Electromagnetic power supply battery cleaning robot

Abstract

A pool-related platform may include: one or more power consuming elements; and a wireless power transfer interface module comprising a ferromagnetic element located within a housing, the housing comprising a first housing part and a second housing part, the second housing part being secured to the first housing part.

Description

Technical Field

[0001] The present invention relates to systems and methods for providing submerged and non-submerged electromagnetic connections (EMC) to power cables or wires to power a tethered pool cleaning robot operating in a swimming pool. Background Art

[0002] As is well known, pool cleaning robots or pool robots are usually connected and powered by means of cables, which receive their power from an external power source located on the pool deck or at a distance from the edge of the pool. Such cables can sometimes reach lengths of up to 50 meters or more. For practical reasons, there is an increasing need to reduce the manpower required to clean the pool. For aesthetic reasons, there is also an increasing need to use cable-free pool robots that can be battery-operated. Other solutions propose cables or wires that are hidden or tucked away from view but are still tethered to power the pool cleaning robot.

[0003] In response to such market demands, development has focused on solutions such as onboard battery powered pool cleaner robots that can recharge the batteries. Another area of ​​development requires continued use of the cables, but in such a way that the cables are hidden or concealed from view.

[0004] Various electric products are used when submerged in a pool, tank or spa environment and typically, they need to be tethered to a power source to be able to function. For example: counter-current swimming equipment, pool lifts, spotlights, sirens, pumps, pool cleaning robots, etc.

[0005] One way to achieve this is to employ an underwater contactless EMC power connection, such as an inductive power supply system, which can be completely submerged underwater, or alternatively, located externally in a damp or wet area near the edge of the pool.

[0006] The simplest solution is to locate the mechanical galvanic power connector at the pool wall, however, this type of connector is prohibited for electrical safety reasons. Summary of the invention

[0007] The present invention may provide methods and systems for providing a contactless electromagnetic connection device that allows power transmission for use underwater or in highly humid environments. For simplicity, the primary first half-core coil winding module (or its subcomponent) may be referred to as a transmitter or Tx hereinafter; and the secondary half-core coil winding module (or its subcomponent) may be referred to as a receiver or Rx. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] The subject matter of the invention is particularly pointed out and distinctly claimed in the concluding portion of the specification. However, the invention as to its organization and method of operation, together with objects, features, and advantages thereof, may be best understood by reference to the following detailed description when read in conjunction with the accompanying drawings, in which:

[0009] Figure 1 illustrates an exploded view of an Rx according to an embodiment of the present invention;

[0010] Figure 2 illustrates a front view and a cross-sectional view of an Rx according to an embodiment of the present invention;

[0011] Figure 3 A cable line flotation device according to an embodiment of the present invention is illustrated;

[0012] Figure 4 illustrates an exploded view of an immersion embedded Tx according to an embodiment of the present invention;

[0013] Figure 5 illustrates a cross-sectional view of an immersed embedded Tx according to an embodiment of the present invention;

[0014] Figure 6 A caddy for transporting a pool cleaning robot according to an embodiment of the present invention is illustrated;

[0015] Figure 7 A power transformer and an exploded view thereof according to an embodiment of the present invention are illustrated;

[0016] Figure 8 An exploded view of an exterior decking embedded Tx is illustrated in accordance with an embodiment of the present invention;

[0017] Fig. 9 An exploded cross-sectional view of an exterior decking embedded Tx is illustrated in accordance with an embodiment of the present invention;

[0018] Fig.10 A pool cleaning robot and its cross section are illustrated;

[0019] Fig.11 Depicting covered and uncovered exterior manholes, patio floor embedded Tx in accordance with embodiments of the present invention;

[0020] Fig.12 and Fig.13 Depicts a terrace floor embedded Tx with an Rx arrangement in use;

[0021] Fig.14 illustrates a side view cross section of an Rx cable swivel device according to an embodiment of the present invention;

[0022] Fig.15Depicts an Rx cable securing and sealing mechanism on a pool cleaning robot according to an embodiment of the present invention;

[0023] Fig.16 A pool cleaning robot motor unit having a pump and a drive motor according to an embodiment of the present invention is illustrated;

[0024] Fig.17 illustrates a detailed exploded view of a submerged embedded in-wall Tx according to an embodiment of the present invention;

[0025] Fig.18 Depicts a wall-mounted embedded Tx according to an embodiment of the present invention, wherein the connected Rx in use are all immersed;

[0026] Fig.19 A cross section of an electrical wiring duct depicting the Rx cable;

[0027] Fig. 20 depicts a floating Rx according to an embodiment of the present invention;

[0028] Fig.21 An Rx for use on a wall according to an embodiment of the present invention is illustrated;

[0029] Fig. 22 A Tx for use on a wall according to an embodiment of the present invention is illustrated;

[0030] Fig.23 is an example of a block diagram of an IPC-TX unit;

[0031] Fig.24 is an example of a block diagram of an IPC-RX unit;

[0032] Fig.25 illustrates waveforms obtained at different distances between the RX and TX elements; and

[0033] Fig.26 Depicted is the PCR tethered cable routing with Rx.

[0034] It should be understood that for simplicity and clarity of illustration, the elements shown in the figures are not necessarily drawn to scale. For example, for clarity, the size of some elements may be enlarged relative to other elements. Further, where deemed appropriate, reference numerals may be repeated in the drawings to indicate corresponding or similar elements. DETAILED DESCRIPTION

[0035] In the following detailed description, many specific details are set forth in order to provide a thorough understanding of the present invention. However, it will be appreciated by those skilled in the art that the present invention can be practiced without these specific details. In other cases, well-known methods, processes and components are not described in detail to avoid obscuring the present invention.

