store power generated by the at least one photovoltaic panel; and 1 wherein the at least one consumer module comprises a power connection module 2 according to the first aspect and/or the base module comprises a power connection module 3 according to the second aspect.

Embodiments of the seventh aspect of the invention may comprise features corresponding 6 to the preferred or optional features of any other aspect of the invention, or vice versa, and in 7 particular the first and/or second aspects, and the fourth aspect.

1 Brief description of the drawings

3 There will now be described, by way of example only, embodiments of the invention with 4 reference to the drawings (like reference numerals being used to denote like features), of which: 7 Figure 1 shows an exploded view of a lighting module comprising a power connector module 8 according to the invention; Figure 2 shows four different configurations of a lighting module comprising different power 11 connector modules according to the invention; 13 Figure 3 (a) to (e) show a series of different views of the power connector module shown in 14 Figure 1; 16 Figure 4 (a) to (f) shows a series of different views of a power connector module according 17 to the invention, as connected to a generic enclosure; 19 Figure 5 shows a modular solar power system in disassembled form, viewed in perspective to show (a) a power connection module of a base module of the modular solar power system 21 and (b) a corresponding power connection module of a lighting module of the modular solar 22 power system; 24 Figure 6 shows a connection between a power connection module and a PCB/motherboard of a device; 27 Figure 7 shows an alternative connection between a power connection module and a 28 PCB/motherboard of a device; and Figure 8 shows a further alternative connection between a power connection module and a 31 PCB/motherboard of a device.

33 Note that the drawings are not necessarily to scale, certain parts may have been omitted 34 and the proportions of certain parts may have been exaggerated to better illustrate details and features of embodiments of the invention.

1 Detailed description of preferred embodiments

3 The present invention seeks to improve on existing solar lights (and other illumination 4 devices and consumer/electronic devices more generally) and solar home systems, and the following description of embodiments of various aspects of the invention will assist in 6 understanding how these improvements and further benefits have been achieved.

8 The Applicant has identified that power connectors are amongst the mostly frequently and 9 earliest broken components in electronics, particularly those used in dusty, wet and off-grid conditions such as those for which some of the products described herein (by way of non- 11 limiting examples) are intended. In addition to corrosion from moisture and dust which might 12 cause premature failure, general wear and tear will also eventually result in failure. Although 13 simple and rugged interfaces might be provided that are more reliable than existing 14 interfaces, the Applicant has found that such interfaces may not lend themselves to easy repair in the event that failure occurs, or indeed replacement or upgrade in the event of 16 redundancy or obsolefion.

18 Another drawback is that a proprietary arrangement restricts the user to systems and/or 19 infrastructures comprising same or similar kinds of connection. For example, should the base module described in embodiments below (absent the invention) be irreparably 21 damaged or lost, the user would be restricted to powering the associated lighting module via 22 its integrated solar panel (if it has one), unless a replacement base module can be obtained.

23 While this might be attractive from a commercial perspective, the Applicant is more 24 concerned with ensuring that those who need these lighting modules the most are not unduly affected by such limitations. This is in fact true of all conventional dual-charging 26 devices, as explained below.

28 One reason for the limited uptake of conventional portable solar lights is the need for 29 consistent sunshine and the time required to fully charge their internal batteries. For this reason, they have struggled to dislodge global market share from torches and lamps 31 powered by disposable batteries, which themselves present an environmental risk. Uptake 32 of dual-charging devices, as intimated above, has filled the void somewhat. Dual-charging 33 devices are solar lights that can receive power and be charged from a source other than the 34 sun, typically a mains connection or a power bank. The base module described in embodiments below may provide such a secondary source but as with any secondary 36 source reliability of the connection to the solar light may be a concern, particularly for off-grid 1 communities. It therefore becomes critical to eliminate or at least provide contingencies for 2 failure such as an ability to easily repair.

4 To address this potential issue, there is provided a power connector module to replace conventional connection arrangements, or indeed any other connection arrangement in 6 existing solar lighting devices (for example) or systems, as will now be described.

