System for inductive power provision in wet environments

• US 8,536,737 B2
• Filed: 12/01/2009
• Issued: 09/17/2013
• Est. Priority Date: 11/19/2007
• Status: Active Grant

• Current Assignee: Powermat Technologies, Ltd.
• Original Assignee: Powermat Technologies, Ltd.
• Inventors: Azancot, Yossi, Ben-Shalom, Amir, Greenwald, Oola, Rofe, Arik
• Primary Examiner(s): AMAYA, CARLOS DAVID
• Application Number:
  US12/628,525
• Publication Number:
  US 20100219693A1
• Time in Patent Office: 1,386 Days
• Field of Search: 307/104, 320/108
• US Class Current: 307/104
• CPC Class Codes: H02J 50/10 using inductive coupling
• CPC Class Codes: H02J 50/402 the two or more transmitting or the two or more receiving devices being integrated in the same unit, e.g. power mats with several coils or antennas with several sub-antennas
• CPC Class Codes: H02J 50/70 involving the reduction of electric, magnetic or electromagnetic leakage fields
• CPC Class Codes: H02J 50/80 involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
• CPC Class Codes: H02J 50/90 involving detection or optimisation of position, e.g. alignment

Abstract

Inductive power providing systems suitable for wet environments are disclosed. Water resistant inductive outlets include primary inductors incorporated into water resistant work-surfaces. Water resistant inductive power receivers include secondary inductors incorporated into water resistant casings. Secondary inductors are configured to couple with primary inductors thereby providing power to electrical loads connected thereto.

Claims

1. An inductive power receiver comprising at least one secondary inductor configured to inductively couple with at least one primary inductor and to provide power to at least one electric load, said receiver incorporated into a power adaptor further comprising at least one female power-jack socket electrically connected to said secondary inductor, said female power-jack socket configured to form a conductive coupling with a male pinned power plug connector.

2. The inductive power receiver of claim 1 wherein said secondary inductor is incorporated into a water resistant casing.

3. The inductive power receiver of claim 2 comprising at least one sucker configured to attach said casing to a work-surface.

4. The inductive power receiver of claim 1 further comprising a power storage unit configured to store energy received by said secondary inductor.

5. The inductive power receiver of claim 4 wherein said power storage unit is selected from a group consisting of:

capacitors, accumulators and electrochemical cells.

6. The inductive power receiver of claim 1 further comprising a boost circuit connected to said secondary inductor via a rectification unit.

7. The inductive power receiver of claim 6 wherein said boost circuit comprises a switching circuit configured to approximate the power profile of a mains power supply.

8. The inductive power receiver of claim 6 wherein said primary inductor is connected to a power supply having a single-phase power profile and said boost circuit is configured to provide a multiphase power profile.