[0036] The subject matter of the invention is particularly pointed out and distinctly claimed in the concluding portion of the specification. The invention, however, both as to its organization and method of operation, together with objects, features, and advantages thereof, may best be understood by reference to the following detailed description when read in connection with the accompanying drawings.

[0037] It should be understood that for simplicity and clarity of illustration, the elements shown in the figures are not necessarily drawn to scale. For example, for clarity, the size of some elements may be enlarged relative to other elements. Further, where deemed appropriate, reference numerals may be repeated in the drawings to indicate corresponding or similar elements.

[0038] Any reference to the system in the specification shall apply mutatis mutandis to methods that may be performed by the system. For example, a method for operating any one of the wireless power transfer interface modules and / or pool-related platforms described in the specification and / or claims may be provided. For example, a method for participating in (receiving and / or transmitting) power transfer using any one of the wireless power transfer interface modules and / or pool-related platforms described in the specification and / or claims may be provided.

[0039] Because the illustrated or depicted embodiments of the present invention can be implemented, for the most part, using electronic components and circuits known to those skilled in the art, in order to understand and appreciate the basic concepts of the present invention and in order not to obscure or distract from the teachings of the present invention, details will not be explained to a greater extent than is deemed necessary in the above illustrations.

[0040] Any reference to a method in the specification shall apply mutatis mutandis to a system capable of performing the method and shall apply mutatis mutandis to a non-transitory computer readable medium storing instructions which, once executed by a computer, result in the performance of the method.

[0041] Any reference in the specification to a system shall apply mutatis mutandis to a method capable of being performed by the system and shall apply mutatis mutandis to a non-transitory computer readable medium storing instructions which, once executed by a computer, result in the performance of the method.

[0042] The wireless power transfer interface module can be used to transfer power from one side (transmitter) to the other side (receiver). Power transfer can be from PCR to DSU and / or from DSU to PCR. Power transfer can include charging and / or power supply and / or communication. The roles of transmitter and receiver can change over time, or can be fixed. Any reference to charging and / or power supply can apply to communication mutatis mutandis.

[0043] A pool cleaning robot is provided that may include a contactless EMC connection module that may include an embedded Tx portion.

[0044] A contactless EMC connection module can be used to transmit power for use with an immersion pool cleaning robot.

[0045] The non-contact EMC can be fully submerged underwater or located in a wet area outside the pool near the pool edge.

[0046] The contactless module may include a Tx portion that may be embedded in an immersed wall or pool surface.

[0047] There can be three types of embedded Tx sections: a. In-wall embodiment, where the Tx is inserted, embedded and secured into a pre-built tunnel dug into the pool wall. Such a tunnel can be incorporated into a newly constructed pool by pre-design and construction, or can be incorporated into an existing pool, which may be converted or renovated, for example. b. On-wall embodiment, where the Tx uses existing, pre-dug tunnels that are used for other pool equipment, e.g., as water return jets from the main pool pump or as submerged wall mounted spotlights, etc. The Tx is embedded and replaces these equipment. c. On-deck embodiment, where the Tx is inserted, embedded and secured into a pre-built tunnel dug in the ground of a pool deck or in the exterior area surrounding a swimming pool.

[0048] The individual Tx parts can be connected by wires to a power supply which can be located at a distance from the pool. The length of such a cable connecting the Tx to the power supply can have a length of, for example, 3 meters, 10 meters, 20 meters, etc. The power supply is connected to the mains power supply of the building or construction housing the swimming pool and is capable of producing 100, 120, 180, 200...n Watts of power. The power supply regulates the mains voltage and power to a safe low DC voltage below 30V, so the Tx unit is continuously attached to the safe low DC voltage.

[0049] Each Tx part is constructed and configured to receive a matching Rx part, wherein their conductive surfaces mate and are tightly attached or connected to each other. Both include a substantially flat waterproof surface that ensures that no water, air or air bubbles, dirt can enter between the Tx and Rx flat surfaces when the two are engaged.

[0050] The conductive surface elements of both the Rx and Tx parts are made of a known ferrimagnetic material, such as manganese-zinc ferrite, which can be manufactured by companies such as Magnetics of Pittsburgh, Pennsylvania, USA.

[0051] In this specification, the ferrites used for Tx and Rx are molded or sintered using an alloy blend mixture suitable for use as the inductor material of the part. In another embodiment, the ferrite can be made of nickel-zinc ferrite. In yet another embodiment, the blend can include an additive of a polymer material such as styrene-butadiene rubber (SBR) or natural rubber (NR), which are thermoplastic elastomers that can provide additional mechanical properties to the inherent brittleness of the ferrite.

[0052] Because both the Tx and especially the Rx may be subject to mechanical shock in use around swimming pools when in use, handling or transport, additional protection measures can be applied by using internal seals and buffers to provide a better protective medium for the ferrites.

[0053] Additionally, after the coil windings are inserted and glued to the base of the ferrite, a silicone sealant is applied to the coils and their periphery to better resist vibrations or contact with the side walls of the ferrite when in motion.

[0054] Each Tx may include: a base; a primary coil that supplies voltage from the power source; an electronic switch that stabilizes and controls the supplied power; and a circuit that converts direct current (DC) from the power source into a high-frequency AC signal.