8 Figure 1 shows in exploded view a lighting module 101 which can be seen to comprise a 9 front casing portion 107 and a rear casing portion 109. In this embodiment, the lighting module 101 comprises a photovoltaic panel 111. A rechargeable battery (not visible) stores 11 energy received from the photovoltaic panel 111 and/or from an external source such as a 12 corresponding base module (not shown) or mains supply (also not shown). The lighting 13 module 101 might comprise any other feature that a lighting module may comprise (for 14 example, see the non-limiting lighting module 301 described below), but instead of a conventional interface the lighting module 101 comprises a removable power connection 16 module 171 in accordance with the invention.

18 The removeable power connection module 171, specific examples of which are illustrated in 19 situ in Figures 2 (a), (b) and (c), comprises a housing 173, a charging interface 175 and a device interface 177 (see also Figure 3). The charging interface 175, described in more 21 detail below, provides a means to connect to an external power source and the device 22 interface 177 provides a means to deliver power received from the external source via the 23 charging interface to the device, which in this case is the lighting module 101. In this 24 embodiment the device interface 177 comprises an edge connector and is received in a corresponding socket (not visible) on the PCB (not visible) of the lighting module 101.

26 Figures 3 (a) to (e) show in a series of enlarged views (front, side, top-down, front- 27 perspective and rear-perspective, respectively) the power connector module from Figure 1.

29 As intimated above, Figures 2 (a), (b) and (c) illustrate specific power connection modules 171A, 171B and 1710, respectively. Power connection module 171A comprises a charging 31 interface 175A in the form of a USB-C port; power connection module 171B comprises a 32 charging interface 175B in the form of a DC power jack; and power connection module 175C 33 comprises a charging interface in the form of a magnetic power connector 175C.

Other charging interfaces envisaged by the Applicant but not illustrated include inter alia 36 USB-A, USB-B, Mini-USB, Micro-USB, Audio Jacks, Ethernet, 2-and 3-Pin Power, Pogo- 1 Pin, Plate-to-plate, inductive charging interfaces and proprietary/manufacturer-specific 2 interfaces (such as Apple Lightning interfaces). It will of course be understood that it is not 3 intended to limit the invention to any particular charging interface type, and as-yet 4 undisclosed variants and equivalents will therefore be within the scope of the invention as defined by the claims. Furthermore, in addition to transferring power it is also envisaged that 6 the charging interface may transmit data.

8 Likewise, the device interface may take any appropriate form, for example dependent on the 9 device it may comprise one of the various interfaces expressly listed above. It will of course be understood that it is also not intended to limit the invention to any particular device 11 interface type, and as-yet undisclosed variants and equivalents will also therefore be within 12 the scope of the invention as defined by the claims. It will of course be understood that a 13 device interface may be chosen dependent on the device -for example it may comprise a 14 plug to be received in a corresponding proprietary or device/manufacturer specific socket on the device PCB. The plug might, for example, comprise an edge connector to be received in 16 a corresponding socket, or alternatively an edge connector of the device PCB might be 17 received in a socket which forms the device interface. The device interface might, further 18 alternatively, comprise an elastomeric connector. Other examples might include hanging 19 cables and/or surface-or through-mounted (SMT/THM) connectors.

21 In this embodiment the power connection module is secured to the rear casing using screws, 22 and an o-ring 176 provides a waterproof seal to prevent ingress of water. Further 23 waterproofing may be provided by filling around the components of the power connection 24 module within the housing using a silicone compound or an epoxy for example. Likewise, alternative means of securing the power connection modules are envisaged by the Applicant 26 and might include nuts and bolts, self-tapping screws, rivets, plastic or metal clips, threaded 27 connections, snap fits, friction or push fits, expansion fits, spring-loaded cartridge, shape 28 memory, locking mechanisms (for example twist-lock, keyed and combination mechanisms), 29 magnets, vacuum or suction fit, adhesives or ultrasonic welding, pressure fit or dissolvable (for example water or acid soluble polymer or compostable); the means of connection is 31 unimportant but it is preferred that it is easy for an end user to disconnect and replace for 32 reasons which follow. It will similarly be understood that it is not intended to limit the 33 invention to any particular securing or attachment means, and as-yet undisclosed variants 34 and equivalents will therefore be within the scope of the invention as defined by the claims.

