Electrical interconnects for photovoltaic modules and methods thereof
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H02N-006/00
H01L-031/042
H01L-031/02
H01L-031/048
H02S-040/36
출원번호
US-0195562
(2011-08-01)
등록번호
US-9343592
(2016-05-17)
발명자
/ 주소
Hunt, Thomas Peter
출원인 / 주소
Alion Energy, Inc.
대리인 / 주소
Jones Day
인용정보
피인용 횟수 :
3인용 특허 :
73
초록▼
System and method for interconnecting photovoltaic modules. The system includes a first photovoltaic module and a second photovoltaic module. The first photovoltaic module includes a first bus bar and a first interconnect tab connected to the first bus bar. The second photovoltaic module includes a
System and method for interconnecting photovoltaic modules. The system includes a first photovoltaic module and a second photovoltaic module. The first photovoltaic module includes a first bus bar and a first interconnect tab connected to the first bus bar. The second photovoltaic module includes a second bus bar and a second interconnect tab connected to the second bus bar. The system for interconnecting photovoltaic modules additionally includes a module interconnector configured to interconnect the first and the second photovoltaic modules. The module interconnector includes an interconnection component and an interconnection protector. Additionally, the system for interconnecting photovoltaic modules includes a first connection component connecting the interconnection component to the first interconnect tab of the first photovoltaic module and a second connection component connecting the interconnection component to the second interconnect tab of the second photovoltaic module.
대표청구항▼
1. A system, comprising: a first photovoltaic module including front and back surfaces and a plurality of edge surfaces, a first bus bar, and a first interconnect tab connected to the first bus bar, the first interconnect tab comprising a first conductor protruding through and extending beyond at le
1. A system, comprising: a first photovoltaic module including front and back surfaces and a plurality of edge surfaces, a first bus bar, and a first interconnect tab connected to the first bus bar, the first interconnect tab comprising a first conductor protruding through and extending beyond at least one of the edge surfaces of the first photovoltaic module and extending beyond both the front surface and the back surface of the first photovoltaic module, the first photovoltaic module configured to generate electricity responsive to sunlight irradiating the front surface or the back surface, or both of the front and back surfaces, of the first photovoltaic module;a second photovoltaic module including front and back surfaces and a plurality of edge surfaces, a second bus bar, and a second interconnect tab connected to the second bus bar, the second interconnect tab comprising a second conductor protruding through and extending beyond at least one of the edge surfaces of the second photovoltaic module and extending beyond both the front surface and the back surface of the second photovoltaic module, the second photovoltaic module configured to generate electricity responsive to sunlight irradiating the front surface or the back surface, or both of the front and back surfaces, of the second photovoltaic module;a third conductor comprising an elongated body defining first and second ends, the first end being in electrical contact with the first conductor, the second end being in electrical contact with the second conductor; anda singular-bodied interconnection protector that completely encloses each of the third conductor, the first conductor, the second conductor, the electrical contact between the first end and the first conductor, the electrical contact between the second end and the second conductor, an exterior region of the front surface of the first photovoltaic module, an exterior region of the back surface of the first photovoltaic module, an exterior region of at least one of the edge surfaces of the first photovoltaic module, an exterior region of the front surface of the second photovoltaic module, an exterior region of the back surface of the second photovoltaic module, and an exterior region of the at least one of the edge surfaces of the second photovoltaic module; andone or more potting materials that fill a volume inside the singular-bodied interconnection protector that is not occupied by the third conductor, the first conductor, the second conductor, the electrical contact between the first end and the first conductor, the electrical contact between the second end and the second conductor, the exterior region of the front surface of the first photovoltaic module, the exterior region of the back surface of the first photovoltaic module, the exterior region of the at least one of the edge surfaces of the first photovoltaic module, the exterior region of the front surface of the second photovoltaic module, the exterior region of the back surface of the second photovoltaic module, and the exterior region of the at least one of the edge surfaces of the second photovoltaic module. 2. The system of claim 1 wherein the first photovoltaic module includes one selected from a group consisting of silicon, cadmium telluride, CIGS, and organics. 