[0055] Each Rx may include: a base; and a secondary coil, which may generate a high-frequency AC current and voltage from a magnetic field and convert it back into a DC current and voltage.

[0056] The Rx can have its own flat surface that fits onto the Tx flat surface in the following manner: the submerged water is removed and the coil windings are configured to align so as to allow energy transfer via magnetic coupling between the Tx and Rx parts. A set of magnets inside the Rx or Tx ensures that the magnetic contact prevents the Rx from detaching and disconnecting from the Tx due to pull on the cable from the mobile pool cleaning robot; and keeps the two surfaces in contact while the coils are properly aligned.

[0057] Each primary or secondary coil winding may include multiple strands or strings of wires that provide optimal power. Each wire consists of 2, 3, 4, 5, 6...n strands, made of high purity and / or alloys of any of the following materials: brass / copper / silver / gold / aluminum or alloy mixtures of any of these.

[0058] The wires / strands have a resistance of 0.01, 0.02, 0.05...n ohm / meter respectively. The wires / strands may have a standard cross-section of 0.05, 0.10, 0.15...n mm.

[0059] The windings can be configured to rotate between 1, 5, 10, 20, 30...50...n turns, where the primary and secondary have equal number of turns, or the primary has more turns, or the secondary has more turns.

[0060] Wireless data transmission is provided between Rx and Tx for data sent from the pool cleaning robot to Rx and / or Tx, a power source and a user or users capable of receiving and sending wireless messages by means of a computerized device.

[0061] A primary and / or secondary coil winding temperature measurement device is provided.

[0062] Both the Tx and Rx may include a fast adaptive computer controlled switching mechanism that responds to the changing load consumption of the pool cleaning robot.

[0063] The focused electromagnetic beam provides tolerance of the distance between Tx and Rx; ie, flexible height adjustment.

[0064] The EMC system described in this specification provides low losses and high power efficiency consumption (examples: 50, 60, 70, 80, 100% power utilization).

[0065] The EMC system described in this specification provides a low voltage power pair.

[0066] The EMC systems described in this specification provide special means for protection from electromagnetic radiation (EMI shielding), which may include radiation blocking paint or foil shielding that blocks magnetic radiation and reduces the maximum overall SAR of the end user to below safe levels.

[0067] The EMC system described in this specification provides high frequency modulation which provides high efficiency and electrical safety (100-200Khz), so in case of a defective damaged casing the Tx power will not pose an electrocution risk to the end user.

[0068] The EMC system described in this specification provides automatic switching on by attaching an Rx to a Tx.

[0069] Underwater wireless control communications are provided by an additional antenna and transmitter / receiver for control signals at a different frequency (2MHz) to provide a two-way data transfer platform.

[0070] The Tx and / or Rx may include attachment to a magnet. The Tx may be mounted inside a niche on the side or wall of the pool or on an existing jet.

[0071] LED indicators indicate the status of Tx and / or Rx.

[0072] refer to Fig.17, which illustrates various components that may be used with certain types of pool covers (eg, PVC), while at least some of the parts (74, 75, or 65) may not be used with other types of pool covers (eg, concrete).

[0073] Additional features may include (not shown): a. The LED lighting arrangement that can be mounted on PCR, TX or / and RX is described in detail in the specification and / or drawings. b. Assembly and arrangement of on-water GPS positioning. c. Assemble the arrangement of pool condition sensors (temperature, water chemistry). d. Arrangement for onboard battery charging of pool cleaning robot. e. Arrangements for installing intruder pool alarm devices and systems. f. Arrangements for mounting underwater speakers. g. Arrangement for mounting a "master" beacon device for the pool cleaning robot to identify the location of the Tx and be able to navigate to such location.

[0074] Figure 1 is an example of an Rx that includes the following sequence (along the longitudinal axis of the Rx): an Rx front cover 10, an Rx inner seal 9, a combination of a magnet 8 held by an Rx magnet holder 7, an Rx electronics module 5, an Rx body 3 including an Rx nut or bumper (in a direction perpendicular to the longitudinal axis of the Rx), an Rx body bumper 2, and an Rx top cover 1. Cover screws 66 are used to secure the Rx front cover 10 to the Rx body 3.

[0075] The Rx electronic module 5 comprises the following sequence (along the longitudinal axis of Rx): an antenna PCB 51 for Rx / Tx wireless communication, an induction coil winding 52, a ferrite 53, an Rx heat sink 54 and a combination of an Rx PCB 55 and a thermal pad 56 located on a portion of the Rx PCB.

[0076] Figure 2 A front view of the Rx and a cross-sectional view of the Rx are illustrated, depicting the Rx nut bumper 4 which impact protects the PCR cable 6 and its connection at the inlet of the Rx module 100 as will be discussed further.

[0077] Figure 3 An example of an Rx cable floating module is illustrated, such as a floating cable buoy 80, which includes two halves 81 and 82 of a rotating shell and two floating parts 83 and 84 of a rotating buoy. The cable passes through recesses formed in the two floating parts. An exploded view of a rotating buoy 89 is also illustrated (see Fig.26 ).

[0078] Figure 4is an example of a Tx that includes the following sequence (along the longitudinal axis of the Tx): Tx top / front cover 22, Tx magnet holder 23 and magnet 24 combination, Tx inner seal 26, Tx electronic module 30, O-rings 61 and 62, Tx brass tube 27 and thermal pad 25 for the brass tube, O-rings 61 and 62, and Tx back / bottom cover 28 fastened to Tx top / front cover 22 by Tx screws 65. The figure also illustrates a Tx cable 400, sealed terminal connections 402, cable terminal pin connections 404, and nuts 403 for the terminals.