1 Figure 2 (d) illustrates a lighting module 101D which does not comprise a power connection 2 module. However, internally the lighting module 101D is still provided with a socket on the 3 PCB which is capable of receiving a device interface of a power connection module. It is 4 envisaged that such a device might be provided with a rear casing which does not comprise any aperture (as shown), so as to avoid ingress of dust or water for example, and that this 6 casing might be swapped for a rear casing with an aperture if the user wishes to attach a 7 power connection module at a later date. Alternatively, such a device might instead be 8 provided with a removable blanking plate, in which case it might resemble the lighting 9 module 101C shown in Figure 2 (c), or a user might simply cut out an appropriately sized aperture when required. To this end the rear casing might comprise a guide, preferably 11 internally, or other feature for example a thinned or otherwise weakened outline to aid in 12 creation of a suitable aperture such as a push out portion.

14 It is envisaged that the lighting modules 101A, 101B and 101C can receive power from corresponding cables (e.g. a USB-C cable, DC power cable or magnetic charging cable, 16 respectively) which are connected to a secondary power source which may be a mains 17 supply (via a suitable adapter), power pack or external photovoltaic panel, or alternatively a 18 base module such as described below. For example, a USB-A to USB-C cable might 19 transfer power from a USB-A port on a base module, or a PC/laptop or USB wall charger, to lighting module 101A via charging interface 175A.

22 Alternatively, instead of providing a proprietary connection arrangement on a base module, 23 the base module (or other power source) might instead comprise a connector corresponding 24 to the particular power connection module of the lighting module with which it is intended to work. For example, the base module might comprise a USB-C connector to be received in 26 and transfer power (and optionally data) to lighting module 101A via power connection 27 module 171A, or a DC connector to be received in and transfer power to lighting module 28 101B via power connection module 171B, or a magnetic power connector to wirelessly 29 transfer power to lighting module 101C via power connection module 171C.

31 Further alternatively, as with the lighting modules 101, 101A, 101B and 101C, a base 32 module might in fact comprise a corresponding removeable power connection module, which 33 can be selected to cooperate with a particular lighting module and replaced in order to 34 cooperate with a different lighting module. Analogously, such a power connection module might comprise a housing, a charging interface, and a base interface. It is preferred that in 36 such arrangements the charging interface on the base is the male part of the interface 1 (which may be termed a plug) and that the charging interface on the lighting module is the 2 female part of the interface (which may be termed a jack) where appropriate, but the vice 3 versa is also envisaged (in other words, the male part of the interface might be provided on 4 the lighting module, or whichever electronic device embodies the invention).

6 In conventional devices, connectors are fixed to the main board, either hard mounted and 7 requiring PCB replacement, or floating and requiring extensive upgrade by a skilled 8 electronics professional to replace or repair them. By employing removeable power 9 connection modules as describe above, instead of fixed connectors, replacement can be made by anyone with basic tools and no specialist knowledge. In fact, using the "plug-and- 11 play" type connection to the PCB described above, replacement of a broken connector or 12 upgrade to a new type of connector could be undertaken by an end user themselves.

14 This also highlights another key advantage; in addition to enabling easy repair of broken or damaged connectors, it enables easy upgrade to newer or better interfaces thus providing a 16 degree of future-proofing (which might also extend to corresponding base modules, for 17 example). There are recycling and waste recovery advantages too by simple virtue of not 18 being permanently attached to the housing and/or the PCB.