3. The system of claim 1 wherein: the first photovoltaic module further includes an array of photovoltaic cells, the array of photovoltaic cells including a positive end and a negative end; andthe first bus bar is coupled to either the positive end or the negative end. 4. The system of claim 1 wherein the first interconnect tab is a portion of the first bus bar. 5. The system of claim 1 wherein the first interconnect tab is a separate conductor from the first bus bar. 6. The system of claim 1 wherein the first interconnect tab protrudes through and extends beyond the at least one of the edge surfaces of the first photovoltaic module in parallel with the first bus bar. 7. The system of claim 1 wherein the first interconnect tab protrudes through and extends beyond the at least one of the edge surfaces of the first photovoltaic module at an angle to the first bus bar. 8. The system of claim 1 wherein the first interconnect tab is coated at least partially by a protective film. 9. The system of claim 1 wherein the first photovoltaic module further includes: an encapsulating material sealing the edge surfaces of the first photovoltaic module, the first interconnect tab protruding through and extending beyond the encapsulating material. 10. The system of claim 1 wherein: a portion of the first interconnect tab extends to the front surface or the back surface of the first photovoltaic module. 11. The system of claim 1 wherein the potting materials comprises a polymer. 12. The system of claim 1 wherein the elongated body is flexible. 13. The system of claim 1 wherein the first end is coupled to the first interconnect tab using crimping, soldering, welding, or ultrasonic welding. 14. The system of claim 1, further comprising: a first connection component connecting the third conductor to the first interconnect tab of the first photovoltaic module; anda second connection component connecting the third conductor to the second interconnect tab of the second photovoltaic module. 15. The system of claim 14 wherein the first connection component, the second connection component, and the third conductor include the same metal as one another. 16. The system of claim 14 wherein the one or more potting materials provide electrical and environmental protection to the elongated body, the first conductor, and the second conductor. 17. The system of claim 1, wherein the first and second conductors each are flat. 18. The system of claim 1, wherein the elongated body of the third conductor is continuous between the first and second ends. 19. A method for installing photovoltaic modules, comprising: providing a first photovoltaic module including front and back surfaces and a plurality of edge surfaces, a first bus bar, and a first interconnect tab connected to the first bus bar, the first interconnect tab comprising a first conductor protruding through and extending beyond at least one of the edge surfaces of the first photovoltaic module and extending beyond both the front surface and the back surface of the first photovoltaic module, the first photovoltaic module configured to generate electricity responsive to sunlight irradiating the front surface or the back surface, or both of the front and back surfaces, of the first photovoltaic module;providing a second photovoltaic module including front and back surfaces and a plurality of edge surfaces, a second bus bar, and a second interconnect tab connected to the second bus bar, the second interconnect tab comprising a second conductor protruding through and extending beyond at least one of the edge surfaces of the second photovoltaic module and extending beyond both the front surface and the back surface of the second photovoltaic module, the second photovoltaic module configured to generate electricity responsive to sunlight irradiating the front surface or the back surface, or both of the front and back surfaces, of the second photovoltaic module;interconnecting the first photovoltaic module and the second photovoltaic module with a third conductor comprising an elongated body defining first and second ends, the first end being in electrical contact with the first conductor, the second end being in electrical contact with the second conductor;completely enclosing, with a singular-bodied interconnection protector, each of the third conductor, the first conductor, the second conductor, the electrical contact between the first end and the first conductor, the electrical contact between the second end and the second conductor, an exterior region of the front surface of the first photovoltaic module, an exterior region of the back surface of the first photovoltaic module, an exterior region of the at least one of the edge surfaces of the first photovoltaic module, an exterior region of the front surface of the second photovoltaic module, an exterior region of the back surface of the second photovoltaic module, and an exterior region of the at least one of the edge surfaces of the second photovoltaic module;filling, with one or more potting materials, a volume inside the singular-bodied interconnection protector that is not occupied by the third conductor, the first conductor, the second interconnect tab, the electrical contact between the first end and the first conductor, the electrical contact between the second end and the second conductor, the exterior region of the front surface of the first photovoltaic module, the exterior region of the back surface of the first photovoltaic module, the exterior region of the at least one of the edge surfaces of the first photovoltaic module, the exterior region of the front surface of the second photovoltaic module, the exterior region of the back surface of the second photovoltaic module, and the exterior region of the at least one of the edge surfaces of the second photovoltaic module;packing, for shipping, at least the interconnected first photovoltaic module and the second photovoltaic module, the first photovoltaic module and the second photovoltaic module being interconnected to each other via the third conductor, the singular-bodied interconnection protector, and the one or more potting materials;shipping, to an installation site, at least the packed first photovoltaic module and second photovoltaic module, the first photovoltaic module and the second photovoltaic module being interconnected to each other via the third conductor, the singular-bodied interconnection protector, and the one or more potting materials; andinstalling, at the installation site, at least the shipped first photovoltaic module and the second photovoltaic module being interconnected to each other via the third conductor, the singular-bodied interconnection protector, and the one or more potting materials. 