[0079] The Tx electronic module 30 includes the following sequence (along the longitudinal axis of Tx): an antenna PCB 51 for Rx / Tx wireless communication, an induction coil winding 52, a ferrite 53, a thermal pad 53 for Tx, an Rx heat sink 34, an aluminum heat sink 35 for Tx, and a Tx PCB 36 fastened to the aluminum heat sink 35 for Tx via screws 37.

[0080] Figure 5 400 is an example of a cross section of a Tx connected to a cable 400 including a nut 403 for a terminal, a sealed terminal connection 402 and a cabling connector 405.

[0081] Figure 6 is an example of a small vehicle for transporting PCR, which includes an Rx small vehicle seat 112.

[0082] Figure 7 is an example of an external power supply 300 , which includes a main body, a rear side wall 301 , a PCB 302 , a top front frame 303 , a panel 304 , a socket 306 , and a cable connector 307 .

[0083] Figure 8 and Fig. 9 An example of an in-floor Tx 125 located within a floor or niche, such as within an exterior patio floor niche near or beside a pool, is provided. Figure 8 The in-floor Tx is illustrated as comprising the following sequence (along the longitudinal axis of the in-floor Tx): a cover 40 for an in-floor Tx niche, an upper portion 41 for the Tx niche, an adapter 42 for the Tx niche, a flexible adapter 43 for the Tx, a Tx module 200 and a niche base 44 for the Tx niche.

[0084] The Tx module 200 includes the following sequence (along the longitudinal axis of the Tx in the floor): Tx top / front cover 22, Tx magnet holder 23 and magnet 24 combination, antenna PCB 51, induction coil winding 52, ferrite 53, thermal pad 25, Tx inner seal 26, Tx PCB 36, Tx brass tube 27, Tx back / bottom cover 28 fastened to the Tx top / front cover 22 by screws 65. A cable 400 with a cable plug for a power supply 401 is connected through the Tx back / bottom cover 28 and leads to a power supply that can be located away from an immediately adjacent pool area such as a pool pump engine room.

[0085] As Figure 8 Example of a cross-sectional view of a floor within Tx Fig. 9 The following figure marks are included: cover 40 for Tx niche in the floor, upper part 41 for Tx niche, adapter 42 for Tx niche, base 44 for Tx niche, adapter 45 for PG nut, PG nut 46 for base cable, PG nut RK ring seal 47, plastic washer 48, stopper 49 for base PG nut, seal 50 for base PG nut and floor gasket 441 for Tx niche.

[0086] Fig.10 is an example of a PCR 90, which includes a housing 191, a filter unit 192, brush wheels 193 and 193', a track 194, a fluid inlet 195, a fluid outlet 196 and 196', an interior space 197 defined by an inner housing and enclosing a motor unit and electronic devices, a power supply (not shown), and various other components. In addition to or in place of the above-mentioned parts, the PCR may include, for example, a pump motor, a drive motor, an impeller, any propulsion system, an electronic module of the PRC, and / or any other part of the PCR. Non-limiting examples of PCRs and their parts are provided in U.S. Patents 9410338, 10533335, 10843106, 10458139, 11124982, 10858852, 10982456, which are incorporated herein by reference.

[0087] Fig.11 An example of covered and uncovered in-floor Tx 125 installed in floor 91 is illustrated, with a tunnel 99 formed between the in-floor Tx 125 and the pool to receive the cable 6 of the PCR 90 in the pool 92 (see Fig.26 ). A cover 40 for an in-floor Tx niche is shown in the covered in-floor Tx 125, while an upper portion 41 for the Tx niche is shown in the uncovered in-floor Tx 125.

[0088] Fig.12 and Fig.13Examples of covered and uncovered in-floor Tx 125s installed in floor 91 are illustrated, with Rx module 100 attached or connected to in-floor Tx 125. Tunnel 99 is formed between in-floor Tx 125 and the pool to receive cables belonging to Rx module 100 (connected to in-floor Tx 125), which connect and provide power to PCR 90 in pool 92. A cover for in-floor Tx niche 40 is shown in the covered in-floor Tx 125, while Rx module 100 and cable 6 are shown in the uncovered in-floor Tx 125.

[0089] The cover for the in-floor Tx niche 40 includes special protection against electromagnetic radiation (EMI shielding). This protection may include radiation blocking paint or foil shielding that blocks magnetic radiation from coming into contact with swimmers or users of the pool to reduce the maximum overall specific absorption rate (SAR) for the end user to below a safe level;

[0090] Fig.14 An example of a swivel 110 is illustrated. An example of a swivel can be found in European patent EP 1383205, which is incorporated herein by reference. Fig.14 The swivel 110 is illustrated, which is importantly positioned near or close to the PCR (see Fig.26 ), so that cable tangles can be effectively released. The rotating mechanism is close to the Rx 100 (or Figure 4 and Figure 5 Any positioning of Tx and Tx 125) in the example above may render the swivel useless.

[0091] Fig.15 and Fig.16 The various parts of the PCR 90 are illustrated, such as the movable fluid nozzle 123, the downstream opening 126, the drive motor 121, the pump motor and electronics housing 122, the cable clamp holder 124 for holding the cable 6 (see Fig.26 ), the bent portion 125' of the cable 6 (see Fig.26 ), cable 6 is connected to the motor electrical nut closure connection 127. Cable 6 can be connected at its other end to Rx 100 (see Fig.26 ).