In a particular use case, dual-charging solar lights could be provided to an off-grid 21 community with a specific connector module and certain charge protocol -e.g DC jack! 22 audio jack / coaxial -depending on their existing infrastructure. An ability to replace the 23 power connection module with a more contemporary connector (eg USB-C) at a later date 24 would future-proof those solar lights against obsolescence and help the devices work consistently with modern protocols on other devices.

27 Furthermore, in many off-grid markets, the distribution of users in hard to reach places 28 makes returns and replacement cost-prohibitive for users and/or manufacturers. By isolating 29 the most likely to break components from the rest of the product, agents can rapidly deploy fixes in the field without a costly take-back ecosystem. This in turn reduces waste and avoids 31 the need to replace full products. Also, as intimated above, there is no express need for 32 repair, maintenance or upgrading to be performed by someone with electronics skills.

34 It will be understood that while the removable (and replaceable) power connection modules have been discussed in the context of solar lighting modules, or lighting modules more 36 generally, the above advantages and applications will also be realised for other consumer 1 modules or electronic devices should they be provided with such removeable (and 2 replaceable) power connection modules. As such the power connection modules described 3 and envisaged herein are not limited to use in lighting modules, solar or otherwise, and as- 4 yet undisclosed variants and equivalents will therefore be within the scope of the invention as defined by the claims.

7 Examples of other electronic devices which might benefit from the inventive power 8 connection modules may include VVi-Fi routers or dongles (including mesh network devices), 9 mobile phones and cellular hotspots, laptop computers and tablets, speakers (for example Bluetooth speakers), radios, cameras, payment devices (such as contactless and/or card 11 readers), battery packs and similar devices, fans, medical, health and wellbeing devices 12 (such as blood sugar monitors, blood pressure monitors, thermometers, sleep monitors, sex 13 toys, toothbrushes, razors/shavers and scales) and wearables (such as fitness trackers, 14 heart and ECG monitors, prosthetics, AR and VR headsets and glasses), baby monitors and nightlights (including those with cameras), a fingerprint reader or a retina scanner, a barcode 16 reader (including OR and 3D barcode readers), electronic mosquito deterrents, USB power 17 hubs, water filters, water quality testers, light monitors, air quality sensors, motion sensors, 18 fire and smoke detectors, carbon monoxide sensors, occupancy sensors, 19 security/surveillance cameras (including thermal imaging cameras), alarms (including personal safety and home alarms), travel and sports equipment (such as bike lights), 21 handwarmers, headphones and GPS devices (including heads up displays). Larger 22 industrial or household devices (for example white goods) may also benefit, and may include 23 kitchen white goods, industrial electronics and electric vehicles (for example electric cars 24 and scooters). Electronic cigarettes and vaping devices may also be fitted with the inventive power connection modules.

27 In fact, it is envisaged that any product which employs connectors exposed to loading forces 28 (and therefore vulnerable to breakage) might benefit from the invention, or indeed any 29 product which might benefit from an ability to upgrade or change connector interface. For example, it may be beneficial for a user to have a common charging port across all devices 31 to avoid the need for multiple different adapters when travelling, without requiring that the 32 manufacturers of those devices provide multiple versions with different interfaces to 33 accommodate this. For example, the European market may naturally lean towards the USB- 34 C connector type, owing to its overlap with prevalent mobile phone choices. Meanwhile, in sub-Saharan Africa users more commonly use USB-A or DC connections to charge their 36 devices. The existing approach to production requires separate PCBs with surface-mount 1 connectors to be produced per market segment, as well as different casings with different 2 port cut-outs. The replaceable power connector is a modular component, meaning any 3 variance can exist at its module level alone. No update to the main PCB design or the 4 product casing is required to meet the needs of different market segments.