20. The method of claim 19 wherein the first photovoltaic module includes one selected from a group consisting of silicon, cadmium telluride, CIGS, and organics. 21. The method of claim 19 wherein the process for packing, for shipping, at least the first photovoltaic module and the second photovoltaic module includes stacking the first photovoltaic module and the second photovoltaic module either front-to-back or back-to-front by folding the third conductor and the singular-bodied interconnection protector. 22. A method for installing photovoltaic modules, comprising: providing a first photovoltaic module including front and back surfaces and a plurality of edge surfaces, a first bus bar, and a first interconnect tab connected to the first bus bar, the first interconnect tab comprising a first conductor protruding through and extending beyond at least one of the edge surfaces of the first photovoltaic module and extending beyond both the front surface and the back surface of the first photovoltaic module, the first photovoltaic module configured to generate electricity responsive to sunlight irradiating the front surface or the back surface, or both of the front and back surfaces, of the first photovoltaic module;providing a second photovoltaic module including front and back surfaces and a plurality of edge surfaces, a second bus bar, and a second interconnect tab connected to the second bus bar, the second interconnect tab comprising a second conductor protruding through and extending beyond at least one of the edge surfaces of the second photovoltaic module and extending beyond both the front surface and the back surface of the second photovoltaic module, the second photovoltaic module configured to generate electricity responsive to sunlight irradiating the front surface or the back surface, or both of the front and back surfaces, of the second photovoltaic module;packing, for shipping, at least the first photovoltaic module and the second photovoltaic module;shipping, to an installation site, at least the packed first photovoltaic module and second photovoltaic module; andinstalling, at the installation site, at least the first photovoltaic module and the second photovoltaic module;interconnecting, at the installation site, the installed first photovoltaic module and the installed second photovoltaic module with a third conductor comprising an elongated body defining first and second ends, the first end being in electrical contact with the first conductor, the second end being in electrical contact with the conductor;completely enclosing, with a singular-bodied interconnection protector, each of the third conductor, the first conductor, the second conductor, the electrical contact between the first end and the first conductor, the electrical contact between the second end and the second conductor, an exterior region of the front surface of the first photovoltaic module, an exterior region of the back surface of the first photovoltaic module, an exterior region of the at least one of the edge surfaces of the first photovoltaic module, an exterior region of the front surface of the second photovoltaic module, an exterior region of the back surface of the second photovoltaic module, and an exterior region of the at least one of the edge surfaces of the second photovoltaic module; andfilling, with one or more potting materials, a volume inside the singular-bodied interconnection protector that is not occupied by the third conductor, the first conductor, the second conductor, the electrical contact between the first end and the first conductor, the electrical contact between the second end and the second conductor, the exterior region of the front surface of the first photovoltaic module, the exterior region of the back surface of the first photovoltaic module, the exterior region of the at least one of the edge surfaces of the first photovoltaic module, the exterior region of the front surface of the second photovoltaic module, the exterior region of the back surface of the second photovoltaic module, and the exterior region of the at least one of the edge surfaces of the second photovoltaic module. 23. The method of claim 22 wherein the first photovoltaic module includes one selected from a group consisting of silicon, cadmium telluride, CIGS, and organics. 24. The method of claim 22 wherein, prior to packing, the first interconnect tab is at least partially coated with a first protective film and the second interconnect tab is at least partially coated with a second protective film, and wherein the process for interconnecting, at the installation site, the installed first photovoltaic module and the installed second photovoltaic module includes piercing the first protective film and piercing the second protective film. 25. The method of claim 22 wherein, prior to packing, the first interconnect tab is at least partially coated with a first protective film and the second interconnect tab is at least partially coated with a second protective film, and wherein the process for interconnecting, at the installation site, the installed first photovoltaic module and the installed second photovoltaic module removing the first protective film and removing the second protective film.
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