[0092] In order to protect the cable and its electrical connections from being pulled away from the motor unit 122 , the cable is assembled in such a way that it is bent and inserted into a cable clamping holder 124 in order to hold the cable, thereby presenting a bent portion 125 ′ of the cable 6 .

[0093] Fig.17An example of an in-wall Tx 129 is illustrated as including the following sequence (along the longitudinal axis of the in-wall Tx): Tx wall gasket 73, flange 74 for PVC niche, seal 75 for PVC niche, Tx module 200, flexible adapter 43 for Tx niche, and niche base 44 for Tx niche. The Tx wall gasket 73 is fastened to the niche base 44 for Tx niche by screws 65.

[0094] The in-wall 129 embodiment is used when the Tx is inserted, embedded and secured into a pre-built tunnel dug into the pool wall. Such a tunnel may be incorporated into a newly constructed pool by pre-design and construction, or may be incorporated into an existing pool that is, for example, being remodeled or refurbished.

[0095] Fig.18 An example of an in-wall Tx 129 installed in a pool wall is illustrated. Fig.18 In the upper part, the in-wall Tx 129 is not connected to the Rx module, and the Tx wall pad 73 and Tx module 200 are shown. Fig.18 In the lower portion, Tx module 200 is connected to in-wall Tx 129, and a portion of Tx wall gasket 73 is shown.

[0096] Fig.19 Examples of cross-sections of a four-wire cable 130 including wires 131 - 134 and a three-wire cable 130 ′ including wires 131 - 133 are illustrated.

[0097] Fig. 20 An example of an in-wall Tx 129 installed in a pool wall is illustrated. Fig.18 In the upper portion, the in-wall Tx 129 is not connected to the Tx module, and the Tx wall gasket 73 and Tx module 200 are shown. Fig. 20 The Rx 100 is also illustrated as including an additional floating medium to form 141 a floating unit 141 that can be fed via a cable and connected / attached to the in-wall Tx 200. The buoy is an additional option for the end user who may lose hold of the Rx when the Rx connection is released from the Tx, which will sink to the bottom of the pool. The buoy will keep the Rx afloat to facilitate holding it. The floating medium is configured by encapsulated polystyrene foam, sealed air compartments, or a combination of both. The additional buoy acts as an additional buffer impact shock absorber for the RX assembly.

[0098] Fig.21An example of a cable connected to a Tx module 200 is illustrated, followed again by a Tx flexible on-wall pad 72 and a Tx thick on-wall pad 71. This option is presented for an on-wall embodiment, whereby the Tx is configured to be installed using an existing, pre-dug tunnel or conduit that is or was used for other pool equipment or features, such as a water return jet line from a main pool pump or an immersion wall mounted spotlight, etc. The Tx is embedded and replaces these devices, and its cable 400 is attached to a power source located in the pool pump engine compartment or near the main power outlet.

[0099] Fig. 22 A wall mounted (pool wall 97) Tx module 200 and Tx thick wall gasket 71 are illustrated.

[0100] Fig.23 1 is an example of a Tx communication unit 150, comprising: a power input connector 151, which feeds an EMI filter 152, the output of which communicates with the input of a power amplifier 153; and an induction coil 154, which is fed by the power amplifier 153. The power input connector 151 also feeds a wire connector 155 for bidirectional wired communication with a microcontroller 159. The microcontroller 159 is configured to communicate with the WiFi module 149 and the Tx data transceiver 158 (bidirectional).

[0101] The EMI filter 152 also has an output that communicates with the input of a DC / DC low dropout (LDO) regulator 156, which feeds a microcontroller 159. A current sensor 157, which senses the current from the power amplifier 153, provides a measurement signal to the microcontroller 159. The microcontroller 159 also controls a human machine interface such as the RGB LED 148'.

[0102] Fig.24 1 is an example of an IPC Rx communication unit 160, which includes an induction coil 164 configured to feed a current sensor 167, a DC / DC low dropout (LDO) regulator 166 (which feeds a microcontroller 169), and a load switch 162 (controlled by the microcontroller 159) feeding a power output connector 161. The power input connector 161 also feeds a wire connector 165 for bidirectional wired communication with the microcontroller 169. The microcontroller 169 is configured to communicate with the WiFi module 162 and the Rx data transceiver 168 (bidirectional).

[0103] The EMI filter 152 also has an output in communication with an input of a DC / DC low dropout (LDO) regulator 166, which feeds a microcontroller 169. A current sensor 167, which senses the current from the power amplifier 163, provides a measurement signal to the microcontroller 169. The microcontroller 169 also controls a human machine interface such as an RGB LED 148'.

[0104] The following table illustrates examples of status indications transmitted by the RGB LED:

[0105] In the event of a system failure, it is important to indicate to the end user whether the failure is on the Tx or Rx side, as the Rx side can be easily analyzed or sent for repair. Repairing the Tx may require on-site repair at the pool; the LED indication can be used to report the location of the failure to the end user, as exemplified in the table above.

[0106] Safety mechanisms for swimming pools: low voltage / power, pairing and low voltage at 30V DC input To comply with pool safety regulations, this mechanism includes Rx proximity identification or presence to the Tx module. If the Rx module is not near the Tx, it enables operation at a low voltage power supply.