6 Figure 4 shows the connector of Figures 1 and 3 instead connected to a generic housing 7 which might be the housing of, or a part of the housing of, any electronic device including 8 those expressly listed above. Figure 4 (f) in particular (which is an exploded view) shows the 9 adaptation of the housing to receive the power connector module 271 by providing a recess which matches a faceplate of the power connector module and an aperture which allows the 11 device interface to extend through the housing. In this embodiment the power connector 12 module 271 is retained or connected to the housing by bolts which pass through respective 13 apertures in the faceplate and the housing and are received in corresponding nuts on an 14 inner surface of the housing. As intimated above, this specific means of securing the power connection module to the housing is not intended to be limiting and may be replaced with an 16 equivalent or variant, for example as expressly listed above.

18 There will now be described with reference to Figure 5 an embodiment of an aspect of the 19 invention, namely a solar power system which comprises a lighting module 301 and a base module 401 to which the lighting module 301 may be connected to receive (or transfer) 21 electrical power.

23 The lighting module 301 comprises a casing 303. The casing 303 comprises a front casing 24 portion 307 and a rear casing portion 309. In this embodiment the front casing portion 307 is transparent but frosted to diffuse light, however it could alternatively be translucent. In this 26 embodiment the front casing portion 307 and the rear casing portion 309 are screwed 27 together, but this example is non-limiting and other arrangements are envisaged. The 28 manner of attachment and/or construction of the lighting module 301 is, in this regard, 29 inconsequential. Internal to the casing 303 is a rechargeable battery (not visible), which stores energy received from the base module 401 (see below), and also powers a single, 31 surface mounted device (SMD) LED. A switch 323 is provided to enable a user to turn the 32 light source on and off.

34 The lighting module 301 comprises a base module interface 331 which is configured to cooperate with a corresponding lighting (or consumer) module interface 431 of the base 36 module 401. The base module interface 331 comprises a removable power connector 1 module 371, in accordance with an embodiment of the invention, which has a female USB-C 2 port 375 and, as described below, the lighting module interface 431 of the base module 401 3 comprises a removeable power connector module 471, in accordance with another 4 embodiment of the invention, which has a male USB-C jack 475. When the lighting module 301 is connected to the base module 401 the female USB-C port 375 of the base module 6 interface 331 receives the male USB-C jack 475 of the lighting module interface 431. This 7 interface allows power to be transferred from the base module 401 to the lighting module 8 301 (or any other kind of consumer module). Note this is a hardware interface, and may 9 interchangeably be referred to as a lighting module dock.

11 The interface or physical connection between the removable power connector modules 371, 12 471 alone may be sufficient to retain the lighting module 301 on the base module 401 when 13 connected (for example, using inherent grip or friction in the connector or magnetic force).

14 However, the lighting module 301 in this embodiment is (further) secured to the base module 401 by way of slots 329 which cooperates with and/or receive clips 429 on the base module.

16 Note that the base module 401 also comprises a recess 404 which is sized and shaped to 17 receive the lighting module 301. The clip 429, as well as the lighting module interface 431, 18 is located within the recess. In this example, the lighting module 301 is generally cuboid in 19 shape but with a forward skew such that the top overhangs the bottom of the lighting module 301. The rear of the recess 404 has a corresponding forward skew such that the overhang 21 is maintained when the lighting module 301 is secured to the base module 401.

23 Like the lighting module 301 described above, the base module 401 comprises a casing 403.

24 The casing 403 comprises a front casing portion 407 and a rear casing portion 409. In this embodiment the front casing portion 407 and the rear casing portion 409 held together by 26 clips, but other arrangements are likewise envisaged. Again, the manner of attachment 27 and/or construction of the base module 401 is, in this regard, inconsequential. Internal to the 28 casing 403 is a rechargeable battery (not visible), which provides power to the lighting 29 module 301 (or other consumer module or electronic device) connected to the base module 401. Note that the term consumer module is intended to cover any one of a vast variety of 31 consumer devices which may be connected to the base module 401 to receive power, a 32 lighting module being the preferred example of a consumer module in the case of a solar 33 power system. As such, where appropriate it will be understood that references to a lighting 34 module may be replaced mutatis mutandis with references to a consumer module in general or a different, specific consumer module such as those variants and equivalents expressly 36 listed above, or any other variant or equivalent.

