Solar module with wireless power transfer

• US 9,947,807 B2
• Filed: 02/06/2014
• Issued: 04/17/2018
• Est. Priority Date: 02/06/2014
• Status: Active Grant

• Current Assignee: Taiwan Semiconductor Manufacturing Company Limited
• Original Assignee: Taiwan Semiconductor Manufacturing Company Limited
• Inventors: Cheng, Tzu-Huan
• Primary Examiner(s): Amrany, Adi
• Application Number:
  US14/173,841
• Publication Number:
  US 20150221785A1
• Time in Patent Office: 1,531 Days
• Field of Search: 307104
• CPC Class Codes: H01L 31/02021 for solar cells electrical connection means, e.g. junction boxes, specially adapted for structural association with photovoltaic modules H02S40/34
• CPC Class Codes: H02J 50/10 using inductive coupling
• CPC Class Codes: H02J 50/12 of the resonant type
• CPC Class Codes: H02J 7/35 with light sensitive cells
• CPC Class Codes: H04B 5/26 using coils
• CPC Class Codes: Y02E 10/50 Photovoltaic [PV] energy

Abstract

A solar module includes a solar panel and a wireless power transmission module coupled to the solar panel for transmitting power generated by the solar panel wirelessly.

Claims

1. A solar module comprising:

a solar panel, the solar panel comprising one or more solar cells formed as an integrated circuit structure having plurality of layers, the plurality of layers including a substrate, a conductive back contact layer formed directly on a bottom surface of the substrate and having conductive interconnects for the one or more solar cells formed therein, and an absorber layer formed over a top surface of the substrate, wherein the conductive back contact layer includes first and second contacts of the solar panel; and

a wireless power transmission module coupled to the solar panel for transmitting power generated by the solar panel, and provided at the first and second contacts, wirelessly,

wherein the wireless power transmission module comprises a wireless transmission coil formed within the conductive back contact layer of the integrated circuit structure and a transmitter integrated circuit chip bonded directly to the conductive back contact layer to electrically connect an output of the transmitter integrated circuit chip to the wireless transmission coil and an input of the transmitter integrated circuit chip to the first and second contacts of the solar panel, wherein power generated by the solar panel is coupled through the transmitter integrated circuit chip to the wireless transmission coil for wireless transmission.

2. The solar module of claim 1, wherein the wireless power transmission module is a RF wireless power transmission module.

3. The solar module of claim 2, wherein the RF wireless power transmission module comprises an RC circuit coupled to the wireless transmission coil.

4. The solar module of claim 1, wherein the wireless power transmission module is a magnetic resonance wireless power transmission module.

5. The solar module of claim 4, wherein the magnetic resonance wireless power transmission module comprises a magnetic resonance circuit.

6. The solar module of claim 1, wherein the coil is integrated into the solar panel during fabrication of the one or more solar cells, the coil being a feature cut into and defined from the back contact layer.

7. The solar module of claim 1, wherein the solar panel comprises one or more silicon solar cells.

8. The solar module of claim 1, wherein the solar panel comprises one or more thin film solar cells.

9. The solar module of claim 1, wherein the wireless power transmitter circuit comprises a transmitter integrated circuit chip bonded to the solar panel to make electrical contact with the wireless transmission coil and the first and second contacts.

10. A system comprising:

a pocket sized compact portable solar module comprising a solar panel and a wireless power transmitter electrically coupled to the solar panel for transmitting power generated by the solar panel wirelessly, wherein the solar panel comprises one or more solar cells formed as an integrated circuit structure having plurality of layers, the plurality of layers including a substrate, a conductive back contact layer formed directly on a bottom surface of the substrate and having conductive interconnects for the one or more solar cells formed therein, and an absorber layer formed over a top surface of the substrate, and wherein the wireless power transmitter comprises a wireless transmission coil formed within the conductive back contact layer of the integrated circuit structure; and

a mobile electronic device comprising a wireless power receiver and a wireless receiving coil integrated therewith configured for receiving power transmitted by the wireless power transmitter of the solar module,

wherein the conductive back contact layer includes first and second contacts of the solar panel,

wherein power generated by the solar panel is provided at the first and second contacts,

wherein the wireless power transmitter comprises a transmitter integrated circuit chip bonded directly to the conductive back contact layer to electrically connect an output of the transmitter integrated circuit chip to the wireless transmission coil and an input of the transmitter integrated circuit chip to the first and second contacts of the solar panel, wherein power generated by the solar panel is coupled through the transmitter integrated circuit chip to the wireless transmission coil for wireless transmission.

11. The system of claim 10, wherein the mobile electronic device is selected from the group consisting of a tablet computer device, cellular phone, notebook computer, e-book, and a portable gaming device.

12. The system of claim 10, wherein the wireless power transmitter and wireless power receiver are configured for transfer of power by RF.

13. The system of claim 10, wherein the wireless power transmitter and wireless power receiver are configured to transfer power by magnetic resonance.

14. The system of claim 10, wherein the coil is integrated into the solar panel during fabrication of the one or more solar cells, the coil being a feature cut into and defined from the back contact layer.

15. The system of claim 10, wherein the solar panel comprises one or more thin film solar cells.

16. A solar module comprising:

a solar panel comprising an integrated circuit structure comprising one or more chalcopyrite thin film solar cells, the solar panel having first and second contacts;

a RF or magnetic resonance wireless power transmitter circuit coupled to the solar panel for transmitting power generated by the one or more chalcopyrite thin film solar cells, and provided at the first and second contacts, wirelessly; and

a wireless transmission coil integrated into the solar panel and electrically coupled to the wireless power transmitter circuit,

wherein the integrated circuit structure has a plurality of layers, the plurality of layers including a substrate, a conductive back contact layer formed directly on a bottom surface of the substrate and having conductive interconnects for the one or more chalcopyrite thin film solar cells formed therein, and a chalcopyrite thin film absorber layer formed over a top surface of the substrate, and

wherein the wireless transmission coil is formed within the conductive back contact layer of the integrated circuit structure,

wherein the wireless power transmitter circuit includes a transmitter integrated circuit chip bonded directly to the conductive back contact layer to electrically connect an output of the transmitter integrated circuit chip to the wireless transmission coil and an input of the transmitter integrated circuit chip to first and second contacts of the solar panel, wherein power generated by the solar panel is coupled through the transmitter integrated circuit chip to the wireless transmission coil for wireless transmission.