[0107] Operation modes can include: a. Before the end user attaches the detachable, removable and releasable Rx module unit to the wall mounted Tx, the Tx performs a second check to see if the Rx is anywhere nearby. b. In a first embodiment, the Tx searches for an energy pulse, and if an Rx is attached to the Tx, this will be enough to cause the Rx to "wake up" and communicate back to the Tx that the Rx is attached in the system. A constant and continuous flow of power from the Tx to the Rx follows. c. In a preferred embodiment, the Tx charges the capacitor to 12 volts a second time. After the capacitor is fully charged, this allows the energy stored in the capacitor to be released to the Tx coil winding module (or submodule) in a manner that produces oscillations. This oscillation is measured by means of a controller in the Tx module. If the oscillation decreases in a slow manner, it is interpreted that the Rx is not attached to the Tx. If the oscillation decreases in a fast manner, it is interpreted that the Rx is attached to the Tx. d. After the Tx has identified the presence of the Rx, there will be an indication from the end user confirming that there are no swimmers in the pool and that the end user wishes the pool cleaning robot to begin a cleaning cycle. This will cause the voltage supply to rise to high or full capacity (= / <30VDC).

[0108] Fig.25 is an example of the difference between Tx oscillations without Rx present (image 162) and Tx oscillations with Rx present (image 161).

[0109] exist Fig.26 In the embodiment, the PCR 90 is connected to the cable 6 having the swivel 110 and the Rx module 100 mounted on the cable supported by the rotating buoy 89 and the cable buoy 80 .

[0110] For perspective, it should be noted that the Rx 100 may have a size of approximately 15 cm wide / diameter. The Tx may have a size of up to 35 cm wide or diameter. Smaller or larger sizes are available depending on the inductive power required to power a larger PCR.

[0111] A pool-related platform may be provided. A wireless power transfer interface module may be provided. The pool-related platform may include one or more power consuming elements (e.g., a pump motor, a drive motor, one or more sensors, electronic circuits, a controller, a processor, a communication unit, etc.) and a wireless power transfer interface module, the wireless power transfer interface module including a ferromagnetic element located within a housing, the housing may include parts such as a first housing part and a second housing part, the second housing part being fixed to the first housing part.

[0112] A PRP may be any platform that can perform operations related to cleaning, changing chemistry, monitoring, etc. of a pool fluid. Examples of PRPs include pool robots other than PCRs, PCRs, float units, skimmers, etc. Any examples involving PCRs may apply mutatis mutandis to any other PRP.

[0113] The wireless power transfer interface module may be included in the PRP, in the pool wall, in the pool bottom, in the floor near the pool, etc.

[0114] The wireless power transfer interface module may include an adapter for attaching and / or anchoring the wireless power transfer interface module to its surroundings.

[0115] Wireless power transfer requires a receiving wireless power transfer interface module and a transmitting wireless power transfer interface module. The roles of the receiving wireless power transfer interface module and the transmitting wireless power transfer interface module may change over time.

[0116] The power transfer interface module is configured to participate in power transfer with another wireless power transfer interface module. The power transfer may be performed for charging and / or power supply and / or communication.

[0117] The wireless power transmission interface module may be an independent wireless power transmission interface module that may be installed in a wall, in a floor, or may be a part of a device such as a PRP and may perform power transmission with another wireless power transmission interface module.

[0118] The other wireless power transmission interface module may be different from the independent wireless power transmission interface module or may belong to another device.

[0119] The ferromagnetic element may be a ferromagnetic plate, or may have another shape.

[0120] The wireless power transfer interface module is configured to participate in power transfer only when one or more safety conditions are met. One or more safety conditions may be met when the distance between the wireless power transfer interface module and another wireless power transfer interface module is below a distance threshold (e.g., 0.1 to 3 cm or more).

[0121] At least one parameter of the power transfer is responsive to one or more safety conditions. The parameter in the at least one parameter may be power, energy, current and voltage.

[0122] The wireless power transmission interface module may be configured to participate in power transmission after receiving a predetermined signal from another wireless power transmission interface module.

[0123] At least Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 8 , Fig. 9 and Fig.17 Detailed examples of wireless power transfer interface modules are provided. Examples of wireless power transfer interface modules and floor or pool wall devices are provided in Fig.11 , Fig.12 , Fig.18 and Fig. 22 Example in. Fig. 20 Examples of wireless power transfer interface modules and floating units are provided in .

[0124] refer to Figure 1 , the housing parts are the Rx body 3 and the Rx front cover 10. Figure 4 , the housing parts are Tx top / front cover 22 and Tx back / bottom cover 28. Figure 8 , the housing parts are an adapter 42 for the Tx niche and a base 44 for the Tx niche. Fig.17 , the housing parts are the Tx wall liner 73 and the base 44 for the Tx niche.

[0125] Figure 1 , Figure 2 , Figure 8 , Fig. 9 and Fig.17Examples of other components of the wireless power transfer interface module are illustrated, such as (i) a seal; (ii) a magnetic attachment unit (such as a magnet holder) configured to magnetically attach the wireless power transfer interface to another wireless power transfer interface module at least during a power transfer period, the magnetic attachment unit being positioned between the seal and a ferromagnetic element (such as a ferrite 53); (iii) a buffer mechanically coupled to a second housing part, a top cover mechanically coupled to the buffer; (iv) an electronic module (e.g., an Rx electronic module 5 and / or a Tx electronic module 30) located within the housing and including a ferromagnetic element, an antenna, a coil winding, a heat sink, and a printed circuit board (e.g., an antenna PCB 51, a coil winding 52, a ferrite 53, an Rx heat sink 54 and an Rx PCB 55, a thermal pad 53 for Tx, a Tx heat sink 34, an aluminum heat sink 35 for Tx, and a Tx PCB 36).