2 As intimated above, the base module 401 comprises a lighting (or consumer) module 3 interface 431 which is configured to cooperate with a corresponding lighting module interface 4 331 of the lighting module 301. The lighting (or consumer) module interface 431 comprises a removeable power connector module 471 which has a male USB-C connector 475. When 6 the lighting module 301 is connected to the base module 401 the male USB-C connector 7 475 of the lighting module interface 431 is received in the female USB-C port 375 of the 8 base module interface 331. Power may then be transferred from the rechargeable battery of 9 the base module 401 to the lighting module 301, or indeed any other kind of consumer module so connected.

12 The base module 401 is provided with a recess 404 which, as noted above, is shaped to 13 receive the lighting module 301. In addition to enabling the lighting module 301 to be at 14 least partially housed and retained within the base module 401 when connected, the recess serves to protect the lighting (or consumer) module interface 431 when a lighting (or 16 consumer) module is not connected. This portion of the base module might be termed a 17 "charging dock". The recess 404 is substantially rectangular, to match the lighting module, 18 but can of course be of any shape. The clips 429, which engage the slots 329 in the lighting 19 module 301 and thereby retain it in the recess 404, have been described above, and are integrally formed in the casing 403. Other retaining means may be employed. The recess 21 404 may also have a cover (not shown) or comprise a sleeve or channel (also not shown) 22 which receives the lighting module.

24 It is also envisaged that the power connection module might itself comprise a power source, such as a rechargeable battery that can be powered from, and in turn power, the charging 26 interface. Such a power connection module could be used to connect or make "smart' an 27 otherwise passive device, or simply be used to supplement an on-board power source. In a 28 particular use case a power connection module comprising a power source might provide 29 emergency power or a power boost to an otherwise dead device.

31 Figures 6, 7 and 8 illustrate some non-limiting alternative examples of how a power 32 connection module 671, 771, 871 may connect to a PCB/motherboard 680, 880 (for 33 example) of a device (not shown). Each is shown in (a) a disconnected and (b) a connected 34 configuration. In the example shown in Figure 6, the power connection module 671 is connected to the PCB/motherboard 680 by virtue of a male connector 677 that is surface 36 mounted to a PCB of the power connection module 671 and a female connector 687 that is 1 surface mounted to the PCB/motherboard 680 of the device. In the example shown in 2 Figure 7, the power connection module 771 is connected to the PCB/motherboard (not 3 shown) by virtue of a male connector 777 that is surface mounted to a PCB of the power 4 connection module 771 and a female connector 787 that connected to the PCB/motherboard of the device by a hanging cable 788. This would, for example, allow the power connection 6 module to interface with a PCB which is positioned more remotely or deeply within the 7 device than a direct connection such as in Figure 6 would allow. The example shown in 8 Figure 8 is a variant of the Figure 7 example; in this case the power connection module 871 9 is connected to the PCB/motherboard 880 by virtue of a male connector 877 that is connected to the PCB of the power connection module 871 by a hanging cable 878 and a 11 female connector 887 that is surface mounted to the PCB/motherboard 880 of the device.

13 Although in the examples above the connectors are in some cases surface mounted to 14 PCBs, it is inconsequential how the connectors are mounted and might instead (for example) be through mounted for additional reliability. The location of the male and female connectors 16 might also be reversed such that the female connector is comprised in the power connection 17 module. It is envisaged that both male and female connectors may be connected to their 18 respective PCBs by hanging cables. As intimated above, it is also envisaged that the PCB 19 of the power connection module or of the device itself could comprise an edge connector to be received in a socket of the other. The connectors may be standard or may be 21 proprietary.

23 The invention provides a means by which consumer electronic devices, and particularly 24 power connectors which are a significant point of weakness and redundancy, can be repaired and/or upgraded with relative ease. In the examples described herein, a 26 removeable power connection module replaces (or is used instead of) a conventional 27 charging port which is often the first part of a consumer electronic device to fail, and in the 28 event of such failure the power connection module can be removed and replaced with an 29 identical or similar module, rather than requiring expert intervention to repair. The removeable power connection module also enables ease of upgrade to newer interface 31 types in that a power connection module comprising a first type of interface or port can be 32 removed and replaced with a power connection module comprising a second type of 33 interface or port, without requiring that the device itself be upgraded. While it is primarily 34 envisaged that the lighting module (or other consumer/electronic device) be provided with such a removeable power connection module, a base module might also be provided with a 36 similar module again to aid in repair and/or upgrade. The invention is not limited to solar 1 power system applications, and may find utility in any consumer electronic device which may 2 be beneficial to upgrade or repair without expert assistance.

4 As may be used herein, the terms bottom, back, lower, below and the like are descriptive of a feature that is located towards a first end/side of an apparatus, system or component while 6 the terms top, front, upper, above and the like are, respectively, descriptive of a feature that 7 is located towards a second, opposing end/side of the apparatus, system or component.

8 Such an apparatus, system or component may be inverted without altering the scope of 9 protection which, as below, is defined by the appended claims. For example, the front of the photovoltaic module may be that which bears the photovoltaic panel, however when 11 assembled the photovoltaic panel may be at the rear of the modular solar lighting system.

13 Throughout the specification, unless the context demands otherwise, the terms "comprise" or 14 "include", or variations such as "comprises" or "comprising", "includes" or "including" will be understood to imply the inclusion of a stated integer or group of integers, but not the 16 exclusion of any other integer or group of integers. Furthermore, unless the context clearly 17 demands otherwise, the term "or" will be interpreted as being inclusive not exclusive.

19 The foregoing description of the invention has been presented for the purposes of illustration and description and is not intended to be exhaustive or to limit the invention to the precise 21 form disclosed. The described embodiments were chosen and described in order to best 22 explain the principles of the invention and its practical application to thereby enable others 23 skilled in the art to best utilise the invention in various embodiments and with various 24 modifications as are suited to the particular use contemplated. Therefore, further modifications or improvements may be incorporated without departing from the scope of the 26 invention as defined by the appended claims.

Claims

1 Claims: 3 1. A power connection module comprising: 4 a housing for removeable insertion in an electronic device; a charging interface that provides a means to receive power from an external 6 power source; and 7 a device interface that provides a means to deliver power from the charging 8 interface to the electronic device.

2. The power connection module of claim 1, wherein the electronic device is a lighting 11 module.13

3. The power connection module of claim 2, wherein the lighting module comprises a 14 photovoltaic panel.16

4. The power connection module of claim 1, wherein the electronic device may be 17 selected from the group comprising Wi-Fi routers and dongles (including mesh 18 network devices), mobile phones and cellular hotspots, laptop computers and tablets, 19 speakers (for example Bluetooth speakers), radios, cameras, payment devices (such as contactless and/or card readers), battery packs and similar devices, fans, medical, 21 health and wellbeing devices (such as blood sugar monitors, blood pressure 22 monitors, thermometers, sleep monitors, sex toys, toothbrushes, razors/shavers and 23 scales) and wearables (such as fitness trackers, heart and ECG monitors, 24 prosthetics, AR and VR headsets and glasses), baby monitors and nightlights (including those with cameras), a fingerprint reader or a retina scanner, a barcode 26 reader (including OR and 3D barcode readers), electronic mosquito deterrents, USB 27 power hubs, water filters, water quality testers, light monitors, air quality sensors, 28 motion sensors, fire and smoke detectors, carbon monoxide sensors, occupancy 29 sensors, security/surveillance cameras (including thermal imaging cameras), alarms (including personal safety and home alarms), travel and sports equipment (such as 31 bike lights), handwarmers, headphones, GPS devices (including heads up displays), 32 electronic cigarettes and vaping devices.34

5. The power connection module of claim 1, wherein the electronic device is selected from the group comprising kitchen white goods, industrial electronics and electric 36 vehicles (for example electric cars and scooters).2