[0126] The coil windings may be glued to the ferromagnetic element.

[0127] The antenna may belong to a communication unit configured to exchange information with another communication unit through a plurality of channels.

[0128] Wireless power transfer interface module electromagnetic shielding elements - such as EMI filters and / or brass tubes.

[0129] It is also provided that the components, in particular the RX and TX ( Figure 1 and Figure 4 ) can be relatively miniaturized so their subcomponents can be produced in smaller sizes. As mentioned above, if the power requirements are low or lower, then the induction coils can be smaller and more economical. The purpose of this size reduction is that the TX and RX can be configured to fit into a rechargeable battery for a pool-related platform to power, for example, a pool cleaning robot with an onboard removable and detachable battery (not shown).

[0130] The removable battery or batteries may include a TX component to transfer or transmit stored power and data from the battery to an RX component, which contacts the TX to transfer power and / or data to a central controller, such as an electronic PCB control center, which may be located in a pool-related platform, which may also include a motor within the waterproof unit.

[0131] The control center can transmit data from the RX to the battery assembly, and for the purpose of data transmission, the battery assembly acts as a TX assembly.

[0132] The relative miniaturization of the TX and / or RX (from the dimensions of 15 / 35 cm width or diameter) may be suitable for housing even smaller electronic additions, such as sensors. The dimensions of these sensors, which may be square, circular or oval, may start from ~1 cm up to ~7.5 cm. There are many sensors in the art, but in this specification, it is meant to attach the sensor to the surface of the pool-related platform and to be able to detach or remove the sensor from the surface of the pool-related platform.

[0133] The TX and / or RX of the sensor are contacted and bidirectional data transmission (back and forth) is performed so that wireless data and power transfer can occur.

[0134] For example, an attached optical device can use the power it receives to receive instructions (commands) on its RX from an onboard TX to be activated in order to take a picture or video of its surroundings. The data can be sent back from the TX to the RX for storage and further processing.

[0135] In the foregoing specification, the invention has been described with reference to specific examples of embodiments of the invention. It will, however, be evident that various modifications and changes may be made thereto without departing from the broader spirit and scope of the invention as set forth in the appended claims.

[0136] Furthermore, if any, the terms "front", "rear", "top", "bottom", "above", "below", etc. in the specification and claims are used for descriptive purposes and not necessarily for describing permanent relative positions. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the invention described herein are, for example, capable of operation in orientations other than those illustrated or otherwise described herein.

[0137] Those skilled in the art will recognize that the boundaries between logic blocks are merely illustrative, and that alternative embodiments may merge logic blocks or circuit elements, or impose alternative functional decompositions on various logic blocks or circuit elements. Thus, it should be understood that the architectures depicted herein are merely exemplary, and that many other architectures may be implemented that achieve the same functionality.

[0138] Any arrangement of components that achieve the same functionality is effectively "associated" so that the desired functionality is achieved. Thus, any two components combined herein to achieve a particular functionality may be considered "associated" with each other so that the desired functionality is achieved, regardless of architecture or intermediate components. Likewise, any two components so associated may also be considered "operably connected" or "operably coupled" to each other so as to achieve the desired functionality.

[0139] In addition, those skilled in the art will recognize that the boundaries between the above operations are merely illustrative. Multiple operations may be combined into a single operation, a single operation may be distributed in additional operations, and operations may be performed at least partially overlapping in time. Moreover, alternative embodiments may include multiple instances of a particular operation, and the order of the operations may be changed in various other embodiments.

[0140] For another example, in one embodiment, the illustrated examples may be implemented as circuits located on a single integrated circuit or within the same device. Alternatively, these examples may be implemented as any number of separate integrated circuits or separate devices interconnected with each other in a suitable manner.

[0141] As another example, the examples or portions thereof may be implemented as physical circuits or soft or code representations of logical representations convertible into physical circuits, such as in any appropriate type of hardware description language.

[0142] Moreover, the present invention is not limited to physical devices or units implemented in non-programmable hardware, but can also be applied to programmable devices or units that can perform the desired device functions by operating according to appropriate program codes, such as mainframes, microcomputers, servers, workstations, personal computers, notebooks, personal digital assistants, electronic games, automobiles and other embedded systems, cellular phones and various other wireless devices, generally referred to as "computer systems" in this application.

[0143] However, other modifications, changes, and substitutions are possible. Accordingly, the specification and drawings are to be regarded in an illustrative rather than a restrictive sense.

[0144] In the claims, any reference numerals placed in brackets shall not be interpreted as limiting the claims. The word "comprising" does not exclude the presence of other elements or steps than those listed in the claims. In addition, the terms "a" or "an" as used herein are defined as one or more than one. Moreover, the use of introductory phrases such as "at least one" and "one or more" in the claims should not be interpreted as implying that any particular claim containing the guided claim element is limited to a utility model containing only one such element by the indefinite article "a" or "an" to guide another claim element, even when the same claim includes the introductory phrase "one or more" or "at least one" and an indefinite article such as "a" or "an". The same applies to the use of definite articles. Unless otherwise specified, terms such as "first" and "second" are used for any distinction between the elements described by these terms. Therefore, these terms are not necessarily intended to indicate the time or other priorities of these elements, and the fact that specific measures are recorded in different claims does not indicate that the combination of these measures cannot be used advantageously.

[0145] Any system, device or apparatus referred to in this patent application includes at least one hardware component.

[0146] Any reference to "comprising" shall apply mutatis mutandis to "consisting of" and / or "consisting essentially of".

[0147] Although certain features of the present invention have been illustrated and described herein, many modifications, substitutions, changes and equivalents will now occur to those skilled in the art. It is therefore to be understood that the appended claims are intended to cover all such modifications and changes that fall within the true spirit of the invention.

Claims

1. A pool-related platform, comprising: one or more power consuming elements; as well as A wireless power transfer interface module comprises a ferromagnetic element located in a housing, wherein the housing comprises a first housing part and a second housing part, wherein the second housing part is fixed to the first housing part.

2. A pool-related platform according to claim 1, comprising a seal for sealing the housing. 3 . The pool-related platform according to claim 2 , comprising a magnetic attachment unit configured to magnetically attach the wireless power transfer interface to another wireless power transfer interface module at least during a power transfer period.

4. The pool-related platform according to claim 3, wherein: The magnetic attachment unit is positioned between the seal and the ferromagnetic element.

5. The pool-related platform of claim 2, comprising a bumper mechanically coupled to the second housing part.

6. A pool-related platform according to claim 5, including a top cover mechanically coupled to the bumper.

7. The pool-related platform of claim 1, comprising an electronics module located within the housing and comprising the ferromagnetic element, antenna, coil winding, heat sink and receiving printed circuit board.

8. A pool-related platform according to claim 7, wherein: The coil windings are glued to the ferromagnetic element.

9. The pool-related platform of claim 7, wherein: The antenna belongs to a communication unit configured to exchange information with another communication unit not belonging to the pool-associated platform through a plurality of channels.

10. The pool-related platform of claim 9, wherein: The another communication unit belongs to a device including another wireless power transmission interface module.

11. The pool-related platform of claim 1, wherein: The ferromagnetic element is a ferromagnetic plate.

12. The pool-related platform of claim 1, comprising an electromagnetic shielding element.

13. The pool-related platform of claim 1, wherein: The wireless power transfer interface module is configured to participate in power transfer with another wireless power transfer interface module that does not belong to the pool-associated platform.

14. A pool-related platform according to claim 13, wherein: The wireless power transfer interface module is configured to participate in the power transfer only when one or more safety conditions are met.

15. A pool-related platform according to claim 14, wherein: When the distance between the wireless power transmission interface module and the another wireless power transmission interface module is lower than a distance threshold, one of the one or more safety conditions is satisfied.

16. The pool-related platform of claim 13, wherein: At least one parameter of the power transfer is responsive to one or more safety conditions.

17. A pool-related platform according to claim 16, wherein: One of the at least one parameter is voltage.

18. The pool-related platform of claim 16, wherein: The wireless power transmission interface module is configured to participate in the power transmission after receiving a predetermined signal from the other wireless power transmission interface module.

19. The pool-related platform of claim 1, wherein: The pool-related platform is a robot.

20. The pool-related platform of claim 1, wherein: The pool-associated platform is a floating unit.

21. A wireless power transmission interface module, comprising: a housing comprising a first housing part and a second housing part, wherein the second housing part is fixed to the first housing part; and A ferromagnetic element is located in the housing. 22 . The wireless power transmission interface module of claim 21 , comprising a magnetic attachment unit configured to magnetically attach the wireless power transmission interface to another wireless power transmission interface module at least during a power transmission period.

23. The wireless power transmission interface module according to claim 23, wherein: The magnetic attachment unit is positioned between the seal and the ferromagnetic element.

24. The wireless power transfer interface module of claim 22, comprising a bumper mechanically coupled to the second housing part.

25. The wireless power transfer interface module of claim 25, comprising a top cover mechanically coupled to the buffer.

26. The wireless power transfer interface module of claim 21, comprising an electronic module located within the housing and comprising the ferromagnetic element, antenna, coil winding, heat sink and receiving printed circuit board.

27. The wireless power transmission interface module according to claim 27, wherein: The coil windings are glued to the ferromagnetic element.

28. The wireless power transmission interface module according to claim 27, wherein: The antenna belongs to a communication unit configured to exchange information with another communication unit not belonging to the pool-associated platform through a plurality of channels.

29. The wireless power transmission interface module according to claim 29, wherein: The another communication unit belongs to a device including another wireless power transmission interface module.

30. The wireless power transmission interface module according to claim 21, wherein: The ferromagnetic element is a ferromagnetic plate.

31. The wireless power transfer interface module of claim 21, comprising an electromagnetic shielding element.

32. The wireless power transmission interface module according to claim 21, wherein: The wireless power transmission interface module is configured to participate in power transmission with another wireless power transmission interface module that does not belong to the wireless power transmission interface module.

33. The wireless power transmission interface module according to claim 33, wherein: The wireless power transfer interface module is configured to participate in the power transfer only when one or more safety conditions are met.

34. The wireless power transmission interface module according to claim 34, wherein: When the distance between the wireless power transmission interface module and the another wireless power transmission interface module is lower than a distance threshold, one of the one or more safety conditions is satisfied.

35. The wireless power transmission interface module according to claim 33, wherein: At least one parameter of the power transfer is responsive to one or more safety conditions.

36. The wireless power transmission interface module according to claim 36, wherein: One of the at least one parameter is voltage.

37. The wireless power transmission interface module according to claim 36, wherein: The wireless power transmission interface module is configured to participate in the power transmission after receiving a predetermined signal from the other wireless power transmission interface module.

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