6. The power connection module of any preceding claim, wherein the charging interface 3 comprises a female port or jack.

7. The power connection module of any of claims 1 to 5, wherein the charging interface 6 comprises a male connector or plug.8

8. The power connection module of claim 6 or claim 7, wherein the charging interface 9 comprises a female port or jack or male connector or plug selected from the group of interface types comprising USB-A, USB-B, Mini-USB, Micro-USB, Audio Jacks, 11 Ethernet, 2-and 3-Pin Power, Pogo-Pin, Plate-to-plate, inductive charging interfaces 12 and proprietary/manufacturer-specific interfaces (such as Apple Lightning interfaces).14

9. The power connection module of any preceding claim, wherein the charging interface and the device interface also provide a means to transfer data to and from the 16 electronic device.18

10. The power connection module of any preceding claim, wherein the device interface is 19 configured to be received in a corresponding socket of the electronic device, preferably when the power connection module is inserted into the electronic device.22

11. The power connection module of claim 10, wherein the socket is located on a PCB of 23 the electronic device.

12. The power connection module of any preceding claim, wherein the device interface 26 comprises a male connector or plug.28

13. The power connection module of any of claims 1 to 11, wherein the charging 29 interface comprises a female port or jack.31

14. The power connection module of claim 12 or claim 13, wherein the female port or 32 jack or male connector or plug is selected from the group of interface types 33 comprising USB-A, USB-B, Mini-USB, Micro-USB, Audio Jacks, Ethernet, 2-and 3- 34 Pin Power, Pogo-Pin, Plate-to-plate, inductive charging interfaces and proprietary/manufacturer-specific interfaces (such as Apple Lightning interfaces).1

15. The power connection module of any of claims 1 to 11, wherein the device interface 2 comprises an edge connector or a socket configured to receive an edge connector.4

16. The power connection module of any of claims 1 to 11, wherein the device interface comprises an elastomeric connector.7

17. The power connection module of any preceding claim, wherein the power connection 8 module comprises securing means for securing the power connection module to the 9 electronic device.11

18. The power connection module of claim 17, wherein the securing means secures the 12 housing to a corresponding housing of the electronic device.14

19. The power connection module of claim 17 or claim 18, wherein the securing means is selected from the group comprising screws, nuts and bolts, self-tapping screws, 16 rivets, plastic or metal clips, threaded connections, snap fits, friction or push fits, 17 expansion fits, spring-loaded cartridge, shape memory, locking mechanisms (for 18 example twist-lock, keyed and combination mechanisms), magnets, vacuum or 19 suction fit, adhesives or ultrasonic welding, pressure fit or dissolvable (for example water or acid soluble polymer or compostable) connections.22

20. The power connection module of any preceding claim, wherein the power connection 23 module is replaceable with a like power connection module in the event of fault or 24 breakage 26

21. The power connection module of any preceding claim, wherein the power connection 27 module is replaceable with a power connection module comprising a different 28 charging interface.

22. The power connection module of any preceding claim, wherein the power connection 31 module is replaceable with a power connection module comprising a different device 32 interface.34

23. The power connection module of any preceding claim, wherein the power connection module is replaceable with a blanking plate.37

24. The power connection module of any preceding claim, wherein the power connection 38 module comprises a power source. 1.2

25. The power connection module of claim 24, wherein the device interface provides a 3 means to deliver power from the power source to the electronic device and/or the 4 charging interface provides a means to deliver power from the power source to an external device.7

26. A power connection module comprising: 8 a housing for remoyeable insertion in a power source device; 9 a charging interface that provides a means to deliver power from the power source device to an external electronic device; and 11 a device interface that provides a means to deliver power to the charging 12 interface from the power source device.14

27. An electronic device, the electronic device comprising a socket configured to receive a power connection module according to any preceding claim.17

28. The electronic device of claim 27, comprising a power connection module according 18 to any of claims 1 to 26, or a blanking plate.